KR101555224B1 - Welding apparatus with clamping and gas monitoring function - Google Patents

Welding apparatus with clamping and gas monitoring function Download PDF

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Publication number
KR101555224B1
KR101555224B1 KR1020140057174A KR20140057174A KR101555224B1 KR 101555224 B1 KR101555224 B1 KR 101555224B1 KR 1020140057174 A KR1020140057174 A KR 1020140057174A KR 20140057174 A KR20140057174 A KR 20140057174A KR 101555224 B1 KR101555224 B1 KR 101555224B1
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KR
South Korea
Prior art keywords
unit
welding
workpiece
clamping
gas
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KR1020140057174A
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Korean (ko)
Inventor
권종만
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(주)다우테크놀로지
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Priority to KR1020140057174A priority Critical patent/KR101555224B1/en
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Publication of KR101555224B1 publication Critical patent/KR101555224B1/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
    • B23K5/00—Gas flame welding
    • B23K5/006—Gas flame welding specially adapted for particular articles or work
    • 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
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0258—Electric supply or control circuits therefor
    • 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
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0282—Carriages forming part of a welding unit
    • 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
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps
    • 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
    • B23K5/00—Gas flame welding
    • B23K5/22—Auxiliary equipment, e.g. backings, guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
    • B25J19/02—Sensing devices
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45104—Lasrobot, welding robot

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)

Abstract

And a control unit (500) for controlling the clamping unit and the welding robot. The welding apparatus includes a gas supply unit (10) for supplying gas to the welding robot (400) ; A gas pressure sensing unit 20 for sensing the pressure of the gas in the gas supply unit 10; A high-pressure air supply unit (30) for supplying high-pressure air to the clamping unit; An air pressure sensing unit 40 sensing air pressure supplied to the high-pressure air supply unit 30; And a plurality of warning lamps (50) selectively illuminated according to the operation and stoppage of the welding apparatus. The control unit (500) detects the gas pressure in the gas pressure sensing unit (20) and the air pressure sensing unit Wherein the plurality of warning lamps (50) are selectively turned on after the welding apparatus (1000) is operated or stopped according to the detected signal.

Description

[0001] Welding apparatus with clamping and gas monitoring function [0002]

The present invention relates to a welding apparatus provided with welding defect prevention and clamping failure monitoring and control functions such as bubbles due to welding gas supply abnormality, and more particularly, to a welding apparatus for monitoring and controlling welding gas and clamping pneumatic pressure in a welding apparatus, And more particularly, to a welding apparatus provided with a welding gas supply abnormality and a clamping failure monitoring and control function, which are capable of stopping the welding robot operation of the welding apparatus and easily detecting the cause of the shutdown.

Suspension devices in automobiles are devices that prevent shocks on the road surface from being transmitted directly to the vehicle body or engine so as to allow the vehicle to travel stably. Such suspension devices are used in suspension devices such as suspension spring, shock absorber, Components.

Among them, the control arms (lower arm and upper arm) support the wheel and control the movement thereof, and durability is required as the force is simultaneously transmitted from the wheel in various directions when the vehicle is running.

At this time, the control arm is connected to the knuckle at one end via the ball joint and the other end is connected to the frame via the shaft together with the bush. The control arm has a rigid steel (Steel) or aluminum.

However, the control arm of steel is manufactured through many manufacturing processes.

In addition, the aluminum control arm is produced by forging the whole shape by the forging method and assembling the accessories such as the bush and the ball joint. Therefore, when the aluminum control arm is manufactured by the forging method using aluminum, In general, the manufacturing cost is more than three times as much as that of the steel material, and the early replacement of the forged metal mold for manufacturing the control arm greatly increases the mold replacement cost.

In addition, the aluminum control arm using the forged construction method has a complicated manufacturing process like the steel material control arm, and the productivity of the entire manufacturing process is also lowered.

Therefore, recently, a first processed product (hereinafter referred to as a "workpiece") is produced by using a method such as forging, and then a control arm is manufactured by welding some parts (hereinafter referred to as "base material") to a workpiece .

However, since the welding operation is continued while lacking the welding gas in the process of manufacturing the control arm of the vehicle through the welding, the weld bead is not uniformly formed, and at the same time, many pores are formed in the bead, .

In addition, when the air pressure of the clamping unit for fixing the workpiece and the base material drops below the proper pressure, the gap between the workpiece and the workpiece must be maintained, There is a problem that the welding is defective.

KR 10-2011-0099169 A KR 10-1185363 B1 KR 10-2009-0063519 A KR 10-0794131 B1

The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a welding robot, which detects, monitors and controls a pressure of a welding gas supplied to the welding robot, The present invention has been made to solve the above-mentioned problems occurring in the prior art.

Further, the present invention provides a welding apparatus capable of preventing a problem that welding is performed without closely keeping the material to be welded and the material to be welded by sensing the air pressure of the clamping unit for fixing the workpiece and the workpiece, There is another purpose in.

In addition, another object of the present invention is to provide a welding apparatus capable of detecting the cause of the shutdown when the operation of the welding apparatus is stopped by detecting the welding gas and the clamping pneumatic pressure, have.

The present invention relates to a welding apparatus comprising a welding robot for welding an object to be welded fixed to a clamping unit and a control unit (500) for controlling the clamping unit and the welding robot, 10); A gas pressure sensing unit 20 for sensing the pressure of the gas in the gas supply unit 10; A high-pressure air supply unit (30) for supplying high-pressure air to the clamping unit; An air pressure sensing unit 40 sensing air pressure supplied to the high-pressure air supply unit 30; And a plurality of warning lamps (50) selectively illuminated according to the operation and stoppage of the welding apparatus. The control unit (500) detects the gas pressure in the gas pressure sensing unit (20) and the air pressure sensing unit And the plurality of warning lamps 50 are selectively turned on after activating or stopping the welding apparatus 1000 according to the received signals. The plurality of warning lamps may be composed of a red light, a yellow light (yellow light), a green light, or the like.

At this time, if the gas pressure sensed by the gas pressure sensing unit and the air pressure sensing unit is in the range of 3.0 to 8.0 kgf / cm 2 and the air pressure is higher than or equal to 4.0 kgf / cm 2, And when the gas pressure sensed by the gas pressure sensing unit is higher than 8.0 kgf / cm 2 or lower than 3.0 kgf / cm 2, the green light is turned off, and the red light and the yellow light are simultaneously lighted The welding robot is stopped, and when the air pressure sensed by the air pressure sensing unit is lower than 4.0 kgf / cm2, the green lamp is turned off, and the red lamp and the blue lamp are simultaneously lighted , And stopping the welding robot.

Meanwhile, the first clamping unit may include a lower die on which the first base material is seated on the upper surface, and one end coupled to one side of the lower die so as to be rotated by a hinge, An upper die; And a cylinder unit coupled to one end of the upper die for rotating operation.

The upper die may have an arc-shaped seating portion formed in an arc shape in conformity with the shape of the first base material, and a plurality of alignment members may protrude from both sides of the seating portion at predetermined intervals.

The upper die may be provided with protrusions for inserting and fixing the workpieces, and a plurality of alignment members may protrude from both sides of the protrusions at predetermined intervals.

On the other hand, the second clamping unit may include: the welded object to which the first base material is welded; a seat portion on which the second base material is seated; A clamper for pressing and fixing the workpiece and the second base material on which the seating part is seated; And a cylinder unit that rotates the clamper to fix or release the workpieces to be welded.

The seat portion includes a first alignment member inserted into a coupling hole formed at one end of the workpiece to fix one end of the workpiece, A second alignment member inserted into the through hole formed in one side surface of the workpiece to fix the position of the workpiece; And a third alignment member protruding to be inserted into the through hole of the second base material to fix the position of the second base material.

On the other hand, the third clamping unit includes: a seating part which is seated on the second clamping unit and is formed such that the opposite surface of the workpiece to which the second base material is welded is positioned upward; A first, second, and third clamper for pressing the workpiece and the second base material seated on the seating portion;

And a cylinder unit installed in each of the first, second, and third clamper to rotate or rotate the first, second, and third clamper to fix or release the workpiece and the second base material.

The seat portion includes a first alignment member inserted into a coupling hole formed at one end of the workpiece to fix one end of the workpiece, A second alignment member inserted into the through hole formed in one side surface of the workpiece to fix the position of the workpiece; And a third alignment member protruding to be inserted into the through hole of the second base material to fix the position of the second base material.

The present invention monitors and controls the pressure of the welding gas supplied to the welding robot to prevent welding defects such as formation of pores in the welding bead due to insufficient welding gas. In addition, the present invention can prevent the problem that defects occur because welding is performed without closely keeping the workpiece and the base material by monitoring and controlling the air pressure of the clamping unit for fixing the workpiece and the workpiece.

Further, the present invention detects the welding gas and the clamping pneumatic pressure and selectively turns on the plurality of warning lamps when the operation of the welding apparatus is stopped due to the welding gas or the pneumatic pressure, So that welding can be resumed.

1 is a view showing an example of a control arm,
FIG. 2 is a view showing an example of a welding apparatus provided with a welding gas and clamping fault monitoring and control function according to the present invention,
3 is a view showing an example of a state in which the upper die of the first clamping device of the present invention is opened;
4 is a side view showing a use example of the first clamping device of the present invention,
5 is a view showing an example in which the clamper of the second clamping device of the present invention is opened;
6 is a use state diagram showing an example of use of the second clamping device of the present invention,
7 is a use state diagram showing an example of use of the third clamping device of the present invention,
FIG. 8 is a view showing an example of a welding robot according to the present invention,
9 is a perspective view showing an example of a workpiece to be welded according to the present invention,
10 is a perspective view showing an example where a first base material is welded to an object to be welded according to the present invention,
11 is a photograph showing an example in which first and second base metals are welded to an object to be welded according to the present invention.

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

The present invention relates to a welding apparatus comprising a welding robot for welding an object to be welded fixed to a clamping unit and a control unit (500) for controlling the clamping unit and the welding robot, A high pressure air supply unit 30 for supplying high pressure air as a clamping unit, and a high pressure air supply unit 30 for supplying high pressure air to the high pressure air supply unit 30. The gas pressure sensing unit 20 senses the gas pressure of the gas supply unit 10, An air pressure sensing unit 40 for sensing the supplied air pressure, and a plurality of warning lamps 50, which are selectively turned on and off according to the operation and stoppage states of the welding apparatus. The control unit 500 activates or stops the welding apparatus 1000 according to the signals sensed by the gas pressure sensing unit 20 and the air pressure sensing unit 40 and then selects the plurality of warning lights 50 . The plurality of warning lights 50 are composed of a red light 51, a yellow light 52, a green light 53, and a blue light 54.

The present invention relates to a welding apparatus for welding a control arm of a vehicle, which comprises a first clamping unit 100, a second clamping unit 200 and a third clamping unit 300 A welding robot 400 and a control unit 500.

The first clamping unit 100 includes a lower die 110 on which the first base material 2 is seated on the upper surface as shown in Figs. 3 and 4, and a lower die 110 having one end thereof hinged to one side of the lower die 110 And a cylinder unit 130 coupled to one end of the upper die 120 for rotating the upper die 120. The upper die 120 is fixed to the upper portion of the fixed die 110, do.

At this time, on the upper surface of the lower die 110, there is formed an arc-shaped seating part 111 formed in a shape corresponding to the shape of the first base material 2, and a plurality of alignment members 112 are formed on both sides of the arc- Are protruded at regular intervals.

A protrusion 121 is formed on the bottom surface of the upper die 120 to fix the workpiece 1 and a plurality of alignment members 122 protrude from both sides of the protrusion 121 at predetermined intervals.

With this configuration, first, the arc-shaped first base material 2 is placed on the arc-shaped seating portion 111 and then the workpiece 1 is inserted and fixed to the projection 121 of the upper die 120, Then, the operator operates the cylinder unit 130 to lower the upper die 120 and bring it into close contact with the lower die 110.

When the upper die 120 is lowered and brought into close contact with the lower die 110, the contact surface between the workpiece 1 and the first base material 2 is exposed to the side surfaces of the upper die 120 and the lower die 110, The welding unit 400 described below automatically welds along the contact surfaces of the exposed workpiece 1 and the first base material 2. [

As a result, the arc-shaped first base material 2 is welded to one side of the workpiece 1 as shown in the photograph of FIG. 9 while forming the welded portion W1 on the side surface as shown in the photograph of FIG.

5 and 6, the second clamping unit 200 includes a seating part 210 on which the workpiece 1 and the second base material 3 on which the first base material 2 is welded are seated, A clamper 220 for pressing and fixing the workpiece 1 and the second base material 3 which are seated on the seating part 210 and a clamping mechanism 220 installed on the clamper 220 to rotate the clamper 220, And a cylinder unit 230 for fixing or releasing the cylinder.

At this time, the seating part 210 includes a first alignment member 211 inserted into the coupling hole 1A formed at one end of the workpiece 1 and fixing one end of the workpiece 1, A second alignment member 212 which is inserted into the through hole 1B formed in one side of the first base material 3 and fixes the position of the workpiece 1 and the through hole 3A of the second base material 3, And a third alignment member 213 for fixing the position of the base material 3.

5, the clamper 220 is formed with first, second and third pressing plates 221, 222, and 223 at the tip thereof so as to press the workpiece 1 relatively wide, As shown in Fig. 6, the presser plate is pressed against the upper portion of the workpiece 1 and presses the upper portion of the second base material 3, respectively.

10, the workpiece 1 is moved by the first and second alignment members 211 and 212 formed on the seating portion 210 of the second clamping unit 200, The through hole 3A of the second base material 3 is inserted and fixed to the third alignment member 213 after the second base material 3 is positioned at one end of the workpiece 1, do.

When the positions of the workpiece 1 and the second base material 3 are aligned in this manner, an operator rotates the operation lever R to supply air to the cylinder unit 230, The workpiece 1 and the second base material 3 are fixed by pressing the upper portion of the welding material 1 and the second base material 3 so that the welding robot 400 can move the workpiece 1 and the second base material 3, The upper welding part W2 is welded to the workpiece 1 with the second base material 3 as shown in Fig.

The third clamping unit 300 is formed such that the opposite surface of the workpiece 1 on which the second base material 3 is welded is seated on the second clamping unit 200 as shown in FIG. 7, A first and a second clamper 320, 330, and 340 for pressing the workpiece 1 and the second base material 3 that are seated on the seating portion 310, The first and second clamper members 320 and 330 are installed on the first and second clamper members 320 and 330 to rotate and rotate the first, second and third clamper members 320 and 330, Units 350, 360, and 370, respectively.

The seating part 310 includes a first alignment member 311 inserted into the coupling hole 1A formed at one end of the workpiece 1 and fixing one end of the workpiece 1, A second alignment member 312 inserted in the through hole 1B formed in one side face and fixing the position of the workpiece 1 and a second alignment member 312 protruding and formed to be inserted into the through hole 3A of the second base material 3, And a third alignment member 313 for fixing the position of the base material 3.

With this configuration, the workpiece 1 partially welded to the upper portion of the second base material 3 is seated in the seating portion 310 in an inverted state such that a surface opposite to the second clamping unit 200 is exposed upward The welded object 1 is aligned in position using the first and third alignment members 311, 312 and 313 provided in the seating part 310 as in the second clamping unit 200, Next, when the operator rotates the operation lever (not shown), the first, second, and third clamper 320, 330, and 340 are simultaneously lowered while air is supplied to the cylinder units 350, 360, The workpiece 1 to be welded is fixed.

The first clamper 320 is positioned to press the upper portion of the second base material 3 and the second clamper 330 is positioned to press the middle portion of the workpiece 1 and the third clamper 340 Are respectively positioned so as to fix the side portions of the workpieces 1 so that the workpieces 1 and the second base material 3 do not flow while being welded and are held more firmly fixed.

The tip end of the second clamper 330 is formed in the shape of a letter "Y " so that the first and second pressing plates 331 and 332 are formed, thereby pressing the intermediate portion of the workpiece 1 .

After the workpieces 1 are firmly fixed by the first, second and third clamper 320, 330 and 340, the welding portion W3 shown in FIG. 11 is welded by the welding robot 400 described later .

As shown in FIG. 8, the welding robot 400 welds the workpiece 1 and the first and second base materials 2 and 3 fixed to the first, second and third clamping units 100, 200 and 300, respectively, 2 welding, the welding robot 400 moves welding along a predetermined path under the control of the control unit 500 to be described later and automatically advances welding to a predetermined position.

As shown in FIG. 2, the first, second and third clamping units 100, 200 and 300 and the welding robot 400 are provided with a gas supply unit 10 for supplying gas to the welding robot 400, A high pressure air supply unit 30 for supplying high pressure air to the first, second and third clamping units 100, 200 and 300, a high pressure air supply unit 30 for supplying high pressure air An air pressure sensing unit 40 that senses the air pressure supplied to the supply unit 30 and a plurality of warning lights 50 that are selectively turned on in accordance with the operation and stoppage states of the welding apparatus 1000, The control unit 500 controls the plurality of warning lamps 50 according to the gas pressure and the air pressure sensed by the gas pressure sensing unit 20 and the air pressure sensing unit 40, The device 1000 is started or stopped.

To this end, the present invention is characterized in that the plurality of warning lamps 50 are composed of a red lamp 51, a yellow lamp 52, a green lamp 53 and a blue lamp 54, If the gas pressure sensed by the pressure sensing unit 20 and the air pressure sensing unit 40 is in the range of 3.0 to 8.0 kgf / cm 2 and the air pressure is higher than or equal to 4.0 kgf / cm 2, And when the gas pressure detected by the gas pressure sensing unit 20 is higher than 8.0 kgf / cm 2 or lower than 3.0 kgf / cm 2, the green light 53 is turned off and the red light 51 and yellow The welding robot 400 is stopped and the green lamp 53 is turned off when the air pressure sensed by the air pressure sensing unit 40 is lower than 4.0 kgf / The red lamp 51 and the blue lamp 54 are turned on simultaneously, and then the welding robot 400 is stopped.

Accordingly, when the welding apparatus 1000 according to the present invention is normally operated, only the green lamp 53 is kept on, and when the gas pressure is higher or lower than the set pressure, the green lamp 53 is turned on and the red lamp 51 and the yellow light 52 are turned on at the same time to recognize the gas pressure abnormality by the operator and the air pressure supplied to each of the cylinder units provided in the first, second and third clamping units 100, 200, The green light 53 is turned on and the red light 51 and the blue light 54 are simultaneously turned on to notify the operator of the abnormality of the air pressure. 50), it is possible to quickly recognize whether the gas pressure or the air pressure is abnormal.

As a result, the operator can quickly restart the welding apparatus 1000 by inspecting and replenishing the gas or air supply line, thereby greatly reducing the time for which the operation is stopped due to the abnormality of the welding apparatus 1000.

Thus, by monitoring the pressure of the welding gas supplied to the welding robot according to the present invention, it is possible to control the operation of the welding apparatus such as a welding robot and to control the welding defect such as formation of pores in the welding bead It is prevented in advance.

In addition, by sensing the pneumatic pressure of the clamping unit for fixing the workpiece and the base material, it is possible to prevent the problem that the workpiece is welded without being held in close contact with the workpiece, thereby causing defects.

1: Workpiece 1A: Coupling ball
1B: Through hole 2: First base material
3: Second base material 3A: Through hole
10: gas supply unit 20: gas pressure sensing unit
30: high pressure air supply unit 40: air pressure sensing unit
50: Warning light 51: Red light
52: Yellow light 53: Green light
54: blue lamp 100: first clamping unit
110: lower die 111: arc-
112: alignment member 120: upper die
121: projecting portion 122: alignment member
130: cylinder unit 200: second clamping unit
210: seat part 211: first alignment member
212: second alignment member 213: third alignment member
220: clamper 221: first presser plate
222: second press plate 223: third press plate
230: cylinder unit 300: third clamping unit
310: seat part 311: first alignment member
312: second alignment member 313: third alignment member
320: first clamper 330: second clamper
331: first press plate 332: second press plate
340: third clamper 350, 360, 370: cylinder unit
R: Operation lever W1, W2, W3:

Claims (10)

delete delete A welding robot for welding an object to be welded fixed to a clamping unit, and a control unit (500) for controlling the clamping unit and the welding robot,
A gas supply unit 10 for supplying gas to the welding robot 400;
A gas pressure sensing unit 20 for sensing the pressure of the gas in the gas supply unit 10;
A high-pressure air supply unit (30) for supplying high-pressure air to the clamping unit;
An air pressure sensing unit 40 sensing air pressure supplied to the high-pressure air supply unit 30;
And a plurality of warning lamps (50) selectively illuminated according to the operation and stoppage states of the welding apparatus,
The control unit 500 activates or stops the welding apparatus 1000 according to the signals sensed by the gas pressure sensing unit 20 and the air pressure sensing unit 40 and then drives the plurality of warning lamps 50 Optionally,

The plurality of warning lights (50)
A red light 51, a yellow light 52, a green light 53, and a blue light 54,

The control unit (500)
If the gas pressure sensed by the gas pressure sensing unit 20 and the air pressure sensing unit 40 is in the range of 3.0 to 8.0 kgf / cm 2 and the air pressure is higher than or equal to 4.0 kgf / cm 2, (53) is turned on,
If the gas pressure sensed by the gas pressure sensing unit 20 is lower than the predetermined gas pressure of 8.0 kgf / cm 2 or lower than 3.0 kgf / cm 2, the green light 53 is turned off, The yellow light 52 is simultaneously turned on, the welding robot 400 is stopped,
If the air pressure sensed by the air pressure sensing unit 40 is lower than 4.0 kgf / cm 2, the green light 53 is turned off, and the red light 51 and the blue light 54 are simultaneously lighted Next, the welding robot (400) is stopped. A welding apparatus equipped with a welding gas and a clamping fault monitoring and control function.
delete A welding robot for welding an object to be welded fixed to a clamping unit, and a control unit (500) for controlling the clamping unit and the welding robot,
A gas supply unit 10 for supplying gas to the welding robot 400;
A gas pressure sensing unit 20 for sensing the pressure of the gas in the gas supply unit 10;
A high-pressure air supply unit (30) for supplying high-pressure air to the clamping unit;
An air pressure sensing unit 40 sensing air pressure supplied to the high-pressure air supply unit 30;
And a plurality of warning lamps (50) selectively illuminated according to the operation and stoppage states of the welding apparatus,
The control unit 500 activates or stops the welding apparatus 1000 according to the signals sensed by the gas pressure sensing unit 20 and the air pressure sensing unit 40 and then drives the plurality of warning lamps 50 Optionally,

The welding apparatus 1000 includes a first clamping unit 100 for fixing the arc-shaped first base material 2 to be welded to the workpiece 1 so as to be welded, and a second clamping unit 100 for fixing the first clamping unit 100 to the first clamping unit 100 A welding robot 400 for welding the workpieces 1 fixed and a control unit 500 for controlling the first clamping unit 100 and the welding robot 400,

The first clamping unit (100)
A lower die 110 on which the first base material 2 is seated;
An upper die 120 coupled to one end of the lower die 110 to be rotated by a hinge and to be attached to the upper portion of the lower die 110 with the workpiece 1 installed thereon;
And a cylinder unit (130) coupled to one end of the upper die (120)

On the upper surface of the lower die 110, there is formed an arc-shaped seating part 111 formed in a shape corresponding to the shape of the first base material 2,
Wherein a plurality of alignment members (112) protrude from both sides of the arc-shaped seating part (111) at a predetermined interval, wherein the welding and clamping failure monitoring and control functions are provided.
The method of claim 5,
A protrusion 121 is formed on the bottom surface of the upper die 120 to fix the workpiece 1,
Wherein a plurality of alignment members (122) protrude from both sides of the protrusion (121) at regular intervals.
The method of claim 5,
The welding apparatus 1000 includes a second clamping unit 130 for fixing an upper portion of a cylindrical second base material 3 having a through hole 3A formed in the workpiece 1 to which the first base material 2 is welded, A third clamping unit 300 for fixing the lower part of the second base material 3 to be welded to the workpiece 1 so as to be welded to the first and second clamping units 200 and 300; And a control unit (500) for controlling the second and third clamping units (200, 300) and the welding robot (400), wherein the welding robot (400)

The second clamping unit (200)
A welded part (1) to which the first base material (2) is welded, a seating part (210) on which the second base material (3) is seated;
A clamper (220) for pressing and fixing the workpiece (1) and the second base material (3) on which the seating part (210) is seated;
And a cylinder unit (230) for rotating the clamper (220) to fix or release the workpiece (1).
The method of claim 7,
The seating part (210)
A first alignment member 211 inserted into the coupling hole 1A formed at one end of the workpiece 1 to fix one end of the workpiece 1;
A second alignment member (212) inserted into the through hole (1B) formed on one side of the workpiece (1) to fix the position of the workpiece (1);
And a third alignment member (213) protruding from the through hole (3A) of the second base material (3) to fix the position of the second base material (3). Welding equipment with monitoring and control functions.
The method of claim 7,
The third clamping unit (300)
A seating part 310 which is seated in the second clamping unit 200 and is formed in a symmetrical shape so that the opposite surface of the workpiece 1 to which the second base material 3 is welded is positioned at an upper part;
First, second and third clamper (320, 330, 340) for pressing the workpiece (1) and the second base material (3) seated on the seating part (310);
The first to third clamper 320, 330 and 340 are respectively installed on the first, second and third clamper 320, 330 and 340 to rotate the first and second clamper 320, And a cylinder unit (350, 360, 370) for fixing or releasing the welding gas and the clamping failure.
delete
KR1020140057174A 2014-05-13 2014-05-13 Welding apparatus with clamping and gas monitoring function KR101555224B1 (en)

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KR1020140057174A KR101555224B1 (en) 2014-05-13 2014-05-13 Welding apparatus with clamping and gas monitoring function

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102240608B1 (en) * 2020-12-18 2021-04-15 주식회사 다올이엔지 welding jig
KR102400454B1 (en) * 2020-12-18 2022-05-20 한국생산기술연구원 Shield gas control system for arc wire metal 3D printing process and shield gas control method using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102240608B1 (en) * 2020-12-18 2021-04-15 주식회사 다올이엔지 welding jig
KR102400454B1 (en) * 2020-12-18 2022-05-20 한국생산기술연구원 Shield gas control system for arc wire metal 3D printing process and shield gas control method using the same

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