KR100461628B1 - Automatic welding carriage with weaving unit - Google Patents

Abstract

The present invention relates to an automatic welding weaving carriage, the object of which is applicable to vertical, horizontal, inclined, downward, upward and transverse electron post (all posture) welds, and the gap (GAP) that changes depending on the state of each weld It can cope with the work change according to the change of condition, welding speed, angle of improvement, number of weld stacks, and it provides automatic welding weaving carriage that can be automatically welded to all postures during hull assembly welding by simplifying equipment handling through light weight of equipment. It is.

According to the present invention, a rack gear is installed by a bolt on an aluminum top surface of a square bar shape, and a magnet is installed on a bottom surface symmetrical with a portion where the rack gear is installed, and a magnet is installed, and the rack gear and the magnet are not installed. Guide rails are formed on both sides of the rectangular bar-shaped aluminum, and a magnet rail part attached to the welding part by an installed magnet; A guide roller which is in contact with the guide of the magnet rail to help the stable driving of the traveling cart, a gear part of which one side is engaged with the rack gear of the magnet rail, a clutch separating the rack gear of the gear part and the magnet rail part; And a holding unit operated by the clutch and connected to the gear unit, a traveling motor for operating the gear unit, a bogie body provided with the guide roller, the clutch, the holding unit and the gear unit, and a carrying handle installed on the bogie body. And, the running cart consisting of a connector installed on one side of the bogie body to automatically run on the magnet rail; A vertical slider connected to and installed at the connecting portion of the running cart and configured to enable vertical movement of the torch with respect to the weld line, and a left and right slider configured to be connected to the vertical slider and to move the torch in the horizontal direction with respect to the weld line. And a torch comprising a weaving DC motor connected to and installed on the left and right sliders to directly drive the pendulum weaving function of the torch, and a torch clamp connected to the weaving DC motor by a worm gear and a rotating shaft. Weaving unit; Excellent welding quality by proactively coping with changes in welding conditions caused by changes in gaps, improved conditions, and weld postures generated during all posture welding, including a control unit installed in the traveling cart and controlling the traveling cart and the torch weaving unit. It is to provide an automatic welding weaving carriage that can reduce the welding maneuver due to the increase in the arc rate by the automatic welding.

Description

Automatic welding carriage with weaving unit}

The present invention relates to an automatic welding weaving carriage, in the welding core before butt and fillet in the vertical, horizontal, inclined, downward, upward, and transverse postures by using a simple traveling cart in flux cored arc welding performed during hull assembly work. The present invention relates to an automatic welding weaving carriage which enables automatic welding.

Conventionally used welding apparatus is a dedicated welding apparatus with only one posture when applying horizontal fillet welding, inverted butt welding and downward butt welding, and it should be applied to a specific welding part in a limited way, resulting in reduced equipment efficiency and automatic welding. The application of was insufficient. In addition, some of the developed foreign equipment, the heavy weight of the equipment, handling is inconvenient during work, and the performance of the torch weaving device installed to overcome the changing working conditions for each welding when performing the electric field welding is insufficient performance rate There were a number of problems, including the slowdown.

The present invention has been made in consideration of the above problems, the object of which is applicable to the electric field (all posture) welding part of the vertical, horizontal, inclination, downward, upward, and lateral direction, the gap that changes according to the state of each welding part ( Automatic welding weaving carriage which can cope with the work change according to the change of GAP) condition, welding speed, angle of improvement, number of welded stacks, and simplifying equipment handling through light weight of equipment. To provide.

According to the present invention, a rack gear is installed by a bolt on an aluminum top surface of a square bar shape, and a magnet is installed on a bottom surface symmetrical with a portion where the rack gear is installed, and a magnet is installed, and the rack gear and the magnet are not installed. Guides are formed on both sides of the rectangular bar-shaped aluminum, the magnet rail portion is attached to the welding portion by the magnet installed; A guide roller which is in contact with the guide of the magnet rail to help the stable driving of the traveling cart, a gear part of which one side is engaged with the rack gear of the magnet rail, a clutch separating the rack gear of the gear part and the magnet rail part; And a holding unit operated by the clutch and connected to the gear unit, a traveling motor for operating the gear unit, a bogie body provided with the guide roller, the clutch, the holding unit and the gear unit, and a carrying handle installed on the bogie body. And, the running cart consisting of a connector installed on one side of the bogie body to automatically run on the magnet rail; A vertical slider connected to and installed at the connecting portion of the running cart and configured to enable vertical movement of the torch with respect to the weld line, and a left and right slider configured to be connected to the vertical slider and to move the torch in the horizontal direction with respect to the weld line. And a torch comprising a weaving DC motor connected to and installed on the left and right sliders to directly drive the pendulum weaving function of the torch, and a torch clamp connected to the weaving DC motor by a worm gear and a rotating shaft. Weaving unit; Excellent welding quality by proactively coping with changes in welding conditions caused by changes in gaps, improved conditions, and weld postures generated during all posture welding, including a control unit installed in the traveling cart and controlling the traveling cart and the torch weaving unit. It is to provide an automatic welding weaving carriage that can reduce the welding maneuver due to the increase in the arc rate by the automatic welding.

1 is an exemplary view showing a configuration according to the present invention

Figure 2 is an exemplary view showing the front of the present invention

3 is an exemplary view showing aspects of the present invention.

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a detailed illustration of 'B' part of FIG.

Figure 6 is an illustration of a magnet rail assembly according to the present invention

7 is a circuit diagram of a control unit according to the present invention;

* Explanation of symbols for main parts of the drawings

(10): magnet rail portion 11: rack gear

(12): Magnet 13: Guide

20: driving balance part 21: balance body

(22): guide roller 23: gear part

24: clutch 25: drive motor

(26): carrying handle (27): connector

(28): holding unit 30: Tochi weaving unit

(31): Up and down slider portion 32: Left and right slider portion

33: weaving DC motor 34: torch clamp portion

(35): axis of rotation (40): control unit

(41): welding angle adjustment terminal (42): left weaving stop time adjustment terminal

(43): Central weaving stop time adjustment terminal

(44): Right weaving stop time adjustment terminal

(45): Weaving width adjusting terminal (46): Weaving speed adjusting terminal

(47): Weaving pattern switch (48): Travel speed control terminal

(49): welding / non-welding selection switch (231): first gear

(232): second gear (233): third gear

(234): connecting rod (235): bearing

(236): Gearbody (237): Mobile

(241): clutch pad (281): spring

1 is an exemplary view showing a configuration according to the present invention, Figure 2 is an exemplary view showing a front of the present invention, Figure 3 is an exemplary view showing a side of the present invention, Figure 4 is an AA cross-sectional view of Figure 3 5 is a detailed illustration of the 'B' part of FIG. 3, FIG. 6 is a diagram illustrating an assembly example of a magnet rail according to the present invention, and FIG. 7 is a circuit diagram of a control unit according to the present invention. The magnet rail unit 10 attachable to the welding unit, the traveling cart 20 for automatically traveling on the magnet rail, and the torch weaving unit 30 connected to and installed in the traveling cart 20. And a controller 40 installed on the balance body 21 of the travel balance unit 20 to control the travel balance unit 20 and the torch weaving unit 30.

The magnet rail portion 10 is in the shape of an aluminum square bar 1.5 meters long, the rack gear 11 machined on the upper surface is assembled by bolts, the magnet 12 having a magnetic force of 100 kilograms in the lower portion is constant The bolts are assembled to the rails at intervals of three, and the guides 13 protrude and form on both side surfaces where the rack gear 11 and the magnet 12 are not installed. That is, the rack gear 11 and the magnet 12 are installed at positions symmetrical with each other.

The magnet rail portion 10 is to be attached to all the welds in the vertical, horizontal, inclined, downward, upward, transverse direction, the traveling cart 20 can be applied to all welds in the electric posture (all postures) Serve as a guide.

The running cart 20 automatically travels on the magnet rail unit 10 to allow welding in all postures of vertical, horizontal, inclination, downward, upward, and lateral directions, and guides of the magnet rail unit 10. A guide roller 22 which is in contact with 13 to help stable running of the running cart 20, a gear 23 which one side is engaged with the rack gear 11 of the magnet rail 10, and A clutch 24 for separating the gear gear 23 and the rack gear 11 of the magnet rail portion 10, a holding part 28 operated by the clutch 24, and the gear part 23. And a bogie body 21 for installing the driving motor 25, the clutch 24, the holding unit 28, the guide roller 22, the gear unit 23, and the driving motor 25. Consists of a carrying handle 26 installed on the trolley body 21 and a connector 27 installed on one side of the trolley body 21 and connected to the torch weaving unit 30.

The clutch 24 is installed to be connected to the gear portion 23 on one side of the bogie body 21, and a clutch pad connected to and installed on the gear portion 23 by a cam (not shown) installed on the shaft of the clutch during operation. 241 is moved to space between the gear part 23 and the rack gear 11.

The holding portion 28 is to return the clutch pad 241 moved by the operation of the clutch, the spring 281 is included and connected to one side of the bogie body 21, the one end is the gear portion (23) is connected and installed.

The guide roller 22 is installed below the bogie body 21 so as to contact and slide on the guide 13 of the magnet rail unit 10. When the driving bogie unit runs, the driving bogie 20 is a magnet rail unit ( 10) Guide and assist in driving safely above.

The gear unit 23 is operated by the driving motor 25 to move the driving cart 20 along the magnet rail unit 10 so as to be located between the guide roller 22 and the bogie body 21. A first gear 231 installed and connected to the driving motor 25, a second gear 232 engaged with one side of the first gear 231, and a second gear 232. The third gear 233 integrally operated, the connecting rod 234 configured such that the second gear 232 and the third gear 233 have the same rotation axis, and the connecting rod 234 provided with the second gear A gear body 236 having an end supported by the bearing 235 and a moving table 237 supported by the bearing 235 with the end of the connecting rod 234 provided with the third gear are provided. At this time, the connecting rod 234, in which the second gear and the third gear are installed, has a double structure, and the moving table 237 to which the end of the connecting rod having the third gear is connected is connected to the holding part 28. The clutch pad 241 is installed at one side of the third gear 233.

That is, when the clutch 24 is operated, the clutch pad 241 is moved by a cam (not shown), and one side (third gear is provided) of the connecting rod 234 configured to be doubled by the clutch pad 241. Connecting rod) is moved, and the movable table is moved by the movement of the connecting rod, and the spring 281 of the holding unit 28 is compressed. When the clutch pad 241, the third gear 233, and the connecting rod 234 are moved by the clutch 24 in this manner, the guide of the magnet rail unit 10 is guided between the guide rollers 22 of the travel cart 20. Insert (13). At this time, the third gear 233 of the gear unit 23 maintains a predetermined distance from the rack gear 11 by the clutch 24.

When the magnet rail portion 10 is inserted between the guide rollers 22 as described above, when the clutch 24 is returned to its original position, the cam (not shown) is returned to remove the force applied to the clutch pad 241 and retained. The movable base 237 is returned to its original position by the elasticity of the spring 281 of the portion 28, and the connecting gear 234 of the third gear 233 is brought back to the original position by the movable stage 237. Since the three gears 233 are engaged, the running cart 20 is provided in the magnet rail 10.

As described above, the traveling cart 20 is installed in the magnet rail unit 10, and the driving force of the driving motor 25 is directly transmitted by the first gear 231, and the second gear 231 is driven by the first gear 231. As the gear 232 is rotated, and the connecting rod 234 is rotated by the second gear 232, and the third gear 233 installed at the connecting rod 234 is rotated, the magnet rail unit 10 is rotated. The traveling cart 20 moves along the rack gear 11 installed on the top surface. In this case, the third gear 233 and the rack gear 11 serve as a pinion and a rack.

The torch weaving unit 30 is connected to and installed on the connector 27 of the running cart and is connected to the upper and lower sliders 31 configured to enable the torch to move up and down with respect to the welding line, and to the upper and lower sliders 31. A left and right slider 32 installed and configured to move the torch in the lateral direction with respect to the weld line, and a weaving DC motor connected to and installed in the left and right slider 32 to directly drive the pendulum weaving function of the torch ( 33) and a torch clamp 34 connected to the weaving DC motor 33 and fixing a welding torch. At this time, the torch clamp 34 and the weaving DC motor 33 is connected to the rotary shaft 35 is operated by the worm gear (not shown), the upper / lower / left / right sliders (31, 32) It is moved by the ball screw method. That is, when the upper and lower sliders 31 are operated, the left and right sliders 32, the weaving DC motor 33, and the torch clamp 34 are vertically moved up and down, and the left and right sliders 32 In operation, only the weaving DC motor 33 and the torch clamp 34 are integrally moved left and right, and when the weaving DC motor 33 is driven, the driving force of the weaving DC motor 33 is driven by a worm gear (not shown). The torch transmitted to the rotating shaft 35 and installed in the torch clamp 34 and the torch clamp 34 by the rotating shaft 35 is pendulum weaving.

The control unit 40 is installed on one side of the driving balance unit 20 to control the driving balance unit 20 and the torch weaving unit 30. The driving unit 20 runs, stops, speeds and progresses. The direction, weaving width of the welding torch, weaving speed, weaving stop time, weaving pattern, welding angle and welding / non-welding selection can be controlled.

The welding angle adjusting terminal is a terminal configured to arbitrarily add or decrease the working angle of the torch in a direction perpendicular to the welding line during welding (or in all cases at the time of stopping). The working angle of the welding torch is automatically changed when adjusting the welding angle adjusting terminal because the volume value of the welding angle adjusting terminal is adjusted so that the working angle of the welding torch is manually modified and adjusted every time. That is, when the welding angle adjusting terminal is adjusted regardless of welding / non-welding in the power-on state, the electric resistance value is changed through the PCB card mounted in the control unit 40, and the input voltage amount of the weaving DC motor 33 is changed. Alternately, operate the weaving DC motor 33. When the weaving DC motor 33 is operated in this way, since the worm gear and the rotating shaft 35 are operated, the torch clamp 34 installed on the rotating shaft 35 rotates by a predetermined angle, thereby changing the welding angle.

The torch weaving selection switch designates the weaving shape of the torch during welding operation. In the middle selection, the welding arc is generated while the traveling truck is driven without the weaving of the torch. Depending on the selected value of the various terminals related to the torch weaving (weaving speed adjustment terminal, weaving width adjustment terminal) and the switch (left weaving stop time adjustment switch, center weaving stop time adjustment switch, right weaving stop time adjustment switch) Torch weaving during the process allows for a weld arc to occur. In addition, when the right side selection has the same torch weaving shape as the left side selection, the running cart stops running during the left and right stop time during the torch weaving, thereby preventing the occurrence of the V-improved weld end undercut during the up-butting butt welding. It is possible to secure sufficient amount of deposited metal to prevent welding defect due to lack of weld metal.

When performing the welding operation using the present invention configured as described above, first attach the magnet rail to the portion to be welded, and the clutch lever installed on the upper portion of the traveling cart to install the traveling cart on the attached magnet rail After turning to the left, the third gear of the gear part installed under the driving body is spaced apart from the rack gear of the magnet rail part, and then the guide roller is pushed so as to contact and rotate the guide of the magnet rail through the end of the magnet rail. At this time, when the clutch is in the original position, the third gear of the gear unit installed in the lower portion of the traveling bogie body and one side of the rack gear of the magnet rail are engaged to complete the installation of the traveling bogie.

After the installation of the trolley on the magnet rail is completed, the welding torch connected to the welding wire feeder is fastened to the torch clamp of the torch weaving unit, and the protruding wire of the end of the welding torch with respect to the welding line is brought to the correct position. Adjust the upper and lower sliders and the left and right sliders to adjust the torch position.

In order to check whether the driving balance and various control functions work properly before performing the welding construction, if the 220 volt power cable is connected to the power connection terminal installed in the control portion of the driving balance, the power indicator light is turned on. When power is applied to the driving cart, if the welding / non-welding selection switch is selected as non-welding and then the start button is pressed, the power is supplied to the driving motor of the traveling cart installed on the magnet rail, and the selected position of the traveling cart traveling direction selection switch, According to the adjustment value of the traveling speed adjusting terminal, the traveling cart moves with the designated speed in the designated direction. At this time, when the weaving selector switch is selected to the torch weaving side, the data value according to the selected value of the weaving speed adjusting terminal, the weaving width adjusting terminal, and the left / center / right torch stop time adjusting terminal is read. The data value is converted into electricity through a PCB card mounted in the control unit to supply current to the weaving DC motor of the torch weaving unit to drive the torch weaving unit. At this time, the appropriate torch weaving width, weaving speed, and left / right / center stop time adjustment are determined by the operator according to the gap condition, improved shape, welding posture and welding lamination method of the weld. Adjust by adjusting or selecting the switch.

As such, various control functions were confirmed, and the welding angle adjusting terminal was adjusted so that the welding torch end could be centered on the welding part, and the working angle was matched accurately. Then, the welding torch end was pressed by pressing the trigger switch connected to the welding torch handle. The wire to the required position, then select the appropriate value of the weaving selector switch according to the weld angle, gap condition, and welding position to adjust the proper torch left / right / center stop time, weaving speed and weaving width. , The direction of travel is selected through the direction of travel switch, and the speed of travel is controlled by the speed control terminal.

When all preparation is complete, select the welding / non-welding switch, and then press the start button with the eyepiece protected by the welding surface. The trolley and torch weaving section will automatically activate along the magnet rail.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention is configured to enable the application of automatic vertical welding of vertical, horizontal, downward, inclined, upward, and lateral welding, compared to the one-position automatic welding carriage which has been locally performed when performing conventional hull welding. It is easy to do, and compared with some imported foreign equipment, it is easy to handle the equipment due to the light weight of the equipment, and the workability is excellent, and the welding quality, productivity and workability are improved.

In addition, the left / right / center stop time of the torch weaving part can be adjusted to prevent the occurrence of concave beads by ensuring sufficient weld metal amount in the center of the V-improved welding. Since the left and right pendulum is weaved, there are many effects such as minimizing the change in arc length during weaving, reducing the amount of spatter generated, and improving arc stability and welding quality.

Claims (4)

The rack gear is installed by a bolt on an aluminum upper surface of the square bar shape, the rack is installed on the lower surface symmetrical with the portion where the rack gear is installed and the magnet is installed, and the rack gear and the magnet are not installed. Magnet rail parts attached to the welding part by guides formed on both sides of the aluminum shape, and installed magnets, A guide roller which is in contact with the guide of the magnet rail to help the stable driving of the traveling cart, a gear part of which one side is engaged with the rack gear of the magnet rail, a clutch separating the rack gear of the gear part and the magnet rail part; And a holding unit operated by the clutch and connected to the gear unit, a traveling motor for operating the gear unit, a bogie body provided with the guide roller, the clutch, the holding unit and the gear unit, and a carrying handle installed on the bogie body. And, the running cart consisting of a connector installed on one side of the bogie body to automatically run on the magnet rail, A vertical slider connected to and installed at the connecting portion of the running cart and configured to enable vertical movement of the torch with respect to the weld line, and a left and right slider configured to be connected to the vertical slider and to move the torch in the horizontal direction with respect to the weld line. And a torch comprising a weaving DC motor connected to and installed on the left and right sliders to directly drive the pendulum weaving function of the torch, and a torch clamp connected to the weaving DC motor by a worm gear and a rotating shaft. Weaving unit, Automatic welding weaving carriage is installed on the running cart and comprises a control unit for controlling the running cart and the torch weaving unit. The method of claim 1; The torch weaving unit controls the amount of electricity through a PCB card mounted in the control unit according to the selected value of the weaving speed adjusting terminal, the weaving width adjusting terminal, and the left / center / right torch stop time adjusting terminal installed in the control unit. Automatic welding weaving carriage, characterized in that the motor direction, speed, the amount of rotation to be adjusted. The method of claim 1; The gear part includes a first gear connected to a shaft of the driving motor, a second gear on which one side is engaged with the first gear, and a shaft having the same center axis as the second gear, and on which one side is meshed with the rack gear of the magnet rail. 3 gears, a connecting rod consisting of a double connecting the second gear and the third gear, a gear body bearing one end of the connecting rod, and a bearing supporting the other end of the connecting rod and connected to the holding part Automatic welding weaving carriage, characterized in that configured. The method of claim 1; The torch clamp to which the torch is coupled is rotated about a rotation axis by a weaving DC motor to automatically adjust the torch working angle.