KR101610636B1 - An automatic welding machine for a pipe flange - Google Patents

An automatic welding machine for a pipe flange Download PDF

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Publication number
KR101610636B1
KR101610636B1 KR1020150127017A KR20150127017A KR101610636B1 KR 101610636 B1 KR101610636 B1 KR 101610636B1 KR 1020150127017 A KR1020150127017 A KR 1020150127017A KR 20150127017 A KR20150127017 A KR 20150127017A KR 101610636 B1 KR101610636 B1 KR 101610636B1
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KR
South Korea
Prior art keywords
welding
pipe
flange
unit
roller
Prior art date
Application number
KR1020150127017A
Other languages
Korean (ko)
Inventor
김진수
강동철
Original Assignee
(주)삼호용접기
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Priority to KR1020150127017A priority Critical patent/KR101610636B1/en
Application granted granted Critical
Publication of KR101610636B1 publication Critical patent/KR101610636B1/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
    • 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
    • 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
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • B23K31/027—Making tubes with soldering or 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
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
    • 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
    • B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
    • 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
    • B23K37/0247—Driving means
    • 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
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0294—Transport carriages or vehicles
    • 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
    • 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
    • B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices 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
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0536—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor for maintaining flanges on tubes
    • 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
    • B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0538—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor for rotating tubes, e.g. rollers

Abstract

The present invention relates to an automatic flange welding apparatus, and more particularly, to an automatic flange welding apparatus, which is capable of automatically setting a welding condition for joining an accessory such as a flange to an end of a pipe according to a diameter of the pipe, The present invention relates to an automatic welding apparatus for welding a flange.
The automatic welding apparatus for a flange according to the present invention comprises a base on which a conveying rail of a predetermined length is formed; A vertical support coupled to one side of the base; A welding arm provided on one side of the vertical support so as to be able to move upward and downward and downward and backward and forward; A welding head provided at one end of the welding arm and having welding torches respectively coupled to a pair of positioning sliders for fine adjustment of welding positions; A rotating roller bail installed on the other side of the base and provided with a plurality of rotating rollers for rotating the pipe on one side of the upper side; A pipe clamp part installed on the other side of the top of the rotary roller carriage so as to be lifted up and down and including a clamp roller installed so as to be able to restraint by pressing the upper part of the pipe; A conveying bogie portion provided with a plurality of support rollers installed to be forward and backward along the conveying rail to convey the pipe and support the rear of the pipe; A flange head portion; A pipe entry position detecting portion provided in the flange head portion; And a control unit installed at an upper side of the vertical support to control the welding operation.

Description

An automatic welding machine for a pipe flange,

The present invention relates to an automatic flange welding apparatus, and more particularly, to an automatic flange welding apparatus capable of automatically setting welding conditions for joining flanges or the like to end portions of pipes of various thicknesses, The present invention relates to an automatic flange welding apparatus for improving the welding quality.

Generally, a pipe refers to an elongated hollow tube, which is also referred to as a tube or tube, and is formed in a circular or polygonal cross-section, and is widely used in living facilities such as water pipes and gas pipes or various industrial facilities.

These pipes are mainly used for transportation of fluids (gas, liquids) and powders. They are also used for protection of electric wires and cables in the ground or indoors. They are called pipes for the passage of fluid composed of pipes. , Physical property value, frictional resistance, etc., is referred to as piping.

When piping is performed, the pipeline is formed not only as a straight line but also a curved line. In such a case, if the direction of the pipeline is to be changed, the pipeline may be connected by using a T-pipe or an L- In the case of installing a straight pipe, when the length of the pipe is to be extended, the ends of the pipes are directly connected or connected to each other through a pipe fitting for flanging or the like. The pipe fittings such as T pipe, L pipe, Usually welded to the pipe.

On the other hand, welding is a process in which the steel plate and the steel plate are opposed to each other and the faces are melted and attached. Various welding methods are used according to the type and thickness of the steel plate. And manual welding, in which a person manually welds along a weld line.

In this case, it is easy to perform automatic welding when the weld line is linear or the base material to be welded is a flat plate. Since the automatic welding is not greatly influenced by the skill of the operator, the welding quality is uniform and superior to manual welding, And the welding productivity is high.

On the other hand, if the pipe and the pipe are to be welded together in the longitudinal direction, or if the pipe and the pipe fitting are to be welded as described above, the weld line is not a straight line, Is not a flat plate. Therefore, a person must manually weld. Such manual welding has a problem in that the productivity of work is low and the quality of welding is not uniform since it is greatly influenced by the skill of the worker.

In order to solve such a problem, a device such as the Korean Patent Registration No. 10-1101605 has been developed as a device for performing a quick and uniform welding operation when welding a flange to a pipe. However, There is a problem that it is difficult to apply it to welding pipes of various thicknesses.

Korean Patent No. 10-1101605

The automatic flange welding apparatus according to the present invention automatically sets the welding conditions according to the thickness of various pipes when joining piping accessories such as a flange to the end of the pipe, And the welding quality of the welded portion can be improved.

The automatic welding apparatus for a flange according to the present invention comprises a base on which a conveying rail of a predetermined length is formed; A vertical support coupled to one side of the base; A welding arm provided at an upper portion of the vertical support so as to be able to move up and down and forward / backward; A welding head provided at one end of the welding arm and provided with a pair of positioning sliders for fine adjustment of welding positions on one side and welding torches respectively coupled to the positioning sliders; A rotary roller bail installed on one side of the conveying rail so as to be capable of reciprocating and provided with a pair of rotary rollers for rotating the pipe, A pipe clamp unit installed on the other side of the upper portion of the rotary roller carriage so as to move up and down and including a clamp roller installed so as to be able to press the upper portion of the pipe; A transporting carriage installed to be reciprocated along the transporting rail to transport the pipe and having a pair of support rollers for supporting the rear of the pipe; And a control unit installed at one side of the vertical support to control the welding operation. The rotary roller braking unit and the transfer braking unit are provided with roller interval adjusting means for adjusting the interval between the rollers according to pipe diameter data So that the gap between the rotating rollers and the supporting rollers is automatically adjusted in accordance with the size of the pipe, and the welding operation is automatically performed by the welding data according to the size of the pipe and the flange.

The flange head may further include a flange head installed at one side of the feed rail to be spaced apart from the rotary roller carriage so as to provide a flange to the pipe before welding starts. A flange fixing jig for fixing the flange fixing jig, and a chuck for fixing the flange fixing jig.

Further, the flange head portion may further include a pipe entry position detecting portion for detecting a position of a pipe end portion entering along the rotating roller, wherein the pipe entry position detecting portion includes a contact or non-contact type sensor, And the pipe entry position detecting unit is installed so as to move to the outside of the pipe immediately before the flange is installed.

The roller interval adjusting sensor may further include a reference sensor provided at a position of a reference point and a plurality of spacing sensors spaced apart from each other, The rotation roller is moved to the position of the reference sensor by the roller gap adjusting means and then moved to a position where the gap sensor corresponding to the movement position according to the control signal is installed. do.

The pipe clamp part includes a clamp elevating part formed to vertically move up and down, and a clamp roller installed at one side of the clamp elevating part to directly press one side of the pipe.

The control unit includes an external command input unit for receiving the welding condition signal input to the touch panel unit or the operation switch unit, a sensor signal input unit for receiving signals from the roller interval adjusting sensor or the pipe entry position detecting unit, A comparison operation unit that compares the signal input to the external command input unit with the welding data stored in advance in the welding data storage unit and compares the signal input to the external instruction input unit with the welding data stored in the welding data storage unit, And a welding control signal output unit for outputting a signal for controlling the welding conditions.

The flange automatic welding apparatus according to the present invention automatically sets the pipe fittings such as the flange for the pipe to the end of the pipe according to the welding conditions automatically according to the thickness of various pipes so that the non- It has the effect of helping to improve the productivity and improve the welding quality.

In addition, since welding data management according to welding conditions is possible, uniform welding quality can be obtained under the same welding conditions.

1 is a perspective view of an automatic flange welding apparatus according to an embodiment of the present invention;
FIG. 2 is a front view of an automatic flange welding apparatus according to an embodiment of the present invention. FIG.
3 is an enlarged view of a welding head portion of an automatic flange welding apparatus according to an embodiment of the present invention.
Fig. 4 is a front view of Fig. 3; Fig.
5 is a block diagram conceptually showing a control unit of an automatic flange welding apparatus according to an embodiment of the present invention.
6 is a reference view showing an example in which a pipe and a flange are installed in an automatic flange welding apparatus according to an embodiment of the present invention.
7 is a reference view showing an example of an angle division for controlling rotation of a pipe in performing a welding operation of an automatic flange welding 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. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, when an element is referred to as being "comprising " another element in the description of the invention or claims, it is not to be construed as being limited to only that element, Elements may be further included.

1 to 5, an automatic flange welding apparatus according to an embodiment of the present invention includes a base 100; A vertical support 200 coupled to the base 100; A welding arm 300 installed on the vertical support 200 so as to be able to move up and down and forward and backward; A welding head portion 400 installed in the welding arm 300 and having a welding torch 420; A rotating roller pair 500 having a rotating roller 510 for rotating the pipe); A pipe clamp unit 600 installed so as to prevent the pipe from escaping by pressing the upper part of the pipe; A conveyance carriage 800 for conveying the pipe and supporting the rear of the pipe; And a control unit 900 for controlling the respective components for the welding operation.

The base 100 is provided with a conveying rail 110 having a predetermined length at one side thereof and is configured to support all the structures. In order to easily change the position according to the welding operation, a moving wheel is installed below the base 100.

The vertical support 200 is coupled to the base 100 and includes a welding arm for moving the welding arm 300 up and down and forward and backward movement of the welding arm 300 to be described later. In the embodiment of the present invention, the welding arm is formed to include the elevating means and the forward and backward driving means configured to slide along the moving rail using the general motor as the driving source. However, in order to precisely adjust the welding position, A motor or a servo motor may be used.

The welding arm 300 is installed on one side of the upper portion of the vertical support 200 so as to be able to move up and down and forward and backward reciprocatingly. Preferably, a welding arm provided on the vertical support 200 is installed on the same portion. A wire feeder for feeding the wire feeder may be installed on one side.

The welding head 400 is installed at one end of the welding arm 300 and is equipped with a welding torch 420 for performing a welding operation. At this time, a pair of position adjusting sliders 410 are installed on the welding head 400 so as to be movable up and down and left and right by an electric motor such as a servo motor so as to finely adjust the welding position, and the welding torch 420 It is preferable that one pair is coupled to the position adjusting slider 410 so that the inside and the outside of the pipe can be welded together if necessary. More preferably, the height and the angle of the welding torch 420 are adjustably adjusted so that a welding bead matching the diameter of the pipe 1 and the size of the flange 2 is formed. When the welding torch 420 is positioned within a predetermined range And a known weaving device configured to move in the lateral direction with respect to the welding direction and perform the welding.

In addition, in one embodiment of the present invention, the position adjusting slider 410 is formed in a pre-slider structure, and a welding torch 420a for performing a welding operation on the inner portion of the pipe moves to the welding operation start position by the operation of the servo motor And the welding torch 420b for performing the welding operation on the outer portion of the pipe is configured to be moved to the welding position along the slider. However, in order to more precisely adjust the movement of the welding torches 420, Each of the adjustment sliders 410 may be configured to be driven through a servo motor and other known methods for more precisely adjusting the position of the welding torch may be used.

The position adjustment slider 410 may further include a torch replacement auxiliary means such as an air cylinder for easy installation and replacement of the welding torch 420.

The rotary roller carriage 500 is installed on one side of the conveying rail 110 of the base so as to reciprocate in a predetermined section under the driving force of a servo motor or a step motor, And a pair of rotation rollers 510 for rotating the rollers. At this time, a rotating roller driving motor (not shown) for driving the rotating roller 510 is provided at a lower side of the rotating roller carriage 500, and a power transmitting means such as a chain coupled with the rotating roller driving motor is rotated 510 to drive the rotating roller 510. The rotating roller driving motor uses a general DC motor or an AC motor to rotate the rotating speed of the pipe 1 rotated through the rotating roller 510, A servo motor, a step motor, etc., which are controlled by an inverter system so as to be precisely controlled as compared with the case where the servo motor is driven by an inverter.

A roller interval adjusting unit 520 and a roller interval adjusting sensor 530 are further provided on the rotating roller carriage unit 500 for adjusting the intervals of the rotating rollers 510 according to the diameter and length of the pipe 1 .

In an embodiment of the present invention, the roller interval adjusting sensor 530 is a proximity sensor for sensing the position of an object. The roller interval adjusting sensor 530 includes a reference sensor disposed at a reference point and a plurality of spacing sensors spaced apart from each other. The rotation roller 510 is moved to the position of the reference sensor by the roller gap adjusting means 520 and then moved to the position where the gap sensor corresponding to the movement position according to the control signal is installed. If the interval width of the rotating rollers is configured to be controlled in this manner, errors caused by the size of the sensor can be prevented, especially when the interval width of the rotating rollers is to be narrowed.

At this time, the roller interval adjusting means 520 is configured to slide and reciprocate by an electric motor, and the rotating rollers 510 are spaced apart from each other according to a signal of the roller interval adjusting sensor 530, A worm gear, a lead screw, a rack, and a pinion which are formed to be reciprocally driven, but it is preferable that the rotation roller 510 is formed in a highly accurate moving manner.

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The pipe clamp unit 600 is installed on the other side of the upper portion of the rotary roller carriage 500 so as to press the upper side of the pipe 1 to prevent the pipe from being separated. For this purpose, The clamp part 600 includes a clamp elevating part 610 formed to be lifted up and down in the manner of a worm gear, a lead screw, a rack and a pinion, and a clamping roller 610 provided on one side of the clamp elevating part 610, (620). At this time, a slip ring mounting portion capable of mounting a slip ring for welding connection is formed in the inside of the clamp roller 620. The slip ring mounted on the slip ring mounting portion may be formed of various materials, It is preferable to include a carbon brush to stably flow the carbon brush.

The pipe clamp unit 600 may further include a clamp ascending / descending sensing unit for preventing the clamp clamp ascending / descending unit 610 from being excessively lowered during the pipe clamping and limiting the ascending range of the clamp ascending / descending unit 610 when the clamp is released The clamp ascending / descending sensing unit includes a first stage descent sensing unit including a limit switch or a proximity sensor for sensing a position at which the clamp ascending / descending unit 610 is to be lowered to sense the thickness of the pipe during pipe clamping, A second step down sensing part including a limit switch for preventing malfunction of the clamp part and a limit sensing part including a limit switch for detecting a position where the clamp up / .

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The flange head portion 700 is installed on the base 100 so as to be spaced apart from the rotary roller carriage 500 on one side of the transfer rail to weld the flange 2 to the end of the pipe 1 In order to allow installation to the position. In an embodiment of the present invention, the flange head 700 moves a predetermined distance toward the rotary roller carriage 500 so that the flange can be installed at one end of the pipe before the welding operation is performed, So as not to interfere with the movement of the welding torch 420 during the welding operation, but can be configured in other ways. The flange head 700 is provided with a flange fixing jig for temporarily fixing the flange to the pipe before the flange is fixed to the pipe, a manual or automatic chuck for fixing the flange fixing jig, A flange mounting cylinder for mounting the flange fixing jig may be further included and it is more preferable to adjust the height of the position where the flange fixing jig is installed according to the type of the pipe and the flange.

The flange head portion 700 may further include a pipe entry position detecting portion 710 for detecting the position of the pipe end portion that enters along the rotary roller 510. The pipe entry position detection unit 710 may include a contact type or a non-contact type sensor. For the purpose of more accurate measurement, the pipe entry position detection unit 710 may include a plurality of sensors to detect a distance between the pipe and the pipe through a noncontact sensor such as an ultrasonic sensor, And then detects the end position of the pipe by using the contact sensor.

At this time, the pipe entry position detecting unit 710 is installed to detect the position of the pipe being introduced and then move in a direction outside the pipe immediately before the flange is installed so as not to interfere with the flange installation and welding work. The pipe entry position detection unit 710 is installed on one side of the cylinder 701 provided below the flange head unit 700, preferably on the cylinder rod of the cylinder, and is configured to reciprocate up and down.

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The transfer bogie unit 800 is installed to be reciprocated a predetermined distance along the transfer rail 110 formed on the base 100 and is adapted to transfer the pipe 1 to the welding position. The transfer bogie unit 800 supports the rear of the pipe 1 A pair of support rollers 810 provided so as to be rotatable. At this time, the support roller 810 may be freely rotated according to the driving of the rotation roller 510, but a support roller driving motor for driving the support roller 810 may be further installed on one side of the conveyance carriage unit 800 And the support roller driving motor may be a servomotor such as a rotary roller drive motor, which can control the rotation speed and the rotation angle of the support roller and can operate in conjunction with the operation of the rotary roller drive motor, Lt; / RTI >

A roller interval adjusting unit 820 may be further provided in the conveyance carriage unit 800 to adjust the interval width of the support rollers 810 according to the thickness of the pipe coupled with the flange. A roller interval adjusting sensor 830 for controlling the operation of the roller interval adjusting unit 820 installed in the roller interval adjusting sensor 830 is further provided so that the roller interval adjusting unit 820 is driven by receiving a signal from the roller interval adjusting sensor 830, And may be configured to be driven by being interlocked with a roller interval adjusting sensor 530 and a roller interval adjusting unit 520 provided on the roller bogie unit 500.

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The controller 900 is installed on one side of the upper portion of the vertical support 200 to control the welding operation. In an embodiment of the present invention, And a manipulation switch unit 920 for inputting welding conditions through a switch operation such as a toggle switch, a volume switch, or the like, so that the pipe diameter and the flange size The welding current, the welding voltage, the welding speed, and so on.

The control unit 900 includes an external command input unit 930 for receiving a welding condition signal input to the touch panel unit 910 or the operation switch unit 920, a roller interval adjusting sensor 530, 830, a pipe entry position detecting unit 710 A welding data storage unit 950 for storing welding data such as a welding current, a welding voltage, and a welding speed according to a pipe diameter and a flange size, a sensor signal input unit 940 for receiving a signal from a sensor included in the welding data storage unit 940, A comparison operation unit 960 for comparing the signal input to the external command input unit 930 and the welding data stored in the welding data storage unit 950 and calculating the welding voltage and the welding voltage according to the calculation result of the comparison operation unit 960, And a welding control signal output unit 970 for outputting a signal for controlling the welding current, the rotating speed of the pipe, and the like. At this time, it is possible to store the welding data or recall the stored welding data through the configuration of the welding data storage unit 950, so that the uniform welding quality can be obtained regardless of the skill of the operator.

The control unit 900 may further include a production data storage unit 980 for managing the welding production data including the production quantity, the operation time, the actual welding time, etc. according to the material for a predetermined period of time, A production data output unit 990 for outputting the data stored in the production data storage unit 980 may be further provided. At this time, the production data output unit 990 includes a wired or wireless communication module, and not only a screen output method through the touch panel unit 910, but also a method of transmitting and outputting data through data communication with an external device such as a portable terminal . ≪ / RTI >

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The operation and operation of the automatic flange welding apparatus according to one embodiment of the present invention will be summarized as follows.

First, data on the welding operation to be performed by the operator is input to the control unit 900. When the pipe 1 is supplied to the rotary roller bogie unit 500 and the transfer bogie unit 800, The clamp lift 610 is lowered to match the length of the pipe after the clamp roller 620 presses one side of the upper portion of the pipe so as to match the length of the pipe and the feed carriage 800 and the feed roller 500 110 to advance to the side of the welding head 400 and the flange head 700 in the waiting position.

While the end of the pipe is approaching the flange head portion 700, the position of the pipe end is detected through the sensor while the pipe entry position detection portion 710 is raised. When the pipe end position is detected, the pipe entry position detection portion 710 Is lowered by the cylinder rod, and the pipes are moved toward the flange by a predetermined distance in accordance with the welding data and are coupled to each other.

When the flange is installed on the pipe, the welding torch 420, which is moved up and down and backward / forward according to the welding position, is positioned by the position adjusting slider at the welding position inside and outside the pipe So that the welding operation is performed according to the welding conditions and data set in the control unit 900.

In an embodiment of the present invention, the welding torch 420b for performing the welding operation on the outer portion of the pipe is lowered first to perform the available welding to temporarily fix the welding portion before the full welding operation is started, The head part 700 is separated from the flange by a predetermined distance and the welding torch 420a for performing the welding operation is lowered to the inner welding working position so that the welding is progressed. Welding can be carried out separately or simultaneously.

In this case, since the temperature of the base material gradually increases over time during the welding operation, the automatic flange welding apparatus according to the embodiment of the present invention is arranged such that the cross- To F and outputs a signal for controlling the welding conditions such as welding voltage, welding current, and rotation speed of the pipe according to the welding data according to the size of the pipe. However, So that the manner of controlling the welding conditions can be changed.

When welding of the pipe and the flange is completed through the above process, the clamp elevating portion 610 is lifted to release the pipe, and the rotating roller carriage 500 and the conveyance carriage 800 are moved back a predetermined distance The work is terminated.

According to the above-described configuration, the automatic welding apparatus of the present invention automatically sets the welding conditions according to various thicknesses of the pipe when joining the flanges to the pipe, so that the flange welding operation can be automatically performed It is advantageous to improve welding productivity and improve welding quality, and it is possible to obtain uniform welding quality under the same welding condition because welding data management according to welding conditions is possible.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, The present invention is not limited to the embodiments and the accompanying drawings.

1: Pipe 2: Flange
100: Base 110: Feed rail
200: vertical support 300: welding arm
400: welding head part 410: position adjusting slider
420: welding torch 500: rotating roller carriage
510: rotating rollers 520, 820: roller interval adjusting means
530, 830: Roller interval adjusting sensor 600: Pipe clamp part
610: Clamp lifter 620: Clamp roller
700: flange head part 710: pipe entry position detecting part
800: Feed conveying portion 810: Support roller
900: control unit 910: touch panel unit
920: Operation switch section 930: External command input section
940: sensor signal input unit 950: welding data storage unit
960: comparison operation unit 970: welding control signal output unit
980: Production data storage unit 990: Production data output unit

Claims (6)

A base on which a conveying rail of a predetermined length is formed;
A vertical support coupled to one side of the base;
A welding arm provided at an upper portion of the vertical support so as to be able to move up and down and forward / backward;
A welding head provided at one end of the welding arm and provided with a pair of positioning sliders for fine adjustment of welding positions on one side and welding torches respectively coupled to the positioning sliders;
A rotary roller bail installed on one side of the conveying rail so as to be capable of reciprocating and provided with a pair of rotary rollers for rotating the pipe,
A pipe clamp unit installed on the other side of the upper portion of the rotary roller carriage so as to move up and down and including a clamp roller installed so as to be able to press the upper portion of the pipe;
A conveyance truck mounted reciprocatingly along the conveyance rail for conveying the pipe and provided with a pair of support rollers for supporting the rear of the pipe;
A flange head part installed on one side of the feed rail to be spaced apart from the rotary roller carriage part and to install a flange on a pipe before starting welding; And a control unit installed at one side of the vertical support to control a welding operation,
The flange head portion includes a flange fixing jig for temporarily fixing the flange before installing the flange on the pipe, and a chuck for fixing the flange fixing jig,
The rotary roller carriage and the conveyance carriage are provided with roller interval adjusting means for adjusting the interval between the rollers according to the pipe diameter data so that the interval between the rotary roller and the support rollers is automatically adjusted And the welding operation is automatically performed by the welding data according to the size of the pipe and the flange,
Wherein the flange head further comprises a pipe entry position detecting unit for detecting a position of a pipe end that enters along the rotating roller,
Wherein the pipe entry position detecting unit includes a contact or non-contact type sensor, and the pipe entry position detecting unit is installed to move to the outside of the pipe immediately before the flange is installed. delete delete The method according to claim 1,
A roller interval adjusting sensor for adjusting the interval of the rotating rollers is further provided on the rotating roller bail portion,
Wherein the roller interval adjusting sensor is composed of a reference sensor provided at a position of a reference point and a plurality of spacing sensors spaced apart from each other, Is moved to a position where the gap sensor corresponding to the movement position according to the control signal is installed. delete The method according to claim 1,
The control unit includes an external command input unit receiving a welding condition signal input to the touch panel unit or the operation switch unit, a sensor signal input unit receiving a signal from the roller interval adjusting sensor or the pipe entry position detecting unit, A comparison operation unit that compares and compares the signal input to the external command input unit and the welding data stored in advance in the welding data storage unit and calculates a welding condition according to an operation result value of the comparison operation unit; And a welding control signal output unit for outputting a signal for controlling welding of the flange.
KR1020150127017A 2015-09-08 2015-09-08 An automatic welding machine for a pipe flange KR101610636B1 (en)

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KR1020150127017A KR101610636B1 (en) 2015-09-08 2015-09-08 An automatic welding machine for a pipe flange

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