KR101250035B1 - Welding apparatus which can produce the faying of base metal and provide the weld line tracing at the same time - Google Patents

Abstract

PURPOSE: A welding device performing the pressurization of the parent material simultaneously with weld line tracking is provided to precisely and concurrently track the parent material with a shape changing forwards and backwards. CONSTITUTION: A welding device(10) performing the pressurization of the parent material simultaneously with weld line tracking comprises a base unit(1), a pressing unit(2), a drive unit(3), and a welding unit(4). The pressing unit is equipped with a protrusion type stopper to perform the forward and backward guidance for the surface of the end parts of welded objects. The protrusion type stopper is contacted to the end parts where the welded objects are mutually contacted to be separated from the welding unit. The protrusion type stopper performs the welded object to be contacted forwards and backwards and to be guided forwards and backwards.

Description

Welding Apparatus for Simultaneous Pressurization of Substrate and Welding Line Tracking {WELDING APPARATUS WHICH CAN PRODUCE THE FAYING OF BASE METAL AND PROVIDE THE WELD LINE TRACING AT THE SAME TIME}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding apparatus, and more particularly, to a welding apparatus for welding an end portion at which an overlapping plate-shaped welding object abuts by a welding torch.

Industrially, the method of welding the ends by joining metal plates to each other according to the use is widely used.

A representative type of the metal plates that are bonded to each other is a plate heat exchanger.

Korean Patent Registration No. 10-0911158 discloses a plate heat exchanger in which heat transfer plates are stacked and end portions are joined by seam welding, CO 2 welding, or TIG welding.

The plate heat exchanger is manufactured by stacking a plurality of overlapping heat exchanger boards after stacking up and down corresponding heat exchanger boards. The ends of the overlapped heat exchanger boards are welded by seam welding and manual CO2 welding or TIG welding.

However, the core welding can be superimposed on only two sheets, but when the welding objects are stacked, the base material and the welding electrode rollers interfere with each other in the up and down direction of the welding electrode roller due to the laminated structure of the base material. In addition, CO2 welding and TIG welding can only be done by manual work, so the welding time is long and the welding bead is not uniform.

An automatic welding device capable of continuously welding and following a welding line is disclosed in Korean Patent No. 10-0663389.

Korean Patent No. 10-0663389 discloses an automatic welding apparatus using an infrared sensor that can perform welding while easily tracking a welding line of a metal plate in a non-contact manner.

However, the automatic welding device disclosed in the above-mentioned prior document is suitable for welding the ends of the metal plates leading to each other but there is no description of a technique for welding the ends of the overlapping metal plates. If the base materials are overlapped with each other and the welding of the protruding end faces is performed with the automatic device, At the same time, the conditions of the base metal deformed by the bending and welding heat in the front and back directions must be simultaneously sensed so as to be accurately transmitted to the center of the welding torch tip. Weldability of can be achieved.

Therefore, there is a need for a welding device for welding the ends of metal sheets superimposed on one another, such as a plate heat exchanger.

Republic of Korea Patent No. 10-0911158 (2009.08.06.) Republic of Korea Patent No. 10-0663389 (2007.01.02.)

The present invention has been made in view of the above problems, and provides a welding device capable of welding at an end where the overlapping plate-shaped welding objects contact each other and having excellent welding quality.

Furthermore, further problems to be solved by the present invention are described through the present specification.

Welding apparatus according to an embodiment of the present invention, the base unit that is movable and the plate-shaped welding objects connected to the base unit and overlapping each other in the overlapping direction by pressing the end of the welding object to be in close contact with each other and at the same time A pressurizing unit which performs the front and rear direction guide of the end surface of the welding object, a drive unit connected to the pressurizing unit and operated by the pressurizing unit to pressurize the welding object and the base unit connected to the base unit and in close contact with the pressurizing unit And a welding unit for welding the end portion of the welding object by a welding torch.

In addition, the pressing unit is provided with a protruding stopper for carrying out the front and rear direction guide of the end of the welding object, the protruding stopper is in close contact with the end of the welding object is in contact with the welding unit and the end of the welding object Maintaining a constant distance and the front and rear direction close contact with the end surface of the object to be welded can be performed simultaneously.

On the other hand, a guide auxiliary roller is provided at the end of the welding device and in close contact with the end of the welding object to be in contact with each other to balance the left and right of the welding unit and prevent inclination.

The pressurizing unit may include a rotating first pressurizing roller and a second pressurizing roller disposed to face the first pressurizing roller and rotating, and pressurizing the welding object with the first pressurizing roller and the second pressurizing roller. can do.

In addition, the first pressurized roller and the second pressurized roller are disc-shaped and are disposed to face each other, including diameters, and protrude in a direction facing the center of any one of the first pressurized roller or the second pressurized roller. The stopper is formed and the other of the first pressurized roller or the second pressurized roller, is formed to correspond to the protruding stopper is formed a recessed receiving portion into which the protruding stopper is inserted, the protruding stopper and the welding object The ends of can be in close contact.

In addition, the pressurizing unit may be provided with at least one each to the left and right of the welding unit.

In addition, any one of the first pressure roller or the second pressure roller is formed with a pin portion, and the other one is formed with a receiving hole at a position corresponding to the pin portion, any one of the first pressure roller or the second pressure roller. A rotating driving unit for rotating one may be provided, and the first pressing roller and the second pressing roller may be rotated by the rotating driving unit in a state in which the pin is coupled to the receiving hole of the pin.

In addition, the drive unit is provided with at least one hinge coupling portion attached to each of the base unit and the rotating plate, the rotating plate portion axially coupled to the rotation center of the hinge coupling portion, and each of the base unit and the rotating plate portion A rotation driving unit coupled to rotate the rotation plate, wherein the rotation plate portion and the base unit are respectively coupled to the first pressure roller and the second pressure roller, and the rotation plate rotates with respect to the base unit. The first press roller and the second press roller may press the welding object.

The first pressing roller and the second pressing roller may include a rotating plate portion and a shaft portion extending from the center of the rotating plate portion, respectively, and the rotating plate and the base unit may include the first pressing roller and the second pressing roller. A receiving casing for accommodating each shaft portion of the pressure roller is coupled, and each shaft portion may be coupled to the receiving casing.

In addition, an inner receiving casing integrally coupled with the shaft portion may be interposed between at least one of the receiving casings and the shaft portion, and the inner receiving casing may be screwed to the receiving casing to adjust the position of the shaft portion. have.

In addition, a thrust member may be interposed between the rotation plate and the accommodation casing, and a shaft rotation member may be interposed and coupled between the shaft portion and the inner accommodation casing.

In addition, the rotation drive unit is made of a bidirectional cylinder, the body of the cylinder is fixed to the rotation plate portion and one end of the cylinder rod is rotatably coupled to the base unit, the rotation plate by the movement of the cylinder rod It can be made to be rotatable with respect to the base unit.

In addition, the driving unit, a limiting member for limiting the forward movement of the other end of the cylinder rod may be coupled.

In addition, the restricting member is formed with a groove into which the other end of the cylinder rod is inserted, and an accommodating casing for limiting the distance that the cylinder rod can move from the bottom of the groove and a supporting member for fixing the accommodating casing to the body of the cylinder. And an adjusting member formed to protrude from the bottom of the groove of the accommodation casing to adjust a distance at which the cylinder rod is movable.

In addition, the adjusting member may be a screw member installed to penetrate the bottom surface of the groove of the receiving casing and adjust the movable distance of the rod by tightening and loosening.

The welding unit may further include: a welding torch unit for welding an end portion at which a welding object comes into contact; an angle adjusting unit for connecting the welding torch unit and adjusting an angle of the welding torch unit; Position adjusting portion for adjusting the position of the tooth may be included.

In addition, the angle adjustment portion, the welding torch is provided with a coupling chuck coupled to the vertical angle adjusting portion and the vertical angle adjusting portion for rotating the coupling chuck in the vertical direction and the vertical angle adjusting portion in the left and right direction Rotating left and right angle control may be included.

In addition, the position adjusting unit, connected to the coupling chuck and the vertical position adjusting unit for moving the coupling chuck in the vertical direction and the vertical position adjusting unit and the front and rear position adjusting unit for moving the vertical position adjusting unit in the front and rear direction May be included.

In addition, the welding apparatus may further include a suspension unit connected to the base unit and applying a force to the base unit in a direction opposite to the direction of gravity to cancel the influence of gravity applied to the base unit.

In addition, the suspension unit may further include a cylinder connected to the base unit to press the base unit in a direction opposite to the gravity direction.

In addition, the cylinder is a bidirectional cylinder, one end of the rod of the cylinder is coupled to the base unit and the other end may be connected to the support member for supporting the flow of the cylinder rod.

The support member may include a cap part in which a groove into which the other end of the cylinder is inserted, a fixing member for fixing the cap part to the body of the cylinder, and a cap part inserted into the cap part to elastically support the other end of the cylinder. An elastic member may be included.

In addition, the suspension unit may further include a locking device for preventing the flow of the pressing unit by integrating the base unit and the suspension unit.

The welding device may further include a positioning unit connected to the base unit to move the pressing unit to a position for closely contacting the welding object and to simultaneously bring the protruding stopper into close contact with an end of the welding object. Can be.

In addition, the positioning unit includes a first cylinder and a second cylinder coupled to each other, the position for the pressing unit to contact the welding object by the operation of any one of the first cylinder or the second cylinder. And the protruding stopper is brought into close contact with the end where the welding object comes into contact by operation of the other of the first cylinder or the second cylinder.

In addition, the positioning unit may be further provided with a level gauge for displaying a horizontal state.

In addition, the welding apparatus may further include a grinding unit connected to the base unit and mapping an end portion to be welded before welding is performed by the welding unit.

In addition, the grinding unit, a grinder portion for finishing the end, an up and down movement portion connected to the grinder portion and reciprocating the grinder portion up and down, an angle adjusting portion connected to the vertical movement portion and adjusting the angle of the grinder portion and the It may be included in the front and rear movement unit connected to the vertical movement unit to move the vertical movement unit to close or space the grinder portion to the end.

In addition, the grinder portion is provided with a finishing member in contact with the end, the finishing member may be any one of a disk shape, a cone shape or a cylindrical shape.

In addition, the vertical drive unit transmits the linear power to any one of the structure to achieve the reciprocating motion of the screw and nut by the reciprocating motion by the reciprocating motion by the pneumatic cylinder or the crank operation by the rotational movement or the left and right repeated rotation by the power. It can be made to.

The welding apparatus may further include a monitoring unit configured to monitor a situation in which the end portion of the welding object is ground and a welding state, and the monitoring unit may include a first camera that monitors a mapping performance of the grinding unit. And a second camera unit for monitoring a welding performance state of the welding unit.

The monitoring unit may further include an electric control unit capable of remotely driving the welding unit while monitoring through the first camera unit and the second camera unit.

In addition, the welding device, the welding torch is provided with an electrode rod for welding the tag, the measuring unit for measuring in real time by monitoring the voltage applied to the electrode and the front and rear position control unit is formed to generate a driving force When the voltage value of the power transmission part and the measurement part that is connected to the motor part, the encoder part attached to the motor part, and the motor part to convert the rotational motion of the motor part into the linear motion of the electrode is different from the set voltage value An auto-correction apparatus for a TIG welding electrode including a control controller for correcting the position of the electrode to match the set voltage value by driving the motor unit may be further provided.

In addition, the welding apparatus according to an embodiment of the present invention, the welding unit for welding the base unit which is movable, and the end portion which is connected to the base unit and abutted with the overlapping plate-shaped welding object by a welding torch and the A pressurization unit is connected to the base unit and presses the welding object in the superimposed direction so that the end portions are brought into close contact with each other. The pressurizing unit includes a first drive configured to be rotatable and pressurize the welding object in the vertical direction, respectively. And a guide part formed on the roller part, the second driving roller part, the first driving roller part, and the second driving roller part, and closely attached to an end portion at which the welding object is in contact with the welding line.

In addition, the welding apparatus according to an embodiment of the present invention, a welding unit for welding the base unit which is movable, the end portion which is connected to the base unit and the mutually overlapping plate-shaped welding object abuts by a welding torch, A pressurizing unit connected to the base unit and pressurizing the welding object in a superimposed direction to closely adhere the ends, a driving unit connected to the pressurizing unit and operating the pressurizing unit to pressurize the welding object and during welding One or more pressurized auxiliary roller units are further provided to closely contact the welding object in the up and down direction, and the pressurization auxiliary roller unit is further in close contact with the welding object in the vertical direction during the welding process after the pressing unit is in close contact with the end of the welding object. At least one pressurized auxiliary roller unit, Is ulreo parts respectively connected to the control unit and the auxiliary pressure roller unit and the control unit to move back and forth in the vertical direction by each slide is included added to achieve the transfer roller forward and backward portion of the pressing auxiliary according to the adjustment of said adjustment.

The control unit may be any one of a screw member coupled to the slide unit to operate the slide unit in a vertical direction or a cylinder coupled to the slide unit to operate the slide unit in a vertical direction.

The welding apparatus further includes a supporting apparatus connected to the welding apparatus and allowing the welding apparatus to be movable, wherein the supporting apparatus is any one of a balancing apparatus or a hoist crane apparatus, and the hoist crane apparatus is the balancing apparatus. Connected to the device and can be made in either a way with an automatic speed control device or with a manual operation or with a roller movable support.

The welding apparatus further includes a moving unit connected to the base unit and having a driving unit capable of three-dimensional movement of the base unit and a control unit for controlling and manipulating the driving unit by synchronously interfacing with the driving unit. The driving unit may be any one of a device having an XYZ operation function by an articulated robot or a CNC.

In addition, the welding device is connected to a linear guide rail for forming a linear movement structure, a movement slider means for traveling along the linear guide rail and fixing the articulated robot base, and connected to the movement slider means. A slide unit for moving the articulated robot may be further included, including a driving power transmission device for transmitting.

In addition, the welding device is provided with at least one slide block facing up and down to allow the left and right flow movement of the welding unit, the slide block is connected to the pressing unit and the welding unit, connected to the slide block And a slide rail portion for supporting the slide block to be slidable, and further including left and right flow units having flow restriction portions at both ends of the slide rail portion, wherein the left and right flow units are connected to the base unit and are connected to the base unit. A locking device may be provided to integrate the unit and the left and right flow units to prevent the flow of the welding unit.

According to the welding apparatus according to an embodiment of the present invention, it is possible to weld the end portion of the overlapping plate-shaped welding objects to contact each other and excellent welding quality.

Further effects of the present invention are described throughout this specification.

1 is a perspective view showing a welding apparatus according to a first embodiment of the present invention.
2 is a perspective view of the pressing unit of FIG. 1;
3 is an exploded perspective view of the pressurizing unit of FIG. 2;
4 is a cross-sectional view in the AA direction of FIG. 2.
5 is a perspective view of the drive unit of FIG. 1.
6 and 7 are operational views of the drive unit of FIG. 5.
8 is an exploded perspective view of the drive unit of FIG. 5;
9 is a cross-sectional view taken along the BB direction in FIG. 5.
10 is a perspective view of the welding unit of FIG. 1.
11 is an exploded perspective view of the welding unit of FIG. 10;
12 to 15 is a conceptual diagram showing a state of use of the welding apparatus according to a first embodiment of the present invention.
16 is a perspective view showing a welding apparatus according to a second embodiment of the present invention.
17 and 18 are perspective views illustrating the suspension unit of FIG. 16.
19 is an exploded perspective view of the suspension unit of FIGS. 17 and 18.
20 and 21 are operational views of the suspension unit of FIGS. 17 and 18.
22 is a cross-sectional view taken along the direction CC of FIG. 17.
23 is a perspective view of the positioning unit of FIG. 16;
24 is an exploded perspective view of the positioning unit of FIG. 23.
25 to 27 are operational views of the positioning unit of FIG.
28 is a perspective view of a welding apparatus according to a third embodiment of the present invention.
FIG. 29 is a perspective view of the grinding unit of FIG. 28; FIG.
30 is an exploded perspective view of the grinding unit of FIG. 29;
31 and 32 are conceptual views showing a state of use of the welding apparatus according to a third embodiment of the present invention.
33 is a view showing another form of the pressurizing unit and the driving unit of the welding apparatus according to the embodiment of the present invention.
34 is a perspective view of a welding apparatus according to a fourth embodiment of the present invention.
35 is a conceptual diagram showing a state of use of the welding apparatus according to a fourth embodiment of the present invention.
36 is a cross-sectional view of the DD direction of FIG. 34;
37 is a perspective view showing another embodiment of the pressure assist roller unit according to the embodiment of the present invention.
38 is a perspective view of a left and right flow unit according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It will be possible. As the inventive concept allows for various changes and numerous modifications, particular embodiments will be illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Hereinafter, a welding apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the present specification, the same reference numerals are used to designate similar components in different embodiments, and the description thereof is replaced with the first description.

1 is a perspective view showing a welding apparatus according to a first embodiment of the present invention.

The welding apparatus 10 according to the first embodiment of the present invention includes a base unit 1, a pressurizing unit 2, a drive unit 3, and a welding unit 4.

In the first embodiment, the pressure roller which presses the substrate is pressed against the substrate by the operator, the articulated robot or the apparatus having the XYZ operation function by the CNC, does not move the welding apparatus 10, but presses the substrate. By using the reaction generated by the rotational movement, the welding device moves by itself and the base metal can be pressed and welded at the same time. When the welding device 10 moves by itself, the welding device 10 may be supported by the spring balancing 20 or the air balancing.

When the welding device 10 finishes the welding operation, the worker may transfer from the end point to the start point of performing the next welding operation.

That is, the welding device 10 performs the pressurization and welding work of the base material while moving by itself, but when the welding work start point and the end point are stacked and have one or more sections, such as a continuous case, the welding device between the sections The transfer operation may be performed by a manpower. Therefore, in the first embodiment, the welding device 10 performs a welding operation semi-automatically.

In addition, the vertical direction below means the direction up and down in the gravitational field, and the front and rear direction means a direction closer to or away from the base material.

1, the welding device 10, the base unit 1 is provided with a welding unit (4) at the end having a welding torch to perform a welding operation at the end, overlapping plate-like Vertical bending of the end portion 53 to be welded by closely contacting the end portions 53 (see Fig. 14) to which the objects to be welded 51, 52 (see Fig. 14) face each other and at the same time being in close contact with the end portion 53 to be welded, and The pressurizing unit 2 and the pressurizing unit which transfer the conditions of the base material deformed due to the shape of the protrusion and the convex portion of the front and rear direction and the welding heat to the welding unit 4 and the pressurizing unit in the up and down direction to achieve pressurization and release operation. It includes a drive unit (3).

On the other hand, the pressurizing unit 2 is provided with a protruding stopper 211d that closely contacts the end 53 to be welded to limit the insertion distance of the end 53 to be welded (see FIG. 4).

Accordingly, the base unit is made to be moved during welding by a device having an XYZ operation function by an operator, an articulated robot or a CNC, and the welding device 10 moves when the base unit 1 moves. Welding can be performed.

The welding unit 4 is provided at the end of the base unit 1 to weld the end 53 to which the welding objects 51 and 52 in the form of overlapping plates abut by welding torch. Thereby, the welding torch of the said welding unit 4 needs to maintain the suitable close state and position for melting and welding the edge part 53 of the said welding object. In other words, when welding is performed, the welding unit 4 starts to achieve the welding condition and performs welding while maintaining the welding condition even when moving, and the welding condition is maintained even when starting to move to the next section after the completion of one welding section. It is necessary to be provided with a device to enable it.

Accordingly, the welding unit presses the end portions 53 of the welding object to each other in order to maintain an appropriate contact state and position for melting and welding the end 53 of the welding object, and at the same time, the vertical direction of the end 53 to be welded. It is to be provided with a pressurizing unit 2 which precisely tracks the shape of the bent and the front and rear protrusions and the convex portions and immediately transfers the movements changing in four directions to the central portion of the torch portion of the welding unit.

Thus, a drive unit 3 is provided which operates the pressurizing unit 2 so that the pressurizing unit 2 makes an operation to pressurize and release the pressurization with respect to the end portion 53 to be welded. The drive unit 3 is provided in the base unit 1 and is connected to the pressurizing unit 2 to form an up and down operating structure for press-contacting the end portion 53 to be welded.

Furthermore, since the welding device moves by itself using the reaction generated by the pressing unit 2 pressing and adhering the end portion 63 to be welded in the vertical direction in the up and down direction, the welding unit moves by itself. Due to the up and down bending of the end 53 and the shape of the front and rear protrusions, the convexities and the heat of the welding, a natural reaction is generated to follow the conditions of the deformed base material as it is. It is provided with devices to make it possible. Accordingly, the pressing unit 2 can precisely follow the end 63 to be welded and at the same time precisely, and the pressing unit 2 always performs the functions of the pressing close and the guide at the same time.

The pressurizing unit 2 precisely tracks the conditions of the base material deformed due to the shape and the heat of the up and down bending of the end portion 53 to be welded and the front and rear protrusions and convexities, and the welding heat, and accurately tracks the movements changing in four directions. Bars having a function of a guide for immediately transferring to the end portion of the welding torch, the pressurizing unit 2 has a protruding stopper 211d for limiting the distance that the pressurizing unit is inserted into the end portion 53 of the welding base material. Is provided.

Accordingly, the movement of the base unit 1 is accompanied by the movement of the welding unit 4, the pressurizing unit 2, the drive unit 3, and the pressurizing unit that moves after pressing close contact with the end to be welded in the vertical direction (2) and the up and down bending and the front and rear direction projections of the end portion 53 to be welded by the protruding stopper 211d which is provided in the pressing unit 2 and moves in close contact with the end portion to be welded in the front-back direction. Guided according to the shape changing in the four directions of the convex portion to accurately track the conditions of the base material, and to achieve the operation of following the up and down bending of the end portion 53 to be welded and the movement that changes in the four directions of the convex convex portion Can be.

Hereinafter, the pressurizing unit 2 of the welding apparatus 10 according to the first embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a perspective view of the pressing unit of FIG. 1, FIG. 3 is an exploded perspective view of the pressing unit of FIG. 2, and FIG. 4 is a cross-sectional view of the pressing unit of FIG.

The pressurizing unit 2 includes a first pressurizing roller part 21 and a second pressurizing roller part 22, and the second pressurizing roller part 22 includes a rotating plate part 221a and the rotating plate part 221a. A shaft portion 221b extending downward from the center of the center is provided and the shaft portion 221b is coupled to the end of the base unit 1 so as to be rotatable.

The first pressurizing roller portion 21 is directly installed above the base material pressing contact surface 229 of the rotating plate portion 221a, so that the base pressurizing contact surface 229 is the first pressurizing roller portion 21. And a shaft part 211b extending upward from the center of the rotating plate part 211a to form a structure facing each other and the base material pressing contact surface 219 of the rotating plate part 211a. It is rotatably coupled to the end of the rotating plate portion 31 to be described later.

That is, the rotating plate portions 211a and 221a of the first pressing roller 211 and the second pressing roller 221 form a disc shape and the base material pressing contact surfaces 219 and 229 of the rotating plate portions 211a and 221a. ) Is configured to face each other to form a structure in which the end portion 53, in which the welding objects 51 and 52 abut, is inserted between the base material pressing contact surfaces 219 and 229.

A protruding stopper 211d may be formed by forming a cylindrical shape in a direction facing from the center of any one of the rotating plate parts 211a and 221a of the first pressing roller 211 and the second pressing roller 221. have.

 Accordingly, the base material pressing contact surfaces 219 and 229 of the rotating plate parts 211 a and 221 a press the end 53 to which the welding objects 51 and 52 abut in the up / down direction and protrude from the center portion. Protruding portion of the shape is made to be in close contact with the end of the welding object in the front / rear direction, so that the pressing and the guide of the end surface of the welding object by the pressing roller (211,221) can be performed at the same time.

That is, the pressing unit 2 in a state in which the base material pressing contact surfaces 219 and 229 of the rotating plate parts 211 a and 221 a press the end 53 to which the welding targets 51 and 52 abut in the up / down direction. ) Rotates the base unit (1) is accompanied by the movement of the welding unit (4), the pressurizing unit (2), the drive unit (3) by the pressurizing unit (2) during the rotational movement Since the press-contact state of the base material is maintained as it is, if there is an up-down bending of the end portion 53 to be welded, the press-contact state corresponding thereto is maintained even during the movement, so that the base unit 1 is moved up and down the end 53. It is moved while being guided along the directional bend.

In addition, when the base material pressing contact surfaces 219 and 229 of the rotating plate parts 211a and 221a press and rotate the end portion 53 in contact with the welding objects 51 and 52 in the up / down direction, the base unit is rotated. (1) is moved to accompany the movement of the welding unit (4), the pressurizing unit (2), the drive unit (3) and the side surface of the protruding stopper (211d) during the rotational movement of the pressurizing unit (2d) It is maintained in close contact while rotating in close and forward direction to be guided according to the changing shape of the front and rear protrusions in the front and rear direction can be accurately tracked at the same time the shape changing in the front and rear direction of the base material.

Accordingly, the rotating plate portions 211a and 221a press and hold the end to be welded in the vertical direction, and rotate by interlocking with the up and down bending of the end portion 53 to be welded and the shape changing in four directions of the protruding convex portions in the front and rear directions. And the guide by moving closely and the guide by the pressure close contact and the guide by the protruding stopper (211d) is made at the same time.

In addition, a recessed accommodating part 221d having a recessed shape in which the protruding stopper 211d may be accommodated may be formed at another one of the rotating plate parts 211a and 221a.

The recess accommodating portion 221d is in close contact with the base material pressing contact surfaces 219 and 229 of the rotating plate portions 211a and 221a by pressing the end portions 53 on which the welding objects 51 and 52 abut in the up / down direction. The side of the protruding stopper 221d is stably in close contact with the end portion 53.

During the rotational movement of the pressurizing unit, it is possible to pressurize and guide the welding base material more precisely so that the upper and lower pressurization points of the end portions 53 to which the welding objects 51 and 52 are in contact with each other are maintained to coincide with each other. Since the first pressure roller 211 and the second pressure roller 221 are preferably rotated at the same speed, the base material is pressed and moved in close contact.

Therefore, the rotary driving unit is provided differently in the first pressure roller 211 and the second pressure roller 221, respectively, so as not to perform a matching operation so that the rotational speed is synchronized, the first pressure roller 211 and the second The pressure roller 221 is preferably to achieve a structure that can be rotated in conjunction with each other to transmit a rotating power to any one to achieve a structure to rotate in conjunction with the other.

Accordingly, in order to form a structure in which the first pressure roller 211 and the second pressure roller 221 can rotate in conjunction with each other through one or more pin members, one or more pin member coupling screws may be provided on any one of the pressure rollers. A pin portion 221c including a hole is formed, and the other is formed an accommodating hole portion 211c having an accommodating hole for accommodating the one or more pin members, and a thread is formed at one end thereof to the pin member coupling screw hole. It is fastened and the other end is provided with a plurality of pin members respectively inserted into the receiving hole portion 211c to fasten one end to the at least one pin member coupling screw hole is installed so that the other end is inserted into the receiving hole portion 211c, respectively do.

In this embodiment, the second pressure roller 221 is rotated by the rotation driver 23 and the rotation of the second pressure roller 221 is transmitted to the first pressure roller 211 is made to rotate together.

The rotation driver 23 includes a motor 231 coupled to the base unit 1 and a single or multiple gears 232 and 233 connected to the motor 231. The gears 232 and 233 are connected to the gear 226 of the second pressure roller 221 to rotate the second pressure roller 221.

Accordingly, since the first pressure roller part 21 and the second pressure roller part 22 may be interlocked with each other, the rotation driving unit 23 may be simply configured.

Or a sprocket wheel connected to the motor 231, the sprocket wheel is connected to a chain, and the second pressure roller 221 has a sprocket wheel connected to the chain, thereby forming a chain transmission structure. The drive unit can also be configured.

The first pressure roller 211 is coupled to the pivot plate 311 of the drive unit 3, which will be described later, and the second pressure roller 221 is coupled to the base plate 11 of the base unit 1.

When the pivoting plate 311 rotates about the axis P1 of the hinge coupling part while the base unit 1 is fixed, the first pressing roller 211 and the second pressing roller 221 are welded. The operation of pressing the 51 and 52 in the up / down direction is achieved.

In the first press roller 211 and the second press roller 221, the rotating plate portions 211a and 221a and the shaft portions 211b and 221b extending from the center of the rotating plate portions 211a and 221a, respectively. It is provided.

Receiving casings (216, 224) for accommodating each shaft portion (211b, 221b) of the first pressing roller 211 and the second pressing roller 221 is coupled to the rotation plate 311 and the base unit (1) do. Each of the shaft portions 211b and 221b may be axially coupled to the receiving casings 216 and 224, respectively.

At this time, the inner housing casing 214 integrally coupled with the shaft portion 211b between the accommodation casing 216 for accommodating the first pressing roller 211 and the shaft portion 211b of the first pressing roller 211. ) Is interposed.

In addition, a thread is formed on the outer circumference of the inner accommodating casing 214 and the inner circumference of the accommodating casing 216.

By the above configuration, the inner accommodating casing 214 may be screwed into the accommodating casing 216 to be screwed at a predetermined position, and then tightened with a lock nut 217 to prevent any rotation. .

Therefore, the position of the shaft portion 211b may be adjusted according to the degree of screwing of the inner accommodating casing 216.

Accordingly, it is possible to easily adjust the position of the shaft portion 211b in the form of screw fastening and the distance between the first pressing roller 211 and the second pressing roller 221 is possible.

Therefore, the interval between the first pressurized roller 211 and the second pressurized roller 221 may be adjusted to correspond to the thickness of the end portion 53 to be welded for each product of the heat exchanger.

Thrust members 212 and 222 are interposed between the rotating plate portions 211a and 221a and the receiving casings 216 and 224.

The thrust members 212 and 222 are generated between the rotating plate portions 211a and 221a and the receiving casings 216 and 224 and absorb the thrust parallel to the shaft portion 211b. The thrust members 212 and 222 may be formed of thrust needle bearings.

In addition, shaft rotation members 213 and 215 are interposed between the shaft portion 211b and the inner accommodating casing 216. The shaft rotating members 213 and 215 allow the shaft portions 211b and 221b to rotate while being coupled to the inner receiving casings 216 and 224. The shaft rotating members 213 and 215 may be formed of a bearing, a needle bearing, and a bushing.

The pressurization unit 2 may consist of one or more pressurization units 2, 2 ′ on both sides of the welding unit 4 as shown in FIG. 15.

That is, according to the direction of movement of the welding unit, the pressurizing unit on the traveling direction pressurizes and rotates the end 53 to be welded and the pressurizing stopper 211d in the state in which the pressurizing unit opposite to the traveling direction releases the pressurization. ) Is in close contact with the end portion 53 to be welded to serve as a guide. After that, in the return operation of the welding unit 4, the return direction pressurization unit rotates by pressing and closes the end portion 53 to be welded, and the pressurization stopper in the opposite direction of the return direction releases the pressurization. 211d is in close contact with the end portion 53 to be welded to serve as a guide.

Therefore, when the pressurizing units 2 and 2 'are used on both sides of the welding unit 4, the moving direction and the returning direction of the welding unit are repeatedly switched as the moving direction of the welding unit 4 is switched. The pressurizing unit on the traveling side of the welding unit 4 rotates after being pressed closely and the pressurizing unit on the opposite side of the welding unit 4 is in close contact with the end 53 to be welded while releasing pressurization. And when the traveling direction of the welding unit 4 is changed in the opposite direction is made a structure in which the pressing unit performs a role change.

When the advancing direction of the welding unit 4 is switched in the opposite direction, the rotational directions of both of the pressurizing units 2 and 2 'also rotate to coincide with each other, and then, the welding unit 4 is switched in the opposite direction and switched in the opposite direction. It serves to move the.

 The pressing unit in the opposite direction of the traveling direction serves to guide the protruding stopper in close contact with the end portion 53 to be welded, and is not necessary until pressuring the end portion 53 to be welded. In order to achieve this, the end portion 53 to be welded may be rotated after pressure-contacting, such as a pressing unit in the direction of travel.

5 is a perspective view of the driving unit of FIG. 1, FIG. 8 is an exploded perspective view of the driving unit of FIG. 5, and FIG. 9 is a cross-sectional view of the driving unit of FIG. 5 in the B-B direction.

Referring to the drawings, the drive unit 3 includes a rotation plate portion 31 and a rotation drive portion 32.

One or more hinge coupling portions 313 and 13 are attached to the pivoting plate portion 31 and the base unit 1, respectively, and a shaft P1 is coupled to a central portion of the hinge coupling portion. As a result, the rotation plate part 31 can rotate with respect to the base unit 1.

The rotation drive unit 32 includes a bidirectional cylinder and rotates the rotation plate 311.

The body 324 of the cylinder is fixed to the pivoting plate 311 and one end 324a of the cylinder rod is pivoted to the hinge coupling portion 12 of the base unit 1 via the connecting members 325a and 325b. The shaft P2 is coupled so that it is possible.

Accordingly, when the one end of the cylinder rod 324a moves, the pivot plate 31 rotates with respect to the base unit 1.

The same effect can be obtained when the cylinder body 324 is fixed to the base unit 1 and one end 324a of the cylinder rod is fixed to the pivoting plate 311.

In this embodiment, since the rotation driving unit 23 is coupled to the base unit 1, the cylinder body 324 may be fixed to the rotation plate 311 to distribute the weight.

As described above, the first pressing roller 211 and the second pressing roller 221 are coupled to the pivoting plate part 31 and the base unit 1, respectively.

When the rotating plate 311 rotates with respect to the base unit 1, the first press roller 211 and the second press roller 221 may press the welding objects 51 and 52 in the superimposed direction. Can be.

As a result, the end portions 53 of the welding objects 51 and 52 are in close contact with each other.

Referring to FIG. 6, when the rod of the cylinder constituting the rotation drive part 32 is moved upward, the rotation plate 311 rotates in the counterclockwise direction, and the first pressure roller part 21 and the second pressure roller part are rotated. 22 performs the pressure release operation.

Referring to FIG. 7, when the rod of the cylinder constituting the rotation driving unit 32 moves downward, the rotation plate 311 rotates in a clockwise direction, and the first pressure roller part 21 and the second pressure roller part ( 22) is pressurized.

Thereby, the pressurizing operation | movement and the depressurization operation | movement which make the plate-shaped mutually overlapping welding objects 51 and 52 contact with each other by the drive unit 3 can be performed.

The other end 324b of the cylinder rod is coupled with a limiting member to limit the forward movement of the other end 324b of the cylinder rod.

As a result, the stroke limit of the pressurizing and depressurizing operations of the pressurizing unit 2 is effected by the limiting member.

In the plate heat exchanger, there is a general stacking interval of 13mm to 35mm for each product. According to this gap, the stroke of the pressurizing unit 2 is reduced by reducing the stroke in the narrow space and widening the stroke in the large space. Can be adjusted so as not to interfere with various gaps in the laminate structure.

Accordingly, the pressurizing and releasing operation is performed within the lamination intervals in accordance with various lamination intervals for each product of the plate heat exchanger 50, and the pressurizing unit 2 is inserted between the lamination intervals due to the limitation of the limiting member. When depressurizing, interference does not occur and stroke adjustment of pressurizing and depressurizing operations can be performed for each product.

The limiting member includes an accommodating casing 322, a supporting member 321, and an adjusting member 323.

The receiving casing 322 is provided with a groove into which the rod of the other side of the cylinder is inserted, and the forward movement of the rod is limited at the bottom surface 322a of the groove.

The support member 321 fixes the receiving casing 322 to the body 324 of the cylinder.

The adjusting member 323 is formed to protrude on the bottom surface 322a of the groove of the receiving casing 322 to adjust the distance that the rod can move.

One end of the cylinder rod is in contact with the bottom surface of the receiving casing 322 or one end of the adjustment member 323 is limited in movement.

Referring to the drawings, the support member includes a support plate 321a, an adjustable plate 321f, support parts 321b, 321c, 321d, and 321e and a lock nut 321g.

A hole is formed in the support plate 321a and an adjustable plate 321f is coupled to the hole.

The support parts 321b, 321c, 321d, and 321e are sequentially coupled to the cylinder to space the support plate 321a, to which the adjustable plate 321f is coupled, from the cylinder at a predetermined distance. The support part is composed of a plurality of nuts (321c, 321d, 321e) and a screw rod (321b).

The accommodation casing 322 is fixed to the adjustable plate 321f. The receiving casing 322 is screwed to the adjustable plate 321f and the position of the receiving casings 216 and 224 is fixed by the lock nut 321g.

Since the adjustment member 323 is formed to protrude from the bottom surface 322a of the groove, the position of the bottom surface 322a of the groove of the accommodation casings 216 and 224 is changed by the adjustment member 323. Occurs, and thus the limit distance of the stroke of the rod also changes.

It is preferable that the adjustment member 323 is a screw member 323a installed through the bottom surface 322a of the groove of the accommodation casing 322.

Therefore, the stroke of the rod can be easily adjusted by tightening and loosening the screw member 323a and fixing the nut 323b.

In other words, when the receiving casing 322 is screwed to the adjustable plate 321f as illustrated, the stroke of the rod may be adjusted by the receiving casings 216 and 224.

Therefore, the overall stroke adjustment can be made of the receiving casing 322, and fine stroke adjustment can be made of the screw member 323a, thereby enabling multiple precision stroke adjustments.

10 is a perspective view of the welding unit of FIG. 1, and FIG. 11 is an exploded perspective view of the welding unit of FIG. 10.

The welding unit 4 includes a welding torch portion 411, an angle adjusting portion and a position adjusting portion.

The welding torch unit 411 welds the end portion 53 to which the welding objects 51 and 52 abut.

       The angle adjusting unit is connected to the welding torch unit 411 and adjusts the angle of the welding torch unit 411.

The angle adjusting unit, the upper and lower angle adjusting unit and the left and right angle adjusting unit.

The vertical angle adjusting unit includes a coupling chuck 421 to which the welding torch unit 411 is coupled, and rotates the coupling chuck 421 in the vertical direction. Accordingly, the vertical angle of the welding torch portion 411 is adjusted.

Referring to the drawings, the coupling chuck 421 is coupled to the coupling chuck attachment plate 424 via the connection plates 422 and 423. The connecting plates 422 and 423 are coupled by the pins 3 to be rotatable to the coupling chuck attachment plate 424. A slit 424a may be formed on the coupling chuck attachment plate 424, and a scale indicating an angle may be displayed around the slit 424a.

The fixing plate 423 is coupled to the connection plate 423 by penetrating one end of the connection plate 423 and being inserted into and fixed to the slit 424a. The fixing pin 424b is screwed and fixed to one end of the connection plate 423.

When the connecting plate 423 is rotated about the pin 3, the fixing pin 424b may be rotated by the guide of the slit 424a interposed therebetween and the fixing pin 424b is fastened at a predetermined position. To fix the connection plate 423.

Accordingly, the vertical angle of the connection plate 423 may be adjusted, and as a result, the vertical angle of the welding torch part 411 connected to the connection plate may be adjusted.

The left and right angle control unit is connected to the vertical angle control unit and rotates the vertical angle control unit in the left and right directions. Accordingly, the left and right angles of the welding torch unit 411 are adjusted.

Referring to the drawings, the vertical angle adjustment unit is coupled to the welding unit attachment plate 431. The welding unit attachment plate 431 is coupled by a pin 14a so as to be rotatable to the welding unit base plate 14 coupled to the base unit 1.

A slit 431a may be formed on the welding unit attachment plate 431, and a scale indicating an angle may be displayed around the slit 431a.

A fixing pin 431b inserted into the slit 431a and penetrating through one end of the welding unit base plate 14 is coupled to the welding unit base plate 14. The fixing pin 431b is screwed to and fixed to the welding unit base plate 14.

When the welding unit attachment plate 431 is rotated about the pin 14a, the fixing pin 431b may be rotated by the guide of the slit 431a interposed therebetween, and the fixing pin 431b may be rotated at a predetermined position. To fix the welding unit attachment plate 431.

 Accordingly, the left and right angles of the welding unit attachment plate 431 may be adjusted, and as a result, the left and right angles of the welding torch part 411 connected to the welding unit attachment plate 431 may be adjusted.

The position adjusting portion is connected to the welding torch portion 411 and the position of the welding torch portion 411 is adjusted by the position adjusting portion.

The position adjusting unit includes a vertical position adjusting unit 441 and the front and rear position adjusting unit 451.

The vertical position adjusting unit 441 is connected to the coupling chuck 421 and the coupling chuck 421 is moved in the vertical direction by the vertical position adjusting unit 441. Accordingly, the vertical position of the welding torch portion 411 is adjusted.

Referring to the drawings, the vertical position adjusting unit 441 is coupled to the coupling chuck attachment plate 424 and moves the coupling chuck attachment plate 424 in the vertical direction. Accordingly, the vertical position of the welding torch portion 411 connected to the coupling chuck attachment plate 424 is adjusted.

The front and rear position adjusting unit 451 is connected to the vertical position adjusting unit 441 and moves the vertical position adjusting unit 441 in the front and rear directions. Since the vertical position adjusting unit 441 is connected to the welding torch unit 411, the front and rear positions of the welding torch unit 411 are adjusted as a result.

The up and down position adjustment unit 441 and the front and rear position adjustment unit 451 is made to adjust the adjustment handle manually by the operator to adjust the up and down and front and rear position and may further include a motor electric drive device with the adjustment handle. . The motor electric drive device may be made to be remotely driven by the electric control device 84 to be described later to adjust the up and down and front and rear positions by converting the rotary motion of the drive device to a linear motion.

The front and rear position adjusting unit 451 is fixed to the welding unit attachment plate 431 via a connecting plate 433, so that welding is performed from the welding unit attachment plate 431 to the welding torch portion 411 as an element. The unit 4 is configured.

12 to 15 are conceptual views showing a state of use of the welding apparatus 10 according to the first embodiment of the present invention.

The figure shows a state in which the welding apparatus 10 is used for the plate heat exchanger 50 in which the welding objects 51 and 52 are laminated | stacked mutually.

Referring to FIG. 12, the worker 30 positions the welding device 10 at the start of the welding section. Referring to FIG. 13, the welding device 10 pressurizes the welding objects 51 and 52 in the welding section. After close contact, it moves by itself and performs welding.

The welding device 10 may be connected to the spring balancing 20 or air balancing to offset the weight.

At the end of the welding device 10 is further provided with a guide auxiliary roller (2a) to balance the left and right balance of the welding unit (4), to prevent the inclination and to cancel the moment generated due to the rotation of the pressing unit (2) Can be. According to the guide auxiliary roller 2a, the pressing operation is performed by the pressing unit 2, and the roller surface of one or more guide auxiliary rollers 2a provided on either side of the pressing unit 2 supports the welding base material. When the welding unit 4 moves by itself, welding can be performed without support by the mobile unit.

In the first embodiment, in addition to the spring balancing 20 or air balancing for the movement of the welding device 10 is provided with a hoist crane to move in the front and rear, right and left directions and the spring balancing (20) on the hoist crane ) Or by hanging one end of the air balancing and the other end is connected to the hook is formed in the welding device 10 can support the welding device (10).

At this time, it is preferable that the engaging ring formed in the welding device 10 is made of three or more.

Accordingly, the welding device 10 may move to the supportable distance of the spring balancing 20 or the air balancing when the welding device 10 is rotated and moved in close contact with the end 53 to be welded.

When the spring balance 20 or the air balance is out of the supportable distance, the hoist crane is moved to move the spring balance 20 or air balancing and the support distance is increased to efficiently move the welding device 10. Can be.

Accordingly, the welding device 10 is provided with the spring balancing 20 or the air balancing and hoist crane can be elastically supported. In addition, when a welding operation is performed in one or more welding sections, such as when the start point and the end point are stacked in succession, the welding device 10 reaches the end point of the welding in each welding section constituting the laminated structure and the welding ends. Then, the welding device 10 may be moved by the XYZ movement of the spring balancing 20 or the air balancing and the hoist crane to the next welding section.

The hoist crane has an automatic speed control device for automatically controlling the speed of the traveling motor so that the hoist crane can move in proportion to the movement speed of the welding device 10 when the welding device 10 performs a welding operation. It may be further provided. Accordingly, the automatic speed control device of the hoist crane is provided with an encoder in the rotary motor for moving the hoist crane in the XYZ direction, the sensor is further provided to detect the moving speed of the welding device is read by the sensor The rotational speed of the rotary motor made by the automatic speed control may be synchronized with the measured movement speed of the welding device 10.

The hoist crane may be configured to be movable including manual operation to control the speed through the automatic speed control device or to support the welding device 10 to be movable through manual operation in a desired direction.

On the other hand, the upper part of the hoist crane is provided with a rotary roller for rolling motion and the rotary roller is further provided with a guide rail capable of reciprocating movement so that the rotary roller is seated on the guide rail and moves in rolling motion. When the wire of the hoist crane is connected, the movement of the hoist can be made by the rolling motion of the rotary roller.

Accordingly, when the welding device 10 connected to the hoist crane hook is moved, a roller movable support part of the welding device 10 in which the hoist moves along with the wire may be configured.

That is, when the movement range of the hoist crane is largely required, the welding device 10 may be made to support the hoist crane while moving by using the automatic speed control device.

On the contrary, when the movement range of the hoist crane is not largely required, it is first supported by the spring balancing 20 or the air balancing, and then after the spring balancing or the air balancing exceeds the movable range of the hoist crane through the manual operation of the hoist crane. Increase the support range of the welding device (10).

Alternatively, the welding device 10 may be supported to support the welding device 10 as the roller movable support unit, without the manual operation, but also outside the movable range of the spring balancing 20 or the air balancing.

As such, the method of supporting the welding device 10 by the hoist crane may be configured by selectively combining a method having an automatic speed control device, a manual operation method, or a method having a roller movable support unit.

In addition, by installing one or more masts for supporting the spring balancing 20 or air balancing, and by installing a boom connected to the mast to connect the hook of the spring balancing 20 or air balancing to be supported at the end of the boom The spring balancing 20, air balancing or direct welding device may be supported.

The welding device 10 may move in a reaction generated by the pressing unit 2 being rotated after being pressed in close contact, and a rotation driving unit 23 may be provided to achieve the rotating movement.

Alternatively, the welding device 10 may be configured to be moved by a rack pinion gear or a ball screw. That is, when the pressurizing unit 2 connected to the rotational drive unit 23 of the welding device 10 is formed with a gear gear that forms a full length in the longitudinal direction of the end portion 53 to be welded so that a pinion gear is formed and engaged therewith, The pressurizing unit 2 is rotated by the rotational movement of the rotary drive unit 23. As a result, the pinion gear connected to the pressurizing unit 2 rotates so that the welding device is driven by the power transmission structure of the rack gear and the pinion gear. 10 is moved.

When the welding device 10 is configured to be moved by a ball screw, the welding device 10 is provided with a nut, and in the longitudinal direction of the end portion 53 to be welded, in the length direction of the end portion 53 to be welded. The welding device 10 may be moved by having a screw threaded and rolling in a full length.

Alternatively, the welding device 10 may be moved by a pushing or pulling transfer operation of the operator after the pressure unit 2 is pressed in close contact without using the power of the rotation driving unit 23.

Welding device 10 according to the first embodiment of the present invention as described above operates as follows.

The operator 30 operates the rotation drive part 32 of the pressurizing unit 2 to open the first pressurized roller 211 and the second pressurized roller 221.

The operator 30 holds the handle 70 (see FIG. 1) to move the welding device 10 so that the welding objects 51 and 52 are placed between the first pressure roller 211 and the second pressure roller 221. Position it.

The worker 30 is brought into close contact with the end portion 53 of the welding object (51, 52) of the projection (211d) of any one of the pressure roller (211).

In the above state, the rotation driving unit 32 of the driving unit 3 is operated to allow the first pressing roller 211 and the second pressing roller 221 to press the welding objects 51 and 52.

When the protrusion 211d moves while maintaining the state in close contact with the ends 53 of the welding objects 51 and 52, the welding unit 4 moves the ends 53 of the welding objects 51 and 52. It is possible to follow and weld.

That is, when the first pressure roller 211 and the second pressure roller 221 are rotated, the pressure roller 221 moves the welding objects 51 and 52 in close contact with each other, so that the protrusion 211 d moves the welding object 51. , 52 is maintained in close contact with the end 53 and the operator 30 moves the welding device 10 by itself without moving the welding device 10 while pressing and guiding and welding are simultaneously performed.

After work on one stacked welding line, to move the welding device to the next line

The operator operates the rotation drive part 32 of the pressurizing unit 2 to cause the first pressurized roller 211 and the second pressurized roller 221 to release the welding objects 51 and 52.

Thereafter, the worker moves the welding apparatus 10 to the next line and repeats the same process in the next line.

16 is a perspective view showing a welding apparatus 50 according to a second embodiment of the present invention.

The welding device 50 according to the second embodiment of the present invention includes a base unit 1, a pressurizing unit 2, a drive unit 3, a welding unit 4, a suspension unit 5, and a positioning unit 6. ) Is included.

The base unit 1, the pressurizing unit 2, the drive unit 3 and the welding unit 4 are made of the same configuration as the welding apparatus 10 according to the first embodiment of the present invention.

However, the welding device 10 according to the first embodiment cannot be connected to a device having an XYZ operation function by an articulated robot or a CNC, and also has an XYZ operation function by an articulated robot or a CNC. By performing the moving operation while maintaining the direction taught or controlled in one direction of 3D, the condition of the base material deformed by bending and welding heat in the top and bottom and front and rear directions of the base material and welding heat at the same time is simultaneously detected. It may not be easy to ensure precise delivery.

Therefore, the second embodiment includes a unit that solves the above problems, so that the second embodiment can be connected to a device having an XYZ operation function by an articulated robot or a CNC. The spacing and position of the can be kept constant to achieve high quality weldability.

In the second embodiment, the welding device 100 automatically performs a welding operation.

17 and 18 are perspective views illustrating the suspension unit of FIG. 16, FIG. 19 is an exploded perspective view of the suspension unit of FIGS. 17 and 18, and FIG. 22 is a cross-sectional view of the suspension unit of FIG.

The suspension unit 5 is connected to the base unit 1 and applies a force to the base unit 1 in a direction opposite to the direction of gravity to cancel the influence of gravity applied to the base unit 1. As a result, the vertical flow of the base unit 1 is free.

The base unit 1 may flow in the up and down direction when there is a bend on the surface pressed by the pressing unit 2 in the plate-shaped welding objects 51 and 52. The suspension unit 5 can smoothly and precisely flow in the vertical direction, and accordingly, welding line tracking operation in the vertical direction generated by the vertical movement of the base unit 1 can be performed.

Referring to the drawings, the suspension unit 5 includes a cylinder 53 coupled to the base unit 1. The cylinder 53 presses the base unit 1 upwards to cancel the load of the base unit 1.

That is, the cylinder 53 pressurizes the base unit 1 in an upward direction, and a pressurizing unit 2, a driving unit 3, and a welding unit 4 connected to the base unit 1 and the base unit 1. ) Cancels its own weight so that it is not affected by its own weight.

At this time, the cylinder 53 is a bidirectional cylinder, one end 532a of the cylinder rod 532 is connected to the base unit 1 and the other end 532b is supported so that the flow of the cylinder rod 532 is free. Is connected to the support member 54.

Referring to the drawings, a suspension base plate 15 is coupled to the base unit 1 in a direction substantially perpendicular to the base plate 11.

A flow plate 511 is coupled to the suspension base plate 15, and a suspension cylinder bracket 532 is coupled to the flow plate 511, and one end 532a of the cylinder rod 532 is attached to the suspension cylinder bracket 532. ) Is combined.

The suspension base plate 15 and the flow plate 511 may be coupled by a fastener 511a, and the flow plate 511 and the suspension cylinder bracket 532 may be coupled by fitting a protrusion and a groove. have.

Accordingly, the flow plate 511 and the suspension base plate 15 also rise / fall as the cylinder rod 532 rises / falls.

The cylinder 53 is mounted on the cylinder fixing plate 522 coupled to the suspension unit attachment plate 521, and the support plate 523 supports the cylinder fixing plate 522 at both ends.

Meanwhile, the suspension unit 5 includes a guide bar 524 and a guide block 512 for smoothly raising / lowering the base plate 11.

One end of the guide bar 524 is fixed to the guide bar fixing plate 524 coupled to the suspension unit attachment plate 521, and the other end of the guide bar 524 is fixed to the cylinder fixing plate 522.

The guide block 512 may be coupled to the flow plate 511 in one or more lines to form one or more rows. The guide bar 524 penetrates and is coupled to the guide block 512.

In the present embodiment, the four guide blocks 512 are coupled to each other through the two guide bars 524. However, the guide blocks 512 and the guide bars 524 are increased to smoothly move up and down. can do.

Therefore, as shown in FIGS. 20 and 21, as the flow plate 511 rises / falls, the guide block 512 is guided by the guide bar 524 and rises / decreases like the flow plate 511. Descend.

Accordingly, the base plate 11 can be raised / lowered stably.

The support member 54 has a cap 541 in which a groove into which the other end of the cylinder 53 is inserted is formed, a fixing member 542 for fixing the cap 541 to the cylinder body, and the cap part ( An elastic member 543 inserted into the 541 and elastically supporting the other end of the cylinder 53 is included.

A hole is formed in the fixing member 542, and the cap part 541 is coupled through the hole. A step is formed in the cap part 541 and the fixing member 542 is engaged to the position of the step.

A parallel member 541a is interposed between the elastic member 543 and the other end 532b of the cylinder 53 to support the other end 532b of the cylinder 53 to receive elastic repulsive force.

The fixing member 542 is fixed in position by a plurality of nuts 542b and a screw rod 542a, and thus the cap part 541 is fixed at a predetermined distance from the cylinder 53.

The pressing member (2), the driving unit (3), and the welding unit connected to the base unit (1) and the base unit (1) by the supporting member (54) and the pressing force of the cylinder (53). The balancing point of self-gravity by (4) is kept constant.

The suspension unit 5 may further include a locking device that integrates the base unit 1 and the suspension unit 5 and prevents the flow of the pressurization unit 2.

The locking device is a type in which fixed cylinders 515 and 516 are attached to two brackets 513 and 514 coupled to the flow plate 511 connected to the base unit 1, respectively. The fixed cylinders 515 and 516 are attached by fasteners 515b and 516b in such a way that the cylinder rods face each other.

Fixed rods 515a and 516a are connected to the rods of the fixed cylinders 515 and 516.

The fixing rods 515a and 516a press the fixing plate 525 attached to the suspension unit attachment plate 521 in the vertical direction by the forward movement of the rod. Thus, the flow plate 511 is pushed and fixed.

On the contrary, the fixing cylinders 515 and 516 are not attached to the two brackets 513 and 514 respectively coupled to the flow plate 511, but two brackets (not shown) are coupled to the suspension unit attachment plate 521. It can be attached to. When the bracket positions of the fixed cylinders 515 and 516 are changed in this way, the fixing plate 525 is also attached to the flow plate 511 instead of being attached to the suspension unit attachment plate 521. That is, the fixing cylinders 515 and 516 and the fixing plate 525 may be installed to cross each other in correspondence with the installation positions.

Accordingly, the base unit 1 and the suspension unit 5 can be integrated, and shaking can be prevented when the welding apparatus 10 moves.

It is also possible to return the base unit 1 to the origin of the up and down flow of the suspension unit 5.

That is, the locking device is the welding device 50 reaches the welding end point in each welding section of the laminated structure when the welding operation is composed of one or more welding sections, such as when the start point and the end point is stacked and continuous. When the welding is completed, the center portion of the welded torch portion moved up and down to an arbitrary position in each welding section is returned to the same locking position every time, and returned to the origin point of the up and down flow. The center of the welding torch moved to the flow origin when moving to the next welding section continuously moves to the same starting point for each welding section so that the precise welding start position is uniformly managed in each consecutive welding section. To improve the accuracy of the continuous welding operation.

FIG. 23 is a perspective view illustrating the positioning unit of FIG. 16, and FIG. 24 is an exploded perspective view of the positioning unit of FIG. 23.

The positioning unit 6 is connected to the base unit 1, and the protruding stopper 211d is moved to a position for closely contacting the welding object, and the protruding stopper 211d is gradually welded to the welding unit. It comes in close contact with the ends 53 of the objects 51 and 52.

Referring to the drawings, the positioning unit 6 includes a first cylinder 631 and a second cylinder 632 coupled to each other. The first cylinder 631 and the second cylinder 632 are coupled so that the cylinder rods face in opposite directions to each other.

The rod of the first cylinder 631 is fixed to the positioning unit attachment plate 622 and the rod of the second cylinder 632 is fixed to the suspension unit attachment plate 521.

By the operation of the first cylinder 631 and the second cylinder 632, the suspension unit attachment plate 521 moves in a multi-step manner.

Accordingly, the suspension unit 5 and the base unit 1 connected to the suspension unit 5, the drive unit 3 provided in the base unit 1, the pressurizing unit 2 and the welding unit 4 are provided. Accompanied by multiple stages.

25 to 27, by the operation of the first cylinder 631, the pressurizing unit 2 is moved to a position for bringing the welding objects 51 and 52 into close contact (primary advancing operation).

By the operation of the second cylinder 632 in the moved position as described above, the projecting portion 211d of the pressing unit 2 is in close contact with the end portion 53 where the welding objects 51 and 52 abut (secondary). Forward movement).

In the second forward movement, the rod of the second cylinder 632 is in a state in which flow is possible. In order to achieve a state in which the rod of the second cylinder 632 may flow during the second forward movement, a precision regulator is preferably used for the second cylinder 632.

Therefore, the protruding portion of the end portion 53 of the welding object (51, 52) can be accommodated in the first forward motion and the recessed portion can be accommodated in close contact with the second forward motion. It is possible to guide while 211d) is in close contact with the protruding portion and the recessed portion.

At this time, when the protruding portion of the end 53 is small, the protruding stopper 211d may be in close contact with the protruding portion of the end 53 by the second forward movement.

That is, the projecting portion 211d of the pressing unit 2 follows the weld line that is deformed in the front-rear direction of the end portion 53 of the welding object 51, 52 by engaging with the protruding portion and the recessed portion of the end portion 53. To be maintained.

In the embodiment using the two cylinders 631 and 632 as described above, in the case where the welding operation is composed of one or more welding sections, such as when the starting point and the ending point are laminated and continuous, in each welding section forming a laminated structure When the welding device 50 reaches the end point of welding and the welding ends, only the second forward movement is released and reversed, and the first forward movement is maintained until the welding section where the next welding operation is started, and then In order to perform the welding work in the welding section, the second forward movement is performed again and the welding work is performed. As described above, the welding operation is performed until the last welding section in such a manner that only the second forward movement is advanced / reversed.

The first cylinder 631 and the second cylinder 632 may be interchanged with each other to perform a role.

As described above, the first cylinder 631 and the second cylinder 632 may be used by using a single two-stage cylinder, and the first cylinder 631 and the first cylinder 631 may be configured to face the same direction. The second cylinder 632 may be coupled in a row.

On the other hand, the positioning unit 6 is provided with a guide bar 623 and a guide block 614 to facilitate the forward / backward of the suspension unit attachment plate 521.

One end of the guide bar 623 is fixed to the positioning unit attachment plate 622, and the other end of the guide bar 623 is fixed to the guide bar support plate 621.

The guide bar 623 is screwed at both ends and both ends thereof pass through the positioning unit attachment plate 622 and the guide bar support plate 621, respectively, and then are fastened and fixed by nuts 623a.

The guide block 614 may be coupled in one or more lines to the moving plates 612 and 613 coupled to the suspension unit attachment plate 521 to form one or more rows. The guide bar 623 penetrates and is coupled to the guide block 614.

In the present embodiment, the four guide blocks 512 are coupled to the four guide bars 524, but the guide block 614 and the guide bar 623 are smoothly used for the forward / backward operation in the forward and backward directions. It can be done by increasing.

Therefore, as the suspension unit attachment plate 521 is moved forward / backward, the guide block 614 is guided by the guide bar 623 and moves forward / backward with the suspension unit attachment plate 521.

In addition, the positioning unit 6 may be provided with a level gauge 616 displaying a horizontal state.

The horizontal system 616 is installed on a bracket 615 in which one side is coupled to the suspension unit attachment plate 521 and the other side is coupled to the moving plate 613.

28 is a perspective view showing a welding apparatus 100 according to a third embodiment of the present invention.

The welding apparatus 100 according to the third embodiment of the present invention includes a base unit 1, a pressurizing unit 2, a drive unit 3, a welding unit 4, a suspension unit 5, and a positioning unit 6. ), A grinding unit 7 and a monitoring unit 8.

The base unit 1, the pressurizing unit 2, the drive unit 3, the welding unit 4, the suspension unit 5 and the positioning unit 6 are welding devices according to the second embodiment of the present invention ( It has the same configuration as 50).

If the end faces of the base materials overlap each other, the welding work cannot be performed because the welding conditions cannot be achieved. Therefore, the end faces should be smoothly mapped by grinding. However, according to the second embodiment, the grinding work of the end faces deviated from each other is inevitably made by an additional process by a manual work of grinding the end parts deviated by the operator. In addition, when the grinding operation by hand, the precision is reduced, if the end surface is not precisely matched, the problem of the welding quality can reach the level.

Therefore, the third embodiment includes a unit that solves the above problems, so that the work of grinding the end surfaces of the base materials superimposed on each other and the welding work can be performed by a single work process, and the steps of the superimposed base materials The surface can be precisely matched to achieve high quality weldability.

In the third embodiment, the welding apparatus 100 may automatically perform grinding work to achieve fully automated welding.

FIG. 29 is a perspective view illustrating the grinding unit of FIG. 28, and FIG. 30 is an exploded perspective view of the grinding unit of FIG. 29.

The grinding unit 7 smoothly maps the welding surface of the end portion 53 to be welded so that a welding condition of the end portion 53 to be welded is formed before welding is made by the welding unit 4.

The grinding unit 7 includes a grinder portion 71, a vertical driving portion 72, an angle adjusting portion 73, and a front and rear driving portion 74.

The grinder portion 71 smoothly processes the end portions 53 of the welding objects 51 and 52 to improve welding conditions. One or more grinders may be provided.

The grinder part 71 is provided with a finishing member 712 in contact with the end portion 53 at one end of the grinder 711.

The finishing member 712 may be formed in any one of a disk shape, a cone shape, and a cylindrical shape.

In addition, the grinder 711 is coupled to the coupling chuck 713. The coupling chuck 713 is connected to the moving plate 724 via the connecting plates 714 and 715.

The vertical driving unit 72 is connected to the grinder 711 and reciprocates the grinder 711.

The up and down drive unit is configured to transmit linear power to any one of the structures for reciprocating the screw and nut by reciprocating movement by the reciprocating motion by the pneumatic cylinder or crank operation by the rotational movement or by the left and right repeated rotation by the power. Can be.

Accordingly, the contact area between the base material end 53 and the finishing member 712 is widened to increase the degree of polishing, wear of the entire tool is uniformly performed, and grinding can be effectively performed.

The moving plate 724 to which the connecting plate 715 is coupled is connected to the up and down driving cylinder 721 via the connecting plates 722 and 723. The vertical driving cylinder 721 is installed so that the cylinder rod moves up and down.

As the cylinder rod moves up and down, the coupling chuck 713 moves up and down, and as a result, the grinder 711 coupled to the coupling chuck 713 moves up and down.

The angle adjusting unit 73 is coupled to the vertical drive unit and adjusts the angle of the grinder unit.

Referring to the drawings, the cylinder is fixed to the rotating plate 731. A slit is formed on the rotating plate 731, and a scale indicating an angle may be displayed around the slit.

The rotating plate 731 is rotatably coupled to the fixed plate 732. As the rotating plate 731 rotates, the vertical driving cylinder 721 fixed to the rotating plate 731 rotates.

In addition, when the coupling chuck 713 connected to the vertical driving cylinder 721 is rotated and the coupling chuck 713 is rotated, the grinder 711 coupled to the coupling chuck 713 rotates. Accordingly, the angle of the grinder 711 can be adjusted.

The front and rear drive unit 74 is connected to the vertical drive unit 72 and moves the vertical drive unit 72 to bring the grinder 711 into close contact with the weld base material.

That is, the front and rear drive unit 74 is in close contact with the end portion 53 of the welding object (51, 52) by advancing the grinder portion 71 before the start of the welding operation. Accordingly, the finishing work is performed. At the end of the welding operation, the grinder unit 71 is moved backward so as to avoid interference with the welding objects 51 and 52.

Referring to the drawings, the fixing plate 731 is coupled to the front and rear driving cylinder 743 via the connecting plate 744.

The front and rear drive cylinders 743 are bidirectional cylinders, and rods on both sides thereof are coupled to the cylinder fixing plates 741 and 742, respectively. The cylinder fixing plates 741 and 742 are fixed to the grinding unit base plate 173.

The grinding unit base plate 173 is fixed to the base plate 11 via connecting plates 171 and 172.

In this configuration, when the front and rear drive cylinder 743 is operated, the body of the front and back drive cylinder 743 is driven back and forth along the cylinder rod.

When the body of the front and rear drive cylinder 743 is driven back and forth, the fixed plate 732 connected to the body of the front and rear drive cylinder 743 is driven back and forth. When the fixing plate 732 is driven back and forth, the vertical drive cylinder 721 is driven back and forth.

In addition, since the coupling chuck 713 connected to the vertical driving cylinder 721 is driven back and forth, the grinder 711 coupled to the coupling chuck 713 is driven back and forth.

Since the grinding work should be a work preceding the welding work, it is preferable that the welding device 100 is provided with the grinding unit 7 at a position preceding the welding unit 4 in the moving direction. Do.

The welding device 100 may be further provided with a monitoring unit 8 for monitoring the grinding and welding conditions.

Referring to FIG. 31, in the monitoring unit, the grinding unit 7 monitors the finishing progress when finishing finishing the ends 53 of the welding objects 51 and 52 and the welding unit. A second camera portion 82 for monitoring the welding performance state of (4) is included.

In addition, the monitoring unit 8, the monitor unit 83 for outputting the image of the first camera unit 81 and the second camera unit 82 and the up and down position adjusting unit 441 of the welding unit 4 and An electric control unit 84 capable of remotely driving the front and rear position adjusting unit 451 may be further provided. Accordingly, job monitoring is possible by the monitoring unit 8.

The welding device 100 may be configured to perform CO 2 gas arc welding, plasma arc welding, laser beam welding, and tag welding, but in particular, when the welding device is made of a tag welding device, the tungsten electrode is consumed little by little by high heat during the welding process. As a result, the gap between the electrode and the base material becomes farther away in the welding process, and thus the welding quality is deteriorated. Therefore, fine gap correction is required in real time.

That is, at the beginning of the welding operation in the front and rear intervals between the central portion of the welding torch and the welding object 53, the interval adjustment is performed such that the constant stop is maintained by the protruding stopper 211d during the welding process. However, in the progress of the welding operation, only the following operation can be performed according to the shape changing in the front-rear direction of the welding object 53 by the central portion of the welding torch, so that the tungsten, which is the central portion of the welding torch, can be made. The distance that the electrode is consumed cannot be corrected.

Accordingly, the welding torch may be constantly maintained by the welding device 100 with the gap between the base material and the center portion of the torch end, but the electrode may be consumed little by little in the welding process, so that the electrode is between the tungsten electrode and the base material. The gap between and becomes farther away and needs to be corrected by the length of the consumed tungsten electrode. To this end, the gap between the tungsten electrode and the base material is automatically measured by recognizing the displacement amount of the voltage value, and the automatic correction of the TIG welding electrode to obtain good welding quality by correcting the distance from the base material by the distance of the consumed tungsten electrode. The device may be further provided.

That is, the automatic calibration device (not shown) of the TIG welding electrode that automatically corrects the consumption of the TIG welding electrode (not shown) measures the voltage applied to the electrode in order to maintain a constant welding voltage and the front and rear position A power transmission unit formed in the control unit 451 and generating a driving force, an encoder unit attached to the motor unit, and a motor unit connected to the motor unit to convert the rotational movement of the motor unit into a linear movement of the tungsten electrode; When the voltage value of the measuring unit is different from the set voltage value, it may be made by including a control controller for detecting the change in distance between the electrode and the base material to drive the motor unit to match the set voltage value to achieve the correction movement of the electrode.

  Accordingly, the control control unit detects a change in distance between the electrode and the base material, and the motor unit formed in the front and rear position adjusting unit 451 to match the set voltage value when the voltage value of the measuring unit is different from the set voltage value. When the motor unit formed in the front and rear position adjusting unit 451 is rotated by the driving signal, the front and rear position adjusting unit 451 moves forward and backward by the power transmission unit, so that the tungsten tig welding electrode also performs forward and backward operation. do. The encoder may detect the rotational speed of the motor and the detected movement amount may be transferred to the control controller to determine the current position and the movement amount so that the automatic correction movement amount may be controlled. The front and rear intervals between the welding target 53 and the tungsten tig welding electrode are set in the control adjusting unit so that the front and rear interval set values are maintained through automatic correction and the welding operation is performed.

Accordingly, the welding apparatus performs welding in the state where the protrusion is made to be in close contact with the base material, so that the distance and position between the base material and the center portion of the end of the welding torch can be kept constant. The base material can also maintain a constant gap can obtain a better weldability.

31 and 32 are conceptual views showing a state of use of the welding apparatus according to a third embodiment of the present invention.

Referring to the drawings, a moving unit 300 is further provided to move the welding apparatus 100.

The moving unit 300 includes a driving unit connected to the base unit 1 and capable of three-dimensional movement of the base unit 1, and a control unit for controlling and manipulating the driving unit by synchronizing with the driving unit through an interface. do.

At this time, the drive unit may use any one of a device having an XYZ operation function by a multi-joint robot or a CNC.

The articulated robot (300) has a highly laminated structure in which the welding objects (51, 52) are higher than the workable radius of the articulated robot arm when the robot base of the articulated robot (300) is moved upward and downward. Formed on a slide unit (not shown) capable of a slide flow can be made to be able to weld all of the welding section forming a highly laminated structure.

Since the slide unit of the articulated robot 300 has a structure in which the welding objects 51 and 52 are stacked high, the articulated robot 300 is positioned at a welding section to be worked so that each welding section can be welded. ) Slide up and down.

Accordingly, the welding section within the workable radius range of the articulated robot arm forms a work section of a block (region) that does not require slide transfer, and is stacked high so that the section outside the workable radius range of the articulated robot arm is Since the welding operation cannot be performed using only the articulated robot arm while the articulated robot base is fixed, the slide section is a work section of a block (area) that requires a slide transfer to a position where the articulated robot arm can perform work. Will be achieved.

Therefore, the work section may form one or more blocks to move the slide unit to a position to work, and to perform work for each of the upper and lower work section blocks.

The moving drive unit of the slide unit may be slidably moved to form a power transmission drive unit by any one of a hydraulic cylinder, a ball screw or a rack pinion gear system.

That is, the slide unit is installed to move along the linear guide rail and the linear guide rail in the vertical direction to form a linear movement structure and connected to the mobile slider means and the mobile slider means for fixing the articulated robot base on the upper surface Hydraulic cylinder, the drive motor and the ball screw, the drive motor is made of any one of the drive gear and the rack pinion gear structure is provided.

In addition, when the linear guide rail to form the linear movement structure of the slide unit in the left and right direction can be welded to a plurality of welding section blocks made in the left and right directions.

Accordingly, the articulated robot moves the welding device 100 as a mobile unit, and the slide unit moves up and down or left and right with respect to a work section in a vertical or horizontal direction outside the working radius range of the articulated robot arm. The multi-joint robot can be moved and the welding device 100 can perform welding operations for all the welding sections in the up, down, left, and right directions.

Welding apparatus 100 as described above operates as follows.

Welding apparatus 100 according to the third embodiment of the present invention is operated in accordance with the welding preparation step, the base material entry welding start step and the welding end step.

First, in the welding preparation step, it is first checked whether the pressure of the cylinder constituting the suspension unit 5 and the self-weight of the base unit 1 are canceled out.

Next, the first cylinder 631 of the positioning unit 6 moves forward to move the base unit 1. As a result, the pressing rollers 211 and 221 of the pressing unit 2 connected to the base unit 1 are moved to a position for pressing the welding objects 51 and 52.

At this time, the base unit 1 and the suspension unit 5 are in an integrated state by the operation of the fixed cylinders 515 and 516.

Meanwhile, the first press roller 211 and the second press roller 221 of the pressurizing unit 2 are spaced apart from each other by the drive unit 3.

Accordingly, the welding objects 51 and 52 are positioned between the first press roller 211 and the second press roller 221.

Next, in the base material entry welding start step, the fixed cylinders 515 and 516 are first retracted so that the base unit 1 is in a state capable of vertical flow.

Next, the rotation plate 311 is rotated by the operation of the drive unit 3 so that the first pressing roller 211 and the second pressing roller 221 press the welding objects 51 and 52.

Next, the second cylinder 632 of the positioning unit 6 is advanced so that the protrusion 211d formed in the first pressure roller 211 is brought into close contact with the ends 53 of the welding objects 51 and 52. .

In this state, when the second press roller 221 is rotated, the first press roller 211 rotates in association with the second press roller 221.

Next, the front and rear drive cylinder 743 of the grinding unit 7 is operated to bring the finishing member 712 of the grinder 711 into close contact with the end portion 53 where the welding objects 51 and 52 abut, and after the grinding starts, The vertical drive cylinder 721 is operated to cause the grinder 711 to reciprocate to map the end portion 53 to which the welding objects 51 and 52 abut.

The welding torch unit 411 welds the end portions 53 of the welded objects 51 and 52 that are welded by supplying a welding current to the welding unit at the same time as the pressing roller is rotated and the grinding start of the grinder is started.

In addition, the upper and lower position adjusting portion 441 and the front and rear position adjusting portion while performing welding when the distance and position adjustment of the center portion of the torch end and the end portion 53 of the welding object 51 and 52 are necessary. 451) with fine adjustment.

Finally, in the welding termination step, at the same time as the welding operation of the welding torch unit 411, the front and rear driving cylinder 743 of the grinding unit 7 is operated to move the finishing member 712 of the grinder 711 to the above. The reciprocating motion of the grinder 711 is completed by spaced apart from the end portion 53 to which the welding targets 51 and 52 abut, stopping the grinding and the vertical driving cylinder 721.

At the same time as the rotation of the pressure roller and the finishing of the grinder, the rotation of the second pressure roller 221 is stopped to stop the interlocking rotation of the second pressure roller 211 and the first pressure roller 211.

Next, the second cylinder 632 of the positioning unit 6 is reversed so that the protrusion 211d formed in the first press roller 211 is in close contact with the ends 53 of the welding objects 51 and 52. Release it.

Next, the rotation plate 311 is rotated by the operation of the drive unit 3 to allow the first pressure roller 211 and the second pressure roller 221 to press the welding objects 51 and 52. Release it.

The fixed cylinders 515 and 516 of the suspension unit 5 press and hold the fixing plate 525 attached to the suspension unit attachment plate 521 in the up and down direction by forward movement to press-fix the fixed base unit 1. .

By using the articulated robot 300 coupled to the welding device 10, the welding device 10 is moved to the position of the next welding object 51, 52.

Repeat this operation.

33 is a view showing another form of the pressurizing unit and the driving unit of the welding apparatus according to the embodiment of the present invention.

Referring to the drawings, the pressurizing unit 2 'is provided with a cylindrical first drive roller 211' and a second drive roller 221 ', and are driven by separate driving units 23a and 23b, respectively.

A drive unit (not shown) is connected to the drive unit. By the operation of the driving unit (not shown), the first driving roller 211 ′ and the second driving roller 221 ′ press the welding objects 51 and 52 in the superimposed direction.

Steps 211a 'and 221a' are formed on the first driving rollers 211 'and the second driving rollers 221', respectively, and the steps 211a 'and 221a' are the welding objects 51 and 52, respectively. It is in close contact with the end 53 of the.

The welding torch part 411 is disposed at the left side or the right side of the first driving roller 211 ′ and the second driving roller 221 ′, so that the first driving roller 211 ′ and the second driving roller 221 are disposed. When the 221 'is moved while rotating, guides are made by the stepped portions 211a' and 221a 'at the same time as the base material is pressed, and the end portions 53 to which the welding objects 51 and 52 contact are welded.

FIG. 34 is a perspective view illustrating a welding apparatus 150 according to a fourth embodiment of the present invention. FIG. 35 is a conceptual diagram illustrating a use state of the welding apparatus 150 according to the fourth embodiment of the present invention. 34 is a cross-sectional view of the DD direction, and FIG. 37 is a view showing another embodiment of the pressure assisting roller unit 8 according to the embodiment of the present invention.

The welding apparatus 150 according to the fourth embodiment of the present invention includes a base unit 1, a pressurizing unit 2, a drive unit 3, a welding unit 4, a suspension unit 5, and a positioning unit 6. ), A grinding unit 7 and a pressure assisted roller unit 8.

The base unit 1, the pressurizing unit 2, the drive unit 3, the welding unit 4, the suspension unit 5, the positioning unit 6 and the grinding unit 7 are the third embodiment of the present invention. It is made of the same configuration as the welding device 100 according to the example.

The embodiment of the pressurized auxiliary roller unit 8 may be implemented by selectively combining all or part of the above embodiments and the base unit 1, the pressurizing unit 2, the driving unit 3, and the welding unit. (4) and the pressurized auxiliary roller unit 8 may be implemented only, but as will be described later, a configuration in which the pressurized auxiliary roller unit 8 is selectively combined with the third embodiment will be described in detail in the fourth embodiment. Let's explain.

In the heat exchanger manufacturing process for forming a heat transfer shell consisting of the sealing welding of the welding object to form a step of performing welding so that the welding sealing line is provided in the longitudinal direction of the two sheets of the welding base material on the rectangular plate;

Sequentially laminating welding base materials constituting the welded heat transfer shell;

Welding is performed between the laminated heat transfer shells in a direction different from the length direction to laminate a plurality of heat transfer shells in a multi-layered manner so that a welding sealing line is provided.

In the case of a process consisting of an embodiment for performing a welding operation with the welding device may be applied to each according to the work process step.

Accordingly, in the case of the first embodiment, the second embodiment and the third embodiment, the welding may be performed to provide a welding sealing line between the stacked heat transfer shells. However, in the fourth embodiment, the welding is performed such that the heat shielding shells, which are welded base materials, are not laminated to form a layer, but two welded base metals having a rectangular plate shape are provided with a weld sealing line in the longitudinal direction in order to form one heat transfer shell. In the embodiment can be made to further improve the welding quality.

That is, in the first embodiment, the second embodiment, and the third embodiment, the structure of the stacked heat transfer shells interferes, and thus the pressing auxiliary roller units 8a and 8b may not be provided. Since there is no interference of the pressing auxiliary roller units (8a, 8b) can be made to be further provided.

According to the third embodiment, if the moving speed of the welding unit is increased to increase the work efficiency, the pressurized part is spaced apart due to the rapid transfer of the pressurized state of the pressurizing unit 2 before cooling of the molten part is achieved. This may cause cracks and poor welding. In order to prevent this phenomenon, in addition to the pressurization of the pressurizing unit 2 according to the fourth embodiment, the pressurization auxiliary roller 810 presses upward and downward so that the welding base material can be tightly adhered to each other, thereby smoothly welding the molten part. It is possible to perform an efficient welding operation by increasing the welding speed than the third embodiment.

The welding device 100 may be further provided with a pressurized auxiliary roller unit 8 that can closely adhere the welding base material.

Referring to FIG. 34, the pressurizing auxiliary roller unit 8 has the pressurizing unit 2 closely contacting the end portions 53 of the welding targets 51 and 52 and further closely adheres the base material in the vertical direction during welding. The pressurizing auxiliary roller part and the pressurizing auxiliary roller part may be included in the control unit for moving forward and backward in the vertical direction, respectively, and a slide part installed in connection with the pressurizing auxiliary roller part to achieve forward / backward movement according to the adjustment of the adjusting part. have.

The pressing auxiliary roller unit 8 is provided with one or more fixing brackets 850 connected to the slide base plate 860 and connected to the rotating plate and the base unit, and each fixing bracket 850 is the pressing auxiliary roller unit. It is connected to (8) and is fixed to the welding device. The fixing bracket 850 has a structure in which the pressing auxiliary roller units 8a and 8b may be installed vertically so that the pressing brackets 850 may be vertically pressurized with respect to the welding base material. When this movement can be made to move together with the base material is pressed.

One side of the fixing bracket 850 is connected to the slide base plate 860 in a substantially vertical manner and is fixed, and the other side of the fixing bracket 850 is connected to the end of the rotation plate 311 and the base plate 11 and fixed in a substantially vertical manner. In this case, the one or more fixing brackets 850 together with the position of the central portion of the welding torch portion 411 so that the pressure auxiliary roller 810 may be installed at a position for pressing the welding base material, the pressure auxiliary roller 810. It is preferable to be installed in consideration of the point where the pressing in the vertical direction.

The slide unit may include one or more slide guide blocks 821, guide block coupling plates 840, and slide blocks 822.

The slide base plate 860 may be formed such that at least one slide guide block 821 disposed in an opposite direction is installed at the inner outer edge portion.

The slide guide block 821 may be vertically installed from the slide base plate 860 and connected to the guide block coupling plate 840 through the fastener 850.

That is, at least one slide guide block 821 connected to the guide block coupling plate 840 and at least one slide base plate 860 may be provided with a space in which the slide block 822 may be guided and transferred. . A slide block 822 is provided in the slide transfer space to form a structure in which the slide block 822 can slide in the vertical direction.

The adjusting part is provided with an adjusting screw member 831, a locking part 833 abutting against the guide block coupling plate 840, and an adjusting handle 830 fixed to one end of the adjusting screw member 831, and adjusting the adjusting screw. The other end of the member 831 may be inserted into the slide block 822.

That is, the slide block 822 is provided with an adjustment screw hole 832 formed from one end, and the adjustment screw hole 832 is arbitrarily rotated by a screwing structure to slide the slide block 821 for the slide feed. Member 831 may be threaded.

Accordingly, when the adjustment screw member 831 is rotated in the state where the slide block 822 is inserted into the screw, the screwing structure of the adjustment screw member 831 is achieved by the screw coupling structure of the slide block 822. The movement of the slide block 821 may be performed by performing forward / backward movement as much as the moving pitch.

The adjustment screw member 831 is installed to penetrate the guide block coupling plate 840 to form a structure in which one end is inserted into the slide block 821. A central portion of the adjustment screw member 831 is provided with a locking portion 833 which is in contact with the guide block coupling plate 840 so that the adjustment screw by the locking portion 833 when the adjustment screw member 831 rotates. The position of the member 831 may be configured not to be transferred in the up / down direction.

The locking portion 833 forms an adjustment locking piece so that the adjustment screw member 831 is not transferred in the up / down direction even when the adjustment screw member 831 is rotated by the locking portion 833. Only block 821 may be conveyed by the screwing structure of the rotating control screw member 831.

The other end of the adjustment screw member 831 is coupled to the control handle 830 to rotate the control handle 830 to the left / right to achieve the operation to rotate the adjustment screw member 831 left / right accordingly The slide block 821 may achieve a slide transfer operation in an up / down direction.

The adjustment handle 830 may be inserted into and fixed to one end of the adjustment screw member 831 and coupled to the adjustment screw member 831 using a lock nut to prevent any rotation.

The amount of rotation of the adjustment handle 830 may be adjusted to achieve a pressing operation in consideration of the pressing force for pressing the base material.

A pressure auxiliary roller bracket 812 is connected to the slide block 822. Accordingly, when the up / down direction movement of the slide block 822 is made, the up / down direction movement of the pressure assist roller 810 is performed in conjunction with the pressure assist roller bracket 812.

The pressing auxiliary roller part is provided with a rotating disc-shaped plate and two shaft parts 811 protruding in opposite directions from the center part of the plate surface, and the one or more pressing parts after the rotation movement member is interposed on the shaft part 811. A pressing auxiliary roller 810 is provided at a coupling hole of the auxiliary roller bracket 812 and forms a structure in which the circumferential outer circumferential edge 813 of the plate presses the base material.

That is, instead of forming a structure in which the end portions of the welding object, such as the pressure rollers 211 and 221, are pressed to opposite surfaces of the first pressure roller 211 and the second pressure roller 221 parallel to the welding base material. The pressure auxiliary roller 810 perpendicular to the end of the circumferential outer periphery 813 of the pressure is achieved.

A device for supplying fluid from the fixed part to the rotating part, such as a rotary joint, is attached to the shaft portion 811 of the pressure assisting roller 810 to prevent the pressure assisting roller 810 from being overheated by welding heat. Cooling structure can be provided. That is, the coolant flows through the rotary joint device to cool the welding torch unit 411 and the high temperature of the welded part, which are transmitted to the pressure assisting roller 810.

That is, at least one pressurized auxiliary roller bracket 812 is provided, and a shaft rotating member is interposed in the shaft portion 811 of the pressurized auxiliary roller, and is inserted into the at least one pressurized auxiliary roller bracket 812 to enable rotational movement. The control handle 830 is rotated in the left / right direction to match the thickness of the base material pressed by the pressure unit 2 so that the upper pressurized auxiliary roller unit 8a is pressed downward and the lower pressurized auxiliary roller unit 8b. ) May be adjusted to press upwardly.

Accordingly, when the rotation plate 311 is rotated by the rotation of the rotary drive unit 23, the upper pressurizing auxiliary roller 810 connected to the rotation plate 311 is rotated and the welding object is pressed to press the pressure. The base material pressing operation of the auxiliary roller 810 is performed.

When the base material pressurizing operation of the pressure auxiliary roller unit 8, the distance between the upper pressure auxiliary roller unit 8a and the opposite side of the lower pressure auxiliary roller unit 8b is adjusted according to the thickness of each product of the heat exchanger. If it is controlled by the unit can achieve the same pressing force during each manufacturing process for each product can improve the welding quality.

Rather than achieving a slide conveying operation by the rotational movement of the adjusting screw member 831 and the adjusting handle 830, the pressing roller may be pressed by the forward and backward operation of the cylinder 830 '(see FIG. 37). ). That is, the cylinder 830 ′ is directly connected to the upper surface of the guide block coupling plate 840 so that one end of the rod of the cylinder 830 ′ penetrates the guide block coupling plate 840 so that the slide block 821 may be formed. The adjustment screw hole 832 is screwed to form a structure that is fixedly coupled to form a structure in which the slide block 821 is interlocked by the forward and backward operation of the cylinder 830 '.

The cylinder 830 ′ may be provided in any one of the upper pressurized auxiliary roller unit 8a and the lower pressurized auxiliary roller unit 8b. Accordingly, when the cylinder 830 'is installed in the upper pressurizing auxiliary roller unit 8a, the lower pressurizing auxiliary roller unit 8b is in close contact with the welding base material in addition to the pressurizing operation of the pressurizing unit 2 first. The cylinder 830 ′ of the unit may operate to form a structure in which the upper and lower pressurized auxiliary rollers 810 are in close contact with the welding base material. Therefore, in the process of inserting the welding base material between the upper and lower pressure auxiliary rollers 810, the welding auxiliary base material is too thick or the space between the upper and lower pressure auxiliary rollers 810 may occur due to the lack of space in the auxiliary pressure auxiliary roller ( 813 and the welding base material end 53 can be prevented.

Accordingly, during the welding operation, the pressurizing unit 2 presses the end portion 53 at which the welding targets 51 and 52 contact, and then the upper pressurizing auxiliary roller unit 8a or the lower pressurizing auxiliary roller unit 8b at a time interval. ), The cylinder 830 ′ provided at any one of the s) may be operated, and the pressing unit 2 and the upper and lower pressing auxiliary rollers 810 may be formed while further contacting the welding base material.

The pressurizing pressure during the pressurizing operation of the base material of the pressurizing auxiliary roller unit 8 is controlled by the regulator of the cylinder 830 'connected to the pressurizing auxiliary roller without the need to adjust the thickness according to the product thickness of the heat exchanger. Can be done.

38 is a perspective view illustrating a left and right flow unit according to an embodiment of the present invention.

In any one of the second to fourth embodiments, at least one slide block 91 facing up and down is provided in order to allow the lateral flow movement of the welding unit 4 to be performed and the slide block ( A pressurizing unit 2 and a welding unit 4 are connected to a 91, and a slide rail portion 92 is provided to be connected to the slide block 91 and to support the slide block 91 to be slidable. Both ends of the rail unit 92 may include a left and right flow unit 9 is provided with a flow restriction.

The left and right flow units 9 allow the welding unit 4 to flow freely in the left and right directions, so that the welding unit 4 is formed by the pressure close contact and rotational movement of the pressing unit rather than the moving speed in the welding direction of the welding apparatus 50, 100, 150. When the feed speed is fast or slow, the rotational driving speed of the rotary driving unit 23 of the pressurizing unit may be adjusted to achieve a moving speed in which the welding devices 50, 100, 150 and the welding unit 4 are synchronized with each other.

That is, when the welding direction movement speed of the welding device (50, 100, 150) is 12mm / s or the rotational speed of the pressing unit (2) is 10mm / s, the welding device (50, 100, 150) the movement speed in the welding direction is maintained Even if it proceeds, the pressurizing unit 2 and the welding unit 4 connected thereto are slowed down and the slide feed becomes slow, so that the flow restricting member 95 formed in the flow restricting portion opposite to the forward direction of the slide rail portion 92 is provided. Contact.

The flow limiting part is provided with a limit sensor 94 when the pressurizing unit 2 and the welding unit 4 connected thereto come into contact with each other to send a signal to the speed control unit controlling the rotational speed of the rotation driving unit 23. The pressurizing unit and the welding unit 4 connected thereto may increase the speed of the rotation driving unit so that the pressurizing unit and the welding unit 4 connected thereto may be moved back to the central portion of the left and right flow units 9.

On the contrary, when the welding direction movement speed of the welding device 50, 100, 150 is 10 mm / s or the rotation speed of the pressurizing unit 2 is 12 mm / s, the welding device 50, 100, 150 maintains the constant speed in the welding direction. Even if it proceeds, the pressurizing unit 2 and the welding unit 4 connected thereto become faster and the slide feed is speeded up so that the flow restricting member 95 formed in the forward flow restricting portion of the slide rail portion 92. Will come in contact with

In addition, the flow limiting unit is provided with a limit sensor 94 when the pressing unit 2 and the welding unit 4 connected thereto is in contact with the speed control unit for controlling the rotational speed of the rotary drive unit 23 By sending the pressing unit 2 and the welding unit 4 connected thereto is reduced the speed of the rotary drive 23 so that it can be moved back to the central portion of the left and right flow unit (9).

Accordingly, when the rotational speed control of the rotary drive unit 23 is achieved, the pressurizing unit 2 and the welding unit 4 connected thereto repeat the left and right flows generated by the speed difference in the left and right flow units 9. It is possible to achieve the speed of mutual synchronization gradually can be prevented that the pressing unit (2) and the welding unit (4) connected to it is out of step to the welding direction movement speed of the welding device (50, 100, 150).

The left and right flow units 9 may further include a locking device that integrates the base unit 1 and the left and right flow units 9 and prevents the flow of the pressurizing unit 2 and the welding unit 4. .

The locking device is a type in which fixed cylinders 97a and 97b are attached to two brackets 93a and 93b respectively connected to the flow restriction plate 93 of the flow restriction part. The fixed cylinders 97a and 97b are attached by fasteners so that the cylinder rods face each other.

Fixed rods are connected to the rods of the fixed cylinders 97a and 97b. The fixing rod presses the fixing plate 96 attached to the base unit 1 in the left and right direction by the forward movement of the rod. Thus, the base unit 1 is pressed and fixed.

Accordingly, the base unit 1 and the left and right flow units 9 can be integrated and can be prevented from shaking during the movement of the welding apparatus 50, 100, or 150. It is also possible to return the base unit 1 to the origin of the left and right flows of the left and right flow units 9.

That is, the locking device reaches the end point of the welding device (50, 100, 150) in each welding section of the laminated structure when the welding operation is composed of one or more welding sections, such as when the start point and the end point are stacked in succession When the welding is completed, the center portion of the welded torch portion moved by moving to the left and right at an arbitrary position in each welding section is returned to the same locked position every time and returned to the origin point of the left and right flow. The center of the welding torch moved to the flow origin when moving to the next welding section continuously moves to the same starting point for each welding section so that the precise welding start position is uniformly managed in each consecutive welding section. To improve the accuracy of the continuous welding operation.

The welding apparatus described above may not be limitedly applied to the configuration and method of the above-described embodiments, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications may be made. It may be.

Claims (40)

A movable base unit;
A pressurizing unit connected to the base unit and pressurizing the mutually overlapping plate-shaped welding objects in the superimposed direction to closely contact the ends of the welding objects, and at the same time, carrying out a front-rear direction guide of the end surface of the welding object;
A drive unit connected to the pressurizing unit and operable to pressurize the welding object;
A welding unit which is connected to the base unit and welds an end of the welding object in close contact with the pressing unit by a welding torch;
Including,
The pressing unit is provided with a protruding stopper for carrying out the front and rear direction guide of the end surface of the welding object,
The protruding stopper is in close contact with an end portion where the welding object is in contact with the welding unit to maintain a constant distance from the end of the welding object, and the front and rear direction contact with the end surface of the welding object and the front and rear direction guide are performed simultaneously. Welding device. delete The method of claim 1,
And a guide auxiliary roller provided at an end of the welding device and closely attached to an end to which the welding object comes into contact with each other to balance left and right sides of the welding unit and prevent tilting. The method of claim 1,
In the pressurizing unit,
A first pressure roller that rotates and a second pressure roller that is disposed to face and rotates to face the first pressure roller,
Welding device, characterized in that the welding object is pressurized by the first pressure roller and the second pressure roller. 5. The method of claim 4,
The first pressurized roller and the second pressurized roller are disc-shaped and are disposed to face each other including a diameter,
A protruding stopper is formed at a central portion of one of the first pressing roller and the second pressing roller in a direction facing each other.
The other of the first press roller or the second press roller, the depression receiving portion is formed to correspond to the protruding stopper is inserted is inserted into the protruding stopper,
Welding device, characterized in that the protruding stopper and the end of the welding object is in close contact. The method of claim 5,
Welding device, characterized in that the pressing unit is provided with at least one of the left and right of the welding unit. The method of claim 5,
Any one of the first pressing roller or the second pressing roller is formed with a pin portion, and the other side is formed with a receiving hole at a position corresponding to the pin portion,
Rotation driving unit for rotating any one of the first pressure roller or the second pressure roller is provided,
And the first pressing roller and the second pressing roller are interlocked by the rotation driving unit in a state in which the pin portion is coupled to the receiving hole of the pin. 5. The method of claim 4,
The drive unit includes a rotation plate portion that is rotatably coupled to the base unit, and a rotation drive portion that is coupled to the base unit and the rotation plate portion, respectively, to rotate the rotation plate portion,
The first pressure roller and the second pressure roller are respectively coupled to the rotation plate portion and the base unit,
And the first pressing roller and the second pressing roller pressurize the welding target object by rotating the rotating plate portion with respect to the base unit. 9. The method of claim 8,
In the first pressure roller and the second pressure roller,
Each of the rotating plate portion and the shaft portion extending from the center of the rotating plate portion is provided,
An accommodation casing for accommodating each shaft portion of the first pressure roller and the second pressure roller is coupled to the rotation plate portion and the base unit,
And each shaft portion is axially coupled to the receiving casing. 10. The method of claim 9,
An inner receiving casing integrally coupled with the shaft portion between at least one of the receiving casings and the shaft portion,
And the inner receiving casing is screwed to the receiving casing to adjust the position of the shaft portion. The method of claim 10,
A thrust member is interposed between the rotating plate and the receiving casing,
Welding device, characterized in that coupled between the shaft portion and the inner housing casing is interposed between the shaft rotation member. 9. The method of claim 8,
The rotation drive is made of a bidirectional cylinder,
The body of the cylinder is fixed to the rotation plate portion and one end of the cylinder rod is coupled to the base unit to be rotatable,
And the rotating plate portion is rotatable relative to the base unit by the movement of the cylinder rod. The method of claim 12,
The drive unit, the welding device, characterized in that coupled to the limiting member for limiting the forward movement of the other end of the cylinder rod. The method of claim 13,
The limiting member,
A receiving casing which is provided with a groove into which the other end of the cylinder rod is inserted and limits the distance that the cylinder rod can move from the bottom of the groove;
A support member for fixing the receiving casing to the body of the cylinder;
Adjusting member is formed to protrude on the bottom of the groove of the receiving casing to adjust the distance the cylinder rod is movable
Welded to the welding surface. 15. The method of claim 14,
The adjusting member,
And a screw member installed through the bottom of the groove of the receiving casing and adjusting the movable distance of the rod by tightening and loosening. The method of claim 1,
The welding unit
A welding torch portion for welding an end portion to which the welding object is in contact;
An angle adjusting unit connected to the welding torch unit and adjusting an angle of the welding torch unit;
A position adjusting part connected to the welding torch part and adjusting a position of the welding torch part
Welded to the welding surface. 17. The method of claim 16,
Wherein the angle-
An up and down angle adjustment part provided with a coupling chuck to which the welding torch part is coupled and rotating the coupling chuck in a vertical direction;
The left and right angle control unit connected to the vertical angle control unit to rotate the vertical angle control unit in the left and right directions
Welded to the welding surface. 18. The method of claim 17,
The position adjusting unit
A vertical position control unit connected to the coupling chuck and moving the coupling chuck in a vertical direction;
And a front and rear position adjusting unit connected to the vertical position adjusting unit and moving the vertical position adjusting unit in the front and rear directions. The method of claim 1,
And a suspension unit connected to the base unit and applying a force to the base unit in a direction opposite to the direction of gravity to cancel the influence of gravity applied to the base unit. 20. The method of claim 19,
The suspension unit,
And a cylinder connected to the base unit and urging the base unit in a direction opposite to the gravity direction. 21. The method of claim 20,
The cylinder is a bidirectional cylinder, one end of the rod of the cylinder is coupled to the base unit and the other end is a welding device, characterized in that the support member for supporting the flow of the cylinder rod is connected. The method of claim 21,
The support member,
A cap part in which a groove into which the other end of the cylinder is inserted is formed;
A fixing member for fixing the cap to the body of the cylinder;
An elastic member inserted into the cap to elastically support the other end of the cylinder
Welded to the welding surface. The method according to any one of claims 19 to 22,
The suspension unit is provided with a flow plate connected to the base unit and flows up and down, and further comprising a locking device for preventing the flow of the pressing unit by fixing the flow plate to the base unit . The method of claim 1,
And a positioning unit connected to the base unit to move the pressurizing unit to a position for bringing the welding object into close contact with the projecting stopper to come into close contact with an end portion of the welding object. Device. 25. The method of claim 24,
In the positioning unit,
A first cylinder and a second cylinder coupled to each other,
By the operation of either the first cylinder or the second cylinder, the protruding stopper is moved to a position for bringing the welding object into close contact,
And the protruding stopper is brought into close contact with an end to which the welding object comes into contact by operation of the other of the first cylinder or the second cylinder. 26. The method of claim 25,
And the positioning unit further comprises a level gauge indicating a horizontal state. The method of claim 1,
And a grinding unit connected to the base unit and mapping an end portion to be welded before welding is performed by the welding unit. 28. The method of claim 27,
The grinding unit
A grinder portion for finishing the end portion;
A vertical movement part connected to the grinder part and configured to reciprocate the grinder part up and down;
An angle adjusting part connected to the vertical motion part and adjusting an angle of the grinder part;
A forward and backward movement part connected to the vertical motion part to move the vertical motion part to closely contact or space the grinder part to an end of the welding object.
Welded to the welding surface. 29. The method of claim 28,
The grinder portion includes a finishing member in contact with an end portion of the welding object,
The finishing member is a welding device, characterized in that any one of a disk-shaped, cone-shaped or cylindrical. 29. The method of claim 28,
The vertical movement part is configured to transmit linear power to any one of the structures for reciprocating the screw and nut by reciprocating motion performed by a reciprocating motion by a pneumatic cylinder or a crank operation by a rotational motion or by right and left repetitive rotation by power. Welding apparatus characterized in that. The method according to any one of claims 27 to 30,
It further comprises a monitoring unit for monitoring the situation that the end of the welding object is ground and welded,
The monitoring unit
A first camera unit for monitoring a situation of execution of the grinding unit;
Second camera unit for monitoring the welding performance of the welding unit
Welded to the welding surface. The method of claim 31, wherein
The monitoring unit comprises:
And a motorized control unit capable of remotely driving the welding unit while monitoring through the first camera unit and the second camera unit. 19. The method of claim 18,
The welding torch is provided with an electrode for welding a tag,
A measuring unit measuring the voltage applied to the electrode to monitor in real time;
A motor unit formed in the front and rear position adjusting unit to generate a driving force;
An encoder unit attached to the motor unit;
A power transmission part connected to the motor part to convert the rotational motion of the motor part into a linear motion of the electrode;
If the voltage value of the measuring unit is different from the set voltage value, the control unit for driving the motor to correct the position of the electrode to match the set voltage value
Welding device characterized in that it further comprises an automatic correction device for the TIG welding electrode including a. A movable base unit;
A welding unit which is connected to the base unit and welds the end portions of the plate-shaped welding objects that overlap each other by a welding torch;
A pressurizing unit connected to the base unit and pressurizing the welding object in a superimposed direction to bring the ends into close contact with each other;
The pressurizing unit
A first drive roller part, a second drive roller part, which is rotatable and pressurizes the welding object in an up and down direction, respectively;
A guide part formed on the first driving roller part and the second driving roller part to be in close contact with an end portion at which the welding object is in contact with the welding line to follow the welding line;
Welding apparatus characterized in that it comprises a. A movable base unit;
A welding unit which is connected to the base unit and welds the end portions of the plate-shaped welding objects that overlap each other by a welding torch;
A pressurizing unit connected to the base unit and pressurizing the welding object in an overlapping direction to closely contact the ends;
A drive unit connected to the pressurizing unit and operable to pressurize the welding object;
It is provided with at least one pressurized auxiliary roller unit for further closely contacting the welding object in the vertical direction during welding,
The pressure assisting roller unit may include one or more pressure assisting roller parts that closely contact the welding object in the vertical direction when the pressure unit is in close contact with an end of the welding object;
Adjusting unit for moving forward and backward in the vertical direction, respectively, the pressing auxiliary roller portion;
And a slide part connected to the pressure auxiliary roller part and the control part, respectively, to allow the pressure auxiliary roller part to move forward and backward according to the adjustment of the control part. 36. The method of claim 35,
The adjusting part is a welding member, characterized in that any one of a screw member for screwing the slide unit to operate the slide portion in the vertical direction, or a cylinder for coupling the slide portion to operate the slide portion in the vertical direction. The method of claim 1,
And a support device connected to the welding device and allowing the welding device to be movable.
The support device is either a balancing device or a hoist crane device,
The support device is a welding device, characterized in that any one of a method having an automatic speed control device, a manual operation method or a method having a roller movable support. The method of claim 1,
And a moving unit connected to the base unit and having a driving unit capable of three-dimensional movement of the base unit and a control unit for controlling and manipulating the driving unit by synchronously interfacing with the driving unit.
The driving unit is any one of a device having an XYZ operation function by the articulated robot or CNC. The method of claim 38,
A straight guide rail that forms a linear movement structure,
A moving slider means installed to travel along the straight guide rail and fixing the articulated robot base;
Including a drive power transmission device connected to the moving slider means for transmitting power,
Welding device further comprises a slide unit for moving the articulated robot. The method of claim 1,
At least one slide block facing up and down is provided in order to allow the left and right flow movements of the welding unit,
The pressurizing unit and the welding unit are connected to the slide block,
A slide rail portion connected to the slide block and supporting the slide block to be slidable,
Both ends of the slide rail further includes a left and right flow unit which is provided with a flow restriction,
And the locking device is connected to the base unit to lock the base unit and the left and right flow unit to prevent flow of the welding unit.

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