WO2014126377A1 - Automatic stud welding system with centering function - Google Patents

Abstract

Disclosed is an automatic stud welding system with a centering function. The automatic stud welding system according to the present invention comprises an automatic alignment unit for centering a welding workpiece at a desired position, wherein the welding workpiece, centered by the automatic alignment unit, can be stud welded by any one of at least one welding robot capable of stud welding and a stud welding unit having an apparatus for performing a CNC control function, the apparatus being movable at least in the direction in which the X axis and the Y axis are perpendicular to each other by means of the CNC control function.

Description

Automatic stud welding system with centering

The present invention relates to an automatic stud welding system equipped with a centering function, and more particularly, an automatic alignment unit is provided so that it is possible to center a plate-shaped welding object to a desired position and automatically weld the stud to a desired welding point. The present invention relates to an automatic stud welding system equipped with a centering function which enables efficiency and process shortening of the stud welding operation.

Industrially, stud welding is widely used in heat exchanger applications. Particularly, in the plate heat exchanger, since the heat exchanger plates are stacked in a multi-layer structure, studs are welded on the heat exchanger heat exchanger plate as a means for maintaining gaps and lower deflections in order to provide a fluid passage having heat flow between the heat exchanger heat exchanger plates.

1 is a view showing a stud welding operation made in the heat transfer plate for plate heat exchanger according to the prior art. According to the prior art, the stud welding operation is made by hand using the stud hand gun (50). That is, the operator manually inserts the stud into the welding torch provided at the end of the stud hand gun 50, and then contacts the heat transfer plate perpendicularly to the spot to be welded, and sends a welding start signal by the trigger on / off switch. Generated and welded. At this time, in order to make the stud welding at the desired precise stud welding point, the stud hand gun 50 position jig device 60 for the stud hand gun provided with a perforated plate provided with the perforation hole 61 equal to the outer diameter of the welding torch portion. In this case, the jig device 60 is spaced above the welding object to attach the spacer 62 to the bottom of the jig in order to maintain a predetermined interval suitable for the work, and then placed on the upper surface of the welding object temporarily installed by Stud welding is performed by inserting the torch end of the stud hand gun 50 into the perforated plate hole 61.

Accordingly, when tens to hundreds of stud welding ends on one heat plate, remove the installed positional jig device 60 for the handgun and transfer the completed heat plate to manpower or hoist crane to transfer to the next process and work again. After the new heat sink was mounted, the same operation was repeated by reinstalling the right position jig device 60 for the handgun. Since one plate heat exchanger is made by stacking tens or hundreds of heat transfer plates, many repeating processes are required to produce a single product.

In this case, the distance between the longitudinal and lateral directions of the stud attachment point and the overall size are changed every time the type of product is changed. Therefore, the fixed position jig device 60 for hand gun must be newly manufactured and applied. Arc stud welding, which requires not only high current but also requires a high current in order to effectively weld the stud, is preferable, but the arc stud welding has a high safety risk due to the high current and the volume and weight of the stud hand gun 50 become high, resulting in a hand gun. Is not suitable for the situation is not used. Therefore, the stud welding of the hand gun method, which is mainly used, adopts a low current CD method, which causes a problem that the welding part of the welding spot is easily released.

Therefore, the main object of the present invention is to save time and cost to make a separate handgun in-position jig device.

In addition, another object of the present invention is to improve the welding quality of the welded portion of the stud welded head and to increase the precision of the stud verticality.

In addition, another object of the present invention is to save the manpower required for welding work and to increase the efficiency of the stud welding work by reducing the welding time.

In addition, when the size of the welding object is less than half of the base plate in the left and right areas, it is divided into two right and left work areas so that two welding objects can be simultaneously processed at each welding position to increase the efficiency of welding work. have.

In addition, it is to ensure the stud welding working conditions that can accommodate a variety of standard changes for the welding object having a variety of specifications according to the product-specific standard differences.

In addition, in the manufacturing process, when the bent part is formed at the end of the welding object and the flange surface is formed and placed on the flat base plate as it is, the bending part should be seated on the lower side due to the working process conditions, so that the bending area may be generated or inclined at the center of the welding object. This is to solve the problem that it cannot be fixed horizontally.

As a specific means for achieving the above object, the present invention provides a frame portion having a rectangular parallelepiped shape; A base plate fixedly installed parallel to the upper surface of the frame part; at least one rear of a cylinder supporting the rear end of the object to be welded by vertically installed at regular intervals on the right and left lines inside the upper surface of the rear end of the base plate; Rollers for fixed section support; At least one shear surface having a cylindrical shape disposed opposite to the rear end face fixed support roller with the welding position interposed therebetween, and pressed in front of the front end of the object to be welded in the direction of the rear end face fixed support roller Pressurized rollers; A roller for supporting left and right cross-sections vertically installed at the center of the base plate and having at least one cylindrical shape which is detachable; The left and right end support rollers are fixed to the left and right end end surfaces of the welding object so that the left and right end faces are fixed to each other so as to be in close contact with each other. At least two rollers for pressurizing the left and right end face in a cylindrical shape pressed tightly and conveyed in the direction of the left and right end supporting rollers; A linear reciprocating unit connected to an end of the shear surface and the left and right end pressure roller shafts and installed at a lower side of the shear surface and the left and right end pressure rollers to reciprocate the shear surface and the left and right end pressure rollers; And a driving unit connected to the linear reciprocating unit and configured to reciprocate the linear reciprocating unit. At least one stud on the welding object centered by the automatic alignment unit and the rear end fixed support roller and the left and right end support rollers and the front end pressurized roller and the left and right end pressurized roller provided in the automatic alignment unit comprising the It provides an automatic stud welding system with a centering function, characterized in that comprises a stud welding unit for welding fixed.

As described above, the automatic stud welding system equipped with the centering function of the present invention does not need to manufacture a separate positional jig device for hand gun, which can simplify the process and improve productivity according to cost and post-processing cost reduction. It works.

In addition, the automatic stud welding system equipped with the centering function of the present invention can improve the position and verticality of the welded stud and the arc current of the high current can be welded to improve the welding quality.

In addition, the automatic stud welding system with a centering function of the present invention has the effect of improving the competitiveness of the company through the repositioning of the welding manpower.

In addition, when the dimensions of the overall length of the welding object are less than half of the base plate as the left and right area, when the two left and right end support rollers are installed in the left and right end rollers for detachable tab hole provided in the center of the base plate, the welding position is left and right. Since the work is divided into two working areas and two welding objects are simultaneously processed at each welding position, the welding work can be efficiently performed.

In addition, when the size of the welding object exceeds the half point of the base plate in the left and right areas, the left and right end supporting rollers installed at the center are removed, and only the at least one left and right end supporting roller is used to press the rollers for the end face of the area using the welding object. By installing oppositely and fixedly supporting, there is an effect that welding operation of a single welding object that exceeds the half point of the base plate in the length and length of the base plate is possible.

In addition, when the size of the welding object reaches the right and left area beyond the half point of the base plate and reaches the range of the roller feed zone for pressurization of the left and right sections, any one of the rollers for the pressurization of the left and right sections is moved to the desired point for use as the roller for fixing the left and right sections. The fixed and the other side left and right end pressurizing roller is fixed to the welding object in the direction of the fixed left and right end pressurizing roller in one direction, so that the welding work of a single welding object with the length of the overall length reaching the left and right end pressurizing roller conveying range. There is an effect that becomes possible.

Accordingly, the embodiment of the roller is changed by changing the installation point of the left and right end support rollers or moving the left and right end pressurized rollers to a desired point and fixing them in a welding object having multiple specifications according to the product standard difference. Only a variety of standard changes can be accepted.

In addition, a base member is provided on the upper surface of the base plate to support the welding object to compensate for the lower gap generated between the welding object and the base plate when the welding object is seated, thereby preventing the inclination of the surface on which the stud is to be welded and the vertical degree. There is an effect that the stud welding can be secured.

Further effects are described throughout this specification.

1 is a perspective view showing a conventional technology.

2 is an overall perspective view showing an automatic stud welding system with a centering function according to a first embodiment of the present invention.

3 is a partially cut away perspective view showing an automatic stud welding system with a centering function showing another form of the first embodiment of the present invention.

4 is a perspective view in which the automatic alignment unit according to the present invention is embodied.

5 is a perspective view of the frame portion in accordance with the present invention.

6 is a schematic diagram showing the operation of the automatic alignment unit according to the present invention.

7 is a plan view in which the holding member according to the present invention is embodied.

8 is a cross-sectional view of the roller cut along the line AA of FIG.

Figure 9 is a perspective view of a concrete reciprocating linear motion portion according to the present invention.

10 is an exploded perspective view showing the assembly form of FIG.

11 is a perspective view of the driving unit in accordance with the present invention.

12 is a perspective view showing a state in which the driving unit according to the present invention is installed.

Figure 13 is a perspective view showing another form of the linear reciprocating motion unit according to the present invention.

14 is a perspective view showing a first modification of the drive unit according to the present invention.

15 is a perspective view showing a second modification of the drive unit according to the present invention.

Figure 16 is a block diagram showing a working process according to the present invention.

Fig. 17 is an overall perspective view showing an automatic stud welding system with a centering function according to a second embodiment of the present invention.

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

First, in the present specification, the vertical direction means an up and down direction under the influence of gravity, and the horizontal direction means a direction orthogonal to the vertical direction. In the following, the left and right directions or the lateral directions refer to the X-axis as the direction shown in the drawing from left to right in the horizontal direction, and the front-rear direction or the longitudinal direction means the Y-axis as a direction closer to or away from the left and right directions.

Also, the singular forms in the present specification include plural forms unless the context clearly indicates otherwise.

In addition, the terms or words used in the specification and claims are not to be limited to the common or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain their invention in the best way. On the basis of the principle that the present invention should be interpreted as meanings and concepts corresponding to the technical idea of the present invention.

Figure 2 is a perspective view showing an automatic stud welding system with a centering function according to a first embodiment of the present invention. The automatic stud welding system with a centering function according to the first embodiment of the present invention includes a stud welding unit having an automatic alignment unit 10 and a stud welding robot 140.

2 to 3, the automatic alignment unit 10 includes a base plate 200, a frame portion, a front face roller 111A (A roller), a rear face fixed support roller 112A ( B roller), left end press roller 110B (C roller), right end press roller 110A (D roller), left and right end support roller 112B (EC roller, ED roller), holding member 240 , 250) and the opening and closing portion 130 is included.

According to the automatic alignment unit 10, the left end face pressing roller 110B (C roller) is disposed to face each other with the welding position therebetween, and is transferred to the left and right end supporting rollers 112B (EC roller). The right end pressing roller 110A (D roller) is conveyed with respect to the left and right end supporting rollers 112B (ED roller) and at the same time the front pressing roller 111A (A roller) is the rear end surface. The welding object 190 is fixed to the fixed support rollers 112A (B roller) by pressing each end of the welding object 190 in close contact with each other and by the opposite roller at the point where the feeding of the roller is completed. The front end face and the left and right end faces of the are simultaneously held in close contact with each other so that they are centered in position and fixed to be welded at the centered position as described above.

Then, the stud welding unit equipped with the stud welding robot 140 with respect to the welding object 190 centered and aligned by the automatic alignment unit 10 to the predetermined welding position is repeated at the correct welding position. Stud welding can be performed.

Referring to Figure 4, the automatic alignment unit 10 is provided with a frame portion of a rectangular parallelepiped consisting of a support post 285, longitudinal support and transverse support (280A, 280B, 280C, 280D, 400A, 400B) On the upper surface of the frame part, the long hole 210 through which the front and rear rollers 110A, 110B, and 111A can pass, the rear roller fixing support 112A, and the rollers 112B supporting the left and right sections are fixed. A base plate 200 having a plurality of detachable tab hole parts 230A and 230B, which may be provided, is provided, and the upper portion of the base plate 200 has a predetermined height inside the stepped bent part 190A of the welding object. Holding members 240 and 250 are spaced apart from the base plate 200 so as to be maintained at the base plate 200, and the pressurizing roller feed cart 410 is seated at the lower portion of the base plate 200 to perform a linear reciprocating motion. Straight line The inner member 400 is provided and the linear guide member 400 is seated on the pressurizing roller feed cart 410 and the front and left and right shear surfaces of the welding target on the seated pressurized roller feed cart 410. Cross section press rollers (110A, 110B, 111A) is installed is provided with a linear reciprocating section for the shear surface and the left and right cross section press rollers (110A, 110B, 111A) to form a linear reciprocating movement structure and the pressurized roller transport It is connected to the cylinder fixing bracket 680 of the trolley 410 is provided with a drive unit including a drive cylinder 730 for forward-actuating the pressurized roller feed cart 410 and the outer end longitudinal support and the horizontal support ( 280A, 280B, 280C, and 280D are provided with opening / closing portions 130 formed of valve means 131 and 132 for opening and closing the fluid passage means.

The front end pressure roller 111A (A roller), the rear end fixed support roller 112A (B roller), the left end pressure roller 110B (C roller), the right end pressure roller 110A ( D roller), installation position of the left and right end support rollers 112B (EC roller, ED roller) and the frame part and the base plate 200, the specifications of the various models are accommodated in accordance with the product standard to be produced The design should be carried out in consideration of production.

Referring to FIG. 5, the frame portion has one or more vertical supports 285 formed thereon, and the upper ends of the supports have longitudinal and transverse supports 280A, 280B, 280C, 280D, 400A, parallel to the ground, and fixed to each other. 400B) and the support and longitudinal support and the cross support (280A, 280B, 280C, 280D, 285, 400A, 400B) are composed of a U-shaped channel welded assembly structure as in this embodiment, or, for example, It can be composed of a welded assembly structure of structural steel such as pipes, rods, square iron, square iron bending member.

The frame portion is preferably adjusted to be horizontal when installing the frame portion in order to ensure the verticality of the stud 191 to be welded.

Thus, in order to fix the frame to the ground and to allow the longitudinal support and the horizontal support (400A, 400B) to be horizontal to the ground, the lower end of each vertical support is provided with a steel plate (300). The steel plate 300 is provided with a penetrating fixing hole 300B and a tab hole portion 300A. When the steel plate 300 is inserted through the horizontal adjusting bolt through the tab hole portion 300A, the end of the horizontal adjusting bolt protrudes in the ground direction. When the protruding end is seated on the groove washer groove on the ground and is supported, when the horizontal adjustment bolt is tightened and released, the tilt of the frame portion is adjusted in one direction to adjust the upper end surface of the frame portion to the horizontal tilt. It is possible to penetrate the anchor bolt through the penetrating fixing hole 300B in a state where the upper end surface of the frame portion is horizontally adjusted, and the frame portion is fixed to the anchor hole of the ground by the passed anchor bolt.

The support of the frame portion is composed of a first longitudinal support 280A, a second longitudinal support 280B and a first transverse support 280C and a second transverse support 280D on the outer side, and an inner reinforcement longitudinal support 400A and a transverse portion on the inner side. Support 400B is further provided. In addition, a structural steel 290 may be further provided in a predetermined space between the support posts 285 and the support posts 285 of the frame part to reinforce the structural rigidity of the frame part.

In addition, the upper surface of the longitudinal support and the transverse support (400A, 400B) of the frame portion is padded on the upper surface of the longitudinal support and the transverse support (400A, 400B) in parallel with the longitudinal support and the transverse support (400A, 400B) When the rear end fixed support roller 112A and the left and right end support roller shaft ends 380 protrude through the base plate 200, the screw holes 320A may accommodate the protruding end. A square metal material 320 provided may be further attached. When the upper reinforcing member 320 is further provided, structural stiffness of the frame portion is reinforced, and the rear end surface fixing support roller 112A and the left and right end supporting rollers 112B end portions 380 of the shaft portion are formed on the base plate ( 200 and the rear tabs 320A of the detachable tab hole portion 320A of the upper reinforcing member 320 are fixed to the rear end face fixing roller 112A and the left and right end supporting rollers 112B to face the welding object 190. I can support it more firmly.

The height of the support post 285 of the frame portion is formed to a height that can provide a workspace for the robot and a person to easily perform stud welding work at any position, and the overall shape of the automatic alignment unit 10 is welded. It is preferable to form a rectangular parallelepiped shape corresponding to the shape and shape of the object 190.

The plate-shaped metal material constituting the base plate 200 is installed on the upper surface integrated with the upper reinforcing member 320 which is padded on the upper surface of the horizontal support and the longitudinal support (400A, 400B), the inner frame of the rectangular parallelepiped shape. The welding is integrated to the base plate 200 so that the cylindrical shear surface and the left and right end pressure rollers 110A, 110B, and 111A reciprocally traverse and pass to the base plate 200. It is possible to accommodate a variety of specifications of the welding object 190 in the other direction from one side front end surface and one side left and right end surface of the object and adjust the operating range of the rollers 110A, 110B, 111A for the shear surface and the left and right end surfaces A long hole 210 is drilled to enable this and the long hole 210 presses the shear surface and the left and right cross sections from the bottom of the base plate 200 to the top thereof. Dragon rollers (110A, 110B, 111A) are projected vertically on the base plate 200, the welding object 190 can be transferred from the front to the rear or from the left and right end to the center portion to be centered and the base plate The rear end surface fixing support roller detachable tab hole portions 230B of the rear end surface fixing support of the welding object 190 are formed at a predetermined interval along a rear end edge upper surface inner side and a horizontal axis, and the base plate ( 200) A plurality of left and right end support rollers are installed at the central portion so that the left and right end support rollers 112B are moved as needed at predetermined intervals along the transverse axis of the points opposite to the left and right end pressure rollers 110A and 110B. Removable tab hole portion 230A is arranged.

Preferably, the base plate 200 uses a metal plate having a straightness and flatness, and is cut to be most suitable for stud welding for the top surface flatness of the base plate 200 after the integrated assembly fabrication is completed. It may be.

The base plate 200 may be made of a metal material, and according to working conditions, the base plate 200 may be provided with an insulator parallel plate material on the upper surface of the base plate 200 to improve the quality of stud welding. That is, when the studs 191 and the welding object 190 are made of stainless steel (SUS), the base plate (in order to further improve the quality of the stud welding and prevent the spark from being damaged due to the energization of the other side of the stud) 200) a parallel plate made of a back light or teflon material, which is an insulator, is additionally installed on the upper surface, and the welding object 190 is fixed on the additionally installed parallel plate, and then studs are insulated from the base plate 200. Can be welded.

 The long hole 210 accommodates the protruding shapes of the front end surface and the left and right end pressure rollers 110A, 110B, and 111A of the welding target, and the shear surface and the left and right end pressure roller 110A on the base plate 200. , 110A, 110B for the shear surface and the left and right cross-section pressurizing rollers from the pressurization start point of the pressurized rollers 110A, 110B, 111A to the pressurization end point so that the outer diameters of the rollers 110B, 111A can be accommodated. , 111A) is formed to include a flow space that does not interfere with the outer diameter, the long hole shape is drilled in the direction of the front end and left and right end surfaces of the welding object 190, respectively, the long hole 210 is the driving cylinder 730 It is formed so as not to interfere with the inner circumferential surface of the long hole 210 even after the movement from the maximum retreat point to the maximum advance point of the operating range of the range is completed.

Accordingly, the base plate 200 is formed such that the welding object 190 transferred by the shear surface pressing roller 111A is supported so as to face the shear surface pressing roller 111A. The rear end surface fixed support rollers, which are cylindrical in the rear end surface fixed support rollers 112A and the detachable tab hole portion 230B, which are formed in a plurality of at regular intervals in a predetermined line along the inner right and left lateral directions of the end edges. A plurality of 112As are installed in a straight line.

As an embodiment for supporting and fixing the rear end of the welding object 190 as well as the fixed position support by the rear end fixed support roller as well as forming a stopper member provided at a predetermined fixed point of the welding object 190 It can be achieved in place support fixing. That is, the rear end of the base plate 200, near the upper end of the rear end, the inner end of the rear end of the upper edge to the desired position capable of supporting the rear end of the welding object 190 by the shear surface pressing roller 111A A stopper member may be provided to directly support the rear end portion of the welding object 190 being pressed and conveyed.

The stopper member provides a structure for supporting the rear end surface of the welding object 190, thereby restricting the flow of the welding object 190 transferred by the close pressing of the shearing surface pressing roller 111A and performing a right angle correction or It provides a butt that makes a fixed and straight line correction. As a result, the welding object 190 is fixed and supported at a fixed position aligned in the front-rear direction by the close pressing contact between the stopper member and the shear surface pressing roller 111A. The stopper member may have any shape such as a bar shape, a quadrangular shape, a polygon shape, and a flat iron shape in the horizontal direction, as long as the stopper member can be supported against the rear end of the welding object 190.

In addition, the base plate 200 is formed so as to face the left and right end pressure rollers 110A and 110B so as to support the welding object 190 transferred by the left and right end pressure rollers 110A and 110B. A plurality of left and right end surface support rollers are formed such that the left and right end support rollers 112B are moved and installed at predetermined intervals along a horizontal axis of a point facing the left and right end pressure rollers 110A and 110B at a central portion thereof. A plurality of rollers for supporting the left and right end faces in a cylindrical shape are installed in the roller detachable tab hole portion 230A, or moved as necessary.

The left and right end supporting rollers 112B are fixed to the left and right end pressing rollers 110A and 110B when the welding object 190 is fixed to support the stud welding work in each of the left and right sections of the base plate 200. Two or more left and right end support rollers 112B are provided at the center of the base plate 200 so as to face each other.

Accordingly, the rear end surface fixed support rollers 112A and the left and right end portions are supported at the desired positions of the detachable tab hole portions 230A and 230B which are formed to face the shear surface and the left and right end pressure rollers 110A, 110B and 111A. When a plurality of end face support rollers 112B are installed by screwing, the other end face and the left and right end pressure rollers 110A and 110B are different from the rear end face fixed support rollers 112A and the left and right end support rollers 112B. By the pressing of the 111A), the welding object 190 is forward-advanced simultaneously in the left and right and front and rear directions on the base plate 200 to be fixed in close contact with the desired position at the same time to complete the centering.

On the other hand, if the end of the welding object as a welding object 190 of the sun stud post-bending process is not bent at a certain angle and is flat, there is a predetermined distance between the welding object 190 and the base plate 200. Since it is not possible to be in close contact with the upper surface of the base plate 200, so that it does not need the holding member 240, 250 for supporting the welding object spaced upwards, and thus the holding member 240, 250 not attached state Furnace stud welding can be performed.

In the stud welding, the earth clamp does not cover the contact end surface when the frame part and the base plate 200 are made of a metal material, but an insulated parallel plate material is additionally installed on the upper surface of the base plate 200 so that the parallel plate material is provided. When the welding object 190 is mounted on the upper portion, the earth clamp should be installed in direct contact with the welding object 190.

Plate heat exchanger is a product manufactured using No-Thread Stud type. In order to provide a fluid passage with heat flow between two heat transfer plates in the manufacturing process, the plate heat exchanger is bent to one side from the heat transfer surface of the rectangular plate to face the PAIR heat transfer plate. A process of welding and fixing the studs 191 (A type process) or first welding the studs 191 so as to have a pair of flange surfaces bent in the opposite direction and orthogonal to the heat transfer surfaces therein (bending the heat transfer plate) It can be made of a B-type process) and arranged to face the heat transfer plate manufactured by the above process is produced by stacking a plurality of heat transfer plate made by sealing the end portion.

That is, in the above process, the flange surface is first bent at a predetermined angle and the stud 191 is welded to the passage heat transfer surface on which the fluid flow occurs, and the stud 191 on the passage heat transfer surface on which the fluid flow occurs first. There is a case of a process of manufacturing a welding process and then bending the flange surface at an angle.

 First, in the process of bending the end portion of the welding object at a predetermined angle as described above (Type A process), a bending portion 190A stepped at the end of the welding object is formed by pressing or bending the end portion of the heat transfer plate. When the flange surface is formed and placed on the flat base plate 200 as it is, the bent portion 190A should be seated downward due to the working process conditions. Therefore, a bending area is generated or tilted horizontally in the center of the welding object 190. It may not be fixed and welding of the stud 191 standing upright with respect to the inclined welding object 190 may not be performed.

Accordingly, when the welding object 190 is seated on the upper surface of the base plate 200, the surface of the surface on which the stud 191 is to be welded is compensated by compensating for the lower gap generated between the welding object and the base plate 200. In order to prevent the load and to enable the stud welding to ensure the vertical degree, the holding members 240 and 250 that can support the welding object 190 are provided.

In order to space the welding object from the base plate 200, the holding members 240 and 250 are formed with a predetermined height, and the height of the holding member is equal to the step of the welding object. If lower, the height of the clamping member may be slightly higher than the bending step of the welding target in order to prevent it, because the lower surface of the base plate 200 may be inclined due to interference with the upper surface of the base plate 200 even when the welding target is seated on the clamping member. It is preferable to form so that the welding object is sufficiently spaced apart. For example, the height of the stepped bent portion (190A) is usually 6mm to 15mm of the swelling members (240, 250) installed in the lower portion to separate the welding object 190 from the base plate 200 The height is preferably about 20 mm.

The welding object 190 is supported on the left and right end pressure rollers 110A and 110B in the holding members 240 and 250 fixed to the upper surface of the base plate 200 and supporting the welding object from below. The clamping member 240 (type A) is installed orthogonally to the left and right directions, while the clamping member 250 (type B) that supports the welding object 190 with respect to the shear surface direction pressing roller is installed perpendicular to the front and rear directions. Can be. That is, both end directions of the left and right end surface direction holding members 240 are formed in the front and rear directions, while both end directions of the front end surface direction holding members 250 are formed in the left and right directions.

In the present embodiment, the installation direction of the retaining members 240 and 250 has both end directions formed in the front and rear directions in the left and right end surface directions in the present embodiment, while the both end directions of the front end members in the front end directions 250 are formed. Although formed in the left and right direction, the installation position and the direction of the end of the holding member 240, 250 is not limited.

That is, the holding member (240, 250) and the front and the left and right end of the roller passing through the hole point 210 and the rear end fixed support roller (112A) and the left and right end support roller (112B) installation point and The welding object 190 may be detached at a desired position of the base plate 200 so that the welding object 190 is supported evenly and parallelly by avoiding toward the inside of the bent flange surface end surface of the welding object.

To this end, the tapping member detachable tab hole parts 220A and 220B which are tapping to be detachable from the base plate 200 are formed in consideration of the position of the welding target, and the clamping member 240 and 250 are fixed to the threaded hole by using fastening means such as bolts. Bolts for forming a penetrating hole in the holding members 240 and 250 and concealing the bolt heads exposed after fastening. The head buried portion 272 may be placed and tightened to prevent interference with the welding object 190.

In the front end surface direction holding member 250 of the welding object is formed along the full length direction of the outer end of the lower surface of the holding member has a thin plate extending portion 276 extending horizontally to the base plate 200 A long hole 270 is formed in the thin plate extension part 276 to be fixed to the tab member detachable tab hole part 220B through a fastening means interposed in the long hole 270.

Meanwhile, an outer diameter of the shear surface pressing roller 111A is accommodated in a center portion of the front end face sticking member thin plate extension part 276 at a right angle to the front end face of the front face bottom sticking member in order to provide a flowable margin. It has a long hole (275) having one side is opened, the front end roller 111A can pass through the opening of the long hole (275), the one side is opened, the one side of the long hole (275) The other side of the inlet opening is provided with a circular arc surface 275A which is in close contact with the outer diameter of the shear surface pressing roller is regulated by the long hole circular arc surface 275A of the extension portion of the shear surface pressing roller 111A Passage may be regulated.

Here, the circular arc surface 275A of the front end direction stopper-type retaining member 277 in which the extension part is integrated must be fixed in accordance with the position of the front end surface of the welding object so that the shear surface pressing roller 111A is fixed. The arc surface 275A which is a stopper means by closely pressing the welding object 190 in the direction of the rear end surface fixed support roller 112A to be in close contact with the open long arc surface 275A of the extension portion of the holding member. It is regulated by the pressure of the drive cylinder 730 can provide a fluid pressure of more than the base material bending strength to prevent the end of the welding object is broken deformation.

Therefore, it functions as a stopper means for regulating the flow of the shearing roller 111A in the shearing direction direction, and integrally provided with a stiffening member for supporting the welding object 190 spaced apart from the base plate 200. The front end surface direction stopper type | mold member 277 of the heterogeneous function provided is provided.

However, even when a plurality of the front end surface directional members 250 are provided on the base plate 200, the front end surface directional members 250 interfere with the shearing surface pressing roller 111A. It is not necessary to be provided with a stopper-type gripping member, and the front end-direction gall on the upper surface of the shear surface pressing roller 111A through which the front surface pressing roller 111A passes through the front surface pressing roller 111A. It is preferable that the stopper-type retaining member 277 is provided only at the point where the member 250 spans and interferes.

The thin plate extension part 271 which is formed along the full length direction of the outer end of the lower surface of the lower part of the pinch member and extends horizontally to the base plate 200 is also included in the left and right outermost pinch member of the left and right end face direction pinch members. A long hole 273 having one side having an outer diameter of the left and right end pressing roller 110B is accommodated in the thin plate extension of the left and right outermost holding members of the left and right end surface direction holding members. And a circular arc surface 273A through which the left and right end pressurizing rollers 110B pass through to the opened inlet of the long hole with one side opened, and the other side is provided with an arc surface 273A which is regulated by close contact with the outer diameter of the pressurizing roller. There is provided a left and right end surface direction stopper type claw member 278 of heterogeneous function in which a function as integrally is provided.

The front end surface direction holding member 250 of the welding object in the front and rear and left and right directions, the left and right end surface direction locking member 240 in the left and right direction, the roller support thin plate extension for pressing the shear surface of the welding object is provided The front end surface direction stopper type gripping member 277 is moved back and forth, and the left and right end surface direction stopper type grating members 278 having the thin plate extensions of the left and right outermost gross portions of the left and right end surface direction gripping members are left and right, that is, the inner outer side. As a result, the movable member detachable tab hole parts 220A and 220B can be moved and installed in a desired position and direction.

That is, the left and right end face direction clamping member detachable tab hole parts 220A are formed at equal intervals in the left and right directions and the front and rear directions to fix the left and right end face direction clamping members 240 in the desired direction in the longitudinal and transverse directions. The holding member detachable tab hole portion 220A has an arrangement structure in which the center distance between the tab holes is the same in the longitudinal direction and the transverse direction.

On the contrary, when a step is required at the intermediate point between the detachable tab hole portions 220A and 220B, the predetermined fastening means is not the engaging hole of the front end face and the left and right end face direction clamping members, but the front end of the welding object. The coupling members 240 and 250 are coupled to the coupling member detachable tab hole portions 220A and 220B through the long holes 270 and 274 formed in the side surface and the left and right end surface direction coupling member thin plate extensions. The position of the retaining members 240 and 250 may be changed according to the guidance of the long holes 270 and 274 within a range regulated by the fastening means inserted into the detachable tab hole parts 220A and 220B and the long holes 270 and 274. As a result, additional fine adjustment is possible in the front, rear, and left and right directions, respectively.

On the other hand, as another form of the clamping member fastening means of the present embodiment is not detached through the tabbed member detachable tab hole portion 220A, 220B, the lower portion of the clamping member in contact with the upper surface of the base plate 200 A magnetic member 279 is attached to the groove portion 279A by an epoxy bonding means or the like with a groove portion 279A on the surface thereof, and the retaining member is desired on the base plate 200 of the metal material by the magnetic member 279. Allow it to be attached and detached in position. As a result, the thin plate extension parts 271 and 276 are not provided because they can be sucked and detached at the intermediate points of the tab member detachable tab hole parts 220A and 220B. In addition, the clamping member fastening means by the magnetic member 279 is excluded in the case of the stopper-type clamping members (277, 278).

Meanwhile, first, in order to maintain the gap between the plate heat exchanger fluid passage heating surface required for the fluid flow and to prevent the deflection of the central portion of the heating surface, welding is performed in the form of a matrix to maintain a constant distance between adjacent studs 191. Subsequently, in the case of manufacturing by bending the flange surface of the end portion of the heat transfer plate (B-type process), the end of the welding object is not stepped to maintain flatness as it is, and thus, between the welding object and the base plate 200. Since a predetermined interval does not exist, the base plate 200 may be in close contact with the upper surface of the base plate 200, and the stud welding operation may be performed while the holding member is removed.

Accordingly, in the case of the sun stud post bending process (type B process), stud welding may be performed on the base plate 200 or on a parallel plate which is an insulator additionally installed on the base plate 200 without installing the retaining member separately. In the case of the bending bending stud process (A type process), the stud welding member 240 and 250 supporting the welding object should be installed on the base plate 200 so that the welding object is balanced and the stud welding is performed. It becomes possible.

Figure 6 is a view showing the operation of the first embodiment of the automatic stud welding system with a centering function of the present invention. Referring to the drawings, the plurality of rear end face fixing rollers 112A may have a straight line along the left and right lateral axis inside the upper end edge of the rear end of the base plate 200 so as to be able to face the front end pressing roller 111A. The rear end surface fixed support rollers 112A are installed in the rear end surface fixed support roller detachable tab hole portions 230B formed at a plurality of predetermined intervals so as to support the rear end surface of the welding object, and pressurize the left and right cross sections. Left and right end support rollers 112B at predetermined intervals along the transverse axis of the point opposite to the left and right end pressure rollers 110A and 110B at the center portion of the base plate 200 so as to be opposed to the use rollers 110A and 100B. The left and right end support rollers 112B are installed in the left and right end support roller detachable tab hole portions 230A that are arranged in a large number so as to be installed as needed. For example, the left and right cross sections of the welding object may be supported.

As described above, the base plate 200 has fixed support roller detachable tab hole portions 230A and 230B on which the rear end surface fixed support rollers 112A and the left and right end surface support rollers 112B may be installed. Bar The fixed support roller detachable tab hole portions 230A and 230B are tapped so that the ends of the rear end fixed support roller 112A and the left and right end support rollers 112B are easily tightened and loosened by a screw structure. In order to enable the disassembly by way of, or in the case of the rear end fixed support roller 112A, the rear end fixed support roller shaft part 340 may be provided with a hole for fixing the nut. Accordingly, the rear end face fixing roller 112A and the left and right end supporting rollers 112B have the rear end surface and the left and right end supporting roller detachable tab hole portions 230A formed in a predetermined arrangement on the base plate 200. 230B) or in a desired position of the drilling hole.

On the other hand, the size of the plate-type heat exchanger heat exchanger plate is not noticeable in the front and rear direction on the base plate 200, but the standard deviation of each product in the left and right direction is large, the smaller heat transfer plate requires a narrower support interval In the case of a large heat transfer plate, since a wide support interval is required, the rear end fixed support roller 112A and the left and right end support rollers 112B correspond to the welding object 190 and the base plate 200. The arrangement structure formed at the then may be carried out by selecting and changing for each welding object or product specification at that time.

As described above, the heat transfer plate material of the plate heat exchanger does not stand out in the front and rear direction, so the size difference of the heat transfer plate does not stand out. It is possible to accommodate by the front end roller (111A) feed zone range, while the overall length in the left and right direction with a large standard deviation is outside the storage limit of the feed zone range of the left and right cross-sectional pressure rollers (110A, 110B) The left and right end support rollers 112B located in the center portion are installed to move in the direction of the left and right end pressure rollers 110A and 110B, respectively, according to the product, so as to transfer ranges of the left and right end pressure rollers 110A and 110B. Ensure close support.

Here, when two left and right end support rollers 112B are respectively installed in the left and right end support roller detachable tab hole portions 230A provided at the center of the base plate 200, the welding position is divided into two right and left work areas. And the work on the two welding objects 190 can be performed at the same time at each welding position can be carried out efficiently welding.

That is, when the size of the total length of the welding target object is less than half of the base plate 200 as the right and left area, welding work of the two welding objects is possible, and the left and right cross-sectional support rollers 112B installed at the center of the right and left The left and right end pressure rollers 110A in the state where the left and right end surfaces of the welding target object are positioned within the transport range of the left and right end pressure rollers 110A and 110B by further moving in the direction of the endurance rollers 110A and 110B, respectively. , 110B) and left and right end support rollers 112B

On the contrary, when the size of the welding object exceeds the half point of the base plate 200 in the left and right region, only a single welding object is allowed to be welded, and at least one left and right is removed by removing the left and right end supporting rollers 112B installed at the center. Only the cross-sectional support roller 112B is provided to face the rollers for pressurizing the end face of the area using the welding object and is fixed.

Furthermore, when the size of the welding object reaches the left and right end pressure rollers 110A and 110B in the conveying area range beyond the half point of the base plate 200 in the left and right areas, the left and right end pressure rollers 110A and 110B are used. In order to use one side as a roller for supporting the left and right end cross section fixed to the desired point and the other side left and right end press rollers (110A, 110B) is in close contact with the welding object 190 in the fixed left and right end cross-section press roller direction Fix it.

As described above, the method for fixing the left and right end pressure rollers 110A and 110B to a desired point within the operating range is to first fix the stopper-type clamping member to a desired position, and then the left and right end pressure rollers 110A, 110B and 111A. The drive cylinder 730 of the () is forward-actuated to closely contact the open long arc circular surface 273A of the extension portion, and closes the fluid flow by blocking the valve means 131 and 132 of the associated pressure side drive cylinder 730.

Referring to Figure 8 will be described in detail the structure of the rear end fixed support roller (112A) and the left and right end support roller (112B) in detail, first the shaft portion 340 is provided at the center of rotation of the roller and the shaft portion 340 At one end, a screw portion 380 is formed to be fastened and loosened to the fixed support roller detachable tab hole portions 230A and 230B of the base plate 200, and the formed other end faces parallel to the axial direction. A multi-sided portion 340A consisting of a pair of stepped walls or a polygonal wall is formed to facilitate the use of the tool when the rear end surface fixed support roller 112A is attached and detached.

When fixing the roller for the fixed support, the base plate 200 is screwed into the detachable hole in which the screw thread is formed in the detachable hole, and the screw threaded end of the shaft portion 340 is not fixedly installed or the end is not inserted into the base plate 200. An end portion 380 having a cross section fixed support roller 112A and a left and right end supported roller shaft portion 380 passing therethrough, forming a hole without a thread in an inner circumferential surface thereof, and a thread of the fixed support roller formed in the screwless hole. Insert the nut to tighten the nut.

The shaft portion 340 is provided with a roller casing 370 that is externally wound from the center, and a rotation member 360 is formed between the roller casing 370 and the shaft portion 340 so that the rotation of the roller casing can be easily performed. One or more interposed in the direction and in addition to the rotating member 360 is coupled to the shaft portion 340 is provided with a snap ring 350 to prevent the separation of the rotating member. The rotating member 360 may be formed of a member such as a ball bearing needle bearing or a bushing means to reduce rotational friction.

Accordingly, referring to FIG. 6, the rear end face fixed support roller 112A and the left and right end face support rollers 112B are opposed to each other, or the front end and left and right end pressure rollers 110A, 110B, and 111A are welded. The roller surface of the roller casing 370 is in close contact with the object 190 during transportation and receives a reaction of the welding object 190 about the shaft portion 340 to naturally rotate.

Accordingly, the rear end face fixing roller 112A and the left and right end supporting rollers 112B and the front end and left and right end pressing rollers 110A, 110B, and 111A vertically upright to the base plate 200 are disposed. The roller surface rotates naturally in both directions and can support the welding object.

The rear end surface fixed support roller 112A and the left and right end surface support rollers 112B are opposed to each other by the natural rotational operation, or the front and left and right end pressure rollers 110A, 110B, and 111A are welded objects 190. ) Tightly presses and prevents damage or deformation of the contacting end of the welding object 190 in the transfer process, and rotates the roller casing 370 around the central shaft portion 340 to transfer the welding object 190. At the time of the welding object 190 and the roller casing 370, the friction or resistance due to the reaction generated at the support point between the roller surface is canceled.

The shear surface and the left and right cross-sectional pressure rollers 110A, 110B, and 111A protrude from the lower portion of the base plate 200 to the upper surface through the long holes to press and transport the welding object 190 after being in close contact with each other. After the transfer, it is fixed at the position where the transfer is completed, and supports the end of the welding object together with the rear end surface fixed support rollers and the left and right end surface support rollers 112A and 112B so that the welding object 190 is tightly welded. .

The front and left and right end pressure rollers 110A, 110B, and 111A are structurally united to achieve the same configuration by unifying the rear end fixed support roller 112A and the left and right end support rollers 112B. It is desirable to operate efficiently by allowing cross-implementation.

In the arrangement structure of the front end and left and right end pressure rollers 110A, 110B, and 111A, the rear end fixed support rollers and the left and right end support rollers 112A and 112B are disposed in the left and right and front and rear directions, respectively. It is preferable that it is formed in consideration of the maximum transferable point of the transfer range of the drive unit for pressing and conveying the welding object to be in close contact. The shear surface and the left and right end pressure rollers (110A, 110B, 111A) are provided in one or more in each direction, and when pressed and conveyed in close contact with the welding object 190, the at least one shear surface and left and right end pressure rollers ( 110A, 110B, 111A can be operated simultaneously or at this time.

As described above, the front end surface and the left and right end pressure rollers 110A, 110B, and 111A for pressing and transporting the welding object are opposed to the rear end fixed support rollers and the left and right end support rollers 112A and 112B, respectively. Simultaneously transferred to the melting point position of the welding object is pressed by the front and left and right end pressure rollers 110A, 110B, 111A even if the welding object is twisted and seated on the base plate 200, a plurality of rear end surface fixed support The rear end surface is aligned in a straight line by the roller 112A, and at the same time, the left and right directions of the welding object are fixed to the left and right end support rollers 112B by the left and right end pressure rollers 110A and 110B. Since it is in close contact with each other, it is perpendicular to the rear end surface, and as a result, the welding object is formed on the base plate 200. It is fixedly supported a right angle correction, and is arranged in a fixed position without deviation in the points.

That is, even though the welding object 190 is pressed and supported by the roller surface, the resistance caused by the reaction generated at the support point of the welding object in the transfer process can be reduced by the natural rotation of the roller surface. Resistance to reactions delivered to the close contact point can be minimized.

9 to 10, a linear guide member 400 provided in the front, rear, left and right directions is provided below the base plate 200, and is installed in the linear guide member 400 to be reciprocated in the front, rear, left and right directions. A pressurizing roller feed cart 410 is provided, and the lower ends of the front and rear cross-section pressurizing rollers 110A and 100B are coupled to the upper portion of the body plate 500 of the pressurized roller feed cart 410 and pressurized. A lower portion of the body plate 500 of the roller feed cart 410 is provided with a cylinder fixing bracket 680 extending downward, so that a linear reciprocating part is provided to allow the driving cylinder rod 730A to be coupled thereto. A driving part including a driving cylinder 730 connected to the fixing bracket 680 is provided.

The linear guide member 400 is arranged to face the opening of the C-shaped channel when the longitudinal support or the horizontal support (280A, 280B, 280C, 280D, 400A, 400B) of the frame part is composed of the U-shaped channel. When arranged side by side, as well as a series of longitudinal or transverse guide member functions as well as the longitudinal support or transverse support (280A, 280B, 280C, 280D) of the frame portion to produce a function by using two functions as one member The utility can be improved by simplifying the material saving and construction.

However, the embodiment of the linear guide member 400 utilizing the frame portion of the U-shaped channel is not limited, and may be configured in various forms such as a slide using an LM guide, a slide using a rod material, and a slide using a driving method by a roller. Can be.

For example, referring to FIG. 13, the longitudinal support or transverse support 280A, 280B, 280C, 280D is installed in the pressurized roller feed cart 410 in the opposite gap between the C-shaped channel openings to allow reciprocating transfer. The linear guide member 770, which consists of a rod slide, attached to the lower surface of each of the linear guide members 770, and the slide member 771 which linearly reciprocates along the linear guide member 770 is installed on the linear guide member 770. By connecting and fixing the pressurizing roller feed cart 410 to the slide member 771, a slide structure of the pressurized roller feed cart 410 may be configured.

9, the pressurizing roller feed cart 410 is provided with a body plate 500 at a distance between the linear guide member 400 and the body plate 500 on the outside of the body plate 500. It is vertically extended from the end to the lower part and is integral with the body plate 500 and is provided with left and right side walls 500A each protruding downward to enable the mounting of the driving roller 640 of the pressurized roller feed cart. For the left and right side wall surface of the pressurized roller feed cart is formed long in each end direction of the left and right side wall (500A) so that one side is toward the inside of each end direction of the left and right side wall (500A), the other side is the left and right side wall A long hole 510 is provided which is opened outwardly in each end direction of 500A, and the inner surface of the left and right side walls 500A is a thin plate and both ends in the long axis direction are arc-shaped. At both ends, two coupling holes 660A are formed at predetermined intervals, and spaced apart prevention members 660 interposed between the two driving roller coupling shaft members 650 in the same direction are provided at the same time. The member 650 faces the driving roller 640 to the outside of the left and right sidewalls 500A in the state of sequentially interposing the driving roller 640 and the first nut 645, and the driving roller coupling shaft member 650. The threaded portion of the left and right sidewalls 500A of the body plate is directed toward the inner side of the left and right sidewalls 500A so that one side of the left and right sidewalls of the left and right sidewalls 500A and the other side of the left and right sidewalls 500A, respectively. After inserting into the long hole 510 which is open toward the end in the end direction of the coupling member 660A of the separation prevention member 660 provided to enter the shaft member 650 screw portion and fixed by the second nut 670 do.

The driving roller 640 is formed corresponding to the inner angle of the U-shaped inner structure of the linear guide member 400, but the linear guide member is installed in the linear guide member 400 in contact with the rolling motion. When the rolling portion of the 400 is inclined as a U-shaped internal structure, the rotational driving roller 640 is formed in a tapered shape of the upper and lower light beams so that the U-shaped interior of the linear guide member 400 during the rotary motion. The contact is made along the inner angle of the cloud, which is the inclined inner wall of the structure, so that the driving motion is smoothly made, and the stepped portion 641 extending from the outer edge of the driving roller 640 is provided to face the 11-shaped The roller corresponds to the opposite end of the linear guide member 400 to prevent the left and right flow of the pressure roller feed cart 410 is prevented and the drive roller coupling shaft The member 650 forms a structure in which the member 650 is prevented from contacting the vertical inner wall surface of the U-shaped interior.

On the other hand, the separation preventing member 660 is a thin plate and both ends in the long axis direction is arc-shaped track shape and two coupling holes (660A) are formed at predetermined intervals at both ends, respectively interposing the drive roller coupling shaft member 650 at the same time. By combining the drive roller coupling shaft member 650 is seated on the rail to prevent the spaced apart from each other in the open direction of the long hole 510 and regulates the center distance of the drive roller coupling shaft member 650 It plays a role.

The upper surface of the body plate 500 of the pressurizing roller feed cart 410 is formed with a coupling hole 500B of the shear end and the left and right end pressurizing roller ends, and the thread of the shaft portion of the front end and the left and right end pressurizing rollers. The formed lower end 380 is inserted and fixed by the fastening means through the washer 341A and the nut 341B or by tapping the coupling hole 500B, and then the shaft portion 340 of the pressing roller is closed. Can be directly threaded

Meanwhile, the shear surfaces 110A, 110B, and 111A for pressing the shear surface and the left and right end surfaces side by side in parallel to the body plate 500 of the pressurizing roller feed cart 410 may be transferred while pressing the welding object 190 in close contact. A driving cylinder 730 is provided and a rod end bearing 740 is provided at the driving cylinder rod 730A to smoothly reciprocate the linear movement by responding to the torsion and the flow in the front, rear, left and right directions of the rod. A cylinder fixing bracket 680 is formed on the lower surface of the body plate 500 of the roller feed cart for coupling with the cylinder rod end bearing 740, and the cylinder fixing bracket coupling hole is formed in the cylinder fixing bracket 680. 685 is formed and the rod end bearing 740 of the cylinder rod end is fixed to the coupling hole 685.

Accordingly, the pressurizing roller feed cart installed in the left and right directions and connected to the rod end of the left and right drive cylinder 750 becomes a left and right reciprocating pressurized roller feed cart that forms a left and right reciprocating motion. The driving roller is installed in the front-rear direction and connected to the rod end of the front-rear driving cylinder 760 to form a front-rear reciprocating pressure roller-carrying balance that forms a forward-backward reciprocating motion.

Referring to FIG. 11, the support plates 700A and 700B are provided directly under the straight guide member 400, and the support plate holds between the support plates 700A and 700B and the straight guide member 400. Members 720A and 720B are laid so that the support plates 700A and 700B are provided below the support plate holding members 720A and 720B, and the support plates 700A and 700B fixed to the linear guide member 400. ) Are fixed to the front and rear end fixing brackets 710A and 710B provided at the front and rear ends of the driving cylinder 730 through fasteners, and the driving cylinders (710A and 710B) are mounted at the front and rear end fixing brackets 710A and 710B. The front and rear ends of the 730 are connected and fixed, and the rod 730A of the driving cylinder is connected to the cylinder rod coupling hole 685 provided in the cylinder fixing bracket 680 of the pressurizing roller feed cart. The driving unit for advancing the pressurized roller feed cart in the front and left and right cross-sectional directions of the welding target and repeating the retraction operation after the work is completed in the lower part of the groove 200 is provided.

In this embodiment, a rod end bearing 740 is provided at the end of the driving cylinder rod 730A, and the rod end bearing 740 and the cylinder rod coupling hole 685 are fixed using a fastening means, but a method of directly fastening It is also possible.

In this case, the driving cylinder 730 is preferably a pneumatic or hydraulic cylinder having a predetermined pneumatic or hydraulic fluid flow to achieve an appropriate standard for transferring the welding object.

On the other hand, the components of the base plate 200 is provided in the lower space so as not to protrude to the outside to avoid interference with the outside and provide a wider welding area the base plate 200 which is the receiving space If the lower portion of the portion is a limited area and the driving cylinders 730 must be accommodated in a limited space in many cases, it may inevitably have to be performed at the intersection to avoid interference.

To this end, if the height of the support plates (700A, 700B) and the height of the cylinder fixing bracket 680 of the pressurized roller feed bogie equally increases or decreases to be mounted to cross the drive cylinders (750, 760). Interference can be implemented by avoiding interference so that one direction is operated in the left and right directions and the other direction is crossed in the front and rear directions.

Referring to FIG. 12, first, the support brackets of the left and right drive cylinders 750 and the cylinder rod brackets of the left and right reciprocating pressurized roller feed carts are lowered so that the drive cylinders 750 and 760 may be crossed as described above. Support plate retaining members 720A and 720B of the front and rear drive cylinders are installed such that the left and right drive cylinders 750 are installed in the left and right directions and are orthogonal to the left and right drive cylinders 750. The front and rear drive cylinder support plates 700A and 700B are installed on the support plate holding members 720A and 720B, and the cylinder fixing bracket 680 of the front and rear reciprocating roller feed carts is raised to increase the When the cylinder rod bracket coupling hole 685 of the roller feed bore is formed and connected, the drive cylinders 750 and 760 that cross each other are formed. This interference can be avoided.

However, the fixing of the left and right and front and rear drive cylinders 750 and 760 is not necessarily limited to the fixing method, and the front and rear cross-section press rollers 110A, 110B and 111A may be driven to the welding position. The left and right and front and rear drive cylinders 750 and 760 may be freely deformed so that the height positions of the left and right drive cylinders 750 and 760 are orthogonal to the front and rear drive cylinders 760. .

Accordingly, when the rods of the left and right and front and rear drive cylinders 750 and 760 are operated backward in the front end and left and right end surface directions of the welding object, the pressurized roller feed cart 410 connected thereto is advanced. The rollers 110A, 110B, and 111A for pressurizing the cross section and the left and right cross sections are conveyed in a direction in which the welding object is tightly pressed and supported, and the rods of the left and right and front and rear drive cylinders 750 and 760 are front end and left and right of the welding object. When forward operation is performed in the opposite direction to the end surface is pushed roller feed cart 410 is connected to the reverse side and the shear surface and the left and right cross-sectional pressure rollers (110A, 110B, 111A) in the direction of releasing close support of the welding object Transferred.

Referring to FIG. 14, the first modification of the driving unit of the first embodiment includes a motor unit 780 that provides a driving force in the lower frame portion of the base plate 200, and a rotation shaft of the motor unit 780. A screw shaft 781 is attached to an end of the shear surface and the left and right cross-section pressurizing rollers 110A, 110B, and 111A in a conveying direction, and the end of the motor shaft portion and the screw shaft 781 are coupled to a coupling member 782. And the screw shaft 781 is screwed to the screw nut member 783 and the center of the shaft is maintained in the feed direction of the shear surface and the left and right end pressure rollers (110A, 110B, 111A) and rotate A plurality of support units 784 and 785 are installed in the conveying direction of the shearing surface 110A, 110B and 111A for providing the rotating member at the center and rotated to support the screw shaft 781. Being equipped The support unit 784 is installed at one end 784 of the screw shaft at a position of the end, and moved to a predetermined depth in the direction of the other end 785 to be fixed to the frame part, and at the bottom of the screw nut member 783. ) Is provided with a pressurized roller feed cart having a bracket 786 to which seating and fixing is mounted, and the shear rollers 110A, 110B, and 111A of the roller section 110A, 110B, and 111A on the upper side of the pressurized roller feed cart. The other end is coupled to the shear surface and the left and right end pressure roller (110A, 110B, 111A) is projected to the upper base plate 200, the press roller feed cart is a slide using a LM guide, a slide using a rod material And the screw shaft 781 is guided by the reciprocating linear reciprocating portion made of any one of the slide using the drive method by the roller The linear reciprocating motion is performed along the screw shaft 781 by the forward and reverse rotation of the motor unit 780 in the state of being screwed into the flow nut member 783, and thus the shear surface and the left and right end pressure rollers 110A and 110B. , 111A) may be made by the method of the screw to form a linear reciprocating motion in the shear surface and left and right cross-sectional direction of the welding target.

Or, referring to Figure 15, the second modification of the drive unit of the first embodiment in the conveying direction of the rollers 110A, 110B, 111A for pressing the shear surface and the left and right cross-section in the lower portion of the base plate 200 There is provided a gear gear 790 to be installed and a motor portion 791 is provided with a pinion gear 792 is attached to the end of the shaft portion to be geared to the rack gear 790 and the motor portion 791 is for pressurization The pinion gear 792 of the motor unit 791 is geared to the rack gear 790 and fixed to the lower portion of the roller feed cart 410, and the pinion regulating member 790A is provided at the end of the rack gear 790. Attached and the ends of the shear surface and the left and right end pressure rollers 110A, 110B, and 111A shaft portion 340 are coupled to the upper portion of the pressurized roller feed cart 410, the shear surface and the left and right end pressure rollers 110A. , 110B, 111A are on the base plate 200 A pressurized roller feed cart is provided to protrude, so that the pressurized roller feed cart is slid by using the LM guide, a slide using a rod material, and a slide using a roller driving method. The reciprocating linear reciprocating motion is performed by one linear reciprocating part consisting of one. It can be made in pinion gear way.

Referring to FIG. 5, the outer side transverse support and the longitudinal support 280A, 280B, 280C, and 280D may be provided with an opening / closing unit 130 to open or block the flow of fluid flowing into the driving cylinder 730.

The opening part is made of a valve means such as a valve for fluid control, such as a gate valve, a ball valve, from one side of the first valve means 131 is a fluid to maintain the flow flowing into the drive unit through the fluid passage means is introduced and In the process of flowing from the other side of the first valve means 131 to the one side of the second valve means 132 through the fluid passage means, flowing from the other side of the second valve means 132 toward the driving port direction of the drive unit The flow of the first valve means 131 or the second valve means 132 is configured to be opened and closed by at least one side.

The opening and closing unit 130 may function as a locking means for not temporarily using the pressurized rollers 110A, 110B, and 111A, which do not wish to operate.

In addition, when the specification of the overall length of the welding object 190 reaches the left and right end pressure rollers (110A, 110B) conveying range of the range, the roller for removing and opposing both the left and right end support rollers installed in the center of the base plate In order to use one of the left and right end pressure rollers as the left and right end support rollers, the stopper-type retaining member 278 is fixed to a desired position and the drive cylinder 730 of the one side left and right end pressure rollers is moved forward. The one side left and right end pressure rollers are in close contact with the open circular arc surface 273A of the extension part, and the fluid flowing into the one side left and right end pressure rollers 110A and 110B is blocked and fixed to a desired point, and the other left and right end faces Pressing rollers (110A, 110B) can be closely supported in the direction of the fixed one side left and right pressure rollers (110A, 110B). The one side left and right cross-sectional pressure roller side driving cylinder 730 may be further provided with a fluid control valve such as a gate valve, a ball valve.

Since the driving cylinder 730 is a double acting cylinder, the fluid control valves are installed in the fluid inflow passage side piping lines on the head side and the rod side, respectively.

In addition, the fluid control valve is preferably installed in the outer longitudinal support and the horizontal support (280A, 280B, 280C, 280D) for the convenience of valve operation because the drive cylinder is provided in the lower portion of the base plate.

When the fluid passage means of the drive cylinder 730 is provided with an acceleration control valve or a speed control valve, the linear reciprocating speed of the drive cylinder 730 can be adjusted, but the drive cylinder 730 is the base plate 200 The opening and closing portion made of the valve means for the convenience of adjusting the speed difference between the cylinders in order to support the welding object at the same time because the speed difference between each cylinder is not easy to adjust because it is provided in the lower portion ( 130 may be installed on the outer longitudinal support and the transverse support (280A, 280B, 280C, 280D) to adjust the linear reciprocating speed between opening and closing and to adjust the feeding speed between the cylinders.

Since the driving cylinder 730 is a double acting cylinder, the opening and closing portion 130 is installed in the fluid inflow passage side pipe line on the head side and the rod side, respectively.

Referring to FIG. 2, the stud welding unit equipped with the welding robot 140 may include a head unit 150 including the stud welding torch unit 151, a welding robot 140, a component supply device 160, and a stud welding machine 170. ), Cooling means 152 for cooling the weld torch body and the controller 180.

Conventionally, a stud hand gun jig device 60 made of a perforated plate having a perforated hole 61 is installed at a point where the stud 191 is to be welded, and the stud hand gun 50 is perforated in the perforated hole 61 of the perforated plate. The stud 191 is welded in place by inserting a welding torch, but the efficiency of the stud 191 is reduced due to the work of the stud welding work, and the verticality of the stud 191 is reduced, and there is a problem in the quality of the welded part. The cost of separately manufacturing the hand gun jig device 60 according to the type of product is required, so as to the stud spot on the welding object 190 aligned by the automatic alignment unit 10 as the welding robot 140 as in the present invention. Automatic stud with centering function to provide high quality welding quality while allowing the fixed stud 191 to be fixed at the desired position. A de welding system has been proposed.

The stud welding unit equipped with a known welding robot 140 is provided with at least one welding robot 140 and a welding head 150 having a stud welding torch 151 attached to an arm end of the welding robot. Stud supply device 160 for continuously supplying the stud 191 to the stud welding head 150, the stud welder 170 for adjusting the welding current and the cooling means for cooling the welding torch body overheated during the welding process And a controller 180 having a contact processing device such as a programmable logic controller (PLC) that generates a contact signal.

Although not shown, the head 150 is provided with a slide member to which the stud welding torch unit 151 is attached. When the arm tip of the welding robot 140 is positioned at a predetermined welding position, the slide member slides downward. And the fixed support protrusion of the slide end is pressed and fixed around the stud welding spot on the welding object 190, and the stud 191 supplied to the chuck of the welding torch unit 151 is in close contact with the welding object. After the welding current supplied by the stud welder 170 is energized, a small amount of space is separated by a rising slide, and an arc is generated, and the lower slide slides again so that the welded portion is joined.

The welding object 190 aligned by the automatic alignment unit 10 has a flatness and the rear end surface from the front and rear end surfaces and the left and right end surfaces at the position where the stud 191 is to be welded on the base plate 200. Fixed support rollers and left and right end support rollers 112A and 112B and shear surfaces and left and right end pressurized rollers 110A, 110B and 111A are closely supported and fixed by lowering members 240 and 250 from the bottom surface. The support is made to form a state in which a stud welding can be made to a predetermined position of the welding target 190, and the head portion 150 to which the stud welding torch unit 151 is attached is always vertical at the time of stud welding. More desirable stud welding quality can be obtained.

 Here, the controller 180 is connected to the stud welding machine 170, the stud automatic feeding device 160 and the automatic alignment unit 10 and the welding robot controller 140A, the welding start signal, component supply start signal, the The feed signal of the front and left and right end pressure rollers, the coolant supply signal through the coolant temperature sensing, and the contact control signal which is a predetermined external output signal to the welding robot controller 140A, respectively.

The welding current is supplied by the contact control signal, the stud 191 is fed from the automatic stud feeder to the stud welding head by the stud feed tube, and an output signal is transmitted to the solenoid valve to supply fluid to the driving cylinder 730. The front and left and right end pressure rollers 110A, 110B, and 111A are advanced to support and fix the welding object seated on the automatic alignment unit 10, and thus the welding object 190 is moved. ) Is supported at the welding position, and the welding robot controller 140A receives the output signal and controls the program operation mode to repeatedly execute a program previously taught by the XYZ coordinate value, which is the position information of the welding spot to be welded to the stud. Generating and delivering a command to reversely rotate each axis motor of the welding robot 140 to the predetermined position taught by the welding furnace. An end of the arm of the bot 140 is moved, and a welding command is generated from the stud welder to the head portion 150 to which the stud welding torch unit 151 is attached at the position where the end of the arm of the welding robot 140 is moved. In response to the output signal of the stud welder, the slide portion of the head portion 150 with the stud welding torch portion 151 attached to the end of the welding robot 140 arm is slid down and supplied by the stud welder. After the welding current is energized, a small amount of space is separated by the rising slide to generate an arc, and the lower slide is operated again to join the welded portion by the arc, so that the head of the stud 191 is joined to the welding robot 140 of the arm. The stud 191 is continuously connected to the stud welding surface of the welding object 190 fixed by the automatic alignment unit 10 in the moved position of the end. It is in contact and welding process, thus discharging the welding Sat launch 151, coolant discharge line after the cooling water is supplied to the body through the cooling water line in accordance with the cooling water supply through a cooling water temperature detection signal.

When the welding robot 140 is made of a multi-joint industrial robot, one or more welding robots 140 are installed on the left and right so as to divide the sections on the automatic alignment unit so that work can be performed for each of the left and right welding areas. Each axial joint of the welding robot 140 can be taught to rotate back and forth to a desired position to precisely perform the stud welding operation.

When the control unit 180 is provided with a manually operated switch unit for outputting a contact control signal, which is the external output signal, respectively, first switch means for advancing the front and rear cross-section pressurizing rollers 110A, 110B, and 111A. And second switch means for driving the welding robot 140, respectively, and an output signal is transmitted to the solenoid valve by the operation of the first switch means to flow the fluid into the driving cylinder 730. The shear surface 110A, 110B, and 111A for forward and horizontal pressurizing rollers 110A, 110B, and 111A are advanced to support and fix the welding object seated on the automatic alignment unit 10, and the welding object 190 is supported and fixed at the welding position. When the support fixed position is confirmed by the operator, the welding robot controller 140A receives the output signal by the operation of the second switch means. Oh, each axis motor of the welding robot 140 to the predetermined position taught by generating and transmitting a control command of a program operation mode to repeatedly execute a program previously taught by the XYZ coordinate value that is the positional information of the welding spot to be welded to the stud. Is rotated forward and backward to move the end of the welding robot 140 arm, and the stud welding operation is started at the position where the end of the welding robot 140 arm is moved.

Referring to Fig. 16, the steps of the stud welding operation made according to the first embodiment by the above-described configuration will be described as follows.

For welding preparation work (S1) First, two stud welding robots 140 are provided. (S2)

Next, the size of the welding object 190 is determined by the worker. (S3)

Next, since the welding object 190 should be able to be tightly supported at the welding position on the base plate 200, the roller 112A for supporting the rear end surface of the base plate 200 is always fixed. (S4)

Next, the two left and right end support rollers 112B are installed side by side in the center detachable tab hole 230A with reference to the conveying range of the left and right end pressurized rollers 110A and 110B. The welding object is measured by the rollers 110A and 110B for pressurization of the left and right end faces, and the welding operation is divided into the left and right work areas and performed by referring to whether or not work is possible at the same time.

Here, when the base plate 200 is less than two quarters of the full length, the rollers 112B for supporting the left and right end surfaces of the central portion are additionally installed to work two or more in the left and right directions.

Next, it is checked by the operator whether the overall length of the welding object is within the range of the left and right cross-section pressurizing rollers in the opposite direction to the side pressurizer rollers used (S7).

Here, the total length of the welding object is greater than two-quarters of the total length of the base plate 200, but the welding object that is not in contact with the left and right end pressure rollers in the opposite direction to the side pressure roller to be used within the operating range. Only use one roller for pressurizing the cross-section, but select and install the left and right cross-section supporting roller tap hole portions 230A in accordance with the specifications of the welding object in the opposite direction of the pressurizing roller.

Subsequently, when the left and right end pressure rollers in the opposite direction to the side press rollers used by the overall length of the welding object enter the moving range, the left and right end surface supporting rollers 112B are removed (S9). Left and right end pressure rollers in the opposite direction to block the opening and closing portion 130 and to fix the left and right end surface stopper type stiffening member to work one welding object (S10).

Subsequently, in the case of the welding target 190 of the bending bending stud process, the clamping members 240 and 250 or the stopper- type clamping members 277 and 278 are fastened to the clamping member detachable tab hole portions 220A and 220B. It is fixed so that the welding object 190 can be supported in a state where the flatness is secured. (S11)

Next, the operator seats the welding object 190 on the base plate 200. (S12)

Next, the operator measures the supportable distance to determine whether the fixing of the welding object is possible by the pressurizing roller. (S13) When the support cannot be fixed, the left and right end supporting rollers ( Adjust the position of 112B) again (S14).

Next, the forward and backward driving cylinders 750 and 760 are moved forward and backward by switching the first switch means so that the front end and left and right end rollers 110A and 100B are simultaneously welded ( 190) to support and push forward after close contact. (S15)

Next, the front and rear end surfaces and the left and right sides of the welding object are formed by the front and rear cross-section pressing rollers 110A, 110B, and 111A, the rear end fixing roller 112A, and the left and right cross-section supporting rollers 112B. After the simultaneous close support in the end surface direction, the centering is completed, and it is confirmed by the operator whether the support fixed welding object is horizontal (S16).

If it is not horizontal, adjust the position of the ridges (S17).

Then, the stud welding head portion 150 of the welding robot arm end is moved to the taught predetermined position by switching the second switch on and off.

Then, the stud welding operation is started and the front and left and right end rollers 110A, 110B, 111A and the rear end fixed support roller 112A and the left and right end support rollers 112B are in close contact with each other. The stud 191 is welded to the stud spot coordinate point at the aligned position.

Next, when the stud welding operation is finished, the drive cylinder is reversed by forward / backward switching of the first switch means to closely support the front and rear rollers 110A, 110B, and 111A. Release the state (S18).

Next, it is checked whether the welding operation of the same standard should be repeated. (S19)

If iterative work is required to perform welding by replacing the welding object 190 in the above position. (S20)

Next, the stud is moved to the next step of the welded welding object 190 is completed, and the welding object of a different standard is installed to repeat the first process.

17 is a perspective view showing an automatic stud welding system with a centering function according to a second embodiment of the present invention.

The automatic stud welding system with a centering function according to the second embodiment of the present invention includes a stud welding unit having an automatic alignment unit 10 and a device for performing a CNC control function.

The automatic alignment unit 10 has the same configuration as the automatic stud welding system with a centering function according to the first embodiment.

In general, the welding robot 140 is a computer-controlled, multi-axial machine optimized and programmed to follow a predetermined path on the external shape of a three-dimensional object, such as an apparatus that performs a CNC control function for welding and fixing a plurality of studs at a specific position. It is necessary to have a dedicated unit and operate in combination.

Referring to FIG. 10, a stud welding unit equipped with a device for performing CNC control functions includes a stud welding torch unit 801, a head unit 800 having a stud welding torch unit, an X-direction driving drive unit 840, and an X rack pinion. Gears 850 and 860, X linear guide 870B, X guide block 870A, Y direction travel drive 825, Y screw shaft 820A, Y guide block 820B, Y drive frame 830, A stud welder, an automatic part feeder, cooling means for cooling the welding torch body, a CNC unit controller 895 and a control unit 896 on which a program is input and operated.

In the second embodiment, the cooling means for cooling the stud welder, the part automatic feeder and the weld torch body is in accordance with the first embodiment.

Referring to the drawings, when the Y drive frame 830 of the present invention travels along the X linear guide 870B in the X direction, the supports 280C and 280D in which the X-direction base 880 is in contact with the base plate 200. It is installed in parallel with a predetermined width on any one side of), the X linear guide 870B and the X rack gear 860 are installed side by side on the X direction base 880, one or more X guide block in the X linear guide 870A is inserted, the support plate 890 is installed on the X guide block 870A, and the Y drive frame 830 is installed on the support plate 890.

The Y drive frame 830 is spoken in a bridge shape with respect to the base plate 200, and an X-direction driving driver 840 is installed from the support plate 890 on the X guide block 870A. The X pinion gear 850 is spoken to the output shaft of the directional driving drive unit 840 to be connected to the X rack gear 860 so that the forward and reverse rotation of the X pinion gear 850 is engaged with the X rack gear 860 engaged with the X pinion gear 860. As a result, the vehicle reciprocates from one end to the other end in the X direction.

Meanwhile, the Y screw shaft 820A is installed in the Y direction parallel to the Y drive frame 830, and at least one Y guide block 820B is inserted into the Y screw shaft 820A, and the Y guide block ( The stud welding head portion 800 and the stud welding torch portion 801 are respectively disposed on the stud welding head portion 800 and the stud welding head portion 800 by dividing the work area into one or more regions by the 820B. It is installed in the block 820B, the Y screw driving shaft 820A is installed in the Y direction driving drive unit 825 is installed and coupled to the Y screw shaft 820A freely rotated by the Y direction driving drive unit 825. The Y-direction traveling drive unit 825 is rotated forward and backward to cause the stud welding torch unit 801 to reciprocate in the Y direction.

As a result, the head part 800 provided with the stud welding torch is reciprocated in the XY direction by the rack pinion gear and the guide means engaged by the normal and reverse rotation of the X-direction traveling driver 840 and the Y-direction traveling driver 825. And stud welding is performed.

On the other hand, when the cooling means for cooling the stud automatic feeder, the stud welder and the torch body is provided on the ground stud feed pipe, torch current supply line, refrigerant supply line to be connected to the stud welding head portion 800 This has to be extended for a long time, thereby increasing costs and reducing efficiency.

In order to solve this problem, the present invention preferably the Y drive frame which is spoken in the form of a bridge to the base plate 200 to facilitate the connection of the cooling means for cooling the stud automatic feeding device, the stud welder and the torch body 830 further includes an accommodating plate 835 protruding flat from the Y drive frame 830 in one direction, and the stud automatic feeding device, a stud welding machine, and a torch body are required on an upper surface of the accommodating plate 835. According to the proposed method is provided with one or more.

Accordingly, when the receiving plate 835 is provided with cooling means for cooling the stud automatic feeding device, the stud welding machine and the torch body on the upper surface, the Y driving frame 830 is transferred in the Y direction, thereby automatically supplying the stud feeding device. Is moved together with the moving stud welding head portion 800 so that the feeding of the stud 191 can be made at a shorter distance, reducing the loss in the torch current supply line, and the flow of the refrigerant is more It can be smooth.

As a result, the receiving plate 835 may be movable together with the moving stud welding head 800 to increase welding workability of the stud welding head 800.

The control unit 896 is connected to the CNC unit controller 895 and the stud welder and outputs a welding start signal to the stud welder to control the automatic stud feeder and the stud welding torch unit 801 by the output signal and the The CNC unit controller 895 converts a welding point of the welding object 190 into coordinate data so that the stud welding head 800 of the stud welding unit equipped with a device for performing the CNC control function is the CNC unit controller 895. It is moved to the program position according to the coordinate data converted by the receiving the parts from the automatic stud feeder at the position to find the stud welding spot and perform welding continuously.

The apparatus for performing the CNC control function may be provided with one or more stud welding torch unit 801 can be moved to a desired position to perform the stud welding operation with a high degree of freedom.

Accordingly, when the centering including the stud welding unit equipped with the apparatus for performing the CNC control function of the present invention is provided by the automatic stud welding system equipped with the function, the welding object is seated and centered by the automatic alignment unit 10. The same stud welding process is repeatedly performed by setting a device that performs a CNC control function in order to weld and fix a plurality of vertical studs 191 having desired integer straightness with respect to the centered welding object 190. As it can be performed, it is possible to simultaneously weld a plurality of welding objects 190 in the movable range for each of the one or more stud welding heads, as in the first embodiment, in a desired position.

Those skilled in the art will be able to make various modifications and adaptations within the scope of the present invention, and not only the claims of the present invention but all those having equivalent or equivalent modifications to the claims of the present invention. It belongs to the category of thought.

Claims (16)

1. A frame portion having a rectangular parallelepiped shape;

   A base plate fixed in parallel to an upper surface of the frame portion;

   At least one rear end surface fixed support roller having a cylindrical shape in which rollers are vertically installed at regular intervals on the inner side of the rear surface of the rear end of the base plate at regular intervals to support the rear end of the welding object;

   At least one shear surface having a cylindrical shape disposed opposite to the rear end face fixed support roller with the welding position interposed therebetween, and pressed in front of the front end of the object to be welded in the direction of the rear end face fixed support roller Pressurized rollers;

   A roller for supporting left and right cross-sections vertically installed at the center of the base plate and having at least one cylindrical shape which is detachable;

   The left and right end support rollers are fixed to the left and right end end surfaces of the welding object so that the left and right end faces are fixed to each other so as to be in close contact with each other. At least two rollers for pressurizing the left and right end face in a cylindrical shape pressed tightly and conveyed in the direction of the left and right end supporting rollers;

   A linear reciprocating unit connected to an end of the shear surface and the left and right end pressure roller shafts and installed at a lower side of the shear surface and the left and right end pressure rollers to reciprocate the shear surface and the left and right end pressure rollers;

   And

   A driving unit connected to the linear reciprocating unit to reciprocate the linear reciprocating unit;

   With automatic alignment unit

   A stud welding unit for welding one or more studs to a welding object centered by a rear end fixed support roller and a left and right end support roller and a front end pressurized roller and a left and right end pressurized roller provided in the automatic alignment unit is provided.

   Automatic stud welding system having a centering function, characterized in that it is included.
2. The method of claim 1,

   When the size of the overall length of the welding object is less than half of the base plate as the left and right areas, the left and right end support rollers installed at the center are further moved in the direction of the left and right end pressurizing rollers, respectively, so that the feed zone of the left and right end pressurized rollers Support by the left and right end surface pressing rollers and the left and right end surface supporting rollers while the left and right end faces of the welding object are positioned within a range;

   When the specification of the overall length of the object to be welded exceeds the half point of the base plate to the left and right regions, the cross section of the region using the weld object using only the at least one left and right end supporting rollers installed at the center by removing the left and right end supporting rollers installed at the center. Installed opposite to the pressurizing roller to be fixedly supported;

   A detachable tab hole part, which is a plurality of tab hole parts arranged at predetermined intervals in the left and right directions from the center of the base plate, is further provided, and an end portion of the left and right end cross-sectional support roller shaft portion is removable at a desired position of the detachable tab hole part. Automatic stud welding system with centering function.
3. The method of claim 1,

   An automatic stud welding system with a centering function, characterized in that the base plate is further provided with a parallel plate insulated between the welding object and the base plate.
4. The method of claim 1,

   It is installed on the upper surface of the base plate,

   It accommodates the step of the lower end inner surface of the object to be welded so that the stepped end is maintained above the height not to interfere with the base plate, and the welding object is spaced apart from the base plate by more than the step of the inner bottom surface And

   The welding member is further provided to maintain the balance of the welding object,

   On the upper surface of the base plate

   The welding object is arranged at positions and intervals that can maintain the equilibrium is provided with a plurality of tack member detachable tab hole portion that can be attached and detached tack member

   It is possible to freely arrange the tack member in accordance with the size and size of the welding object, the tack member detachable tab hole portion arranged in the arrangement,

   In order to fix the clamping member in the desired direction in the longitudinal direction and the lateral direction, the center distance between the detachable tab hole portions forms the same arrangement structure in the longitudinal direction and the transverse direction,

   The stud member is provided with a centering function, characterized in that the bolt head buried portion for concealing the exposed bolt head is fastened by the bolt member to the base plate is provided with an automatic stud welding system.
5. The method of claim 4, wherein

   It extends horizontally from the lower surface full-length end of the holding member to the thin plate is formed integrally with the holding member to form a thin plate extension,

   One or more long holes are arranged in the thin plate extension part in a direction perpendicular to the full length end so as to be coupled to the tab member detachable tab hole part of the base plate, and can be moved back and forth and left and right,

   The outer diameters of the front end surface and the left and right end face direction clamping member thin plate extension portion center portion of the front end surface and the left and right end face direction clamping member lower surface full length end in the right angle direction of the shear surface and the left and right end face pressing roller Long holes having one side opened to have a flowable margin,

   The shear surface and the left and right cross-section pressing rollers are allowed to pass through the opened inlet of the long hole opened at one side,

   On the other side of the inlet opening of the long hole in which the one side is opened, the outer surface of the shear surface and the left and right end pressure roller is in close contact with the circular arc surface to restrict the passage further,

   The holding member is a stopper-type holding member which is integrally provided with a function of regulating the passage of the shear surface and the left and right end pressurizing rollers by the open long circular arc surface of the thin plate extension and a function to keep the welding object in balance. Automatic stud welding system with a centering function, characterized in that the.
6. The method of claim 4, wherein

   An auto stud welding system having a centering function, characterized in that a groove is provided on the lower surface of the holding member and a magnetic member is installed in the groove.
7. The method of claim 1,

   The front end and the left and right end pressure rollers and the rear end fixed support rollers and the left and right end support rollers,

   An axis forming a rotation center;

   A polygonal portion provided at one end of the shaft portion to facilitate gripping of the tool;

   A screw thread formed at the other end of the shaft portion to enable tightening and loosening of the detachable tab hole portion;

   A roller casing which is wound around the shaft and rotates about the shaft;

   And

   A rotating member interposed between the shaft portion and the roller casing;

   Automatic stud welding system with a centering function, characterized in that consisting of.
8. The method of claim 1,

   The base plate has an automatic stud welding system having a centering function, characterized in that the pressurizing roller is formed with a long hole through which protruding from the lower portion of the base plate to pass.
9. The method of claim 1,

   The linear reciprocating part,

   Straight guide members provided on the frame part and spaced apart from each other;

   A pressurizing roller feed cart which is coupled to an end of the front end surface and the left and right end pressure roller shafts on the body plate provided in the linear guide member and provided in the interval between the linear guide members and moves linearly along the linear guide member. ;

   A driving cylinder connected to the pressurized roller feed cart and reciprocally driving the pressurized roller feed cart;

   Including,

   The drive cylinder is cross-crossed so that one direction is operated in the left and right directions and the other one direction is installed in the front and rear directions,

   The driving unit cylinder rod coupling hole provided in the pressurized roller feed cart

   The cylinder rod end is connected to the cylinder,

   The cylinder front end and rear end fixing brackets are fixed to the support plates fixed to the linear guide member under the base plate, respectively.

   The frame portion further includes an opening and closing portion for opening and closing the fluid passage through which the fluid flowing into the drive unit flows,

   When the specification of the overall length of the welding object reaches the range of the roller feed zone for the left and right end face pressing, one side of the left and right end face pressing rollers is removed and opposed to the left and right end supporting rollers installed at the center of the base plate. In order to use as a cross-sectional support roller, a stopper-type stabilizing member having a function of regulating the passage of the shear surface and the left-right cross-section pressurizing roller and a function of keeping the welding object in equilibrium is fixed and installed at a desired position. One side of the left and right cross-section pressing roller is moved forward to operate the one side left and right cross-sectional pressing roller horizontally extending from the lower end of the stopper-type holding member to the thin plate is formed integrally with the stopper-type holding member On the open circular arc surface of the thin plate extension And mounting means for the valve to one side and then fixed to the left and right end surface pressing roller desired point to block the fluid flowing into close contact with the support which the other side the right and left cross-section for the pressure roller to the fixed left and right side cross-sectional direction of the pressing roller for

   It is further provided in the roller side drive cylinder for pressurizing the left and right sections,

   The straight guide member is an automatic stud welding system with a centering function, characterized in that the support forming the frame portion.
10. The method of claim 9,

    The pressurized roller feed cart,

    A body plate provided at an interval between the straight guide members;

    Left and right sidewalls extending vertically from the outer end of the body plate to the bottom to be integral with the body plate and to protrude downward;

    And

    Drive rollers installed on the left and right sidewalls and installed in the linear guide member to roll;

    Is made and

    On the left and right side walls of the pressurized roller feed cart

    It is formed long in each end direction of the left and right side walls

    One side is directed toward the inner end of each of the left and right side walls

    The other side is opened toward each end direction of the left and right side walls

    Long holes are provided,

    The driving roller of the pressurized roller feed cart,

    The shape corresponds to the inner angle of the rolling portion of the linear guide member,

    It is further provided with a stepped portion extending from the outer edge of the driving roller and in contact with the end surface of the linear guide member to prevent left and right flow,

    The driving roller of the pressurized roller feed cart,

    It is fixed by the roller coupling shaft member to enable the rotational movement in the long hole of the left and right side walls

    Four or more are built into the linear guide member,

    The pressurized roller transfer bogie is provided with an automatic stud welding system having a centering function, characterized in that it further comprises a gap preventing member for fixing the two through the drive roller coupling shaft member provided in the same direction at the same time.
11. The method of claim 1,

    The linear reciprocating part,

    Slide using LM guide, slide using rod material and slide using roller driving method

    Any one of

    The driving unit,

    A motor unit installed in the lower frame portion of the base plate to provide a driving force;

    A screw shaft connected to and fixed to an end portion of the rotating shaft of the motor unit in a feeding direction of a shearing surface and a roller for pressurizing left and right sections;

    A screw nut member threaded to the screw shaft;

    A support unit fixed to the screw shaft and installed directly at one end and moved to a predetermined depth at the other end to achieve a rotational movement;

    It is provided in the lower portion of the base plate is provided with a roller feed cart for pressing the screw nut member is seated fixed

    The other end of the front end surface and the left and right end of the roller shaft for pressing the roller is coupled to an upper portion of the pressurizing roller feed cart so that the pressurizing roller protrudes above the base plate.

    With the screw shaft screwed into the screw nut member

    The pressurized roller feed cart is guided by a linear reciprocating part made of any one of a slide using an LM guide, a slide using a rod material, and a slide using a driving method by a roller by a forward rotation of the motor unit. Automatic stud welding system with a centering function, characterized in that by the reciprocating screw method.
12. The method of claim 1,

    The linear reciprocating part,

    Slide using LM guide, slide using rod material and slide using roller driving method

    Any one of

    The driving unit

    Rec gear is installed in the conveying direction of the shear surface and the left and right end pressure roller in the lower portion of the base plate;

    A motor unit fixed to the lower portion of the roller feed cart for pressurization and having a pinion gear attached to an end portion of the shaft to be connected to the rack gear;

    A pinion gear geared to the rack gear and provided at an end portion of the shaft portion of the motor unit;

    A pressurizing roller feed cart installed at a lower portion of the motor unit and coupled to an end of the front end surface and the left and right cross-sectional pressurizing roller shafts;

    Is equipped with

    By the forward and reverse rotation of the motor unit, the pressurized roller feed cart is a linear reciprocating motion guided by a linear reciprocating part consisting of any one of a slide using an LM guide, a slide using a rod material, and a slide using a driving method by a roller. Automatic stud welding system with a centering function, characterized in that by the pinion gear system.
13. The method of claim 1,

    The stud welding unit

    At least one welding robot having a stud welding head portion;

    And

    CNC control function, characterized in that the stud welding head portion is provided perpendicular to the welding object aligned by the automatic alignment unit and the stud welding head portion is movable in at least X and Y axes perpendicular to each other by the CNC control function. Stud welding unit is provided with a device for performing;

    Automatic stud welding system with a centering function, characterized in that any one of.
14. The method of claim 13,

    The stud welding unit equipped with the apparatus for performing the CNC control function,

    It is further provided with a receiving plate which moves together with the stud welding head of the stud welding unit equipped with the apparatus for performing the CNC control function,

    In the storage plate,

    Automatic stud welding system equipped with a centering function, characterized in that at least any one of the automatic stud feeder, the stud welder and the cooling means for cooling the torch body.
15. The method of claim 1,

    An auto stud welding system having a centering function, characterized in that a stopper member is provided at the rear end of the base plate.
16. A frame portion having a rectangular parallelepiped shape;

    A base plate fixed in parallel to an upper surface of the frame portion;

    A stopper member provided at the rear end of the base plate;

    At least one shear surface pressurizing roller which is disposed to face the stopper member with a welding position therebetween and is installed vertically, and has a cylindrical shape for pressing the front end of the welding object tightly and transferring it in the direction of the stopper member;

    A roller for supporting left and right cross-sections vertically installed at the center of the base plate and having at least one cylindrical shape which is detachable;

    The left and right end support rollers are fixed to the left and right end end surfaces of the welding object so that the left and right end faces are fixed to each other so as to be in close contact with each other. At least two rollers for pressurizing the left and right end face in a cylindrical shape pressed tightly and conveyed in the direction of the left and right end supporting rollers;

    A linear reciprocating unit connected to an end of the shear surface and the left and right end pressure roller shafts and installed at a lower side of the shear surface and the left and right end pressure rollers to reciprocate the shear surface and the left and right end pressure rollers;

    And

    A driving unit connected to the linear reciprocating unit to reciprocate the linear reciprocating unit;

    With automatic alignment unit

    A stud welding unit for welding and fixing one or more studs to a welding object centered by the stopper member and the left and right end support rollers and the shear surface pressurized roller and the left and right end pressurized rollers provided in the automatic alignment unit

    Automatic stud welding system having a centering function, characterized in that it is included.

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