Automatic Welding Equipment

Abstract

The present invention relates to an automatic welding device, and more specifically, to an automatic welding device capable of a combined expandable configuration that allows for the selective use of a basic fixed welding gun method or a robotic arm welding method. The present invention, according to this invention, comprises: a main table (100) which is a space for welding work; a digitizer member (200) for path recognition and path coordinate acquisition regarding the shape of the joint of a welded workpiece; a main transfer member (300) for moving the main table (100) according to the path coordinates acquired through the digitizer member (200); and a welding work unit (400) positioned adjacent to the main table (100) for welding a welded workpiece.

Description

Technology Field

[0001] The present invention relates to an automatic welding device, and more specifically, to an automatic welding device capable of a combined expandable configuration that allows for the selective use of a basic fixed welding gun method or a robotic arm welding method. Background Technology

[0002] Generally, welding is a method of joining identical or dissimilar metal materials by heating and melting the joint to rearrange the atomic bonds of the two different materials, and includes arc welding and gas welding.

[0003] These types of welding are typically performed manually by workers using welding guns; however, manual welding is time-consuming, results vary depending on the welder's skill level, and pose risks such as burns to the human body due to high temperatures or welding spatter, fires caused by the ignition of flammable materials, and eye harm from strong visible light, infrared, or ultraviolet rays, leading to an emerging need for automatic welding machines.

[0004] Meanwhile, the automatic welding machine must identify the shape of the joint of the plate material, including the curved surface of the object, and since the machine must move according to the identified shape, detection or control such as sensors is required for this purpose.

[0005] However, conventionally, it was not possible to use both the welding gun method and the robotic arm welding method in a single device. Since most structures involved the welding gun moving directly in response to the shape of the joint while the workpiece remained stationary, the mechanism for operating the welding gun's movement was very complex. Furthermore, applying a robotic arm to address this increased the cost of the automated robot device. Additionally, as only the welding table was prepared, the processes of welding preparation and product return after completion were performed manually, leading to longer working times and significantly reduced productivity. Prior art literature

[0006] Korean Patent Publication No. 10-2693621 (Registered August 6, 2024) The problem to be solved

[0007] The present invention aims to solve the problems of the past by primarily using a fixed welding gun method and optionally combining a robotic arm welding method in a single device to enhance scalability.

[0008] In addition, the present invention aims to simplify the structure and lower the cost of the automatic robot device by performing welding while moving the table itself, on which the workpiece is fixed, in the X, Y, Z axes and rotational directions.

[0009] In addition, the present invention aims to enable the continuous performance of welding process operations by providing a table for preparing a welding object and a table for transporting the product after welding is completed. means of solving the problem

[0010] To solve this purpose, the present invention;

[0011] Main table, a space for welding work;

[0012] Digitizer member for path recognition and path coordinate acquisition regarding the joint shape of a weldment;

[0013] A main transfer member that moves the main table according to path coordinates obtained through the digitizer member;

[0014] An automatic welding device is provided, characterized by comprising a welding work unit positioned adjacent to the main table and welding a workpiece. Effects of the invention

[0015] According to the present invention, a fixed welding gun method or a robotic arm welding method is used in combination in a single device, thus providing high scalability. Additionally, the welding target itself moves in response to the joint, simplifying the overall structure and lowering the cost of the device. Furthermore, the welding process is performed continuously through a welding preparation table and a completion table, thereby improving productivity. Brief explanation of the drawing

[0016] FIG. 1 is an overall configuration diagram of an automatic welding device according to a first embodiment of the present invention. FIG. 2 is an overall configuration diagram of an automatic welding device according to a second embodiment of the present invention. FIG. 3 is a configuration diagram of the main table and main transfer member among the configurations of FIG. 1 and 2. FIG. 4 is a configuration diagram of a digitizer member among the configurations of FIG. 1 and FIG. 2. Figure 5 is a configuration diagram of the welding work section among the configurations of Figures 1 and 2. Figure 6 is a configuration diagram of the process work section among the configurations of Figures 1 and 2. Specific details for implementing the invention

[0017] The features of the automatic welding device according to the present invention can be understood through the embodiments described in detail below with reference to the attached drawings.

[0018] Meanwhile, embodiments of the present invention may be implemented in various forms within the scope of the art to which the invention belongs, and are not specifically limited to the embodiments described herein.

[0019] In addition, to clearly explain the present invention, repetitive descriptions of identical or similar components throughout the specification have been omitted, drawings have been omitted for parts unrelated to the description, and reference numerals for ordinary components have been omitted.

[0020] Hereinafter, an automatic welding device according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6.

[0021] The automatic welding device (1) according to this comprises: a main table (100) which is a space for welding work; a digitizer member (200) for path recognition and path coordinate acquisition regarding the shape of the joint of the workpiece; a main transfer member (300) for moving the main table (100) according to the path coordinates acquired through the digitizer member (200); and a welding work unit (400) positioned adjacent to the main table (100) to weld the workpiece.

[0022] Each of the components described above will be explained in detail below.

[0023] First, the main table (100) provides a space for welding work, and preferably, the main table (100) is installed on the upper side of the main body (110).

[0024] Meanwhile, the main table (100) further includes a rotating plate (120) for rotation in place.

[0025] The rotating plate (120) is coupled between the main transfer member (300) on the lower side of the main table (100) and rotates the main table (100) in place through a servo motor, and more specifically, enables the main table (100) to rotate a fixed welded part in a path where rotation is required according to the shape of the joint.

[0026] Additionally, the main table (100) further includes a chucking pin (130) that is fitted into the moved work table (510) to fix the work table (510) to the main table (100).

[0027] A chucking pin (130) is provided on the upper part of the main table (100), and the chucking pin (130) moves up and down through pneumatic pressure. When the work table (510) on which the weld is fixed to the main table (100) moves according to the movement of the chucking pin (130), the chucking pin (130) is inserted into a hole formed at a specific location on the work table (510), thereby fixing the work table (510) to the main table (100).

[0028] And the digitizer member (200) is for path recognition and path coordinate acquisition regarding the joint shape of the weldment.

[0029] Meanwhile, the digitizer member (200) is equipped with a digitizer (210) for path recognition and path coordinate acquisition of the joint, and the operator manually acquires the coordinates by holding the handle of the digitizer (210) and directly touching the welding position of the welded part.

[0030] That is, if the welding coordinates of the same welding target are directly obtained using a digitizer before the continuous welding operation, such as the x-axis, y-axis, z-axis, and rotation, the welding operation is performed by moving the main table (100) according to the obtained coordinates of the main transfer member (300) during the welding operation.

[0031] In addition, the above dezatizer (210) is not equipped with a motor and is composed only of an LM guide and a block, and a linear scaler (not shown) in the form of an electrical signal is provided in front of the block to acquire coordinate data, and for the same workpiece, the dezatizer coordinate measurement operation is performed only once, and from then on, welding is performed using only that data.

[0032] At this time, the path of the weld recognized through the digitizer (210) is transmitted to the main control controller (computer, etc.) of the automatic welding device (1) and converted into coordinate values ​​such as X-axis, Y-axis, Z-axis, and rotation, and the main transfer member (300) moves the main table (100) on which the weld is fixed using the converted coordinate values.

[0033] Additionally, the digitizer member (200) further includes a digitizer transfer unit (220) that moves the digitizer (210) in the direction of the X-axis, Y-axis, Z-axis, rotation, etc.

[0034] The digitizer transfer unit (220) is composed of an LM guide and block (221) for manual movement in the X-axis direction, an LM guide and block (222) for manual movement in the Y-axis direction, and an LM guide and block (223) for manual movement in the Z-axis direction.

[0035] The LM guide and block (223) in the Z-axis direction is positioned on the upper part of the main table (100) and is vertically coupled to a frame installed on the main body (110); the LM guide and block (222) in the Y-axis direction is horizontally connected to the LM guide and block (223) in the Z-axis direction in the Y-axis direction; the LM guide and block (221) in the X-axis direction is horizontally connected to the lower part of the LM guide and block (222) in the Y-axis direction in the X-axis direction; and the digitizer (210) is rotatably coupled to the lower part of the LM guide and block (221) in the X-axis direction around a frame axis that extends vertically, so as to rotate in place with respect to the Z-axis.

[0036] And the main transfer member (300) is intended to move the main table (100) according to the path coordinates obtained through the digitizer member (200), and more specifically, to directly move the welded workpiece fixed to the main table (100) along the path of the weld joint, while the welding work unit (400) performs the welding work in a fixed state.

[0037] Meanwhile, the main transfer member (300) further includes a first actuator (310) that moves the main table (100) in the Z-axis direction; a second actuator (320) that moves the main table (100) in the X-axis direction; and a third actuator (330) that moves the main table (100) in the Y-axis direction.

[0038] The first actuator (310) is provided in the vertical direction of a frame installed vertically above the main body (110), preferably a pair of first actuators (310) are provided, a third actuator (330) is horizontally connected in the Y-axis direction between the pair of first actuators (310), and a second actuator (320) is horizontally connected in the X-axis direction above the third actuator (330).

[0039] At this time, a rotating plate (120) that is rotated by motor drive is connected to the upper side of the second actuator (320), and a main table (100) is coupled to the upper side of the rotating plate (120), so that the main table (100) can be operated in the X-axis, Y-axis, Z-axis, and in place through the first actuator (310), the second actuator (320), and the third actuator (330).

[0040] And the welding work unit (400) is positioned adjacent to the main table (100) and is intended to weld the joint of a weld fixed in the work space of the main table (100).

[0041] Meanwhile, the welding work unit (400) may be equipped with either a fixed welding gun (410a) or a robotic arm welding gun (410b). FIG. 1 shows an automatic welding device (1) of a first embodiment equipped with a fixed welding gun (410a), and FIG. 2 shows an automatic welding device (1) of a second embodiment equipped with a robotic arm welding gun (410b).

[0042] Through this, the user can selectively use a fixed welding gun (410a) or a robotic arm welding gun (410b) in the automatic welding device (1), and the scalability is increased by using such welding methods in combination in one device.

[0043] At this time, since the fixed welding gun (410a) and the robot arm welding gun (410b) are widely used in the past, a detailed description thereof is omitted, and the external appearance and structure of the fixed welding gun (410a) and the robot arm welding gun (410b) are not particularly limited.

[0044] In this case, welding is performed while the fixed welding gun (410a) is fixed to the welding transfer unit (420), and the robot arm welding gun (410b) can operate in conjunction with the movement of the main transfer member (300).

[0045] Meanwhile, the welding work unit (400) further includes a welding transfer unit (420) that moves a fixed welding gun (410a) or a robot arm welding gun (410b) in the X-axis and Z-axis directions.

[0046] Here, the welding transfer unit (420) is composed of a fourth actuator (421) for movement in the X-axis direction and a fifth actuator (422) for movement in the Z-axis direction.

[0047] The fifth actuator (422) is provided in the vertical direction of a frame separately installed vertically on one side of the upper part of the main body (110), preferably a pair of fifth actuators (422) are provided, and a fourth actuator (421) is horizontally connected in the X-axis direction between the pair of fifth actuators (422), and a fixed welding gun (410a) or a robot arm welding gun (410b) is connected in the direction of the main table (100) to the lower part of the fourth actuator (421).

[0048] Meanwhile, the aforementioned actuators may utilize linear actuators having rails or similar devices, and are not specifically limited to the form and structure of the actuator.

[0049] And the automatic welding device (1) further includes a process work unit (500) for performing process work such as preparing a weld or returning a welded work.

[0050] One or more process work sections (500) are provided on the side adjacent to the main table (100). Preferably, the process work section (500) is illustrated as having a basic form in which a work table (510) for preparing a weld and a work table (510) for transporting a welded work are each provided.

[0051] Meanwhile, the process work section (500) is provided with a work table (510) that is moved between the main table (100) and the process work section (500) according to the process, and the welded work is fixed thereto.

[0052] The work table (510) is formed in the shape of a plate on which the welded workpiece is placed and fixed, and a separate structure for fixing the welded workpiece on the work table (510) may be provided, and more specifically, the work table (510) is moved directly to the upper side of the rotating plate (120) of the main table (100) to supply the welded workpiece and becomes a work table for fixing the supplied welded workpiece, and for this purpose, the work table (510) is installed corresponding to the height of the main table (100).

[0053] Here, the work table (510) can be slid through a structure in which the wheel (511) rolls along the rail (512).

[0054] At this time, one or more wheels (511) are provided on both lower sides of the work table (510), and rails (512) are provided on the lower side of the work table (510) and on the upper side of the turntable (120) of the main table (100), respectively. As the rails (512) provided on the work table (510) and the turntable (120) are formed at the same height, the work table (510) located in the process work section (500) slides along the rails on the upper side of the turntable (120) of the main table (100).

[0055] In addition, since the rotating plate (120) is rotatable, welding is performed after the workpiece is transported from the process work section (500) where the workpiece is prepared, and when the welding is completed, the rotating plate (120) rotates to the position of the process work section (500) where the workpiece is returned, allowing the work table (510) to be returned by sliding.

[0056] Here, the process work unit (500) basically has the work table (510) slide-moved manually, but if a cylinder, actuator, etc. is applied to the work table (510) side as needed, it can slide-moved automatically through the power of the cylinder, actuator.

[0057] For example, the present invention has high expandability as a fixed welding gun (410a) or a robotic arm welding gun (410b) is used in combination in one automatic welding device (1), and the cost of the device is lowered as the overall structure is simplified by moving the workpiece itself in response to the joint through the main transfer member (300), and productivity is improved by providing a welding preparation section and a welding completion section using the process work section (500) so that welding process work is performed continuously with a single setting of the joint using the digitizer (210).

[0058] As explained above, the present invention has been described in a preferred manner through the foregoing description and drawings, but the terms used to describe the present invention are not specifically limited, and the present invention is capable of variously changing or modifying embodiments within the scope of the technical concept of the invention and within the level of knowledge of those skilled in the art to which the invention belongs, and is not limited to the embodiments of the detailed description and claims of the present invention. Explanation of the symbols

[0059] 1; Automatic welding device 100; Main table 110; Main body 120; Rotating plate 130; Chucking pin 200; Digitizer component 210; Digitizer 220; Digitizer transfer unit 221; LM guide and block in the X-axis direction 222; LM guide and block in the Y-axis direction 223; LM guide and block in the Z-axis direction 300; main transfer member 310; first actuator 320; 2nd actuator 330; 3rd actuator 400; Welding work unit 410a; Fixed welding gun 410b; Robot arm welding gun 420; Welding transfer unit 421; 4th actuator 422; 5th actuator 500; Process Work Unit 510; Work Table 511; Wheel 512; Rail

Claims

Claim 1 An automatic welding device comprising: a main table (100) which is a space for welding work; a digitizer member (200) for path recognition and path coordinate acquisition regarding the shape of the joint of the weldment; a main transfer member (300) for moving the main table (100) according to the path coordinates acquired through the digitizer member (200); and a welding work unit (400) positioned adjacent to the main table (100) for welding the weldment, wherein the main table (100) further includes a rotating plate (120) for rotation in place, and the automatic welding device further includes a process work unit (500) for performing process work such as preparing the weldment or transporting the weldment completed, wherein the process work unit (500) is each equipped with a work table (510) for preparing the weldment and a work table (510) for transporting the weldment completed, and the work table (510) is moved directly to the upper side of the rotating plate (120) of the main table (100) to supply the weldment and An automatic welding device having a structure in which a wheel (511) rolls along a rail (512) to perform a return operation, wherein the wheel (511) is provided at the bottom of a work table (510), and the rail (512) is provided at the bottom of the work table (510) and at the top of a rotating plate (120), respectively, and the rail (512) provided at the work table (510) and the rotating plate (120) are formed at the same height, and the main table (100) further includes a chucking pin (130) that is fitted into the moved work table (510) to fix the work table (510) to the main table (100). Claim 2 In claim 1, the welding work unit (400) is equipped with either a fixed welding gun (410a) or a robotic arm welding gun (410b), and the automatic welding device further includes a welding transfer unit (420) that moves the fixed welding gun (410a) or the robotic arm welding gun (410b) in the X-axis and Z-axis directions. Claim 3 In claim 1, the main transfer member (300) further comprises a first actuator (310) for moving the main table (100) in the Z-axis direction; a second actuator (320) for moving the main table (100) in the X-axis direction; and a third actuator (330) for moving the main table (100) in the Y-axis direction. Claim 4 delete Claim 5 In claim 1, the digitizer member (200) further comprises a digitizer transfer unit (220) that moves the digitizer (210) in the X-axis, Y-axis, and Z-axis directions and rotates it around the Z-axis. Claim 6 delete

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