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KR-20260065081-A - Automatic welding apparatus

KR20260065081AKR 20260065081 AKR20260065081 AKR 20260065081AKR-20260065081-A

Abstract

The present invention relates to an automatic welding device, and more specifically, to an automatic welding device in which the supply of a workpiece and welding are performed automatically. The present invention discloses an automatic welding device for performing welding on a workpiece (1), comprising: a welding section (1300) on which a welding position of the workpiece (1) is placed and which performs welding on said welding position; a jig section (1400) positioned adjacent to said welding section (1300) to fix said workpiece (1); a transfer robot (40) that grips and transports said workpiece (1) and places said workpiece (1) on said welding section (1300) and said jig section (1400); and a cover section (1500) provided on the upper part of said welding section (1300) on which said workpiece (1) is placed so as to be removable and to prevent external exposure of said welding position during the welding process.

Inventors

  • 김호진
  • 김태욱
  • 심우재
  • 김정우

Assignees

  • 주식회사 원익홀딩스

Dates

Publication Date
20260508
Application Date
20241031

Claims (8)

  1. As an automatic welding device for performing welding on a workpiece (1), A welding part (1300) that performs welding on the welding position of the above-mentioned welding target (1) and is seated thereon; A jig part (1400) that is positioned adjacent to the above-mentioned welding part (1300) and fixes the above-mentioned welding target (1); A transfer robot (40) that grips and transports the above-mentioned welding target (1) and places the above-mentioned welding target (1) on the welding part (1300) and the jig part (1400); An automatic welding device characterized by including a cover part (1500) that is provided to be detachable and covered on the upper part of the welding part (1300) on which the welding target (1) is placed, thereby preventing external exposure of the welding location during the welding process.
  2. In claim 1, An automatic welding device characterized by additionally including a vent stick insertion robot (1600) that inserts a vent stick (4) into the above-mentioned welding target (1).
  3. In claim 2, The above vent stick insertion robot (1600) is, An automatic welding device characterized by inserting the vent stick (4) into the welding target (1) while the welding target (1) is gripped by the transfer robot (40).
  4. In claim 1, The above cover portion (1500) is, An automatic welding device characterized by comprising: a lower body (1510) installed to surround a portion of the welded part (1300); a cover member (1520) provided to be detachably attached to the lower body (1510) to cover the upper portion of the welded part (1300); and a cover driving unit (1530) that drives the cover member (1520) so that the cover member (1520) is coupled to and separated from the lower body (1510).
  5. In claim 4, The above cover portion (1500) is, An automatic welding device characterized by additionally including a hinge portion (1540) provided on the lower body (1510) so that the cover member (1520) is hinge-rotatably relative to the lower body (1510).
  6. In claim 5, The above cover driving unit (1530) is, An automatic welding device characterized by being a cylinder that is coupled and installed to the welding part (1300) on the lower side of the lower body (1510) and drives the cover member (1520) so that the cover member (1520) rotates hinge-rotating.
  7. In claim 4, The above cover driving unit (1530) is, An automatic welding device characterized by hinge-connecting to the welding part (1300) so that the installation state can be changed according to the movement of the cover member (1520).
  8. In claim 4, The above cover portion (1500) is, An automatic welding device characterized by further including a protruding fixing part (1550) which is inserted into the cover member (1520) to fix the cover member (1520) in a horizontal direction when the welded area is covered through the cover member (1520), and which is provided to protrude upward at at least one end of the lower body (1510).

Description

Automatic welding apparatus The present invention relates to an automatic welding device, and more specifically, to an automatic welding device in which the supply of a workpiece and welding are performed automatically. Welding is a method of joining two solid materials by forming direct atomic bonds between them, and it is widely used to join metal materials. Generally, a welding device performs welding work along a welding line using a welding torch or the like while the workpiece is secured by being placed on a fixing jig that holds the workpiece. To this end, conventionally, a worker proceeded with preliminary preparations for welding by directly placing one workpiece onto a fixed jig and securing it to the jig through bolting, and then directly placing another workpiece onto the fixed jig and securing it to the jig again through bolting. In addition, even after the welding was completed, the welding process was carried out in a manner where the worker manually released the bolts on the welds and directly retrieved the welds. Accordingly, conventionally, since the worker must place and bolt each welding target onto a fixed jig, there is a problem of increased work time due to prior preparation for welding and retrieval of the completed weld. In addition, since workers must manually secure each welding target, there are issues such as reduced reliability of product production due to the mixing of welding targets, low work efficiency resulting from increased working time, and increased costs. To address these issues, a device has been developed that automatically transports workpieces using a transport robot and a welding robot to perform welding; however, there is still a problem where the quality deteriorates due to misalignment between workpieces during the transport and automatic welding processes. In addition, conventional automatic welding devices perform uniform welding automatically, so they have the problem of low versatility as they cannot perform welding on objects of various sizes and shapes. In addition, conventional automatic welding devices have a problem in that the welding area is exposed to the outside when welding a workpiece, and the welding quality deteriorates due to contact with various external gases during the welding process. FIG. 1 is a plan view showing the appearance of an automatic welding system according to the present invention. FIG. 2 is a plan view showing the appearance of a tack welding device according to the present invention. FIG. 3 is a plan view showing a workpiece to be welded in a fixed jig portion of a tack welding device according to FIG. 2. Figure 4 is a drawing showing the appearance of a welding robot among the tack welding devices according to Figure 2. FIGS. 5a to 5d are drawings that sequentially show the process of welding being performed by placing a workpiece on a tack welding device according to FIG. 2. FIGS. 6a and 6b are side views showing the front and rear view of a workpiece being fixed through a purge gas supply unit of a tack welding device according to FIG. 2. FIGS. 7a to 7c are drawings sequentially showing the driving process of the covering part of the tack welding device according to FIG. 2. FIG. 8 is a perspective view showing the appearance of a tube supply device according to the present invention. FIG. 9 is a rear perspective view showing the rear view of the tube supply device according to FIG. 8. FIG. 10 is a drawing showing the appearance of the tube alignment section of the tube supply device according to FIG. 8. FIG. 11 is a drawing showing the tube storage unit and the inclined frame of the tube supply device according to FIG. 8. FIG. 12 is a plan view showing the appearance of the tube alignment section of the tube supply device according to FIG. 8. FIGS. 13a and FIGS. 13b are cross-sectional views showing the appearance of a tube before and after supplying a tube through a tube delivery section of a tube supply device according to FIG. 8. FIG. 14 is a drawing showing tube supply devices of various sizes according to FIG. 8. FIG. 15 is a plan view showing the length measuring part of the tube supply device according to FIG. 8. FIGS. 16a and FIGS. 16b are drawings showing the length measuring part of the tube supply device according to FIG. 8 before and after length measurement. FIG. 17 is a plan view showing the appearance of an automatic welding device according to the present invention. FIG. 18 is a plan view showing a workpiece to be welded seated on a jig portion of an automatic welding device according to FIG. 17. FIGS. 19a to 19c are drawings that sequentially show welding being performed on a workpiece through an automatic welding device according to FIG. 17. FIGS. 20a and FIGS. 20b are drawings showing the front and rear views of the cover part of the automatic welding device according to FIG. 17. FIG. 21 is a plan view showing the appearance of the cover part of the automatic welding device according to FIG. 17. FIG. 2