Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
  • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
  • B23D15/06—Sheet shears
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
  • B23K9/00—Arc welding or cutting
  • B23K9/02—Seam welding; Backing means; Inserts
  • B23K9/025—Seam welding; Backing means; Inserts for rectilinear seams

Definitions

• This invention relates to the method of cutting the material to be welded, and in particular, the tail end of the preceding plate and the tip of the following plate of the material to be welded, such as a metal strip. Cutting with two sets of guillotine shears integrally formed, butting the cut surfaces together, and cutting the material to be welded when welding the joints It is a thing.
• FIG. 1 to FIG. 5 show a laser beam welding apparatus, in which a gate-shaped fixing frame 2 is fixed to a base 1 and holds a leading steel strip 5a. 1 is provided with upper and lower clamps 3 and 4, lower clamp 4 is fixed to base 1 and fixed frame 2, and upper clamp 3 is fixed frame 2 It is supported by the cylinder 6 attached to the helmet. Since the cylinder 7 moves the movable frame 8, the second upper and lower clas- ters which hold the succeeding steel strip 5b are provided. 9 and 10, the lower clamp 10 is fixed to the movable frame 8, and the upper clamp 9 is fixed by the cylinder 11 provided on the movable frame 8.
• the first upper clamp 3 is provided with a rail 12 force, and is provided with a welding torch 13 which is movably arranged along the rail 12.
• the radiated laser is designed to weld the butt of the succeeding steel strips 5a and 5b first.
• the U-shaped shear frame 14 is introduced between the fixed frame 2 and the movable frame 8 by the cylinder 16 along the rail 15, so that the The first and second lower blades 18 and 19 are fixed in parallel to a lower blade holder 17 fixed to the arm 14. Also, the first and second upper blade holders 21 movably supported by a cylinder 20 fixed to the shear frame 14 are vertically movable.
• the movable frame 8 is moved closer to the fixed frame 2 by the cylinder 7, and the following steel The cut ends of the strips 5a and 5b are joined. Then, the laser is radiated from the welding torch 13 and the butt portions of the succeeding steel strips 5a and 5b are welded.
• the conventional cutting method as described above is to cut the leading steel strips 5a and 5b at the same time by two sets of guillotine shears 24 and 2 at the same time. than had, previously, the trailing steel strip 5a, requires twice the force as compared with the case you cut one 5b, very large deal of cutting the plate thickness of the steel strip thickness Ku ing
• the disadvantage was that it required power.
• the present invention has been made in view of the above circumstances, and one of the two sets of guillotine shears integrally formed is cut by cutting one of the materials to be welded. Then, by cutting the other workpiece with the other shear, the cutting force is reduced and the workpiece is not deformed.
• the cutting force can be reduced without deforming the material to be welded at the time of cutting, and the device can be reduced in size and weight. Power> 'Yes
• FIG. 1 is a plan view of a conventional welding device
• FIG. 2 is a view taken in the direction of arrows ⁇ in FIG. 1
• FIG. 3 is a front view for explaining the same operation
• Fig. 5 is a side view of the main part for explaining the same operation
• Figs. 6 and 7 are side views of the main part showing another conventional method.
• Fig. 8 is a partially enlarged perspective view
• Figs. 9 and 10 are side views of essential parts for explaining an embodiment of the present invention.
• Figs. 11 and 12 are It is a principal part side view for explaining another Example similarly.
• FIG. 9 and FIG. 10 show a cutting method when the thickness of the leading and trailing steel strips 5a and 5b is equal to or more than a certain value.
• the succeeding steel strips 5a and 5b are thick plates, first, as shown in FIG. 9, only the rear end of the leading steel strip 5a and the rear steel strip 5a are first.
• the cutting force to be possessed by the guillotine shear can be significantly reduced. Also, there is no power to deform the subsequent steel strip.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Plasma & Fusion (AREA)
• Shearing Machines (AREA)
• Laser Beam Processing (AREA)

Applications Claiming Priority (1)

Publications (1)

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ID=12606085

Family Applications (1)

Country Status (2)

Cited By (1)

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Citations (1)

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• 1983
  • 1983-03-11 JP JP4135183A patent/JPS59166409A/ja active Granted
• 1984
  • 1984-03-09 WO PCT/JP1984/000095 patent/WO1984003463A1/ja not_active Ceased

Patent Citations (1)

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