JP4249209B2 - Rib plate cutting trace cutting device for steel - Google Patents

Description

  The present invention relates to a rib plate cutting trace cutting apparatus for cutting and removing rib plate cutting traces remaining on a web of steel materials such as H-shaped steel, I-shaped steel, and steel sheet piles.

  H-type steel and I-type steel (hereinafter referred to as “steel”) used as earth retaining plates and construction piers at construction sites are often rented in recent years, and after use, they are returned to their owners for the next rental. Often stored for. When the steel material is used as a retaining plate, a construction pier or the like, the steel material 100 may be reinforced by welding the rib plate 101 to the web portion 102 or the flange 103 as shown in FIG. The shape and welding position of the rib plate 101 differ depending on the use of the steel material 100. The rib plate 101 returned to the rental company is cut (fused) and removed by a gas burner at the rental company and prepared for the next rental. In order to avoid damaging the steel material 100 (base material) at the time of this fusing removal, the rib plate 101 and the weld bead are left at a height of about 5.0 mm to 10.0 mm as shown in FIG. This remaining portion is called a rib plate cut mark 104 (also called a bead). The rented steel material 100 may be newly welded with a rib plate at the next rental destination according to the application. However, if the rib plate cutting mark 104 remains, it may become an obstacle when newly welding a rib plate, and the appearance is also bad, so a claim that it is unrepaired in appearance is received. was there. For this reason, the rental company removes the rib plate cut marks 104 in preparation for the next rental.

  Since the cutting and removing work is performed manually, workability is poor, much labor is required, and labor costs are high.

  The present invention provides a rib plate cutting trace cutting device capable of solving the above-mentioned problems by cutting and removing the cutting trace of the rib plate remaining on the steel material without damaging the base material.

  The rib plate cutting trace cutting device of the present application is provided with a lateral movement base on a base that can be attached to and detached from the flange of the steel material, and the lateral movement base is capable of lateral movement in the width direction of the steel material. A cutting machine for cutting the rib plate cutting traces remaining on the steel web is provided on the lateral movement table, the cutting machine is provided with a rotary cutter, and the cutting machine is moved by the lateral movement of the horizontal movement stage while moving laterally by the rotary knife. The rib plate cutting trace can be cut in the width direction of the steel material. In this case, as described in claim 3, the cutting height of the rib plate cutting trace can be adjusted by moving the rotary blade up and down by the height adjusting body.

  In the rib plate cutting trace cutting apparatus of the present application, as described in claim 2, a lateral movement base is provided on a base that can be attached to and detached from the flange of the steel material, and the lateral movement base is laterally movable in the width direction of the steel material. The horizontal moving table is provided with a front / rear moving table, the front / rear moving table is movable back and forth in the axial direction of the steel material, and a cutting machine for cutting the rib plate cutting marks remaining on the steel material web is provided in the front / rear moving table. The cutting machine is equipped with a rotary blade, and the cutting machine can cut the rib plate cutting traces in the width direction of the steel with the rotary blade while moving horizontally by the horizontal movement of the horizontal movement table, while moving back and forth by moving the front and rear movement table back and forth. The rib blade cutting trace can be cut also in the axial direction of the steel material with a rotary blade. Also in this case, as described in claim 3, the cutting height of the rib plate cutting trace can be adjusted by moving the rotary blade up and down by the height adjusting body.

The rib plate cutting trace cutting apparatus according to claims 1 to 3 of the present application has the following effects.
(1) Since a base that can be attached to and detached from the flange of the steel material is provided, it is easy to attach to and remove from the steel material, and the rotary blade is stable, so that the work is easy.
(2) Since the cutting machine equipped with the rotary cutter is mounted on the lateral movement table, the horizontal movement table is moved laterally along the rib plate cutting marks remaining on the steel material by moving the horizontal movement stage, and the rotary cutter Thus, it is possible to cut and remove rib plate cutting traces that are long in the width direction of the steel material.
(3) Since the cutting machine is provided on the front / rear moving table on the lateral moving table, the rib plate remains obliquely on the steel as shown in FIG. 11B by moving the front / rear moving table back and forth. The rib plate cutting traces can be removed by cutting along the cutting traces.
(4) Since the height of the rotary blade can be adjusted by the height adjuster, the rib plate cutting traces can be cut and removed without damaging the base material, and the base material is neither damaged nor deteriorated in strength. It can be used, and since the rib plate cutting traces are less uneven, it becomes easier to newly weld the rib plate to the steel material.

  An example of an embodiment of a rib plate cutting trace cutting apparatus of the present invention will be described with reference to FIGS. This rib plate cutting trace cutting device (hereinafter referred to as “cutting device”) has a rib plate cutting trace (hereinafter simply referred to as “cutting trace”) remaining on the web 102 of the steel material 100 as shown in FIG. 1 to 4, a horizontal movement table 2 is provided on a base 1 that can be attached to and detached from a flange 103 of a steel material 100, and a front and rear movement table 3 is provided on the horizontal movement table 2. And a cutting machine 4 having a rotary cutter 5 is mounted on the front and rear moving table 3.

  The base 1 is a guide body 11 (moving on the flange 103) on the lower surface of a rectangular frame base (base body) 10 (FIG. 1) longer than the width between both flanges 103 on both sides of the steel material 100 in the width direction. 1 and 4) and a fixture 12 (FIGS. 3 and 5a, b) for fixing the base body 10 to the flange 103.

  The guide 11 moves the base 1 along the flange 103 of the steel material 100. As shown in FIG. 1 and FIG. The distance between the two left and right positions is the same as the distance between the flanges 103. As shown in FIGS. 1 and 4, each guide body 11 is attached to a bracket 13 fixed to the bottom surface of the base body 10, an upper traveling roller 14 that travels on the upper end surface of the flange 103 of the steel material 100, and the flange 103. Two side guide rollers 15 that run with both upper side surfaces sandwiched from the outside are attached.

  As shown in FIGS. 3, 5 (a) and 5 (b), the fixture 12 fixes the base 1 to the flange 103 of the steel material 100. Installed in four places. As shown in FIG. 5 (a), each fixture 12 includes a clamping plate 16 that is directed to the outer surface of the flange 103, and an upper portion of a coupling plate 17 that is disposed on the inner side of the clamping plate 16 by a coupling bolt 18 and a nut 19. The lower portions of both plates 16 and 17 are connected by a slide shaft 20, and the clamping plate 16 is pushed outward by a pressing spring 21 disposed on the slide shaft 20, and is attached to the outer end portion of the slide shaft 20. When a certain lever 22 is rotated directly upward as shown in FIG. 5A, the clamping plate 16 is pressed against the outer surface side of the flange 103, and the flange 103 is held by the left and right clamping plates 16 and fixed to the base 1. Then, as shown in FIG. 5 (b), when the lever 22 is tilted outward, the pressing of the clamping plate 16 to the flange 103 is released and the fixation to the base 1 is released.

  The lateral movement table 2 is provided on the base 1 so as to be laterally movable on the base 1 in the width direction of the steel material 100, and by this lateral movement, the cutting machine 4 is moved in the width direction of the steel material 100. As shown in FIGS. 1 and 2, the base screw rod 23 provided on the base main body 10, the moving base body 24 screwed to the base screw rod 23, A fitting portion 25 provided on the bottom surface of the movable table main body 24 is provided. The fitting portions 25 are provided at a total of four locations, two on the left and right sides of the bottom surface of the movable base body 24, and two on the front and rear sides (FIGS. 1 and 2). And a motor (driving body) 27 that is fitted to two base rails 26 (FIG. 2) arranged in the longitudinal direction of the steel material 100 and is connected to one axial end of the base screw rod 23. When the base screw rod 23 is rotated by the rotation of FIG. 1, the fitting portion 25 is guided by the base rail 26, and the movable base body 24 moves laterally along the base screw rod 23. The drive body 27 can be rotated forward and backward. When forwardly rotated, the base screw rod 23 is rotated forward (rightward) to move the movable base body 24 in the right direction. When reversely rotated, the base screw rod 23 is reversely rotated. It is possible to move (return) the movable base body 24 in the left direction by rotating (turning counterclockwise).

  The longitudinal movement table 3 is provided on the lateral movement table 2 so as to be able to move back and forth in the axial direction of the steel material 100 on the lateral movement table 2, and the cutting machine 4 is moved along the steel material 100 by this longitudinal movement. The front / rear fitting part 31 is provided on the bottom surface of the plate-like front / rear substrate 30 serving as a base. There are a total of four locations. These front and rear fitting portions 31 are fitted to two front and rear rails 32 provided in parallel on the lateral movement table 2 as shown in FIGS. 1 and 4, and move back and forth along the front and rear rails 32. It is like that. As shown in FIGS. 1 and 4, a threaded body 33 is provided on the side of the front / rear fitting portion 31, and a front / rear screw rod 34 is screwed into a screw hole of the threaded body 33 so that the front / rear screw rod 34 is attached. When rotated by a front / rear handle 35 attached to one end thereof, the front / rear substrate 30 is moved back and forth in the axial direction of the steel material 100 along the front / rear rail 32 (FIG. 4). As shown in FIG. 4, the front and rear screw rods 34 are formed longer than the front and rear substrates 30 and are arranged in the same direction as the front and rear rails 32.

  The cutting machine 4 is for cutting the cut mark 104 of the steel material 100. As shown in FIG. 2, the cutting tool 104 for cutting the cutting mark 104 and the blade support 37 for supporting the rotating shaft 36 of the rotary blade 5 are used. A rotation drive shaft 38 for attaching the blade support 37 and a rotation drive body (for example, a motor) 39 for rotating the rotary blade 5 by rotating the rotation drive shaft 38.

  As shown in FIGS. 6A and 6B, the rotary blade 5 has cutting blades (tips) 42 attached to four attachment portions 41 formed at intervals of 90 degrees on the pedestal 40. As shown in FIG. 7A, the cutting blade (chip) 42 has an attachment hole 44 opened at the center of a square base material 43, and a blade 45 is formed along the outer periphery of the square ring shape of the base material 43. ing. The cutting blade 42 is fixed to the mounting portion 41 of the pedestal 40 with a screw 47 screwed into the mounting hole 44 as shown in FIG. In this case, the cutting blade 42 is fitted and attached to a fitting recess 48 formed in the attachment portion 41 so that the cutting blade 42 can be positioned and its idling can be prevented. Since the cutting blade 42 is worn or chipped as shown in FIG. 7 (b) by use, at that time, the tightening of the screw 47 is loosened so that the other corner portions 46 that are not worn or chipped face downward. Thus, the direction can be changed to be replaced with the fitting recess 48.

  The rotary blade 5 rotates as follows. When the rotary drive 39 is rotated, the rotary drive shaft 38 is rotated, and the blade support 37 is rotated along with the rotation. The rotation shaft 36 of the rotary blade 5 is rotated by the rotation, and the base of the rotary blade 5 is rotated. 40 and the four cutting blades 42 attached to it rotate.

  The cutting machine 4 is attached to a vertically long height adjusting body 50 fixed on the front and rear moving table 3 so as to be movable up and down. The height adjusting body 50 is for adjusting the cutting height of the rib plate cutting marks 104 by adjusting the height of the rotary blade 5 of the cutting machine 4. As shown in FIG. 8, the height adjusting body 50 has two fitting rails 52 provided on the front surface of a cubic box-shaped support body 51 and two fitting rails 52 provided on the back surface of the lifting body 53. The groove of the joining portion 54 is fitted, the screw hole of the lifting / lowering body 53 is screwed into the lifting / lowering screw rod 55 disposed between the two lifting / lowering rails 52 on the front surface of the support body 51, and the lifting / lowering screw A lifting handle 56 is attached to the upper portion of the flange 55. When the elevating handle 56 is rotated forward and the elevating screw rod 55 is rotated forward, the elevating body 53 is guided by the elevating rail 52 and rises along the elevating screw rod 55, and as a result, the front surface of the elevating body 53 is raised. When the rotary shaft 36 of the rotary cutter 5 of the cutting machine 4 attached to the cutting machine 4 and the rotary cutter 5 at the lower end of the rotary cutter 5 are raised and the lifting handle 56 is rotated in the reverse direction, the lifting screw 55 is rotated in the reverse direction, and the lifting body 53 is moved up and down. The rotary shaft 36 of the rotary cutter 5 of the cutting machine 4 and the rotary cutter 5 at the lower end of the rotary cutter 5 of the cutting machine 4 are lowered along the raising / lowering screw rod 55 guided by the rail for rail 52. As shown in FIG. 9, a scale 57 for setting the height is displayed in the vertical direction on the front surface of the support 51, and a pointer 58 is attached to the lifting / lowering body 53. Accordingly, the position (height) of the pointer 58 is changed, and the indicated scale position is also changed.

  A control panel 59 provided with various control devices, operation buttons, and operation knobs is provided on the back surface of the support 51. The control panel 59 can be operated by opening the rear door of the housing.

  A tank 60 is installed on the support 51, and cooling water or cooling oil is placed inside the tank 60. As shown in FIGS. 1 and 10, a nozzle 62 is connected to the tank 60 by a hose 61, and cooling water or cooling oil in the tank 60 is supplied to the cutting location when the cutting mark 104 is cut with the rotary blade 5. I can do it.

  A suspension fitting 63 is provided on the support 51, and a hook of a crane is locked to the suspension fitting 63, and the cutting device of the present invention is lifted by the crane and placed on the steel material 100. It can be removed from above.

(Example of use)
In order to cut and remove the cut mark 104 that remains straight between the left and right flanges 103 on the web 102 of the steel material 100 as shown in FIG. 11B using the cutting apparatus of the above-described embodiment, for example, as follows. .
(1) As shown in FIG. 11 (b), the steel material 100 is arranged so that the web 102 from which the cut marks 104 to be removed remain upward.
(2) The crane hook is engaged with the hanging bracket 63 of the cutting device, and the cutting device is lifted and set on the flange 103 of the steel material 100. At this time, as shown in FIGS. 1 and 4, the upper running roller 14 of the guide body 11 on the lower surface of the base 2 is disposed on the upper end surface of the flange 103, and the two side guide rollers 15 are located near the upper end of the flange 103. It arrange | positions so that it may pinch | interpose from both sides, and it arrange | positions on the steel material 100 so that a cutting device can slide to the axial direction of the steel material 100, and the cutting device can move on the flange 103. FIG.
(3) A shim (padded plate) is inserted under the cutting blade 42 of the rotary blade 5 at a flat portion of the web 102 of the steel material 100. The thickness of the shim is about the same as the remaining height of the cut mark 104 after cutting. The raising / lowering handle 56 is rotated until the cutting blade 42 contacts the shim to lower the cutting blade 42. After the contact, the lifting handle 56 is returned half turn to remove the shim. Thereafter, the lifting handle 56 is advanced half a turn so that the cutting blade 42 is adjusted to the height at which the cutting blade 42 contacts the shim.
(4) The cutting device is stopped near the cut mark 104 to be removed by moving on the flange 103.
(5) At the stop position, the levers 22 of the respective fixtures 12 of the base 1 are lifted directly upward as shown in FIGS. 3 and 5A, and the respective clamping plates 16 are pressed against the flange 103 to cause the base 1 Is fixed and the cutting device is positioned.
(6) The front / rear handle 35 is manually rotated to rotate the front / rear screw rod 34, the front / rear moving table 3 is moved back and forth on the lateral moving table 2, and the cutting blade 42 of the cutting machine 4 is cut into the steel material 100. Align with the position of the mark 104.
(7) The control board 59 is operated to operate the rotary drive body 39 of the cutting machine 4, and the rotary blade 5 is rotated to start cutting the cutting mark 104 (refer to the chain line portion in FIG. 10). At this time, cooling water or cooling oil in the tank 60 is supplied from the nozzle 62 to the cutting portion, and cutting is performed while cooling the cutting portion.
(8) Operate the control board 59 to operate the rotary drive 39 of the base 1 and rotate the base screw rod 23 to move the lateral movement base 2 laterally on the base 1 as shown in FIG. By doing so, the cutting machine 4 is moved in the width direction of the steel material 100 along the cutting marks 104 to cut the cutting marks 104.
(9) During cutting, the front / rear handle 35 is slowly operated as necessary so that the cutting blade 42 always moves on the cutting mark 104 (the cutting blade 42 moves without detaching from the cutting mark 104). The cutting trace 104 can be reliably cut. If the cut mark 104 is too high, the height of the cutting blade 42 of the rotary blade 5 can be adjusted by operating the lifting handle 56 during cutting. If an abnormality occurs during cutting, the emergency stop button provided on the control panel 59 can be operated to stop the cutting urgently.
(10) When one cutting mark 104 has been removed by cutting, the control panel 59 is operated to stop the lateral movement of the cutting machine 4 and the rotation of the rotary blade 5.

When cutting and removing another cut mark 104 of the same steel material 100 as the steel material, the following is performed.
(11) The lever 22 of each fixture 12 of the base 1 is moved outward as shown in FIG. 5B, and after the positioning of the cutting device is released, another cutting mark 104 near where the cutting device is removed by cutting. To move.
(12) The steps (5) to (10) are repeated to remove the cutting trace 104 by cutting.

  In order to cut and remove the cutting trace 104a that remains diagonally between the left and right flanges 103 in the web 102 of the steel material 100 as shown in FIG. During the cutting operation of (9), the cutting machine 4 is skewed along the skew of the cutting mark 104a. For this purpose, the cutting mark 104a is cut and removed while operating the front / rear handle 35 and rotating the front / rear screw rod 34 to move the front / rear moving table 3 forward or backward.

(Embodiment 2)
In the cutting apparatus of the present invention, the distance between the left and right guide bodies 11 and the fixtures 12 on the bottom surface of the base 1 can be adjusted, and even a steel material 100 having a different distance between the flanges 103 can be cut with a single cutting apparatus. It can also be possible. In addition, a plurality of sets of guide bodies 11 and fixtures 12 may be attached to the base 1 in advance according to the interval between the flanges 103 of the steel material 100.

(Embodiment 3)
In the first embodiment, the lateral movement of the cutting machine 4 can be automatically performed by the driving body (motor) 27. However, a handle is provided in place of the driving body 27, and it is manually rotated to be laterally moved. It can also be. Further, in the first embodiment, the cutting machine 4 is moved back and forth manually and moved up and down manually by the front and rear handle 35 and the lift handle 56, but the motor or the like is driven instead of one or both of the front and back handle 35 and the lift handle 56. It is also possible to prepare a body so that one or both of the cutting machine 4 can be automatically moved and moved up and down by the driving body.

(Embodiment 4)
The rotary cutter 5 of the cutting machine 4 may be a rotary cutter 5 having a shape and structure other than those described above as long as the cutting trace 104 can be removed by cutting.

  The rib plate cutting trace cutting apparatus of the present invention is not limited to cutting and removing cutting traces remaining on the web of steel materials such as H-shaped steel, I-shaped steel, and steel sheet piles, but also deburring of steel materials, cutting and removing of welding humps, and metal surfaces. It can be widely used for removing dirt. It can also be used to polish steel by simply replacing the rotary blade with a polishing tool.

FIG. 5 is a schematic front view illustrating an example of an embodiment of a rib plate cutting trace cutting apparatus according to the present invention, in which some constituent members such as the fixture of FIG. 4 are omitted. The right side schematic of the rib board cutting trace cutting apparatus shown in FIG. BRIEF DESCRIPTION OF THE DRAWINGS The front schematic diagram which showed an example of embodiment of the rib board cutting trace cutting device of this invention, and abbreviate | omitted some structural members, such as the horizontal movement stand of FIG. FIG. 4 is a right side schematic view showing an example of an embodiment of the rib plate cutting trace cutting apparatus shown in FIG. 3 and omitting some constituent members such as a cutting machine. (A), (b) is explanatory drawing which shows operation | movement of the fixing tool of the rib board cutting trace cutting device of this invention, (a) is at the time of fixation, (b) shows the time at the time of cancellation | release of fixation. (A) is plane explanatory drawing which shows the attachment state of the cutting blade to the base of a rotary cutter, (b) is a perspective view which shows the attachment state. (A) is explanatory drawing of the new state of a cutting blade, (b) is explanatory drawing of the cutting blade partially lost by use. Plane explanatory drawing of the raising / lowering mechanism part of the raising / lowering body in the rib board cutting trace cutting device of this invention. Front explanatory drawing of the raising / lowering scale part of the raising / lowering body in the rib board cutting trace cutting device of this invention. The partially-omission front view which shows the rib board cutting trace cutting condition by the rib board cutting trace cutting apparatus of this invention. (A) is a perspective view of the steel material which attached the rib board, (b) is a perspective view of the steel material which the cutting trace remained by cutting and removing the rib board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 2 Horizontal moving table 3 Back and forth moving table 4 Cutting machine 5 Rotating knife 10 Base main body 11 Guide body 12 Fixing tool 23 Base screw body 24 Moving base main body 25 Fitting part 26 Base rail 27 Drive body 30 Front and rear board DESCRIPTION OF SYMBOLS 31 Front / rear fitting part 32 Front / rear rail 33 Screwed body 34 Front / rear screw rod 35 Front / rear handle 36 Rotating shaft 37 Blade support body 38 Rotating driving shaft 39 Rotating driving body 40 Base 41 Mounting portion 42 Cutting blade (chip)
43 Base Material 44 Mounting Hole 45 Blade 46 Corner 47 Screw 48 Fitting Recess 50 Height Adjuster 51 Support 52 Lifting Rail 53 Lifting Body 54 Fitting Part 55 Lifting Screw 56 Lifting Handle 59 Control Panel 60 Tank 100 Steel material 101 Rib plate 102 Web 103 Flange 104 Rib plate cutting trace

Claims (3)

  A lateral movement base is provided on the base that can be attached to and detached from the flange of the steel material, the lateral movement base is laterally movable in the width direction of the steel material, and the cutting machine that cuts the rib plate cutting traces remaining on the steel material web includes the horizontal movement table. Rib plate cutting, characterized in that it is provided on a moving table, the cutting machine is equipped with a rotary cutter, and the cutting machine can cut the rib plate cutting trace in the width direction of the steel material with the rotary cutter while moving laterally by the lateral movement of the horizontal moving table. Trace cutting device.   A lateral movement base is provided on the base that can be attached to and detached from the steel flange, the lateral movement base is laterally movable in the width direction of the steel material, the lateral movement base is provided with a front and rear movement base, and the front and rear movement base is a steel shaft. A cutting machine capable of moving back and forth in the direction and cutting the rib plate cutting trace remaining on the steel web is provided on the front and rear moving table, the cutting machine is provided with a rotary blade, and the cutting machine is moved by the lateral movement of the horizontal moving table. The rib plate cutting trace can be cut in the width direction of the steel material with the rotary cutter while moving horizontally, and the rib plate cutting trace can be cut in the axial direction of the steel material with the rotary cutter while moving back and forth by moving the front and rear moving table back and forth. Rib plate cutting trace cutting device. The rib plate cutting trace cutting apparatus according to claim 1 or 2, wherein the rotary blade is moved up and down by a height adjusting body to adjust a cutting height of the rib plate cutting trace. apparatus.

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