JP6552866B2 - Cutting machine - Google Patents

Description

  The present invention relates to a self-propelled cutting machine that cuts a protrusion such as a suspension piece, an erection piece, a guide piece, or a joint plate that protrudes from a connection portion of a steel column in a steel structure or a reinforced concrete structure.

  Conventionally, as a cutting machine of this type, one having a configuration shown in FIG. 17 and FIG. 18 is known. This cutting machine 1 includes four magnet-type attachment portions 2 that are detachably attached to a steel column, a rail guide post 3 provided on each attachment portion 2, and a pair of rail guide posts 3 provided across each other. A movable rail 4, a movable roller 5 movable along the movable rail 4, and a cutting opening 6 connected to the movable roller 5 and passing through a protrusion (object to be cut) at the central portion The mounting board 7, the drive motor 8 provided on the mounting board 7, the driving roller 9 provided on the mounting board 7 that is driven in conjunction with the drive of the driving motor 8, and the mounting board 7 relative to the driving roller 9. And a cutter 11 rotated by the driven roller 10 and the driving roller 9 (see Patent Document 1).

  When the cutting machine 1 having such a configuration is used, as shown in FIG. 19, the four attachment portions 2 are adsorbed relative to the protrusions (objects to be cut) 13 of the steel frame columns 12 to be erected. Then, the drive motor 8 is driven to rotate the cutter 11 at a high speed.

  Then, the mounting substrate 7 descends along the moving rail 4 by its own weight, and the cutter 11 cuts the protrusion 13 when the cutting opening 6 of the mounting substrate 7 passes the protrusion 13.

Unexamined-Japanese-Patent No. 2006-21265

  By the way, when cutting the two protrusions 13a and 13b of the upper part and the lower part with the cutting machine 1 through the bulging obstacle part 14 formed in the steel column 12 as shown in FIG. Follow the procedure below. The obstacle portion 14 is a welding mark or the like, is formed in a seam (seam) or the like, and bulges out in a raised state.

  First, the four attachment portions 2 are adsorbed to the steel frame post 12 in opposition to the upper projection 13a, and then the projection 13a is cut. Thereafter, all the attachment portions 2 are removed. Next, after the cutting machine 1 is moved downward, the four attaching portions 2 are adsorbed to the steel frame column 12 against the lower protrusion 13b, and the protrusion 13b is cut.

  That is, the suction operation and the removal operation of the mounting portion 2 are performed separately on each of the protrusions 13a and 13b. The reason for this is that if the two protrusions 13a and 13b are continuously cut, after the upper protrusion 13a is cut, the cutter 11 is caught by the obstacle 14 and gets in the way, and the mounting substrate 7 is moved. This is because it cannot descend along the rail 4.

  As described above, since it is necessary to separately repeat the attachment work and the removal work of the attachment portion 2 for the upper and lower protrusions 13a and 13b, there is a problem that the workability is poor and inefficient. ing.

  Therefore, in the cutting machine 1 according to the conventional example, the work of cutting the two projections 13a and 13b at the upper and lower portions through the bulging obstacle portion 14 can be performed efficiently with good workability. It has problems to be solved.

The gist of the present invention for solving the problems of the conventional example is that the projections projecting at two locations through the bulged obstacles can be continuously cut into the steel part of the steel column. The cutting machine includes an attachment jig that is detachably attached to the steel part, and a cutting machine body, and the attachment jig is disposed across the width direction of the steel column. An elongated mounting plate, a side plate provided along each side of the steel column from both ends of the mounting plate, and a pressing bolt provided on the side plate and capable of being pressed against the side of the steel column A plate with a locking groove provided on the attachment long plate, and the cutting machine body includes a rotating support column that rotatably rotates in the locking groove, and a connecting plate on the rotating support column. and the front plate provided through a mounting portion of the magnet removably mounted to the steel section, attachment portion A rail guide column provided, a moving rail provided across between the said rail guide column the front plate, and a guide portion movable along the movement rails, are provided continuously to the guide portion And a mounting board having a cutting opening for passing the projection at the center, a drive motor provided on the mounting board, and driving driven in conjunction with driving of the drive motor and provided on the mounting board. A roller, a pair of driven rollers provided on the mounting substrate opposite to the driving roller, and a cutter rotated by the driven roller and the driving roller.

The gist of the following present invention is a cutting machine capable of continuously cutting protrusions provided at two locations on a steel part of a steel column via a bulging obstacle part, the cutting machine And a mounting jig detachably attached to the steel portion, and a cutting machine main body, wherein the mounting jig is a horizontally long mounting long plate disposed across the width direction of the steel frame column; A side long plate provided with a pressure welding bolt which is disposed from both ends of the mounting long plate to the side of the steel frame column and has a pressure welding bolt pressable to the side, and between the side long plates And an auxiliary long plate provided on the opposite side of the steel portion and provided with a second pressure welding bolt capable of being pressed against the opposite side, and a plate with a locking groove provided on the attachment long plate. the cutting machine body includes a pivot post to freely engaging rotate with the locking groove, the coupling plate to the pivoting strut Provided across between the front plate that is provided through a mounting portion of the magnet removably mounted to the steel section, and the rail guide column provided in unit with said mounting, and said front plate and said rail guide column A rail for movement, a guide portion movable along the rail for movement, a mounting substrate connected to the guide portion and having a cutting opening for passing the projection at the center, and the mounting A drive motor provided on the substrate, driven in conjunction with driving of the drive motor, a drive roller provided on the attachment substrate, a pair of driven rollers provided on the attachment substrate relative to the drive roller, and And a cutter rotated by the driven roller and the drive roller.

In addition, the locking grooves are provided at a plurality of places on the plate at appropriate intervals;
A long hole is formed in the connecting plate, a screw is screwed into the long hole, and the front plate is attached to the connecting plate;
Is included.

According to the cutting machine according to the present invention, the work for cutting the protrusions protruding at the upper and lower two places through the bulging obstacle part is performed with the following work procedure, thereby improving work efficiency and efficiency. Can be done.
First, the cutting machine is opposed to the upper protrusion, the pressure welding bolt is pressed against the side of the steel part, and the attachment part is adsorbed to the steel part, and then the upper protrusion is cut. Then, while removing an attaching part, a cutting machine main body is lifted centering | focusing on the rotation support | pillar latched by the latching groove, and it separates from a steel part. And after moving a mounting board | substrate below so that a cutter may exceed an obstruction part, an attachment part is made to adsorb | suck to a steel part facing a protrusion of a lower part, and the cutting | disconnection operation | work of the said lower protrusion is performed.
That is, in a state in which the pressure welding bolt is always in pressure contact with the side portion of the steel portion, the upper and lower projections can be continuously cut. Therefore, it is not necessary to repeat the attachment and removal work of the four attachment parts as in the conventional example, and the cutting work can be omitted, so that the cutting work can be performed efficiently with good workability. Play an effect.

In addition, when the mounting jig consists of a mounting long plate, a side long plate, and an auxiliary long plate, and is disposed so as to surround the steel frame column, the mounting state of the mounting jig is strong and shaking or rattling It has the excellent effect of becoming stable without sticking.

  The locking grooves are provided at a plurality of locations on the plate at appropriate intervals, so that the locking groove rotates in accordance with the situation at the work site such as when the protrusions are long or when the distance between the protrusions is long. The excellent effect that the post can be locked in the optimal locking groove is achieved.

  A long hole is formed in the connecting plate, and it is possible to adjust the mounting position by shifting the long hole up and down by screwing a screw into the long hole and attaching the front plate to the connecting plate. It is possible to adjust the position of the machine body, and as a result, it is possible to achieve an excellent effect that the cutter can be adjusted to the optimum position.

It is a top view of the cutting machine 21 which concerns on this invention. It is a side view of the cutting machine 21 which concerns on this invention. It is the sectional view on the AA line of FIG. It is a front view of the cutting machine 21 which concerns on this invention. 3 is a side view of the mounting jig 22. FIG. 3 is a plan view of the mounting jig 22. FIG. 3 is a front view of the mounting jig 22. FIG. FIG. 6 is a side view of a cutting machine main body 23; 3 is a plan view of a cutting machine main body 23. FIG. 3 is a front view of a cutting machine main body 23. FIG. It is a side view explaining the use condition of the cutting machine. It is a side view explaining the use condition of the cutting machine. It is a side view explaining the use condition of the cutting machine. It is a top view of the cutting machine 51 of 2nd Example. It is the BB sectional view taken on the line of FIG. It is a front view of the cutting machine 51 of 2nd Example. It is a perspective view of the cutting machine 1 which concerns on a prior art example. It is a perspective view of the cutting machine 1 which concerns on a prior art example. It is a perspective view explaining the use condition of the cutting machine 1 which concerns on a prior art example. It is a perspective view of the steel frame pillar 12 explaining the obstacle part 14 and protrusion 13a, 13b.

  Next, embodiments of the present invention will be described with reference to the drawings. First, in FIGS. 1 to 4, reference numeral 21 denotes a cutting machine. The cutting machine 21 includes an attachment jig 22 that is detachably attached to the steel portion 12 a of the steel column 12 and a cutting machine body 23. .

  The cutting machine 21 will be described later when cutting the protrusions 13a and 13b protruding from the upper and lower two places through the bulging obstacle portion 14 in the steel column 12 standing as shown in FIG. By performing according to the work procedure, it is possible to efficiently cut with good workability.

  As shown in FIGS. 5 to 7, the mounting jig 22 includes a horizontally long mounting long plate 24 disposed across the width direction of the steel column 12, and both ends 24 a of the mounting long plate 24. Side plates 25 respectively provided along the side portions 12 b, press-contact bolts 26 provided on the end portions of the side plates 25 and press-contactable to the side portions 12 b of the steel column 12, and locking grooves provided in the attachment long plate 24 40 and a plate 39.

The attachment long plate 24 is formed in a long shape, and the side plate 25 is fixed with two bolts 24b at both end portions 24a thereof.
The side plate 25 is formed in a plate shape, and a pressure welding bolt 26 is screwed to the end side thereof, and the pressure welding bolt 26 can be pressure-contacted to the side portion 12 b of the steel column 12.

Two plates 39 are provided at a substantially central portion of the mounting long plate 24. The plate 39 is formed with locking grooves 40 at appropriate intervals. As described above, since the locking grooves 40 are provided in two places on the plate 39, the situation of the work site such as when the protrusions 13a and 13b are long or when the distance between the protrusions 13a and 13b is long is obtained. In combination, the pivoting support 27 can be locked in the optimal locking groove 40.
In addition, the code | symbol 41 in FIG. 6 has shown the holding | maintenance board holding the space | interval of plate 39 comrades.

  As shown in FIGS. 8 to 10, the cutting machine main body 23 is provided with a rotating support 27 rotatably engaged with the locking groove 25 and a front plate 29 provided on the rotating support 27 via a connecting plate 28. A pair of magnet-type attachment portions 30 that are detachably attached to the steel portion 12a, a rail guide post 31 provided on the attachment portion 30, and a pair of rail guide posts 31 provided between the rail guide post 31 and the front plate 29. The moving rail 32, the guide portion 33 movable along the moving rail 32, the mounting substrate 34 connected to the guiding portion 33, the drive motor 35 provided on the mounting substrate 34, and the drive motor 35 Drive in conjunction with the drive substrate 36, the pair of driven rollers 37 provided on the mounting substrate 34 relative to the drive roller 36, the driven roller 37 and the drive roller 36 rotate. Composed from the cutter 38. that.

  The pivoting support 27 is formed in a tubular shape having a predetermined length, and a ring-shaped retaining portion 42 is provided in the middle thereof. The presence of the retaining portion 42 prevents the rotation support column 27 from falling off from the locking groove 25.

  An L-shaped connecting plate 28 is provided at both ends of the rotating support column 27, and a long hole 43 is formed in the connecting plate 28 (see FIG. 10). The front plate 29 is attached to the connecting plate 28 by screwing the screw 44 into the long hole 43.

  As shown in FIG. 10, the front plate 29 has a substantially rectangular shape. As described above, the screws 44 are screwed into the long holes 43 of the connecting plate 28, and the front plate 29 is attached to the connecting plate 28. It is attached. Therefore, the mounting position can be adjusted by sliding the long hole 43 up and down, so that the position adjustment of the cutting machine main body 23 can be performed, and as a result, the cutter 38 can be adjusted to the optimum position. it can.

  Further, at the central portion of the front plate 29, an opening 29a having substantially the same shape as the cutting opening 46 described later is formed. The opening 29a is a gap for passing the protrusions 13a and 13b.

  The mounting portion 30 is formed in a box shape and has a magnet type or electromagnet type adsorption portion 30c at the lower portion. Then, the steel portion 12a can be firmly adsorbed or removed by the ON / OFF operation of the switch 30a.

  Further, a mounting plate 30 b is provided at the upper portion of the mounting portion 30, and the rail guide support 31 is erected via the mounting plate 30 b.

  The rail guide support 31 is formed in a flat plate shape, and stands upright on the top of each mounting plate 30b. Further, a side portion 31 a is formed in the middle of the rail guide support 31.

  The moving rail 32 is provided between the rail guide column 31 (side portion 31 a) and the front plate 29, and the moving rail 32 has a guide movable along the moving rail 32. The part 33 is attached.

  The guide portion 33 is formed in a substantially U shape so as to surround the inner side and the upper and lower portions of the moving rail 32 so that the guide portion 33 can move while sliding along the moving rail 32. It has become.

  The mounting substrate 34 is formed in a predetermined size, and the side portion of the mounting substrate 34 is connected to the guide portion 33 as shown in FIGS. 1, 2, 8, and 9. The mechanism moves with the movement of the guide portion 33. Further, a cutting opening 46 for passing the protrusions 13a and 13b is formed at the central portion of the mounting substrate 34 (see FIG. 10).

  As shown in FIG. 10, the cutting opening 46 has an edge 46 a formed vertically. Therefore, the projections 13a and 13b which vertically project along the edge 46a can be cut reliably.

  The drive motor 35 is provided on the mounting substrate 34, and an operation of driving and stopping is performed by an ON / OFF switch (not shown).

  The drive roller 36 is configured to be driven in conjunction with the drive of the drive motor 35, and is provided on the mounting substrate 34. Further, the drive roller 36 is formed of a pulley formed to be smaller than the driven roller 37, and a rotary cutter 38 is wound around so as to be transmitted to the driven roller 37.

  The driven roller 37 is provided on the mounting substrate 34 so as to face the driving roller 36. The driven roller 37 and the drive roller 36 are disposed such that the cutter 38 is orthogonal to the protrusions 13a and 13b.

  The cutter 38 is a wire-type rotary cutter, for example, a wire saw, and is rotated at high speed via the drive roller 36 and the driven roller 37.

  Next, as shown in FIG. 20, using the cutting machine 21 as described above, the operation procedure for cutting the protrusions 13a and 13b protruding at the two upper and lower positions via the bulging obstacle portion 14. Will be explained.

First, as shown in FIG. 11, the pressing bolt 26 is pressed against the side portion 12b of the steel frame column 12 while facing the projection on the upper portion 13a, and the mounting portion 30 is attracted to the steel portion 12a. The motor 35 is driven to rotate the cutter 38 at high speed. The lowered (see arrow C) along the movement rails 32 mounted substrate 34 by its own weight, the cutter 38 when cutting the opening 46 of the mounting substrate 34 is passed through the projections 13a cuts the protrusions 13a .

  Next, as shown in FIG. 12, the attachment portion 30 is removed, and the cutting machine main body 23 is lifted around the rotating column 27 locked in the locking groove 25 to be separated from the steel portion 12a (arrow). See D). Then, the mounting substrate 34 is moved downward so that the cutter 38 exceeds the obstacle 14 (see arrow E).

  Further, as shown in FIG. 13, the mounting portion 30 is adsorbed to the steel portion 12a in opposition to the lower protrusion 13b, and the cutting operation of the lower protrusion 13b is performed in the above-described manner.

  In this manner, the protrusions 13a and 13b at the two upper and lower portions can be continuously cut in a state where the pressure-contact bolt 26 of the mounting jig 22 is pressed against the side portion 12b of the steel column 12, so that the conventional 4 There is no need to repeat the mounting and dismounting work of the mounting portion 2 at the place, and the moving work of the cutting machine can be omitted, so the work can be performed efficiently and efficiently.

  Next, the cutting machine 51 of 2nd Example shown in FIGS. 14-16 is demonstrated. About the cutting machine 51, the same code | symbol is attached | subjected to an identical part as said 1st Example, and the detail is abbreviate | omitted.

  The attachment jig 52 of the cutting machine 51 includes a horizontally long attachment long plate 53 disposed across the width direction of the steel column 12, and from both ends 53 a of the attachment long plate 53 to the side portion 12 b of the steel column 12. It consists of the side long boards 54 arrange | positioned respectively, and the auxiliary long board 55 arrange | positioned across the side long boards 54 at the opposite side 12c of the steel part 12a (refer FIG. 16).

  The mounting long plate 53 is formed in a long shape, and the side long plate 54 is fixed by two bolts 53 b at both end portions 53 a thereof.

The side long plate 54 is formed in a long plate shape, and a pressure welding bolt 58 is screwed in the middle so that the pressure welding bolt 58 can be pressure welded to the side 12 b of the steel frame column 12.
Two groove portions 56a and 56b are formed on the end portion 54a side of the side long plate 54, and the auxiliary long plate 55 is fixed by a bolt 57 in the groove portion 56a or the groove portion 56b.
In addition, what is necessary is just to select the site | part suitable for the groove part 56a or the groove part 56b to which the volt | bolt 57 is screwed according to the length of the side part 12b of the steel column 12. FIG.

The auxiliary long plate 55 is screwed with two second pressure welding bolts 59 in the middle, and the second pressure welding bolts 59 can be pressed against the opposite side 12c of the steel portion 12a.
The structure and method of use of the cutting machine body 23 are the same as those of the first embodiment.

In the cutting machine 51 as described above, the attachment long plate 53 is disposed across the width direction of the steel column 12 and the side long plate 54 is disposed on the side portion 12b of the steel column 12 relative to the upper projection 13a. The pressure welding bolts 58 are press-contacted to the side portions 12 b of the steel frame columns 12 so as to be disposed across.
Similarly, the auxiliary long plate 55 is disposed on the opposite side 12c of the steel portion 12a, and the second pressure welding bolt 59 is pressed against the opposite side 12c.

  As described above, the mounting long plate 53, the side long plate 54, and the auxiliary long plate 55 of the mounting jig 52 are disposed so as to surround the steel column 12, so that the mounting state of the mounting jig 52 is strong. It becomes stable without shaking or rattling.

DESCRIPTION OF SYMBOLS 1 cutting machine 2 mounting part 3 rail guide support 4 moving rail 5 moving roller 6 cutting opening 7 mounting substrate 8 driving motor 9 driving roller 10 driven roller 11 cutter 12 steel frame pillar 12a steel part 12b side part 12b opposite side 13, 13a , 13b protrusion (object to be cut)
14 Failure part 21 Cutting machine 22 Mounting jig 23 Cutting machine main body 24 Mounting long board 24a end 24b bolt 25 Side board 26 Pressure welding bolt 27 Rotation support 28 Connection board 29 Front board 29a opening 30 Mounting part 30a switch 30b mounting board 30c suction unit 31 rail guide support 31a side 32 moving rail 33 guide unit 34 mounting board 35 drive motor 36 drive roller 37 driven roller 38 cutter 39 plate 40 locking groove 41 holding plate 42 retaining portion 43 long hole 44 screw 46 Cutting opening 46a edge 51 Cutting machine of the second embodiment 52 Mounting jig 53 Mounting long plate 53a end 53a end 53a bolt 53 Side long plate 54a end 55 Auxiliary long plate 56a, 56b Groove 57 Bolt 58 For pressure welding Bolt 59 Second pressure welding bolt

Claims (4)

A cutting machine capable of continuously cutting the protrusions provided at two locations through the bulging obstacle part on the steel part of the steel column,
The cutting machine is composed of a mounting jig which is detachably attached to the steel part, and a cutting machine main body,
The mounting jig is
A horizontally long mounting long plate disposed across the width direction of the steel frame column;
Side plates provided along both sides of the steel frame column from both ends of the mounting long plate;
A pressing bolt provided on the side plate and capable of pressing on the side of the steel column;
And a plate with a locking groove provided on the mounting long plate,
The cutting machine body is
A pivot post pivotally engaged with the engagement groove;
A front plate provided on the pivotal support via a connecting plate;
A magnet type attachment part detachably attached to the steel part;
A rail guide post provided to the mounting portion;
A moving rail provided between the rail guide post and the front plate;
A guide portion movable along the movement rail;
A mounting substrate continuous with the guide portion and having a cutting opening at a central portion for passing the projection;
A drive motor provided on the mounting substrate;
A drive roller driven in conjunction with the drive of the drive motor and provided on the mounting substrate;
A pair of driven rollers provided on the mounting substrate in opposition to the driving roller;
A cutting machine comprising: a cutter rotated by the driven roller and the drive roller. A cutting machine capable of continuously cutting the protrusions provided at two locations through the bulging obstacle part on the steel part of the steel column,
The cutting machine is composed of a mounting jig which is detachably attached to the steel part, and a cutting machine main body,
The mounting jig is
A horizontally long mounting long plate disposed across the width direction of the steel frame column;
A side long plate provided with pressure welding bolts that can be pressure-contacted to both sides of the mounting long plate from both ends of the steel column, respectively.
An auxiliary long plate provided with a second pressure welding bolt that is disposed on the opposite side of the steel portion across the side long plates, and that can be pressed against the opposite side ;
And a plate with a locking groove provided on the mounting long plate,
The cutting machine body is
A pivot post pivotally engaged with the engagement groove;
A front plate provided on the pivotal support via a connecting plate;
A magnet type attachment part detachably attached to the steel part;
A rail guide post provided to the mounting portion;
A moving rail provided between the rail guide post and the front plate;
A guide portion movable along the movement rail;
A mounting substrate continuous with the guide portion and having a cutting opening at a central portion for passing the projection;
A drive motor provided on the mounting substrate;
A drive roller driven in conjunction with the drive of the drive motor and provided on the mounting substrate;
A pair of driven rollers provided on the mounting substrate in opposition to the driving roller;
A cutting machine comprising: a cutter rotated by the driven roller and the drive roller. The cutting machine according to claim 1, wherein the locking groove is provided at a plurality of locations on the plate with appropriate intervals. 3. The structure according to claim 1, wherein a long hole is formed in the connection plate, a screw is screwed into the long hole, and the front plate is attached to the connection plate. 4. Cutting machine.

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