JPH081787Y2 - Groove cutting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a groove cutting device for a columnar work having a welded structure.

[Prior Art] For example, in manufacturing a long column 71 having a welded structure as shown in FIG. 14 which is used as a base column of a high-rise building, a flange is used.
Webs 73, 73 are welded between both ends of 72, 72 as shown by a welded portion W, and an appropriate number of plates 74 are provided inside for reinforcement.

To weld this plate 74 to the flanges 72, 72, generally, an elongated plate is attached to the flange 72 as shown in FIG.
75, 75 are welded together to sandwich the plate 74, a space A is defined between the plate 74 and the flange 72, the space A is filled with a welding material, and a plate 74 is provided at the end of the welding material as indicated by a chain line. 75,
It covers 75 and the sides of the flange 72. Therefore, the top portion B of the molten material projects from the end surface 72a of the flange 72.

To weld the web 73 to the flange 72 in this state,
As shown in Figures 16 and 17a to 17c, the web
A groove 73a is formed on the edge of 73, and flat portions 73b and 73b are formed.
And the notch 73c are formed. In addition, in the illustrated example, the groove 73a
Is 45 ° and the dimension C is usually 100 to 150 mm.
Then, as shown in FIG.
c and the end surface 73a of the web 73 are projected, a groove similar to the groove 73a is formed in the top B and the flat surfaces 73b, 73b by a tool, and then the web 73 and the flange 72 are welded. .

[Problems to be Solved by the Invention] Since the formation of the groove by the conventional tool is mainly performed by hand, workability is poor and it takes a long time.

Therefore, the applicant of the present invention has proposed, in Japanese Patent Application No. 63-58491, a groove cutting device for efficiently forming a groove.

According to the present proposal, a gantry that holds both sides of a columnar work having a welded structure, is fixed to the work, and is movable on the work, and a unit provided on the gantry so as to be movable in the longitudinal direction of the work. A base, a cutting unit in which a vertical rotary shaft is vertically movable on the base, a cutting cutter attached to the vertical rotary shaft, and a horizontal rotary shaft is vertically moved in the base and moves in the width direction of the work. A freely provided groove cutting unit and a groove cutting cutter attached to the horizontal rotary shaft are provided.

In the groove cutting device configured as described above, the work is clamped by the gantry and fixed to the work, the base is moved, the cutting unit operates the grooving unit, and the top of the molten material protruding by the cutting cutter Is cut off, and then a groove is formed between the cut-off portion of the molten material and the flat surface portion of the web by the groove cutting cutter.

The above proposal itself is effective in efficiently forming the groove, but when the shape of the groove is different,
Since the grooving cutter must be replaced each time, the operating rate decreases.

As a related technology of the present invention, in Japanese Utility Model Publication No. 55-107916, H-shaped steel plate is pressed by using a pressing portion of a spindle, a groove and a scallop cutter are attached to a horizontal spindle, and a screw of a horizontal axis is attached. A groove and scallop compound machine that can be moved toward and away from each other in parallel direction is described by this technology, but this technology is to process the groove and scallop at the same time by adjusting the pitch interval of the tip of the horizontal spindle according to the flange width. However, the workability as a whole was not sufficient.

An object of the present invention is to provide a groove cutting device that efficiently forms a groove having an arbitrary shape.

[Means for Solving the Problem] According to the groove cutting device of the present invention, a gantry on which a columnar work having a welded structure is movably mounted, and a movably provided on the gantry in the longitudinal direction of the work. A unit base, a cutting unit in which a vertical rotation shaft is vertically movable on the unit base, a cutting cutter attached to the vertical rotation shaft, and a rotation shaft tilted, vertically moved, and A groove cutting device provided with first and second grooving units movably provided in the width direction and first and second grooving cutters respectively attached to the rotary shafts, A stand is erected on each of the pair of unit bases provided so as to sandwich the work, and a vertically movable table is provided on the upper part of the stand.
Further, a horizontal moving table is movably supported on the vertical moving table in a direction orthogonal to the work, and the cutting unit is provided on the horizontal moving table, and two pairs of stands are provided on the unit base. The plate is erected perpendicularly to the work, and each stand plate has
An arcuate cam groove centered on the lowermost part when the work side groove cutting cutter is at a fixed position is engraved, and a base plate is rotatably supported in the cam groove via a cam follower, and on the base plate. A horizontal moving table movable in the work width direction is arranged on each of the two vertical moving tables arranged, and first and second groove cutting units are provided on the horizontal moving table.

[Operation] In the groove cutting device configured as described above, the work piece is placed on the gantry, the unit base is moved, and the cutting unit and both grooving units are operated to cause the molten material to be projected by the cutting cutter. Cut off the top of the
The first groove-cutting cutter cuts the first groove along one surface forming a groove in the cut-off portion of the molten material and the flat surface of the web, and then the second groove-cutting cutter cuts the other of the groove. The second groove is cut along the surface of the groove, and the groove is formed by these first and second grooves. Next, the work is moved to the next cutting position and the same processing as described above is performed.

Further, with respect to the groove of different shape, the first and second rotating shafts are inclined, and the cutting surfaces of the first and second groove cutting cutters are matched with the groove shape to perform the cutting work.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 5, the cutting device is provided with a gantry indicated by reference numeral 1 as a whole, unit bases 10 and 10 movable on the gantry 1 in the longitudinal direction of the work W, and on each unit base 10. In addition, it is roughly composed of a cutting unit, a first grooving unit and a second grooving unit, which are entirely indicated by reference numerals 40, 50 and 60.

A work table 2 is erected on the center line of the frame 1 in the longitudinal direction, and a roller conveyor 3 is provided on the upper surface of the table 2. A pair of bases 4, 4 are provided on both sides of the work stand 2, and the bases 4, 4 are provided.
A unit base 10 is provided slidably in the longitudinal direction of the work W, and is moved by the motor unit 5.

On each unit base 10, a cutting unit 40, a first grooving unit 50, and a second grooving unit 60 are provided in order from one side (the right side in the example of the drawing). Further, in FIG. 3, reference numeral H is a handle for moving the stand 11 in the left-right direction in the drawing.

6 to 8, a stand 11 is erected on the unit base 10, and a vertically movable table 12 is supported by four guide posts 13 on the upper part of the stand 11 and fixed to a vertically movable handle 14. The two worm shafts 16 that mesh with the screw shaft 15 that is installed are moved up and down.

A horizontal moving table 17 is movably supported on the vertical moving table 12 in a direction orthogonal to the work W by a screw shaft 19 fixed to a horizontal moving handle 18, and a cutting unit 40 is mounted on the horizontal moving table 17. Is provided.

The rotating shaft 41 of the cutting unit 40 is arranged vertically, a cutting cutter 42 is attached to the lower end of the rotating shaft 41, and is driven by a motor unit 46 via a belt 44 and a pulley 45 by a pulley 43 attached at the upper end. It has become so.

9 to 11, the unit base 10 is shown.
A pair of stand plates 20, 20 are erected on the work W so as to be orthogonal to the work W. Each stand plate 20
The arcuate cam grooves 21a, 21b centering on the lowermost part when the second groove cutting cutter 62, which will be described later, is in a fixed position are formed on the workpiece W side. An upward U-shaped base plate 22 is supported in the cam grooves 21a and 21b so as to be rotatable around a fixed point P via cam followers 23a and 23b. A guide rail 24 is projectingly provided on the lower surface of the base plate 22, and the guide rail 24
A screw shaft 26 is pivotally attached to a slide piece 25 that can slide freely. The screw shaft 26 extends downward and penetrates the unit base 10.
A worm gear 27 that is screwed onto the screw shaft 26 is rotatably provided on the upper surface portion of the. The base plate 10 has a screw shaft 28 that meshes with the worm gear 27.
Is supported by pillow blocks 29, 29, and a tilting handle 30 is attached to the end of the screw shaft 28. Therefore, when the tilting handle 30 is rotated, the base plate 22 is centered around the fixed point P via the screw shaft 28, the worm gear 27, the screw shaft 26, the slide piece 25, the cam grooves 21a and 21b and the cam followers 23a and 23b as shown in FIG. In addition, it is configured to be rotated within a range of a predetermined angle (20 ° in the illustrated example) from a position 22a indicated by a two-dot chain line to a position indicated by a solid line.

On the base plate 22, there are two vertical moving tables 31.
Up and down handles 33 supported by book guide posts 32
Two worm shafts 35 meshing with a screw shaft 34 fixed to the above are vertically moved.

On this vertical movement table 31, a horizontal movement table 36 is movably supported by a screw shaft 38 fixed to a horizontal movement handle 37 in a direction orthogonal to the work W, and a second movement table 36 is mounted on the horizontal movement table 36. A grooving unit 60 is provided.

In FIG. 12, the rotary shaft 61 of the second groove cutting unit 60 is shown.
Is horizontally arranged on a horizontal moving table 36, a second groove cutting cutter 62 is attached to one end of a rotary shaft 61, and a motor unit is attached via a belt 64 and a pulley 65 by a pulley 63 attached to the other end. It is driven by 66.

As shown in FIG. 5, the first groove cutting unit 50 is supported on the stand plate 20a in the same manner as the second groove cutting unit 60, and the rotary shaft 51 thereof has the first groove cutting cutter 52 attached thereto. There is.

Then, the first and second groove cutting cutters 52, 62 are vertically
The second groove cutting cutter 62 is inclined with respect to the first groove cutting cutter 52 so that a groove is formed by the opposing outer surfaces of the cut grooves of both cutters 52, 62.

At the time of processing, as shown in FIG. 13a, the cutting cutter 42 cuts the top B of the molten material protruding from the end surface 72a of the flange 72. Next, as shown in FIG. 13b, the unit base 10 is moved, and the cut-out portion and the flat surface portions 73b and 73b (FIG. 18) of the molten metal are cut by the first groove cutting cutter 52 along the inner surface of the flange 72 and the web 73. The first groove a having a thickness of is cut. Then, the unit base 10 is moved to incline the second groove cutting cutter 62 toward the web 73 side with respect to the first groove a and to reach the bottom of the first groove a as shown in FIG. 13c. Groove b
And the groove 73 is cut by the opposing outer surfaces of these grooves a and b.
form a. The shape of this groove 73a, that is, the groove angle is
The inclination of the second groove cutting cutter 62 can be changed, and if necessary, the first groove cutting cutter 52 can be inclined and set arbitrarily.

[Effects of the Invention] As described above, the present invention has the following excellent effects.

(1) The groove is formed very easily by the cutting cutter of the cutting unit provided on the unit base and the first and second groove cutting cutters of the first and second groove cutting units, and the inclination of both groove cutting cutters By changing the angle and forming the groove corresponding to any groove shape, it is possible to improve the workability of manufacturing the long column of the welded structure.

(2) Since it is not necessary to move the work during cutting, it is safe and the work accuracy is high. It is also highly versatile.

[Brief description of drawings]

FIG. 1 is a top view showing an embodiment of the present invention, and FIG.
FIG. 3 is a view taken along the line AA of FIG.
The drawing is a view taken along the line CC of FIG. 2, and FIG. 5 is the drawing D-D of FIG.
FIG. 6 is a top view showing the cutting unit, FIG. 7 is a view taken in the direction of arrow E in FIG. 6, FIG. 8 is a view taken in the direction of arrow F of FIG.
The figure shows a side view of the second groove cutting unit, and Fig. 10 shows the ninth.
Drawing which shows the detail of the principal part of a figure, Drawing 11 is a side view of Drawing 10,
FIG. 12 is a side view for explaining the tilting state of the second groove cutting unit, FIG. 13a is an explanatory view for cutting the top of the molten material, and 13b.
Figures and 13c are explanatory views when cutting the first and second grooves, respectively, FIG. 14 is a perspective view of a long column, FIG. 15 is an explanatory view of a welding process of a flange and a plate, and FIG. 16 is A plan view of the edge of the web, FIGS. 17a, 17b and 17c are sectional views taken along the lines I-I, II-II and III-III of FIG. 16, respectively, and FIG. It is a perspective view showing the state before welding with a flange. W ... Work, 1 ... Stand, 2 ... Work rest, 3 ...
… Roller conveyor, 10… Unit base, 20, 20a…
… Stand plates, 21a, 21b …… Cam grooves, 22a, 22b…
… Cam follower, 30 …… Tilt handle, 40 …… Cutting unit, 41 …… Rotating shaft, 42 …… Cutting cutter, 50 …… First grooving unit, 51 …… Rotating shaft, 52 …… First groove Cutting cutter, 60 …… Second groove cutting unit, 61 …… Rotary shaft, 62
...... Second groove cutting cutter

Claims (1)

[Scope of utility model registration request] 1. A gantry (1) on which a columnar work (W) having a welded structure is movably mounted, and a unit base (movable on the gantry (1) movably in the longitudinal direction of the work (W). 10), a cutting unit (40) in which a vertical rotation shaft is vertically movable in the unit base (10), a cutting cutter (42) attached to the vertical rotation shaft, and the unit base (10). First and second rotary shafts provided so as to tilt, move up and down, and move in the width direction of the work (W).
Grooving unit (50, 60) and first and second grooving cutters (52, 6) attached to the rotary shafts, respectively.
2) is provided, and a stand (11) is provided upright on each of the pair of unit bases (10) provided with the work (W) interposed therebetween, and the stand (11) is provided. A vertical movement table (12) is provided on the upper part of the table, and a horizontal movement table (17) is movably supported on the vertical movement table (12) in a direction orthogonal to the work (W). The horizontal movement table (17) is provided with the cutting unit (40), and the unit base (10) is also provided.
On the upper side, two pairs of stand plates (20, 20a) are erected orthogonally to the work (W), and each stand plate (20, 20a) has a groove cutter (5) on the work (W) side.
2, 62) are engraved with arc-shaped cam grooves (21a, 21b) centered on the lowermost part when the cam grooves (21
The base plate (22) is attached to the cam follower (23
a and 23b) are rotatably supported and a horizontal movement table (36) movable in the work width direction is arranged on a vertical movement table (31) arranged on the base plate (22). A groove cutting device, wherein the horizontal moving table (36) is provided with first and second groove cutting units (50, 60), respectively.