JPH081786Y2 - 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, when producing a long column 1 having a welded structure as shown in FIG. 6 which is used as a base column of a high-rise building, webs 3 are welded between both ends of flanges 2 and 2. It is welded as indicated by W, and an appropriate number of plates 4 are provided inside for reinforcement.

To weld the plate 4 to the flanges 2 and 2, usually, as shown in FIG. 7, elongated plates 5 and 5 are welded to the flange 2 to sandwich the plate 4, and the plate 4 and the flange 2 are sandwiched. A space A is defined in the space A, the space A is filled with the melted material, and the plates 4, 5, as shown by the chain line at the end of the melted material,
5 and the side surface of the flange 2 are covered. Therefore, the top portion B of the molten material projects from the end surface 2a of the flange 2.

To weld the web 3 to the flange 2 in this state, as shown in FIGS. 8 and 9a to 9c,
A groove 3a is formed at the edge of the flat surface 3b, 3b and a notch 3c. In the illustrated example, the groove 3a is 45 °,
Dimension C is usually 100 to 150 mm. And
As shown in FIG. 10, the top portion B of the molten material is projected from the cutout portion 3c and the end surface 2a of the web 2, and the top portion B and the flat surface portion are formed by a tool.
After forming a groove similar to the groove 3a in 3b and 3b, the web 3 and the flange 2 are welded to each other.

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 A groove and scallop compound machine that can move toward and away from each other in the parallel direction is described by this technology, but this technology processes 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.

Furthermore, the eye plate cutting device disclosed in Japanese Utility Model Laid-Open No. 60-109807 as a related art of the present invention is provided with a rotary cutting blade on a slide base mounted on a movable and vertically movable base, Moreover, a movable magnet is provided on the base, and only the front, rear, left, right, and upper and lower support devices of the rotary cutting blade are shown.

[Problems to be Solved by the Invention] The present invention was developed in order to solve the above-mentioned problems of the prior art, and can efficiently and accurately form a groove.
It is intended to provide a groove cutting device that can be safely performed.

[Means for Solving the Problems] According to the groove cutting device of the present invention, a pedestal that holds both sides of a columnar work having a welded structure and can be fixed to the work and is movable on the work, and the pedestal. A unit base movably provided in the longitudinal direction of the workpiece, a cutting unit in which a vertical rotation shaft is vertically movable in the unit base, a cutting cutter attached to the vertical rotation shaft, and the unit. A groove cutting unit in which a horizontal rotation shaft is vertically movable on the base and movable in the width direction of the work,
A groove cutting device provided with a grooving cutter attached to the horizontal rotary shaft, wherein the gantry has a pair of bases arranged on both sides of a work piece having U-shaped side surfaces and an H-shaped plane. The base is provided with a unit base slidably in the longitudinal direction of the work through the horizontal part of the base, and the bottom of the base is rolled in the width direction of the work. Movable moving wheels are provided, a table is provided on a guide rail provided on the unit base so as to be slidable in the vertical direction, and the cutting unit is provided on an upper portion of the table. Another table is provided in the guide groove formed in the base so as to be slidable in the vertical direction, and the groove cutting unit is provided above the other table.

[Operation] 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, and the cutting unit and the grooving unit are operated to project by the cutting cutter. The top of the molten material is cut off, and then a groove is formed in the cut-off portion of the molten material and the flat surface portion of the web with a grooving cutter. Then, the base is unfixed, the device is moved to the next cutting position, and the same processing as described above is performed.
When cutting the groove, the groove cutting unit is moved up and down, right and left, and the cutting is performed several times.

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

In FIG. 1 to FIG. 3, the cutting device is entirely denoted by reference numeral.
The structure is generally composed of a gantry indicated by reference numeral 10, a unit base 26 which is movable on the gantry 10 in the longitudinal direction of the work D, and a cutting unit and a grooving unit which are provided on the base 26 and are indicated by reference numerals 36 and 40. Has been done.

The pedestal 10 has a pair of bases 11 and 11 of which side faces are arranged on both sides of the work D, and a brace 19 whose plane is H-shaped.
And more generally. An opening 11a is formed inside the upper end of the pillar portion 11A of the base 11, and both ends of the brace 19 are inserted into the opening 11a, and one end of the brace 19 is in the one opening 11a. It is bolted. In addition, a right-handed screw flange 12a and a left-handed screw flange 12b are provided to be opposed to each other at the inner part of the opening 11a. These screw flanges 12a, 12b are screwed with screw shafts 13, 13 having right and left threads formed at both ends, and one of these screw shafts is projected to the outside of one of the column parts 11A. A pedestal width adjustment handle 14 is attached to the protruding end.
Also, in the center of the screw shafts 13 and 13, sprockets are
15 is fixed, and these sprockets 15 and 15 are chained.
16 are wound. Therefore, when the handle 14 is rotated, the screw shafts 13 and 13 are synchronously rotated via the chain 16, and the distance E between the pillar portions 11A of the base 11 is set to the width of the work D via the screw flanges 12a and 12b. The pedestal 10 can be fixed to the work D by fine adjustment with the adjusting screw 17. Further, moving wheels 18 that can roll in the width direction of the work D are provided at the bottom of the base 11.

On the other hand, magnets 21 are provided at both ends substantially in the center of the brace 19 in the work width direction so as to face the work D via brackets 20. On both sides of the bracket 20, running tires 22, 22 shown in detail in FIG. 4 are provided, and a running tire shaft 23 supporting these running tires has a brace 19
A nut up and down moving handle 25 is attached to the upper end of the nut 24, which is screwed into a nut 24 fixed to the. Therefore, when the handle 25 is rotated and the tires 22 and 22 are pulled up, the moving wheel 18 abuts on the floor, the magnet 21 is attracted to the work D, and conversely, the tires 22 and 22 are lowered to abut the work D. Then, the magnet 21 separates from the work D, and the moving wheels 18 separate from the floor.
Can be moved along the upper surface of the work D.

As shown in the figure, a unit base 26 is slidably provided in the longitudinal direction of the work D on the base 11 via a horizontal portion 11B connecting the pillar portions 11A and 11A, and a stroke of, for example, 150 mm by a motor unit 29. It is supposed to be moved in. Opposing guide rails 27a and 27b and guide grooves 28a and 28b are formed in the width direction of the work D of the base 26. A table 30 is provided slidably in the vertical direction on the guide rails 27a and 27b, and is vertically moved by a vertical movement handle 31. Also, the guide grooves 28a, 2
8b, a guide rail 32 connected by means not shown,
32 is slidable in the horizontal direction, and horizontal movement handle 33
It is designed to be moved horizontally by. On the guide rails 32, 32, another table 34 is provided slidably in the vertical direction, and is vertically moved by a vertical movement handle 35.

A cutting unit 36 is provided above the table 30. The rotation axis 37 of the unit 36 is arranged vertically,
A cutting cutter 38 is attached to the tip of the rotary shaft 37 and is driven by a motor unit 39.

A groove cutting unit 40 is provided above the other table 34. The rotary shaft 41 of the unit 40 is arranged horizontally, a groove cutting cutter 42 is attached to the tip of the rotary shaft 41, and is driven by a motor unit 43.
The groove cutting cutter 42 is formed in a cone shape of 45 ° in the illustrated example.

At the time of processing, as shown in FIG. 5a, the top B of the molten material protruding from the end surface 2a of the flange 2 is cut by the cutting cutter 38. Next, the unit base 26 is moved, and as shown in FIG. 5b, the groove 3a is formed in the cut-off portion of the molten material and the flat surface portions 3b, 3b (FIG. 10) by the groove cutting cutter 42.

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

(1) The groove can be formed extremely efficiently by the cutting cutter of the cutting unit and the groove cutting cutter of the groove cutting unit provided on the unit table, and the workability of manufacturing the long column of the welded structure can be improved.

(2) Not only the groove cutting device itself can be moved, but also the cutting cutter and the grooving cutter can be freely moved. Therefore, it is not necessary to move the columnar work, and the work can be performed safely and accurately.

[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.
Fig. 5 is a detailed view around the running tire, Fig. 5a is an explanatory diagram for cutting the top of the molten material, Fig. 5b is an explanatory diagram for groove processing, Fig. 6 is a perspective view of a long column, and Fig. 7 is a flange. Fig. 8a is a perspective view of the welding process of the plate and plate, Fig. 8 is a plan view of the edge of the web,
Figures 9b and 9c are respectively the I-I line of Figure 8,
II-II line and III-III line arrow sectional drawing, FIG. 10 is a perspective view which shows the state before welding of a web and a flange. D: Work, 10: Stand, 11: Base, 14: Stand width adjustment handle, 18 ... Moving wheel, 19 ... Brace, 22 ...
… Running tires, 26 …… unit base, 30 …… table, 31 …… vertical movement handle, 33 …… horizontal movement handle, 34
...... Separate table, 35 ...... Vertical movement handle, 36 ...... Cutting unit, 37 ...... Rotating shaft, 38 ...... Cutting cutter, 40 ...... Grooving unit, 41 ...... Rotating shaft, 42 ...... Grooving cutter

Claims (1)

[Scope of utility model registration request] 1. A gantry (10) which holds both sides of a columnar work (D) having a welded structure and can be fixed to the work (D) and is movable on the work (D), and the gantry (10). A unit base (26) movably provided in the longitudinal direction of the work (D), a cutting unit (36) having a vertical rotation shaft vertically movable on the unit base (26), and the vertical unit. A cutting cutter (38) attached to a rotary shaft, and a groove cutting unit (40) in which a horizontal rotary shaft is vertically movable on the unit base (26) and movable in the width direction of the work.
And a groove cutting cutter (42) attached to the horizontal rotary shaft, wherein the frame (10) has a U-shaped side surface and is arranged on both sides of the work (D). It is composed of a pair of bases (11) and a brace (19) whose plane is H-shaped. The base (11) has a horizontal portion (11).
The unit base (26) is slidably provided in the longitudinal direction of the work (D) via the base (B) and its base (11).
A movable wheel (18) capable of rolling in the width direction of the work (D) is provided on the bottom surface of the table (3), and the guide rails (27a, 27b) provided on the unit base (26) further include a table (3).
0) is provided so as to be slidable in the vertical direction, and the table (30)
The cutting unit (36) is provided on the upper part of the
The guide groove (28) formed in the unit base (26).
a, 28b) is provided with another table (34) slidably in the vertical direction, and the groove cutting unit (40) is provided on the upper part of the other table (34). Bevel cutting device.