JPS6260205B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention particularly relates to an L-shaped shearing machine, and more specifically, the present invention relates to a right-angled L-shaped shearing machine that moves a plate material in two orthogonal directions to perform sheet cutting. The present invention relates to a shearing machine equipped with a shearing machine.

Conventionally, as shown in FIG. 1, in a shearing machine 3 having a right-angled L-shaped ram blade 1, when blanking a plate W longer than the gap depth L of a frame 5, In this case, the plate material W abuts against the frame 5, making it impossible to carry out the cutting process.

For example, the long side of the plate W as shown in FIG.
When processing S ₁ by clamping it, the short side of the plate W is _smaller than the gap depth L of the frame 5.
is longer, so it is possible to machine parts a, b, c, d, and e of the plate material W, but when you try to machine part f, the part g hits the frame 5, so it is difficult to cut the parts. It was impossible to process.

Furthermore, as shown in Fig. 2b, even if the short side S ₂ of the plate material W is clamped and planar processing is performed, if S ₃ >L, the planar processing is performed up to a and b. However, when part c is cut out, there is a problem that part e hits the frame 5, making shearing impossible.

Furthermore, in the case of the embodiment shown in FIG. 2c, if the plate material W is fed in the Y-axis direction (upward in FIG. 2c) beyond the gap L of the frame 5, the end of the plate material W may butt against the frame 5. However, it was not possible to cut out part c.

This invention was devised in view of such conventional problems, and its purpose is to provide one side of the L-shaped blade so as to protrude outside the frame so that it is deeper than the gap depth of the frame. To provide a shearing machine capable of cutting even long plates without interfering with the frame.

Hereinafter, a preferred embodiment of the present invention will be described based on the accompanying drawings.

FIG. 3 shows a main body 11 of a shearing machine embodying the present invention, and this main body 11 has a frame 1.
3, a work table 15 for supporting a plate material (work) W is provided.

A right angle L is formed on one side of the work table 15.
A mold-shaped notch 17 is formed, and this notch 1
7 has a right-angled L-shaped first blade 19a.
and a second blade 19b.

Further, on the other side of the work table 15, there is a plate material W.
A workpiece transfer device 21 is provided for clamping and transferring the workpiece to a shearing position.

This work transfer device 21 includes a carriage 23 that moves on the work table 15 and a work clamp 25 that moves along the carriage 23.
and a feed motor 27 for moving the carriage 23.

Further, on the work table 15 on which the lower blade 19 is attached, there is a right-angled L-shaped upper blade 2.
A frame 33 that supports a ram 31 having a ram 9 is erected.

The upper blade 29 is similar to the lower blade 1.
9 and oriented perpendicularly to the longitudinal direction of the work table 15.
It consists of a blade 29a and a second blade 29b parallel to the longitudinal direction of the work table 15.

The second blade 1 parallel to the longitudinal direction of the work table 15 in the upper and lower blades 29, 19
9b, 29b, as shown in FIGS. 4 to 6,
It is provided in an overhanging manner so as not to interfere with the frame 33.

That is, since the frame 33 is provided with a gap _L1 in the longitudinal direction of the work table 15, by providing the second blades 19b, 29b so as to protrude outside of the frame 33, the gap L1 of the frame 33 is increased. It is possible to perform board cutting by feeding a plate material W that is longer than the depth of _L1 .

Also, a ram 31 equipped with the upper blade 29
are the upper and lower blades 1 when viewed from above.
Each first blade 19a, 29a in 9, 29
A pivot 35 provided on the frame 33 in parallel with
It swings up and down using the fulcrum as a fulcrum.

As described above, this invention provides the upper and lower blades 1
9, 29, the second blades 19b, 29 in a direction perpendicular to the pivot 35 that pivots the ram 31;
As is clear from Fig. 5, b is placed at a position protruding outward from the side of the frame 33, so even if the plate material W is sent longer than the gap _L1 of the frame 33, it can be machined. effective.

As can be understood from the above description of the embodiments, the gist of the present invention is as stated in the claims, and as is clear from the description, the present invention provides a This relates to a shearing machine in which a ram is vertically swingably supported on an upright frame via a pivot. The core of this is that in the lower blade, a second blade that is perpendicular to the first blade that is parallel to the pivot is arranged at a position that projects outward from the side of the frame.

With the above configuration, when shearing a plate material using the lower blade and the upper blade provided on the ram, when shearing is performed while the plate material W is being transferred in the direction along the second blade in the lower blade, the remaining part of the plate material that is not sheared and separated is The portion passes through the outer side of the frame, so there is no interference between the plate and the frame.

Note that this invention is not limited to the above embodiments,
Other embodiments are also possible.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a conventional shearing machine, Fig. 2a, Fig. 2b, and Fig. 2c are explanatory diagrams showing cutting of a plate material by a conventional shearing machine. Fig. 3 1 is a perspective view of a shearing machine embodying this invention, FIGS. 4 and 5 are front and side views of a shearing machine according to this invention, and FIG. 6 is a diagram showing a shearing machine according to this invention. FIG. Explanation of main symbols in the drawings, 33...Frame, 15...Work table, 19...Lower blade, 31...Ram, 29...Upper blade, W...Plate material, 29a, 29b, 19a, 19b...First blade, first 2 blades.

Claims (1)

[Claims] 1 A ram 31 is provided to be swingably supported in the vertical direction via a pivot 35 on a frame 33 erected on one side of the work table 15 that supports the plate material W in a movable manner. The first blade 19a in the lower blade 19
is provided in parallel with the pivot 35, and the second blade 19b of the lower blade 19, which is provided horizontally and perpendicular to the first blade 19a, is arranged at a position protruding outward from the side of the frame 33. The ram 31 is provided with an upper blade 29 comprising a first blade 29a and a second blade 29b which cooperate with the first and second blades 19a and 19b of the lower blade 19 to shear the plate material W. A shearing machine that is characterized by the ability to