KR101943271B1 - Cutting machine for circular plate - Google Patents

Abstract

The present invention relates to a cutting apparatus for a circular plate, comprising: a body frame; a clamping unit disposed at one end part of the body frame in order to clamp a board to be cut to allow rotation thereof; and a cutting unit disposed at the other end part of the body frame in order to cut the board fixated at the clamping unit while rotating the same. According to the present invention, the board is automatically cut at a desired diameter, and formation of chips is prevented, thereby improving quality and working environment.

Description

{Cutting machine for circular plate}

The present invention relates to a cutting apparatus, and more particularly, to a cutting apparatus capable of accurately cutting a cutting surface by keeping a cutting rotational speed constant by rotating and clamping a plate that is clamped to be rotatable, So that the working efficiency can be improved.

Generally, a steel plate is first cut using a press at a cutting plant, and the thus-cut steel plate is standardized to a predetermined size, and the steel plate thus mass-produced is transported to an industrial site.

The steel plate to be transported is used again in the industrial field by second cutting to the required size, and the second cutting method is cut using a circular power saw, or the worker wears the protective gear and cuts using the torch have.

However, in the case of cutting with a power saw, there is a problem that it is difficult to cut a long one due to the weight of the iron plate, and when cutting using a torch, it is necessary to rely on manual work.

In order to overcome this, as disclosed in Japanese Patent No. 10-1216417, a magnetic substance is used to attach a base to an iron plate, and then the torch is rotated to cut the circular iron plate.

However, in the conventional cutting machine, since the cutting surface is not uniform due to the rotation speed of the torch or the thermal power of the torch, a separate secondary processing is required.

In addition, when cutting by the torch, flames and debris are generated and scattered, and fine dust is increased, and the working environment is deteriorated.

Accordingly, there is an urgent need to develop a technique that not only facilitates the cutting operation, but also prevents and minimizes the generation of byproducts, thereby improving the working environment and improving the working efficiency.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a body frame, a clamping unit provided at one end of the body frame for clamping a plate to be cut, And a cutting part for cutting and rotating the plate fixed to the clamping part. In addition, it is possible to cut a plate to a desired diameter, prevent a chip from occurring, and improve a quality and working environment. It is an object to provide a device.

According to an aspect of the present invention, there is provided a clamping device for clamping a plate to be cut, the clamping device comprising: a body frame; a clamping part provided at one end of the body frame for clamping the plate to be cut, And a cutting section for cutting and rotating the plate material.

Preferably, the clamping unit includes a clamp frame rotatably provided at one end of the body frame, a clamp provided on the clamp frame to hold a plate material to be cut, the clamp being rotatable in the clamp frame, And a clamp driving unit for driving the clamping unit.

The clamp frame includes a clamp lower frame located on the upper side of the one end of the body frame, a clamp upper frame positioned on the upper side of the clamp lower frame so as to be spaced apart from the clamp lower frame by a predetermined distance, And a clamp rotating connection part for rotatably mounting the clamp lower frame on one end of the body frame.

The clamp connection part may include a rotation connection frame provided at one end of the body frame, a rotation connection shaft protruding from the rotation connection frame, a rotary connection frame provided at the lower end frame corresponding to the rotation connection axis, And a rotation bearing that rotatably connects the rotation connection frame to the rotation connection shaft.

Further, the clamp frame is further provided with a rotary knob to rotate based on the clamp rotation connection portion.

The clamp may further include a lower clamp piece arranged to be rotatable in the horizontal direction at the other end of the clamp lower frame so as to support a lower side of the plate, and a lower clamp piece corresponding to the lower clamp piece, And an upper clamp piece provided at the other end of the upper frame so as to be horizontally rotated and movable up and down.

The clamp driving unit moves the upper clamp piece up and down with a cylinder.

The clamping unit may further move the clamping unit from one end to the other end of the body frame.

The clamp moving unit includes a clamp having a thread along the outer circumference and having both ends rotatably mounted on one end of the body frame, a clamp moving block provided on the rotary connecting frame to move the clamp along the enclosing, And a clamp drive motor for rotating the clamping shaft.

The apparatus further includes a shake preventing portion for preventing shaking of the plate clamped to the clamp.

The shake preventing portion may include a pair of guide rods provided horizontally in the clamp upper frame, a shake prevention frame movably provided along the pair of guide rods, a shake prevention cylinder provided in the shake prevention frame, And an anti-shake roll provided on the rod of the anti-shake cylinder for pressing the plate rotated in the clamp.

The cutting unit may include a cutting base frame provided at the other end of the body frame, an upper cutting portion provided on the cutting base frame such that the upper cutting edge is positioned on the upper side of the plate clamped to the clamping portion, And a lower cutting edge provided on the cutting base frame such that the lower cutting edge corresponding to the lower cutting edge is positioned below the plate clamped to the clamping portion.

The upper cutting portion includes an upper cutting blade for cutting the plate material from above the plate material, and an upper driving motor for rotating the upper cutting blade.

The lower cutting section includes a lower cutting blade for cutting the plate material below the plate material, and a lower driving motor for rotating the lower cutting blade.

One of the upper cutting edge and the lower cutting edge is vertically positioned to be orthogonal to the plane of the plate, and the other is positioned at an angle with respect to any one of the upper and lower cutting edges.

In addition, the upper cutting edge and the lower cutting edge are formed at an angle of 130 to 170 degrees with respect to any one vertically positioned.

And a lower position adjuster for adjusting a position of the lower cutter, and a lower position adjuster for adjusting a position of the lower cutter.

The upper position adjustment unit may include an upper adjustment frame provided with the upper cut part and movable along the cutting base frame in the vertical direction and an upper adjustment cylinder for moving the upper adjustment frame in the vertical direction .

And a second upper position regulating portion for moving the upper cut portion in the direction of the clamping portion or in the opposite direction.

The second upper end position adjusting portion may include a second upper end adjusting frame provided between the upper end cutting portion and the upper end adjusting frame so as to be movable in the direction of the clamping portion or in the opposite direction along the upper end adjusting frame, And a second upper adjustment cylinder for moving the second upper adjustment frame in the direction of the clamping portion or in the opposite direction.

The lower end position adjuster includes a lower adjustable frame provided with the lower cutout part and provided to be inclined and movable along the other end of the body frame in the direction of the clamping part or in the opposite direction, And a lower adjustment driving unit for moving the clamping unit in the direction opposite to the clamping unit or in the opposite direction.

The lower adjustment driving unit may include a lower adjustment operation rod having a thread along the outer periphery and having both ends rotatable at the other end of the body frame, And a lower adjustment motor for rotating the lower adjustment driving bar.

And a bottom angle adjuster for adjusting the angle of the bottom cut portion provided in the bottom adjustment frame.

In addition, the lower-end angle adjusting unit may include a lower rotating frame provided between the lower-end position adjusting unit and the lower-end adjusting frame, the other end of the lower rotating frame being rotatable at the other end of the lower adjusting frame, And a lower rotating cylinder for vertically rotating one end of the lower rotating frame.

And a second lower end position adjuster for moving the lower end cut portion provided in the lower adjustment frame in the direction of the clamping portion or in the opposite direction.

The second lower end position adjuster includes a second lower adjuster frame provided between the lower end position adjuster and the lower adjuster frame and movable along the lower adjuster frame in the direction of the clamping unit or in the opposite direction, And a second lower adjustment cylinder for moving the second lower adjustment frame in the direction of the clamping portion or in the opposite direction.

INDUSTRIAL APPLICABILITY As described above, the circular plate cutting apparatus according to the present invention is a very useful and effective invention that can automatically cut a plate material to a desired diameter, prevent chip generation, and improve quality and working environment.

1 is a view showing a circular plate cutting apparatus according to the present invention,
2 is a view showing a clamping unit according to the present invention,
3 is a plan view of a circular plate cutting apparatus according to the present invention,
4 is a view showing a cutting portion according to the present invention,
FIG. 5 is a view illustrating a state in which a second upper position adjusting unit is further provided in a cutting unit according to the present invention,
6 is a view showing a state where the cut-away portion according to the present invention is further provided with a lower-end angle adjusting portion and a second upper end position adjusting portion.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following detailed description, together with the accompanying drawings, is intended to illustrate exemplary embodiments of the invention and is not intended to represent the only embodiments in which the invention may be practiced. The following detailed description includes specific details in order to provide a thorough understanding of the present invention. However, those skilled in the art will appreciate that the present invention may be practiced without these specific details.

In some instances, well-known structures and devices may be omitted or may be shown in block diagram form, centering on the core functionality of each structure and device, to avoid obscuring the concepts of the present invention.

Throughout the specification, when an element is referred to as " comprising " or " including ", it is meant that the element does not exclude other elements, do. Further, the term " part " described in the specification means a unit for processing at least one function or operation. Also, the terms " a or ", " one ", " the ", and the like are synonyms in the context of describing the invention (particularly in the context of the following claims) May be used in a sense including both singular and plural, unless the context clearly dictates otherwise.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a view showing a circular plate cutting apparatus according to the present invention, FIG. 2 is a view showing a clamping unit according to the present invention, FIG. 3 is a plan view of a circular plate cutting apparatus according to the present invention, FIG. 5 is a view illustrating a state in which a second upper position adjusting unit is further provided in a cut portion according to the present invention. FIG. 6 is a cross- And a second upper position adjusting unit are further provided.

As shown in the drawing, a circular plate cutting apparatus 10 includes a body frame 100, a clamping unit 200, and a cut unit 300.

The clamping unit 200 is provided at one end of the body frame 100 to clamp the plate to be cut in a rotatable manner.

The cutting portion 300 is provided at the other end of the body frame 100 to cut and rotate the plate fixed to the clamping portion 200.

The circular plate cutting apparatus 10 clamps the plate to be cut to the clamping unit 200, and cuts the plate to a desired diameter by the cutter 300.

Here, the upper end cutting edge 322 and the lower end cutting edge 332 of the cutter 300 are rotated in contact with each other to cut and rotate the plate material.

The clamping unit 200 includes a clamp frame 210, a clamp 220, and a clamp driving unit 230, as shown in FIG.

The clamp frame 210 is rotatably provided at one end of the body frame 100.

The clamp 220 is provided in the clamp frame 210 to hold the plate to be cut, and is rotatable in the clamp frame 210.

The clamp driver 230 is provided to drive the clamp 220.

Here, the clamp frame 210 includes a clamp lower frame 212 and a clamp upper frame 214, a clamp connection frame 216, and a clamp rotation connection 218.

The clamp lower frame 212 is positioned above one end of the body frame 100.

And the clamp upper frame 214 is spaced apart from the upper side of the clamp lower frame 212 by a predetermined distance.

The clamp connection frame 216 is provided to connect one end of the clamp lower frame 212 and each end of the clamp upper frame 214.

Further, the clamp rotating connection portion 218 is installed so that the clamp lower frame 212 is rotatable on one end of the body frame 100.

The clamp rotation connection portion 218 includes a rotation connection frame 2182 and a rotation connection shaft 2184, a rotation connection frame 2186, and a rotation bearing 2188.

The rotation connection frame 2182 is provided at one end of the body frame 100.

The rotation connecting shaft 2184 is protruded from the rotation connecting frame 2182.

The rotation connection frame 2186 is provided on the clamp lower frame 212 so as to correspond to the rotation connection shaft 2184.

The rotating bearing 2188 is rotatably mounted on the rotating connection shaft 2184.

As shown in FIG. 3, the clamp frame 210 is further provided with a rotary knob 213, and rotates about the clamp rotation connection portion 218.

The clamp 220 is composed of a lower clamp piece 222 and an upper clamp piece 224.

The lower clamp piece 222 is horizontally rotatable at the other end of the clamp lower frame 212 to support the lower side of the plate material.

The upper clamp piece 224 corresponds to the lower clamp piece 222 and is provided at the other end of the clamp upper frame 214 so as to press the upper side of the plate material in the horizontal direction and move up and down.

Further, the clamp driving unit 230 moves the upper clamp piece 224 up and down with the cylinder.

Thus, the plate material can be clamped between the lower clamp piece 222 and the upper clamp piece 224. [

The shaft on which the lower clamp piece 222 and the upper clamp piece 224 are rotated may be formed at a position different from the rotation connecting shaft 2184 to displace the position of the clamp 220.

In other words, when the clamp frame 210 is rotated with respect to the rotation connecting shaft 2184 in a state where the plate member is clamped, the plate member may be cut into an elliptical shape or a curved shape.

The clamping unit 200 further includes a clamping unit 240.

The clamp moving part 240 is provided to move the clamping part 200 from one end to the other end of the body frame 100.

The clamp moving part 240 includes a clamping enclosure 242, a clamp moving block 244, and a clamp driving motor 246. [

The clamping shaft 242 has a thread along the outer periphery and has both ends rotatably mounted on one end of the body frame 100.

And the clamp moving block 244 is provided in the rotary connecting frame 2186 so that the clamp can move along the enclosure 242. [

A clamp drive motor 246 is provided for rotating the clamp 242.

Further, the clamping unit 200 further includes a shake prevention unit 250.

The anti-shake portion 250 is provided to prevent shaking of the plate clamped to the clamp 220.

The anti-shake portion 250 includes a guide rod 252, a shake prevention frame 254, a shake prevention cylinder 256, and a shake prevention roll 258.

The pair of guide rods 252 are provided horizontally in the clamp upper frame 214 as a pair.

The shake prevention frame 254 is provided movably along the pair of guide rods 252.

The anti-shake cylinder 256 is provided in the anti-shake frame 254.

The anti-shake roll 258 is provided on the rod of the anti-shake cylinder 256 so as to be pressed against the plate rotated by the clamp 220, and rotated against the surface of the plate.

The anti-shake roll 258 can be clamped to prevent shaking of the plate material to be cut and rotated, thereby precisely cutting the plate material into a shape to be cut.

Here, the anti-shake roll 258 may be formed in a spherical shape.

The cut portion 300 includes a cut base frame 310, an upper cut portion 320, and a lower cut portion 330, as shown in FIG.

The cutting base frame 310 is provided at the other end of the body frame 100.

The upper cutting portion 320 is provided on the cutting base frame 310 such that the upper cutting edge 322 is located on the upper side of the plate clamped to the clamping portion 200.

The lower cutting edge 330 is provided on the cutting base frame 310 such that the lower cutting edge 332 corresponding to the upper cutting edge 322 is positioned below the plate clamped to the clamping portion 200.

Here, the upper cutting portion 320 includes an upper cutting blade 322 and an upper driving motor 324.

The upper cutting edge 322 is provided for cutting the plate material above the plate material.

The upper drive motor 324 is provided to rotate the upper cutting edge 322.

The lower cutting portion 330 includes a lower cutting edge 332 and a lower driving motor 334. [

The lower cutting edge 332 is provided for cutting the plate material below the plate material.

The lower driving motor 334 is provided to rotate the lower cutting edge 332.

One of the upper cutting edge 322 and the lower cutting edge 332 is vertically positioned to be orthogonal to the face of the plate and the other is positioned at an angle with either one.

In one embodiment, the top cutting edge 322 is vertically positioned to be orthogonal to the plane of the sheet material, and the bottom cutting edge 332 is positioned at an angle with the top cutting edge 322 at an angle.

Here, the upper cutting edge 322 and the lower cutting edge 332 are formed at an angle of 155 to 175 °, preferably 165 °, with respect to any one vertically positioned.

Accordingly, it is possible to prevent chips from being generated by forming the cut surface cleanly.

In other words, at the time of the conventional cutting, the upper cutting edge 322 and the lower cutting edge 332 are formed at an angle of 180 degrees with respect to one vertically positioned. That is, when the upper cutting edge 322 and the lower cutting edge 332 are both positioned in the vertical direction so as to be orthogonal to the surface of the plate, the upper cutting edge 322 vertically positioned with respect to the plate in the process of cutting the plate into a circular shape, The lower cutting edge 332 and the lower cutting edge 332 generate a lot of chips due to cutting friction with the plate material. The chip thus generated has a large size and a bulky and sharp shape. An operator may be injured in the process of moving to dissolve such a chip, and energy is consumed in the process of melting the chip, thereby causing a problem of cost.

In addition, there is a problem that the working time and the cost are increased because the cut surface is not clean and separate processing is required in many cases.

The circular plate cutting apparatus 10 prevents the chips from being generated at the time of cutting the plate by setting the upper cutting edge 322 and the lower cutting edge 332 at a certain angle to each other, And the working efficiency can be improved.

The cutting unit 300 further includes a top position adjusting unit 340 and a bottom position adjusting unit 350.

The upper end position adjusting portion 340 is provided to adjust the position of the upper end cutting portion 320.

The lower end position adjuster 350 is provided to adjust the position of the lower cutter 330.

The upper end position regulating portion 340 includes an upper regulating frame 342 and an upper regulating cylinder 344.

The upper adjustment frame 342 is provided with an upper cutting portion 320 and is vertically movable along the cutting base frame 310.

The upper adjustment cylinder 344 is provided to move the upper adjustment frame 342 in the vertical direction.

The lower position adjusting unit 350 includes a lower adjusting frame 352 and a lower adjusting driving unit 354.

The lower adjustment frame 352 is provided with a lower cut portion 330 and is installed to be inclined and movable along the other end of the body frame 100 in the direction of the clamping portion or in the opposite direction.

The lower adjustment driving unit 354 is provided to move the lower adjustment frame 352 in the direction of the clamping unit or in the opposite direction.

The lower adjustment driving unit 354 includes a lower adjustment driving rod 3542, a lower adjustment block 3544, and a lower adjustment motor 3546.

The lower control shaft 3542 has threads along the outer periphery thereof and is rotatably provided at the other end of the body frame 100 at both ends thereof.

The lower adjustment block 3544 is provided on the lower adjustment frame 352 so as to be movable along the lower adjustment rod 3542.

The lower adjustment motor 3546 is provided for rotating the lower adjustment rod 3542. [

As shown in FIG. 5, the cutting unit 300 further includes a second upper position adjusting unit 360.

The second upper end position adjusting portion 360 is provided to move the upper end cutting portion 320 in the direction of the clamping portion or in the opposite direction.

The second upper position regulating portion 360 includes a second upper regulating frame 362 and a second upper regulating cylinder 364.

The second upper adjustment frame 362 is provided between the upper cutting portion 320 and the upper adjustment frame 342 so as to be movable along the upper adjustment frame 342 in the direction of the clamping portion or in the opposite direction.

And the second upper adjustment cylinder 364 is provided to move the second upper adjustment frame 362 in the direction of the clamping portion or in the opposite direction.

6, the cut-off portion 300 further includes a lower-end angle adjuster 370. The lower-

The lower angle adjusting portion 370 is provided to adjust the angle of the lower end cutting portion 330 provided on the lower adjusting frame 352.

The bottom angle regulating portion 370 includes a bottom rotating frame 372 and a bottom rotating cylinder 374. [

The lower rotating frame 372 is provided between the lower position adjusting part 350 and the lower adjusting frame 352 and the other end is rotatably mounted on the other end of the lower adjusting frame 352.

The lower rotating cylinder 374 is provided in the lower adjusting frame 352 to rotate the lower rotating frame 372 in the vertical direction.

The cutting unit 300 further includes a second lower end position adjusting unit 380.

The second lower end position adjusting portion 380 is provided to move the lower end cutting portion 330 provided in the lower end adjusting frame 352 in the direction of the clamping portion or in the opposite direction.

The second lower end position adjusting unit 380 includes a second lower end adjusting frame 382 and a second lower end adjusting cylinder 384.

The second lower adjustment frame 382 is provided between the lower position adjuster 350 and the lower adjustment frame 352 so as to be movable along the lower adjustment frame 352 in the direction of the clamping portion or in the opposite direction.

And the second lower adjustment cylinder 384 is provided to move the second lower adjustment frame 382 in the direction of the clamping portion or the opposite direction.

Accordingly, it is possible to easily cut the plate material at an angle that is desired by controlling the top cut portion 320 and the bottom cut portion 330, as well as to prevent chips from being generated.

10: Cutting device 100: Body frame
200: clamping part 210: clamp frame
220: clamp 230: clamp drive part
240: clamp clamping part 250: anti-shake part
300: Cutting part 310: Cutting base frame
320: upper cut portion 330: lower cut portion
340: upper position adjusting part 350: lower position adjusting part
360: second top position adjusting unit 370: bottom angle adjusting unit
380: second bottom position adjusting section

Claims (10)

A body frame (100);
A clamping unit 200 provided at one end of the body frame for clamping the plate to be cut rotatably;
And a cutting part (300) provided at the other end of the body frame for cutting and rotating the plate fixed to the clamping part,
The clamping part (200)
A clamp frame (210) rotatably provided at one end of the body frame;
A clamp 220 mounted on the clamp frame to hold a plate to be cut, the clamp 220 being rotatable in the clamp frame; And
And a clamp driving unit (230) for driving the clamp,
The clamp frame (210)
A clamp lower frame (212) positioned above one end of the body frame;
A clamp upper frame (214) positioned so as to be spaced apart from the clamp lower frame at a predetermined interval;
A clamp connection frame (216) for connecting one end of each of the clamp lower frame and the clamp upper frame; And
And a clamp rotating connection part (218) for rotatably mounting the clamp lower frame on one end of the body frame,
The clamp rotation connecting portion 218 is provided with a clamp-
A rotation connection frame 2182 provided at one end of the body frame 100;
A rotation connection shaft 2184 protruding from the rotation connection frame 2182;
A rotation connection frame 2186 provided on the clamp lower frame 212 to correspond to the rotation connection shaft 2184; And
And a rotation bearing 2188 rotatably mounted on the rotation connection shaft 2184,
The clamp frame (210)
A rotary knob 213 for rotating the clamp rotary connection unit 218 is further provided,
The cut-out portion (300)
A cutting base frame 310 provided at the other end of the body frame;
An upper cutting portion (320) provided on the cutting base frame such that an upper cutting edge is positioned on the upper side of the plate clamped to the clamping portion; And
And a lower end cutting portion (330) provided on the cutting base frame such that a lower cutting edge corresponding to the upper cutting edge is positioned below the plate clamped to the clamping portion,
The upper cutout portion (320)
An upper cutting edge 322 for cutting the plate material above the plate material; And
And an upper drive motor (324) for rotating the upper cutting blade,
The lower cut-out portion 330,
A lower cutting edge 332 for cutting the plate material from the lower side of the plate material; And
And a lower driving motor (334) for rotating the lower cutting edge,
Wherein one of the upper cutting edge and the lower cutting edge is vertically positioned so as to be orthogonal to the plane of the plate material and the other is positioned at an angle to an angle with the one of the upper cutting edge and the lower cutting edge,
An upper position adjuster 340 for adjusting the position of the upper cutout portion; And
And a lower end position adjuster 350 for adjusting the position of the lower cutout,
And a second upper position adjusting part (360) for moving the upper cut part in the direction of the clamping part or in the opposite direction,
The upper position adjuster 340 may adjust the upper-
An upper adjustment frame 342 which is vertically movable along the cutting base frame 310; And
And an upper adjustment cylinder (344) for moving the upper adjustment frame in the vertical direction,
The second upper-end position adjusting unit 360 may adjust the second upper-
A second upper adjustment frame (362) provided on the upper adjustment frame (342) and movable along the upper adjustment frame in the direction of the clamping unit or in the opposite direction; And
And a second upper adjustment cylinder (364) for moving the second upper adjustment frame in the direction of the clamping portion or in the opposite direction,
The lower-end position adjusting unit 350 includes:
A lower adjustment frame 352 provided movably along the other end of the body frame in the direction of the clamping unit or in the opposite direction; And
And a lower adjustment driving part (354) for moving the lower adjustment frame in the direction of the clamping part or the opposite direction,
The lower adjustment driving part 354,
A lower end control rod 3542 having threads along the outer periphery and having both ends rotatable at the other end of the body frame;
A lower adjustment block 3544 provided on the lower adjustment frame to be movable along the lower adjustment operation rod; And
And a lower adjustment motor 3546 for rotating the lower adjustment driving rod,
And a lower angle adjusting portion (370) for adjusting the angle of the lower cut portion,
The lower-end angle adjuster 370 may include a lower-
A lower rotating frame 372 having the other end rotatably mounted on the other end of the lower adjusting frame 352; And
And a lower rotating cylinder (374) provided in the lower adjusting frame for rotating one end of the lower rotating frame in the vertical direction,
And a second lower end position adjusting unit 380 for moving the lower end cutting unit 330 along the lower rotating frame 372 in the direction of the clamping unit or in the opposite direction,
The second lower-end position adjusting unit 380,
And is provided between the lower end position adjusting unit 350 and the lower end adjusting frame 352,
A second lower adjustment frame 382 provided with the lower cut part 330 and movable along the lower rotation frame 372 in the direction of the clamping part or in the opposite direction; And
And a second lower adjustment cylinder (384) for moving the second lower adjustment frame in the direction of the clamping portion or in the opposite direction. delete delete The clamp according to claim 1,
A lower clamp piece which is rotatable in a horizontal direction at the other end of the clamp lower frame so as to support a lower side of the plate material; And
And an upper clamp piece corresponding to the lower clamp piece, the upper clamp piece being horizontally rotatable and vertically movable on the other end of the clamp upper frame so as to press the upper side of the plate material. 5. The method of claim 4,
And a clamp moving part for moving the clamping part from one end to the other end of the body frame. The method according to claim 1,
And a shake prevention portion for preventing shaking of the plate material clamped to the clamp. delete delete delete delete

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