KR20220147413A - Apparatus for forming double-curvature plate - Google Patents

Abstract

The present invention relates to an apparatus for forming a double-curvature for a metal plate material, which can fix a metal plate material in a process in which the double-curvature forming of the metal plate material is processed while precisely adjusting the location of the metal plate material in an effective manner. To this end, the apparatus for forming a double-curvature for a metal plate material comprises: an upper roller set and a lower roll set which perform the double-curvature forming with respect to the metal plate material; and a metal plate material gripping device which fixes the metal plate material while adjusting the location of the metal plate material. The metal plate material gripping device is characterized by comprising: a front grip device which enables the Y-axis movement and the Z-axis movement of the metal plate material in a state in which the metal plate material is fixed; and a rear gripping device which enables the horizontal movement, the Z-axis movement, the Z-axis-based rotation (R1), and the Z-axis-based rotation (R2) of the metal plate material in a state in which the metal plate material is fixed.

Description

Metal plate double-curvature forming apparatus {Apparatus for forming double-curvature plate}

The present invention relates to an apparatus for forming a double curve for a metal sheet, and more particularly, to a double curve forming for a metal sheet that can effectively and accurately adjust the position of the metal sheet while fixing the metal sheet during the double curve forming of the metal sheet. It's about the device.

In general, in the field of shipbuilding, aircraft, automobiles, etc., a metal curved plate having a double curvature as well as a metal flat plate is used. In particular, a metal curved plate used as a material for a ship is often made of a thick thick plate. In order to form a thick metal plate into a curved plate, various types of curved plate forming apparatuses have been previously proposed.

Korean Patent No. 319450 proposes a forming tool consisting of two pairs of support punches and one center punch, and forms a plate through an incremental forming process using the principle of bending deformation of the plate. way to do it However, in the technology disclosed in Korean Patent No. 319450, in order to form the entire plate material, bending deformation is generated by pressing the plate material with a center punch, then the position is adjusted by separating the center punch from the plate material, and then pressing the plate material again. There is a problem in that the molding period is lengthened as repetitive work that generates bending deformation must be performed.

Korean Patent No. 668068 proposes a technique for realizing a double curve by placing a metal plate between the upper roll set and the lower roll set and pressing the metal plate through the upper and lower rolls. However, in the case of the technology disclosed in Korean Patent No. 668068, the position of the metal plate is adjusted by adjusting the position of the roll set, such as the position of the metal plate is adjusted by vertical and linear movement of the roll, linear movement of the roll support, etc. As a result, there is a problem in that the metal plate is separated from a predetermined position in the process of double-curved forming.

Korea Patent No. 319450 (2002. 1. 5. Announcement) Korea Patent No. 668068 (2007. 1. 11. Announcement)

The present invention has been devised to solve the above problems, and it is possible to fix the metal plate in the process of double-curved forming of the metal plate and effectively and accurately adjust the position of the metal plate. Its purpose is to provide

According to the present invention for achieving the above object, there is provided an apparatus for forming a double curve for a metal sheet, comprising: an upper roll set and a lower roll set for performing double curve forming on a metal sheet; and a metal plate gripping device for fixing the metal plate and adjusting the position of the metal plate, wherein the metal plate gripping device includes a Y-axis movement and a Z-axis movement of the metal plate in a state where the metal plate is fixed. It includes a front grip device that enables It is characterized in that it is configured.

The front grip device includes a first guide frame for guiding the Y-axis movement of the horizontal and vertical guide member, and a horizontal and vertical guide member for enabling the Y-axis movement and the Z-axis movement of the metal plate.

The first guide frame provides a mounting space for the lower roll pedestal on which the metal plate is mounted, and forms a metal plate between the two horizontal and vertical guide members.

The horizontal and vertical guide member is composed of an upper member and a lower member, and the upper member has a structure that can be raised and lowered by a certain height while being fitted in the lower member, and the Z-axis movement of the metal plate is possible by lifting the upper member.

The rear grip device includes a second guide frame for guiding the horizontal movement of the horizontal guide member, a guide frame rotating plate mounted on the lower surface of the second guide frame to induce Z-axis rotation of the second guide frame, and a second guide A horizontal guide member capable of linear movement along the second guide frame in a state of being bound to the frame, and a rotation guide member provided at the upper end of the horizontal guide member in a form capable of rotating based on the Z-axis and guiding the movement of the elevating member along the Z-axis and a lifting member provided on one side of the rotation guide member and movable in the vertical direction of the rotation guide member.

Since the second guide frame can be rotated along the Z-axis by the guide frame rotating plate, the linear movement of the horizontal guide member in the second guide frame corresponds to the linear movement on the XY plane.

The upper roll set is composed of an upper roll guide frame, an upper roll guide member, and an upper roll. The upper roll set includes a Z-axis movement of the upper roll guide frame, a Y-axis movement of the upper roll guide member on the upper roll guide frame, and a Z-axis movement of the upper roll. It is composed of a structure that allows rotation based on the axis and self-rotation of the upper roll.

The lower roll set consists of a lower roll support, a lower roll holding member, and a plurality of lower rolls, and the lower roll set rotates the lower roll support on the Z axis, horizontal movement of the lower roll support member on the lower roll support, and the Z of the lower roll It is composed of a structure capable of axis movement, independent Z-axis rotation of the lower roll, and self-rotation of the lower roll.

The metal plate material double curve forming apparatus according to the present invention has the following effects.

As the direct position adjustment of the metal plate is possible while the metal plate is fixed through the metal plate gripping device, it is possible to stably fix the metal plate during double curve forming and to set various bending lines.

1 and 2 are perspective views of a metal plate double-grain forming apparatus according to an embodiment of the present invention.
3 is a reference diagram for explaining the operation of the front grip device.
4 is a reference diagram for explaining the operation of the rear grip device.
5 is a reference view for explaining the operation of the front grip device and the rear grip device for setting various bending lines.

The present invention proposes a technique capable of accurately adjusting the position of the metal plate while preventing the metal plate from being separated in the double curve forming of the metal plate.

As mentioned in the 'technology behind the invention', in the case of Korean Patent No. 668068, the position of the plate is adjusted by adjusting the position of the roll set on which the metal plate is mounted. Problems can arise.

The present invention uses a metal plate gripping device as a method of adjusting the position of the metal plate. The metal plate gripping device according to the present invention is a device capable of selectively adjusting the position of the metal plate while fixing the metal plate. While Korea Patent No. 668068 is a method of indirectly adjusting the position of a metal plate using a roll set, the present invention is a method of adjusting the position of a metal plate by directly controlling the metal plate through a metal plate gripping device. have. In addition, the present invention enables the metal plate gripping device to perform six operations so that the metal plate can be adjusted to various positions, and through this, various types of bending lines can be set.

Hereinafter, with reference to the drawings, an apparatus for forming a double-grained metal plate according to an embodiment of the present invention will be described in detail.

1 and 2, the metal plate material double curve forming apparatus according to an embodiment of the present invention comprises a roll set device and a metal plate material gripping device.

The roll set device includes an upper roll set (10) and a lower roll set (20). The upper roll set 10 and the lower roll set 20 are each composed of a plurality of rolls, and the upper roll set 10 and the lower roll set ( 20), the double curve forming of the metal plate material (M) by the pressurization proceeds.

The upper roll set 10 is composed of an upper roll guide frame 11 , an upper roll guide member 12 and an upper roll 13 , and the lower roll set 20 includes a lower roll support 21 and a lower roll holding member 22 . ) and a plurality of lower rolls 23 . The upper roll set 10 includes a Z-axis movement of the upper roll guide frame 11, a Y-axis movement of the upper roll guide member 12 on the upper roll guide frame 11, a Z-axis rotation of the upper roll 13, The upper roll 13 is designed in such a way that its own rotation is possible. In addition, the lower roll set 20 includes a Z-axis rotation of the lower roll support 21, a horizontal movement of the lower roll mounting member 22 on the lower roll support 21, a Z-axis movement of the lower roll 23, and a lower It is designed to enable independent Z-axis rotation of the roll 23 and self-rotation of the lower roll 23 .

On the other hand, in the double curve forming of the metal plate material M through the upper roll set 10 and the lower roll set 20, for the double curve forming of a specific bending line, the metal plate material M is It is required to fix and adjust the position of the metal plate (M), the metal plate grip device enables the fixing of the metal plate (M) and the position adjustment of the metal plate (M).

The metal plate gripping device serves to adjust the metal plate M in a fixed state to a specific position in addition to the role of basically fixing the metal plate M as described above. In order to adjust the position of the metal plate M in various ways, X-axis movement, Y-axis movement, Z-axis movement, rotation, etc. of the metal plate M are required, and the metal plate grip device has a total of six operations. This is implemented in a possible form.

The metal plate gripping device is specifically composed of a front gripping device 10 and a rear gripping device 20, the two degrees of freedom of the metal plate M are given through the front gripping device 10, and the rear gripping device ( 20), the four degrees of freedom of the metal plate (M) are given. Specifically, the Y-axis movement and the Z-axis movement of the metal plate M are possible through the front grip device 10 . In addition, horizontal (XY plane) movement, Z-axis movement, Z-axis reference rotation (R1), and Z-axis reference rotation (R2) of the metal plate M are possible through the rear grip device 20 .

As shown in FIGS. 1 and 3 , the front grip device 10 includes a first guide frame 110 and a horizontal and vertical guide member 120 . The first guide frame 110 serves to guide the Y-axis movement of the horizontal and vertical guide member 120, and the horizontal and vertical guide member 120 holds the metal plate M while holding the metal plate M. It enables Y-axis movement and Z-axis movement.

The first guide frame 110 may be composed of two beams disposed in parallel, and may be provided in a form in which a horizontal and vertical guide member 120 is mounted between the two beams.

The first guide frame 110 provides a mounting space for the lower roll support 21 in addition to the role of guiding the Y-axis movement of the horizontal and vertical guide member 120 . In a state in which the lower roll support 21 is mounted on the central part of the first guide frame 110 , the horizontal and vertical guide members 120 are provided on both sides of the lower roll support 21 , respectively. The metal plate material M, which is a double-curved molding object, is positioned on the lower roll support 21, and the metal plate M is provided with two horizontal and vertical guide members 120 interposed therebetween.

As described above, the metal plate M is provided between the two horizontal and vertical guide members 120 , and the two horizontal and vertical guide members 120 can fix the metal plate M. Various mechanisms may be applied for fixing the metal plate M. As an embodiment, as shown in FIG. 1 , using a fixing rod provided at the upper end of the horizontal and vertical guide member 120, the metal plate M Both sides can be fixed. One first fixing rod 121a of a first height and two second fixing rods 121b of a second height are provided on the upper side of the horizontal and vertical guide member 120, and the first fixing rod 121a and the second fixing rod 121a are provided. The metal plate M may be fixed in the form of inserting the metal plate M into the space between the fixing rods 121b.

In a state in which the metal plate M is fixed to the horizontal and vertical guide member 120 , as described above, the horizontal and vertical guide member 120 is movable on the Y-axis on the first guide frame 110 , so the horizontal and vertical guide member Through the Y-axis movement of 120, the metal plate M can be moved along the Y-axis. In addition, by widening or narrowing the distance between the two horizontal and vertical guide members 120, fixing and Y-axis movement of the metal plate M of various sizes is also possible.

Meanwhile, each of the horizontal and vertical guide members 120 is designed to be movable in the Z-axis. To this end, the horizontal and vertical guide member 120 is composed of a lower member 122 and an upper member 121 , and the upper member 121 forms a structure capable of elevating by a predetermined height while being fitted in the lower member 122 . The first fixing rod 121a and the second fixing rod 121b described above are provided on the upper member 121 . The lifting of the upper member 121 may use a spring member or a known technique such as bolt fastening for each height.

As the horizontal and vertical guide member 120 has a structure capable of lifting and lowering, that is, the horizontal and vertical guide member 120 has a structure capable of Z-axis movement, the Z-axis movement of the metal plate material M through the lifting and lowering of the upper member 121 is it becomes possible

As described above, the front grip device 10 enables the Y-axis movement of the metal plate M according to the Y-axis movement of the horizontal and vertical guide member 120 on the first guide frame 110 and provides a horizontal and vertical guide. The Z-axis movement of the metal plate M is possible through the elevation of the upper member 121 constituting the member 120 .

Next, as shown in FIGS. 1 and 4, the rear grip device 20 includes a second guide frame 210, a guide frame rotating plate 220, a horizontal guide member 230, and a rotating guide member 240. and a lifting member 250 . As described above, the rear grip device 20 enables four degrees of freedom of the metal plate M, that is, horizontal (XY plane) movement, Z-axis movement, Z-axis reference rotation (R1), and Z-axis reference rotation (R2). make it

The second guide frame 210 serves to guide the horizontal movement of the horizontal guide member 230 . The second guide frame 210 is a straight frame, and the horizontal guide member 230 is capable of linear movement along the second guide frame 210 in a state in which it is coupled to the second guide frame 210 .

As the first guide frame 110 is disposed in the Y-axis direction, the movement of the horizontal and vertical guide member 120 is limited to the Y-axis movement, but in the case of the second guide frame 210 , the guide frame rotating plate 220 . Since the rotation is possible by , the movement of the horizontal guide member 230 corresponds to a linear movement on the XY plane. The guide frame rotating plate 220 is mounted on the lower surface of the second guide frame 210 to induce the Z-axis rotation of the second guide frame 210 .

The rotation guide member 240 is provided on the upper end of the horizontal guide member 230 in a form capable of rotation based on the Z-axis. That is, the rotation guide member 240 is rotatable on the horizontal guide member 230 based on the Z-axis. In addition, the rotation guide member 240 serves to guide the lifting and lowering of the lifting member 250 , that is, the Z-axis movement, while being able to rotate based on the Z-axis by itself.

The lifting member 250 is provided on one side of the rotation guide member 240 to be movable in the vertical direction of the rotation guide member 240 . In addition, a metal plate (M) fixing means is provided at one end of the lifting member (250), so that the metal plate (M) can be fixed to the lifting member (250).

In light of the above description, it can be seen that the horizontal guide member 230 , the rotation guide member 240 , and the elevating member 250 form an integrated structure. That is, the rotation guide member 240 is provided on the upper end of the horizontal guide member 230 coupled to the second guide frame 210 , and the lifting member 250 is provided on one side of the rotation guide member 240 . . Accordingly, when the horizontal guide member 230 moves horizontally on the second guide frame 210 , the rotation guide member 240 and the elevating member 250 also move horizontally together with the horizontal guide member 230 .

Based on the four degrees of freedom of the rear grip device 20 described above, that is, horizontal (XY plane) movement, Z-axis movement, Z-axis reference rotation (R1), and Z-axis reference rotation (R2), the The actions are summarized as follows.

In a state in which the metal plate M is fixed to the lifting member 250 , the Z-axis movement of the metal plate M is possible as the lifting member 250 is movable in the vertical direction of the rotation guide member 240 . . In addition, as the rotation guide member 240 itself can rotate on the Z-axis, the Z-axis rotation R1 of the metal plate M is possible. At the same time, the horizontal guide member 230 can move in a straight line along the second guide frame 210. Since the second guide frame 210 has a structure in which the Z-axis rotation is possible by the guide frame rotating plate 220, the horizontal guide Linear movement corresponds to horizontal movement on the XY plane. In addition, the second guide frame 210 is rotated on the Z-axis basis by the Z-axis rotation of the guide frame rotating plate 220, so that the Z-axis reference rotation R2 of the metal plate M is possible.

The reason for giving the Z-axis reference rotation (R2) of the second guide frame 210 by the guide frame rotation plate 220 even though the Z-axis reference rotation (R1) of the rotation guide member 240 is possible, the metal plate material (M) This is to implement various types of bending lines that can be applied to (see FIG. 5). For example, when only the Z-axis reference rotation R1 of the rotation guide member 240 is possible or only the Z-axis reference rotation R2 of the second guide frame 210 is possible, the fine adjustment of the bending line is limited. That is, by combining the Z-axis reference rotation (R1) of the rotation guide member 240 having a relatively small radius and the Z-axis reference rotation (R2) of the second guide frame 210 having a relatively large radius, the metal plate material ( The rotational position of M) can be precisely adjusted, and through this, various types of bending lines can be set.

As described above, the metal plate gripping device according to the present invention has two degrees of freedom of the metal plate M through the front gripping device 10 in a state in which the metal plate M is fixed, that is, Y-axis movement and Z-axis movement. In addition to this, the four degrees of freedom of the metal plate M, that is, horizontal (XY plane) movement, Z-axis movement, Z-axis reference rotation (R1), and Z-axis reference rotation (R2), are As possible, it is possible to adjust various positions of the metal plate (M), thereby minimizing the restrictions on the bending line setting of the metal plate (M).

10: upper roll set 11: upper roll guide frame
12: upper roll guide member 13: upper roll
20: lower roll set 21: lower roll support
22: lower roll holding member 23: lower roll
30: front grip device 40: rear grip device
110: first guide frame 120: horizontal and vertical guide member
121: upper member 122: lower member
210: second guide frame 220: guide frame rotating plate
230: horizontal guide member 240: rotation guide member
250: elevating member

Claims (8)

An upper roll set and a lower roll set for performing double-curve forming on a metal plate; and
and a metal plate gripping device for fixing the metal plate and adjusting the position of the metal plate.
The metal plate grip device,
A front grip device that enables Y-axis movement and Z-axis movement of the metal plate in a state in which the metal plate is fixed;
Metal plate, characterized in that it comprises a rear grip device that enables horizontal movement, Z-axis movement, Z-axis reference rotation (R1), and Z-axis reference rotation (R2) of the metal plate material in a state in which the metal plate material is fixed Double trough forming device.
According to claim 1, wherein the front grip device,
A first guide frame for guiding the Y-axis movement of the horizontal and vertical guide members, and
A metal plate double curve forming apparatus, characterized in that it comprises a horizontal and vertical guide member that enables the Y-axis movement and the Z-axis movement of the metal plate.
According to claim 2, wherein the first guide frame provides a mounting space for the lower roll pedestal on which the metal plate is mounted, and the metal plate is provided between the two horizontal and vertical guide members. Device.
According to claim 2, wherein the horizontal and vertical guide member is composed of an upper member and a lower member, the upper member forms a structure that can be lifted by a predetermined height in a state fitted to the lower member,
A metal plate double-curved forming apparatus, characterized in that the Z-axis movement of the metal plate is possible by elevating the upper member.
According to claim 1, wherein the rear grip device,
A second guide frame for guiding the horizontal movement of the horizontal guide member,
a guide frame rotating plate mounted on the lower surface of the second guide frame to induce rotation of the second guide frame based on the Z axis;
A horizontal guide member capable of linear movement along the second guide frame in a state of being bound to the second guide frame;
A rotation guide member provided at the upper end of the horizontal guide member in a form capable of rotating based on the Z-axis and guiding the Z-axis movement of the elevating member;
A metal plate double curve forming apparatus, which is provided on one side of the rotation guide member and includes a lifting member capable of moving along the vertical direction of the rotation guide member.
[6] The metal according to claim 5, wherein the linear movement of the horizontal guide member in the second guide frame corresponds to the linear movement on the XY plane because the second guide frame is rotatable in the Z-axis by the guide frame rotating plate. Sheet material double curve forming device.
According to claim 1, wherein the upper roll set is composed of an upper roll guide frame, an upper roll guide member and an upper roll,
The upper roll set is characterized in that it has a structure in which the Z-axis movement of the upper roll guide frame, the Y-axis movement of the upper roll guide member on the upper roll guide frame, the Z-axis rotation of the upper roll, and the self-rotation of the upper roll are possible. Metal sheet double-curve forming device.
According to claim 1, wherein the lower roll set is composed of a lower roll support, a lower roll holding member and a plurality of lower rolls,
The lower roll set has a structure capable of rotating the lower roll support on the Z-axis, horizontal movement of the lower roll mounting member on the lower roll support, Z-axis movement of the lower roll, independent Z-axis rotation of the lower roll, and self-rotation of the lower roll Metal plate material double curve forming apparatus, characterized in that consisting of.

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