KR102493990B1 - Roll forming apparatus for manufacturing pillar of automobiles and manufacturing method for pillar of automobiles using the same - Google Patents

Abstract

The present invention relates to a roll forming apparatus for manufacturing a pillar of an automobile and a method of manufacturing a pillar of an automobile using the same, and to a roll forming apparatus for manufacturing a pillar of an automobile having a quadrangular shape including first to fourth surfaces that are not parallel to each other. In the first roll forming part, the second roll forming part, and the third roll forming part, at the end of the third and fourth surface parts bent on the first surface and the first part curved on the first surface and the third surface part By contacting the curved second partial surface to form the second surface, and by welding and fixing the first and second partial surfaces with a welding part, a pillar of an automobile having a square-shaped closed cross section is performed in one roll forming process. This can simplify the manufacturing process, reduce manufacturing costs, and greatly improve productivity.

Description

Roll forming device for manufacturing pillars of automobiles and method of manufacturing pillars of automobiles using the same

The present invention relates to a roll forming device for manufacturing a pillar of an automobile and a method of manufacturing a pillar of an automobile using the same, and more particularly, a pillar of an automobile having a closed cross section of a quadrangular shape can be manufactured with one welded portion through a roll forming process. The present invention relates to a roll forming device for manufacturing a pillar of an automobile and a method of manufacturing a pillar of an automobile using the same.

In general, a pillar of an automobile refers to a frame forming a pillar connecting a body and a roof.

A pillar of a closed section is manufactured by welding two open frames manufactured through a roll forming process in at least two places.

Conventionally, a pillar for automobiles manufactures a first pillar frame and a second pillar frame having one side open through a roll forming process, and attaches the first pillar frame and the second pillar frame with the openings facing each other to form at least two pillars. By welding at the location, the pillar of the closed section is manufactured.

However, in the conventional automobile pillar manufacturing method, a separate welding process of welding at least two locations after manufacturing two pillar frames through a roll forming process is additionally performed, which complicates the manufacturing process and requires high manufacturing costs. There was a problem.

Korean Patent Registration No. 1544343 "Method of manufacturing door pillar for automobile and door pillar for automobile made by the manufacturing method" (registered on Aug. 6, 2015)

An object of the present invention is to provide a roll forming device for manufacturing a pillar of an automobile capable of manufacturing an automobile pillar having a rectangular closed cross section through a single roll forming process, and a method of manufacturing a pillar of an automobile using the same.

Another object of the present invention is a roll forming device for manufacturing an automobile pillar that can precisely manufacture an automobile pillar having a square-shaped closed cross section in a pre-designed shape through shape correction work twice before and after welding, and an automobile pillar using the same It is to provide a manufacturing method.

In order to achieve the above object of the present invention, an embodiment of a roll forming apparatus for manufacturing a pillar for automobiles according to the present invention is an automobile that manufactures a pillar in a quadrangular shape including first to fourth surfaces that are not parallel to each other. It is a roll forming device for manufacturing pillars, and gradually bends portions on both end sides of the plate for manufacturing pillars to form first and second face portions that become parts of the second face portion at one end side and the other end side of the first face portion of the plane. A first roll forming part forming the second part face portion to be the remaining part, a second roll forming part forming a third face part by gradually bending the other end side of the first face part, and bending the other end side of the first face part A third roll forming part forming a fourth surface portion between the first surface portion and the third surface portion and forming the second surface portion by bringing an end portion of the first portion surface portion and an end portion of the second portion surface portion to each other; and a welding portion for welding an end portion of the first portion surface portion and an end portion of the second portion surface portion to which the first portion surface portion is joined.

An embodiment of the roll forming apparatus for manufacturing a pillar of an automobile according to the present invention is a device for correcting the shape of a frame body for a pillar, which is positioned between the third roll forming unit and the welding unit and temporarily formed by the third roll forming unit. 1 shape correction unit; and a second shape correcting unit correcting the shape of the frame body for pillars welded by the welding unit.

An embodiment of the roll forming apparatus for manufacturing a pillar of an automobile according to the present invention includes a frame cutting unit for cutting the pillar frame corrected by the second shape correcting unit to a predetermined length, and the cut pillar frame body. A three-dimensional bending machine for manufacturing pillars may be further included to form pillars for automobiles having a pre-designed shape by twisting and bending.

In the present invention, the first roll forming unit forms a plurality of first molding ends for forming the first partial face portion and the second partial face portion vertically erected, and forms the vertically erected first partial face portion at an acute angle and vertically It may include a second shaping end portion forming the erected second partial surface portion at an obtuse angle and a third shaping end portion forming the first partial surface portion formed at an acute angle and the second partial surface portion formed at an obtuse angle at a preset angle, respectively. .

In the present invention, the first forming end includes a lower forming roll member for partial surfaces and an upper forming roll member for partial surfaces, respectively, and gradually bends both end sides of a flat plate-shaped plate for manufacturing a pillar part by part, respectively, so that the first partial surface portion and the second forming end portion are formed. The partial face portion is formed vertically, and the second forming end portion is rotatably positioned on one side of the second forming lower roll member on which the first face portion is raised and the second forming lower roll member, and the diameter gradually increases from the top to the bottom. A side roll member for an acute angle that supports the outer surface of the first partial face portion to incline the first partial face portion inwardly by having a reverse cone shape that decreases, and is located on the other side of the second forming lower roll member, A side roll member for an obtuse angle that has a positive cone shape with a diameter gradually decreasing from the bottom to the top and supports the outer surface of the second portion face portion to incline the second portion face portion outward, the upper portion of the second forming lower roll member The rotation axis is inclined from the side and the rotation axis is inclined from the upper side of the first inner support roll member and the second forming lower roll member for supporting the inner surface of the first portion surface portion, and the inner surface is inclined from the upper side of the second forming lower roll member. A second inner support roll member supporting the inner surface of the second partial face portion, and the third forming end is in close contact with the third forming lower roll member on which the first face portion is raised and the upper surface of the first face portion toward the lower side. The third molded lower roll member includes a third molded upper roll member positioned so that the first plate support portion protrudes, and the third molded lower roll member has a first bent portion support portion for supporting the bent portion of the first portion surface portion to the inner surface at one side. The first protrusion for partial surface correction is positioned to protrude and has an inclined surface on the other side supporting the outer surface of the second partial surface portion, and the first plate support portion has a lower surface formed in a flat shape, and one side The first insertion part is located on the part surface into which the first partial surface part is inserted, and has an inclined surface on the other side to support the inner surface of the second partial surface part, and the first partial surface part is inside the first partial surface part. A first supporting inclined surface for supporting the outer surface of and a second supporting inclined surface for supporting the end of the first partial surface portion may be positioned. there is.

In the present invention, the first inner support roll member is an inclined inner surface in a state where the first round support portion formed round the end side supports the inner surface of the first partial surface bending portion, which is the boundary between the first partial surface portion and the first surface portion The inner surface of the first partial surface portion is closely supported to form the first partial surface portion into an acute angle between the side roll member for the acute angle and the second inner support roll member is rounded at the end side. With the round support part supporting the inner surface of the second partial surface bending part, which is the boundary between the second part surface part and the first surface part, the inclined inner surface closely adheres to and supports the inner surface of the second part surface part, thereby forming the obtuse angle. Between the side roll member and the surface portion of the second portion may be formed at an obtuse angle.

In the present invention, the second roll forming unit forms a third surface portion between the first surface portion and the second partial surface portion while gradually bending the other end side of the first surface portion through a plurality of fourth molding steps, The shape of the third surface bending portion, which is a boundary between the first surface portion and the third surface portion, may be corrected through the molding step.

In the present invention, the fourth molding stage includes a fourth molded lower roll member on which the first surface portion is raised and a fourth molded upper roll member in which a second plate support portion in close contact with the upper surface of the first surface portion is protruded to the lower side. The fourth molded lower roll member has a second bent support portion protruding from one side supporting the inner surface of the bent portion of the first portion surface portion, and a lower portion supporting the lower surface of the third surface portion on the other side. A first inclined surface for surface support is formed, and the second plate support part has a second insertion part on one side of the part where the first part surface part is inserted, and an upper surface support for supporting the upper surface of the third surface part on the other side. A first inclined surface is formed, and a third supporting inclined surface supporting the outer surface of the first partial surface portion and a fourth supporting inclined surface supporting the end portion of the first partial surface portion are located inside the second insertion portion of the partial surface, , The other side of the fourth molded upper roll member is positioned to protrude toward the lower side of the second plate support, overlaps with the fourth molded lower roll member, and supports the outer surface of the second partial surface on the inner surface. A protrusion for fixing the second partial surface is provided on which an inclined surface for fixing the second partial surface is located, and the protrusion for fixing the second partial surface overlaps the other side of the fourth molded lower roll member, and the inclined surface for fixing the second partial surface and Inclined surfaces for supporting the protrusions facing each other and supporting the protrusions for fixing the second partial surface may be positioned.

In the present invention, the fifth forming end is rotatably positioned on one side of the fifth forming lower roll member, the fifth forming lower roll member on which the first surface portion is raised, and a reverse cone having a gradually smaller diameter from top to bottom. The side roll member for supporting the first partial surface having a shape and supporting the outer surface of the first partial surface portion, and is rotatably positioned on the other side of the fifth forming lower roll member, and has two inclined surfaces in a V shape on the outer circumferential surface. The rotational axis is inclined at the upper side of the side roll member for supporting the second partial surface and the fifth lower roll member for supporting the third surface and the V-groove for supporting the surface, respectively, supporting the third surface and the second partial surface. A round portion for pressing formed round at an end side may include a bending roll forming roll member that presses an inner surface of the third surface bending portion, which is a boundary between the first surface portion and the third surface portion.

In the present invention, the welding part includes a plurality of welding support roll forming ends that maintain the shape of the frame body for pillars during welding and a welding machine that welds a boundary between the first part surface portion and the second portion surface portion during transportation, and the welding The support roll forming end is formed in a cone shape having an inclined surface supporting the first surface portion and has a first welding side support roll member rotatably positioned about a vertical axis and two inclined surfaces in a V shape on the outer circumferential surface. A side support roll member for second welding in which a V-groove for supporting the fourth and third surfaces, respectively, is located, and a welding for pressing the upper surface of the second surface where the first partial surface and the second partial surface are in contact. An upper roll member may be included, and a wire insertion groove capable of supplying a welding wire to a boundary between the first partial surface portion and the second partial surface portion may be provided on an outer circumferential surface of the upper roll member for welding.

In the present invention, the first shape correcting unit is formed in a cone shape having an inclined surface supporting the first surface unit, and a first side roll member for correction rotatably positioned about a vertical axis is located on the lower side of the fourth surface unit. The first lower roll member for correction has an inclined surface on which the fourth surface portion is seated and is rotatably positioned about a horizontal axis, and has an inclined surface on one side supporting the third surface portion and is positioned rotatably about a vertical axis. A second side roll member for correction, a first upper roll member for correction that is rotatably positioned about a horizontal axis and presses an upper surface of the second surface portion in contact with the first partial surface portion and the second partial surface portion, In the first lower roll member for correction, a round support supporting a bent portion between the first surface and the fourth surface is located on one side of the inclined surface, and the first upper roll member for correction has one side and the other side, respectively, for the correction. The first side roll member and the second side roll member for calibration may be positioned to partially overlap each other.

In the present invention, the first shape correcting unit is formed in a cone shape having an inclined surface supporting the first surface portion, and a first correcting side roll member rotatably positioned about a vertical axis, two inclined surfaces in a V shape on the outer circumferential surface A second straightening side roll member having a V-groove for straightening that supports the fourth and third surface parts, respectively, and the upper surface of the second surface part where the first part surface part and the second part surface part come into contact with each other. and a first straightening upper roll member that pressurizes, and one side and the other side of the first straightening upper roll member are positioned to partially overlap the first straightening side roll member and the second straightening side roll member, respectively. It can be.

In the present invention, the second shape correction unit has an inclined surface supporting the first surface portion and a second correction first side roll member rotatably positioned about a vertical axis, and the other side of the second correction first side roll member. is located on the lower side of the fourth surface portion and has an inclined surface on which the fourth surface portion is seated and is rotatably positioned about a horizontal axis, facing the second lower roll member for correction and the first side roll member for second correction The second side roll member for correction and the second side roll member for correction positioned rotatably about a vertical axis and the second lower roll member for correction, which is positioned on the upper side of the horizontal axis It rotates around and may include a second correcting upper roll member supporting the upper surface of the second surface portion.

In order to achieve the object of the present invention described above, one embodiment of a method for manufacturing a pillar of a vehicle according to the present invention continuously supplies a plate for manufacturing a pillar wound in a coil form to a roll forming apparatus, and the first non-parallel first roll forming apparatus. A method for manufacturing a pillar of a car in which a quadrangular pillar including a face part to a fourth face part is manufactured, and portions of both end sides of the plate for manufacturing the pillar are gradually bent to form one end side and the other end side of the first surface part of the plane, respectively. A first roll forming step of forming a first partial face portion that is a part of the second face portion and a second partial face portion that is the remaining portion of the second face portion, and forming a third face portion by gradually bending the other end side of the first face portion In the second roll forming step, the other end of the first face portion is bent to form a fourth face portion between the first face portion and the third face portion, and an end portion of the first portion face portion and an end portion of the second portion face portion are mutually connected. A third roll forming step of forming a second surface portion by adhering to each other, a first shape correction step of correcting the shape of the frame body for a falsely molded pillar, and an end portion of the first portion surface portion that is adhered to each other after the first shape correction step A welding step of welding the end of the second partial surface portion, a second shape correcting step of correcting the shape of the frame body for pillars welded by the welding step, and the corrected shape of the frame body for pillars by the second shape correcting step. It is characterized in that it includes a frame cutting step of cutting to a predetermined length, and a bending step of forming a pillar of a predetermined shape by bending and twisting the frame body for the pillar cut in the frame cutting step.

In the present invention, the first roll forming step is a first partial surface forming process of forming the first partial surface portion and the second partial surface portion vertically erected, and forming the vertically erected first partial surface portion at an acute angle, And a second partial surface forming process of forming the second partial surface portion erected at an obtuse angle, and the third roll forming step separates the first surface portion and the fourth surface portion by bending the flat first surface portion into a V-shape. and the second surface portion may be formed by contacting ends of the first portion surface portion and the second portion surface portion.

In the first shape correction step in the present invention, the first surface portion is closely supported by a first correction side roll member, and the second surface portion is closely adhered to and supported by a first correction upper roll member. The shape of the frame for pillars can be corrected by supporting the third and fourth surfaces in close contact with the side roll members.

The present invention has the effect of simplifying the manufacturing process, reducing manufacturing cost, and greatly improving productivity, since a pillar for an automobile having a rectangular closed cross section can be manufactured through a single roll forming process.

The present invention has the effect of minimizing the defect rate and greatly improving the manufacturing efficiency by precisely manufacturing the pillar of an automobile having a square-shaped closed cross section in a pre-designed shape through two shape correction operations before and after welding.

1 is a schematic view showing an embodiment of a roll forming apparatus for manufacturing a pillar of an automobile according to the present invention.
2 and 3 are views illustrating a first roll forming unit in the roll forming apparatus for manufacturing a pillar of a vehicle according to the present invention.
4 is a view illustrating a second roll forming unit in the roll forming apparatus for manufacturing a pillar of an automobile according to the present invention.
5 is a view illustrating a third roll forming unit in the roll forming apparatus for manufacturing a pillar of an automobile according to the present invention.
6 is a view illustrating a first shape correcting unit in the roll forming apparatus for manufacturing a pillar of an automobile according to the present invention.
7 is a view illustrating a welded part in a roll forming apparatus for manufacturing a pillar of an automobile according to the present invention.
8 is a view illustrating a second shape correcting unit in the roll forming apparatus for manufacturing a pillar of an automobile according to the present invention.
9 is a perspective view showing an embodiment of a three-dimensional bending machine for manufacturing a pillar in the roll forming device for manufacturing a pillar for an automobile according to the present invention.
10 is a partially enlarged perspective view showing an embodiment of a three-dimensional bending machine for manufacturing pillars according to the present invention.
11 and 12 are views illustrating a first frame fixing jig part and a second frame fixing jig part in the three-dimensional bending machine for manufacturing pillars according to the present invention.
13 and 14 are diagrams showing an embodiment of a frame curve guide in the three-dimensional bending machine for manufacturing pillars according to the present invention.
15 is a view showing an operation example of a three-dimensional bending machine for manufacturing pillars according to the present invention.

Hereinafter, the present invention will be described in more detail.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Prior to the detailed description of the present invention, the terms or words used in the present specification and claims described below should not be construed as being limited to common or dictionary meanings. Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, so various alternatives can be made at the time of this application. It should be understood that there may be equivalents and variations.

1 is a schematic diagram showing an embodiment of a roll forming apparatus for manufacturing a pillar of an automobile according to the present invention, and an embodiment of the roll forming apparatus for manufacturing a pillar of an automobile according to the present invention will be described in detail below with reference to FIG. do.

One embodiment of the roll forming apparatus for manufacturing a pillar for automobiles according to the present invention is a roll for manufacturing pillars for automobiles that manufactures a pillar having a quadrangular shape including first surface portions 11 to fourth surface portions 14 that are not parallel to each other. It is a foaming device.

In the roll forming apparatus for manufacturing pillars of automobiles according to the present invention, the upper and lower forming rolls are positioned rotatably about a horizontal axis, and the side forming rolls positioned on the left and right are rotatably positioned about a vertical axis. make it clear that

One embodiment of the roll forming apparatus for manufacturing a pillar for automobiles according to the present invention gradually bends portions on both end sides of the plate 10 for manufacturing a pillar, and second portions are formed at one end and the other end of the flat first surface 11, respectively. A first roll forming portion 100 forming a first portion face portion 12a serving as a part of the face portion 12 and a second portion face portion 12b serving as the remaining portion of the second face portion 12, the first face portion ( 11), the second roll forming part 200 gradually bends the other end side to form the third surface portion 13, and the other end side of the first surface portion 11 is bent to form the first surface portion 11 and the third surface portion ( 13) forming the fourth surface portion 14 therebetween and having the ends of the first partial surface portion 12a and the ends of the second partial surface portion 12b come into contact with each other to form the second surface portion 12; third roll forming unit 300, and a welding part 400 for welding the end of the first partial face portion 12a and the end of the second partial face portion 12b to each other.

In addition, an embodiment of the roll forming apparatus for manufacturing a pillar for automobiles according to the present invention further includes a coil holder 500 for continuously supplying the plate 10 for manufacturing a pillar to the first roll forming unit 100 .

The coil holder 500 is a reel holder for mounting a reel in which the pillar manufacturing plate 10 is wound in a coil form, and the plate 10 for pillar manufacturing is moved to the first roll forming unit 100 while unwinding the coil body mounted on the reel holder. ) is supplied continuously.

The coil holding unit 500 has a known structure in which the plate 10 for manufacturing a pillar wound in a coil shape can be continuously supplied to the first roll forming unit 100 while unwinding the coil by holding a reel wound in a coil shape. As various modifications and implementations can be performed, more detailed descriptions will be omitted.

In addition, an embodiment of the roll forming apparatus for manufacturing a pillar for automobiles according to the present invention is positioned between the third roll forming unit 300 and the welding unit 400 for a pillar temporarily formed by the third roll forming unit 300. A first shape correcting unit 600 correcting the shape of the frame body and a second shape correcting unit 700 correcting the shape of the frame body for pillars welded by the welding unit 400 are further included.

In addition, an embodiment of the roll forming apparatus for manufacturing pillars of automobiles according to the present invention includes a frame cutting unit 800 that cuts the frame body for pillars corrected by the second shape correcting unit 700 into a predetermined length, and A three-dimensional bending machine 1000 for manufacturing a pillar is further included to form a pre-designed automobile pillar by twisting and bending the frame body for the pillar.

The frame cutting unit 800 includes a rotating cutting blade and includes a first roll forming unit 100, a second roll forming unit 200, a third roll forming unit 300, a first shape correcting unit 600, After passing through the welding part 400 and the second shape correcting part 700, the pillar frame body continuously formed is cut into a predetermined length, and the pillar frame cut into the pillar bending part by the three-dimensional bending machine 1000 for pillar manufacturing to be described later. allows the body to be transported.

The three-dimensional bending machine 1000 for manufacturing a pillar twists and bends a frame body for a pillar cut to a predetermined length to complete the manufacturing of a pre-designed automobile pillar, which will be described in detail below.

Meanwhile, FIGS. 2 and 3 are diagrams illustrating the first roll forming unit 100 in the roll forming apparatus for manufacturing pillars of automobiles according to the present invention. Referring to FIGS. 2 and 3 , the first roll forming unit 100 An embodiment of is described in detail below.

A first roll forming unit 100, a second roll forming unit 200, a third roll forming unit 300, a first shape correcting unit 600, a welding unit 400, and a second shape correcting unit described below. Each roll used for molding in (700) is rotatably installed, and the outer circumferential surface adheres closely to the outer and inner surfaces of the plate 10 for pillar manufacture and rotates to form the plate 10 for pillar manufacture in a bent manner. Even if it is not described as being rotated, it is revealed that it is a structure that can be variously modified and implemented in the same form as the structure in which the forming roll is rotated in the roll forming device.

The first roll forming unit 100 includes a plurality of forming stages, and each forming stage, that is, the plurality of forming stages includes a lower forming roll portion and an upper forming roll portion, respectively, to partially cover both end sides of the plate 10 for pillar manufacturing. It is gradually bent minute by minute to form a portion of the second face portion 12 connected to the first face portion 11 and the remaining portion of the second face portion 12.

In more detail, the first roll forming unit 100 includes a plurality of molding stages and bends one end side at an acute angle with respect to the plane of the first surface portion 11 to form an acute-angled first partial surface portion 12a, The side of the tartan portion is bent at an obtuse angle to form an obtuse angle second partial face portion 12b.

The first roll forming unit 100 includes a plurality of first forming ends 110 including a plurality of roll forming stages for partial surfaces forming the first partial surface portion 12a and the second partial surface portion 12b to stand vertically. , the second molding end portion 120 forming the vertically erected first partial face portion 12a at an acute angle and forming the vertically erected second partial face portion 12b at an obtuse angle, the first partial face portion 12a formed at an acute angle and a third molding end 130 forming the second portion surface portion 12b formed at an obtuse angle with each other at a predetermined angle.

The plurality of first forming ends 110 include a lower forming roll member 111 for partial surfaces and an upper forming roll member 112 for partial surfaces, respectively, and partially cover both ends of the flat plate-shaped plate 10 for manufacturing pillars. It is gradually bent minute by minute to vertically form the first partial face portion 12a and the second partial face portion 12b.

Referring to (a) of FIG. 2 , the lower forming roll member 111 for the partial surface of the first first forming end 110 among the plurality of first forming ends 110 is a plate supporting both ends of the plate 10 for manufacturing pillars. The support protrusions 111c protrude on both sides, and the upper forming roll member 112 for the partial surface of the first first molding end 110 is inserted between the plate support protrusions 111c to form the upper surface of the plate 10 for manufacturing pillars. A flat support protrusion 112b having a flat lower surface pressing the is positioned to protrude toward the lower side.

The flat support protrusion 112b presses at least 95% or more of the area of the upper surface of the plate 10 for pillar manufacture to stably maintain the plane of the plate 10 for pillar manufacture that is continuously supplied, and the plate 10 for pillar manufacture Fixed in a flat state, the first roll forming unit 100, the second roll forming unit 200, the third roll forming unit 300, the first shape correcting unit 600, the welding unit 400, and the second shape It can be stably molded through the correction unit 700.

In addition, referring to FIG. 2 (b), FIG. 2 (c), and FIG. 3 (a), lower molding for partial surfaces of the remaining plurality of first molding ends 110 among the plurality of first molding ends 110 The roll member 111 supports the outer surface of the first partial surface portion 12a and the outer surface of the second partial surface portion 12b, respectively, so that both ends of the plate 10 for pillar manufacture are bent. The first partial surface shaping projection 111a and the second partial surface shaping projection 111b, in which the inclined surface and the outer inclined surface for the second partial surface face each other, protrude from both sides.

In addition, the upper forming roll member 112 for the partial surface of the remaining plurality of first forming ends 110 among the plurality of first forming ends 110 has the inner surface of the first partial face portion 12a and the second forming roll member 112 on both side surfaces, respectively. The inner inclined surface for the first partial surface and the inner inclined surface for the second partial surface, which support the inner surface of the partial surface portion 12b to bend both ends of the plate 10 for pillar manufacturing, are located, and the lower surface is the plate 10 for manufacturing pillars. The third partial surface forming protrusion 112a formed in a plane in close contact with the upper surface of the is positioned to protrude from the bottom.

The outer inclined surface for the first partial surface and the inner inclined surface for the first partial surface have a corresponding inclination, and support the outer and inner surfaces of the first partial surface portion 12a in close contact with each other so that one end side of the plate 10 for manufacturing pillars is bent. The outer inclined surface for the second partial surface and the inner inclined surface for the second partial surface have corresponding inclinations so that the outer and inner surfaces of the second partial surface 12b are in close contact with each other. The second partial surface portion 12b may be formed while the other end side of the plate 10 for manufacturing the pillar is bent.

The plurality of first molding ends 110 are formed to gradually increase inclination in the molding progress direction, that is, in the transport direction of the plate 10 for producing pillars, so that the first partial surface portion 12a and the second partial surface portion 12b are formed in the vertical direction. to be able to build

That is, the first partial surface portion 12a and the second partial surface portion 12b are formed between the first partial surface shaping projection 111a and the third partial surface shaping projection 112a, and between the second partial surface shaping projection 111b and the third partial surface shaping projection 111b. The third partial surface is formed to be erected in the vertical direction while being bent so that the inclination gradually increases between the molding protrusions 112a.

The second molding end 120 is formed at an acute angle by further inwardly bending the first portion face portion 12a erected in the vertical direction, and formed at an obtuse angle by partially extending the second portion face portion 12b outward in the vertical direction.

Referring to FIG. 3 (b) in more detail, the second molding end 120 is the first surface portion 11, that is, the second forming lower roll member 121 on which the pillar manufacturing plate 10 is placed, the second forming end 120 It is rotatably positioned on one side of the lower roll member 121, has a reverse cone shape with a diameter gradually decreasing from top to bottom, and supports the outer surface of the first partial face portion 12a to form the first partial face portion 12a. It is located on the other side of the acute angle side roll member 122 for inclining inward, the second forming lower roll member 121, and has a forward cone shape with a diameter gradually decreasing from the bottom to the top, and the second partial face portion 12b The side roll member 123 for the obtuse angle that supports the outer surface of the second portion surface portion 12b to incline outward, and the rotation shaft is positioned inclined at the upper side of the second forming lower roll member 121 to incline the inner side of the The first inner support roll member 124, which supports the inner surface of the first portion surface portion 12a, and the second forming lower roll member 121, the rotating shaft is inclined at the upper side, so that the inner surface is the second portion. It includes a second inner support roll member 125 supporting the inner surface of the surface portion 12b.

The side roll member 122 for an acute angle and the side roll member 123 for an obtuse angle are rotatable around an axial direction perpendicular to the axial direction of the second forming lower roll member 121, that is, a vertical axis of rotation. Positioning is taken as an example.

The inner surface of the first inner backup roll member 124 is inclined at an angle corresponding to the outer circumferential surface of the side roll member 122 for acute angle, and the inner surface of the second inner backup roll member 125 is the side surface for obtuse angle. It is positioned inclined at an inclination corresponding to the outer circumferential surface of the roll member 123.

The first inner support roll member 124 is positioned so that the axis of rotation is inclined so that the inner surface facing the side roll member 122 for an acute angle is inclined at an angle corresponding to the outer circumferential surface of the side roll member 122 for an acute angle. , The second inner support roll member 125 is positioned so that the rotating shaft is tilted so that the inner surface facing the obtuse side roll member 123 is inclined at an inclination corresponding to the outer circumferential surface of the obtuse side roll member 123 for obtuse angle. It will be.

The end side of the first inner backup roll member 124 is rounded so as to support the bent inner surface of the first partial surface portion 12a, and the end side of the second inner backup roll member 125 is rounded so that the second inner backup roll member 125 is rounded. The partial face portion 12b supports the bent inner face.

The first inner support roll member 124 is inclined with the first round support part formed round the end side supporting the inner surface of the first part surface bending part, which is the boundary between the first part surface part 12a and the first surface part 11. The inner surface adheres to and supports the inner surface of the first partial surface portion 12a to form the first partial surface portion 12a into an acute angle between the side roll member 122 for acute angle.

In addition, in the second inner support roll member 125, the second round support portion formed round the end side supports the inner surface of the second partial surface bending portion, which is the boundary between the second partial surface portion 12b and the first surface portion 11. The inclined inner surface adheres to and supports the inner surface of the second portion surface portion 12b to form the second portion surface portion 12b into an obtuse angle between the side roll member 123 for obtuse angle.

The third shaping end 130 finely corrects the first partial surface 12a formed at an acute angle and the second partial surface 12b formed at an obtuse angle at the second shaping end 120, respectively, at a predetermined angle, that is, at a predetermined angle. It serves to precisely form an acute angle and a preset obtuse angle.

Referring to (c) of FIG. 3, the third molding end 130 is the first surface portion 11, that is, the third molding lower roll member 131 on which the pillar manufacturing plate 10 is mounted, and the first surface portion toward the lower side ( 11) That is, it includes the third molded upper roll member 132 positioned so that the first plate support 132a in close contact with the upper surface of the pillar manufacturing plate 10 protrudes.

And, in the third molded lower roll member 131, the first bending part supporting part 131a supporting the first part surface bending part to the inner surface is protruded on one side, and the outside of the second part surface part 12b on the other side. The first protrusion 131b for partial surface correction having an inclined surface supporting the side surface is positioned to protrude.

In addition, the lower surface of the first plate support portion 132a of the third molded upper roll member 132 is formed as a flat surface, and the first partial surface portion 12a is inserted into one side of the first plate support portion 132a. The first insertion portion 132b is positioned, and the other side surface of the first plate support portion 132a has an inclined surface supporting the inner surface of the second partial surface portion 12b.

The inner side surface of the first protrusion part 131b for partial surface correction and the other side surface of the first plate support part 132a are formed to have the same inclined surface as the predetermined angle of the second partial surface part 12b, and the second partial surface part 12b ), respectively, to support the inner and outer surfaces of the second portion so that the face portion 12b is accurately formed at a predetermined angle.

In addition, the first partial surface insertion portion 132b has a first supporting inclined surface supporting the outer surface of the first partial surface portion 12a and a second supporting inclined surface supporting the end portion of the first partial surface portion 12a. The first supporting inclined surface is formed to have the same inclined surface as the predetermined angle of the first partial surface portion 12a, and the second supporting inclined surface is formed in succession with the first supporting inclined surface to form an end side of the first partial surface portion 12a. By supporting the inclination angle of the first portion surface portion 12a is no longer bent inward.

In the third molding end portion 130, the first supporting inclined surface supports the outer surface of the first partial surface portion 12a in the first inserting portion 132b, and the end side is supported by the second supporting inclined surface to form the first part. The surface portion 12a is formed at a predetermined angle, and the inclined surface located on the other side of the first plate support portion 132a and the inner surface of the first protrusion 131b for partial surface correction are inside the second partial surface portion 12b. The second partial face portion 12b is formed at a predetermined angle while supporting the side surface and the outer surface, respectively.

4 is a view illustrating the second roll forming unit 200 in the roll forming apparatus for manufacturing a pillar of an automobile according to the present invention. Referring to FIG. The third surface portion 13 is formed by gradually bending the other end side of the first surface portion 11 formed thereon.

The third face portion 13 is formed by gradually bending the inside of the second partial face portion 12b from the other end side of the first face portion 11, that is, between the first face portion 11 and the second partial face portion 12b. do.

The second roll forming unit 200 is formed between the first surface portion 11 and the second partial surface portion 12b while gradually bending the other end side of the first surface portion 11 through the plurality of fourth forming stages 210. The third surface portion 13 is formed on the surface, and the shape of the third surface bending portion, which is the boundary between the first surface portion 11 and the third surface portion 13, is corrected through the fifth molding stage 220.

Referring to (a) of FIG. 4, the fourth molding stage 210 has the first surface portion 11, that is, the fourth forming lower roll member 211 on which the pillar manufacturing plate 10 is placed, and the first surface portion toward the lower side ( 11) That is, it includes the fourth molded upper roll member 212 positioned so that the second plate support 212a protrudes from the upper surface of the plate 10 for manufacturing the pillars.

In addition, the fourth molded lower roll member 211 has a second bent support part 211a protruding from one side and supporting the first part bent part to the inner surface, and the lower surface of the third surface part 13 on the other side. A first inclined surface for supporting the lower surface is formed.

In addition, the lower surface of the second plate support portion 212a of the fourth molded upper roll member 212 is formed as a flat surface, and one side of the second plate support portion 212a is a partial surface into which the first partial surface portion 12a is inserted. The second insertion portion 212b is positioned, and a first inclined surface for supporting the top surface of the third surface portion 13 is formed on the other side of the second plate support portion 212a.

The first inclined surface for supporting the upper surface faces the first inclined surface for supporting the lower surface and is formed at an angle corresponding to that of the first inclined surface for supporting the lower surface and may be in close contact with the upper surface of the third surface portion 13.

The plurality of fourth molding stages 210 are formed so that the first inclined surface for supporting the lower surface gradually increases in the molding progress direction, that is, in the transport direction of the plate 10 for pillar manufacturing, so that the inclination angle of the third surface portion 13 is adjusted. While gradually increasing, the third side surface is formed to be bent at a predetermined inclination angle.

The third supporting inclined surface supporting the outer surface of the first partial surface portion 12a and the fourth supporting inclined surface supporting the end of the first partial surface portion 12a are located inside the second partial surface insertion portion 212b, The third supporting inclined surface is formed to have the same inclined surface as the predetermined angle of the first partial surface portion 12a, and the fourth supporting inclined surface is formed in succession with the third supporting inclined surface to support the end side of the first partial surface portion 12a. Thus, the inclination angle of the first partial face portion 12a is no longer bent inward.

The fourth molding stage 210 is a first inclined surface for supporting the lower surface of the other side of the first surface portion 11 in a state in which the first partial surface portion 12a is inserted into the second partial surface portion 212b and the position is fixed. The third surface portion 13 is formed while gradually bending between the first inclined surface for supporting the upper surface and the upper surface.

In addition, the other side of the fourth molded upper roll member 212 is positioned to protrude toward the lower side of the second plate support portion 212a and overlaps with the fourth molded lower roll member 211, and the second partial surface portion on the inner surface ( 12b) is provided with a protrusion 212c for fixing the second partial surface on which an inclined surface for fixing the second partial surface supporting the outer surface is located.

For example, the inclined surface for fixing the second partial surface is formed at an inclined angle capable of being supported in close contact with the outer surface of the second partial surface portion 12b.

On the other side of the fourth molded lower roll member 211, the overlapping protrusion for fixing the second partial surface is overlapped, and the inclined surface for supporting the protrusion that faces the inclined surface for fixing the second partial surface and supports the protrusion for fixing the second partial surface is located. do.

The inclined surface for supporting the protrusion is positioned to face the inclined surface for fixing the second partial surface and has an inclination angle corresponding to the inclined surface for fixing the second partial surface, so that the inclined surface for fixing the second partial surface is closely attached and supported, thereby supporting the protruding part for fixing the second partial surface. The second part stably supports the outer surface of the second portion surface portion 12b so that the third surface portion 13 is formed while gradually bending between the first inclined surface for supporting the lower surface and the first inclined surface for supporting the upper surface. The position of the face part 12b is fixed.

In the fourth molding stage 210, the first partial surface portion 12a is inserted into the partial surface second insertion portion 212b to be fixed in position, and the second partial surface portion 12b is supported on the inclined surface for fixing the second partial surface. In this state, the third surface portion 13 is formed by gradually bending the other side of the first surface portion 11 between the first inclined surface for supporting the lower surface and the first inclined surface for supporting the upper surface.

In addition, the fifth molding stage 220 is the bent portion of the third surface portion 13 formed on the other side of the first surface portion 11 through the fourth molding stage 210, that is, the first surface portion 11 and the third surface portion. The shape of the third surface bending part is corrected by pressing the inner surface of the third surface bending part, which is the boundary of (13).

Referring to (b) of FIG. 4, the fifth molding stage 220 includes the fifth molding lower roll member 221 on which the pillar manufacturing plate 10, that is, the first surface portion 11 is lifted, and the fifth molding lower roll member ( 221) is rotatably positioned on one side, has a reverse cone shape with a diameter gradually decreasing from top to bottom, and supports the outer surface of the first partial surface portion 12a. Side roll member 222 for supporting the first partial surface , It is rotatably positioned on the other side of the fifth molded lower roll member 221, and has two inclined surfaces in a V shape on the outer circumferential surface to support the third surface portion 13 and the second partial surface portion 12b, respectively. The side roll member 223 for supporting the second partial surface where the V-groove portion 223a is located, and the round portion for pressing formed on the end side of the fifth forming lower roll member 221 at an angle of rotation at the upper side is It includes a bending part forming roll member 224 that presses the inner surface of the third surface bending part, which is the boundary between the first surface part 11 and the third surface part 13.

In the fifth forming stage 220, the first surface portion 11 is seated on the fifth forming lower roll member 221, and the first partial surface portion 12a is the part of the side roll member 222 for supporting the first partial surface. It is supported on the outer circumferential surface, and the third surface portion 13 and the second partial surface portion 12b are formed in a state where they are supported within the V-groove portion 223a for supporting the surface of the side roll member 223 for supporting the second partial surface, respectively. The round part for pressing at the end side of the roll member 224 presses the inner surface of the third surface bending part to precisely shape the third surface bending part, which is the boundary between the first surface part 11 and the third surface part 13, in a predetermined shape. correct

5 is a view illustrating a third roll forming unit 300 in the roll forming apparatus for manufacturing a pillar of an automobile according to the present invention, and referring to FIG. 5 , the third roll forming unit 300 includes a plurality of sixth forming stages ( 310) and the seventh molding stage 320, the flat first surface portion 11 is bent into a V shape to form the first surface portion 11 and the fourth surface portion 14 separately, and the first partial surface portion ( 12a) and the end of the second portion surface portion 12b are brought into contact to form the second surface portion 12.

Referring to (a) of FIG. 5, the sixth molding stage 310 is a first V-shaped molding groove in which the first surface portion 11, that is, the pillar manufacturing plate 10 is lifted and the first surface portion 11 is inserted into the inside. The sixth molded lower roll member 311 equipped with (311a), the third plate support portion 312a having a V-shaped lower surface and being in close contact with the first surface portion 11 toward the lower side, that is, the upper surface of the plate 10 for manufacturing pillars. ) includes a sixth molded upper roll member 312 positioned so as to protrude.

In addition, a third bending part support part 311b for supporting the first partial surface bending part to the inner surface is protruded from one side of the first V-shaped molding groove part 311a, and a third part supporting the third surface part 13 is protruded from the other side. The three-sided support portion 311c protrudes.

The third surface support part 311c has an inclined surface corresponding to the inclined surface of the third surface part 13, and the third surface part 13 is supported in close contact with the inclined surface.

In addition, the third plate support portion 312a of the sixth molded upper roll member 312 is formed in a V-shaped lower surface corresponding to the bottom surface of the first V-shaped molded groove portion 311a, and the third plate support portion 312a The third insertion portion 312b is positioned on one side of the first partial surface portion 12a is inserted, and the fourth partial portion into which the second partial surface portion 12b is inserted is positioned on the other side of the first plate support portion 132a. An insert 312c is positioned.

The third insert portion 312b has a fifth supporting inclined surface supporting the outer surface of the first partial surface portion 12a and a sixth supporting inclined surface supporting the end portion of the first partial surface portion 12a. The fifth support inclined surface is formed to have an inclined surface in close contact with the outer surface of the first partial surface portion 12a, and the sixth supporting inclined surface is formed in succession with the fifth supporting inclined surface to support the end side of the first partial surface portion 12a. Thus, the inclination angle of the first partial face portion 12a is no longer bent inward.

In addition, the fourth partial insert 312c has a seventh supporting inclined surface supporting the outer surface of the second partial surface portion 12b and an eighth supporting inclined surface supporting the end of the second partial surface portion 12b. The seventh supporting inclined surface is formed to have an inclined surface in close contact with the outer surface of the second partial surface portion 12b, and the eighth supporting inclined surface is formed in succession with the seventh supporting inclined surface to the end side of the second partial surface portion 12b. By supporting the inclination angle of the second portion surface portion 12b is no longer bent inward.

In the sixth molding stage 310, the first partial face portion 12a and the second partial face portion 12b are inserted into the third partial insert portion 312b and the fourth partial insert portion 312c, and the position is fixed. , In a state in which the third surface portion 13 is supported by the third surface support portion 311c, the first surface portion 11 is pressed with the third plate support portion 312a so that the first surface portion 11 is the first V-shaped molded groove portion. (311a) to be bent in a V shape.

The plurality of first molding ends 110 are formed to gradually increase inclination in the molding progress direction, that is, in the transport direction of the plate 10 for producing pillars, so that the first partial surface portion 12a and the second partial surface portion 12b are formed in the vertical direction. to be able to build

The first inclined surface for supporting the upper surface faces the first inclined surface for supporting the lower surface and is formed at an angle corresponding to that of the first inclined surface for supporting the lower surface and may be in close contact with the upper surface of the third surface portion 13.

The plurality of sixth molding stages 310 have the inclined surface of the V-groove gradually increase in the molding progress direction, that is, in the transport direction of the pillar manufacturing plate 10, so that the first surface part 11 is bent in a V shape and the fourth surface part 11 is bent. It is molded so that the angle between it and (14) gradually decreases.

Referring to (b) of FIG. 5, the seventh molding stage 320 is a seventh molding lower roll member equipped with a second V-shaped molding groove 321a on which the first surface portion 11 and the fourth surface portion 14 are seated. (321), the fifth insertion portion 322a is located on one side of the lower surface into which the first partial surface portion 12a is inserted, and the partial surface into which the second partial surface portion 12b is inserted on the other side of the lower surface. It includes a seventh shaping upper roll member 322 where the 6 insertion portion 322b is positioned and a seventh shaping side roll member 323 supporting the outer surface of the third surface portion 13.

The fifth partial surface portion 322a has a ninth supporting inclined surface supporting the outer surface of the first partial surface portion 12a and a tenth supporting inclined surface supporting an end portion of the first partial surface portion 12a. The ninth supporting inclined surface is formed to have an inclined surface in close contact with the outer surface of the first partial surface portion 12a, and the tenth supporting inclined surface is formed in succession with the ninth supporting inclined surface to support the end side of the first partial surface portion 12a. Thus, the inclination angle of the first partial face portion 12a is no longer bent inward.

In addition, the sixth insertion portion 322b has an 11th supporting inclined surface supporting the outer surface of the second partial surface portion 12b and a 12th supporting inclined surface supporting the end of the second partial surface portion 12b. The 11th supporting inclined surface is formed to have an inclined surface in close contact with the outer surface of the second partial surface portion 12b, and the 12th supporting inclined surface is formed in succession with the 11th supporting inclined surface to the end side of the second partial surface portion 12b. By supporting the inclination angle of the second portion surface portion 12b is no longer bent inward.

The seventh molding stage 320 narrows the angle between the first surface portion 11 and the fourth surface portion 14 and forms the first part through the fifth partial insertion portion 322a and the sixth partial insertion portion 322b. The gap between the partial face portion 12a and the second partial face portion 12b is gradually narrowed so that the first partial face portion 12a and the second partial face portion 12b can finally come into contact.

6 is a view illustrating a first shape correcting unit 600 in a roll forming device for manufacturing a pillar of an automobile according to the present invention, and referring to FIG. 6 (a), the first shape correcting unit 600 is a first surface portion The first side roll member 610 for correction formed in a cone shape having an inclined surface supporting the 11 and rotatably positioned about a vertical axis, and positioned on the lower side of the fourth surface portion 14, the fourth surface portion ( 14) has an inclined surface on which the first lower roll member 620 for correction is seated and rotatably positioned around a horizontal axis, has an inclined surface on one side supporting the third surface portion 13 and is rotatably positioned around a vertical axis The second side roll member 630 for correction, which is rotatably positioned about a horizontal axis and presses the upper surface of the second surface portion 12 where the first partial surface portion 12a and the second partial surface portion 12b are in contact with each other. It includes a first upper roll member 640 for use.

In addition, the first lower roll member 620 for correction is a bent portion between the first surface portion 11 and the fourth surface portion 14, that is, located at the boundary between the first surface portion 11 and the fourth surface portion 14. The bending support 621 supporting the fourth bending part is located on one side of the inclined surface and supports the fourth surface part 14 together with the fourth surface part 14 so that the corrective work is more stable and the pillar is used in a preset precise shape. Allows the frame body to be formed.

In addition, one side and the other side of the first upper roll member 640 for calibration are positioned to partially overlap the first side roll member 610 for calibration and the second side roll member 630 for calibration, respectively. It is possible to stably press the second surface portion 12 while being supported on the inner surfaces of the side roll member 610 and the second side roll member 630 for correction.

The first shape correction unit 600 adheres to and supports the first surface portion 11 with the first side roll member 610 for correction, and uses the first upper roll member 640 for correction to support the second surface portion 12. The third surface portion 13 is closely supported by the second side roll member 630 for correction, and the fourth surface portion 14 is closely supported by the first lower roll member 620 for correction. That is, by supporting the four surfaces with different straightening rolls, the shape of the frame body for pillars can be corrected to a predetermined shape.

Referring to (b) of FIG. 6, the first shape correcting unit 600 is formed in a cone shape having an inclined surface supporting the first surface unit 11 and is rotatably positioned about a vertical axis. The member 650 has two inclined surfaces in a V shape on its outer circumferential surface, and the second straightening side roll member has a V-groove 661 for straightening, which supports the fourth surface part 14 and the third surface part 13, respectively. 660, and a first straightening upper roll member 670 that presses the upper surface of the second surface portion 12 where the first partial surface portion 12a and the second partial surface portion 12b abut.

The first straightening upper roll member 670 has one side and the other side partially overlapping the first straightening side roll member 650 and the second straightening side roll member 660, respectively, so that the first straightening side roll member 670 overlaps with them. The second surface portion 12 can be stably pressed while being supported on the inner surface of the member 650 and the second side roll member 660 for correction.

The first shape correcting unit 600 adheres to and supports the first surface portion 11 with the first side roll member 650 for correction, and uses the upper roll member 670 for first correction to support the second surface portion 12. In other words, the four surfaces of the frame body for pillars are corrected in three directions by closely supporting the third surface portion 13 and the fourth surface portion 14 with the second straightening side roll member 660. It is supported by rolls so that the shape of the frame body for pillars can be corrected to a predetermined shape.

The first shape correcting unit 600 presses the frame body for pillars formed through the first side roll member 650 and the second side roll member 660 for correction from both sides, and also presses the first shape correction unit 600 from the upper side. The stress of the pillar frame body can be relieved by pressing with the upper roll member 670 for correction, and there is an effect of significantly reducing the amount of S/Back.

7 is a view illustrating a welded portion 400 in the roll forming apparatus for manufacturing a pillar of an automobile according to the present invention, and referring to FIG. 7, the welded portion 400 supports a plurality of welds that maintain the shape of a frame body for a pillar during welding. The shape of the pillar frame body by the roll forming end 410 for welding support including the welding machine that welds the boundary between the first part surface portion 12a and the second partial surface portion 12b during transfer with the roll forming end 410 for use. In the state of holding, the end of the first partial face portion 12a and the end portion of the second partial face portion 12b that are in contact with each other are welded and fixed using a welder.

The roll forming end 410 for welding support is formed in a cone shape having an inclined surface supporting the first surface portion 11 and is rotatably positioned about a vertical axis for the first welding side support roll member 411, on the outer circumferential surface A second welding side support roll member 412 having two inclined surfaces in a V shape and having a V groove for supporting the fourth surface portion 14 and the third surface portion 13, respectively, and the first partial surface portion 12a and an upper roll member 413 for welding that presses the upper surface of the second surface portion 12 in contact with the second portion surface portion 12b.

The outer circumferential surface of the upper roll member 413 for welding is provided with a wire insertion groove 413a for supplying a wire for welding to the boundary between the first partial surface portion 12a and the second partial surface portion 12b.

The roll forming stage 410 for welding support continuously supplies the welding wire to the boundary between the first partial surface portion 12a and the second partial surface portion 12b through the upper welding roll member 413, A welding operation between the first partial face portion 12a and the second partial face portion 12b can be continuously performed by the welding machine.

The welder is a spot welder as an example, and in addition to this, it is revealed that various modifications can be performed using a known welder capable of welding a frame structure to be transported in the longitudinal direction.

8 is a view illustrating the second shape correcting unit 700 in the roll forming device for manufacturing pillars of automobiles according to the present invention. Referring to FIG. 8, the welded pillar frame body is finally corrected by the welding unit 400. Thus, it can be accurately manufactured into a pre-designed precise shape, that is, a quadrangular pillar including first to fourth face portions 11 to 14 that are not parallel to each other.

The second shape correcting unit 700 includes a first side roll member 710 for second correction, which has an inclined surface supporting the first surface portion 11 and is rotatably positioned about a vertical axis, and a first side surface for second correction. The second lower roll member 720 for correction is located on the lower side of the fourth surface portion 14 from the other side of the roll member 710 and has an inclined surface on which the fourth surface portion 14 is seated and is rotatably positioned about a horizontal axis. ), the second side roll for the second correction positioned to face the first side roll member 710 for the second correction and having an inclined surface on one side supporting the third surface portion 13 and positioned rotatably around a vertical axis. The member 730 is located on the upper side of the second lower roll member 720 for calibration, rotates about a horizontal axis, and includes a second upper roll member 740 for supporting the upper surface of the second surface portion 12. do.

The second shape correction unit 700 includes a first side roll member 710 for the second correction, an upper roll member 740 for the second correction, a second side roll member 730 for the second correction, and a second correction The lower roll member 720 is brought into close contact with the first surface portion 11, the second surface portion 12, the third surface portion 13, and the fourth surface portion 14, respectively, to form the first surface portion 11 and the second surface portion 12. ), the third surface portion 13, and the fourth surface portion 14 are pressed, and the frame body for the pillar welded by the welding portion 400 is finally corrected to have a pre-designed exact shape, that is, the first surface portion 11 that is not parallel to each other. ) to the fourth surface portion 14, so that it can be precisely and continuously manufactured with a square-shaped pillar.

Meanwhile, FIG. 9 is a perspective view showing an embodiment of a three-dimensional bending machine 1000 for manufacturing pillars in the roll forming apparatus for manufacturing pillars of an automobile according to the present invention, and FIG. 10 is a three-dimensional bending machine for manufacturing pillars according to the present invention ( 1000) is an enlarged perspective view showing an embodiment, and FIGS. 11 and 12 are a first frame fixing jig part 1100 and a second frame fixing jig part in the three-dimensional bending machine 1000 for manufacturing a pillar according to the present invention. It is a diagram illustrating 1200.

13 and 14 are diagrams showing an embodiment of the frame curve guide 1500 in the three-dimensional bending machine for manufacturing pillars according to the present invention, and FIG. 15 is the three-dimensional bending machine for manufacturing pillars according to the present invention ( 1000), it shows an example of hanging and fixing the frame body 900 for a pillar bent upward by operating the upper bending fixing jig part, which will be described later.

An embodiment of the three-dimensional bending machine 1000 for manufacturing pillars in the roll forming apparatus for manufacturing pillars for automobiles according to the present invention will be described in detail below with reference to FIGS. 9 to 15 .

The three-dimensional bending machine 1000 for manufacturing pillars bends and twists the frame body 900 for pillars cut by the frame cutting unit 800 to form a pre-designed pillar shape.

The 3D bending machine 1000 for manufacturing pillars is positioned on a straight line with the frame cutting unit 800 and is provided with a frame body 900 for pillars that is cut by the frame cutting unit 800 and then transported in a straight direction, and the bending process is performed immediately. is positioned to perform

That is, the 3D bending machine 1000 for manufacturing pillars directly receives and bends the frame body 900 for pillars formed by the second shape correcting unit 700 and then cut by the frame cutting unit 800 through linear movement. It is finally molded into the shape of a pre-designed automobile pillar.

On the other hand, in the roll forming apparatus for manufacturing pillars of automobiles according to the present invention, one embodiment of the 3D bending machine 1000 for manufacturing pillars is a quadrilateral including first to fourth surface parts 11 to 4 that are not parallel to each other. By rotating the first frame fixing jig part 1100, the second frame fixing jig part 1200, and the second frame fixing jig part 1200 holding both ends of the shaped pillar frame body 900 at a preset radius, Rotating the frame bending rotation unit 1300 for bending the pillar frame body 900 and the second frame fixing jig unit 1200 in the axial direction of the pillar frame body 900 to twist the pillar frame body 900 The curve of the frame body 900 for pillars positioned between the frame twisting rotation unit 1400, the first frame fixing jig unit 1100 and the second frame fixing jig unit 1200 and bent by the frame bending rotation unit 1300 and a frame curve guiding unit 1500 for guiding.

One embodiment of the three-dimensional bending machine includes a frame bending lifting unit 1600 that moves the frame twisting rotating unit 1400 up and down, and a jig linear moving unit 1700 that moves the frame bending lifting unit 1600 forward and backward. more includes

The first frame fixing jig part 1100 includes a first jig support member 1110 having a V groove in which the first surface part 11 and the fourth surface part 14 are seated, the second surface part 12 and the third surface part ( 13) and a first jig fixing member 1120 for fixing the pillar frame body 900 by pressurizing the first jig fixing member 1120, and a first jig lifting part 1130 for lifting and lowering the first jig fixing member 1120. do.

In addition, the second frame fixing jig part 1200 includes a second jig supporting member 1210 having a V-groove in which the first surface part 11 and the fourth surface part 14 are seated, the second surface part 12 and the third A second jig fixing member 1220 for fixing the pillar frame body 900 by pressing the surface portion 13, and a second jig elevating portion 1230 for lifting and lowering the second jig fixing member 1220 to be characterized

The first jig elevating unit 1130 and the second jig elevating unit 1230 are hydraulic cylinders as an example, and in addition, a ball screw type linear actuator, a rack gear and a pinion gear meshed with the rack gear and rotated by a motor are included. The bar can be variously modified and implemented using a known lifting and lowering device such as a rack and pinion structure that converts the rotational force of the motor into linear movement, and further detailed descriptions are omitted.

The first frame fixing jig part 1100 is raised by the first jig support member 1110 and the first jig elevating part 1130 having a V-groove in which the first surface part 11 and the fourth surface part 14 are seated. , The pillars cut by the frame cutting part 800 through the first jig fixing member 1120 that moves downward and presses the second surface part 12 and the third surface part 13 to fix the frame body 900 for pillars. It is possible to directly receive the dragon frame body 900 through linear movement and fix one end side of the pillar frame.

In addition, the second frame fixing jig part 1200 has a V groove on which the first surface part 11 and the fourth surface part 14 are seated are formed on the second jig supporting member 1210 and the second jig elevating part 1230. It is cut by the frame cutting unit 800 through the second jig fixing member 1220 that fixes the frame body 900 for pillars by moving up and down and pressurizing the second and third surfaces 12 and 13 by The other end side of the frame for pillars can be fixed by receiving the transferred frame body 900 for pillars through linear movement.

The frame curve guide part 1500 includes a plurality of curve guide block parts 1510, 1520, 1530, and 1540 disposed along a predetermined curvature on a plane to guide the bending of the frame body 900 for pillars in one direction. do.

The plurality of curve guide block parts 1510, 1520, 1530, and 1540 are disposed along a preset curvature in the bending direction of the pillar frame body 900 and positioned through the pillar frame body 900.

In more detail, the frame curve guide part 1500 is arranged along a predetermined curvature from the first frame fixing jig part 1100 to the second frame fixing jig part 1200 on a plane, so that the frame body 900 for pillars moves in one direction. Includes a first curve guide block portion 1510, a second curve guide block portion 1520, a third curve guide block portion 1530, and a fourth curve guide block portion 1540 for guiding bending into do.

In addition, the first curve guide block part 1510, the second curve guide block part 1520, the third curve guide block part 1530, and the fourth curve guide block part 1540 are frames for pillars, respectively. The first frame passage part, the second frame passage part, the third frame passage part, and the fourth frame passage part open to the other side of the bending of the sieve 900 are connected to each other, and the first frame passage part and the second frame passage part are opened. At one side of the frame passage part, the third frame passage part, and the fourth frame passage part, curved surfaces connected to each other and having a predetermined curvature are respectively provided.

The frame body 900 for the pillar has the first frame passage part, the second frame passage part, the third frame passage part, and the fourth frame passage part in a state where one end side is bitten and fixed by the first frame fixing jig part 1100. Through it, the other end side is bitten by the second frame fixing jig part 1200, and both end sides are respectively fixed.

The second frame fixing jig part 1200 bites and fixes the other end of the frame body 900 for pillars, one end of which is bitten by the first frame fixing jig part 1100, and rotates the frame by the rotation part 1400 The frame body 900 for pillars is rotated in the axial direction, or the other end side of the frame body 900 for pillars is bent on a plane by being rotated at a predetermined radius on a plane by the rotation unit 1300 for frame bending, or the frame body 900 for pillars is bent on a plane, or It can be twisted to the center and molded.

In addition, the second frame fixing jig part 1200 is moved up and down together with the rotating part 1400 for twisting the frame by the elevating part 1600 for bending the frame, thereby bending the frame body 900 for pillars in the up and down directions. can

In addition, the second frame fixing jig part 1200 includes a jig linear moving part 1700 that moves the elevating part 1600 for frame bending forward and backward, and tensions the frame body 900 for pillars, and in a state where the frame body 900 is pulled taut. A bending process may be performed.

The second frame fixing jig part 1200 includes the jig linear moving part 1700 that moves the elevating part 1600 for frame bending forward and backward, and the frame body 900 for pillars is moved according to the length of the frame body 900 for pillars. ) The position of biting and fixing the other end side can be adjusted.

The second frame fixing jig part 1200 is moved forward and backward by the jig linear moving part 1700, and the frame for pillars 900 is cut into various lengths by the frame cutting part 800 according to the length of the frame body 900 for pillars. The other end of the sieve 900 may be bitten and fixed.

The rotating part 1300 for bending the frame is a jig rotating support 1320 rotatably hinged to one end side of the jig base support 1310, the jig base support 1310, and a jig rotating the jig rotation support 1320. A rotating part 1330 is included.

In addition, the rotation unit 1300 for bending the frame further includes an arc-shaped guide rail unit 1340 having an arc shape to guide rotation of the jig rotation support unit 1320, and the jig rotation support unit 1320 is It includes a driving wheel 1321 that rolls along the arcuate guide rail part 1340 by operation.

The jig rotation support 1320 rotates smoothly with a predetermined radius while the driving wheel 1321 rolls along the arcuate guide rail 1340 by the operation of the jig rotation unit 1330 .

The jig rotating part 1330 has one end side rotatably connected to the jig base support 1310, the other end side rotatably connected to the jig rotation support 1320, and pushing or pulling the jig rotation support 1320. It includes a linear moving unit for rotation, and an example of the linear moving unit for rotation is a hydraulic cylinder.

Although not shown, the jig rotation unit 1330 includes a rotation motor for rotating the rotation shaft of the jig rotation support body 1320, and further includes a reduction unit for transmitting the rotation force of the rotation motor to the rotation shaft of the jig rotation support body 1320.

The deceleration unit may be variously modified and implemented using a known rotational force transmission structure such as a belt structure and a gear structure, so a detailed description thereof will be omitted.

Although the jig rotation unit 1330 is not shown, it should be noted that it may be variously modified and implemented using a known rotation structure capable of rotating the jig rotation support 1320.

The jig linear movement unit 1700 is located on the jig rotation support 1320 and moves the elevating and descending unit 1600 for bending the frame forward and backward.

The rotating part 1400 for twisting the frame is equipped with the second frame fixing jig part 1200 rotatably mounted and mounted on the elevating part 1600 for bending the frame so as to move up and down by the elevating part 1600 for bending the frame. .

The elevating unit 1600 for bending the frame is an example of a linear actuator of the ball screw type, and in addition, a rack gear and a pinion gear meshed with the rack gear and rotated by the motor include a rack and pinion that converts the rotational force of the motor into linear movement A more detailed description of the structure, which can be variously modified and implemented using a known lifting and lowering device such as a hydraulic cylinder, will be omitted.

In addition, the jig linear moving unit 1700 is an example of a hydraulic cylinder, and in addition, a ball screw type linear actuator, a rack gear and a pinion gear meshed with the rack gear and rotated by the motor are included, so that the rotational force of the motor is linearly moved. As it can be variously modified and implemented using a known linear moving device such as a converting rack and pinion structure, a more detailed description will be omitted.

That is, the rotation unit 1400 for twisting the frame rotates the second frame fixing jig unit 1200 around the axial direction of the frame body 900 for pillars to twist the frame body 900 for pillars in the axial direction, The elevating unit 1600 for bending the frame raises and lowers the rotating unit 1400 for twisting the frame to elevate and lower the second frame fixing jig unit 1200 together, and the linear jig moving unit 1700 moves the elevating unit 1600 for bending the frame. The rotation unit 1400 for twisting the frame and the rotation unit 1200 for fixing the second frame are linearly moved together, and the jig rotation unit 1330 moves the jig linear movement unit 1700, that is, the jig rotation support 1320 on a plane. By rotating around the axis erected on the frame, the elevating unit 1600 for bending the frame, the rotation unit 1400 for twisting the frame, and the second frame fixing jig unit 1200 are rotated together around the axis erected on the plane.

On the other hand, the first curve guide block portion 1510 includes the first upper block member 1511, the first lower block member 1512, and the first lower block member 1512 between which the first frame passing portion is located. , and includes a first block elevating and descending part 1513 for fixing the pillar frame body 900 between the first upper block member 1511 and the first lower block member 1512 by moving it downward.

In addition, the second curve guide block portion 1520 includes the second upper block member 1521, the second lower block member 1522, and the second lower block member 1522 between which the second frame passing portion is located. , and includes a second block elevating and descending part 1523 for fixing the frame body 900 for pillars between the second upper block member 1521 and the second lower block member 1522 by moving downward.

In addition, the third curve guide block portion 1530 includes the third upper block member 1531, the third lower block member 1532, and the third lower block member 1532 in which the third frame passing portion is located therebetween. , and includes a third block elevating and descending part 1533 for fixing the frame body 900 for pillars between the third upper block member 1531 and the third lower block member 1532 by moving downward.

In addition, the fourth curve guide block portion 1540 includes the fourth upper block member 1541, the fourth lower block member 1542, and the fourth lower block member 1542 between which the fourth frame passing portion is located. , It includes a fourth block elevating and descending part 1543 that moves downward and bites and fixes the frame body 900 for pillars between the fourth upper block member 1541 and the fourth lower block member 1542.

The lower surface of the first upper block member 1511, the lower surface of the second upper block member 1521, the lower surface of the third upper block member 1531 and the lower surface of the fourth upper block member 1541 are connected to each other When the second frame fixing jig part 1200 is raised and lowered by the elevating and descending part 1600 for frame bending by forming one curved surface having a predetermined curvature, the upper side bending of the frame body 900 for pillars is guided through the lower surface. Thus, the frame body 900 for a pillar can be stably bent toward the upper side with a preset curvature.

The first block guide for curve 1510, the second block guide for curve 1520, the third block guide for curve 1530, and the fourth block guide for curve 1540 are each a first lower block member. (1512), the second lower block member 1522, the third lower block member 1532, and the fourth lower block member 1542 are sequentially raised and lowered to sequentially bite and fix the pillar frame body 900.

That is, the jig rotation unit 1330 bends the frame body 900 for pillars with a predetermined curvature while rotating the second frame fixing jig unit 1200 on a plane at a predetermined radius, and once only the first frame fixing unit is used for the pillars. In a state in which the frame body 900 is held and fixed, the second frame fixing jig part 1200 is primarily bent by rotating only a part of the preset curvature.

And, in a state where the first block elevating unit 1513 is operated and the pillar frame body 900 is held and fixed by the first curve guiding block unit 1510, that is, the jig rotating unit 1330 moves only a part of the preset curvature. Rotate it further and bend it in 2nd order.

In addition, in a state in which the frame body 900 for pillars is held and fixed by the second curve guide block 1520 by operating the second block elevating unit 1523, that is, the jig rotating unit 1330 moves only a part of the preset curvature. Rotate it further and bend it 3 times.

In addition, in a state where the third block elevating and descending unit 1533 is operated and the pillar frame 900 is held and fixed by the third curve guide block unit 1530, that is, the jig rotating unit 1330 moves only a part of the predetermined curvature. Rotate it further and bend it in 4th order.

And, in a state where the pillar frame 900 is held and fixed by the fourth curve guide block 1540 by operating the fourth block elevating and descending unit 1543, that is, the jig rotation unit 1330 operates only as much as the rest of the predetermined curvature. It is further rotated and bent five times so that the frame body 900 for a pillar is finally bent to a preset radius on a plane.

The jig rotation unit 1330 includes a first curve guide block unit 1510, a second curve guide block unit 1520, a third curve guide block unit 1530, and a fourth curve guide block unit 1540, that is, , Holding the pillar frame 900 sequentially from one end side to the other end side with a plurality of curve guide block parts 1510, 1520, 1530, 1540, and rotating the jig rotating body step by step with the jig rotation part 1330 so that the frame body 900 for a pillar can be bent accurately and stably with a predetermined radius by finally bending the frame body 900 for a pillar to a predetermined radius.

In addition, when the jig rotation unit 1330 gradually bends the frame body 900 for pillars in multiple stages, the frame body 900 for pillars is lifted to the upper side with the elevating unit 1600 for frame bending between the bending steps, and the first The upper block member 1511, the second upper block member 1521, the third upper block member 1531, and the fourth upper block member 1541 are sequentially bent along the lower surfaces.

That is, after the frame bending rotation unit 1300 first bends the pillar frame body 900 and then operates the frame bending elevating unit 1600 before catching it with the first curve guide block unit 1510, the pillar frame body ( 900) is bent along the lower surface of the first upper block member 1511, and then the frame body 900 for pillars is held and fixed with the first curved guide block part 1510.

In addition, the first curve guide block 1510 holds and fixes the frame body 900 for pillars, and the rotation unit 1300 for frame bending secondarily bends the frame body 900 for pillars, and then guides the second curve. Before holding it with the block part 1520, the elevating part 1600 for frame bending is operated so that the frame body 900 for pillars is bent along the lower surface of the second upper block member 1521, and then the block part for guiding the second curve Hold the frame body 900 for the pillar with (1520) and fix it.

Then, the second curve guide block 1520 holds and fixes the frame body 900 for pillars, and after the rotation unit 1300 for frame bending bends the frame body 900 for pillars three times, the third curve guide Before holding it with the block part 1530, the elevating part 1600 for frame bending is operated so that the frame body 900 for pillars is bent along the lower surface of the third upper block member 1531, and then the block part for guiding the third curve Hold the frame body 900 for the pillar with (1530) and fix it.

Then, the third curve guide block 1530 holds and fixes the frame body 900 for pillars, and after the rotation unit 1300 for frame bending bends the frame body 900 for pillars tertiarily, it is used for guiding the fourth curve. Before holding it with the block part 1540, the elevating part 1600 for frame bending is operated so that the pillar frame body 900 is bent along the lower surface of the fourth upper block member 1541, and then the block part for guiding the fourth curve By holding and fixing the frame body 900 for pillars with (1540), the rotation unit 1300 for frame bending bends the frame body 900 for pillars in a fourth order.

An embodiment of the three-dimensional bending machine 1000 for manufacturing a pillar is a state in which the second frame fixing jig part 1200 is raised to a pre-designed maximum height by the operation of the elevating/descending unit 1600 for frame bending, and the upper side has a pre-designed curvature. An upper bending fixing jig part 1800 for fixing the position by hanging the frame body 900 for the bent pillar is further included.

The upper bending fixing jig part 1800 is the upper side of the fourth curve guide block part 1540, that is, the plurality of curve guide block parts 1510, 1520, 1530, 1540, which is located at the end of the block part for curve guidance. It is rotatably positioned on the upper side and includes a ring member 1810 for fixing the frame by hooking and fixing the frame body 900 for a pillar, and a ring rotation unit 1820 for rotating the ring member 1810 for fixing the frame.

The ring member 1810 for fixing the frame is provided with a ring part for fixing by hanging the frame body 900 for pillars on the lower end side, and the ring part is variously deformed into various ring shapes for fixing by hanging the frame body 900 for pillars. Where possible, more detailed descriptions are omitted.

The ring rotation unit 1820 is connected to the frame fixing ring member 1810 at an upper side than the rotation axis of the frame fixing ring member 1810, and pushes or pulls the upper end side of the frame fixing ring member 1810 to fix the frame fixing ring. As an example, it is a linear moving unit for rotating a ring that rotates the member 1810 around a rotational axis.

An example of the linear moving unit for rotating the ring is a hydraulic cylinder, and in addition, a rack that converts the rotational force of the motor into linear movement, including a ball screw type linear actuator, a rack gear and a pinion gear engaged with the rack gear and rotated by the motor As it can be variously modified and implemented using a known linear moving device such as a pinion structure, a more detailed description will be omitted.

The three-dimensional bending machine 1000 for manufacturing pillars sequentially holds the frame body 900 for pillars with a plurality of block parts 1510, 1520, 1530, and 1540 for guiding curves, and the frame body for pillars 1300 rotates for bending the frame. (900) is bent in stages on a plane, and before or after the bending step with the frame bending rotation unit 1300, the pillar frame body 900 is bent upward in stages with the frame bending elevating unit 1600, and the frame bending rotation unit Before or after the bending step (1300), the rotation unit 1400 for twisting the frame is selectively operated according to the pre-designed shape of the pillar to twist the frame body for the pillar in the axial direction.

On the other hand, in one embodiment of the method for manufacturing a pillar for a vehicle according to the present invention, while continuously supplying the plate 10 for manufacturing a pillar wound in a coil form to the roll forming apparatus, the first surface portions 11 that are not parallel to each other through the roll forming apparatus A method for manufacturing a pillar of a vehicle including a fourth surface portion 14 and manufacturing a pillar having a quadrangular shape.

One embodiment of the method for manufacturing a pillar for a vehicle according to the present invention gradually bends portions at both end sides of the plate 10 for manufacturing the pillar, so that one end side and the other end side of the flat first surface portion 11 have second surface portions 12), the first roll forming step of forming the first partial surface portion 12a and the second partial surface portion 12b, which becomes the remaining portion of the second surface portion 12, and the other end of the first surface portion 11. The second roll forming step of gradually bending the side to form the third surface portion 13, and bending the other end of the first surface portion 11 to form a fourth surface portion ( 14) and the third roll forming step of forming the second face portion 12 by making the end of the first partial face portion 12a and the end of the second partial face portion 12b come into contact with each other, a frame body for a falsely molded pillar A first shape correcting step of correcting the shape of (900), a welding step of welding the end of the first partial face portion 12a and the end of the second partial face portion 12b, which are bonded to each other after the first shape correcting step, the welding step A second shape correction step of correcting the shape of the frame body 900 for a pillar welded by the method, a frame cutting step of cutting the frame body 900 for a pillar corrected by the second shape correction step to a predetermined length, and a frame A bending step of forming a pillar having a predetermined shape by bending and twisting the frame body 900 for a pillar cut in the cutting step is included.

The first roll forming step is a first partial surface forming process of forming the first partial surface portion 12a and the second partial surface portion 12b to stand vertically, forming the vertically erected first partial surface portion 12a at an acute angle, , a second partial surface forming process of forming the vertically erected second partial surface portion 12b at an obtuse angle.

In addition, in the third roll forming step, the flat first surface portion 11 is bent into a V shape to form the first surface portion 11 and the fourth surface portion 14 separately, and the first partial surface portion 12a and the second surface portion 12a are formed. The end of the partial face portion 12b is brought into contact to form the second face portion 12

In the first shape correction step, the first surface portion 11 is closely supported by the first straightening side roll member 650 and the second surface portion 12 is closely supported by the first straightening upper roll member 670. And, the shape of the frame body 900 for pillars is corrected by supporting the third and fourth face parts 13 and 14 in close contact with the second straightening side roll member 660.

In the welding step, the ends of the first partial surface portion 12a and the second partial surface portion 12b are in contact with each other using a welding machine in a state where the shape of the frame body 900 for pillars is maintained by the roll forming end 410 for welding support. Weld and fix the ends of the

In the second calibration step, the first side roll member 710 for the second calibration, the upper roll member 740 for the second calibration, the second side roll member 730 for the second calibration, and the lower roll member for the second calibration ( 720) is brought into close contact with the first surface portion 11, the second surface portion 12, the third surface portion 13, and the fourth surface portion 14, respectively, to form the first surface portion 11, the second surface portion 12, and the third surface portion 11. While pressing the face portion 13 and the fourth face portion 14, the welded pillar frame body 900 is finally straightened by the welding portion 400.

The bending step is a frame tensioning process in which both ends of the frame body 900 for pillars are pulled tight by the first frame fixing jig part 1100 and the second frame fixing jig part 1200, and the second frame after the frame tensioning process. Frame transverse bending process of bending the frame body 900 for pillars in the transverse direction on a plane by rotating the fixing jig part 1200 at a predetermined radius, and the second frame fixing jig part 1200 is the frame body 900 for pillars It includes a frame twisting process of rotating the length of the longitudinal direction in the axial direction.

In addition, the bending step may further include a bending process in the longitudinal direction of the frame in which the frame body 900 for a pillar is lifted upward and bent.

In the frame transverse bending process, a plurality of curve guide block parts 1510, 1520, through which the pillar frame body 900 passes from the first frame fixing jig part 1100 to the second frame fixing jig part 1200 on a plane 1530 and 1540) are sequentially arranged along a predetermined curvature, and the plurality of curve guide block parts 1510, 1520, 1530, and 1540 sequentially hold the pillar frame body 900 from one end side to the other end side , The frame body 900 for pillars is divided into a plurality of stages and partially bent in the transverse direction so that the frame body 900 for pillars is finally bent to a predetermined radius.

In addition, in the longitudinal frame bending process, when the frame body 900 for pillars is divided into a plurality of steps in the frame bending process in the transverse direction and is partially bent in the transverse direction, the frame body 900 for pillars is bent between each step. It is lifted in a plurality of steps one by one to the upper side and bent sequentially.

In addition, the frame twisting process is to twist the frame body for pillars in the axial direction before and after the plurality of steps of the frame transverse bending process or before and after the plurality of steps of the frame longitudinal bending process to form a predetermined pillar shape. do.

The present invention simplifies the manufacturing process, reduces manufacturing cost, and greatly improves productivity by manufacturing a pillar for an automobile having a rectangular closed cross-section through a single roll forming process.

The present invention minimizes the defect rate and greatly improves manufacturing efficiency by precisely manufacturing a pillar for an automobile having a square-shaped closed cross section in a pre-designed shape through two shape correction operations before and after welding.

It is to be noted that the present invention is not limited to the above-described embodiments, but can be variously modified and implemented without departing from the gist of the present invention, which is included in the configuration of the present invention.

10: plate for manufacturing pillar 11: first surface
12: second face portion 12a: first portion face portion
12b: second part face 13: third face
14: 4th face
100: first roll forming part 110: first forming end
111: lower forming roll member for partial surface 111a: first partial surface forming projection
111b: second partial surface molding protrusion 111c: plate support protrusion
112: upper forming roll member for partial surface 112a: third partial surface forming projection
112b: flat support projection 120: second molding end
121: second forming lower roll member 122: side roll member for acute angle
123: side roll member for obtuse angle 124: first inner support roll member
125: second inner support roll member 130: third molding end
131: third forming lower roll member 131a: first bending portion support
131b: first projection for correction 132: third forming upper roll member
132a: first plate support 132b: first partial insert
200: 2nd roll forming unit 210: 4th forming stage
211: fourth forming lower roll member 211a: second bending portion support
212: fourth forming upper roll member 212a: second plate support
212b: Partial second insertion part
212c: protrusion for fixing the second partial surface
220: 5th forming stage 221: 5th forming lower roll member
222: side roll member for supporting the first partial surface
223: side roll member for supporting the second partial surface
223a: V groove part for surface support 224: bending part forming roll member
300: 3rd roll forming unit 310: 6th forming stage
311: 6th forming lower roll member 311a: 1st V-shaped forming groove
311b: third bending portion support portion 311c: third surface support portion
312: sixth forming upper roll member 312a: third plate support
312b: third partial insertion portion 312c: fourth partial insertion portion
320: 7th forming stage 321: 7th forming lower roll member
321a: 2nd V-shaped forming groove 322: 7th forming upper roll member
322a: partial surface fifth insertion part 322b: partial surface sixth insertion part
400: welding part 410: roll forming end for welding support
411: side support roll member for first welding
412: side support roll member for second welding 413: upper roll member for welding
413a: wire insertion groove
500: coil mounting part
600: first shape correction unit 610: first side roll member for correction
620: first lower roll member for correction 621: bending support
630: second side roll member for calibration 640: first upper roll member for calibration
650: side roll member for first calibration 660: side roll member for second calibration
661: V-groove for calibration 670: upper roll member for first calibration
700: second shape correction unit 710: first side roll member for second correction
720: lower roll member for second calibration 730: second side roll member for second calibration
740: upper roll member for second calibration
800: frame cutting part
900: frame body for pillars
1000: 3D bending machine for manufacturing pillars 1100: 1st frame fixing jig part
1110: first jig supporting member 1120: first jig fixing member
1130: first jig elevating part 1200: second frame fixing jig part
1210: second jig supporting member 1220: second jig fixing member
1230: 2nd jig elevating unit 1300: rotating unit for frame bending
1310: base support for jig 1320: rotation support for jig
1321: driving wheel 1330: jig rotating part
1340: Arc-shaped guide rail part 1400: Rotating part for twisting the frame
1500: frame curve guide part 1510: first curve guide block part
1511: first upper block member 1512: first lower block member
1513: first block lifting part 1520: second curve guide block part
1521: second upper block member 1522: second lower block member
1523: 2nd block lifting part 1530: 3rd curve guide block part
1531: third upper block member 1532: third lower block member
1533: 3rd block lifting part 1540: 4th curve guide block part
1541: 4th upper block member 1542: 4th lower block member
1543: 4th block elevating unit 1600: elevating unit for frame bending
1700: jig linear moving part 1800: upper bending fixed jig part
1810: ring member for fixing the frame 1820: ring rotating part

Claims (16)

A roll forming device for manufacturing a pillar of an automobile that manufactures a pillar in a quadrangular shape including first to fourth surface parts that are not parallel to each other,
Partial portions on both end sides of the plate for manufacturing pillars are gradually bent, and a first partial face portion serving as a part of the second face portion and a second partial face portion serving as the remaining portion of the second face portion are respectively placed at one end side and the other end side of the flat first face portion. A first roll forming unit to form;
a second roll forming unit forming a third surface portion by gradually bending the other end of the first surface portion;
The second surface portion is formed by bending the other end of the first surface portion to form a fourth surface portion between the first surface portion and the third surface portion, and bringing an end portion of the first partial surface portion and an end portion of the second partial surface portion into contact with each other. A third roll forming unit to form; and
A roll forming device for manufacturing a pillar of a vehicle, characterized in that it includes a welding portion for welding an end of the first partial face portion and an end portion of the second partial face portion that are in contact with each other.
The method of claim 1,
a first shape correcting unit positioned between the third roll forming unit and the welding unit to correct the shape of the pillar frame body temporarily formed by the third roll forming unit; and
The roll forming device for manufacturing pillars of automobiles further comprising a second shape correcting unit for correcting the shape of the frame body for pillars welded by the welding unit.
The method of claim 2,
a frame cutting unit which cuts the frame body for a pillar corrected by the second shape correcting unit into a predetermined length;
The roll forming device for manufacturing pillars for automobiles, characterized in that it further comprises a three-dimensional bending machine for forming pillars for automobiles in a pre-designed shape by twisting and bending the cut frame body for pillars.
The method of claim 1,
The first roll forming unit,
a plurality of first molding ends forming the first partial face and the second partial face to stand vertically;
a second shaping end portion for forming the vertically erected first portion face portion at an acute angle and the vertically erect second portion face portion formed at an obtuse angle; and
and a third forming end portion for forming the first partial surface portion formed at an acute angle and the second partial surface portion formed at an obtuse angle at a predetermined angle.
The method of claim 4,
The first shaping end includes a lower shaping roll member for partial surfaces and an upper shaping roll member for partial surfaces, respectively, and gradually bends both end sides of a flat plate-shaped plate for manufacturing a pillar, part by part, to form the first partial surface and the second partial surface. formed vertically,
The second molding end,
a second forming lower roll member on which the first surface portion is raised;
It is rotatably positioned on one side of the second molded lower roll member, has a reverse cone shape with a diameter gradually decreasing from top to bottom, and supports the outer surface of the first partial surface portion to incline the first partial surface portion inwardly. A side roll member for an acute angle to be lifted;
It is located on the other side of the second molded lower roll member, has a positive cone shape whose diameter gradually decreases from the bottom to the top, and supports the outer surface of the second portion surface portion for an obtuse angle to incline the second portion surface portion outward. side roll member;
a first inner backup roll member whose rotational shaft is inclined at an upper side of the second forming lower roll member and whose inner surface supports an inner surface of the first partial surface portion; and
A second inner backup roll member having an inner surface supporting an inner surface of the second partial surface portion, the rotational axis inclined at an upper side of the second forming lower roll member,
The third molding end,
a third forming lower roll member on which the first surface portion is raised; and
And a third molded upper roll member positioned so that the first plate support portion in close contact with the upper surface of the first surface portion protrudes toward the lower side,
The third molded lower roll member has a first bending portion support portion protruding on one side to support the bent portion of the first portion surface portion toward the inner surface, and an inclined surface supporting the outer surface portion of the second portion surface portion on the other side. The provided first protrusion for correcting the partial surface is positioned so as to protrude,
The first plate support portion has a lower surface formed in a plane, a first insertion portion is located on one side of the partial surface into which the first partial surface portion is inserted, and an inclined surface supporting the inner surface of the second partial surface portion on the other side. ,
For manufacturing a pillar for a vehicle, characterized in that a first supporting inclined surface supporting an outer surface of the first partial surface portion and a second supporting inclined surface supporting an end portion of the first partial surface portion are positioned inside the first partial surface insertion portion. roll forming device.
The method of claim 5,
The first inner support roll member has an inclined inner surface in a state in which a first round support part formed round the end side supports the inner surface of the first partial surface bent portion, which is the boundary between the first partial surface portion and the first surface portion, Forming the first partial face portion into an acute angle between the side roll member for the acute angle by closely supporting the inner surface of the first portion face portion,
The second inner support roll member has a second round support portion formed round the end side supporting the inner surface of the second partial surface bending portion, which is the boundary between the second partial surface portion and the first surface portion, and the inclined inner surface is the second support roll member. A roll forming device for manufacturing a pillar of an automobile, characterized in that the inner surface of the two-part surface part is closely supported and formed into an obtuse angle between the side roll member for the obtuse angle.
The method of claim 4,
The second roll forming unit forms a third surface portion between the first surface portion and the second partial surface portion while gradually bending the other end side of the first surface portion through a plurality of fourth forming stages, and forming a fifth forming stage. A roll forming device for manufacturing a pillar of a vehicle, characterized in that for correcting the shape of the third surface bending portion, which is a boundary portion of the first surface portion and the third surface portion, through the
The method of claim 7,
The fourth molding stage,
a fourth forming lower roll member on which the first surface portion is raised; and
And a fourth molded upper roll member positioned so that the second plate support portion in close contact with the upper surface of the first surface portion protrudes toward the lower side,
The fourth molded lower roll member has a second bent support portion protruding to support the inner surface of the bent portion of the first portion surface portion on one side and a lower surface support portion supporting the lower surface of the third surface portion on the other side. A first slope is formed,
The second plate support part has a second insertion part positioned on one side of the partial surface into which the first partial surface part is inserted, and a first inclined surface for supporting the upper surface of the third surface part is formed on the other side,
A third supporting inclined surface supporting an outer surface of the first partial surface portion and a fourth supporting inclined surface supporting an end portion of the first partial surface portion are located inside the second partial surface insertion portion,
On the other side of the fourth molded upper roll member, a second part is positioned to protrude toward the lower side of the second plate support part, overlaps with the fourth molded lower roll member, and supports the outer surface of the second partial surface part on the inner surface. A protrusion for fixing a second partial surface on which an inclined surface for fixing a partial surface is located is provided,
On the other side of the fourth molded lower roll member, the protrusion for fixing the second partial surface overlaps and the inclined surface for supporting the protrusion for supporting the protrusion for fixing the second partial surface facing the inclined surface for fixing the second partial surface is positioned Roll forming device for manufacturing a pillar of a vehicle, characterized in that.
The method of claim 7,
The fifth molding stage,
a fifth forming lower roll member on which the first surface portion is raised;
A side roll member for supporting the first partial surface that is rotatably positioned on one side of the fifth molded lower roll member, has a reverse cone shape in which the diameter gradually decreases from top to bottom, and supports the outer surface of the first partial surface portion. ;
It is rotatably located on the other side of the fifth molded lower roll member, and has two inclined surfaces in a V shape on an outer circumferential surface, and a V groove for supporting the third surface and the second partial surface, respectively, is located. Side roll member for supporting the two-part surface; and
The rotation axis is inclined at the upper side of the fifth molded lower roll member, and the round portion for pressing formed round at the end side presses the inner surface of the third surface bending portion, which is the boundary between the first surface portion and the third surface portion. A roll forming device for manufacturing a pillar of an automobile, comprising a forming roll member.
The method of claim 1,
The welding part includes a plurality of welding supporting roll forming ends that maintain the shape of the frame body for pillars during welding and a welding machine that welds a boundary between the first partial surface portion and the second partial surface portion during transfer,
The roll forming end for welding support,
a first welding side support roll member formed in a cone shape having an inclined surface supporting the first surface portion and rotatably positioned about a vertical axis;
A second side support roll member for welding having two inclined surfaces in a V shape on an outer circumferential surface and having a V groove for supporting the fourth and third surfaces, respectively; and
And an upper roll member for welding that presses the upper surface of the second surface portion where the first partial surface portion and the second partial surface portion abut,
A roll forming device for manufacturing a pillar for automobiles, characterized in that the outer circumferential surface of the upper roll member for welding is provided with a wire insertion groove for supplying a wire for welding to a boundary between the first portion and the second portion.
The method of claim 2,
The first shape correction unit,
a first side roll member for correction formed in a cone shape having an inclined surface supporting the first surface portion and rotatably positioned about a vertical axis;
a first lower roll member for straightening positioned at a lower side of the fourth surface portion, having an inclined surface on which the fourth surface portion is seated, and rotatably positioned about a horizontal axis;
a second side roll member for straightening which has an inclined surface on one side supporting the third surface and is rotatably positioned about a vertical axis;
And a first upper roll member for correction that is rotatably positioned about a horizontal axis and presses an upper surface of the second surface portion where the first partial surface portion and the second partial surface portion abut,
In the first lower roll member for correction, a round support supporting a bent portion between the first and fourth surfaces is located on one side of the inclined surface,
One side and the other side of the first upper roll member for calibration are positioned to partially overlap the first side roll member for calibration and the second side roll member for calibration, respectively.
The method of claim 2,
The first shape correcting unit may include a first correcting side roll member formed in a cone shape having an inclined surface supporting the first surface unit and rotatably positioned about a vertical axis;
a second straightening side roll member having two inclined surfaces in a V-shape on an outer circumferential surface and having a V-groove for straightening that supports the fourth and third surface parts, respectively;
And a first straightening upper roll member for pressing an upper surface of the second surface portion in contact with the first partial surface portion and the second partial surface portion,
The first straightening upper roll member is a roll forming device for manufacturing a pillar for automobiles, characterized in that one side and the other side are positioned to partially overlap the first straightening side roll member and the second straightening side roll member, respectively.
The method of claim 2,
The second shape correction unit,
a first side roll member for second correction having an inclined surface supporting the first surface portion and rotatably positioned about a vertical axis;
a second lower roll member for correction positioned on the lower side of the fourth face portion from the other side of the second first side roll member for correction, having an inclined surface on which the fourth face portion is seated, and rotatably positioned about a horizontal axis;
a second side roll member for second correction positioned to face the first side roll member for second correction, having an inclined surface on one side supporting the third surface portion, and rotatably positioned about a vertical axis; and
A roll forming device for manufacturing a pillar for automobiles, characterized in that it includes a second upper roll member for calibration positioned on the upper side of the second lower roll member for calibration, rotated about a horizontal axis and supporting the upper surface of the second surface portion. .
It is a method of manufacturing a pillar for an automobile in which a pillar for manufacturing a pillar wound in a coil form is continuously supplied to a roll forming apparatus while manufacturing a quadrangular pillar including first to fourth surfaces that are not parallel to each other with the roll forming apparatus,
Partial portions at both ends of the plate for manufacturing the pillars are gradually bent, and the first part becomes a part of the second surface at one end and the other end of the flat first surface, respectively, and the second part becomes the remaining part of the second surface. A first roll forming step of forming a face portion;
a second roll forming step of forming a third surface portion by gradually bending the other end of the first surface portion;
The other end of the first face portion is bent to form a fourth face portion between the first face portion and the third face portion, and an end portion of the first portion face portion and an end portion of the second portion face portion are brought into contact with each other to form a second face portion. Forming a third roll forming step;
A first shape correction step of correcting the shape of the frame body for a falsely molded pillar;
a welding step of welding an end portion of the first portion face portion and an end portion of the second portion face portion which are adhered to each other after the first shape correcting step;
a second shape correcting step of correcting the shape of the frame body for a pillar welded by the welding step;
a frame cutting step of cutting the frame body for a pillar corrected by the second shape correcting step to a predetermined length; and
and a bending step of forming a pillar having a predetermined shape by bending and twisting the frame body for the pillar cut in the frame cutting step.
The method of claim 14,
The first roll forming step,
a first partial surface forming process of forming the first partial surface portion and the second partial surface portion vertically; and
A second partial surface forming process of forming the vertically erected first partial surface portion at an acute angle and forming the vertically erected second partial surface portion at an obtuse angle;
In the third roll forming step, the first surface portion of the flat surface is bent into a V shape to form the first surface portion and the fourth surface portion separately, and the ends of the first partial surface portion and the second partial surface portion are in contact with each other, A method for manufacturing a pillar for a vehicle, characterized in that the second surface portion is formed.
The method of claim 14,
In the first shape correction step, the first surface portion is adhered to and supported by a first correction side roll member, the second surface portion is adhered to and supported by a first correction upper roll member, and a second correction side roll member is used. A method for manufacturing a pillar of a vehicle, characterized in that the shape of the frame body for a pillar is corrected by supporting the third and fourth surfaces in close contact with the furnace.

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