WO2024106703A1

WO2024106703A1 - Bending apparatus

Info

Publication number: WO2024106703A1
Application number: PCT/KR2023/012428
Authority: WO
Inventors: 조찬기; 박건영; 황범진; 김량선; 한태홍
Original assignee: 주식회사 디에스시동탄
Priority date: 2022-11-17
Filing date: 2023-08-22
Publication date: 2024-05-23
Also published as: KR20240072757A

Abstract

A bending apparatus according to an embodiment, which processes a bar having first to fourth surfaces as a bus bar, comprises: a feeding unit which supplies a bar to be formed as a bus bar in an axial direction; and a processing unit which rotates in the circumferential direction of a shaft of the feeding unit, wherein the processing unit comprises a bending module which moves up/down in a direction perpendicular to the shaft of the feeding unit. The bending module comprises: a rotating portion rotating in the circumferential direction of the shaft of the feeding unit; a lift portion which is coupled to the rotating portion, has a shaft formed in a direction perpendicular to the shaft of the feeding unit, and moves up/down in the lengthwise direction of the shaft; a first guide portion which moves up from the inside of one surface of the lift portion adjacent to the bar so as to support the first and third surfaces of the bar; a second guide portion which is provided on one surface of the first guide portion adjacent to the bar and supports the second and fourth surfaces of the bar; and a pressing portion which is provided to be rotatable in the circumferential direction of the shaft of the lift portion on the outer side of one surface of the lift portion, and bends the bar supported by the first guide portion or the second guide portion. The second guide portion is moved in a direction away from the shaft of the lift portion and the first guide portion when moving up, and is moved in a direction close to the shaft of the lift portion and the first guide portion when moving down.

Description

bending device

The Present Disclosure relates to a bending device, and specifically to a bending device for processing a busbar for an electric vehicle battery.

A busbar is connected to electrical devices through bolting, clamping, or welding to allow electricity to pass between electrical devices, and is wrapped with an insulator. And the maximum current that a bus bar can safely transmit is determined by its material composition and cross-sectional size.

In order to process a bar wrapped in an insulator into a bus bar suitable for use (for example, for electric vehicles or internal combustion engine vehicles, etc.), a bending device is required.

Examples of bending devices include Republic of Korea Patent Publication No. 10-2205544 (Busbar bending device with tension support structure) and Korean Patent Publication No. 10-2391340 (Busbar bending device).

The goal is to provide a bending device that can process bars of various widths and thicknesses into bus bars and prevents wrinkles from forming in the insulator surrounding the bars.

The bending device according to the embodiment is a bending device for processing a bar material composed of first to fourth surfaces into a bus bar, including a feeding unit that supplies a bar material to be formed into a bus bar in the axial direction, and a feeding unit that supplies a bar material to be formed into a bus bar in the axial direction, and It includes a rotating processing unit, and the processing unit includes a bending module that goes up and down in a direction perpendicular to the axis of the feeding unit. The bending module includes a rotating part that rotates in the circumferential direction of the axis of the feeding unit, and is coupled to the rotating part, , an axis is formed in a direction perpendicular to the axis of the feeding unit, a lift part that goes up and down in the longitudinal direction of the axis, and a first guide part that moves up and down inside one surface of the lift part adjacent to the bar to support the first and third sides of the bar. , provided on one side of the first guide portion adjacent to the bar, a second guide portion supporting the second and fourth sides of the bar, and rotatable in the circumferential direction of the axis of the lift portion on the outside of one surface of the lift portion, and a first guide portion, It includes a pressure part that bends the bar supported on the guide part or the second guide part, and the second guide part moves in a direction away from the axis of the lift part and the first guide part when going up and down, and moves in a direction away from the axis of the lift part and the first guide when going down. Move in a direction closer to wealth.

The first guide part of the bending device according to the embodiment includes a first block supporting the first side of the bar, and a second block supporting the third side of the bar, and the second guide part includes the first guide part. A first block provided on the top of the first block and supporting the second side of the bar, a second block provided on the top of the second block of the first guide part and supporting the fourth side of the first bar, one end A first link connected to the lower part of the first block of the second guide part and moving inside the first block of the first guide part, one end of which is connected to the lower part of the second block of the second guide part, and the second block of the first guide part A second link that moves internally, a third link that connects the other end of the first link and the other end of the second link, a fourth link that has one end connected to the stop of the third link, and a crank that the other end of the fourth link connects to. may include.

The second guide part of the bending device according to the embodiment includes a fixed block provided on each of the first block of the second guide part and the second block of the second guide part, and each of the fixed blocks is provided on the first block of the second guide part. The block and the second guide portion may have a larger cross-sectional area than the second block.

The first guide portion of the bending device according to the embodiment is positioned in the axial direction of the lift portion such that the first block of the second guide portion is in contact with the second side of the bar and the second block of the second guide portion is in contact with the fourth side of the bar. can be rotated

Each of the first block and the second block of the bending device according to the embodiment may have a cross-section perpendicular to the axis of the lift unit in an elliptical shape.

The processing unit of the bending device according to the embodiment may include a torsion module that supports the bar so that the bar is twisted by rotation of the rotating part.

The torsion module of the bending device according to the embodiment may include a torsion support bar case provided near the front of the feeding unit, and a torsion support bar provided in the torsion support bar case and pulled out in front of the feeding unit to support the bar.

The bending device according to the embodiment can process bars having various widths and thicknesses into bus bars.

The bending device according to the embodiment prevents deformation of the insulator surrounding the bar and can process the bar into a bus bar.

In addition, since the effect of the present invention is naturally exerted by the composition of the described content regardless of whether the inventor is aware of it, the above-described effects are only a few effects according to the described content, and all effects that the inventor knows or exist are not described. It should not be acknowledged as such.

1 is a perspective view of a bending device according to an embodiment.

Figure 2 is a diagram showing the operation of a bending device according to an embodiment of bending a bar in the thickness direction of the bar.

Figure 3 is a diagram showing the operation of a bending device according to an embodiment of bending a bar in the width direction of the bar.

FIG. 4 is a diagram showing the operation of a bending device according to an embodiment performed after the operation shown in FIG. 3.

FIG. 5 is a diagram showing the operation of a bending device according to an embodiment performed after the operation shown in FIG. 4.

Figure 6 is a diagram showing the operation of a bending device twisting a bar according to an embodiment.

Figure 7 is a diagram showing an operation in which a bending device according to an embodiment is transformed into a shape corresponding to the cross section of a bar.

The advantages and features of the present disclosure and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the present disclosure is complete and to those skilled in the art to which the present disclosure pertains. It is provided to fully inform the person of the scope of the invention, and the present disclosure is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Referring to the drawings below, the bending device 1 (hereinafter referred to as 'bending device 1') according to the embodiment will be described in detail.

Figure 1 is a perspective view of the bending device 1, Figure 2 is a diagram showing the operation of the bending device 1 to bend the bar P in the thickness direction of the bar P, and Figure 3 is the bending device 1. This is a diagram showing the operation of bending the provisional bar P in the width direction of the bar P, and FIG. 4 is a diagram showing the operation of the bending device 1 performed after FIG. 3.

Referring to FIG. 1, the bending device 1 includes a feeding unit 10 and a processing unit 20.

The feeding unit 10 supplies the bar material P to be formed into a bus bar in the axial direction. Generally, the busbar is wrapped with an insulator, and the bar material P is processed while being wrapped in an insulator. The peripheral surface of the bar P in the embodiment is composed of first to fourth surfaces, and the first, third, second and fourth surfaces are each oriented in opposite directions. In the embodiment, the first and third sides have a large area and the second and fourth sides have a small area, but the present invention is not limited thereto. The feeding unit 10 in the embodiment is configured such that the first side of the bar P is facing upward and the second side of the bar P is located near the bending module 21 on the right side with respect to FIG. 1. (P) can be supplied.

The processing unit 20 processes the bus bar according to the purpose by performing the operations of bending, twisting, and cutting the bar P supplied from the feeding unit 10. It rotates in the circumferential direction of the axis and includes a bending module 21 and a torsion module 22.

*Referring to Figures 2 and 3, the bending module 21 includes a rotating part 211, a lift part 212, a first guide part 213, a second guide part 214, and a pressing part 215. Includes.

The rotating part 211 is provided at the end of the feeding unit 10 and rotates in the circumferential direction of the axis of the feeding unit 10. Here, the feeding unit 10 preferably has a cylindrical outer peripheral surface, and the rotating part 211 preferably has an inner peripheral surface corresponding to the outer peripheral surface of the feeding unit 10.

The lift unit 212 is coupled to the rotation unit 211 to form an axis in a direction perpendicular to the axis of the feeding unit 10. And the lift unit 212 moves up and down in the longitudinal direction of the aforementioned axis. Accordingly, the lift unit 212 moves toward the side of the bar P supplied from the feeding unit 10 (the second side of the bar P with reference to FIG. 1 ).

In explaining the bending device 1, the bending module 21 is not rotated and the axis of the lift unit 212 is arranged to face the second side of the bar P supplied from the feeding unit 10. is defined as the 'first state', and the bending module 21 is rotated through the rotation unit 211, so that the axis of the lift unit 212 is the third surface of the bar P supplied from the feeding unit 10. The state arranged to face is defined as the 'second state'.

The first guide part 213 rises and falls on the inside of one side of the lift part 212 adjacent to the bar (P), and is connected to the first block 2131 supporting the first side of the bar (P) and the bar (P). It may include a second block 2132 supporting the third side.

The first block 2131 of the first guide portion 213 is raised and lowered to support the first surface of the bar (P).

The second block 2132 of the first guide portion 213 is raised and lowered to support the third surface of the bar (P).

Referring to FIG. 3, the second guide part 214 is provided on one surface of the first guide part 213 adjacent to the bar P, and supports the second and fourth surfaces of the bar P.

The second guide unit 214 may include a first block 2141 and a second block 2142.

The first block 2141 of the second guide part 214 is provided on one surface of the first guide part 213 adjacent to the bar P, and supports the second surface of the bar P. The first block 2141 of the second guide portion 214 preferably has an oval shape so that the first surface of the bar P is bent.

The second block 2142 of the second guide part 214 is provided on one surface of the first guide part 213 adjacent to the bar P, and supports the fourth surface of the bar P. The second block 2142 of the second guide portion 214 preferably has an oval shape so that the third surface of the bar P is bent.

Referring to FIG. 4, the second guide unit 214 may include a fixing block 2148 provided on top of each of the first block 2141 and the second block 2142.

Each of the fixed blocks 2148 has a larger cross-sectional area than the first block 2141 and the second block 2142 of the second guide portion 214.

When the second or fourth side of the bar P is bent by the first block 2141 and the second block 2142 of the second guide part 214 and the pressurizing part 215 to be described later, the bar ( As the first side of P) contacts the lower part of the fixed block 2148, the lower part of the fixed block 2148 presses the edge of the first side of the bar P, causing wrinkles in the insulator surrounding the bar P. This does not occur.

Figure 7 is a diagram showing the operation of the bending device 1 being transformed into a shape corresponding to the cross section of the bar P' of various shapes.

Referring to (a) and (b) of FIG. 7, the second guide portion 214 includes a first link 2143, a second link 2144, a third link 2145, a fourth link 2146, and May include crank 2147.

One end of the first link 2143 is connected to the lower part of the first block 2141 of the second guide part 214, and is moved within the first block 2131 of the first guide part 213.

One end of the second link 2144 is connected to the lower part of the second block 2142 of the second guide part 214, and moves within the second block 2132 of the first guide part 213.

The third link 2145 connects the other end of the first link 2143 and the other end of the second link 2144.

The fourth link 2146 is connected at one end to the break of the third link 2145.

The other end of the fourth link 2146 is connected to the crank 2147.

Looking at the operation of moving the first block 2141 and the second block 2142 of the second guide part 214, when the crank 2147 is rotated by the power device, the other end of the fourth link 2146 is the crank ( 2147). When one end of the fourth link 2146 moves up or down, the third link 2145 moves up or down. When the third link 2145 moves up and down, the first link 2143 and the second link 2144 move in a direction away from the axis of the lift unit 212 and the first guide unit 213, or the lift unit 2145 moves up and down. It moves in a direction closer to the axis of the part 212 and the first guide part 213. As a result, the distance between the first block 2141 and the second block 2142 of the second guide part 214 increases, and the bending device 1 processes the bar P' having various widths and thicknesses into a bus bar. can do.

Referring to FIG. 4 , the pressing unit 215 is provided on the outside of one surface of the lift unit 212 to be rotatable in the circumferential direction of the axis of the lift unit 212. The pressing portion 215 may include a disk 2151, a first protruding rod 2152, and a second protruding rod 2153. The disk 2151 is provided on the outer side of one surface of the lift unit 212, and the first protruding bar 2152 and the second protruding bar 2153 are provided from the disk 2151 toward the longitudinal direction of the axis of the lift unit 212. do. The first protruding bar 2152 bends the bar P supported on the first guide part 213, and the second protruding bar 2153 bends the bar P supported on the second guide part 214.

Figure 6 is a diagram showing the operation of the bending device 1 twisting the bar material P.

Referring to FIG. 6, the torsion module 22 includes a torsion support bar case 221 and a torsion support bar 222.

The torsion support bar case 221 is provided near the front of the feeding unit 10 and may have an axis perpendicular to the axis of the feeding unit 10 and the axis of the lift unit 212.

The torsion support bar 222 is provided in the torsion support bar case 221, is pulled forward to the feeding unit 10 based on the axis of the torsion support bar case 221, and is connected to the first and third surfaces of the bar (P). support.

Referring to FIG. 2, the operation of the bending device 1 to bend the first and third surfaces of the bar P during the operation of forming the bar P into a bus bar will be described in detail.

The processing unit 20 is disposed away from the front of the feeding unit 10 through the lift unit 212 in order to bend the bar P upward by pressing the third side of the bar P. The bending module 21 is in the first state. The pressing unit 215 rotates the disk 2151 so that the first protruding bar 2152 is positioned near the third surface of the bar P. The feeding unit 10 supplies the first side of the bar P to the position where it needs to be bent. The bending module 21 is moved toward the bar P located in front of the feeding unit 10 through the lift unit 212. The first guide unit 213 is raised and lowered from the lift unit 212 in the longitudinal direction of the axis of the lift unit 212, and the first block 2131 of the first guide unit 213 is positioned on the first surface of the bar (P). and the second block 2132 of the first guide portion 213 supports the second surface of the bar (P). Thereafter, the pressing unit 215 is rotated in the circumferential direction of the axis of the lift unit 212, and the first protruding bar 2152 of the pressing unit 215 is in contact with the bar P, and the third protruding bar 2152 of the bar P is in contact with the bar P. Press the surface and bend it upward.

The processing unit 20 is first placed away from the front of the feeding unit 10 through the lift unit 212 in order to bend the bar P downward by pressing the first side of the bar P. . The bending module 21 is in the first state. The pressing unit 215 rotates the disk 2151 so that the first protruding bar 2152 is positioned near the first surface of the bar P. The feeding unit 10 supplies the third side of the bar P to the position where it needs to be bent. The bending module 21 is moved toward the bar P located in front of the feeding unit 10 through the lift unit 212. The first guide unit 213 is raised and lowered from the lift unit 212 in the longitudinal direction of the axis of the lift unit 212, and the first block 2131 of the first guide unit 213 is positioned on the first surface of the bar (P). and the second block 2132 of the first guide portion 213 supports the third side of the bar (P). Thereafter, the pressing unit 215 is rotated in the circumferential direction of the axis of the lift unit 212, and the first protruding bar 2152 of the pressing unit 215 is in contact with the bar P, and the first protruding bar 2152 of the bar P is in contact with the bar P. Press the surface and bend it downward.

FIG. 5 is a diagram showing the operation of the bending device 1 performed after FIG. 4.

Referring to FIGS. 3 to 5, the operation of bending the second or fourth surface of the bar P during the bending device 1 to form the bar P into a bus bar will be described in detail.

The processing unit 20 is arranged away from the front of the feeding unit 10 through the lift unit 212 in order to bend the bar P to the left by pressing the second surface of the bar P. The bending module 21 is in the second state. The pressing unit 215 rotates the disk 2151 so that the second protruding bar 2153 is positioned near the second surface of the bar P. The feeding unit 10 supplies the fourth side of the bar P to the position where it needs to be bent. The bending module 21 is moved toward the bar P located in front of the feeding unit 10 through the lift unit 212. At this time, the first guide part 213 does not lift and lower, and the first block 2141 of the second guide part 214 supports the second surface of the bar (P) and the second block 2141 of the second guide part 214 Block 2142 supports the fourth side of the bar P. Thereafter, the pressing unit 215 is rotated in the circumferential direction of the axis of the lift unit 212, and the second protruding bar 2153 of the pressing unit 215 is in contact with the bar P, and the second protruding bar 2153 of the bar P is in contact with the bar P. Press the surface and bend the bar (P) to the left.

The processing unit 20 is arranged away from the front of the feeding unit 10 through the lift unit 212 in order to bend the bar P to the right by pressing the fourth side of the bar P. The bending module 21 is in the second state. The pressing unit 215 rotates the disk 2151 so that the second protruding bar 2153 is positioned near the fourth surface of the bar P. When the bar material P is supplied from the feeding unit 10, the bending module 21 moves toward the bar material P in front of the feeding unit 10 through the lift unit 212. The first guide part 213 does not move up and down, and the first block 2141 of the second guide part 214 supports the second surface of the bar (P) and the second block of the second guide part 214 ( 2142) supports the fourth side of the bar (P). Thereafter, the pressing unit 215 is rotated in the circumferential direction of the axis of the lift unit 212, and the second protruding bar 2153 of the pressing unit 215 is in contact with the bar P, and the fourth protruding bar 2153 of the bar P is in contact with the bar P. Press the surface and bend it to the right.

The first block 2141 and the second block 2142 of the second guide part 214 are used to support the bent positions of the first and fourth surfaces of the bar P, and the first guide part 213 Can be rotated at a predetermined angle. The direction in which the first guide portion 213 is rotated is opposite to the direction in which the bar P is bent. For example, if the second side of the bar (P) is to be bent, the first protrusion of the second guide portion 214 is used to support the position where the second side of the bar (P) should be bent. ) is held. And, if the fourth side of the bar P is to be bent, the first guide part 213 is such that the second protrusion of the second guide part 214 supports the position where the fourth side of the bar P should be bent. It is met.

Referring to FIG. 6, the operation of the bending device 1 to twist the bar P during the operation of forming the bar P into a bus bar will be described.

First, the bending module 21 is arranged away from the front of the feeding unit 10. Then, the bending module 21 is placed in the second state through the rotating unit 211. For reference, when the bending module 21 is placed in the second state, the torsion module 22 rotates together. In the torsion module 22, a torsion support bar 222 is pulled out from the torsion support bar case 221, and the torsion support bar 222 supports the first and third surfaces of the bar (P). When the bending module 21 is disposed in the first state through the rotating portion 211, the torsion support bar 222 twists the bar P while supporting the bar P.

The processing unit 20 may further include a cutting unit.

The cut portion is disposed near the front of the feeding unit 10 and is disposed to be movable toward the first side of the bar (P).

After the operation of bending or twisting the bar P is completed, the processing unit 20 moves the cutting part toward the bar P and separates the bar P from the feeding unit 10, thereby forming a bending device 1 ) can process the bar material (P) into a bus bar.

In the bus bar processed using the bending device according to the embodiment, wrinkles do not form in the bent portion during the process of bending the bar wrapped with the insulator, so the quality of the bus bar is improved.

Claims

In the bending device for processing a bar consisting of the first to fourth sides into a bus bar,

a feeding unit that supplies bar material to be formed into a bus bar in the axial direction;

It includes a processing unit rotating in the circumferential direction of the axis of the feeding unit,

The processing unit is,

It includes a bending module that rises and falls in a direction perpendicular to the axis of the feeding unit,

The bending module is,

a rotating portion rotating in a circumferential direction of the axis of the feeding unit;

A lift unit is coupled to the rotating unit, has an axis formed in a direction perpendicular to the axis of the feeding unit, and moves up and down in the longitudinal direction of the axis;

A first guide part that moves up and down inside one surface of the lift part adjacent to the bar to support the first and third sides of the bar;

a second guide part provided on one surface of the first guide part adjacent to the bar and supporting the second and fourth surfaces of the bar; and

A pressurizing portion is provided on the outside of one surface of the lift portion to be rotatable in the circumferential direction of the axis of the lift portion and bends the bar supported on the first guide portion or the second guide portion;

The second guide part,

A bending device that moves in a direction away from the axis of the lift unit and the first guide unit when ascending and descending, and moves in a direction closer to the axis of the lift unit and the first guide unit when descending.
According to paragraph 1,

The first guide part,

A first block supporting the first side of the bar; It includes a second block supporting the third side of the bar,

The second guide part,

A first block provided on an upper part of the first block of the first guide part and supporting the second side of the bar;

a second block provided on an upper part of the second block of the first guide part and supporting the fourth side of one bar;

A first link, one end of which is connected to the lower part of the first block of the second guide part, and which moves within the first block of the first guide part;

a second link, one end of which is connected to the lower part of the second block of the second guide unit, and which moves within the second block of the first guide unit;

a third link connecting the other end of the first link and the other end of the second link;

a fourth link, one end of which is connected to the interruption of the third link; and

A bending device including a crank to which the other end of the fourth link is connected.
According to paragraph 2,

The second guide part,

It includes a fixed block provided on an upper portion of each of the first block of the second guide unit and the second block of the second guide unit,

Bending device, wherein each of the fixed blocks has a larger cross-sectional area than the first block of the second guide part and the second block of the second guide part.
According to paragraph 2,

The first guide part,

A bending device in which the lift unit is rotated in the axial direction so that the first block of the second guide unit contacts the second surface of the bar and the second block of the second guide unit contacts the fourth surface of the bar.
According to paragraph 2,

Each of the first block and the second block,

A bending device having a cross-section perpendicular to the axis of the lift unit in an oval shape.
According to paragraph 1,

The processing unit is,

A bending device comprising a torsion module supporting the bar so that the bar is twisted by rotation of the rotating part.
According to clause 6,

The torsion module is,

a torsion support bar case provided near the front of the feeding unit;

A torsion support bar provided in the torsion support bar case and pulled out in front of the feeding unit to support a bar.