KR20140015660A

KR20140015660A - Roll forming device and forming method for side sill of vehicle

Info

Publication number: KR20140015660A
Application number: KR1020120069212A
Authority: KR
Inventors: 이상관; 박동규
Original assignee: 이상관
Priority date: 2012-06-27
Filing date: 2012-06-27
Publication date: 2014-02-07

Abstract

The present invention provides a roll forming device for a side sill of an automotive vehicle which comprises: an uncoiler part for unwinding a coil winded in a roll state; a roll forming part, where multiple forming rolls are horizontally separated and arranged for successively forming the coil supplied from the uncoiler part; a cutting part, which is installed in the rear end of the roll forming part for cutting a coil passing through the final forming roll in uniform length; a press part, which is installed in one side of the cutting part for punching the coil that is cut in the cutting part to form an insertion hole in the coil, and for trimming an outer end upon receiving the punched coil; and a controlling part for controlling the operations of the uncoiler part, the roll forming part, the cutting part, and the press part. According to the roll forming device for the side sill of a vehicle of the present invention, mass production is made possible by a roll forming process that is more streamlined in comparison to a press process. Moreover, the side sill completed by the roll forming process has the advantage of ensuring safety upon receiving shock generated in a vehicle, as the side sill employs a high strength steel that is light weight yet has excellent strength.

Description

Roll forming device and forming method for side sill of vehicle

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll forming apparatus and a molding method for a side seal for an automobile, and more particularly, to a roll forming apparatus and a molding method for a side seal for an automobile, which can be mass-produced by simplifying a manufacturing process.

In general, auto parts are mostly manufactured by a press process, and in particular, door frames, side seals, side impact beams, Cross member and bumper reinforcement are being actively applied to high strength steel sheet to improve safety performance and light weight of automobile.

The high-strength steel sheet is light weight and excellent strength by applying 1.2t high strength steel to 1180MPa, the importance of the light weight technology of the automobile is increased due to the reduction of energy resources, the application of high strength steel is increasing rapidly.

On the other hand, the side sill of the vehicle, the side sill of the vehicle, which is located on the side of the vehicle body, absorbs and transmits the shock generated in the vehicle body, and in particular the safety zone of the driver's seat and the passenger seat from the impact. It is a very important part that is directly connected to safety in case of an accident.

This side seal is actively applied to a high strength steel sheet of 1.2t in 1180MPa for the safety performance and light weight of the automobile.

By the way, the press process for producing the side seals using the high strength steel sheet as described above, the production speed is slow, the process is difficult to reduce and expand, the production cost is high, and a large amount of scrap is generated during production, mass production of small species There are only possible drawbacks.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a roll forming apparatus and a molding method for a side seal for an automobile in which mass production is possible in one operation and productivity is improved.

According to the present invention for achieving the above object, an uncoiler portion (Uncoiler) for releasing the coil wound in a roll state; A roll forming part in which a plurality of forming rolls are spaced apart in a horizontal direction so as to sequentially form coils supplied from the uncoiler part; A cutting part (Cutting) installed at the rear end of the roll forming part to cut the coil passing through the last forming roll to a predetermined length; A punch unit installed at one side of the cutting unit to punch an insertion hole to be formed in the coil cut at the cutting unit, and trim the outer end by receiving the punched coil; And a control unit for controlling driving of the uncoiler unit, the roll forming unit, the cutting unit, and the press unit.

In addition, the forming roll may include an upper and lower rolls arranged up and down to press-form the coil by rotation, and a support frame for rotatably fixing both sides of the upper and lower rolls, respectively.

In addition, the coil may be characterized in that the high-strength steel (Steel) material.

The present invention comprises the steps of supplying a coil; Rollforming the coil supplied; Cutting the coil after the roll forming step; And punching to form an insertion hole in the cut coil, and pressing to trim an outer end thereof.

Wherein the step of forming the roll, a multi-stage forming roll roll forming so that the center portion of the coil to form a projection projecting in the downward direction, and a multi-stage forming roll roll forming so that the center portion including the projection is formed projecting; , The left end of the projection, the multi-stage forming roll roll forming so as to be bent to the left side in the transverse direction and the right end of the protruding coil, the roll forming multi-stage to be bent to the right in the transverse direction with the right end It may include a forming roll of.

In this case, the pressing step of forming the insertion hole and the outer end by trimming may be performed by two presses, respectively.

In addition, the roll forming step may be performed through a step of 20 to 25 by a plurality of forming rolls sequentially spaced apart along the horizontal direction.

In the roll forming molding method of the side seal for a vehicle according to the present invention, the roll forming process is simplified compared to the press process, and the mass production is possible.

In addition, the side seal completed by the roll forming process, using a high-strength steel has the advantage of ensuring safety in the event of a shock generated in the vehicle body is lightweight and excellent strength.

In addition, the forming roll for forming the coil can reduce the replacement time and setting time, it is advantageous to reduce and expand the process. In addition, the material recovery rate is excellent, there is an economic advantage, which is advantageous in the production of small quantities of various products.

1 is a flow chart of a roll forming method of a vehicle side seal according to an embodiment of the present invention;
2 is a schematic configuration diagram for implementing the roll forming method shown in FIG.
3 is a front view of a side seal for an automobile manufactured according to the roll forming method shown in FIG.
Fig. 4 is a side view of Fig. 3,
5a to 5t is a step-by-step process diagram of the roll forming method shown in FIG.
FIG. 6 is a side view illustrating a molding state of a side seal for a vehicle according to the step-by-step process of FIG. 5.

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

1 is a flow chart of a method for forming a roll of a vehicle side seal according to an embodiment of the present invention, Figure 2 is a schematic configuration diagram for implementing the roll forming method shown in Figure 1, Figure 3 is shown in Figure 1 Front view of a side seal for an automobile manufactured according to a roll forming molding method. In addition, Figure 4 is a side view of Figure 3, Figures 5a to 5t is a step-by-step process diagram of the roll forming method shown in Figure 1, Figure 6 is a side view showing the forming state of the automotive side seal according to the step-by-step process of Figure 5 to be.

Referring to the drawings, the roll forming apparatus 100 for an automotive side seal according to an embodiment of the present invention includes an uncoiler 110, a roll forming part 120, and a cutting part ( Cutting 130, a press punching 140, and a controller 150.

The uncoiler 110 is disposed in front of the process line of the roll forming apparatus (hereinafter, referred to as a 'molding apparatus' 100) of the automotive side seal. The uncoiler 110 serves to release and supply the coil 1 wound in a roll state.

On the other hand, the coil 1, which is molded into the side seal (Side Sill: 10) by the molding apparatus 100, is coupled to the rear floor (not shown) of the vehicle body side.

The coil 1 may be formed of a material of high strength steel (Steel), wherein the high strength steel is a high strength steel of 1.2t of 1180MPa and has been applied in recent years because of its light weight and excellent strength.

Referring to the drawings again, the roll forming unit 120 is to sequentially form the coil (1) punched from the uncoiler unit 110, a plurality of forming rolls (121a ~ 121t), the support frame (122). Here, the forming rolls 121a to 121t are arranged in a plural number in the horizontal direction, and include upper rolls 121a 'to 121t' and lower rolls 121a "to 121t". The upper rolls 121a 'to 121t' and the lower rolls 121a "to 121t" are arranged in a pair of upper and lower sides, and a plurality of the upper rolls 121a 'to 121t' are sequentially spaced apart along the horizontal direction.

The upper rolls 121a 'to 121t' and the lower rolls 121a "to 121t" sequentially press-form the coil 1 passing therebetween by rotation.

The support frame 122 may not only rotatably fix the upper rolls 121a 'to 121t' and the lower rolls 121a "to 121t", but also to replace various rolls according to the shape of the member to be molded. It is possible. Particularly, the upper rolls 121a 'to 121t' and the lower rolls 121a "to 121t" are performed to shape the coil 1 in steps of 20 to 25, and in the drawing, the forming roll ( 121a-121t) are shown in 20 steps. That is, the forming rolls 121a to 121t may be spaced apart from each other by forming the forming rolls 121a to 121t having the pattern of 20 steps so that the coils 1 may be completed by the side seals 10.

The cutting unit 130 is installed at the rear end of the roll forming unit 120. The cutting unit 130 serves to cut the coil 1 passed through the last forming roll 121t to a predetermined length.

The press unit 140 forms an insertion hole 1a in the coil 1 cut from the cutting unit 130 and trims an outer end thereof. The punching press 141 and the trim press 142 are formed. ). Here, the punching press 131 receives the coil 1 cut from the cutting part 130 and punches the insertion hole 1a to be formed in the coil 1. The insertion hole 1a is formed by the insertion hole 1a for coupling the side seal 10 to be completed later to the vehicle body side, that is, the rear floor (not shown). The insertion hole 1a may be formed in plural or more, and a bolt (not shown) penetrates the insertion hole 1a to serve to fix the side seal 10 to the rear floor.

The trim press 142 serves to trim the outer end of the coil 1. In other words, the trim press 142 trims the side seal 10 to be later assembled so that it can be assembled to correspond to the outer shape of the rear floor when the rear seal of the vehicle body is coupled.

As described above, the punching press 141 and the trim press 142 may be sequentially performed by a two-step process.

The controller 150 controls the driving of the uncoiler 110, the roll forming unit 120, the cutting unit 130, and the press unit 140. The controller 150 is disposed adjacent to the process line of the molding apparatus 100, and the user manipulates the control panel 151 provided at the upper end of the controller 150.

As described above, according to the molding apparatus 100 of the automotive side seal according to the present invention, the roll forming process is simplified compared to the press process, so that the mass production is possible. In addition, the side seal completed by the roll forming process, using a high-strength steel has the advantage of ensuring safety in the event of a shock generated in the vehicle body is lightweight and excellent strength. In addition, the forming roll for forming the coil can reduce the replacement time and setting time, it is advantageous to reduce and expand the process. In addition, the material recovery rate is excellent, there is an economic advantage, which is advantageous in the production of small quantities of various products.

Hereinafter, a molding method of the molding apparatus 100 will be described with reference to the drawings. 1 is a flowchart illustrating a molding method of the molding apparatus 100 shown in FIG.

Referring to FIG. 1, first, a coil 1 of a high-strength steel material is supplied. (S10) Here, the coil 1 is wound around the uncoiler 110 in a roll state, and the uncoiler 110 is The coil 1 is released and supplied.

Next, the roll punched coil 1 is roll-formed. (S20) In the roll forming, the upper rolls 121a 'to 121t' and the lower rolls 121a "to 121t" are upper and lower limits. Arranged in pairs and sequentially spaced apart in the horizontal direction. In addition, the upper rolls 121a 'to 121t' and a support frame 122 rotatably supporting the lower rolls 121a "to 121t" are included.

In particular, the upper rolls 121a 'to 121t' and the lower rolls 121a "to 121t" are formed of forming rolls 121a to 121t having a 20-step pattern in the drawing, and the coil 1 is rotated. ) And press molding sequentially.

Next, the coil 1 which has undergone the roll forming step is cut. (S30) Here, the cutting part 130 for cutting the coil 1 is installed at the rear end of the roll forming part 120 and finally, The coil 1 which passed the shaping | molding roll 121t is cut | disconnected to fixed length.

Next, an insertion hole 1a is formed in the supplied coil 1, and the outer end is pressed to trim. (S40) Here, the coil 1 transferred from the cutting unit 130 is first The punching press 141 is positioned on the punching press 141, and the punching press 141 punches the insertion hole 1a to be formed in the coil 1. The trim press 142 receives the coil 1 from the punching press 141 and presses the trim to trim the outer end of the coil 1.

As described above, the press is preferably carried out in a two-step process, but this is only an example, it is possible to process a variety of presses depending on the intended use.

On the other hand, the step of forming the pole (S30), to complete the coil (1) to the side seal 10 of the vehicle, the forming roll (121a ~ 121t) to have a pattern (a ~ t) of 20 steps Is formed. The coil 1 advances between these forming rolls 121a to 121t and is sequentially formed, and is completed with the side seals 10.

Here, the forming rolls 121a to 121t will be described with reference to the accompanying drawings for forming a molding method for completing the side seal 1. First, protrusions in which the center portion of the coil 1 protrudes in the downward direction are sequentially To be formed, a roll forming process is performed with the multi-stage forming rolls 121a to 121e.

Next, a roll forming process is performed with the multi-stage forming rolls 121f to 121j so that the center portion including the protrusions sequentially protrudes downward.

Next, the left end of the protrusion is roll-formed into the multi-stage forming rolls 121k to 121o so as to be bent to the left side which is transverse to the left end.

Finally, the right end of the protruding coil 1 includes the multi-stage forming rolls 121p to 121t so as to be bent to the right in the transverse direction with the right end.

FIG. 6 is a side view showing molding according to the pattern (a to t) of 20 steps as shown above to help understand the molding method of the side seal according to the step-by-step process of FIG. 5. These, forming rolls (121a ~ 121t) is of course formed differently in each step.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100: forming apparatus of the vehicle side seal 110: uncoiler part
120: roll forming part 121a '~ 121t': upper forming roll
121a "~ 121t": Lower forming roll 122: Support frame
130: cutting unit 140: press unit 150: control unit 10: side seal
1: coil 1a: insertion hole

Claims

Uncoiler part (Uncoiler) for releasing the coil wound in the roll state;
A roll forming unit in which a plurality of forming rolls are spaced apart in a horizontal direction so as to sequentially form a coil supplied from the uncoiler unit;
A cutting part (Cutting) installed at the rear end of the roll forming part to cut the coil passing through the last forming roll to a predetermined length;
A punching part installed on one side of the cutting part to punch an insertion hole in the coil cut by the cutting part, and to trim the outer end by receiving the punched coil; And
Roll forming apparatus for a side seal for a vehicle comprising a control unit for controlling the driving of the uncoiler, roll forming, cutting and pressing.

The method according to claim 1,
The forming roll,
Roll forming apparatus for a side seal for a vehicle comprising an upper and lower rolls arranged up and down and the support frame for rotatably supporting both sides of the upper and lower rolls to press-form the coil by rotation.

The method according to claim 1,
Roll forming apparatus for a side seal for a vehicle, characterized in that the coil is a high-strength steel (Steel) material.

Supplying a coil;
Rollforming the coil supplied;
Cutting the coil after the roll forming step; And
Rolling molding method of a side seal for a vehicle comprising the step of punching to form an insertion hole in the cut coil, and pressing to trim the outer end.

The method of claim 4,
The roll forming step,
A multi-stage forming roll for roll forming so that the center portion of the coil forms a protrusion protruding downward;
A multi-stage forming roll for roll forming so that the center portion including the protrusion is formed to protrude;
The left end of the projection, the multi-stage forming roll roll forming so as to be bent to the left in the transverse direction with the left end and
The right end of the protruding coil, the roll forming method of the automotive side seal including a forming roll of a multi-stage roll forming so as to be bent to the right in the transverse direction with the right end.

The method of claim 4,
The pressing step of forming the insertion hole and the outer end is trimmed,
Roll forming molding method for a side seal for a vehicle, characterized in that each is performed by a two-step press.

The method of claim 4,
The roll forming step,
Roll forming forming method for a side seal for a vehicle characterized in that it is carried out through a step of 20 to 25 by a plurality of forming rolls sequentially spaced along the horizontal direction.