JP2002028743A - Method and device for manufacturing blank for vehicle body panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing technology of a blank for a vehicle body panel in which a strap is not loss, and a facility can be miniaturized. SOLUTION: A first blank 55B and a second blank 55C are punched from a strip 12 which is intermittently fed as shown by an arrow (3) in Fig. (a) as indicated by an imaginary line, and a second strap 54 and a third strap 64 are cut out of a scrap of the first blank 55B and the second blank 55C, respectively. In Fig. (b), the second strap 54 is kept waiting and the second strap is joined with the second blank 55C to obtain a blank 55A with the strap. Since the strap is not discharged out of upper and lower blank patterns, the strap is not lost, and the strap control can be omitted thereby.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a technique for manufacturing a blank for a vehicle body panel.

[0002]

2. Description of the Related Art For example, Japanese Unexamined Patent Publication (Kokai) No. 58-128231 discloses a method of punching a material for an automobile body, as shown in FIG. When punching the outer side panel material 2, one punched portion 3 is used to punch out one lower divided material 13 or 13 ′ for each punched portion 3, and each punched portion 4 is used to punch out One upper divided material 14 or 14 ′ is punched for each punching portion 4, and the obtained lower divided material 13 or 13 ′ and upper divided material 14 or 1 are obtained.
The technique of manufacturing the tailgate blank 8 of FIG. 3 by welding 4 'is described. That is, from the scrap generated during the blanking process of the body material,
It is well known that cutting a piece and manufacturing a body part with this piece increases the material yield.

[0003]

In the example of the above publication, the outer side panel material taken out of the blanking press is conveyed in the order of a draw press, a trimming press, and a piercing press, and is subjected to predetermined drawing, trimming, and punching. The molding of the outer side panel will be advanced. On the other hand, the lower divided material and the upper divided material taken out of the blanking press are transported to the welding site by another route, and are welded at the welding site to form a tailgate material.

If attention is paid to the lower divided material and the upper divided material, a dedicated conveying means for conveying these materials must be provided by extending from a blanking press or the like.
The dedicated conveying means causes a work space around the blanking press to be narrowed. In addition, it is necessary to sufficiently manage the lower divided material and the upper divided material so as not to be lost or lost in other parts while being transported to the welding site. Furthermore, a temporary storage space for the lower divided material and the upper divided material and a temporary storage space for the completed tailgate material are required at the welding site, and the welding site occupies a large space.

[0005] In order to improve the yield of material by cutting out useful pieces from the scrap portion in this way, dedicated conveying means for the pieces, measures to prevent the pieces from being lost, and a large space welding site are required. And an increase in equipment area is likely to be caused. SUMMARY OF THE INVENTION It is an object of the present invention to provide a technique for manufacturing a blank material for a vehicle body panel that does not cause a risk of loss of pieces and that can reduce the size of equipment.

[0006]

In order to achieve the above object, a method of manufacturing a blank material for a vehicle body panel according to a first aspect of the present invention is to insert a strip for a vehicle body panel between upper and lower blank molds and to reinforce the body panel. Preparing a first backing plate for the vehicle and, by relatively meshing the upper blanking die with the lower blanking die, obtains a blank material for the vehicle body panel and forms the same shape as the first backing plate from the scrap portion A blanking step of obtaining a second patch plate, a patch plate attaching step of attaching the first patch plate to a blank material between the upper and lower blank molds and joining the first blank plate, and separating the upper blank mold from the lower blank mold and attaching a blank plate. A dispensing process for dispensing blank material,
Consists of

The first backing plate is joined to the blank material in a blanking step. If the backing plate is joined to the blank material at another place or at another step, the blank material must be transported or placed. However, according to claim 1, since it can be processed in the upper and lower blank molds, the transport of the blank material can be performed. No storage space is required, and the equipment can be made more compact.

According to a second aspect of the present invention, there is provided a method of manufacturing a blank for a vehicle body panel, wherein the second backing plate is moved to a position where the first backing plate was previously located and joined to the next blank. The movement of the caul plate is kept in the upper and lower blank molds. That is, the backing plates cut by the upper and lower blank molds are joined to the next blank material without being taken out. When the backing plate is taken out and moved to a welding place or the like, a dedicated transportation means is required, but according to the second aspect, this is not necessary. In addition, since the caul plate is not taken out of the upper and lower blank molds, there is no risk of the caul plate being lost, and component management of the caul plate can be omitted.

A third aspect of the present invention is an apparatus for manufacturing a blank material for a vehicle body panel by punching a strip with an upper and lower blank mold. A punching plate moving means for moving a patch formed by the cutter and the die from a punching place to a mounting place is provided. It is characterized in that it is provided with a contact plate joining means for joining together.

[0010] A backing plate is blanked together with the blank material from the strip. The caul plate is moved by the caul plate moving means and joined to the blank material by the caul plate joining means. The movement of the caul plate is kept in the upper and lower blank molds. That is, the backing plates cut by the upper and lower blank molds are joined to the next blank material without being taken out. When the backing plate is taken out and moved to a welding place or the like, a dedicated transportation means is required, but according to the third aspect, this is not necessary. In addition, since the caul plate is not taken out of the upper and lower blank molds, there is no risk of the caul plate being lost, and component management of the caul plate can be omitted.

In the apparatus for manufacturing a blank material for a vehicle body panel according to a fourth aspect of the present invention, the backing plate joining means interposes two plates consisting of the blanking material and the backing plate attached to the blank material, and the concave portion disposed on one side. And a punch arranged on the other side,
The punching mechanism is characterized in that the punch is extruded toward the concave portion, so that the two plates are swaged and joined together.

According to the fourth aspect, the work efficiency can be improved because the crimping is performed only by the punch and the concave portion.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a layout diagram of an apparatus for manufacturing a blank material for a body panel according to the present invention. A manufacturing apparatus 10 for a blank material for a body panel uses a leveler 13 to flatten a strip 12 rewound from a coil 11, and Blank type 2
This is a device that obtains a blank material by punching with a blank press having 0 and 40 as main members.

FIG. 2 is a cross-sectional view taken along the line 2-2 of FIG. 1, that is, a side view of the upper and lower blank molds according to the present invention. And a third die portion 24, a fourth die portion 25, and a fifth die portion 26, and the third die portion 24 and the fourth die portion 25.
The projecting plate 27 which is an element of the contact plate moving means 30
And a protruding cylinder 28, and the fourth die 25 and the fifth
A shutter plate 31, which is another element of the contact plate moving means 30, is provided between the die plate 26 and the die plate 26 so as to be able to swing around a pin 32, and a through hole 33 is provided near the shutter plate 31. Is provided with a backing plate placing plate 34 and an elevating cylinder 35. That is, the caul plate moving means 3
Reference numeral 0 denotes a protruding plate 27, a protruding cylinder 28, a shutter plate 31, and a through hole 33.

The upper blank mold 40 includes a first main body 41 and first to fifth cutters 42 to 46 for cutting a work in pairs with the first to fifth die portions 22 to 26. Cutter part 42, second cutter part 43, fifth cutter part 46
Rubber presser 47 for holding the work in the vicinity of
.. indicates a plurality. The same applies hereinafter. ) And a punch 48 for caulking at a position facing the support plate placing plate 34.
And a gun 49. First to fifth cutter units 42 to 46
When it descends to the position shown by the imaginary line, it exerts the action of cutting the work. Note that the upper blank mold 40 may be fixed, and the lower blank mold 20 may be raised to cut the workpiece.

The operation of the upper and lower blank type having the above configuration will be described below. FIG. 3 is an explanatory view of a first operation of the upper and lower blank molds according to the present invention. In a state where the protruding plate 27 is lowered, the shutter plate 31 is lowered, and the upper blank mold 40 waits upward, A strip 12 as a work is inserted between the front side and the back side in the figure. Then, before, after, or simultaneously with the insertion of the band plate 12, the first backing plate 51 is mounted on the backing plate mounting plate.

FIGS. 4 (a) and 4 (b) are views for explaining a second operation of the upper and lower blank type according to the present invention. FIG. 4 (a) is a plan view of the blank material, and FIG. is there. That is, in (b), when the upper blank mold 40 is lowered to the bottom dead center, the first cutter section 42 comes into sliding contact with the first die section 22 to cut off the first scrap 52. On the other hand, a large second scrap 53 is cut off by the second cutter part 43 and the fifth cutter part 46 at the same time, and at the same time, the second cutter 53 is separated from the large second scrap 53 by the third cutter part 44 and the fourth cutter part 45. The contact plate 54 is cut out. In (a), the second
It can be said that the second scrap 53 was punched out with the backing plate 54 left. The second backing plate 54 is connected to the first backing plate 51.
Although the shape is the same as that of FIG. 1, first and second are added for the sake of convenience for easy distinction.

Returning to (b), while holding the upper blank mold 40 at the bottom dead center, the first backing plate 51 is
And caulking in the manner shown in FIG. In addition,
In (a), reference numerals 56 and 56 denote caulking portions, and there is no concern that the first backing plate 51 comes off the blank material 55. The area indicated by reference numeral E1 is a punching area, and the area indicated by reference numeral E2 is an area.

FIGS. 5 (a) and 5 (b) are views showing the construction and operation of the patch plate joining means employed in the present invention. The caul plate joining means 60 employed in the present invention is a caulking mechanism. To explain the details of the caulking mechanism, in FIG. 5A, the caulking mechanism 60 includes a gun 49 attached to the upper blank mold 40, a punch 48 attached to the gun 49, and a lower blank mold 20. A lifting cylinder 35 attached thereto, and a recess 6 engraved at the tip of a piston rod 61 of the cylinder 35.
2 and the plate resting plate 34 attached to the piston rod 61
And consisting of

In (b), the piston rod 61 of the elevating cylinder 35 is raised, and the first contact plate 51 is brought into contact with the lower surface of the blank material 55. Next, the punch 48 is lowered by the gun 49 to enter the concave portion 62. First contact plate 5 in recess 62
By flowing a part of 1, the first backing plate 51 applied to the blank 55 can be joined to the blank 55.

Returning to FIG. 4, the first backing plate 5 shown in FIG.
The blank material 55A provided with No. 1 (the blank material with a backing plate is referred to as 55A) is replaced with the upper blank mold 40 in FIG.
Can be paid out to the back of the drawing.

FIG. 6 shows a third embodiment of the upper and lower blank type according to the present invention.
FIG. 9 is an operation explanatory diagram, that is, a diagram illustrating the operation of the caul plate moving means 30. The following operation is performed while the dispensing of the blank material is completed and the upper blank mold 40 is at the standby position. The contact plate placing plate 34 is lowered, and the shutter plate 31 is swung in the direction of an arrow so as to face the through hole 33.
The second contact plate 54 remaining at 0 is protruded by the protruding plate 27. The second backing plate 54 is the shutter plate 31 as shown by the arrow.
, Slides, passes through the through-hole 33,
Leads to. The second contact plate 54 placed on the contact plate placing plate 34 is
The next blank material 55 is provided. That is, the projecting plate 2
7. The second moving means 30 including the projecting cylinder 28, the shutter plate 31, and the through hole 33,
This means that the contact plate 54 can be moved to the mounting place E2.

In this example, the second backing plate 54 is moved laterally in the apparent upper and lower blank molds 20 and 40 without going out of the upper and lower blank molds 20 and 40, so that the blank 5
5 can be joined. Upper and lower blank molds 20, 40
When the scrap is taken out from the scrap and the patch is cut out from this scrap at another place, it is necessary to cut out the patch from the scrap, transport and store the cut patch, and take measures to prevent loss of the patch. According to 6, there is no risk of losing the second backing plate 54.

The operation of FIGS. 3 to 6 will be described with reference to FIG. FIGS. 7A and 7B are explanatory diagrams of the method of the present invention. In (a), the first blank material 55B and the second blank material 55C are punched out from the strip 12 flowing in the direction of the arrow at a constant tact as indicated by the imaginary line, and the first blank material 55B is cut. It is assumed that the second backing plate 54 is cut out of scrap and the third backing plate 64 is cut out of the second blank material 55C. In (b), the second backing plate 54 is set on standby,
By joining the backing plate to the second blank 55C, a blank 55A with a backing plate can be obtained. 56,
56 is a caulking part.

From the above operations, the method of the present invention can be summarized as follows. In FIG. 3, the upper and lower blank molds 20,
The belt plate 12 for the vehicle body panel is put in between 40 and a first backing plate 51 for reinforcing the vehicle body panel is prepared.
This is called a preparation process. Next, in FIG. 4 (b), the upper blank mold 40 is relatively engaged with the lower blank mold 20 to obtain a blank 55 for the vehicle body panel, and a second scrap 53 is used to separate the first backing plate 51 from the second scrap 53. A second backing plate 54 having the same shape as the above is obtained. This is called a blanking step. Subsequently, referring to FIG.
The first blanking plate 51 is attached to the blank material 55 located therebetween and joined. This is referred to as a plate attaching process. Then, the upper blank mold 40 is separated from the lower blank mold 20, and the blank material with the backing plate is discharged. This is called a payout process.
By repeating the above-described steps of the preparation step, the blanking step, the attaching plate attaching step, the payout step, and the preparing step, the blank member 55A with the attaching plate can be efficiently manufactured.

FIG. 8 is a view showing another embodiment of FIG. 6, in which the lower blank mold 20 is provided with a palletizer 71 and a pusher 72 as a patch supply mechanism 70, and the stacked plates 73. The lowermost contact plate 73 is extruded as indicated by an arrow in the manner of dropping a dharma, and is placed on the contact plate placing plate 34 through the through hole 74. The contact plate 73 ...
Either one cut from scrap or one cut from steel strip may be used. Even when such a caul plate supply mechanism 70 is provided, the caulking plate is efficiently attached by repeating the steps of the preparation process, the blanking process, the caul plate attaching process, the payout process, the preparatory process, and so on. Blank material can be manufactured.

In the first aspect, the contact plate may be supplied by the supply method shown in FIGS. 6 and 8 or a supply method equivalent thereto. In the third aspect, the type of the contact plate joining means is not limited as long as it is caulking, joining with an adhesive, welding by welding, or equivalent joining means.

[0028]

According to the present invention, the following effects are exhibited by the above configuration. The method of manufacturing a blank material for a vehicle body panel according to claim 1 is characterized in that the first backing plate is joined to the blank material in a blanking step. If the backing plate is joined to the blank material at another place or at another step, the blank material must be transported or placed. However, according to claim 1, since it can be processed in the upper and lower blank molds, the transport of the blank material can be performed. No storage space is required, and the equipment can be made more compact.

According to a second aspect of the present invention, there is provided a method of manufacturing a blank for a vehicle body panel, wherein the second backing plate is moved to a position where the first backing plate was previously located and joined to the next blank.
The movement of the caul plate is kept in the upper and lower blank molds. That is,
The backing plates cut out by the upper and lower blank molds are joined to the next blank material without being taken out. If you take out the backing plate and move it to a welding place, a special transportation method is required,
According to claim 2, this is not necessary. In addition, since the caul plate is not taken out of the upper and lower blank molds, there is no risk of the caul plate being lost, and component management of the caul plate can be omitted.

According to a third aspect of the present invention, there is provided an apparatus for manufacturing a blank material for a vehicle body panel, wherein a blank plate is punched together with a blank material from a band plate, and this blank plate is moved by a compact plate moving means and joined to the blank material by a compact plate joining means. Thereby, the movement of the caul plate is kept in the upper and lower blank molds. That is, the backing plates cut by the upper and lower blank molds are joined to the next blank material without being taken out. When the backing plate is taken out and moved to a welding place or the like, a dedicated transportation means is required, but according to the third aspect, this is not necessary. In addition, since the caul plate is not taken out of the upper and lower blank molds, there is no risk of the caul plate being lost, and component management of the caul plate can be omitted.

According to a fourth aspect of the present invention, there is provided an apparatus for manufacturing a blank material for a vehicle body panel, wherein the caul plate joining means is a caulking mechanism. As a method of joining the two plates, adhesion by an adhesive and welding by welding are known. However, in claim 4, the work efficiency is improved because the punch and the recess are merely crimped.

[Brief description of the drawings]

FIG. 1 is a layout diagram of an apparatus for manufacturing a blank material for a vehicle body panel according to the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is an explanatory view of a first operation of the upper and lower blank type according to the present invention.

FIG. 4 is an explanatory view of a second operation of the upper and lower blank type according to the present invention.

FIG. 5 is a configuration diagram and operation explanatory diagram of a patch plate joining means employed in the present invention.

FIG. 6 is an explanatory view of a third operation of the upper and lower blank type according to the present invention.

FIG. 7 is an explanatory view of the method of the present invention.

FIG. 8 is a view showing another embodiment of FIG. 6;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Manufacturing apparatus of blank material for body panels, 12 ... Strip steel, 20 ... Lower blank type, 24 ... Cutter part (third cutter part) for punching a backing plate from a scrap part, 25 ... Perforating plate from a scrap part Cutter part to be pulled out (fourth cutter part), 30 ... contact plate moving means, 40 ... top blank type, 4
4: die part (third die part) for punching a patch from a scrap part, 45: die part (fourth die part) for punching a patch from a scrap part, 48: punch, 51: first plate,
53: scrap portion (second scrap), 54: second scrap
Backing plate, 55: blank material, 55A: blank material with backing plate, 60: backing plate joining means (caulking mechanism), 62: recess, E1: punching place, E2: mounting place.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification FI FI Theme Court ゛ (Reference) // B62D 65/00 B62D 65/00 A (72) Inventor Iwanami Isao 1-chome, Shinsayama, Sayama City, Saitama Prefecture 10-1 1 Honda Engineering Co., Ltd. (72) Inventor Masanori Numano 1-10-1 Shinsayama, Sayama-shi, Saitama F-term (reference) 3D114 AA03 AA20 BA01 CA03 DA01 EA17 4E048 DA02 4E050 AA14

Claims (4)

[Claims] 1. A preparation step of inserting a strip for a vehicle body panel between upper and lower blank molds and preparing a first backing plate for reinforcing a body panel, and relatively meshing an upper blank mold with a lower blank mold. A blanking step of obtaining a blank material for the vehicle body panel and obtaining a second patch having the same shape as the first patch from a scrap portion,
A vehicle body comprising: a patch attaching step of attaching the first patch to the blank between the upper and lower blanks and joining the first blank; and a payout step of releasing the blank with the patch by separating the upper blank from the lower blank. Manufacturing method of blank material for panel. 2. The manufacturing method of a body panel blank according to claim 1, wherein the second patch is moved to a position where the first patch was previously located and joined to the next blank. Method. 3. A manufacturing apparatus for manufacturing a body panel blank material by punching a strip with an upper and lower blank mold, wherein the upper and lower blank molds are provided with a cutter portion and a die portion for punching a backing plate from a scrap portion. A patch plate moving means for moving a patch plate formed by punching with a cutter part and a die part from a punching place to a mounting place, and a contact plate joining means for joining the patch plate to a blank material at the mounting place. An apparatus for producing a blank material for a vehicle body panel. 4. The punching plate joining means comprises a concave member disposed on one side and a punch disposed on the other side, with two plates consisting of a blank and a paddle attached to the blank therebetween. 4. The apparatus for manufacturing a blank material for a vehicle body panel according to claim 3, wherein the apparatus is a caulking mechanism which is capable of caulking and joining the two plates by extruding the two toward the recess.