CN105964754A - Bottomed cylindrical component and method for manufacturing same - Google Patents

Bottomed cylindrical component and method for manufacturing same Download PDF

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Publication number
CN105964754A
CN105964754A CN201610055404.XA CN201610055404A CN105964754A CN 105964754 A CN105964754 A CN 105964754A CN 201610055404 A CN201610055404 A CN 201610055404A CN 105964754 A CN105964754 A CN 105964754A
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CN
China
Prior art keywords
described
corner part
parts
bottom tube
formed
Prior art date
Application number
CN201610055404.XA
Other languages
Chinese (zh)
Inventor
吉田正敏
Original Assignee
株式会社神户制钢所
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Publication date
Priority to JP2015051445A priority Critical patent/JP2016168619A/en
Priority to JP2015-051445 priority
Application filed by 株式会社神户制钢所 filed Critical 株式会社神户制钢所
Publication of CN105964754A publication Critical patent/CN105964754A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20Deep-drawing
    • B21D22/201Work-pieces; preparation of the work-pieces, e.g. lubricating, coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20Deep-drawing
    • B21D22/26Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D24/00Special deep-drawing arrangements in, or in connection with, presses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00Making hollow objects
    • B21D51/16Making hollow objects characterised by the use of the objects
    • B21D51/18Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00Making hollow objects
    • B21D51/16Making hollow objects characterised by the use of the objects
    • B21D51/52Making hollow objects characterised by the use of the objects boxes, cigarette cases, or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/24Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
    • B65D5/241Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the inside of the container body
    • B65D5/242Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the inside of the container body the gussets folds comprising more than two gusset panels

Abstract

An objective of the invention is to provide a bottomed container and a method for manufacturing the same. Two moulds (a die and a punch) do not need pairwise special operation, and a bottomed cylindrical component which is high in formed height and is formed by just bending through cold stamping of mass production of a workblank material is used. The characteristics of the manufacturing method are that the method has an official forming process wherein the workblank material (1) which is formed with folds (1d,1e,1f) through a pre-forming process is installed between the die (4) and the punch (3) in a manner of corresponding to the shape of the workblank material, and the workblank material is punched and formed. Thus, a four-edge cylinder component of a bottomed cylindrical component is formed. In the official forming process, under the condition that a rib (1g) extending outwards from the middle of adjacent longitudinal walls (1b) of the four-edge cylinder component is formed when looking down in punching forming, a groove (4f) is arranged on the corner portion (4c) of the inner side surface of the die.

Description

There are bottom tube-like parts and manufacture method thereof

Technical field

The present invention relates to by blank material by the stamping forming height formed higher have bottom tube-like parts and Its manufacture method.

Background technology

Be equipped on the fuel tank of vehicle, battery tray etc. mostly by sheet material by punching press deep drawn be formed the end and In the most cylindric or square cartridge.Also require it is watertight structure due to such fuel tank, battery tray etc., therefore pass through Stamping formed integrally, and, owing to wanting to increase as far as possible internal capacity, therefore urgent expectation reduces turning under overlooking Angle R and improve forming height as far as possible.

But, there are the following problems, i.e. turning R is the least and forming height is the highest, then in punching press deep drawn shapes, Produce fracture and be difficult to shape.

As the technology eliminating such problem points, it was also proposed that reduce drawing resistance and improve the technology of forming limit (for example, referring to patent documentation 1).In the art, utilize blank holder and punching die to carry out constraint material, set in the local of punch die Put recess, turn back by producing fold energetically at this position and form flange, hindered by the drawing reducing corner part flange Power and improve forming limit.

It addition, as another technology eliminating the problems referred to above point, it is also proposed that do not use blank holder to be formed to cylindrical portion The manufacturing process (for example, referring to patent documentation 2) of what turned back in the inner side of the corner part of part turn back for a pair flange.In the art, Owing to being manufactured by bending forming with drawing and forming hardly, therefore, it is possible to expect significantly carrying of forming limit High.

Citation

Patent documentation

Patent documentation 1: No. 4985909 publications of Japanese Patent Publication No.

Patent documentation 2: No. 3454656 publications of Japanese Patent Publication No.

But, the technology disclosed in patent documentation 1 the most also there is a problem that due to by deep drawn shape into Row shapes, and therefore the minimizing of drawing resistance there is also the limit, in the feelings shaping the deepest formed products (that is, forming height increases) Under condition, still can produce fracture.

It addition, there are two moulds in the technology disclosed in patent documentation 2 is required to carry out the problem of paired particular job, That is, a pair turned back to form the inner side to corner part turns back flange, arranges special guide protrusion, at drift on punch die What upper setting was corresponding with this guide protrusion keeps out of the way groove.It addition, in blank material itself, owing to becoming after stamping end The region of corner part is completely absent the guiding piece of the starting point becoming the bending forming for forming the flange that turns back for a pair, the most right Blank material itself produces bigger bending resistance.It addition, based on the principle that structure in there are the following problems: entering When row is stamping, not only it is difficult to prepare for forming two paired to the above flange that turns back at corner part on vpg connection Punch die and drift, the formation of the flange that turns back itself also becomes unstable.

Summary of the invention

It is an object of the invention to provide bottom tube-like parts and its manufacture method, not only need not two moulds (punch die and drift) implements paired particular job respectively, it is also possible to using can be from the mass-produced cold stamping of blank material Shape, only by general curved shape just can be formed forming height higher have bottom tube-like parts.

For solving the means of problem

In order to realize this purpose, the bottom tube-like parts that have of first scheme have bottom and erect many from this bottom peripheral edge Individual longitudinal wall, it is characterised in that

This has bottom tube-like parts by blank material is carried out stamping forming, and has and described bottom and adjacent Multiple corner parts that described longitudinal wall is integrally forming,

This corner part is provided with more than one described longitudinal wall adjacent from overlooking, and the most laterally or inner side is stretched The flank gone out,

This flank is made up of a pair flange that turns back, and this flange that turns back for a pair is with the region by becoming described corner part substantially etc. The mode divided carries out turning back forming with the folding line being previously formed in described blank material for boundary,

The overhang towards outside or inner side of described flank under side-looking along with from described bottom towards described longitudinal wall Open side and be gradually increased, and,

Described flank extends towards outside under being not disposed on overlooking prominent flange from the open end of described flank.

First scheme have bottom tube-like parts on the basis of, the bottom tube-like parts that have of alternative plan are characterised by,

Described corner part in substantially arc-shaped, is formed at 2~4 at this corner part forming substantially arc-shaped under overlooking Described flank.Here, substantially arc-shaped refers to that curved, line part that mathematically radius of curvature is constant are connected with each other Curved or Proximal surface shape polygon-shaped.It is formed with rib in the way of the corner part from such substantially arc-shaped stretches out Portion.

Alternative plan have bottom tube-like parts on the basis of, the bottom tube-like parts that have of third program are characterised by,

In described bottom, the rib being formed with stretching out towards outside or inner side from the described corner part forming substantially arc-shaped Portion respectively corresponding, overlook lower continuous print recess or protuberance.Substantially arc-shaped is as defined above.

Third program have bottom tube-like parts on the basis of, the bottom tube-like parts that have of fourth program are characterised by,

It is arranged at the recess of described bottom or protuberance under overlooking from the center forming the substantially described corner part of arc-shaped Radially formed.Substantially arc-shaped is as defined above.

In first scheme to fourth program on the basis of either a program, the feature having bottom tube-like parts of the 5th scheme exists In,

Described have bottom tube-like parts to be provided with the flange prominent towards outside extension from the open end of described longitudinal wall.

The manufacture method having bottom tube-like parts of the 6th scheme is to manufacture the manufacturer having bottom tube-like parts of first scheme Method, it is characterised in that there is following operation:

Preliminary forming operation, for have after stamping become described in have the bottom of bottom tube-like parts, multiple longitudinal wall And the blank material in each region of multiple corner part, use preparation mould becoming the region of described bottom and becoming vertical The boundary in the region of wall, become the region of described longitudinal wall and the boundary in the region becoming corner part and described for becoming The position of the region of corner part substantially decile, forms folding line respectively;And

Formal forming process, make by this preliminary forming operation formed blank material creasy with this blank material Mode corresponding to shape is arranged between punch die and drift and carries out stamping, be consequently formed described in have bottom tube-like parts,

In this formal forming process,

It is formed at when carrying out stamping under vertical view and has the adjacent described longitudinal wall of bottom tube-like parts to each other from described In the case of the more than one flank stretched out laterally, the corner part at described punch die is provided with groove,

It is formed at when carrying out stamping under vertical view and has the adjacent described longitudinal wall of bottom tube-like parts to each other from described In the case of the more than one flank that inner side is stretched out, the corner part at the lateral surface of described drift is provided with groove.

On the basis of the manufacture method having bottom tube-like parts of the 6th scheme, the system having bottom tube-like parts of the 7th scheme The method of making is characterised by,

In described preliminary forming operation, form the position of folding line in order to the region substantially decile of described corner part will be become The quantity put is 3~7.

On the basis of the manufacture method having bottom tube-like parts of the 6th scheme or the 7th scheme, eighth aspect have the end The manufacture method of cartridge is characterised by,

Being formed as inside the corner part of described punch die overlooking lower inscribed circle radius of curvature is the shape of R1, outside described drift The corner part of side be formed as having corresponding with the inscribed circle of the corner part of described punch die and overlook under radius of curvature be R2's The shape of curved surface, is set as described by the gap between the described drift represented by the difference of described R1 and described R2 and described punch die More than the 100% and less than 200% of the thickness of slab of blank material, here, R1 > R2.

On the basis of the manufacture method having bottom tube-like parts of eighth aspect, the system having bottom tube-like parts of the 9th scheme The method of making is characterised by,

In described formal forming process,

It is formed at when carrying out stamping under vertical view and has the adjacent described longitudinal wall of bottom tube-like parts to each other from described In the case of the more than one flank stretched out laterally, the corner part in described punch die bottom surface is provided with groove,

It is formed at when carrying out stamping under vertical view and has the adjacent described longitudinal wall of bottom tube-like parts to each other from described In the case of the more than one flank that inner side is stretched out, the corner part in described drift bottom surface is provided with groove.

On the basis of the manufacture method having bottom tube-like parts of the 9th scheme, the system having bottom tube-like parts of the tenth invention The method of making is characterised by,

The groove that corner part in described punch die bottom surface or the corner part of described drift bottom surface are respectively provided with is from each corner part Center is radially formed.

In the 6th scheme to the tenth scheme on the basis of the manufacture method having bottom tube-like parts of either a program, the 11st The manufacture method having bottom tube-like parts of scheme is characterised by,

The lateral surface in addition to corner part that upper end side at described drift is provided with from described drift prolongs towards outside Stretch prominent flange.

Invention effect

As above, the bottom tube-like parts that have of the present invention have bottom and the multiple longitudinal walls erected from this bottom peripheral edge, and this has Bottom tube-like parts, by blank material is carried out stamping forming, have and are formed with described bottom and adjacent described longitudinal wall The multiple corner parts being integrated,

This corner part is provided with more than one described longitudinal wall adjacent from overlooking, and the most laterally or inner side is stretched The flank gone out,

This flank is made up of a pair flange that turns back, and this flange that turns back for a pair is with the region by becoming described corner part substantially etc. The mode divided carries out turning back forming with the folding line being previously formed in described blank material for boundary,

The overhang towards outside or inner side of described flank under side-looking along with from described bottom towards described longitudinal wall Open side and be gradually increased, and,

Described flank extends towards outside under being not disposed on overlooking prominent flange from the open end of described flank,

Therefore, not only need not two moulds (punch die and drift) are implemented paired particular job respectively, it is also possible to Use can shape from the mass-produced cold stamping of blank material, is only shaped by general curved and can be realized as forming height relatively High has bottom tube-like parts.

It addition, the manufacture method having bottom tube-like parts of the present invention has a following operation:

Preliminary forming operation, for have after stamping become described in have the bottom of bottom tube-like parts, multiple longitudinal wall And the blank material in each region of multiple corner part, use preparation mould becoming the region of described bottom and becoming vertical The boundary in the region of wall, become the region of described longitudinal wall and the boundary in the region becoming corner part and described for becoming The position of the region of corner part substantially decile forms folding line respectively;And

Formal forming process, make by this preliminary forming operation formed blank material creasy with this blank material Mode corresponding to shape is arranged between punch die and drift and carries out stamping, be consequently formed described in have bottom tube-like parts,

In this formal forming process,

It is formed at when carrying out stamping under vertical view and has the adjacent described longitudinal wall of bottom tube-like parts to each other from described In the case of the more than one flank stretched out laterally, the corner part at described punch die is provided with groove,

It is formed at when carrying out stamping under vertical view and has the adjacent described longitudinal wall of bottom tube-like parts to each other from described In the case of the more than one flank that inner side is stretched out, the corner part at the lateral surface of described drift is provided with groove,

Therefore, it is possible to provide a kind of manufacture method, wherein, not only need not to two moulds (punch die and drift) respectively Implement paired particular job, it is also possible to use and can shape from the mass-produced cold stamping of blank material, only by the most curved Bent shape just can manufacture forming height higher have bottom tube-like parts.

Accompanying drawing explanation

Fig. 1 be for be configured to embodiments of the present invention 1 have bottom tube-like parts before blank material say Bright diagrammatic top view.

Fig. 2 is the enlarged partial isometric view of the preparation mould of this embodiment 1.

Fig. 3 is the partial enlarged drawing of the blank material before and after the preliminary forming of this embodiment 1, and (a) is pre-shown in Fig. 1 A portion enlarged drawing before standby shaping, (b) is the axonometric chart after preliminary forming.

Fig. 4 is drift during the formal shaping illustrating this embodiment 1, the blank material after preliminary forming and punch die The schematic isometric of position relationship.

Fig. 5 is the detail shape dimensional drawing of the drift shown in Fig. 4 and punch die.

Fig. 6 be illustrate this embodiment 1 formal shape in the deformation state figure of deformation state of blank material.

Fig. 7 be for be configured to embodiments of the present invention 2 have bottom tube-like parts before blank material say Bright diagrammatic top view.

Fig. 8 is the enlarged partial isometric view of the preparation mould of this embodiment 2.

Fig. 9 is the partial enlarged drawing of the blank material before and after the preliminary forming of this embodiment 2, and (a) is pre-shown in Fig. 7 B portion enlarged drawing before standby shaping, (b) is the axonometric chart after preliminary forming.

Figure 10 is drift during the formal shaping illustrating this embodiment 2, the blank material after preliminary forming and punch die The schematic isometric of position relationship.

Figure 11 be illustrate this embodiment 2 formal shape in the deformation state figure of deformation state of blank material.

Figure 12 be to be configured to embodiments of the present invention 3 have bottom tube-like parts before blank material illustrate Diagrammatic top view.

Figure 13 is the enlarged partial isometric view of the preparation mould of this embodiment 3.

Figure 14 is the partial enlarged drawing of the blank material before and after the preliminary forming of this embodiment 3, and (a) is shown in Figure 12 C portion enlarged drawing before preliminary forming, (b) is the axonometric chart after preliminary forming.

Figure 15 is drift during the formal shaping illustrating this embodiment 3, the blank material after preliminary forming and punch die The schematic isometric of position relationship.

Figure 16 is the detail shape dimensional drawing of the drift shown in Figure 15 and punch die.

Figure 17 be illustrate this embodiment 3 formal shape in the deformation state figure of deformation state of blank material.

Description of reference numerals

1 blank material

The region of the bottom of four limit cartridge units is become after 1a is stamping

The region of multiple (four) longitudinal wall of four limit cartridge units is become after 1b is stamping

The region of multiple (four) corner part of four limit cartridge units is become after 1c is stamping

1d, 1e, 1f folding line

1g flank

2,6 preparation mould

The region corresponding with region 1a of 2a preparation mould 2

The region corresponding with region 1b of 2b preparation mould 2

The region corresponding with region 1c of 2c preparation mould 2

3,7 drift

4,8 punch die

The bottom surface of 4a punch die 4

The medial surface of 4b punch die 4

The corner part of 4c punch die 4

The groove of 4f punch die 4

The region corresponding with region 1a of 6a preparation mould 6

The region corresponding with region 1b of 6b preparation mould 6

The region corresponding with region 1c of 6c preparation mould 6

The corner part of the lateral surface of 7c drift 7

The bottom surface of 8a punch die 8

The medial surface of 8b punch die 8

The corner part of the medial surface 8b of 8c punch die 8

The groove of 8f punch die 8

Detailed description of the invention

Hereinafter, the present invention is described in detail for illustrated embodiment.

(embodiment 1)

Fig. 1 be to be configured to embodiments of the present invention 1 have bottom tube-like parts before blank material illustrate Diagrammatic top view, Fig. 2 is the enlarged partial isometric view of the preparation mould of this embodiment 1, and Fig. 3 is this embodiment 1 The partial enlarged drawing of the blank material before and after preliminary forming, (a) is the A portion enlarged drawing before the preliminary forming shown in Fig. 1, and (b) is A portion axonometric chart after preliminary forming, Fig. 4 is drift during the formal shaping illustrating this embodiment 1, the blank after preliminary forming The schematic isometric of the position relationship of material and punch die, Fig. 5 is the detail shape dimensional drawing of the drift shown in Fig. 4 and punch die, Fig. 6 be illustrate this embodiment 1 formal shape in the deformation state figure of deformation state of blank material.

In FIG, reference 1 be cold stamping shape before (following, sometimes referred to simply as " stamping ") by 6000 The blank material of vertical 800mm × horizontal 1000mm × thickness 1.0mm that line aluminium alloy is constituted, reference 1a is after stamping Becoming the region of bottom as the four limit cartridge units having bottom tube-like parts, reference 1b is to become four limits after stamping The region of multiple (four) longitudinal wall of cartridge unit, reference 1c is become four limit cartridge units after stamping multiple (four Individual) region of corner part.

Fig. 2 illustrates for having on the blank material 1 of each region 1a, 1b, the 1c shown in Fig. 1, to become bottom district The boundary of territory 1a and the region 1b becoming longitudinal wall, become the region 1b of longitudinal wall with the boundary of the region 1c becoming corner part and { detailed content is with reference to aftermentioned figure to form folding line respectively for the position of the region 1c substantially decile (two deciles) by becoming corner part 3 (b) } preparation mould 2.In fig. 2, reference 2a is and corresponding for the region 1a preparation mould becoming bottom The region of 2, reference 2b is the region of the preparation mould 2 corresponding with the region 1b becoming longitudinal wall, and reference 2c is The region of the preparation mould 2 corresponding with the region 1c becoming corner part.

Fig. 3 (a) is the A portion enlarged drawing of the blank material 1 before the preliminary forming shown in Fig. 1.It addition, Fig. 3 (b) is use figure Shown in 2 preparation mould 2 in the blank material 1 shown in Fig. 1 become bottom region 1a and the region becoming longitudinal wall The boundary of 1b, become the region 1b of longitudinal wall and the boundary of the region 1c becoming corner part and for the district of corner part will be become The position of territory 1c substantially decile (two deciles) forms the blank material 1 after folding line 1d, 1e, 1f (preliminary forming operation) respectively A portion axonometric chart.

Fig. 4 is the drift 3 during the formal shaping illustrating this embodiment 1, the blank material 1 after preliminary forming and punch die The schematic isometric of the position relationship of 4.

In the diagram, make by above-mentioned preliminary forming operation be formed the blank material 1 of folding line 1d, 1e, 1f with this hair The mode that the shape of base material 1 is corresponding is arranged on punch die 4{ detailed content with reference to aftermentioned Fig. 5 (b) } join with drift 3{ detailed content According to aftermentioned Fig. 5 (a) } between and carry out stamping, be consequently formed the four limit cartridge units as there being bottom tube-like parts and (formally shape Operation).It should be noted that need not specially use blank holder in this formal forming process.

Punch die 4 shown in Fig. 4 is formed respectively with blank material 1 become bottom region 1a, become longitudinal wall Region 1b and become bottom surface 4a corresponding for region 1c, medial surface 4b and the corner part 4c of corner part.Additionally, at punch die 4 Corner part 4c is provided with groove 4f, this groove 4f overlook in time being formed at stamping under from the adjacent longitudinal wall 1b of four limit cartridge units that The flank 1g{ stretched out the most laterally is with reference to aftermentioned Fig. 6 (d) }.

It is formed with the drift shown in the blank material 1 of folding line 1d, 1e, 1f, Fig. 5 according to by above-mentioned preliminary forming operation Gap { thickness 1mm+ (the thickness of blank material 1 of blank material 1 between 3 and the detail shape of punch die 4, drift 3 and punch die 4 The 20%=0.2mm of 1mm)=1.2mm}, lubricant (be assumed to steel plate clean oil) and coefficientoffrictionμ=0.14, use General dynamic simulation software PAM-STAMP calculates the blank after the preliminary forming implemented in the case of described formal shaping The deformation state (result of calculation is shown in Fig. 6 as deformation state figure) of material 1.It should be noted that computation model uses 1/4 symmetric condition.

Fig. 6 is the deformation state figure illustrating above-mentioned result of calculation, and (a) illustrates that (that is, drift 3 is positioned at bottom from lower dead center Position) deviate the position (referred to as lower dead center 70mmUP) of 70mm upward, (b) illustrates lower dead center 50mmUP, and (c) only illustrates down Point 20mmUP, and (d) illustrate the deformation state of the blank material 1 after the preliminary forming at lower dead center.It can thus be appreciated that formally become Shape operation is the most stably carried out.In Fig. 6 (d), know and formed well by adjoining from four limit cartridge units at corner part 1c Longitudinal wall 1b stretch out the most laterally turn back for a pair flange constitute flank 1g.I.e., it is not necessary to corner part 1c is carried out drawing Shape, be only bent and deformed and just can form four limit cartridge units.Therefore, even if the forming height of four limit cartridge units uprises, pin The drawing resistance of blank material 1 also will not be increased, in other words, it is not necessary to the deflection increasing each several part just can obtain crack-free Four limit cartridge units (having bottom tube-like parts).It should be noted that this flank 1g under side-looking along with from bottom 1a towards longitudinal wall The open side of 1b and increase, and prolong towards outside from the open end of flank 1g under being also not located at overlooking on flank 1g Stretch prominent flange.

In present embodiment 1, illustrate to be formed from the adjacent longitudinal wall 1b of four limit cartridge units each other at corner part 1c Between the example of a flank 1g that stretches out laterally, but be not limited to this.Such as, for being formed from four cylinder portions, limit at corner part 1c The situation of the flank that the adjacent longitudinal wall 1b of part stretches out to inner side to each other, as long as using the turning of lateral surface at drift 3 Corner arranges slotted structure.It addition, in present embodiment 1, illustrate as there being bottom tube-like parts to form four limits The example of cartridge unit, but it is not limited to this.For instance, it is possible to be widely used in the cylinder portion of more than triangle cartridge unit and pentagon Part etc..It addition, in present embodiment 1, illustrate that a flank 1g is at longitudinal wall 1b adjacent from overlooking for corner part 1c each other Between the example that stretches out laterally, but be not limited to this.Such as, it is also possible to two or more is set at corner part 1c and adjoins from overlooking Longitudinal wall 1b the most laterally or the flank (detailed content is with reference to aftermentioned embodiment 2 and 3) that stretches out of inner side.It addition, In present embodiment 1, as blank material 1, illustrate to use the example of 6000 line aluminium alloys, but be not limited to this.Such as, also Can use 6000 be beyond aluminium alloy, more difficult to machine material i.e. titanium alloy, common steel.It addition, this flank 1g can also Obtain the advantage played a role as the diastrophic rib for corner part 1c.

As above, according to the structure of the present invention, not only need not two moulds (punch die and drift) be implemented respectively in pairs Particular job, it is also possible to use can shape from the mass-produced cold stamping of blank material, only just shaped by general curved Can be formed forming height higher have bottom tube-like parts.

(embodiment 2)

Fig. 7 be to be configured to embodiments of the present invention 2 have bottom tube-like parts before blank material illustrate Diagrammatic top view, Fig. 8 is the enlarged partial isometric view of the preparation mould of this embodiment 2, and Fig. 9 is this embodiment 2 The partial enlarged drawing of the blank material before and after preliminary forming, (a) is the B portion enlarged drawing before the preliminary forming shown in Fig. 7, and (b) is Axonometric chart after preliminary forming, Figure 10 is drift during the formal shaping illustrating this embodiment 2 and the blank after preliminary forming The schematic isometric of the position relationship of material and punch die, Figure 11 be illustrate this embodiment 2 formal shape in blank material The deformation state figure of the deformation state of material.It should be noted that in the present embodiment, to the composition identical with embodiment 1 The reference that key element mark is identical, omits detailed description, describes difference the most in detail.

In the figure 7, polish is premised on the region 1c becoming corner part at blank material 1 forms two flanks Shape.That is, after formally shaping (stamping), it is longitudinal wall 1b and two under side-looking by blank material 1 polish The shape (with reference to Fig. 9 (a)) that the height of flank is identical.

Fig. 8 is shown on the blank material 1 with each region 1a, 1b, 1c shown in Fig. 7, to become bottom region 1a Boundary with the region 1b becoming longitudinal wall, become the region 1b of longitudinal wall with the boundary of the region 1c becoming corner part and for The position becoming the region 1c substantially decile (quartering) of corner part is formed respectively folding line { detailed content is with reference to Fig. 9 (b) } Preparation mould 5.In fig. 8, reference 5a is the district of the preparation mould 5 corresponding with the region 1a becoming bottom Territory, reference 5b is the region of the preparation mould 5 corresponding with the region 1b becoming longitudinal wall, and reference 5c is and becomes The region of the preparation mould 5 corresponding for region 1c of corner part.

Figure 10 is the drift 3 during the formal shaping illustrating embodiment 2, the blank material 1 after preliminary forming and punch die 4 The schematic isometric of position relationship.

In Fig. 10, the blank material 1 of folding line 1d, 1e and three 1f will be formed with by above-mentioned preliminary forming operation It is arranged between punch die 4 and drift 3 in the way of corresponding with the shape of this blank material 1 and carries out stamping, being consequently formed As the four limit cartridge units (formal forming process) having bottom tube-like parts.It should be noted that in this formal forming process not Need specially to use blank holder.

Be provided with two groove 4f at the corner part 4c of the punch die 4 shown in Figure 10, when this groove 4f is used for being formed at stamping Two the flank 1g{ stretched out the most laterally from the adjacent longitudinal wall 1b of four limit cartridge units under vertical view are with reference to Figure 11 described later (d)}。

It is formed shown in the blank material 1 of folding line 1d, 1e and three 1f, Figure 10 according to by above-mentioned preliminary forming operation Drift 3 and punch die 4, drift 3 and punch die 4 between gap { thickness 1mm+ (the thickness 1mm of blank material 1 of blank material 1 20%=0.2mm)=1.2mm}, lubricant (be assumed to steel plate clean oil) and coefficientoffrictionμ=0.14, use general Dynamic simulation software PAM-STAMP calculate the blank material 1 after the preliminary forming implemented in the case of described formal shaping Deformation state (result of calculation is shown in Figure 11 as deformation state figure).It should be noted that computation model use 1/4 right Title condition.

Figure 11 is the deformation state figure illustrating above-mentioned result of calculation, and (a) illustrates lower dead center 70mmUP, and (b) illustrates lower dead center 50mmUP, (c) illustrates lower dead center 20mmUP, and (d) illustrates the deformation shape of the blank material 1 after the preliminary forming at lower dead center State.Thus will also realize that formal forming process is the most stably carried out.In Figure 11 (d), it is known that in two positions of corner part 1c It is formed well and is turned back what flange was constituted for a pair by stretch out the most laterally from the adjacent longitudinal wall 1b of four limit cartridge units Flank 1g.I.e., it is not necessary to corner part 1c is carried out drawing and forming, only it is bent and deformed and just can form four limit cartridge units.Therefore, Even if the forming height of four limit cartridge units uprises, the drawing resistance for blank material 1 also will not increase, in other words, it is not necessary to increases The deflection adding each several part just can obtain the four limit cartridge units (having bottom tube-like parts) without fracture.But, in present embodiment 2 In the case of, owing to being provided with multiple flank 1g, therefore on the mould the least for turning R (drift 3 and punch die 4) under overlooking In the groove 4f of the corner part 4c of punch die 4, the gap enlargement between drift 3 and punch die 4.Accordingly, there exist stamping after flank The problem that the shape of 1g cannot be formed sharply as the shape of embodiment 1.Such flank 1g is formed wanting In the case of more sharp-pointed, need embodiment 3 as be described hereinafter like that and turning R is correspondingly set to slightly by the quantity of flank 1g Greatly.It addition, at above-mentioned two flank 1g under side-looking along with being gradually increased towards the open side of longitudinal wall 1b from bottom 1a, and And under being also not provided with on flank 1g overlooking at two, extend prominent flange towards outside from the open end of flank 1g.

Be provided with at two in the case of flank 1g at corner part 1c as present embodiment 2, with as embodiment 1 that Sample is provided with the situation of flank 1g at corner part 1c and compares, it is possible to reduce the overhang of flank 1g.It is therefore preferable that be arranged on The quantity of the flank 1g of corner part 1c be at two more than.But, if increasing the flank 1g being arranged at corner part 1c as described above Quantity, then the end in the direction, inner side of the corner part 4c towards punch die 4 in groove 4f is overlapping, at such position, drift 3 with Gap enlargement between punch die 4, therefore the shape of flank 1g cannot be stably formed.If it addition, the width of constriction groove 4f and make The described end of groove 4f is the most overlapping, then the volume of the part bearing deformation load also diminishes, and the intensity of punch die 4 guarantees to become class Topic.If wanting to guarantee to a certain extent the width of groove 4f, form more sharp-pointed flank 1g, then necessary and rib according to requirement The radius of curvature R of corner part 4c is correspondingly set as bigger by the quantity of portion 1g.In other words, if the quantity of flank 1g is very few, Then flank 1g increases from corner part 1c towards the overhang in inner side or outside, if the quantity of flank 1g is too much, then overlooks lower turning The radius of curvature R of portion 4c increases.Here, turning R smaller from the viewpoint of shape restriction, inner capacities guarantee is (bent Rate radius R is of about below 80mm), and, in order to obtain flank 1g towards little four limits of the overhang of outside product or inner side Cartridge unit (has bottom tube-like parts), the quantity of the flank 1g being preferably disposed on corner part 1c be everywhere below.

As above, according to the structure of the present invention, not only need not two moulds (punch die and drift) be implemented respectively in pairs Particular job, it is also possible to use can shape from the mass-produced cold stamping of blank material, only shaped by general curved What formation forming height was higher has bottom tube-like parts.

(embodiment 3)

Figure 12 be to be configured to embodiments of the present invention 3 have bottom tube-like parts before blank material illustrate Diagrammatic top view, Figure 13 is the enlarged partial isometric view of the preparation mould of this embodiment 3, and Figure 14 is this embodiment 3 Preliminary forming before and after the partial enlarged drawing of blank material, (a) is the C portion enlarged drawing before the preliminary forming shown in Figure 12, (b) Being the axonometric chart after preliminary forming, Figure 15 is drift during the formal shaping illustrating this embodiment 3, the blank after preliminary forming The schematic isometric of the position relationship of material and punch die, Figure 16 is the detail shape size of the drift shown in Figure 15 and punch die Figure, Figure 17 be illustrate this embodiment 3 formal shape in the deformation state figure of deformation state of blank material.Need explanation , in the present embodiment, the reference identical to the element mark identical with embodiment 1 and 2, omit in detail Thin explanation, describes difference the most in detail.

In fig. 12, polish is premised on the region 1c becoming corner part at blank material 1 forms four flanks Shape.That is, after formally shaping (stamping), it is longitudinal wall 1b and two under side-looking by blank material 1 polish The height of individual flank becomes identical shape (with reference to Figure 14 (a)).

Figure 13 illustrate for have on the blank material 1 of each region 1a, 1b, the 1c shown in Figure 12, become bottom The boundary of region 1a and the region 1b becoming longitudinal wall, become the region 1b and the region 1c becoming corner part of longitudinal wall boundary, with And { detailed content is with reference to Figure 14 for the position of the region 1c substantially decile (eight equal parts) becoming corner part is formed folding line respectively (b) } preparation mould 6.In fig. 13, reference 6a is and corresponding for the region 1a preparation mould becoming bottom The region of 6, reference 6b is the region of the preparation mould 6 corresponding with the region 1b becoming longitudinal wall, and reference 6c is The region of the preparation mould 6 corresponding with the region 1c becoming corner part.

Figure 15 is the drift 7 during the formal shaping illustrating embodiment 3, the blank material 1 after preliminary forming and punch die 8 The schematic isometric of position relationship.

In fig .15, the blank material 1 of folding line 1d, 1e and seven 1f will be formed with by above-mentioned preliminary forming operation Punch die 8{ detailed content it is arranged on reference to aftermentioned Figure 16 (b) in the way of corresponding with the shape of this blank material 1 } detailed with drift 7{ Thin content is with reference to aftermentioned Figure 16 (a) } between and carry out stamping, be consequently formed as the four limit cartridge units having bottom tube-like parts (formal forming process).It should be noted that need not specially use blank holder in this formal forming process.

When the inner side of the corner part 8c of the punch die 8 shown in Figure 16 (b) is formed as overlooking, inscribed circle radius of curvature is R1= The shape of 66.9mm, is provided with four groove 8f at this corner part 8c, from four under overlooking when this groove 8f is used for being formed at stamping Four flank 1g{ that the adjacent longitudinal wall 1b of limit cartridge unit stretches out the most laterally are with reference to aftermentioned Figure 17 (e) }.It addition, in punching The corner part 7c of the lateral surface of 7, is formed as having the inscribed circle of the corner part 8c with punch die 8 corresponding and overlook lower curvature partly Footpath is the shape of the curved surface of R2=65.7mm.Here, R1 > R2.It addition, by inscribed circle radius of curvature R 1 and radius of curvature R 2 The drift 7 that represents of difference and punch die 8 between gap be 1.2mm.In formal forming process, it is not accompanied by drawing and forming, only passes through Bending forming is formed with bottom tube-like parts, and therefore the thickness of slab change of blank material 1 is considerably less.Therefore, described gap can become Shape to blank material 1 thickness of slab about 100%.If it should be noted that described excesssive gap, then the shape of flank 1g will not Formed sharply, therefore, even if described gap enlargement is preferably also less than the 200% of the thickness of slab of blank material 1.It addition, as above State and have bottom tube-like parts compared with common drawing and forming parts, as raw-material by what formal forming process was formed like that The thickness of slab change of blank material 1 is considerably less.That is, in the case of carrying out common drawing and forming, the thickness of slab of blank material 1 is in punching Reduce near the shoulder R of 7, increase because material flows in the shoulder R side of punch die 8, if with produce the shoulder that local thickness of slab reduces Deisgn product performance accordingly near portion R, then the weight of molded component becomes slightly to weigh.The manufacturer including formal forming process In the case of method, due to less with the thickness of slab change shaping blank material 1 together, therefore compared with described drawing and forming, also Have guarantee light-duty in the case of can also ensure that the intensity of product and the advantage of rigidity.

It is formed shown in the blank material 1 of folding line 1d, 1e and seven 1f, Figure 15 according to by above-mentioned preliminary forming operation Drift 7 and punch die 8, drift 7 and punch die 8 between { the thickness 1mm+ of blank material 1 be (the thickness 1mm's of blank material 1 in gap 20%=0.2mm)=1.2mm}, lubricant (be assumed to steel plate and clean oil) and coefficientoffrictionμ=0.14, use general Dynamic simulation software PAM-STAMP calculating implements the blank material 1 after the preliminary forming in the case of described formal shaping Result of calculation (is shown in Figure 17 as deformation state figure) by deformation state.It should be noted that computation model uses 1/4 symmetry Condition.

Figure 17 is the deformation state figure illustrating above-mentioned result of calculation, and (a) illustrates lower dead center 70mmUP, and (b) illustrates lower dead center 50mmUP, (c) illustrates lower dead center 20mmUP, and (d) illustrates lower dead center 10mmUP, and (e) illustrates the preliminary forming at lower dead center After the deformation state of blank material 1.Understanding accordingly, compared with embodiment 1,2, formal forming process is more stably carried out. In Figure 17 (e), it is known that be formed well everywhere by from the adjacent longitudinal wall 1b of four limit cartridge units to each other at corner part 1c A pair stretched out laterally turn back flange constitute flank 1g.I.e., it is not necessary to corner part 1c is carried out drawing and forming, only by bending Deformation just can be more easily formed four limit cartridge units.Therefore, even if the forming height of four limit cartridge units uprises, for blank material The drawing resistance of material 1 also will not increase, in other words, it is not necessary to the deflection increasing each several part is just obtained in that the four limit cylinders without fracture Parts (have bottom tube-like parts).It should be noted that the above-mentioned 1g of flank everywhere under side-looking along with from bottom 1a towards longitudinal wall 1b Open side and be gradually increased, and the flank 1g everywhere also be not provided with overlook under from the open end of flank 1g towards outside Extend prominent flange.

It is being provided with everywhere in the case of flank 1g at corner part 1c as present embodiment 3, with present embodiment 2 phase Ratio, the overhang of flank 1g is less.It addition, about the intensity of corner part 1c, be also that the situation of present embodiment 3 is than this embodiment party The situation of formula 2 is bigger.

As above, according to the structure of the present invention, not only need not two moulds (punch die and drift) be implemented respectively in pairs Particular job, it is also possible to use can shape from the mass-produced cold stamping of blank material, only shaped by general curved What formation forming height was higher has bottom tube-like parts.

It addition, in the formal forming process of present embodiment 3,

The adjacent longitudinal wall 1b from four limit cartridge units (having bottom tube-like parts) it is formed under vertical view when carrying out stamping In the case of the more than one flank 1g stretched out the most laterally, the corner part at the bottom surface 8a of punch die 8 arranges groove, or Person,

The adjacent longitudinal wall 1b from four limit cartridge units (having bottom tube-like parts) it is formed under vertical view when carrying out stamping To each other in the case of the more than one flank 1g that inner side is stretched out, the corner part in the bottom surface of drift 7 arranges groove,

It is possible to be more prone to and be stably formed four limit cartridge units (having bottom tube-like parts).

It addition, be respectively formed at the groove of the corner part of the corner part 8c of the bottom surface 8a of punch die 8 or the bottom surface of drift 7 from respectively turning The center in corner is radially formed, and thus the forming position of flank 1g is stable further, is more prone to and is stably formed four Limit cartridge unit (has bottom tube-like parts).

It addition, prolong laterally by arranging the lateral surface in addition to corner part 7c from drift 7 in the upper end side of drift 7 Stretch prominent flange (not shown), thereby, it is possible to simultaneously and do not produce based on flexural deformation at flank 1g with stamping The deformation ground setting of resistance extends prominent from the open end of the longitudinal wall 1b of four limit cartridge units (having bottom tube-like parts) towards outside Flange (not shown).

Claims (11)

1. having bottom tube-like parts, it has bottom and the multiple longitudinal walls erected from this bottom peripheral edge, it is characterised in that
This has bottom tube-like parts by blank material is carried out stamping forming, and this has bottom tube-like parts to have with described Multiple corner parts that bottom and adjacent described longitudinal wall are integrally forming,
This corner part is provided with more than one described longitudinal wall adjacent from overlooking, and the most laterally or inner side is stretched out Flank,
This flank is made up of a pair flange that turns back, and this flange that turns back for a pair is with the region substantially decile by becoming described corner part Mode carries out turning back forming with the folding line being previously formed in described blank material for boundary,
The overhang towards outside or inner side of described flank under side-looking along with from described bottom towards the opening of described longitudinal wall Side and increase, and,
Described flank extends towards outside under being not disposed on overlooking prominent flange from the open end of described flank.
The most according to claim 1 have bottom tube-like parts, it is characterised in that
Described corner part overlook under in substantially arc-shaped, be formed at 2~4 at this corner part in substantially arc-shaped described in Flank.
The most according to claim 2 have bottom tube-like parts, it is characterised in that
In described bottom, it is formed with the flank stretched out towards outside or inner side from the described corner part in substantially arc-shaped respectively Correspondence, vertical view continuous print recess or protuberance down.
The most according to claim 3 have bottom tube-like parts, it is characterised in that
Being arranged at the recess of described bottom or protuberance under overlooking is radiation from the center of the described corner part in substantially arc-shaped Shape is formed.
The most according to any one of claim 1 to 4 have bottom tube-like parts, it is characterised in that
Described have bottom tube-like parts to be provided with the flange prominent towards outside extension from the open end of described longitudinal wall.
6. having a manufacture method for bottom tube-like parts, it has bottom tube-like parts described in the manufacturing claims 1, its feature It is,
Described manufacture method has a following operation:
Preliminary forming operation, in this preliminary forming operation, for have after stamping become described in have bottom tube-like parts The blank material in each region of bottom, multiple longitudinal wall and multiple corner part, use preparation mould becoming the described end The region boundary with the region becoming corner part that the region in portion with the boundary in the region becoming longitudinal wall, becomes described longitudinal wall, with And for the position of the region substantially decile becoming described corner part is formed folding line respectively;And
Formal forming process, in this formal forming process, makes to form blank material creasy by this preliminary forming operation It is arranged between punch die and drift in the way of corresponding with the shape of this blank material and carries out stamping, being consequently formed described There are bottom tube-like parts,
In this formal forming process,
It is formed under vertical view from the described adjacent described longitudinal wall having bottom tube-like parts the most outside when carrying out stamping In the case of the more than one flank that side is stretched out, the corner part at described punch die is provided with groove,
It is formed under vertical view from the described adjacent described longitudinal wall having bottom tube-like parts the most inside when carrying out stamping In the case of the more than one flank that side is stretched out, the corner part at the lateral surface of described drift is provided with groove.
The manufacture method having bottom tube-like parts the most according to claim 6, it is characterised in that
In described preliminary forming operation, form the position of folding line in order to the region substantially decile of described corner part will be become Quantity is 3~7.
8. according to the manufacture method having bottom tube-like parts described in claim 6 or 7, it is characterised in that
Being formed as inscribed circle radius of curvature under overlooking inside the corner part of described punch die is the shape of R1, the outside of described drift The corner part in face be formed as having corresponding with the inscribed circle of the corner part of described punch die and overlook under radius of curvature be the song of R2 The shape in face, is set as described hair by the gap between the described drift represented by the difference of described R1 and described R2 and described punch die More than the 100% and less than 200% of the thickness of slab of base material, here, R1 > R2.
The manufacture method having bottom tube-like parts the most according to claim 8, it is characterised in that
In described formal forming process,
It is formed under vertical view from the described adjacent described longitudinal wall having bottom tube-like parts the most outside when carrying out stamping In the case of the more than one flank that side is stretched out, the corner part in the bottom surface of described punch die is provided with groove,
It is formed under vertical view from the described adjacent described longitudinal wall having bottom tube-like parts the most inside when carrying out stamping In the case of the more than one flank that side is stretched out, the corner part in the bottom surface of described drift is provided with groove.
The manufacture method having bottom tube-like parts the most according to claim 9, it is characterised in that
The groove that corner part in the bottom surface of described punch die or the corner part of the bottom surface of described drift are respectively provided with is from each corner part Center is radially formed.
11. according to the manufacture method having bottom tube-like parts according to any one of claim 6 to 10, it is characterised in that
Upper end side at described drift is provided with and extends towards outside prominent from the lateral surface in addition to corner part of described drift The flange gone out.
CN201610055404.XA 2015-03-13 2016-01-27 Bottomed cylindrical component and method for manufacturing same CN105964754A (en)

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Application publication date: 20160928