CN2612477Y - Die assembly for controlling packing weld plate drown deeply and weld seam moved - Google Patents
Die assembly for controlling packing weld plate drown deeply and weld seam moved Download PDFInfo
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- CN2612477Y CN2612477Y CN 03212377 CN03212377U CN2612477Y CN 2612477 Y CN2612477 Y CN 2612477Y CN 03212377 CN03212377 CN 03212377 CN 03212377 U CN03212377 U CN 03212377U CN 2612477 Y CN2612477 Y CN 2612477Y
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- drawbead
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Abstract
The utility model relates to a processing technique for a part of a split welding plate in car industry, more specifically a die for controlling the drawn welding seam of a split welding plate to move. The utility model is composed of an upper die plate, a concave die, an edge pressing ring, a shim plate, a lower die plate and a drawn convex die. Blanks are clamped between the concave die and the edge pressing ring; the lower side of the edge pressing ring is orderly provided with the shim plate and the lower side plate; a drawn rib in the shape of a lug boss is arranged on any surface of the concave die opposite to the edge pressing ring, is positioned on a straight line with small radial pulling stress close to a blank thick plate side and the welding seam, and is parallel to the welding seam. The utility model can control the welding seam to move effectively and ensure the forming quality of a stamping piece.
Description
Technical field
The utility model relates to the welding plate part processing technology on the auto industry, specifically a kind of mould of controlling welding plate pull and stretch weld movement.
Background technology
In the epoch of current industrialization develop rapidly, the improvement of natural environment is a very important problem.Based on the consideration of environmental protection, the numerous notices of people are all focused on and how to be saved on the natural resources at present.As communications and transportation is the important step of energy resource consumption, and for transportation system, the extensive use of a large amount of consumption of fuel, the excessive discharging of tail gas and various materials all can influence natural environment.For this reason, the auto-maker proposes new departure and is intended to reduce car weight, reduces manufacturing cost, enhances product performance.Wherein welding plate is one of important method that addresses these problems.
So-called welding plate is meant the preceding plate blank that the plate material of different-thickness, unlike material or different surfaces coating is welded together to form of drawing.In general, an automobile component may be made up of several parts, and different piece has different requirements, requires anticorrosion, high strength or high rigidity as some parts, and other parts then do not have very high request.Make such parts two kinds of methods are arranged usually: 1) parts decomposition method specifically is the punching press respectively of each part, welds together the method for molded component then; 2) parts integrated approach just carries out the method for drawing parts with a plate.Clearly, decomposition method has increased the washability of material, for example: steel plate grade, types of coatings, material thickness etc., different piece can loss of weight with the material of different-thickness or varying strength, and different piece can make full use of waste material and then saving fund with the material of different-thickness or different coating type, but has also increased the assembly fee usefulness of punching press and die cost, each several part combination, the form fit problem of each several part and the extra flange weight of reserving for spot welding because of more mould of needs and punching course; The parts integrated approach is just in time opposite, and each part must be with identical steel plate grade, types of coatings and material thickness, does not need part just to seem unnecessary to wherein some like this, has caused waste; In addition, the increase shaping difficulty that the parts integrated approach may be potential.Use the welding plate, not only absorbed the advantage of two kinds of methods, and can overcome the above-mentioned all problems except that the shaping problem.In addition, varying strength or thickness of material are applied to can simplify on the parts overall structure of vehicle, so that can remove some structures and fixture, as reinforcement, have also reduced number of components and assembly process.
But the welding plate is exactly the weld movement problem in the distinct issues of industrial application.The square work-piece box bottom weld seam of welding plate pull and stretch is bigger to slab side shifting distance, and the sidewall weld seam is bigger to thin plate side shifting distance.Because the sheet thickness difference, cause plate suffered pulling force difference in shaping, the deformation state of plate each point is inhomogeneous, has influenced the serviceability of plate, therefore the current problem that mainly solves of control welding plate deep-drawing deformation weld movement problem.
The utility model content
The purpose of this utility model provides a kind of method that can improve the control welding plate pull and stretch weld movement of stamping parts forming quality.
In order to achieve the above object, the technical solution of the utility model is: by cope match-plate pattern, and die, blank holder, backing plate, lower bolster, the pull and stretch punch is formed, and blank is interposed in the middle of die and the blank holder, and the blank holder below is followed successively by backing plate and lower bolster; It is characterized in that: on the die arbitrary surface relative, boss shape drawbead is set with blank holder, near blank slab side, also near the less straight line position of the radially tension of weld seam, and also parallel with weld seam;
The shape that on the drawbead structure, reduces highly gradually from outside to inside, and the top, cross section is the circular shape that seamlessly transits; Described drawbead top highest point is 2～5mm to distance between the surface of die that drawbead is set or blank holder; Described drawbead bottom width is greater than top width;
Described drawbead concrete structure can for: on the relative arbitrary surface of die or blank holder, drive two keyways near the slab side radial symmetric in the blank, the keyway edge is provided with fillet; Other establishes two keys, and two keys are put into described two keyways respectively, forms protruding drawbead at die or blank holder surface; Also open two grooves with the drawbead corresponding position on blank holder that does not have drawbead or die, its shape and size are corresponding with the shape and size of drawbead; Described drawbead concrete structure can be an integral structure with die or blank holder, specifically is on the die arbitrary surface relative with blank holder, establishes two integral type projectioies as drawbead near the slab side radial symmetric in the blank; Spline with the drawbead corresponding position on blank holder that does not have drawbead or die, its shape and size are corresponding with the shape and size of drawbead, and its keyway edge is provided with fillet.
The utlity model has following advantage:
1. can control weld movement effectively.With the example that is made as of square work-piece, when drawbead not being set, the square work-piece box of pull and stretch bottom weld seam is bigger to slab side shifting distance, and the sidewall weld seam is bigger to thin plate side shifting distance.After employing the utlity model has the mould of drawbead structure, the square work-piece box of pull and stretch bottom weld seam reduced (reducing more than 50%) to slab side shifting distance; The sidewall weld seam obviously reduces (reducing more than 60%) to thin plate side shifting distance.
2. can guarantee the forming quality of stamping parts.In sheet forming, adopt the utility model will play a part following important: 1) can the balance plate in shaping suffered pulling force, improve the deformation state of plate each point, make distortion be tending towards even; 2) can also reduce the pressure of blank holder, improve the forming quality of stamping parts.The utility model drawbead mould can be used as a kind of important control device of control sheet forming in the large complicated stamping parts shaping.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the utility model experiment mould.
Fig. 2 is a B-B view among Fig. 1.
Fig. 3 is the shape and the blank partial sectional view of groove on key, keyway and the die on the blank holder among embodiment of the utility model.
The bond structure front view that Fig. 4 uses for set drawbead among Fig. 3.
Fig. 5 is the A-A view of Fig. 4.
Fig. 6 reaches the blank partial sectional view on blank holder, the die among another embodiment of the utility model.
Fig. 7 a is that embodiment of the utility model is to square work-piece result of implementation pictorial diagram (not adopting drawbead).
Fig. 7 b is that embodiment of the utility model is to square work-piece result of implementation pictorial diagram (employing drawbead).
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, by cope match-plate pattern 1, die 2, blank 3, blank holder 4, backing plate 5, lower bolster 6, pull and stretch punch 7 is formed, it is middle with blank holder 4 that blank 3 is interposed in die 2, and blank holder is followed successively by backing plate 5 and lower bolster 6 for 4 times, and pull and stretch punch 7 is from moving down, make blank all enter die, process square box shape piece; The utility model is provided with drawbead 8 on the blank holder 4, near blank 3 slab sides, also near the less straight line position of the radially tension of weld seam, and it is parallel with weld seam, excessive in order to prevent the pull and stretch resistance, and make blank 3 by drawing crack, on drawbead 8 structures, adopted the shape that reduces highly gradually from outside to inside.
In order to control weld movement, drawbead 8 structures that are provided with on the present embodiment experiment mould are: the slab side at blank holder 4 upper surfaces, close blank 3 is driven two keyways of radial symmetric, referring to Fig. 2.Other establishes two keys (referring to Fig. 4,5), and two keys are put into two keyways respectively, and in height exposes blank holder 4 upper surface parts, forms the drawbead 8 of projection, referring to Fig. 3.At die 2 lower surfaces, also drive two keyways in drawbead 8 corresponding positions, its shape and size are corresponding with the shape and size that key is exposed at blank holder 4 upper surface portion (being drawbead 8), drawbead 8 is shaped as the arc shape with smooth excessiveness function that reduces highly gradually from outside to inside, and described drawbead 8 top highest points are 2mm to distance between the surface of the blank holder 4 that drawbead 8 is set; And be provided with fillet at die 2 keyway edges, to prevent scraping blank 3 when the pull and stretch.More than referring to Fig. 2～5.
In drawing process, the course of work is as follows:
1) will put into keyway (or muscle groove) as the key of drawbead 8;
2) will weld slab material 3 and put on the blank holder 4, and the location;
3) die 2 begins to move down, and blank 3 is compressed, and apply pressure-pad-force, and pressure-pad-force is controlled on the predetermined value;
4) punch 7 moves on beginning, and makes blank 3 deep-drawing deformations, enters die 2 fully until blank 3, processes square box shape piece.
The utility model principle is: because the plasticity of thick blank relative thin is better, establishing drawbead 8 in welding thickness of slab blank one side mainly is to increase thick stock material side flange district tension, reduces circumferential compressive force, and then the control weld movement;
Adopt the utility model can improve plate suffered pulling force in shaping, improve the deformation state of plate each point, make it to be tending towards even; Can also reduce the pressure of blank holder, improve the forming quality of stamping parts.Concrete experimental data: plate is circular, and diameter is 186mm, is formed by 0.8mm and the butt welding of the thick 08Al steel plate of 1.5mm with method for laser welding, and weld seam is in the centre, and the performance parameter of used steel plate (08Al) is as shown in table 1.
Table 108Al plate property parameter
| The trade mark | Thickness/(mm) | Tensile strength sigma b/Mpa | Yield strength σ s/Mpa | Modulus of elasticity E/Mpa | Hardenability value n | Poisson's ratio μ |
| 08A1 | 0.8 | 283 | 165 | 207000 | 0.21 | 0.28 |
| 1.5 | 357 | 250 | 207000 | 0.21 | 0.28 |
The result is an example with the square work-piece drawing shown in Fig. 7 a, 7b, the tensioning member when Fig. 7 a represents drawbead 8 not to be set, and the square work-piece box bottom weld seam of pull and stretch is bigger to slab side shifting distance, and the sidewall weld seam is bigger to thin plate side shifting distance.After Fig. 7 b represented to adopt the utility model drawbead 8, the square work-piece box of pull and stretch bottom weld seam reduced to slab side shifting distance, compares with drawbead 8 is not set, and reduces more than 50%; The sidewall weld seam obviously reduces to thin plate side shifting distance, compares with drawbead 8 is not set, and reduces more than 60%.
In a word, the utility model can be controlled weld movement effectively, thereby realizes welding plate drawing and forming, improves the forming quality of stamping parts, has improved productivity ratio, reduces cost.
Difference from Example 1 is:
Present embodiment is provided with drawbead 8 on mould structure is: key and blank holder 4 are made of one, promptly on blank holder 4 surfaces, establish two integral type projectioies as drawbead 8 near the slab side radial symmetric in the blank; Described drawbead 8 top highest points are 5mm to distance between the surface of the blank holder 4 that drawbead 8 is set, and the top, cross section is the circular shape that seamlessly transits, on the die 2 that does not have drawbead 8, spline with drawbead 8 corresponding positions, its shape and size are corresponding with the shape and size of drawbead 8, at the keyway edge of die 2 fillet are set.Using method is with example 1, referring to Fig. 6.Can make mould structure simple like this.
Difference from Example 1 is:
Described drawbead 8 concrete structures can for: at die 2 lower surfaces, drive two keyways near the slab side radial symmetric in the blank; Other establishes two keys, and as drawbead 8, described drawbead 8 bottom widths are greater than top width, and its top highest point is 3mm to distance between the surface of the die 2 that drawbead 8 is set; Put into two described keyways after two keys are inverted respectively, form the drawbead of projection at die 2 lower surfaces; Also open two grooves at blank holder 4 upper surfaces that do not have drawbead and drawbead 8 corresponding positions, its shape and size are corresponding with the shape and size of drawbead, and its groove edge is provided with fillet.
Difference from Example 3 is:
Described drawbead concrete structure can be an integral structure with die 2, specifically is at die 2 lower surfaces, establishes two integral type projectioies as drawbead 8 near the slab side radial symmetric in the blank; Upper surface and drawbead 8 corresponding positions at the blank holder 4 that does not have drawbead 8 spline, and its shape and size are corresponding with the shape and size of drawbead 8, at the keyway edge of blank holder 4 fillet are set.
Claims (6)
1. control the mould that welds plate pull and stretch weld movement for one kind, by cope match-plate pattern, die, blank holder, backing plate, lower bolster, the pull and stretch punch is formed, and blank is interposed in the middle of die and the blank holder, and the blank holder below is followed successively by backing plate and lower bolster; It is characterized in that: on the die arbitrary surface relative, boss shape drawbead is set with blank holder, near blank slab side, also near the less straight line position of the radially tension of weld seam, and also parallel with weld seam.
2. according to the mould of the described control welding of claim 1 plate pull and stretch weld movement, it is characterized in that: the shape that on the drawbead structure, reduces highly gradually from outside to inside, and the top, cross section is the circular shape that seamlessly transits.
3. according to the mould of the described control welding of claim 1 plate pull and stretch weld movement, it is characterized in that: described drawbead top highest point is 2～5mm to distance between the surface of die that drawbead is set or blank holder.
4. according to the mould of the described control welding of claim 1 plate pull and stretch weld movement, it is characterized in that: described drawbead bottom width is greater than top width.
5. weld the mould of plate pull and stretch weld movement according to the described control of one of claim 1～4, it is characterized in that: described drawbead concrete structure can for: on the relative arbitrary surface of die or blank holder, drive two keyways near the slab side radial symmetric in the blank, the keyway edge is provided with fillet; Other establishes two keys, and two keys are put into described two keyways respectively, forms protruding drawbead at die or blank holder surface; Also open two grooves with the drawbead corresponding position on blank holder that does not have drawbead or die, its shape and size are corresponding with the shape and size of drawbead.
6. weld the mould of plate pull and stretch weld movement according to the described control of one of claim 1～4, it is characterized in that: described drawbead concrete structure can be an integral structure with die or blank holder, specifically is on the die arbitrary surface relative with blank holder, establishes two integral type projectioies as drawbead near the slab side radial symmetric in the blank; Spline with the drawbead corresponding position on blank holder that does not have drawbead or die, its shape and size are corresponding with the shape and size of drawbead, and its keyway edge is provided with fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03212377 CN2612477Y (en) | 2003-04-04 | 2003-04-04 | Die assembly for controlling packing weld plate drown deeply and weld seam moved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03212377 CN2612477Y (en) | 2003-04-04 | 2003-04-04 | Die assembly for controlling packing weld plate drown deeply and weld seam moved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2612477Y true CN2612477Y (en) | 2004-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03212377 Expired - Fee Related CN2612477Y (en) | 2003-04-04 | 2003-04-04 | Die assembly for controlling packing weld plate drown deeply and weld seam moved |
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| CN (1) | CN2612477Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961744A (en) * | 2009-07-23 | 2011-02-02 | 本田技研工业株式会社 | The manufacturing process and the device thereof of welding plate |
| CN102303063A (en) * | 2011-06-28 | 2012-01-04 | 哈尔滨工业大学 | Weld-line movement-controlled tailor-welded blank stamp-forming device |
-
2003
- 2003-04-04 CN CN 03212377 patent/CN2612477Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961744A (en) * | 2009-07-23 | 2011-02-02 | 本田技研工业株式会社 | The manufacturing process and the device thereof of welding plate |
| CN101961744B (en) * | 2009-07-23 | 2013-02-27 | 本田技研工业株式会社 | Method and apparatus of forming tailored blank plate |
| CN102303063A (en) * | 2011-06-28 | 2012-01-04 | 哈尔滨工业大学 | Weld-line movement-controlled tailor-welded blank stamp-forming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |