CN104438839A - Composite die - Google Patents
Composite die Download PDFInfo
- Publication number
- CN104438839A CN104438839A CN201410665786.9A CN201410665786A CN104438839A CN 104438839 A CN104438839 A CN 104438839A CN 201410665786 A CN201410665786 A CN 201410665786A CN 104438839 A CN104438839 A CN 104438839A
- Authority
- CN
- China
- Prior art keywords
- die
- forming cavity
- composite
- forming
- punch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
- B21D45/006—Stripping-off devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to a composite die. The composite die comprises an upper die base and a lower die base which are arranged oppositely. The upper die base is provided with a male die. The lower die base is provided with a female die. A forming cavity is formed in the center of the female die. A pressurizing cavity used for being connected with input of external hydraulic oil is formed in the male die. A protruding block is arranged on the lower end face of the male die. The upper end of the forming cavity in the female die is of a horn mouth shape. The lower end of the forming cavity is of an arc structure protruding outwards. The surface and the bottom of the forming cavity are wrapped by a steel ball layer. The periphery side of the female die is provided with an edge pressing ring fixed on the lower die base. A discharging female die is arranged outside the edge pressing ring and provided with a discharging plate. The composite die has the advantages that stress is uniform, the forming limit and quality of materials are improved, the machining process is simplified, and wall changing machining can be achieved.
Description
Technical field
The present invention relates to technical field of mold, particularly a kind of composite die.
Background technology
Punch process in machining occupies an important position in the processing industry of national economy.The application of sheet metal component is extremely extensive, and be deep into manufacturing various aspects, sheet material forming realizes mainly through diel.Adopt Sheet Metal Forming Technology, have that precision is high, efficiency is high, quality is good, cost-saving, save the series of advantages such as material and the energy.
The mold cavity configuration of existing mould is complicated, overall weight is large, the shortcoming that machining amount is large in stamping forming process, fabrication cycle long, investment is large, cost is high, existing metal buckets shell, the such as upper and lower thickness of its sidewall of battery cell case otherwise identical, becomes wall scope generally between 0.05-0.1mm, and market demand particular/special requirement, become between wall Wall-Thickness Difference to 0.5-0.6, general technology and production mould can not meet this quality requirements.Existing production mould is in sheet metal drawing process, existing drawing process work step is various, work step concentricity, wall thickness change is uneven, also can due to discontinuity in punching course, thus can material deformation be caused, to break, so that product rejection, in addition due in process of production, waste material can not get effective recovery and removing, thus causes environmental pollution.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of uniform force, improve forming limit and the quality of material, simplified processing process, the composite die of wall processing can be become.
Realize technical scheme of the present invention as follows:
A kind of composite die, comprise the upper bolster and die shoe that are oppositely arranged, upper bolster is provided with punch, die shoe is provided with die, die center is provided with forming cavity, the booster cavity for connecting the input of outer liquid force feed is provided with in described punch, punch lower surface is provided with projection, forming cavity upper end on described die is set to horn mouth shape, forming cavity lower end is set to arcuate structure outwardly, forming cavity surface and bottom are coated with one deck steel ball layer, the all sides of die are provided with and are fixed on blank holder on die shoe, blank holder outside is provided with blanking die, blanking die is provided with stripper.
Be connected by motion bar between described upper bolster and die shoe, advantage is this motion bar is expansion link, can stretch when punching press, plays the effect of support and connection upper bolster and die shoe on the one hand, can be that upper bolster carries out stable moving up and down on the other hand, thus effectively work.
Described steel ball layer thickness is set to 0.3mm-0.8mm, and as preferably, the present invention selects 0.5mm, and advantage is like this in forming process, because steel ball layer is squeezed, interactional more obvious between steel ball, for mould forming effect advantageously.
Have employed above-mentioned scheme, by the booster cavity in outer liquid force feed input punch, on the basis of existing forcing press, further can improve the pressure to profiled member, simultaneously, on the basis stamping to profiled member first time, secondary pressurized is being carried out to profiled member, effectively can prevent the resilience of profiled member.The effective extruding to stamping can be realized, projection on punch is used for material to squeeze in the forming cavity of die, the horn mouth shape of forming cavity and arcuate structure can be used as once-forming and secondary forming, thus define a change wall crossover position, be conducive to dispersive stress like this, simplify drawing process, horn mouth shape and arcuate structure are level and smooth circular sliding slopes, are conducive to the smoothness improving drip molding surface; When stamping, material is pressed in the forming cavity of die by punch, and steel ball layer is squeezed and just can rolls to surrounding, in rolling process, the stress of material is changed, gradually evenly, improve the forming quality striking out shaped piece, reduce the stress of critical section, improve forming limit; Blank holder is effectively by edge of materials extrusion molding, blanking die can carry out spacing to punch on the one hand, waste material unnecessary in stamping process can be received on the other hand, prevent waste material from disorderly flying, pollute machine and surrounding enviroment, then by stripper, the waste material on blanking die is removed, time saving and energy saving, increase work efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of die in the present invention;
In accompanying drawing, 1 is upper bolster, and 2 is die shoe, and 3 is punch, and 4 is die, and 5 is booster cavity, and 6 is forming cavity, and 7 is blanking die, and 8 is stripper, and 9 is blank holder, and 10 is steel ball layer, and 11 is projection, and 12 is motion bar.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
As Fig. 1, a kind of composite die, comprise the upper bolster 1 and die shoe 2 that are oppositely arranged, upper bolster 1 is provided with punch 3, die shoe 2 is provided with die 4, die 4 center is provided with forming cavity 6, the booster cavity 5 for connecting the input of outer liquid force feed is provided with in described punch 3, punch 3 lower surface is provided with projection 11, forming cavity 6 upper end on described die 4 is set to horn mouth shape, forming cavity 6 lower end is set to arcuate structure outwardly, forming cavity 6 top and bottom are connected by level and smooth camber line, forming cavity 6 surface and bottom are coated with one deck steel ball layer 10, die 4 weeks sides are provided with and are fixed on blank holder 9 on die shoe 2, blank holder 9 outside is provided with blanking die 7, blanking die 7 is provided with stripper 8.
Be connected by motion bar 12 between described upper bolster 1 and die shoe 2, advantage is this motion bar is expansion link, can stretch when punching press, play the effect of support and connection upper bolster and die shoe on the one hand, can be that upper bolster carries out stable moving up and down on the other hand, thus effectively work.
Described steel ball layer 10 thickness is set to 0.3mm-0.8mm, and as preferably, the present invention selects 0.5mm, and advantage is like this in forming process, because steel ball layer is squeezed, interactional more obvious between steel ball, for mould forming effect advantageously.
Claims (3)
1. a composite die, comprise the upper bolster and die shoe that are oppositely arranged, upper bolster is provided with punch, die shoe is provided with die, die center is provided with forming cavity, it is characterized in that: in described punch, be provided with the booster cavity for connecting the input of outer liquid force feed, punch lower surface is provided with projection, forming cavity upper end on described die is set to horn mouth shape, forming cavity lower end is set to arcuate structure outwardly, forming cavity surface and bottom are coated with one deck steel ball layer, the all sides of die are provided with and are fixed on blank holder on die shoe, blank holder outside is provided with blanking die, blanking die is provided with stripper.
2. composite die according to claim 1, is characterized in that: be connected by motion bar between described upper bolster and die shoe.
3. composite die according to claim 1, is characterized in that: described steel ball layer thickness is set to 0.3mm-0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410665786.9A CN104438839A (en) | 2014-11-19 | 2014-11-19 | Composite die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410665786.9A CN104438839A (en) | 2014-11-19 | 2014-11-19 | Composite die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104438839A true CN104438839A (en) | 2015-03-25 |
Family
ID=52886030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410665786.9A Pending CN104438839A (en) | 2014-11-19 | 2014-11-19 | Composite die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104438839A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402502A (en) * | 2016-06-07 | 2017-02-15 | 新昌县七星街道宏昇机械厂 | Double-shock-absorbing structure for automobile pipeline and manufacturing technology of metal fixing sleeve of double-shock-absorbing structure |
| CN108787893A (en) * | 2018-07-27 | 2018-11-13 | 芜湖同创模具机械有限公司 | A kind of diel of low power consuming linkage demoulding |
-
2014
- 2014-11-19 CN CN201410665786.9A patent/CN104438839A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402502A (en) * | 2016-06-07 | 2017-02-15 | 新昌县七星街道宏昇机械厂 | Double-shock-absorbing structure for automobile pipeline and manufacturing technology of metal fixing sleeve of double-shock-absorbing structure |
| CN108787893A (en) * | 2018-07-27 | 2018-11-13 | 芜湖同创模具机械有限公司 | A kind of diel of low power consuming linkage demoulding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |