CN105665534A - Drawing die - Google Patents
Drawing die Download PDFInfo
- Publication number
- CN105665534A CN105665534A CN201610114393.8A CN201610114393A CN105665534A CN 105665534 A CN105665534 A CN 105665534A CN 201610114393 A CN201610114393 A CN 201610114393A CN 105665534 A CN105665534 A CN 105665534A
- Authority
- CN
- China
- Prior art keywords
- die
- blank
- drawing die
- punch
- rubber
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
-
- 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
- B21D45/02—Ejecting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention belongs to the field of dies, and particularly relates to a novel drawing die. The drawing die comprises a lower die holder, an upper die holder, a guide pillar, a drawing concave die and a drawing convex die, wherein the drawing concave die is fixedly installed in the middle of the upper end surface of the lower die holder, a convex die fixing plate is fixed to the middle of the lower end surface of the upper die holder, the drawing convex die is vertically fixed to the convex die fixing plate, and the drawing convex die is matched with the drawing concave die; an ejection rod is arranged in the middle of the end surface of the lower die holder, an ejection sliding block is arranged on the upper end of the ejection rod, the ejection sliding block is in sliding fit with the drawing concave die, the ejection sliding block and the drawing concave die form a forming cavity which is filled with rubber, the drawing convex die is abutted with one side surface of a blank, the other side surface of the blank is wrapped by the rubber, and steel balls of 0.4 mm are densely distributed between the rubber and the blank. The novel drawing die has the advantages that the material pressing force on a workpiece is large, the surface quality of the workpiece is good, the wrinkling is difficult, the rejection rate is low, the workpiece is easy to take from the drawing concave die after drawing, the stamping pressure response speed is high, and the overall quality of a forming part is good.
Description
Technical field
The invention belongs to mould applications, refer in particular to a kind of novel Drawing Die.
Background technology
Drawing is to utilize cupping tool that the plate blank that stamping-out is good is pressed into the hollow object of various opening, or Manufactured open hollow part is processed into a kind of processing method for stamping of other shaped hollow parts. The feature of cupping tool is that structure is relatively simple, compares with blanking die, and working portion has bigger fillet, and surface quality requirements is high, and clearance between matrix and punch is slightly larger than sheet thickness.
In drawing process, blank is by the effect of punch drawing pressure, and the radial direction at flange blank produces tensile stress, tangentially produces compression stress. Under their combined effect, flange deformation region material generation plastic deformation, and be constantly drawn in die and form tube drawing.
Under normal circumstances, have only to by once drawing just plastic for the product that drawing depth is less, when using existing Drawing Die to carry out drawing and forming, mould is less to the pressure-plate-force of workpiece, causing that surface of the work creases easily, workpiece surface quality is poor, and waster rate is high. Along with drawing depth increases, the plastic deformation quantitative change that flange deformation region occurs is big, the easy drawing crack in its flange deformation region, and the workpiece after drawing is easily stuck in drawing die, is not easily taken out, and reduces work efficiency, even causes burn failure.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, easy to use, the pressure-plate-force of workpiece is big, workpiece surface quality good, do not crease easily, waster rate is low and drawing complete after workpiece easily take out from drawing die, and stamping pressure fast response time and the good novel Drawing Die of drip molding total quality.
The object of the present invention is achieved like this:
A kind of Drawing Die, including die shoe, upper bolster, guide pillar, drawing die and drawing punch, many guide pillars are vertically fixed on die shoe, upper bolster and guide pillar are slidably matched, and guide pillar is vertical with the end face of upper bolster, it is additionally provided with guide pin bushing between described each guide pillar and upper bolster, guide pin bushing is fixed on upper bolster, drawing die it is installed with in the middle part of the upper surface of die shoe, it is further fixed on punch retainer in the middle part of the lower surface of upper bolster, drawing punch is vertically fixed on punch retainer, and drawing punch coordinates with drawing die;The end face center of die shoe is connected to knock-pin by threaded engagement; the upper end of knock-pin is provided with ejection slider; ejection slider and drawing die are slidably matched; ejection slider forms forming cavity with drawing die; it is filled with rubber in described forming cavity; the one side of described drawing punch and blank fits tightly, and the another side of rubber tight blank is densely covered with 0.4mm steel ball between described rubber and blank.
Being additionally provided with blank clamping plate between described drawing die and punch retainer, blank clamping plate and drawing punch are slidably matched.
Being additionally provided with stripper bolt on described die shoe, stripper bolt is connected by threaded engagement with die shoe, and stripper bolt through punch retainer and is connected by threaded engagement with blank clamping plate.
Being additionally provided with cushion pins on the end face of described drawing die, the upper end of cushion pins withstands on the lower surface of blank clamping plate.
Being additionally provided with helium spring on described die shoe, helium spring is through punch retainer and withstands on blank clamping plate, and helium spring aligns with cushion pins.
Described rubber is that upper and lower multilamellar is arranged.
The present invention highlights and useful having the technical effect that compared to existing technology
1, due to the fact that the another side of rubber tight stamping blanks, 0.4mm steel ball it is densely covered with between rubber and stamping blanks, 0.4mm steel ball is fixed on rubber, by rubber to stamping pressure fast response time, on the basis to stamping pressure fast response time, by 0.4mm steel ball is fixed on rubber, in forming process, punch is descending forces steel ball to move to surrounding, and steel ball moves in blank surface, change the stress of material, improve the forming quality of blank; Meanwhile, rubber forms the restriction to the motion of 0.4mm steel ball, it is achieved that stress uniform, reduces the stress of critical section, improves forming limit so that blank wall thickness is evenly.
2, due to the fact that rubber is that upper and lower multilamellar is arranged, during actual production, it is possible to the different pressures needs according to blank, every layer of rubber is set to different pressures, it is possible to better improve the forming quality of blank.
3, the present invention arranges blank clamping plate on drawing punch, and when drawing and forming, blank clamping plate are provided enough pressure-plate-force by helium spring so that workpiece drawing between blank clamping plate and drawing die is smoothed out.
4, the drawing die of the present invention coordinates with drawing punch, and applies pressure-plate-force by blank clamping plate, it is to avoid working surface is wrinkling, it is ensured that the surface quality of workpiece.
5, the present invention is provided with cushion pins on drawing die, after drawing puts in place, cushion pins withstands blank clamping plate, pressure-plate-force is acted on cushion pins completely, drawing punch stops running forward, obtained workpiece not only has the drawing depth of degree of precision, and drawing crack phenomenon not easily occurs, and waster rate is greatly lowered.
6, the present invention arranges knock-pin in the middle part of die shoe, and coordinates with ejection slider, and after drawing completes, knock-pin moves upward, and drives ejection slider, and workpiece is ejected by ejection slider, and workpiece easily takes out from drawing die.
Accompanying drawing explanation
Fig. 1 is the structural representation of Drawing Die.
Fig. 2 is the A place enlarged drawing of Fig. 1.
1-lower bolster; 2-cope match-plate pattern; 3-guide pillar; 4-guide pin bushing; 5-drawing die; 6-drawing punch; 7-punch retainer; 8-blank clamping plate; 9-stripper bolt; 10-helium spring; 11-knock-pin; 12-cushion pins; 13-ejection slider; 14-0.4mm steel ball;15-rubber.
Detailed description of the invention
Below in conjunction with accompanying drawing, with specific embodiment, the invention will be further described:
A kind of Drawing Die, including die shoe 1, upper bolster 2, guide pillar 3, drawing die 5 and drawing punch 6, many guide pillars 3 are vertically fixed on die shoe 1, upper bolster 2 and guide pillar 3 are slidably matched, and guide pillar 3 is vertical with the end face of upper bolster 2, it is additionally provided with guide pin bushing 4 between described each guide pillar 3 and upper bolster 2, guide pin bushing 4 is fixed on upper bolster 2, drawing die 5 it is installed with in the middle part of the upper surface of die shoe 1, punch retainer 7 it is further fixed in the middle part of the lower surface of upper bolster 2, drawing punch 6 is vertically fixed on punch retainer 7, drawing punch 6 coordinates with drawing die 5, the end face center of die shoe 1 is connected to knock-pin 11 by threaded engagement, the upper end of knock-pin 11 is provided with ejection slider 13, ejection slider 13 and drawing die 5 are slidably matched, ejection slider 13 and drawing die 5 form forming cavity, rubber 15 it is filled with in described forming cavity, the one side of described drawing punch 6 and blank fits tightly, and the another side of rubber 15 tight blank is densely covered with 0.4mm steel ball 14 between described rubber 15 and blank.
Being additionally provided with blank clamping plate 8 between described drawing die 5 and punch retainer 7, blank clamping plate 8 and drawing punch 6 are slidably matched.
Being additionally provided with stripper bolt 9 on described die shoe 1, stripper bolt 9 is connected by threaded engagement with die shoe 1, and stripper bolt 9 through punch retainer 7 and is connected by threaded engagement with blank clamping plate 8.
Being additionally provided with cushion pins 12 on the end face of described drawing die 5, the upper end of cushion pins 12 withstands on the lower surface of blank clamping plate 8.
Being additionally provided with helium spring 10 on described die shoe 1, helium spring 10 is through punch retainer 7 and withstands on blank clamping plate 8, and helium spring 10 aligns with cushion pins 12.
Described rubber 15 is that upper and lower multilamellar is arranged.
The present invention has simple in construction, easy to use, the pressure-plate-force of workpiece is big, workpiece surface quality good, do not crease easily, waster rate is low and drawing complete after workpiece easily take out from drawing die, and stamping pressure fast response time and the good feature of drip molding total quality.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described. Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention. Claimed scope is defined by appending claims and equivalent thereof.
Claims (6)
1. a Drawing Die, it is characterized in that, including die shoe, upper bolster, guide pillar, drawing die and drawing punch, many guide pillars are vertically fixed on die shoe, upper bolster and guide pillar are slidably matched, and guide pillar is vertical with the end face of upper bolster, it is additionally provided with guide pin bushing between described each guide pillar and upper bolster, guide pin bushing is fixed on upper bolster, drawing die it is installed with in the middle part of the upper surface of die shoe, being further fixed on punch retainer in the middle part of the lower surface of upper bolster, drawing punch is vertically fixed on punch retainer, and drawing punch coordinates with drawing die; The end face center of die shoe is connected to knock-pin by threaded engagement; the upper end of knock-pin is provided with ejection slider; ejection slider and drawing die are slidably matched; ejection slider forms forming cavity with drawing die; it is filled with rubber in described forming cavity; the one side of described drawing punch and blank fits tightly, and the another side of rubber tight blank is densely covered with 0.4mm steel ball between described rubber and blank.
2. a kind of Drawing Die according to claim 1, it is characterised in that being additionally provided with blank clamping plate between described drawing die and punch retainer, blank clamping plate and drawing punch are slidably matched.
3. a kind of Drawing Die according to claim 1, it is characterised in that being additionally provided with stripper bolt on described die shoe, stripper bolt is connected by threaded engagement with die shoe, and stripper bolt through punch retainer and is connected by threaded engagement with blank clamping plate.
4. a kind of Drawing Die according to claim 1, it is characterised in that being additionally provided with cushion pins on the end face of described drawing die, the upper end of cushion pins withstands on the lower surface of blank clamping plate.
5. a kind of Drawing Die according to claim 1, it is characterised in that being additionally provided with helium spring on described die shoe, helium spring is through punch retainer and withstands on blank clamping plate, and helium spring aligns with cushion pins.
6. a kind of Drawing Die according to claim 1, it is characterised in that described rubber is that upper and lower multilamellar is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114393.8A CN105665534A (en) | 2015-12-09 | 2015-12-09 | Drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114393.8A CN105665534A (en) | 2015-12-09 | 2015-12-09 | Drawing die |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510901142.X Division | 2015-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105665534A true CN105665534A (en) | 2016-06-15 |
Family
ID=56305591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610114393.8A Pending CN105665534A (en) | 2015-12-09 | 2015-12-09 | Drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105665534A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723158A (en) * | 2018-05-30 | 2018-11-02 | 江苏盖之宝包装科技有限公司 | A kind of cavity plate hydro-drawing device |
| CN109500193A (en) * | 2019-01-07 | 2019-03-22 | 镇江先锋汽车零部件有限公司 | A kind of motor housing high-precision deep bearing chamber drawing mechanism |
| CN112642930A (en) * | 2020-12-11 | 2021-04-13 | 武汉理工大学 | Electromagnetic composite forming method for oblique flange box-shaped part |
| CN113275460A (en) * | 2021-04-09 | 2021-08-20 | 中北大学 | Rib mould in upset blank with horizontal interior muscle barrel work piece |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286218A (en) * | 2013-06-28 | 2013-09-11 | 苏州唐氏机械制造有限公司 | Stamping die |
| CN103302184A (en) * | 2013-06-28 | 2013-09-18 | 苏州唐氏机械制造有限公司 | Pressurizing and stamping die |
| CN103894495A (en) * | 2014-03-20 | 2014-07-02 | 成都极点精密模具有限公司 | Secondary drawing die |
| CN104815903A (en) * | 2013-06-28 | 2015-08-05 | 朱保生 | Die |
-
2015
- 2015-12-09 CN CN201610114393.8A patent/CN105665534A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286218A (en) * | 2013-06-28 | 2013-09-11 | 苏州唐氏机械制造有限公司 | Stamping die |
| CN103302184A (en) * | 2013-06-28 | 2013-09-18 | 苏州唐氏机械制造有限公司 | Pressurizing and stamping die |
| CN104815903A (en) * | 2013-06-28 | 2015-08-05 | 朱保生 | Die |
| CN104815902A (en) * | 2013-06-28 | 2015-08-05 | 朱保生 | Working method of die with good-quality stamped forming part |
| CN103894495A (en) * | 2014-03-20 | 2014-07-02 | 成都极点精密模具有限公司 | Secondary drawing die |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723158A (en) * | 2018-05-30 | 2018-11-02 | 江苏盖之宝包装科技有限公司 | A kind of cavity plate hydro-drawing device |
| CN109500193A (en) * | 2019-01-07 | 2019-03-22 | 镇江先锋汽车零部件有限公司 | A kind of motor housing high-precision deep bearing chamber drawing mechanism |
| CN112642930A (en) * | 2020-12-11 | 2021-04-13 | 武汉理工大学 | Electromagnetic composite forming method for oblique flange box-shaped part |
| CN112642930B (en) * | 2020-12-11 | 2021-12-03 | 武汉理工大学 | Electromagnetic composite forming method for oblique flange box-shaped part |
| CN113275460A (en) * | 2021-04-09 | 2021-08-20 | 中北大学 | Rib mould in upset blank with horizontal interior muscle barrel work piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |
|
| RJ01 | Rejection of invention patent application after publication |