CN108380679A - A kind of yoke cold reducing extrusion die and its assembly method - Google Patents
A kind of yoke cold reducing extrusion die and its assembly method Download PDFInfo
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- CN108380679A CN108380679A CN201810106650.2A CN201810106650A CN108380679A CN 108380679 A CN108380679 A CN 108380679A CN 201810106650 A CN201810106650 A CN 201810106650A CN 108380679 A CN108380679 A CN 108380679A
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- 238000001125 extrusion Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004513 sizing Methods 0.000 claims abstract description 35
- 238000013459 approach Methods 0.000 claims abstract description 32
- 238000000465 moulding Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention relates to a kind of yoke cold reducing extrusion die and its assembly methods, extrusion die includes cope plate, lower plate, punch-pin, punch-pin locating piece, cavity plate and cavity plate locating piece, the endoporus of cavity plate includes the approach section set gradually from top to bottom, extruded segment, sizing section and export section, approach section and sizing section are cylindrical hole, and the aperture of approach section is more than the aperture of sizing section；Extruded segment is the first up big and down small bellmouth, and the cone angle of the first bellmouth is 18 ° to 22 °；Export section is the second up-small and down-big bellmouth, and the cone angle of the second bellmouth is 8 ° to 12 °.The present invention makes product be moved down under the promotion of punch-pin, pass through approach section, extruded segment, sizing section and export section in its folding process successively, its outer diameter is gradually reduced when by extruded segment, is stablized again through section outer diameter of shaping later, and cavity plate can be detached from by being displaced downwardly to export section later.
Description
Technical field
The present invention relates to mold design technical field, more particularly to a kind of yoke cold reducing extrusion die and its assembly method.
Background technology
With the keen competition in heavy-duty car vehicle market, each main engine plants are increasingly stringenter parts quality requirement, both
Meet design strength requirement, and require energy-saving and emission-reduction, automotive light weight technology production is a main trend of development of automobile.And cold reducing
Technique is that the bar of cold conditions or materials in the tube are put into the matrix cavity on forcing press, forced according to Principles of Metal Forming
Metal stock passes through from matrix cavity, its radial section is made to reduce, axial elongation, to obtain required shape, size and tool
There is the product of certain mechanical performance.For existing cold reducing technology because Die Design is not reasonable during extrusion forming, product is easy
The problem of there is flexural deformation and being not easy to be detached from from cavity plate.
Invention content
Technical problem to be solved by the invention is to provide a kind of yoke cold reducing extrusion die and its assembly methods, to overcome
Above-mentioned deficiency in the prior art.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
Embodiment one, a kind of yoke cold reducing extrusion die, including cope plate, lower plate and it is set to cope plate and bottom
Punch-pin, punch-pin locating piece, cavity plate and cavity plate locating piece, punch-pin between plate are fixed on by punch-pin locating piece on cope plate；It is recessed
Mould is fixed on by cavity plate locating piece on lower plate；The endoporus of cavity plate include the approach section set gradually from top to bottom, extruded segment,
Section of shaping and export section, approach section and sizing section are cylindrical hole, and the aperture of approach section is more than the aperture of sizing section；Extruded segment is
The cone angle of the first up big and down small bellmouth, the first bellmouth is 18 ° to 22 °；Export section is the second up-small and down-big bellmouth,
The cone angle of second bellmouth is 8 ° to 12 °.
Further：The intersection of approach section and extruded segment, the intersection of extruded segment and sizing section, sizing section and export section
Intersection is equipped with fillet.
The advantageous effect of above-mentioned further scheme is：Product is set to move down by the intersection of approach section and extruded segment, squeeze
Section with sizing section intersection, sizing section with export section intersection when can smooth transition.
Further：Punch-pin includes the first cylinder and the second cylinder, and the first cylinder is set to the upper end of the second cylinder, the first column
Body is fixed on by punch-pin locating piece on cope plate；The outer diameter of second cylinder is less than the aperture of approach section, and the second cylinder is outer
Diameter is less than the aperture of sizing section.
The advantageous effect of above-mentioned further scheme is：The outer diameter of second cylinder is less than the aperture of approach section, and the second cylinder
Outer diameter be less than sizing section aperture, convenient for the second cylinder push product make its successively pass through approach section, extruded segment, sizing section and
Cavity plate is left after export section.
Further：The height of second cylinder is more than approach section, the sum of the height of extruded segment and section of shaping.
The advantageous effect of above-mentioned further scheme is：It is detached from cavity plate conducive to product after extrusion forming.
Further：Punch-pin locating piece includes punch retainer, convex mould base and punch pad, and punch retainer is fixed on upper mold
On plate；The upper end of convex mould base is fixed on by punch pad on punch retainer；Punch-pin is fixed on the lower end of convex mould base.
Further：Cavity plate locating piece includes cavity plate backing plate, cavity plate outer ring and die socket, and cavity plate outer ring is sheathed on cavity plate；
Die socket is fixed on lower plate；Cavity plate, cavity plate outer ring and cavity plate backing plate may be contained in die socket；Cavity plate backing plate is set to recessed
The lower section of mould and cavity plate outer ring.
Further：Extrusion cylinder is additionally provided in die socket, extrusion cylinder is set to the top of cavity plate and cavity plate outer ring.
The advantageous effect of above-mentioned further scheme is：Multiple processed products can be placed in extrusion cylinder simultaneously, compared to every
A product staff is processed for it must be placed again into a processed product, the time can be saved, improves work effect
Rate.
Further：Cavity plate locating piece includes cavity plate trim ring, and cavity plate trim ring is set to the upper end of extrusion cylinder, and cavity plate trim ring is fixed
In on die socket.
The advantageous effect of above-mentioned further scheme is：Extrusion cylinder, cavity plate, cavity plate outer ring and cavity plate backing plate is relatively firm
It is fixed in die socket.
Further：Punch-pin further includes the third cylinder being set between the first cylinder and the second cylinder, third cylinder it is outer
Diameter is less than the aperture of approach section, and the outer diameter of third cylinder is more than the aperture of sizing section.
The advantageous effect of above-mentioned further scheme is：The height for increasing punch-pin passes through extrusion cylinder that will produce using the second cylinder
Product are released.
Embodiment two, a kind of assembly method of yoke cold reducing extrusion die, include the following steps,
Step S1：Die socket is installed on lower plate, cavity plate backing plate is installed in die socket later；
Step S2：It is encased in die socket together after cavity plate is encased in cavity plate outer ring, and positioned at the upper of cavity plate backing plate
Side；
Step S3：Extrusion cylinder is encased in die socket, and positioned at the top of cavity plate and cavity plate outer ring；
Step S4：In the upper end anchor molding circle of die socket, by extrusion cylinder, cavity plate, cavity plate outer ring and cavity plate backing plate
It is fixed in die socket；
Step S5：Punch retainer is installed on cope plate, the first cylinder of punch-pin is fixed on to the lower end of convex mould base；It will
The upper end of convex mould base is fixed on by punch pad on punch retainer；
Step S6：It is wholy set in what is completed by step S5 through step S1 to the step S4 entirety completed
Top, and the axial line of punch-pin is made to be aligned with the axial line of cavity plate.
The beneficial effects of the invention are as follows：Product moves down under the promotion of punch-pin, passes through successively in folding process recessed
Approach section, extruded segment, sizing section on mould and export section, in the first bellmouth Jing Guo extruded segment, its outer diameter is gradually reduced,
Stablize later in required size using product outer diameter after sizing section, cavity plate can be detached from by being further displaced downwardly to export section later；
The setting of wherein the first bellmouth makes outer diameter in product folding process gradually reduce until reaching required size, and process is gentle, obtains
It is preferable to obtain product quality, is not easy flexural deformation；Product is detached from cavity plate after the setting of second bellmouth is conducive to extrusion forming.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of yoke cold reducing extrusion die of the present invention；
Fig. 2 is the sectional view in the directions A-A ' in Fig. 1；
Fig. 3 is the structural schematic diagram of cavity plate in a kind of yoke cold reducing extrusion die of the present invention；
Fig. 4 is a kind of structural schematic diagram of yoke cold reducing extrusion die convex mould of the present invention.
In figure：1 it is cope plate, 2 be lower plate, 21 be lower bolster, 3 be punch-pin, 31 be the first cylinder, 32 is the second column
Body, 33 be third cylinder, 4 be punch-pin locating piece, 41 be punch retainer, 42 be convex mould base, 43 be punch pad, 44 be punch-pin
Backing plate, 5 be cavity plate, 51 be approach section, 52 be extruded segment, 53 be sizing section, 54 be export section, 6 be cavity plate locating piece, 61 be recessed
Die-cushion plate, 62 be cavity plate outer ring, 63 be die socket, 631 be extrusion cylinder, 64 be cavity plate trim ring.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in Figure 1, Figure 2 and Figure 3, a kind of yoke cold reducing extrusion die includes cope plate 1, lower plate 2 and is set to
Punch-pin 3, punch-pin locating piece 4, cavity plate 5 and cavity plate locating piece 6, punch-pin 3 between cope plate 1 and lower plate 2 are positioned by punch-pin
Part 4 is fixed on cope plate 1；Cavity plate 5 is fixed on by cavity plate locating piece 6 on lower plate 2；The endoporus of cavity plate 5 include from up to
Under set gradually approach section 51, extruded segment 52, sizing section 53 and export section 54, approach section 51 and sizing section 53 be cylindricality
Hole, the aperture of approach section 51 are more than the aperture of sizing section 53；Extruded segment 52 is the first up big and down small bellmouth, the first bellmouth
Taper angle theta1It is 18 ° to 22 °, preferably 20 ° or so；Export section 54 is the second up-small and down-big bellmouth, the second bellmouth
Taper angle theta2It is 8 ° to 12 °, preferably 10 ° or so.
Product moves down under the promotion of punch-pin 3, in folding process successively pass through cavity plate 5 on approach section 51, squeeze
Section 52, sizing section 53 and export section 54 are pressed, its outer diameter is gradually reduced in the first bellmouth Jing Guo extruded segment 52, is passed through again later
Product outer diameter is stablized in required size after crossing sizing section 53, and cavity plate 5 can be detached from by being further displaced downwardly to export section 54 later；Wherein
The setting of first bellmouth makes outer diameter in product folding process gradually reduce until reaching required size, and process is gentle, is produced
Quality is more preferably；Product is detached from cavity plate 5 after the setting of second bellmouth is conducive to extrusion forming.
As shown in figure 3, approach section 51 and the intersection of extruded segment 52, the intersection of extruded segment 52 and sizing section 53, sizing
Section 53 and the intersection of export section 54 are equipped with fillet.Product is set to move down by the intersection of approach section 51 and extruded segment 52, squeeze
It can smooth transition when the intersection for pressing section 52 and section 53 of shaping, section 53 of shaping are with the intersection for exporting section 54.The radius of fillet is
2mm。
As shown in figs. 1 and 4, punch-pin 3 includes the first cylinder 31 and the second cylinder 32, and the first cylinder 31 is set to the second cylinder
32 upper end, the first cylinder 31 are fixed on by punch-pin locating piece 4 on cope plate 1；The outer diameter h of second cylinder 321Less than entrance
The aperture l of section 511, and the outer diameter h of the second cylinder 321Less than the aperture l of sizing section 532.The outer diameter h of second cylinder 321Less than into
Enter the aperture l of section 511, and the outer diameter h of the second cylinder 321Less than the aperture l of sizing section 532, product is pushed convenient for the second cylinder 32
It is set to leave cavity plate 5 after approach section 51, extruded segment 52, sizing section 53 and export section 54 successively.
The height h of second cylinder 323The sum of height more than approach section 51, extruded segment 52 and section 53 of shaping h4.Conducive to extruding
Product is detached from cavity plate 5 after molding.
As shown in Figure 1, punch-pin locating piece 4 includes punch retainer 41, convex mould base 42 and punch pad 43, punch retainer
41 are fixed on cope plate 1；The upper end of convex mould base 42 is fixed on by punch pad 43 on punch retainer 41；Punch-pin 3 is fixed
In the lower end of convex mould base 42.
As shown in Figure 1, punch retainer 41 be equipped with stepped hole, stepped hole include the first circular hole and the second circular hole, first
Circular hole is set to the upper end of the second circular hole, and the aperture of the first circular hole is more than the aperture of the second circular hole；Convex mould base 42 includes third
Cylinder and the 4th cylinder, third cylinder is set to the upper end of the 4th cylinder, and the outer diameter of third cylinder is more than the outer of the 4th cylinder
Diameter；Third cylinder is embedded in the second circular hole, and punch pad 43 is set to the lower end of third cylinder, and convex mould base 42 is fixed on
On punch retainer 41；It is connected by screw between convex mould base 42 and punch-pin 3；Convex mould pad 44 is additionally provided in first circular hole, with
Prevent convex mould base 42 from being moved in punch retainer 41.
As shown in Figure 1, cavity plate locating piece 6 includes cavity plate backing plate 61, cavity plate outer ring 62 and die socket 63,62 sets of cavity plate outer ring
On cavity plate 5；Die socket 63 is fixed on lower plate 2；Cavity plate 5, cavity plate outer ring 62 and cavity plate backing plate 61 may be contained within cavity plate
In seat 63；Cavity plate backing plate 61 is set to the lower section of cavity plate 5 and cavity plate outer ring 62.
As shown in Figure 1, being additionally provided with extrusion cylinder 631 in die socket 63, extrusion cylinder 631 is set to cavity plate 5 and cavity plate outer ring 62
Top.Multiple processed products can be placed in extrusion cylinder 631 simultaneously, just must compared to a product staff is often processed
It must be placed again into for a processed product, the time can be saved, improve working efficiency.
As shown in Figure 1, cavity plate locating piece 6 includes cavity plate trim ring 64, cavity plate trim ring 64 is set to the upper end of extrusion cylinder 631,
Cavity plate trim ring 64 is fixed on die socket 63.Extrusion cylinder 631, cavity plate 5, cavity plate outer ring 62 and cavity plate backing plate 61 is relatively firm
It is fixed in die socket 63.
As shown in figure 4, punch-pin 3 further includes the third cylinder 33 being set between the first cylinder 31 and the second cylinder 32, the
The outer diameter h of three cylinders 332Less than the aperture l of approach section 511, the outer diameter h of third cylinder 332More than the aperture l of sizing section 532.Add
The height of big punch-pin 3, is released product across extrusion cylinder 631 using the second cylinder 32.
As shown in Fig. 2, for raising working efficiency, the quantity of punch-pin 3 and cavity plate 5 is three.
As depicted in figs. 1 and 2, the bottom of lower plate 2 is additionally provided with lower bolster 21.It is equipped between lower plate 2 and lower bolster 21
Channel 22 for placing shaped article, channel 22 is interior to be equipped with expeller 23.
Embodiment two, a kind of assembly method of yoke cold reducing extrusion die, include the following steps,
Step S1：Die socket 63 is installed on lower plate 2, cavity plate backing plate 61 is installed in die socket 63 later；
Step S2：It is encased in together in die socket 63 after cavity plate 5 is encased in cavity plate outer ring 62, and is located at cavity plate backing plate
61 top；
Step S3：Extrusion cylinder 631 is encased in die socket 63, and positioned at the top of cavity plate 5 and cavity plate outer ring 62；
Step S4：In the upper end anchor molding circle 64 of die socket 63, by extrusion cylinder 631, cavity plate 5, cavity plate outer ring 62
It is fixed in die socket 63 with cavity plate backing plate 61；
Step S5：Punch retainer 41 is installed on cope plate 1, the first cylinder 31 of punch-pin 3 is fixed on convex mould base 42
Lower end；The upper end of convex mould base 42 is fixed on by punch pad 43 on punch retainer 41；
Step S6：It is wholy set in what is completed by step S5 through step S1 to the step S4 entirety completed
Top, and the axial line of punch-pin 3 is made to be aligned with the axial line of cavity plate 5.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of yoke cold reducing extrusion die, it is characterised in that：Including cope plate (1), lower plate (2) and it is set on described
Punch-pin (3), punch-pin locating piece (4), cavity plate (5) between template (1) and the lower plate (2) and cavity plate locating piece (6), it is described
Punch-pin (3) is fixed on by the punch-pin locating piece (4) on the cope plate (1)；The cavity plate (5) is positioned by the cavity plate
Part (6) is fixed on the lower plate (2)；The endoporus of the cavity plate (5) include the approach section (51) set gradually from top to bottom,
Extruded segment (52), sizing section (53) and export section (54), the approach section (51) and the sizing section (53) are cylindrical hole, institute
The aperture for stating approach section (51) is more than the aperture of the sizing section (53)；The extruded segment (52) is the first up big and down small taper
The cone angle in hole, first bellmouth is 18 ° to 22 °；The export section (54) is the second up-small and down-big bellmouth, described the
The cone angle of two bellmouths is 8 ° to 12 °.
2. a kind of yoke cold reducing extrusion die according to claim 1, it is characterised in that：The approach section (51) is squeezed with described
Press section (52) intersection, the extruded segment (52) with it is described shape section (53) intersection, the sizing section (53) with it is described
The intersection of export section (54) is equipped with fillet.
3. a kind of yoke cold reducing extrusion die according to claim 1, it is characterised in that：The punch-pin (3) includes the first column
Body (31) and the second cylinder (32), first cylinder (31) are set to the upper end of second cylinder (32), first column
Body (31) is fixed on by the punch-pin locating piece (4) on the cope plate (1)；The outer diameter of second cylinder (32) is less than institute
The aperture of approach section (51) is stated, and the outer diameter of second cylinder (32) is less than the aperture of the sizing section (53).
4. a kind of yoke cold reducing extrusion die according to claim 3, it is characterised in that：The height of second cylinder (32)
More than the approach section (51), the sum of the height of the extruded segment (52) and the sizing section (53).
5. a kind of yoke cold reducing extrusion die according to claim 1, it is characterised in that：The punch-pin locating piece (4) includes
Punch retainer (41), convex mould base (42) and punch pad (43), the punch retainer (41) are fixed on the cope plate (1)
On；The upper end of the convex mould base (42) is fixed on by the punch pad (43) on the punch retainer (41)；It is described convex
Mould (3) is fixed on the lower end of the convex mould base (42).
6. a kind of yoke cold reducing extrusion die according to claim 1, it is characterised in that：The cavity plate locating piece (6) includes
Cavity plate backing plate (61), cavity plate outer ring (62) and die socket (63), the cavity plate outer ring (62) are sheathed on the cavity plate (5)；Institute
Die socket (63) is stated to be fixed on the lower plate (2)；The cavity plate (5), the cavity plate outer ring (62) and the cavity plate backing plate
(61) it may be contained in the die socket (63)；The cavity plate backing plate (61) is set to the cavity plate (5) and the cavity plate outer ring
(62) lower section.
7. a kind of yoke cold reducing extrusion die according to claim 6, it is characterised in that：It is additionally provided in the die socket (63)
Extrusion cylinder (631), the extrusion cylinder (631) are set to the top of the cavity plate (5) and the cavity plate outer ring (62).
8. a kind of yoke cold reducing extrusion die according to claim 7, it is characterised in that：The cavity plate locating piece (6) includes
Cavity plate trim ring (64), the cavity plate trim ring (64) are set to the upper end of the extrusion cylinder (631), and the cavity plate trim ring (64) is fixed
In on the die socket (63).
9. a kind of yoke cold reducing extrusion die according to claim 8, it is characterised in that：The punch-pin (3) further includes setting
Third cylinder (33) between the first cylinder (31) and the second cylinder (32), the outer diameter of the third cylinder (33) is less than described
The aperture of approach section (51), the outer diameter of the third cylinder (33) are more than the aperture of the sizing section (53).
10. a kind of exist according to a kind of any assembly method of yoke cold reducing extrusion die, feature in claim 1 to 9
In：Include the following steps,
Step S1：Die socket (63) is installed on lower plate (2), cavity plate backing plate (61) is installed on the die socket later
(63) in；
Step S2：It is encased in together after cavity plate (5) is encased in cavity plate outer ring (62) in the die socket (63), and is located at institute
State the top of cavity plate backing plate (61)；
Step S3：Extrusion cylinder (631) is encased in die socket (63), and is located at the cavity plate (5) and the cavity plate outer ring
(62) top；
Step S4：In the upper end anchor molding circle (64) of the die socket (63), by the extrusion cylinder (631), described recessed
Mould (5), the cavity plate outer ring (62) and the cavity plate backing plate (61) are fixed in the die socket (63)；
Step S5：Punch retainer (41) is installed on cope plate (1), the first cylinder (31) of punch-pin (3) is fixed on punch-pin
The lower end of seat (42)；The upper end of convex mould base (42) is fixed on by punch pad (43) on punch retainer (41)；
Step S6：It is wholy set in what is completed by step S5 through the upper of step S1 to the step S4 entirety completed
Side, and the axial line of punch-pin (3) is made to be aligned with the axial line of cavity plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810106650.2A CN108380679A (en) | 2018-02-02 | 2018-02-02 | A kind of yoke cold reducing extrusion die and its assembly method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810106650.2A CN108380679A (en) | 2018-02-02 | 2018-02-02 | A kind of yoke cold reducing extrusion die and its assembly method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108380679A true CN108380679A (en) | 2018-08-10 |
Family
ID=63074456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810106650.2A Pending CN108380679A (en) | 2018-02-02 | 2018-02-02 | A kind of yoke cold reducing extrusion die and its assembly method |
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|---|---|---|---|---|
| CN1367051A (en) * | 2001-02-15 | 2002-09-04 | 华北工学院 | Gear precision plastic forming process and its forming mould |
| US20060032334A1 (en) * | 2004-08-13 | 2006-02-16 | Vip Tooling, Inc., (An Indiana Corporation) | Method for manufacturing extrusion die tools |
| CN201366448Y (en) * | 2009-03-02 | 2009-12-23 | 湖北天轮机械有限公司 | Backward cold extrusion die for rear stabilizer bar sleeve of car |
| CN102825140A (en) * | 2012-09-19 | 2012-12-19 | 燕山大学 | Reducing die for swelling pressure modeled type automobile axle case |
| CN106216421A (en) * | 2016-08-30 | 2016-12-14 | 湖北纳福传动机械股份有限公司 | A kind of gear ring hot-extrusion mold and assembly method thereof |
| CN206083458U (en) * | 2016-08-30 | 2017-04-12 | 湖北纳福传动机械股份有限公司 | Ring gear hot -extrusion die |
| CN206104573U (en) * | 2016-10-25 | 2017-04-19 | 十堰园钧工贸有限公司 | A die set that is used for shrinkage footpath major axis class |
| CN207857548U (en) * | 2018-02-02 | 2018-09-14 | 湖北纳福传动机械股份有限公司 | A kind of yoke cold reducing extrusion die |
-
2018
- 2018-02-02 CN CN201810106650.2A patent/CN108380679A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367051A (en) * | 2001-02-15 | 2002-09-04 | 华北工学院 | Gear precision plastic forming process and its forming mould |
| US20060032334A1 (en) * | 2004-08-13 | 2006-02-16 | Vip Tooling, Inc., (An Indiana Corporation) | Method for manufacturing extrusion die tools |
| CN201366448Y (en) * | 2009-03-02 | 2009-12-23 | 湖北天轮机械有限公司 | Backward cold extrusion die for rear stabilizer bar sleeve of car |
| CN102825140A (en) * | 2012-09-19 | 2012-12-19 | 燕山大学 | Reducing die for swelling pressure modeled type automobile axle case |
| CN106216421A (en) * | 2016-08-30 | 2016-12-14 | 湖北纳福传动机械股份有限公司 | A kind of gear ring hot-extrusion mold and assembly method thereof |
| CN206083458U (en) * | 2016-08-30 | 2017-04-12 | 湖北纳福传动机械股份有限公司 | Ring gear hot -extrusion die |
| CN206104573U (en) * | 2016-10-25 | 2017-04-19 | 十堰园钧工贸有限公司 | A die set that is used for shrinkage footpath major axis class |
| CN207857548U (en) * | 2018-02-02 | 2018-09-14 | 湖北纳福传动机械股份有限公司 | A kind of yoke cold reducing extrusion die |
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Application publication date: 20180810 |