CN107520388A - The upsetting molding jig of double-shaft shoulder form workpiece - Google Patents
The upsetting molding jig of double-shaft shoulder form workpiece Download PDFInfo
- Publication number
- CN107520388A CN107520388A CN201710708326.3A CN201710708326A CN107520388A CN 107520388 A CN107520388 A CN 107520388A CN 201710708326 A CN201710708326 A CN 201710708326A CN 107520388 A CN107520388 A CN 107520388A
- Authority
- CN
- China
- Prior art keywords
- core
- mold core
- shaft shoulder
- double
- upsetting
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention relates to the upsetting molding jig of the double-shaft shoulder form workpiece in mould applications, upper mould thimble, lower mold core, the material returned bar in lower mold core and middle die sleeve including upper mold core, in upper mold core, moved back and forth along the vertical direction in the centre bore of middle die sleeve and be equipped with middle core rod, middle core rod includes the core pieces that two or more is set around middle die sleeve axis, is respectively provided with each core pieces and is treating the core pieces cavity of upsetting workpiece periphery formation double-shaft shoulder die cavity；The centre bore of middle die sleeve, which has, to be used to guide the conical through-hole section that each core pieces are closed up；Lower mold core be provided be used for each core pieces it is descending in place when bottom support surface that each core pieces are supported, be provided between adjacent core pieces and be used to apply middle core rod elastic component of the repulsion to force each core pieces to be scattered to corresponding core pieces when middle core rod is up.Compared to prior art, upsetting difficulty is reduced, improves upsetting efficiency.
Description
Technical field
The present invention relates to the upsetting molding jig in mould applications, and in particular to a kind of double-shaft shoulder structure on upsetting workpiece
Upsetting molding jig.
Background technology
Products application with double-shaft shoulder structure is extensive, as shown in figure 1, workpiece 6 includes what axis extended in left-right direction
Axis body, axis body are provided with double-shaft shoulder structure, and double-shaft shoulder structure includes first shaft shoulder, second shaft shoulder and sets first, second shaft shoulder
Between shaft shoulder interlude.If taking the mode of turnery processing, the workpiece after shaping can not meet the requirement of shaft shoulder metal streamline,
And processing cost is higher；Accordingly, it is considered to processed using the method for upsetting system processing.
There are mould structure as shown in Figure 2, including upper die component and lower mold body component, upper module in existing upsetting molding jig
Part includes Upper Die-sleeve 3, be oriented to the upper mold core 4 that is assemblied in Upper Die-sleeve 3 along the vertical direction and be oriented to be assemblied in it is upper in upper mold core
Mould thimble 5, the rear end of upper mould thimble 5 are connected with pad 2 after mould, and the rear end of upper mold core 4 is connected with for being pressed to upper mold core 4
Upper mold core spring 1.Lower mold assemblies include lower mold core 10, and die is provided with lower mold core 10 and is inserted into lower mold core 10 and die
Material returned bar 11, be provided with die the placed cavity placed for workpiece 6 and for when workpiece 6 is pressurized for the forming cavity of the deformation of workpiece 6.
In use, workpiece 6 is placed into lower mold core 10, upper die component is pushed, and material returned bar 11 is supported to workpiece 6, and workpiece 6 is under
Type is made by upsetting in core rod 10.
But due to the particularity of double-shaft shoulder structure, it is necessary to consider how to take workpiece from die cavity after the completion of upsetting system
Go out；Existing upsetting molding jig is difficult that a upsetting makes shaft shoulder structure at two, it is necessary to make more molds, could be made through multiple upsetting system
Into；The upsetting difficulty of double-shaft shoulder structure is larger, upsetting system is less efficient.
The content of the invention
It is an object of the invention to provide a kind of upsetting molding jig of double-shaft shoulder form workpiece, to solve with existing upsetting molding
The problem of difficulty of processing is big, processing efficiency is low existing for tool processing double-shaft shoulder structure.
To achieve the above object, the technical scheme of the upsetting molding jig of double-shaft shoulder form workpiece of the invention is：Double-shaft shoulder knot
The upsetting molding jig of structure workpiece includes upper die component and lower mold assemblies, and upper die component includes upper mold core and upper in upper mold core
Mould thimble, lower mold assemblies include lower mold core and the material returned bar in lower mold core, and upsetting molding jig also includes prolonging along the vertical direction
The middle die sleeve stretched, move back and forth along the vertical direction in the centre bore of middle die sleeve and be equipped with middle core rod, middle core rod includes two
It is respectively provided with to concentrate to be close in each core pieces in the core pieces of middle die sleeve axis setting, each core pieces above and treats
The core pieces cavity of double-shaft shoulder die cavity is formed during upsetting workpiece periphery；The centre bore of middle die sleeve has in upper mold core top pressure core rod
Block applies the up big and down small conical through-hole section for closing up active force to each core pieces during moving down；Lower mold core, which is provided with, to be used
In each core pieces it is descending in place when bottom support surface that each core pieces are supported, be provided between adjacent core pieces and be used in
Apply middle core rod elastic component of the repulsion to force each core pieces to be scattered to corresponding core pieces when core rod is up.
The top of the middle die sleeve, which is provided with, is used for the middle core rod gland that centering core rod carries out block, is set on middle core rod gland
There is the upper mold core perforation passed through for upper mold core, the diameter of upper mold core perforation is less than the diameter of the upper end of the conical through-hole section；In
The minimum diameter of the inner edge of core rod, which is more than, during core rod is gone upward to when being contacted with middle core rod gland treats the double-shaft shoulder structure of upsetting most
Big external diameter.
The top surface of the lower mold core forms the supporting surface, and intermediate die is put is provided with edge in the position close to the supporting surface
The rod radial air vent connected with the conical through-hole section that middle die sleeve radially extends.
Middle core rod gland, middle die sleeve and the lower mold core, which are provided with corresponding connecting hole, connecting hole up and down, to be had in
Between the spaced two or more of die sleeve axis.
The core pieces have three pieces set at equal intervals around middle die sleeve axis.
The middle core rod elastic component is formed by middle core rod spring, is set respectively in the opposing sidewalls of adjacent two core pieces
There is the spring mounting hole of the end insertion installation of core rod spring in supplying.
The upper die component includes Upper Die-sleeve, and upper mold core is oriented to is assemblied in Upper Die-sleeve along the vertical direction, upper mold core connection
There is the upper mold core spring for applying down force for upward core rod；Upper mould thimble is fixedly connected with Upper Die-sleeve, is set in upper mold core
Have and perforated for avoiding the upper mould thimble of upper mould thimble.
The top of the Upper Die-sleeve is padded after being provided with the upper mould being fixedly connected for upper mould thimble, and the upper mold core spring is installed on
After upper mould on pad.
Treat that upsetting workpiece enters for guiding provided with what is from top to bottom gradually increased at the lower aperture of the upper mould thimble perforation
Enter the tapered guide section of upper mold core.
The circumferential wall of the upper mold core is provided with along the axially extending planar structure of upper mold core, planar structure and Upper Die-sleeve it
Between form vertically extending axial vent holes.
The beneficial effects of the invention are as follows：Workpiece is fitted into lower mold core during use, material returned bar is supported to workpiece, upper mould
Core moves downward centering core rod pressure, and middle core rod is pressurized and moved down, and each core pieces are mutually drawn close under the guiding of bellmouth；
Workpiece between upper mould thimble and charging ram by upsetting pressure, when each core pieces move toward one another in place after, each core pieces are treating upsetting jointly
For the periphery of workpiece processed into double-shaft shoulder die cavity, the supporting surface centering core rod on upper die body carries out block；On workpiece with middle core rod
Double-shaft shoulder structure is formed on corresponding position；Afterwards, workpiece moves up under the pushing tow of material returned bar, and middle module is in middle core rod elasticity
Opened in the presence of part, workpiece can be removed therefrom on core rod；Compared to prior art, upsetting difficulty is reduced, improves upsetting system
Efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the workpiece with double-shaft shoulder structure；
Fig. 2 is the structural representation of existing upsetting molding jig；
Fig. 3 is structural representation of the upsetting molding jig of the double-shaft shoulder form workpiece of the present invention before upsetting system；
Fig. 4 is structural representation of the upsetting molding jig of the double-shaft shoulder form workpiece of the present invention after upsetting system；
Fig. 5 is top view of the middle core rod in open configuration in Fig. 3；
Fig. 6 is sectional views of the Fig. 5 along section B-B；
Fig. 7 is top view of the middle core rod in closed configuration in Fig. 3；
Fig. 8 is sectional views of the Fig. 7 along section B-B；
Fig. 9 is the structural representation of the middle die sleeve in Fig. 3；
Figure 10 is the structural representation of the upper mold core in Fig. 3；
Figure 11 is Figure 10 side view；
Figure 12 be upsetting system after the completion of workpiece structural representation.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of the upsetting molding jig of the double-shaft shoulder form workpiece of the present invention, as shown in Figures 3 to 12, including upper mould
Covering component and lower mold assemblies, upper die component includes Upper Die-sleeve 3, upper mold core 4 and upper mould thimble 5,4 up and down setting of upper mold core,
Upper mould thimble 5 is fixedly installed；Lower mold assemblies include lower mold core 10, and lower mold core 10 is provided with the workpiece installation cavity installed for workpiece 6,
Material returned bar 11 is inserted in workpiece installation cavity from the bottom to top, and the space of the upside of material returned bar 11 is installed for workpiece 6.
Upper mold core 4 is oriented to is assemblied in Upper Die-sleeve 3 along the vertical direction, and upper mould thimble 5 is installed in upper mold core 4, upper mould top
The upper end of pin 5 is connected with pad 2 after mould, and pad 2 is fixedly connected with Upper Die-sleeve 3 after upper mould, be arranged with after upper mould on pad 2 for
The upper mold core spring 1 that core rod 4 presses, the lower end top pressure of upper mold core spring 1 is on the top surface of upper mold core 4.
At the lower port of upper mold core 4 be provided be used for guide workpiece 6 pass in and out tapered guide section 41, upper mold core 4 be used for
The outer wall that upper mold core 4 is oriented to mating part is provided with planar structure 42, and gas can be from planar structure 42 and upper mold core 4 during upsetting
Interval discharge between inwall.
The upper end of lower mold core 10 is provided with middle die sleeve 8, and middle die sleeve 8 has up big and down small bellmouth 81, bellmouth 81
In be provided be used for workpiece 6 periphery into double-shaft shoulder die cavity middle core rod 9；The lower surface of middle die sleeve 8 and lower mold core 10
Upper end is respectively provided with the inside and outside seam of docking.
In the present embodiment, the taper of the bellmouth 81 on middle die sleeve 8 is 20 degree；Middle die sleeve 8 is provided with vertically side
To extension for the connecting hole that is connected with lower mold core 10, middle die sleeve 8 and lower mold core 10 releasable connection.In other embodiment
In, middle die sleeve 8 and lower mold core 10 can also be arranged to integral structure.
Middle core rod 9 is arranged in bellmouth 81 and can moved up and down along bellmouth 81；Middle core rod 9 includes three around middle core rod
The 9 spaced core pieces 91 of axis, periphery in workpiece 6 is respectively provided with each core pieces 91 into double-shaft shoulder die cavity
Core pieces cavity 92.
The middle core rod spring 93 for being used for applying opening force to corresponding two core pieces is provided between two adjacent core pieces 91,
Middle core rod spring 93 has three, and the middle end of core rod spring 93 insertion corresponding to confession is respectively equipped with the radial sidewalls of each core pieces 91
Spring mounting hole 94.
When opening in place outside middle core rod 9, the minimum diameter D on the inner edge of middle core rod 9 is more than the double-shaft shoulder structure on workpiece 6
Maximum outside diameter d.In the present embodiment, core pieces cavity 92 is the arc-shaped cavity of 1/3rd radians.In other embodiments, also may be used
Die cavity in the form of the double-shaft shoulder die cavity on middle core rod 9 is arranged into other structures, for example, the hexagon shaft shoulder, the straight tooth-shaped shaft shoulder.
The upper surface of lower mold core 10 is supported for centering core rod 9；The top surface of middle die sleeve 8 is provided with middle core rod gland
7, the middle part of middle core rod gland 7 is provided with the upper mold core perforation passed through for upper mold core 4, and the bottom surface of middle core rod gland 7 is high to be used for centering
Core rod 9 carries out block；It is provided with along middle die sleeve 8 and radially extends on the position close to lower mold core 10 in the side wall of middle die sleeve 8
Rod radial air vent 82.
The top surface of middle core rod 9 presses for upper mold core 4, when being spaced due to existing between central core rod 9 and lower mold core 10, workpiece
6 preferentially can deform in interval, and it is impaired to easily cause middle core rod 9；In the present embodiment, when central core rod 9 is moved down in place,
The lower surface of middle core rod 9 is bonded with the upper surface of lower mold core 10, prevents that middle core rod 9 is impaired.
In use, such as Fig. 3, workpiece 6 is fitted into lower mold core 10, workpiece 6 is bar, and material returned bar 11 is propped up workpiece 6
Support；Upper die component moves downward, and upper mold core 4 pushes middle core rod 9, and inwall of the middle core rod 9 along bellmouth 81 moves down, each mould
Pellet 91 is started mutually to draw close by the radial direction pressure on top surface of bellmouth 81, and middle core rod 9 starts to shrink at.
Such as Fig. 4, after middle core rod 9 shrinks in place, workpiece 6 periphery into double-shaft shoulder die cavity, the lower surface of central core rod 9
After being contacted with the upper surface of lower mold core 10, the position of middle core rod 9 is fixed.Workpiece 6 is pressed between upper mould thimble 5 and material returned bar 11
Contracting；The length of workpiece 6 shortens and diameter becomes big, on workpiece 6 with forming double-shaft shoulder structure at the middle cooperation of core rod 9；Upsetting process
In, the gas inside middle die sleeve 8 can be from the air-vent 82 on middle die sleeve 8.
After the completion of upsetting system, Upper Die-sleeve 3 moves up, the upward top pressure workpiece 6 of material returned bar 11, and core rod 9 is to moving up during workpiece 6 drives
Dynamic, middle core rod 9 is in the presence of middle core rod spring 93 to opening；Moved on on central core rod 9 when being contacted with middle core rod gland 7, in
Core rod 9 opens in place.When middle core rod 9 is opened in place, the minimum diameter of the inner edge of middle core rod 9 is more than the double-shaft shoulder knot on workpiece 6
The maximum outside diameter of structure, it will directly can be taken out in workpiece 6 therefrom core rod 9.Compared to prior art, the system of double-shaft shoulder structure is reduced
Make difficulty, improve the upsetting efficiency of double-shaft shoulder structure.
Claims (10)
1. the upsetting molding jig of double-shaft shoulder form workpiece, including upper die component and lower mold assemblies, upper die component includes upper mold core and peace
Upper mould thimble in upper mold core, lower mold assemblies include lower mold core and the material returned bar in lower mold core, it is characterised in that：
Upsetting molding jig also includes vertically extending middle die sleeve, and dress is moved back and forth along the vertical direction in the centre bore of middle die sleeve
Equipped with middle core rod, middle core rod includes the core pieces that two or more is set around middle die sleeve axis, is respectively equipped with each core pieces
For forming the core pieces cavity of double-shaft shoulder die cavity when each core pieces are concentrated and are close in when upsetting workpiece periphery；Middle die sleeve
Centre bore, which has to each core pieces to apply during upper mold core top pressure core pieces move down, closes up the up big and down small of active force
Conical through-hole section；Lower mold core be provided be used for each core pieces it is descending in place when lower support that each core pieces are supported
Face, it is provided between adjacent core pieces and is used to apply repulsion to corresponding core pieces to force each core pieces to be scattered when middle core rod is up
Middle core rod elastic component.
2. the upsetting molding jig of double-shaft shoulder form workpiece according to claim 1, it is characterised in that：The top of the middle die sleeve
Portion, which is provided with, is used for the middle core rod gland that centering core rod carries out block, and middle core rod gland is provided with the upper mold core passed through for upper mold core and worn
Hole, the diameter of upper mold core perforation are less than the diameter of the upper end of the conical through-hole section；Middle core rod is gone upward to be connect with middle core rod gland
The minimum diameter of the inner edge of core rod is more than the maximum outside diameter for the double-shaft shoulder structure for treating upsetting in when touching.
3. the upsetting molding jig of double-shaft shoulder form workpiece according to claim 1, it is characterised in that：The top surface of the lower mold core
Form the supporting surface, intermediate die put be provided with close to the position of the supporting surface radially extended along middle die sleeve with it is described
The rod radial air vent of conical through-hole section connection.
4. the upsetting molding jig of double-shaft shoulder form workpiece according to claim 2, it is characterised in that：The middle core rod gland,
Middle die sleeve and lower mold core, which are provided with corresponding connecting hole, connecting hole up and down, to be had around spaced two of middle die sleeve axis
More than.
5. the upsetting molding jig of the double-shaft shoulder form workpiece according to claim 1 or 2 or 3 or 4, it is characterised in that：The mould
Pellet has three pieces set at equal intervals around middle die sleeve axis.
6. the upsetting molding jig of double-shaft shoulder form workpiece according to claim 5, it is characterised in that：The middle core rod elastic component
Formed by middle core rod spring, the end insertion of core rod spring in supplying is respectively equipped with the opposing sidewalls of adjacent two core pieces
The spring mounting hole of installation.
7. the upsetting molding jig of the double-shaft shoulder form workpiece according to claim 1 or 2 or 3 or 4, it is characterised in that：On described
Membrane module includes Upper Die-sleeve, and upper mold core is oriented to is assemblied in Upper Die-sleeve along the vertical direction, and upper mold core, which is connected with, to be used for upper mold core
Apply the upper mold core spring of down force；Upper mould thimble is fixedly connected with Upper Die-sleeve, and upper mold core, which is provided with, to be used to avoid mould
The upper mould thimble perforation of thimble.
8. the upsetting molding jig of double-shaft shoulder form workpiece according to claim 7, it is characterised in that：The top of the Upper Die-sleeve
Provided with being padded after the upper mould being fixedly connected for upper mould thimble, the upper mold core spring pads after being installed on mould.
9. the upsetting molding jig of double-shaft shoulder form workpiece according to claim 7, it is characterised in that：The upper mould thimble perforation
Lower aperture at be provided with from top to bottom gradually increase be used for guide treat upsetting workpiece enter upper mold core tapered guide section.
10. the upsetting molding jig of double-shaft shoulder form workpiece according to claim 7, it is characterised in that：The week of the upper mold core
It is provided with along the axially extending planar structure of upper mold core, is formed between planar structure and Upper Die-sleeve vertically extending to wall
Axial vent holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708326.3A CN107520388A (en) | 2017-08-17 | 2017-08-17 | The upsetting molding jig of double-shaft shoulder form workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708326.3A CN107520388A (en) | 2017-08-17 | 2017-08-17 | The upsetting molding jig of double-shaft shoulder form workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107520388A true CN107520388A (en) | 2017-12-29 |
Family
ID=60681472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710708326.3A Pending CN107520388A (en) | 2017-08-17 | 2017-08-17 | The upsetting molding jig of double-shaft shoulder form workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107520388A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002096137A (en) * | 2000-09-19 | 2002-04-02 | Nsk Ltd | Helical pinion gear and method and apparatus for producing it |
| CN201711483U (en) * | 2010-06-17 | 2011-01-19 | 鹏驰五金制品有限公司 | Turning-free molding mould for expansion bolt |
| CN202123185U (en) * | 2011-06-15 | 2012-01-25 | 浙江振华紧固件有限公司 | Cold heading forming mold |
| CN203018667U (en) * | 2012-08-30 | 2013-06-26 | 太仓一标精密模具有限公司 | Half split die easy to strip |
| CN203390144U (en) * | 2013-08-23 | 2014-01-15 | 浙江振华紧固件有限公司 | Bolt upsetting mould |
| JP5451059B2 (en) * | 2008-12-25 | 2014-03-26 | 株式会社ニチダイ | Mold mechanism, manufacturing method, and multi-axis component |
| KR101435933B1 (en) * | 2013-04-15 | 2014-09-01 | (주) 호창엠에프 | The mold apparatus for manufacturing under drive brake piston and control method thereof |
| CN203972724U (en) * | 2014-07-15 | 2014-12-03 | 广州小出钢管有限公司 | A kind of automobile double flange shaped piece cold-heading folding mould |
| CN104646581A (en) * | 2015-03-10 | 2015-05-27 | 富奥汽车零部件股份有限公司 | Manufacturing method and mold structure of oversized-head pole bolt |
| CN105499478A (en) * | 2015-11-30 | 2016-04-20 | 贵州航天新力铸锻有限责任公司 | Processing method for crossed forged piece for supporting ITER magnet |
| CN205436980U (en) * | 2016-02-19 | 2016-08-10 | 苏州航天紧固件有限公司 | High -strength bolt jumping -up mould |
| CN105945194A (en) * | 2016-03-08 | 2016-09-21 | 安徽博斯特科技有限公司 | Clutch cylinder sleeve forging die |
| CN205732766U (en) * | 2016-05-09 | 2016-11-30 | 湖州美普兰精密锻造有限责任公司 | A kind of double cog blank mould |
| CN205732764U (en) * | 2016-05-04 | 2016-11-30 | 湖州美普兰精密锻造有限责任公司 | Drift hammer and perforation die fit structure |
| CN206122609U (en) * | 2016-08-31 | 2017-04-26 | 内德史罗夫紧固件（昆山）有限公司 | A dysmorphism upset forging forming die |
| CN106862460A (en) * | 2017-03-31 | 2017-06-20 | 西安建筑科技大学 | A kind of inaccessible finish forge device of step axis blank |
-
2017
- 2017-08-17 CN CN201710708326.3A patent/CN107520388A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002096137A (en) * | 2000-09-19 | 2002-04-02 | Nsk Ltd | Helical pinion gear and method and apparatus for producing it |
| JP5451059B2 (en) * | 2008-12-25 | 2014-03-26 | 株式会社ニチダイ | Mold mechanism, manufacturing method, and multi-axis component |
| CN201711483U (en) * | 2010-06-17 | 2011-01-19 | 鹏驰五金制品有限公司 | Turning-free molding mould for expansion bolt |
| CN202123185U (en) * | 2011-06-15 | 2012-01-25 | 浙江振华紧固件有限公司 | Cold heading forming mold |
| CN203018667U (en) * | 2012-08-30 | 2013-06-26 | 太仓一标精密模具有限公司 | Half split die easy to strip |
| KR101435933B1 (en) * | 2013-04-15 | 2014-09-01 | (주) 호창엠에프 | The mold apparatus for manufacturing under drive brake piston and control method thereof |
| CN203390144U (en) * | 2013-08-23 | 2014-01-15 | 浙江振华紧固件有限公司 | Bolt upsetting mould |
| CN203972724U (en) * | 2014-07-15 | 2014-12-03 | 广州小出钢管有限公司 | A kind of automobile double flange shaped piece cold-heading folding mould |
| CN104646581A (en) * | 2015-03-10 | 2015-05-27 | 富奥汽车零部件股份有限公司 | Manufacturing method and mold structure of oversized-head pole bolt |
| CN105499478A (en) * | 2015-11-30 | 2016-04-20 | 贵州航天新力铸锻有限责任公司 | Processing method for crossed forged piece for supporting ITER magnet |
| CN205436980U (en) * | 2016-02-19 | 2016-08-10 | 苏州航天紧固件有限公司 | High -strength bolt jumping -up mould |
| CN105945194A (en) * | 2016-03-08 | 2016-09-21 | 安徽博斯特科技有限公司 | Clutch cylinder sleeve forging die |
| CN205732764U (en) * | 2016-05-04 | 2016-11-30 | 湖州美普兰精密锻造有限责任公司 | Drift hammer and perforation die fit structure |
| CN205732766U (en) * | 2016-05-09 | 2016-11-30 | 湖州美普兰精密锻造有限责任公司 | A kind of double cog blank mould |
| CN206122609U (en) * | 2016-08-31 | 2017-04-26 | 内德史罗夫紧固件（昆山）有限公司 | A dysmorphism upset forging forming die |
| CN106862460A (en) * | 2017-03-31 | 2017-06-20 | 西安建筑科技大学 | A kind of inaccessible finish forge device of step axis blank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110788193B (en) | Controllable medium cold stamping forming process method and die structure thereof | |
| CN107649632A (en) | A kind of upsetting molding jig of double-shaft shoulder form workpiece | |
| CN208033448U (en) | Cold extrusion deep-drawing structure | |
| CN204584041U (en) | A kind of T iron punching sizing stretches mould | |
| CN107520388A (en) | The upsetting molding jig of double-shaft shoulder form workpiece | |
| CN106078299B (en) | A kind of elastic fixture mechanism | |
| CN202301488U (en) | Self-lubricating joint bearing moulding mould | |
| CN104325007B (en) | High-strength steel deep-draw part side piercing die and processing method thereof | |
| CN206998221U (en) | A kind of riveted construction | |
| CN207071683U (en) | A kind of belt pulley shaping tooling | |
| CN108380806A (en) | A kind of undershoot header structure with scalable material returning sleeve | |
| CN101767174A (en) | Loose tooling upsetting device of continuous upsetting heads at both ends of long rod material | |
| CN203044671U (en) | Pipe fitting local hole shrinkage stamping die | |
| CN208743483U (en) | A kind of deep-drawing shaping die of automobile nut plate | |
| CN107187099A (en) | For isostatic pressing process flexible die charging aperture fast sealing method and device | |
| CN203548579U (en) | Separated inner ring of tapered roller bearing | |
| CN207806375U (en) | Metal disk wire-drawing die | |
| CN205926845U (en) | Drawing die | |
| CN206241082U (en) | A kind of thin-walled back taper cupping tool | |
| CN203541290U (en) | Opening expanding die for electronic connector contact head heat treatment | |
| CN214350688U (en) | Rubber bushing press fitting tool | |
| CN220760673U (en) | Cone local forming device | |
| CN204975176U (en) | High -speed forge hot moulded product shedder | |
| CN103639284A (en) | Cold drawing, angle pressing and nail punching process of front clamping plate | |
| CN205587591U (en) | Novel cold -heading device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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: 20171229 |
|
| RJ01 | Rejection of invention patent application after publication |