CN110052555A - A kind of cold forming method and its multi-station mold of interior cubic sleeve nut - Google Patents
A kind of cold forming method and its multi-station mold of interior cubic sleeve nut Download PDFInfo
- Publication number
- CN110052555A CN110052555A CN201910461856.1A CN201910461856A CN110052555A CN 110052555 A CN110052555 A CN 110052555A CN 201910461856 A CN201910461856 A CN 201910461856A CN 110052555 A CN110052555 A CN 110052555A
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- Prior art keywords
- bottom knockout
- die
- sleeve
- punch
- liftout
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- 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
- B21D53/00—Making other particular articles
- B21D53/24—Making other particular articles nuts or like thread-engaging members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
A kind of cold forming method and its multi-station mold of interior cubic sleeve nut, the continuous cold forming process of multistation is made of six shaping, preform, Compound Extrusion, floating enclosed square hole, outer straight-tooth and punching processes, each process once completes the process on multi-station mold, production efficiency up to 40-50 part/point, reduce auxiliary process and turnery processing, it realizes efficiently production, reduces production cost.
Description
Technical field
The invention belongs to sleeve nut's cold forming field, especially in one kind the cold forming method of cubic sleeve nut and its
Multi-station mold.
Background technique
The outer surface of the structure of cubic sleeve nut 8 in as shown in Figure 1, interior four directions sleeve nut is in step-like, top bar
801 overall diameter be greater than get out of a predicament or an embarrassing situation 802 outside diameter and the two connected by transition part 803, interior four directions sleeve nut's is interior
Chamber is divided into interior circular hole 804, lightening hole 805, square hole 806 from top to bottom, and square hole periphery as shown in Figure 2 is equipped with more
A straight-tooth 807, straight-tooth are in groove-like；This abnormity nut is new deisgn product, and structural volume is small, and assembly space is small, lightweight, tightly
Tenacity is high.
There is not ready-made cold forming process at present, mostly uses point sequence extrusion molding or automatic cold forming plus other auxiliary
Processing, process is more, and long flow path, production efficiency is low, and processing cost is high.
Summary of the invention
The present invention provides the cold forming methods and its multi-station mold of sleeve nut cubic in one kind, are connected using multistation
Continuous cold forming process, completes time processing, improves production efficiency, reduces cost.
In order to solve the above-mentioned technical problem, the technical scheme is that
A kind of cold forming method of interior cubic sleeve nut, the specific steps are as follows:
(1) shaping: diameter biscuit is sent into multi-station mold, the both ends of the surface of the primary smooth biscuit of sizing die energy；
(2) preform: the biscuit after shaping is sent into multi-station mold, preform mould can squeeze out recessed in biscuit both ends of the surface
The corner portion of cave and biscuit lower edge；
(3) Compound Extrusion: preformed blank is sent into multi-station mold, compound extruding die can squeeze out on blank simultaneously
Interior circular hole and step-like shape；
(4) it squeezes square hole: the blank after Compound Extrusion being sent into multi-station mold, floating enclosed four directions casement can squeeze out
Square hole in blank lower end；
(5) it squeezes outer straight-tooth: the blank containing square hole being sent into multi-station mold, outer straight-tooth mould can squeeze out outside square hole
Straight-tooth on circle；
(6) it punching: will be sent into multi-station mold with the blank of outer straight-tooth, piercing die can stamp out the lightening hole in blank.
Above-mentioned technical proposal is further limited, the corner portion in the preliminary forming step be it is arc-shaped, this structure is not
Appearance burr is optimal design effect.
Above-mentioned technical proposal is further limited, the preliminary selection raw material outside diameter d0, length L0, meet L as far as possible0/
d0>=0.5, each station is to be put into convenient for upper track blank, takes from a sequence to six sequences its crest clearance and successively amplifies 0.05-0.10mm,
Internal diameter gap shrinks 0.05-0.10mm calculates each process blank dimension according to constancy of volume；Advantage: this ensure that every
The quality that procedure processes at one time.
A kind of cold forming multi-station mold of interior cubic sleeve nut, it is characterised in that: including setting gradually from right to left
There are sizing die, preform mould, compound extruding die, floating enclosed four directions casement, outer straight-tooth mould and piercing die, sizing die is for smooth
The both ends of the surface of biscuit, preform mould are used to squeeze the depression and lower end corner portion on biscuit both ends, and compound extruding die is for squeezing
The interior circular hole of sleeve nut and step-like shape, floating enclosed four directions casement are used to squeeze the square hole of sleeve nut, outer straight-tooth
Mould is used to squeeze the straight-tooth in square hole outer circle, and piercing die is used to stamp out the lightening hole in sleeve nut.
Above-mentioned technical proposal is further limited, floating enclosed four directions casement is made of upper die and lower die, upper mold
Structure are as follows: including upper shuttering, upper punch, upper liftout sleeve, upper ejector, the rear end of punch die shell and upper punch is connected, upper top
Expect that sleeve is arranged on upper punch, the liftout end of upper liftout sleeve and the pressed end of upper punch can stretch to the forming cavity of lower die
Interior, upper ejector is fixed on upper trimming die shell, and upper liftout sleeve can be slided by upper ejector on upper punch；The structure of lower die
Are as follows: including lower formwork, floating die, floating spring, punch holder, square hole formed punch, bottom knockout sleeve, bottom knockout device, floating die is floated
Spring, the punch holder of moving are set gradually from front to back in lower formwork, and floating die can be floated by floating spring in lower formwork, position
It is fixed in punch holder in the square hole formed punch in floating spring, bottom knockout sleeve is arranged on square hole formed punch, square hole punching
The pressed end of head and the liftout end of bottom knockout sleeve are located in the forming cavity of floating die, and bottom knockout device is fixed in punch holder, under
Liftout sleeve can be slided by bottom knockout device on square hole formed punch.
Above-mentioned technical proposal is further limited, the upper ejector includes successively setting from front to back in upper trimming die shell
Upper punch seat, upper liftout key seat, the upper ejector beam guide holder set, upper punch seat is for the fixed upper punching being located in upper liftout sleeve
Head, upper liftout key seat is interior to be equipped with upper jigger pin, and the front end of upper jigger pin can be resisted against upper liftout set after being pierced by out of upper punch seat
On the rear end face of cylinder, the rear end of upper jigger pin is located in ejector beam guide holder, and upper ejector beam is equipped in upper ejector beam guide holder, on
Ejector beam can push liftout receiver to carry out liftout movement by jigger pin.
Above-mentioned technical proposal is further limited, the bottom knockout device is by bottom knockout key seat, bottom knockout pin, bottom knockout bar
Guide cylinder, bottom knockout bar, bottom knockout spring, bottom knockout key seat are fixedly connected with punch holder, and bottom knockout pins position is in bottom knockout key seat
Interior, the liftout end of bottom knockout pin can be resisted against on the end face of bottom knockout sleeve after being pierced by out of punch holder, bottom knockout bar guide cylinder
It is fixedly connected with bottom knockout key seat, bottom knockout bar and bottom knockout spring are located in bottom knockout bar guide cylinder, under bottom knockout bar passes through
Liftout spring can successively push bottom knockout pin, bottom knockout sleeve.
The utility model has the advantages that the present invention uses the continuous cold forming process of multistation, each process is processed at one time, production
Efficiency up to 40-50 part/point, reduce auxiliary process and turnery processing, realize efficiently production, reduce production cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the square hole nut in background technique.
Fig. 2 is the schematic cross-section of the nut four directions nose end in Fig. 1.
Fig. 3 is the biscuit schematic diagram in the present invention after shaping.
Fig. 4 is preforming rear blank schematic diagram in the present invention.
Fig. 5 is blank schematic diagram after Compound Extrusion in the present invention.
Fig. 6 is that blank schematic diagram after square hole is squeezed in the present invention.
Fig. 7 is that blank schematic diagram after outer straight-tooth is squeezed in the present invention.
Fig. 8 is multi-station mold structural schematic diagram in the present invention.
Fig. 9 is floating enclosed square hole mode structure schematic diagram in the present invention.
Figure 10 is the upper die structure schematic diagram of Fig. 9.
Figure 11 is the lower die structure schematic diagram of Fig. 9.
Figure 12 is the usage state diagram of Fig. 9.
Specific embodiment
Final blank drawing is designed according to product size, determination needs punching recess position and thickness, calculates its material that need to be used
Material accumulates V, and according to Plastic Forming blank constancy of volume principle, preliminary raw material outer diameter of choosing is d0, length L0, meet as far as possible
L0/d0>=0.5, to guarantee to cut off quality；Each station is to be put into convenient for upper track blank, from a sequence to six sequences its crest clearance take according to
Secondary amplification 0.05-0.10mm, internal diameter gap shrinks 0.05-0.10mm, 3,4,5 sequence blank depth sizes are identical, not according to volume
Change calculates each process blank dimension；The raw material must carry out spheroidizing processing and be allowed to uniform, spherical crystal grain
Structure, metallographic structure require 4~6 grades；140~160HB of hardness range；For material surface through phosphorus saponification process, phosphate coating is uniform, causes
It is close.
A kind of cold forming method of interior cubic sleeve nut, the specific steps are as follows:
(1) shaping: diameter biscuit is sent into multi-station mold, the both ends of the surface of the primary smooth biscuit of sizing die energy, such as Fig. 3 institute
Show；
(2) preform: the biscuit after shaping is sent into multi-station mold, preform mould can squeeze out recessed in biscuit both ends of the surface
The corner portion of cave and biscuit lower edge；Corner portion in the preliminary forming step be it is arc-shaped, as shown in Figure 4；
(3) Compound Extrusion: preformed blank is sent into multi-station mold, compound extruding die can squeeze out on blank simultaneously
Interior circular hole and step-like shape, as shown in Figure 5；
(4) it squeezes square hole: the blank after Compound Extrusion being sent into multi-station mold, floating enclosed four directions casement can squeeze out
Square hole in blank lower end, as shown in Figure 6；
(5) it squeezes outer straight-tooth: the blank containing square hole being sent into multi-station mold, outer straight-tooth mould can squeeze out outside square hole
Straight-tooth on disc, as shown in Figure 2；
(6) punching: will be sent into multi-station mold with the blank of outer straight-tooth, and piercing die can stamp out the lightening hole in blank,
As shown in Figure 1.
As shown in figure 8, in one kind cubic sleeve nut cold forming multi-station mold, including be disposed with from right to left
Sizing die 1, preform mould 2, compound extruding die 3, floating enclosed four directions casement 4, outer straight-tooth mould 5 and piercing die 6, sizing die is used for
The both ends of the surface of smooth biscuit, the depression and lower end corner portion, compound extruding die that preform mould is used to squeeze on biscuit both ends are used for
The interior circular hole and step-like shape, floating enclosed four directions casement for squeezing sleeve nut are used to squeeze the square hole of sleeve nut, outside
Straight-tooth mould is used to squeeze the straight-tooth in square hole outer circle, and piercing die is used to stamp out the lightening hole in sleeve nut；
As shown in figure 9, floating enclosed four directions casement 4 is made of upper die and lower die, the structure of upper mold are as follows: including upper shuttering
401, the rear end of upper punch 402, upper liftout sleeve 403, upper ejector 404, punch die shell and upper punch connects, and upper liftout sleeve is set
It sets on upper punch, the liftout end of upper liftout sleeve and the pressed end of upper punch can stretch in the forming cavity of lower die, upper liftout
Device is fixed on upper trimming die shell, and upper liftout sleeve can be slided by upper ejector on upper punch；The structure of lower die are as follows: including under
Formwork 405, floating die 406, floating spring 407, punch holder 408, square hole formed punch 409, bottom knockout sleeve 410, bottom knockout device
411, floating die, floating spring, punch holder are set gradually from front to back in lower formwork and punch holder is fixedly connected with lower formwork,
Floating die can be floated by floating spring in lower formwork, and the square hole formed punch in floating spring is fixed in punch holder,
Bottom knockout sleeve is arranged on square hole formed punch, and the pressed end of square hole formed punch and the liftout end of bottom knockout sleeve are located at floating die
Forming cavity in, bottom knockout device is fixed in punch holder, and bottom knockout sleeve can be slided on square hole formed punch by bottom knockout device；
As shown in Figure 10, the upper ejector 404 include the upper punch seat 4041 set gradually from front to back in upper trimming die shell,
The fixed structure of upper liftout key seat 4042, upper ejector beam guide holder 4043 composition, upper punch seat are located at upper liftout set for fixed
Upper punch in cylinder, the liftout end of liftout sleeve and the pressed end of upper punch are extended out of upper trimming die shell, in upper liftout key seat
Equipped with the upper jigger pin 4044 that can make to slide, the front end of upper jigger pin can be resisted against upper liftout sleeve after being pierced by out of upper punch seat
The rear end of pedestal on rear end, upper jigger pin is located in ejector beam guide holder, and being equipped in upper ejector beam guide holder can make to slide
Upper ejector beam 4045, upper ejector beam bar can push liftout receiver to carry out liftout movement by jigger pin；
As shown in figure 11, the bottom knockout device 411 is by bottom knockout key seat 4111, bottom knockout pin 4112, bottom knockout bar guide cylinder
4113, bottom knockout bar 4114, bottom knockout spring 4115, bottom knockout key seat are fixedly connected with punch holder, and bottom knockout pins position is in Xia Ding
Expect in key seat, the liftout end of bottom knockout pin can be resisted against the pedestal in bottom knockout sleeve rear end, lower top after being pierced by out of punch holder
Material bar guide cylinder is fixedly connected with bottom knockout key seat, and bottom knockout bar and bottom knockout spring are located in bottom knockout bar guide cylinder, lower top
Material bar can successively push bottom knockout pin, bottom knockout sleeve to carry out liftout movement by bottom knockout spring；
The sizing die, preform mould, compound extruding die, outer straight-tooth mould, the structure of piercing die are identical, by upper die and lower die group
At only respective forming cavity is not identical；Sizing die, preform mould, compound extruding die, outer straight-tooth mould, piercing die belong to
In the prior art, structure does not elaborate；The sizing die, preform mould, compound extruding die, floating enclosed square hole
The upper mold of mould, outer straight-tooth mould and piercing die is fixed on the bottom surface of cope plate according to ordered arrangement, sizing die, preform
Mould, compound extruding die, floating enclosed four directions casement, outer straight-tooth mould and piercing die lower die be fixed on down according to ordered arrangement
In template, cope plate is connect by guide post with lower template.
Multi-station mold working principle: the present invention includes sizing die, preform mould, compound extruding die, floating enclosed four directions
Six casement, outer straight-tooth mould and piercing die stations will by the blank knife bar of cutting mechanism after disk round wires material is sent into device Host
The biscuit of cutting is fed through the first station, successively shaping, preform, Compound Extrusion, cubic hole forming, the molding of outer straight-tooth, punching
Six one machines of station are completed, and the workpiece of each station is automatically delivered by an enclosed clamp.As shown in figure 12, the floating enclosed four
The working principle of square hole mould: upper mold is pushed into blank 7 and enters in the forming cavity of lower die, i.e. the pressed end of upper punch enters blank circular hole
Interior to be used to position blank, the liftout end of upper liftout sleeve is resisted against on blank end face；After blank enters forming cavity, the lower top of lower die
The liftout end of material sleeve is resisted against on the lower end surface of blank by bottom knockout device, and the pressed end of square hole formed punch is located at bottom knockout
In sleeve；Upper mold increases stroke, and due to the step effect on blank, blank moves together with floating die, and floating spring is compressed；
When further moving ahead, the pressed end of square hole formed punch is pierced by out of bottom knockout sleeve, and blank contacts the pressed end of square hole formed punch,
Start to squeeze, since the speed of metal flow is greater than the speed that upper mold is advanced, at this moment just will appear blank and floating die has relatively
The trend of movement, floating spring provide elastic force and prevent this movement；After blank forming, upper mold is retreated, and bottom knockout bar passes through bottom knockout
Spring can successively push bottom knockout pin, bottom knockout sleeve return, and molding blank is detached from upper mold and lower die, convex in equipment
Wheel pushes ejector beam, and ejector beam successively pushes jigger pin, upper liftout sleeve to release blank from upper mold.
Innovative point of the invention: 1) for convenient for automatically continuously shaping, the process for squeezing internal square hole is placed on outer step and interior
It after the process of hole, avoids in clamp transmission, square hole misalignment undershoot carry out forming can not；2) floating enclosed four directions casement:
Mold is made of hard alloy, and blank is completely pressed into floating die forming cavity using interference mode, the selection of spring, in sky
Between meet in the case where, should ensure that blank and floating die without opposite sliding, when avoiding squeezing square hole at step transition again by
It squeezes, transition position is caused to occur being superimposed the dual steps problem of shape.
Do not elaborate place in this specification, is technology well known in the art.
Claims (7)
1. the cold forming method of cubic sleeve nut in one kind, the specific steps are as follows:
Shaping: diameter biscuit is sent into multi-station mold, the both ends of the surface of the primary smooth biscuit of sizing die energy；
(2) preform: the biscuit after shaping is sent into multi-station mold, preform mould can squeeze out recessed in biscuit both ends of the surface
The corner portion of cave and biscuit lower edge；
(3) Compound Extrusion: preformed blank is sent into multi-station mold, compound extruding die can squeeze out on blank simultaneously
Interior circular hole and step-like shape；
(4) it squeezes square hole: the blank after Compound Extrusion being sent into multi-station mold, floating enclosed four directions casement can squeeze out
Square hole in blank lower end；
(5) it squeezes outer straight-tooth: the blank containing square hole being sent into multi-station mold, outer straight-tooth mould can squeeze out outside square hole
Straight-tooth on circle；
(6) it punching: will be sent into multi-station mold with the blank of outer straight-tooth, piercing die can stamp out the lightening hole in blank.
2. according to claim 1 in one kind cubic sleeve nut cold forming method, the chamfering in the preliminary forming step
Portion is arc-shaped.
3. the cold forming method of cubic sleeve nut in one kind according to claim 1 or claim 2, the preliminary selection raw material
Outer diameter is d0, length L0, meet L as far as possible0/d0>=0.5, each station is to be put into convenient for upper track blank, from a sequence to six sequences outside it
Diameter gap, which takes, successively amplifies 0.05-0.10mm, internal diameter gap shrinks 0.05-0.10mm.
4. the cold forming multi-station mold of cubic sleeve nut in one kind, it is characterised in that: including being disposed with from right to left
Sizing die, preform mould, compound extruding die, floating enclosed four directions casement, outer straight-tooth mould and piercing die, sizing die are used for flattening disc
The both ends of the surface of material, preform mould are used to squeeze the depression and lower end corner portion on biscuit both ends, and compound extruding die is used for extruded sleeve
The interior circular hole of cylinder nut and step-like shape, floating enclosed four directions casement are used to squeeze the square hole of sleeve nut, outer straight-tooth mould
For squeezing the straight-tooth in square hole outer circle, piercing die is used to stamp out the lightening hole in sleeve nut.
5. according to claim 4 in one kind cubic sleeve nut cold forming multi-station mold, it is characterised in that: it is described floating
Dynamic enclosed four directions casement is made of upper die and lower die, the structure of upper mold are as follows: including upper shuttering, upper punch, upper liftout sleeve, upper top
The rear end of glassware, punch die shell and upper punch connects, and upper liftout sleeve is arranged on upper punch, the liftout end of upper liftout sleeve and upper
The pressed end of formed punch can stretch in the forming cavity of lower die, and upper ejector is fixed on upper trimming die shell, and upper liftout sleeve passes through upper
Ejector can slide on upper punch；The structure of lower die are as follows: including lower formwork, floating die, floating spring, punch holder, square hole
Formed punch, bottom knockout sleeve, bottom knockout device, floating die, floating spring, punch holder are set gradually from front to back in lower formwork, are floated
Dynamic model can be floated by floating spring in lower formwork, and the square hole formed punch in floating spring is fixed in punch holder, under
Liftout sleeve is arranged on square hole formed punch, and the pressed end of square hole formed punch and the liftout end of bottom knockout sleeve are located at floating die
In forming cavity, bottom knockout device is fixed in punch holder, and bottom knockout sleeve can be slided by bottom knockout device on square hole formed punch.
6. according to claim 5 in one kind cubic sleeve nut cold forming multi-station mold, it is characterised in that: on described
Ejector includes the upper punch seat set gradually from front to back in upper trimming die shell, upper liftout key seat, upper ejector beam guide holder, on
Punch holder is equipped with upper jigger pin for the fixed upper punch being located in upper liftout sleeve in upper liftout key seat, before upper jigger pin
End can be resisted against on the rear end face of upper liftout sleeve after being pierced by out of upper punch seat, and the rear end of upper jigger pin is located at ejector beam guiding
In seat, upper ejector beam is equipped in upper ejector beam guide holder, upper ejector beam can push liftout receiver to be pushed up by jigger pin
Material movement.
7. according to the cold forming multi-station mold of cubic sleeve nut in the described one kind of claim 5 or 6, it is characterised in that: institute
Bottom knockout device is stated by bottom knockout key seat, bottom knockout pin, bottom knockout bar guide cylinder, bottom knockout bar, bottom knockout spring, bottom knockout key seat
It is fixedly connected with punch holder, bottom knockout pins position is in bottom knockout key seat, energy after the liftout end of bottom knockout pin is pierced by out of punch holder
It is resisted against on the end face of bottom knockout sleeve, bottom knockout bar guide cylinder is fixedly connected with bottom knockout key seat, bottom knockout bar and bottom knockout
Spring is located in bottom knockout bar guide cylinder, and bottom knockout bar can successively push bottom knockout pin, bottom knockout sleeve by bottom knockout spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910461856.1A CN110052555A (en) | 2019-05-30 | 2019-05-30 | A kind of cold forming method and its multi-station mold of interior cubic sleeve nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910461856.1A CN110052555A (en) | 2019-05-30 | 2019-05-30 | A kind of cold forming method and its multi-station mold of interior cubic sleeve nut |
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| Publication Number | Publication Date |
|---|---|
| CN110052555A true CN110052555A (en) | 2019-07-26 |
Family
ID=67325161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910461856.1A Pending CN110052555A (en) | 2019-05-30 | 2019-05-30 | A kind of cold forming method and its multi-station mold of interior cubic sleeve nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110052555A (en) |
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| CN1268414A (en) * | 1999-03-26 | 2000-10-04 | 贵州高强度螺栓厂 | Technology for producing polygonal aluminium nut by using polygonal hollow aluminium blank through cold extrusion |
| CN2459112Y (en) * | 2000-09-29 | 2001-11-14 | 长春汽车材料研究所 | Die for moulding end pipe of car steering shaft |
| CN201618746U (en) * | 2010-02-11 | 2010-11-03 | 浙江三和机电科技有限公司 | Cold extrusion forming mold of piston pin oil press |
| JP2014198346A (en) * | 2013-03-15 | 2014-10-23 | 日本特殊陶業株式会社 | Method of manufacturing different diameter cylindrical molding by cold forging, and method of manufacturing main fitting for gas sensor |
| CN104668324A (en) * | 2015-02-06 | 2015-06-03 | 舟山市7412工厂 | Forming method for double-end stud blank |
| CN106625372A (en) * | 2016-12-19 | 2017-05-10 | 宁波斯耐奇金属制品有限公司 | Sleeve and manufacturing method thereof |
| CN107900222A (en) * | 2017-11-30 | 2018-04-13 | 重庆标准件工业有限责任公司 | Hexagon flange bolt double-clicks single-station molding die |
| CN109382634A (en) * | 2018-11-09 | 2019-02-26 | 宾科汽车紧固件（昆山）有限公司 | The shaping mechanism and forming method of electronic parking adjusting nut |
| CN209935740U (en) * | 2019-05-30 | 2020-01-14 | 东风汽车紧固件有限公司 | Cold forming multi-station die for inner square sleeve nut |
-
2019
- 2019-05-30 CN CN201910461856.1A patent/CN110052555A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100078A (en) * | 1985-04-01 | 1986-07-16 | 清华大学 | Jumping-up and punching process integration and mould |
| CN1268414A (en) * | 1999-03-26 | 2000-10-04 | 贵州高强度螺栓厂 | Technology for producing polygonal aluminium nut by using polygonal hollow aluminium blank through cold extrusion |
| CN2459112Y (en) * | 2000-09-29 | 2001-11-14 | 长春汽车材料研究所 | Die for moulding end pipe of car steering shaft |
| CN201618746U (en) * | 2010-02-11 | 2010-11-03 | 浙江三和机电科技有限公司 | Cold extrusion forming mold of piston pin oil press |
| JP2014198346A (en) * | 2013-03-15 | 2014-10-23 | 日本特殊陶業株式会社 | Method of manufacturing different diameter cylindrical molding by cold forging, and method of manufacturing main fitting for gas sensor |
| CN104668324A (en) * | 2015-02-06 | 2015-06-03 | 舟山市7412工厂 | Forming method for double-end stud blank |
| CN106625372A (en) * | 2016-12-19 | 2017-05-10 | 宁波斯耐奇金属制品有限公司 | Sleeve and manufacturing method thereof |
| CN107900222A (en) * | 2017-11-30 | 2018-04-13 | 重庆标准件工业有限责任公司 | Hexagon flange bolt double-clicks single-station molding die |
| CN109382634A (en) * | 2018-11-09 | 2019-02-26 | 宾科汽车紧固件（昆山）有限公司 | The shaping mechanism and forming method of electronic parking adjusting nut |
| CN209935740U (en) * | 2019-05-30 | 2020-01-14 | 东风汽车紧固件有限公司 | Cold forming multi-station die for inner square sleeve nut |
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