CN107931413A - The hot finish forge punching die of Car Change-speed Gear Box Binding Gear - Google Patents
The hot finish forge punching die of Car Change-speed Gear Box Binding Gear Download PDFInfo
- Publication number
- CN107931413A CN107931413A CN201711388874.9A CN201711388874A CN107931413A CN 107931413 A CN107931413 A CN 107931413A CN 201711388874 A CN201711388874 A CN 201711388874A CN 107931413 A CN107931413 A CN 107931413A
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- Prior art keywords
- upper mold
- die
- punching
- punch
- lower die
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- 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.)
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Links
- 238000004080 punching Methods 0.000 title claims abstract description 47
- 238000005242 forging Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 10
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 22
- 238000005553 drilling Methods 0.000 abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 5
- 229910052742 iron Inorganic materials 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- 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
- B21D45/04—Ejecting devices interrelated with motion of tool
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention relates to a kind of hot finish forge punching die of Car Change-speed Gear Box Binding Gear, there is upper mold seat and corresponding with upper mold seat and be fixed on the die holder in lower template；Punching lower die is socketed with lower die ejector beam, lower die ejector beam is hollow cylinder, and punching recess therefrom falls discharge；What is set in cope plate has nitrogen gas spring, by coupling upper knock-pin, upper ejection push plate, upper mold push rod and upper mold overcoat, is applied on punch upper die, pressure-pad-force is provided in punch process, stripping force is provided at the end of punching；Upper mold push rod sequentially passes through the pilot hole of the pilot hole of backing plate and upper mold fixing sleeve in upper mold from top to bottom；Punch upper die is fitted between upper molded plate and upper mold overcoat, and is assemblied in by fastening bolt on three upper mold push rods.The present invention realizes the hot fine blanking hole of conjunction gear, eliminates drilling operating, simplifies production procedure, not only substantially increases the production efficiency of product, and the iron filings for also having prevented drilling operating generation weigh the mass defect of forging surface generation wounded.
Description
Technical field
The present invention relates to hot precision forging die, more particularly to a kind of hot finish forge punching die of Car Change-speed Gear Box Binding Gear.
Background technology
Conjunction gear part is the key components and parts in gearbox, played between driven gear and synchronizer a synchronization and
Mitigate the effect of shifting shock.At present, the production technology of such part is：Hot forging forming → car overlap → drilling → the pre-heat treatment
→ ball blast → finishing.Although drilling is one of simple production process, the operating procedures such as clamping, locking, drilling, discharging,
And drilling inevitably produces iron filings, mass defect, the every time drilling such as easily cause to weigh wounded to piece surface and terminate all to need
Clear up chucking surface iron filings so that its production efficiency is low, is always a bottleneck process in conjunction gear production process, nothing
Method is met customer need, and constrains the market competitiveness of enterprise.With the development of China's hot forging technology, multistation hot forging is certainly
The application of dynamic metaplasia producing line is more and more extensive, if can realize after conjunction gear hot forging forming, direct hot piercing, reaches hole size
To detail drawing requirement, the production efficiency of product will be greatly improved.
The content of the invention
The purpose of the present invention is overcome defect existing in the prior art, there is provided one kind realize after conjunction gear hot forging forming
The directly hot fine blanking hole of production line, removes gross weight, and hole size is reached detail drawing requirement.The design of the punching die is real
Apply so that eliminate the drilling operating in product original production process, simplify production procedure, not only substantially increase production effect
Rate, the iron filings for also having prevented drilling operating generation weigh the mass defect of forging surface generation wounded, while release former drilling operating
Equipment capacity, generate the hot finish forge punching die of Car Change-speed Gear Box Binding Gear of significant economic benefit.
Realizing the technical solution of the object of the invention is：A kind of hot finish forge punching die of Car Change-speed Gear Box Binding Gear, has upper
Die holder and corresponding with upper mold seat and be fixed on the die holder in lower template；The upper mold seat is fixed on the lower end of cope plate, and
The lower end of upper mold seat is equipped with upper mold large plate；It is equipped with die holder, lower die switch base plate and row in the lower template successively from outside to inside
Backing strap block；The lower die switch base plate is equipped with lower model fixing seat and the lower molding being fixed on by fastener on lower model fixing seat
Plate；The discharge cushion block is equipped with backing plate in lower die；Backing plate is equipped with lower die ejector beam in the lower die；The lower die ejector beam
On be socketed with punching lower die, lower die ejector beam is hollow cylinder, and punching recess therefrom falls discharge；The outer edge of the punching lower die
Coordinate with lower model fixing seat, lower die platen gap；The punch and lower die ejector beam endoporus small―gap suture coordinate；In the cope plate
What is set has nitrogen gas spring, by coupling upper knock-pin, upper ejection push plate, upper mold push rod and upper mold overcoat, is applied in punching
On mould, pressure-pad-force is provided in punch process, stripping force is provided at the end of punching；The upper mold push rod is worn successively from top to bottom
Cross the pilot hole of the pilot hole of backing plate and upper mold fixing sleeve in upper mold；The punch upper die is fitted in outside upper molded plate and upper mold
Between set, and it is assemblied in by fastening bolt on three upper mold push rods；Offer to assemble punch on the upper mold fixing sleeve
With the pilot hole of three upper mold push rods；The upper ejection push plate moves up and down the matching therewith for being arranged at and being opened up on upper mold switch base plate
In the endoporus of conjunction.
Lower knock-pin is equipped with described in above-mentioned technical proposal inside lower template, below discharge cushion block.
Coordinate between punch work band diameter described in above-mentioned technical proposal and lower die ejector beam endoporus work band for small―gap suture.
Safety clearance H is designed between punch upper die overcoat upper surface described in above-mentioned technical proposal and upper mold fixing sleeve lower face
≥2mm。
Fit clearance between the pilot hole of upper mold fixing sleeve and punch described in above-mentioned technical proposal and upper mold push rod outside diameter is
One side≤0.05mm.
Fit clearance one side≤0.2mm of above-mentioned technical proposal punch work band and lower die ejector beam endoporus work interband.
Above-mentioned technical proposal also has the walking beam clamping jaw or machine that can accurately clamp hot forging for being installed on mould side
Tool arm, hot forging are positioned in the punching lower die with positioning action.
After adopting the above technical scheme, the present invention has following positive effect：
（1）The present invention is realized after conjunction gear hot forging forming in the directly hot fine blanking hole of production line, removes gross weight, and make hole size
Reach detail drawing requirement, the design of the punching die is implemented so that eliminates the drilling operating in product original production process, letter
Production procedure is changed, has not only substantially increased production efficiency, the iron filings for also having prevented drilling operating generation weigh the production of forging surface wounded
Raw mass defect, while the equipment capacity of former drilling operating is released, generate significant economic benefit.
（2）The punching pressure-pad-force and stripping force of the present invention is mainly provided by nitrogen gas spring, this long pressure type, can be with required
The force mechanism that stripping force size voluntarily adjusts is different from mechanical instantaneous ejection, preferably can prevent forging from being taken up by punch,
It is highly suitable for the use of multistation hot forging automatic production line.
（3）The present invention punch upper die overcoat upper surface and upper mold fixing sleeve lower face between be designed with safety clearance H >=
2mm, to prevent lathe sliding block hitting power to be applied to by upper mold overcoat, upper molded plate and punch upper die assembly on forging, makes
Scrapped into forging gross distortion.
Brief description of the drawings
In order that the present invention can be more clearly and readily understood, it is right below according to specific embodiment and with reference to attached drawing
The present invention is described in further detail, wherein
Fig. 1 is the installation diagram of the present invention；
Fig. 2 is the structure diagram of the upper mold switch base plate of the present invention；
Attached figure label is：1- lower templates；2- die holders；3- discharge cushion blocks；4- lower die switch base plates；Model fixing seat under 5-；Under 6-
Moulded board；7- upper molded plates；8- upper mold overcoats；9- upper mold large plates；10- upper mold fixing sleeves；Backing plate in 11- upper molds；12- upper molds
Switch base plate；13- cope plates；14- nitrogen gas springs；The upper knock-pins of 15-；Push plate is ejected on 16-；17- upper mold push rods；18- upper mold seats；
19- punches；20- punch upper dies；21- punching lower dies；22- lower die ejector beams；Backing plate in 23- lower dies；Knock-pin under 24-.
Embodiment
（Embodiment 1）
See Fig. 1 and Fig. 2, the present invention is a kind of hot finish forge punching die of Car Change-speed Gear Box Binding Gear, have upper mold seat 18 and with it is upper
Die holder 18 is corresponding and the die holder 2 that is fixed in lower template 1；Upper mold seat 18 is fixed on the lower end of cope plate 13, and upper mold seat
18 lower end is equipped with upper mold large plate 9；It is equipped with die holder 2, lower die switch base plate 4 and discharge pad in lower template 1 successively from outside to inside
Block 3；Lower die switch base plate 4 is equipped with lower model fixing seat 5 and is fixed on the lower moulded board 6 on lower model fixing seat 5 by fastener；Row
Backing strap block 3 is equipped with backing plate 23 in lower die；Backing plate 23 is equipped with lower die ejector beam 22 in lower die；It is socketed with lower die ejector beam 22
Punching lower die 21, lower die ejector beam 22 are hollow cylinder, and punching recess therefrom falls discharge；The outer edge and lower die of punching lower die 21
Fixed seat 5,6 clearance fit of lower moulded board；Punch 19 and 22 endoporus small―gap suture of lower die ejector beam coordinate；Set in cope plate 13
There is nitrogen gas spring 14, by coupling upper knock-pin 15, upper ejection push plate 16, upper mold push rod 17 and upper mold overcoat 8, be applied to punching
In upper mold 20, pressure-pad-force is provided in punch process, stripping force is provided at the end of punching；Upper mold push rod 17 is from top to bottom successively
The pilot hole of the pilot hole of backing plate 11 and upper mold fixing sleeve 10 in through upper mold；Punch upper die 20 is fitted in 7 He of upper molded plate
Between upper mold overcoat 8, and it is assemblied in by fastening bolt on three upper mold push rods 17；Offer to fill on upper mold fixing sleeve 10
Pilot hole with punch 19 and three upper mold push rods 17；Upper ejection push plate 16, which moves up and down to be arranged on upper mold switch base plate 12, to be opened up
Endoporus with matching in.
Lower knock-pin 24 is equipped with inside lower template 1, below discharge cushion block 3.
Coordinate between punch work band diameter and lower die ejector beam endoporus work band for small―gap suture, realize that hot fine blanking hole will
Ask.
Safety clearance H >=2mm is designed between punch upper die overcoat upper surface and upper mold fixing sleeve lower face.
Fit clearance between the pilot hole and punch and upper mold push rod outside diameter of upper mold fixing sleeve is one side≤0.05mm.
Fit clearance one side≤0.2mm of punch work band and lower die ejector beam endoporus work interband.
Also there is the walking beam clamping jaw that can accurately clamp hot forging for being installed on mould side or mechanical arm, hot forging to put
It is placed in the punching lower die 21 with positioning action.
The present invention operation principle be：Specifically forging technology is：Jumping-up → preform → shaping → punching → trimming, production
Efficiency reach 8-10 parts/point.Application of the punching die in automation equipment, not only substantially increases the production efficiency of product,
And production process is simplified, achieve good economic benefit.
Product is after hot forging forming, using craft or walking beam clamping jaw（Or mechanical arm etc.）Hot forging is positioned over fixed
In the punching lower die of position effect, lathe sliding block declines, and punch upper die lower face first contacts forging upper surface, therewith nitrogen gas spring by
Power, produces enough reaction forces, and by the upper ejection of connection, upper ejection push plate, upper mold push rod, upper mold overcoat, punching
Mould is applied on forging, to prevent that forging is beated in punch process, while also can control punching forgings deformation.Then, rush
Head contact forging gross weight, continues pushing and realizes punching, since punch works between band diameter and lower die ejector beam endoporus work band
Small―gap suture coordinate, it is achieved that hot fine, punch size disclosure satisfy that detail drawing requirement, it is not necessary to machine again drilling or
Reaming, bore hole.
At the beginning of punching terminates the backhaul of lathe sliding block, the pressure-pad-force being applied to from nitrogen gas spring on forging is changed into stripping force, and
Rise certain altitude in sliding block, after punch departs from forging, nitrogen gas spring power just disappears, and the power of this long pressure type is especially advantageous for automatically
Change production line application, to prevent forging from being taken up by punch, cause clamping jaw clamping failure.For the technical program, it should be pointed out that
It is：If not automatic punching, lower ejection can should not；If automated production, it is suitably adjusted depending on walking beam jaw position
Ejection height, so that clamping jaw being capable of accurate clamping forge piece.
Particular embodiments described above, has carried out the purpose of the present invention, technical solution and beneficial effect further in detail
Describe in detail it is bright, it should be understood that the foregoing is merely the present invention specific embodiment, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done, should be included in the guarantor of the present invention
Within the scope of shield.
Claims (7)
1. a kind of hot finish forge punching die of Car Change-speed Gear Box Binding Gear, has upper mold seat（18）With with upper mold seat（18）It is corresponding and
It is fixed on lower template（1）On die holder（2）；The upper mold seat（18）It is fixed on cope plate（13）Lower end, and upper mold seat
（18）Lower end be equipped with upper mold large plate（9）；It is characterized in that：The lower template（1）On be equipped with die holder successively from outside to inside
（2）, lower die switch base plate（4）With discharge cushion block（3）；The lower die switch base plate（4）It is equipped with lower model fixing seat（5）Fastened with passing through
Part is fixed on lower model fixing seat（5）On lower moulded board（6）；The discharge cushion block（3）It is equipped with backing plate in lower die（23）；It is described
Backing plate in lower die（23）It is equipped with lower die ejector beam（22）；The lower die ejector beam（22）On be socketed with punching lower die（21）, under
Mould ejector beam（22）For hollow cylinder, punching recess therefrom falls discharge；The punching lower die（21）Outer edge fixed with lower die
Seat（5）, lower moulded board（6）Clearance fit；The punch（19）With lower die ejector beam（22）Endoporus small―gap suture coordinates；The upper mold
Plate（13）Middle setting has nitrogen gas spring（14）, by coupling upper knock-pin（15）, upper ejection push plate（16）, upper mold push rod（17）
With upper mold overcoat（8）, it is applied to punch upper die（20）On, pressure-pad-force is provided in punch process, provides and unloads at the end of punching
Expect power；The upper mold push rod（17）Backing plate in upper mold is sequentially passed through from top to bottom（11）Pilot hole and upper mold fixing sleeve（10）'s
Pilot hole；The punch upper die（20）It is fitted in upper molded plate（7）With upper mold overcoat（8）Between, and filled by fastening bolt
Fit over three upper mold push rods（17）On；The upper mold fixing sleeve（10）On offer to assemble punch（19）Pushed away with three upper molds
Bar（17）Pilot hole；The upper ejection push plate（16）Move up and down and be arranged at upper mold switch base plate（12）On the matching therewith that opens up
In the endoporus of conjunction.
2. the hot finish forge punching die of Car Change-speed Gear Box Binding Gear according to claim 1, it is characterised in that：The lower template
（1）Internal, discharge cushion block（3）Lower section is equipped with lower knock-pin（24）.
3. the hot finish forge punching die of Car Change-speed Gear Box Binding Gear according to claim 1, it is characterised in that：The punch work
Make for small―gap suture to coordinate between band diameter and lower die ejector beam endoporus work band.
4. the hot finish forge punching die of Car Change-speed Gear Box Binding Gear according to claim 1, it is characterised in that：In the punching
Mould overcoat（8）Upper surface and upper mold fixing sleeve（10）Safety clearance H >=2mm is designed between lower face.
5. the hot finish forge punching die of Car Change-speed Gear Box Binding Gear according to claim 1, it is characterised in that：The upper mold is consolidated
Surely the fit clearance between the pilot hole and punch and upper mold push rod outside diameter that cover is one side≤0.05mm.
6. the hot finish forge punching die of Car Change-speed Gear Box Binding Gear according to claim 4, it is characterised in that：Punch work band
With fit clearance one side≤0.2mm of lower die ejector beam endoporus work interband.
7. the hot finish forge punching die of Car Change-speed Gear Box Binding Gear according to any one of claims 1 to 6, it is characterised in that：Also
With the walking beam clamping jaw or mechanical arm that can accurately clamp hot forging for being installed on mould side, hot forging is positioned over fixed
The punching lower die of position effect（21）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388874.9A CN107931413A (en) | 2017-12-21 | 2017-12-21 | The hot finish forge punching die of Car Change-speed Gear Box Binding Gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388874.9A CN107931413A (en) | 2017-12-21 | 2017-12-21 | The hot finish forge punching die of Car Change-speed Gear Box Binding Gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107931413A true CN107931413A (en) | 2018-04-20 |
Family
ID=61942081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711388874.9A Pending CN107931413A (en) | 2017-12-21 | 2017-12-21 | The hot finish forge punching die of Car Change-speed Gear Box Binding Gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107931413A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108687289A (en) * | 2018-05-22 | 2018-10-23 | 江苏太平洋齿轮传动有限公司 | Configure the conjunction gear cold-finishing mould of spline mandril |
| CN108817871A (en) * | 2018-07-11 | 2018-11-16 | 湖北汽车工业学院 | A kind of method of manufacturing technology of automobile VCR engine internal tooth tooth plate |
| CN112775284A (en) * | 2020-12-18 | 2021-05-11 | 宝鸡法士特齿轮有限责任公司 | Punching die and punching method suitable for automatic forging equipment |
| WO2024087718A1 (en) * | 2022-10-27 | 2024-05-02 | 天津太平洋传动科技有限公司 | Punching, trimming, and blanking compound die and product machining method thereof |
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| CN207615475U (en) * | 2017-12-21 | 2018-07-17 | 江苏太平洋精锻科技股份有限公司 | The hot finish forge punching die of Car Change-speed Gear Box Binding Gear |
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| US20010039865A1 (en) * | 1999-06-09 | 2001-11-15 | Edward D. Bennett | Stamping die for producing smooth-edged metal parts having complex perimeter shapes |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108687289A (en) * | 2018-05-22 | 2018-10-23 | 江苏太平洋齿轮传动有限公司 | Configure the conjunction gear cold-finishing mould of spline mandril |
| CN108817871A (en) * | 2018-07-11 | 2018-11-16 | 湖北汽车工业学院 | A kind of method of manufacturing technology of automobile VCR engine internal tooth tooth plate |
| CN108817871B (en) * | 2018-07-11 | 2020-04-17 | 湖北汽车工业学院 | Manufacturing process method of internal toothed plate of automobile VCR engine |
| CN112775284A (en) * | 2020-12-18 | 2021-05-11 | 宝鸡法士特齿轮有限责任公司 | Punching die and punching method suitable for automatic forging equipment |
| WO2024087718A1 (en) * | 2022-10-27 | 2024-05-02 | 天津太平洋传动科技有限公司 | Punching, trimming, and blanking compound die and product machining method thereof |
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Application publication date: 20180420 |
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