CN109201855A - A kind of close hole machined mold of air duct cover board and processing method - Google Patents
A kind of close hole machined mold of air duct cover board and processing method Download PDFInfo
- Publication number
- CN109201855A CN109201855A CN201710528921.9A CN201710528921A CN109201855A CN 109201855 A CN109201855 A CN 109201855A CN 201710528921 A CN201710528921 A CN 201710528921A CN 109201855 A CN109201855 A CN 109201855A
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- plate
- mold
- die holder
- formed punch
- lower template
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- 238000003672 processing method Methods 0.000 title abstract description 5
- 239000002699 waste material Substances 0.000 claims abstract description 39
- 239000000428 dust Substances 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000011324 bead Substances 0.000 claims description 10
- 230000014759 maintenance of location Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000005286 illumination Methods 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000004080 punching Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009191 jumping Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000013569 fruit product Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000010409 thin film Substances 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
-
- 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
- B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
-
- 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
- B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
- B21D45/006—Stripping-off devices
-
- 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
- B21D45/06—Stripping-off devices
- B21D45/08—Stripping-off devices interrelated with motion of tool
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
A kind of close hole machined mold of air duct cover board of the present invention and processing method, including upper die and lower die, the lower die include the lower template for placing processed product, and the upper mold includes upper die holder, the formed punch that is arranged in below the upper die holder；The lower die holder bottom is provided with waste material interconnecting device, the lower template is provided with waste outlet, the waste material entrance of the waste material interconnecting device is connected to the waste outlet of lower template, and the outlet of the waste material interconnecting device is connect with dust catcher.The metal-sheet parts with close hole of different sizes, no surface coating limitation can be processed in the present invention.When there is appearance requirement in the close hole of sheet metal, the close hole bur of this mold processing is small, and no black surround, one integral piece flatness is good, and pitch-row and bore dia are small, the available guarantee of the visual experience after feel and illumination.In addition realize have stock utilization high using this Dies ' Blanking, high production efficiency, it is environment friendly and pollution-free the advantages that.
Description
Technical field
The present invention relates to a kind of mold, in particular to the close hole machined mold of a kind of air duct cover board and processing method.
Background technique
It is mostly in the prior art in a manner of chemical attack, by making chemical mould for the implementation for processing close hole
Type, chemical liquid reflect that dissolving metal is in acidic liquid with thin-sheet metal, so that aperture one by one is formed, but this
Method production efficiency bottom is not able to satisfy batch production, and the chemical waste generated also pollutes the environment, as fruit product has appearance
It is required that when, sheet metal will often cover thin film, just cannot achieve with chemical attack mode again.
There is a method in which being exactly to be processed using laser, sheet metal is put into laser station, laser head transmitting is high
The light beam of energy, in thin plate, moment generates high temperature in point of irradiation, liquefies in metal small sircle hole beam orthogonal, after cooling, circle
It is separated around lamellule and hole in hole, to realize aperture, but the method production has a defect, has thawing cold around aperture
But the little particle after touches up rough with hand, and appearance appears to have black surround, influences appearance.
Summary of the invention
The technical issues of main object of the present invention is to solve in the prior art provides a kind of simple possible, production effect
The close hole machined mold of the high air duct cover board of rate.
It is a further object to provide a kind of close hole forming methods of air duct cover board.
To achieve the above object, the technical scheme is that
A kind of close hole machined mold of air duct cover board, including upper die and lower die, it is characterised in that: the lower die includes for putting
Set the lower template of processed product, the upper mold includes upper die holder, the formed punch that is arranged in below the upper die holder；
The lower die holder bottom is provided with waste material interconnecting device, the lower template is provided with waste outlet, the waste material
The waste material entrance of interconnecting device is connected to the waste outlet of lower template, and the outlet of the waste material interconnecting device is connect with dust catcher.
Further, the upper mold further includes the upper de- plate being arranged in below the upper die holder, in the upper de- plate and upper mold
It is provided with spring between seat, is provided with the hole passed through for formed punch, one end of the formed punch and upper die holder on the upper de- plate
It offsets, the other end is arranged in the hole of the upper de- plate, and the sword end of the formed punch is when the downward press-working spring of upper mold is squeezed
It is pierced by the hole of de- plate.
Further, the upper mold further includes upper padding plate and upper clamp plate, the upper padding plate setting upper die holder and upper clamp plate it
Between, the upper die holder, upper padding plate, upper clamp plate are fixedly connected, the corresponding position of the upper clamp plate is provided with the hole that formed punch passes through,
The formed punch offsets close to one end of upper die holder with upper padding plate.
Further, the spring is multiple brute springs and multiple nitrogen gas springs, multiple brute springs and nitrogen bullet
Spring is arranged between upper clamp plate and upper de- plate.
Further, it is provided with upper de- plate mold insert on the upper de- plate, is provided with formed punch on the upper de- plate mold insert
The stepped hole that sword end passes through, the sword end of the formed punch and bar portion surface blending.
Further, lower template cavity plate is provided in the lower template, the lower template cavity plate is embedded in the lower template, institute
It is corresponding with lower template cavity plate position to state de- plate mold insert.
Further, one end of upper die holder is provided with retention bead in the formed punch, the retention bead, which has, keeps away position
Face is provided with the groove matched with the retention bead on the upper clamp plate.
Further, the lower die further includes lower bolster, lower die holder, multiple lower die legs, lower pallet, below the lower template
It is disposed with the lower bolster, lower die holder, lower pallet, multiple lower die legs are arranged between lower die holder and lower pallet.
Another technical solution of the invention is:
A kind of close hole forming method of air duct cover board using above-mentioned close hole machined mold, includes the following steps:
Step 1: the upper mold downlink, the upper de- plate contacts and compresses the processed product in lower template；
Step 2: the upper mold continues traveling downwardly, spring is squeezed, and the sword end of formed punch is pierced by the hole of de- plate to be processed
Product is punched；
Step 3: the upper mold uplink, formed punch therewith retract in the upper de- plate by uplink, the de- plate described later and lower die
Plate separation.
Further, increase a step before the step 1, which is that processed product carries out the pre-heat treatment.
To sum up content, a kind of close hole machined mold of air duct cover board of the present invention and processing method, have the advantages that
1, the metal-sheet parts with close hole of different sizes, no surface coating limitation can be processed in the present invention.Work as metal foil
When there is appearance requirement in the close hole of plate, the close hole bur of this mold processing is small, and no black surround, one integral piece flatness is good, pitch-row and bore dia
It is small, the available guarantee of visual experience after feel and illumination.In addition realize that there is stock utilization using this Dies ' Blanking
Height, high production efficiency, it is environment friendly and pollution-free the advantages that.
2, it is contacted by upper de- plate and is punched after compressing metal-sheet parts again, play the role of guaranteeing product plane degree.
And when formed punch exits, upper de- plate still contacts and compresses metal-sheet parts, and it is indeformable to play the role of circular hole, final products
On hole all realize.
3, by setting waste material interconnecting device, in mold continuous stamping, the waste material rushed out is fallen in waste material interconnecting device,
By external dust collector device, waste material is sucked out, avoids rebound from jumping out die surface, product is caused to weigh wounded.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of upper mold of the present invention；
Fig. 2 is the structural schematic diagram of lower die of the present invention；
Fig. 3 is the structural schematic diagram of upper clamp plate of the present invention；
Fig. 4 is the structural schematic diagram that plate is taken off in the present invention；
Fig. 5 is the bottom view of Fig. 4；
Fig. 6 is the structural schematic diagram of formed punch of the present invention；
Fig. 7 is the top view of Fig. 6；
Fig. 8 is the structural schematic diagram of waste material interconnecting device of the present invention；
Fig. 9 is the left view of Fig. 8；
Figure 10 is processed product schematic diagram of the present invention.
As shown in Figures 1 to 10, upper die holder 1, upper padding plate 2, upper clamp plate 3, fixation hole 3-1, upper de- plate 4, de- plate mold insert 4-
1, lower template 5, lower template cavity plate 5-1, lower bolster 6, lower die holder 7, multiple lower die legs 8, lower pallet 9, brute spring 10, nitrogen bullet
Spring 11, formed punch 12, retention bead 12-1, waste material interconnecting device 13, reject chute 13-1, dust catcher connector 13-2, liftout component 14,
Buoyant component 15, contour sleeve 16, high rigidity guide post 17.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figures 1 to 9, the close hole machined mold of a kind of air duct cover board of the present invention mainly includes upper mold under
Mould, upper mold mainly include upper die holder 1, upper padding plate 2, upper clamp plate 3, upper de- plate 4, formed punch 12, lower die mainly include lower template 5, under
Backing plate 6, lower die holder 7, multiple lower die legs 8, lower pallet 9.
Upper mold is from top to bottom followed successively by upper die holder 1, upper padding plate 2, upper clamp plate 3, upper de- plate 4, wherein upper die holder 1, upper padding plate
2, the bolt of upper clamp plate 3 is fixed, and to limit horizontal direction freedom degree, is provided with pin wherein, upper de- plate 4 can be up and down.
Lower die is from top to bottom followed successively by lower template 5, lower bolster 6, lower die holder 7, multiple lower die legs 8, lower pallet 9, and lower die is whole
Body be it is inactive, lower template 5, lower bolster 6, lower die holder 7 bolt fix, lower pallet 9 be arranged on bottom surface, multiple lower die legs 8
Both ends are fixed with die holder 7 and lower pallet 9 respectively.
It is provided with spring between upper de- plate 4 and upper die holder 1, in the present embodiment, spring is multiple 10 Hes of brute spring
Multiple nitrogen gas springs 11, multiple brute springs 10 and nitrogen gas spring 11 are arranged between upper clamp plate 3 and upper de- plate 4, and upper de- plate 4 exists
When the downward punching press of upper mold touches lower template 5, under the action of brute spring 10 and nitrogen gas spring 11, upper die holder 1, upper padding plate 2,
Upper clamp plate 3 still can downward punching press so that formed punch 12 expose on take off plate 4 carry out close hole punching.
In the present embodiment, formed punch 12 needs to be arranged multiple according to the close hole machined of product, is provided with formed punch on upper clamp plate 3
12 fixation hole 3-1, is provided with the hole passed through for formed punch 12 on upper de- plate 4, and formed punch 12 is fixed on fixation hole 3-1, one end with
Upper padding plate 2 offsets, and the other end is arranged in the hole of upper de- plate 4, and the sword end of formed punch 12 is squeezed in the downward press-working spring of upper mold
When be pierced by the hole of de- plate 4 and carry out close hole punching.Upper padding plate 2 uses high-hardness, and formed punch 12 offsets with upper padding plate 2 to be conducive to
Reduce the damage to upper die holder 1.
For lower template 5 for placing processed product, processed product is metal-sheet parts, the downward punching press of upper mold, upper de- plate 4
It contacts and compresses the metal-sheet parts in lower template 5, upper mold continues traveling downwardly, and spring is squeezed, and the sword end of formed punch 12 is pierced by
The hole of de- plate 4 is punched towards processed products, and upper mold uplink, formed punch 12 therewith retract in de- plate 4 by uplink, de- plate upper later
4 separate with lower template, and punching is completed.Pass through the upper de- contact of plate 4 and be punched again after compressing metal-sheet parts, plays guarantee product
The effect of flatness.And when formed punch 12 exits, upper de- plate 4 still contacts and compresses metal-sheet parts, and it is constant to play circular hole
The effect of shape, the hole on final products are all realized.
To improve mold versatility, it is provided with upper de- plate mold insert 4-1 on upper de- plate 4, is provided with lower die in lower template 5
Plate cavity plate 5-1, lower template cavity plate 5-1 pass through subzero treatment, the intensity maximum of cutting edge of die using advanced mold materials SKH-9
Increase and not easy to crack.
Lower template cavity plate 5-1 is embedded in lower template 5, and upper de- plate mold insert 4-1 is corresponding with the lower template position cavity plate 5-1.Upper
It is provided with the stepped hole that the sword end of formed punch 12 passes through on de- plate mold insert 4-1, the sword end when being pierced by upper de- plate 4 of formed punch 12 is pierced by, bar
Portion stays in de- plate mold insert 4-1, avoids the damage to formed punch 12, and can limit to formed punch 12 by stepped hole, prevents
Only formed punch 12 blocks.
To prevent formed punch 12 to be broken, the gauge diameter of formed punch 12 is greater than sword end, the sword end of formed punch 12 and bar portion surface blending.
One end of upper die holder 1 is provided with retention bead 12-1 in formed punch 12, due to processing close hole retention bead 12-1
Can there are problems that influencing each other, therefore retention bead 12-1 prevents formed punch 12 that can not be arranged due to overstocked with plane is kept away,
The groove matched with retention bead 12-1 is provided on upper clamp plate 3.
7 bottom of lower die holder is provided with waste material interconnecting device 13, lower template 5 is provided with waste outlet, in the present embodiment,
The waste outlet of lower template 5 is the lower template cavity plate 5-1 and connection lower template cavity plate 5- being arranged on lower bolster 6, lower die holder 7
The waste material entrance of 1 through-hole, waste material interconnecting device 13 is connected to lower template waste outlet so that punching after waste material fall directly into it is useless
Expect interconnecting device 13.The outlet of waste material interconnecting device 13 is connect with dust catcher.
It is opening at the top of waste material interconnecting device 13, the through-hole that lower template cavity plate 5-1 is connected to lower die holder 7 is connected directly, to keep away
Exempt from there is waste material not to be sucked out by dust catcher, waste material interconnecting device 13 is provided with reject chute 13-1, is provided in one end of reject chute 13-1
Dust catcher connector 13-2.By the way that waste material interconnecting device 13 is arranged, in mold continuous stamping, the waste material rushed out falls on waste material
In interconnecting device 13, by external dust collector device, waste material is sucked out, avoids rebound from jumping out die surface, causes product pressure
Wound.
To prevent metal-sheet parts to be attached to upper de- plate 4 or lower template 5, it is provided with liftout component 14 on upper de- plate 4, under
Buoyant component 15 is provided in template 5.
To prevent upper de- plate 4 from falling, contour sleeve 16, contour set are provided on upper die holder 1, upper padding plate 2, upper clamp plate 3
Cylinder 16 and upper de- plate 4 are fixed.
For the punching precision for improving formed punch 12, high rigidity guide post 17 is provided on upper die and lower die.
In the present embodiment, the metal-sheet parts of processed product are cover plate for refrigerator air duct, if Figure 10 is regarded, air duct cover board
With three rows, the two close holes of column, mold is provided with corresponding six de- plate mold insert 4-1 and six lower template cavity plate 5-1.
A kind of close hole forming method using the close hole machined mold of above-mentioned air duct cover board, includes the following steps:
Step 1: carrying out the pre-heat treatment towards processed products, the abrasion of formed punch 12 are effectively reduced by the pre-heat treatment.
Step 2: upper mold is fixed on punching machine top shoe table top, as the crankshaft of punching machine rotates, upper die component downlink is upper de-
Plate 4 contacts and compresses the processed product in lower template 5.
Step 3: upper mold continues traveling downwardly, spring is squeezed, and the sword end of formed punch 12 is pierced by the hole of de- plate 4 to be processed
Product is punched.
Step 4: upper mold uplink, formed punch 12 therewith retract in de- plate 4 by uplink, and de- plate 4 upper later is separated with lower template 5,
Punching is completed.
Step 5 detects metal-sheet parts, is repaired if there are substandard products.
The metal-sheet parts with close hole of different sizes, no surface coating limitation can be processed in the present invention.Work as sheet metal
Close hole when having appearance requirement, the close hole bur of this mold processing is small, and no black surround, one integral piece flatness is good, and pitch-row and bore dia are small,
The available guarantee of visual experience after feel and illumination.In addition realize that there is stock utilization height using this Dies ' Blanking,
High production efficiency, it is environment friendly and pollution-free the advantages that.
As described above, the plan content in conjunction with given by attached drawing, can derive similar technical solution.But it is all not take off
Content from technical solution of the present invention, according to the technical essence of the invention it is to the above embodiments it is any it is simple modification, etc.
With variation and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of close hole machined mold of air duct cover board, including upper die and lower die, it is characterised in that: the lower die includes for placing
The lower template of processed product, the upper mold includes upper die holder, the formed punch that is arranged in below the upper die holder；
The lower die holder bottom is provided with waste material interconnecting device, the lower template is provided with waste outlet, the waste material switching
The waste material entrance of box is connected to the waste outlet of lower template, and the outlet of the waste material interconnecting device is connect with dust catcher.
2. the close hole machined mold of a kind of air duct cover board according to claim 1, it is characterised in that: the upper mold further includes setting
The upper de- plate below the upper die holder is set, is provided with spring between the upper de- plate and upper die holder, on the upper de- plate
It is provided with the hole passed through for formed punch, one end and the upper die holder of the formed punch offset, and the hole of the upper de- plate is arranged in the other end
Interior, the sword end of the formed punch is pierced by the hole of upper de- plate when the downward press-working spring of upper mold is squeezed.
3. the close hole machined mold of a kind of air duct cover board according to claim 1, it is characterised in that: on the upper mold further includes
Backing plate and upper clamp plate, the upper padding plate are arranged between upper die holder and upper clamp plate, and the upper die holder, upper padding plate, upper clamp plate are fixed
Connection is provided with the hole that formed punch passes through, the one end and upper pad of the formed punch close to upper die holder in the corresponding position of the upper clamp plate
Plate offsets.
4. the close hole machined mold of a kind of air duct cover board according to claim 3, it is characterised in that: the spring is multiple strong
Power spring and multiple nitrogen gas springs, multiple brute springs and nitrogen gas spring are arranged between upper clamp plate and upper de- plate.
5. the close hole machined mold of a kind of air duct cover board according to claim 2 or 3, it is characterised in that: in the upper de- plate
On be provided with de- plate mold insert, the stepped hole that the sword end of formed punch passes through is provided on the upper de- plate mold insert, the formed punch
Sword end and bar portion surface blending.
6. the close hole machined mold of a kind of air duct cover board according to claim 5, it is characterised in that: set in the lower template
It is equipped with lower template cavity plate, the lower template cavity plate is embedded in the lower template, the upper de- plate mold insert and lower template cavity plate position phase
It is corresponding.
7. the close hole machined mold of a kind of air duct cover board according to claim 3, it is characterised in that: in the formed punch close to upper
One end of die holder is provided with retention bead, and the retention bead, which has, keeps away plane, is provided on the upper clamp plate and the limit
The groove that position protrusion matches.
8. the close hole machined mold of a kind of air duct cover board according to claim 1, it is characterised in that: under the lower die further includes
Backing plate, lower die holder, multiple lower die legs, lower pallet, be disposed with below the lower template lower bolster, lower die holder, under
Supporting plate, multiple lower die legs are arranged between lower die holder and lower pallet.
9. a kind of close hole forming method of air duct cover board of application close hole machined mold as described in any one of claim 1 to 8, special
Sign is, includes the following steps:
Step 1: the upper mold downlink, the upper de- plate contacts and compresses the processed product in lower template；
Step 2: the upper mold continues traveling downwardly, spring is squeezed, and the sword end of formed punch is pierced by the hole of de- plate towards processed products
It is punched；
Step 3: the upper mold uplink, formed punch therewith retract in the upper de- plate by uplink, the de- plate described later and lower template point
From.
10. the close hole forming method of a kind of air duct cover board according to claim 9, it is characterised in that: the step 1 it
One step of preceding increase, the step are that processed product carries out the pre-heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528921.9A CN109201855A (en) | 2017-07-01 | 2017-07-01 | A kind of close hole machined mold of air duct cover board and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528921.9A CN109201855A (en) | 2017-07-01 | 2017-07-01 | A kind of close hole machined mold of air duct cover board and processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109201855A true CN109201855A (en) | 2019-01-15 |
Family
ID=64993013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710528921.9A Pending CN109201855A (en) | 2017-07-01 | 2017-07-01 | A kind of close hole machined mold of air duct cover board and processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109201855A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57154331A (en) * | 1981-03-20 | 1982-09-24 | Tokico Ltd | Multiple press method and device |
| JPS63199036A (en) * | 1987-02-12 | 1988-08-17 | Alps Electric Co Ltd | Forming die |
| CN201313133Y (en) * | 2008-10-31 | 2009-09-23 | 杜广营 | A hydraulic porous punch |
| CN202270819U (en) * | 2011-08-26 | 2012-06-13 | 厦门市尚明达机电工业有限公司 | Blanking die for small hole of stainless-steel spring piece |
| CN102825141A (en) * | 2012-09-29 | 2012-12-19 | 苏州鑫捷顺五金机电有限公司 | Waste recovery system |
| CN104325006A (en) * | 2014-09-02 | 2015-02-04 | 中国南方航空工业(集团)有限公司 | Hole group processing device |
| CN105057452A (en) * | 2015-08-04 | 2015-11-18 | 苏州吴江春宇电子股份有限公司 | Net shape punching and cutting mold |
-
2017
- 2017-07-01 CN CN201710528921.9A patent/CN109201855A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57154331A (en) * | 1981-03-20 | 1982-09-24 | Tokico Ltd | Multiple press method and device |
| JPS63199036A (en) * | 1987-02-12 | 1988-08-17 | Alps Electric Co Ltd | Forming die |
| CN201313133Y (en) * | 2008-10-31 | 2009-09-23 | 杜广营 | A hydraulic porous punch |
| CN202270819U (en) * | 2011-08-26 | 2012-06-13 | 厦门市尚明达机电工业有限公司 | Blanking die for small hole of stainless-steel spring piece |
| CN102825141A (en) * | 2012-09-29 | 2012-12-19 | 苏州鑫捷顺五金机电有限公司 | Waste recovery system |
| CN104325006A (en) * | 2014-09-02 | 2015-02-04 | 中国南方航空工业(集团)有限公司 | Hole group processing device |
| CN105057452A (en) * | 2015-08-04 | 2015-11-18 | 苏州吴江春宇电子股份有限公司 | Net shape punching and cutting mold |
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Application publication date: 20190115 |
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| RJ01 | Rejection of invention patent application after publication |