CN102825132B - Punching technology of handle of cabinet freezer and punching die thereof - Google Patents
Punching technology of handle of cabinet freezer and punching die thereof Download PDFInfo
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- CN102825132B CN102825132B CN201210323018.6A CN201210323018A CN102825132B CN 102825132 B CN102825132 B CN 102825132B CN 201210323018 A CN201210323018 A CN 201210323018A CN 102825132 B CN102825132 B CN 102825132B
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Abstract
The invention relates to a punching technology of a handle of a cabinet freezer and a punching die of the punching technology of the handle of the cabinet freezer. The punching technology is a continuous punching technology, comprising the processes of blanking, stretching, side forming, wrapping and separating; and a continuous punching die is adopted in the punching technology. The punching die is the continuous punching die which comprises an upper die and a lower die which are integrally formed; the upper die comprises an upper die for blanking forming, an upper die for stretching forming, an upper die for lateral forming, an upper die for wrapping forming and an upper die for separating forming, which are arranged in sequence; and the lower die comprises a lower die for blanking forming, a lower die for stretching form, a lower die for lateral forming, a lower die for wrapping forming and a lower die for separating forming, which are arranged in sequence. The punching technology disclosed by the invention is continuously carried out, has simple steps, is easy to implement, has a good technical effect, improves the punching efficiency of products, and ensures the stability of the quality of the products; and the punching die disclosed by the invention is compact and symmetric in structure, low in cost of manufacture and high in efficiency, and has stable performance in punching.
Description
Technical field
The invention belongs to stamping technology field, relate in particular to a kind of reach in freezer handle Sheet Metal Forming Technology and diel thereof.
Background technology
In reach in freezer handle production process, conventionally can relate to Sheet Metal Forming Technology and diel, existing reach in freezer handle requires outward appearance light, attractive in appearance, inner side commissure requires gap even, highly unanimously can not there is drop, could meet and automatically adopt automatic welding and the requirement of outward appearance feel, existing reach in freezer handle is all to adopt multiple single stations to produce conventionally, in order to enhance productivity, save production cost, customer requirement preferably can be used multistation quantity-produced pattern, but under this production model, reach in freezer handle Sheet Metal Forming Technology and diel meeting thereof run into following problem:
1, because the datum level of product requires the depth of parallelism 0.25, tolerance is too small, and refine limit after necessary consideration moulding, certainly will operation bother Efficiency Decreasing like this;
2, due to product be the typical products of a similar pipe, in the time using multistation to produce continuously, each structure space of diel is subject to certain limitation, and inner side joint close moulding is difficulty relatively;
3, due to the body shape changes trend at product two ends, often there is wrinkling appearance in outside, product end in existing drawing process, and product appearance quality can be affected;
4,, in committed step side molding procedure, because mould outside adopts conventional slide block structure, die size limited space, certainly will affect product stripping efficiency and quality so simultaneously;
5, in the moulding of committed step parcel, change of shape is violent, and inner side, product end can produce cracking phenomena conventionally; If moulding straight line position is used hollow forming inside product end, can make formed product not in place.
Above-mentioned known, be necessary prior art further perfect.
Summary of the invention
The present invention is that existing reach in freezer handle Sheet Metal Forming Technology operation is loaded down with trivial details, process efficiency is low in order to solve, mould structure complexity, cost are high, punching press weak effect, can not meet Product Process and quality high request problem and to propose a kind of technique process simple, effective, process efficiency is high, die cost is low, punching press is effective, can meet refrigerator handle Sheet Metal Forming Technology and the diel thereof of Product Process and quality requirement.
The present invention is achieved by the following technical solutions:
Above-mentioned a kind of reach in freezer handle Sheet Metal Forming Technology, is continuous stamping process, mainly comprises five operations of blanking-stretching-side moulding-parcel-separation, adopts continuous stamping die, adds empty step in the place of described die space deficiency.
Described reach in freezer handle Sheet Metal Forming Technology, wherein: in described blanking procedure, the outline indwelling surplus at the product two ends after punching molding.Described side moulding adopts the mode of de-material by force to carry out moulding.Described side molding procedure increases technique convex closure in the inner side at product both ends.Described parcel operation adopts solid moulding.
Implementing the diel of above-mentioned reach in freezer handle Sheet Metal Forming Technology, is continuous stamping die, comprises integrated upper die and lower die respectively; Described patrix comprises blanking shaping upper, drawing and forming patrix, side shaping upper, the parcel shaping upper that order arranges successively and separates shaping upper; Described counterdie comprises blanking moulding counterdie, drawing and forming counterdie, side moulding counterdie, the parcel moulding counterdie that order arranges successively and separates moulding counterdie.
The diel of described reach in freezer handle, wherein: described blanking shaping upper comprises edge-cutting and hole-punching punch; Described blanking moulding counterdie mates with described blanking shaping upper, comprises the edge-cutting and hole-punching die matching with described edge-cutting and hole-punching punch.
The diel of described reach in freezer handle, wherein: described drawing and forming patrix comprises stretching die; Described drawing and forming counterdie is positioned at described blanking moulding counterdie one side, comprise the stretching convex die of mating with described stretching die, stretch blank holder and be located at described stretching convex die and stretching blank holder between nitrogen spring.
The diel of described reach in freezer handle, wherein: described side shaping upper is positioned at described drawing and forming patrix one side, what comprise holding pad and be located at described holding pad both sides tiltedly carves drive block; Described side moulding counterdie is positioned at described drawing and forming counterdie one side, comprises side shaping mould backing plate, tiltedly carves sliding shoe, back bracket, defelctor apron, slide block retracting spring, compacted under male model and take off material thimble.
The diel of described reach in freezer handle, wherein: describedly tiltedly carve sliding shoe and back bracket is all located on described side shaping mould backing plate, described back bracket is positioned at described both sides of tiltedly carving sliding shoe bottom; Described defelctor apron is located at described both sides of tiltedly carving sliding shoe top; Described slide block retracting spring, compacted under male model and de-material thimble coupling are arranged at the described sliding shoe inner side of tiltedly carving.
The diel of described reach in freezer handle, wherein: described parcel shaping upper is positioned at described side shaping upper one side, comprises molding concave die; Described parcel moulding counterdie is positioned at described side moulding counterdie one side, comprises the compacted under piece mating with described upper molding concave die.
The diel of described reach in freezer handle, wherein: described separation shaping upper is positioned at described parcel shaping upper one side, comprises separation punch; Described separation moulding counterdie is positioned at described parcel moulding counterdie one side, comprises and the described separation die that separates punch coupling.
The diel of described reach in freezer handle, wherein: described counterdie also comprises the guiding mechanism on one group of relative side being located at described counterdie length direction, and described guiding mechanism comprises guide post and guide pad; The two ends of described blanking moulding counterdie, drawing and forming counterdie, side moulding counterdie and parcel moulding counterdie be equipped with one group described in guide post and guide pad.
Beneficial effect:
Reach in freezer handle Sheet Metal Forming Technology of the present invention is that multiple technique continuitys are carried out, and step is simple, implement easily, wherein, in blanking, leaves surplus carrying out the outline at product two ends when die-cut, can effectively ensure the processing quality of subsequent technique; In stretching, control material flowing velocity by increasing waste material width, avoid product in process, to have wrinkling appearance drawing high; In side moulding, carry out moulding by using the mode of de-material by force, efficiently solve by conventional single action and tiltedly carve the limited problem of dimensional space that structure is brought, wherein, in side moulding, also increase technique convex closure operation, make product strike out the convex closure moulding as shown in D region in Fig. 7, the cracking phenomena of having avoided product acutely to produce due to change of shape in the time of parcel moulding; Parcel moulding can ensure that product accurate forming puts in place, and meanwhile, as shown in Figure 1, whole technique adds " empty step " in the place of insufficient space, not only improved the punching press effect of whole technique, and improved forming quality of products and ram efficiency.
Reach in freezer handle of the present invention diel is continuous stamping die, and upper die and lower die are all structure as a whole, and integrates multiple operation die, and wherein, the design of blanking shaping upper and blanking moulding counterdie, can effectively ensure the die-cut precision of product; The design of drawing and forming patrix and drawing and forming counterdie, can effectively avoid product part wrinkling, has ensured the presentation quality of product; Side shaping upper and side moulding counterdie adopt and tiltedly carve structure, and side moulding counterdie is provided with de-material thimble, can effectively solve the limited problem of bulk of mould; The dovetail groove slide block of parcel moulding counterdie setting can put product accurate forming in place; Separating shaping upper can separate product fast and accurately with the design that separates moulding counterdie with waste material, whole punching die structure compactness, symmetry, service efficiency is high, and manufacture difficulty is low, not only improve ram efficiency and the quality of workpiece, and reduced cost of goods manufactured.
Brief description of the drawings
Fig. 1 is the Product Rendering after reach in freezer handle Sheet Metal Forming Technology of the present invention.
Fig. 2 is the product cross section figure after drawn moulding in reach in freezer handle Sheet Metal Forming Technology of the present invention.
Fig. 3 is the product cross section figure after side moulding in reach in freezer handle Sheet Metal Forming Technology of the present invention.
Fig. 4 is the product cross section figure after parcel moulding in reach in freezer handle Sheet Metal Forming Technology of the present invention.
Fig. 5 is the local flow process structural representation of reach in freezer handle Sheet Metal Forming Technology of the present invention.
Fig. 6 is that reach in freezer handle does not add the product local structural graph after convex closure technique in the time of side moulding.
Fig. 7 is that reach in freezer handle has added the product local structural graph after convex closure technique when through side moulding.
Fig. 8 is the structural representation of reach in freezer handle of the present invention diel.
Fig. 9 is the lower die structure schematic diagram of reach in freezer handle of the present invention diel.
Figure 10 is the partial structurtes schematic diagram after the side shaping upper of reach in freezer handle of the present invention diel and side moulding counterdie coordinate.
Figure 11 is the partial structurtes schematic diagram of the parcel moulding counterdie of reach in freezer handle of the present invention diel.
Figure 12 is the profile of the parcel moulding counterdie partial structurtes of reach in freezer handle of the present invention diel.
Detailed description of the invention
As shown in Fig. 1 to 7, cooling cabinet handle Sheet Metal Forming Technology of the present invention is continuous stamping process, adopts continuous stamping die, and master operation is: the moulding-parcel-separation of blanking-stretching-side, and add empty step in the place of insufficient space.Further describe technological process of the present invention below:
(1) blanking
Stainless steel plate is positioned on continuous mould, undertaken by diel die-cut, make its be die-cut in the middle of narrow two ends wide plate structures 3, when die-cut, the two ends outline 31,32 of this plate structure 3 leaves surplus, that is increase the profile of this plate structure 3, as shown in Figure 5, Figure 6; Owing to increasing the profile of this plate structure 3, increase waste material width, thereby controlled material flowing velocity, overcome the wrinkling problem in A place causing due to the body shape changes trend at product two ends.
(2) stretch
By in step (1) the plate structure of blanking forming strike out by diel the shell structure that cross section roughly takes the shape of the letter U, as shown in Figure 2, and then the surplus that product two ends outline is stayed is fallen by laser cutting;
(3) side moulding
The good product of drawing and forming in step (2) is struck out to the oval-shaped shell knot that cross section is roughly breach, as shown in Figure 3; This side molding procedure adopts the mode of de-material by force to carry out moulding, and increases technique convex closure 4 in the inner side at product both ends, as shown in Figure 7;
(4) parcel
Product after side moulding in step (3) is struck out to roughly rounded shell structure of cross section again, as shown in Figure 4; This parcel operation adopts solid moulding, has overcome the moulding problem not in place of hollow forming;
(5) separate
By again die-cut the product of parcel forming in step (4), it is separated with waste material, become finished product.
Wherein, reach in freezer handle Sheet Metal Forming Technology adds free step in the time of diel insufficient space, so-called empty step be product in this operation shape or size without any variation, adding empty step is the space in order to increase front operation or rear operation, so just can better meet the requirement such as life-span or convenient for maintaining, improve product quality and stability.
As shown in Fig. 8 to 12, implement the diel of above-mentioned reach in freezer handle Sheet Metal Forming Technology, be continuous mould, comprise integrated patrix 1 respectively and the counterdie 2 matching with patrix 1.
Patrix 1 is structure as a whole, and comprise blanking shaping upper 11, drawing and forming patrix 12, side shaping upper 13, the parcel shaping upper 14 that order arranges successively and separate shaping upper 15,
Blanking shaping upper 11 is positioned at patrix 1 one ends, comprises edge-cutting and hole-punching punch 111;
Drawing and forming patrix 12 is positioned at a side of blanking shaping upper 11, comprises stretching die 121;
Side shaping upper 13 is positioned at a side of drawing and forming patrix 12, comprise holding pad 131 and a pair of drive block 132 of tiltedly carving, the holding pad 131 bottom center Formation cross-section that caves inward is roughly the guide groove of breach elliptical shape, tiltedly carve drive block 132 and be located at holding pad 131 both sides, wherein, each drive block 132 inner sides, bottom of tiltedly carving are equipped with inclined-plane;
Parcel shaping upper 14 is positioned at a side of drawing and forming patrix 13, comprises molding concave die 141;
Separate the side that shaping upper 15 is positioned at parcel shaping upper 14, be positioned at and touch 1 material relative the other end of shaping upper 11, up and down, separate shaping upper 15 and comprise separation punch 151.
Counterdie 2 is also structure as a whole, the guiding mechanism 26 that it comprises blanking moulding counterdie 21, drawing and forming counterdie 22, side moulding counterdie 23, parcel moulding counterdie 24, the separation moulding counterdie 25 that order arranges successively and is located at 2 one groups of relative sides of counterdie;
Blanking moulding counterdie 21 is positioned at counterdie 2 one ends, the setting that matches of the blanking shaping upper 11 of itself and patrix 1, and blanking moulding counterdie 21 comprises the edge-cutting and hole-punching die 211 mating with the edge-cutting and hole-punching punch 111 of blanking shaping upper 11;
Drawing and forming counterdie 22 is positioned at blanking moulding counterdie 21 1 sides, the setting that matches of the drawing and forming patrix 12 of itself and patrix 1, drawing and forming counterdie 22 comprises stretching convex die 221, stretching blank holder 222 and nitrogen spring 223, stretching convex die 221 is located on stretching blank holder 222 middle side part and is matched with the stretching die 121 of drawing and forming patrix 12, and nitrogen spring 223 is located between stretching convex die 221 and stretching blank holder 222.
Side moulding counterdie 23 is positioned at drawing and forming counterdie 22 1 sides, the setting that matches of the side shaping upper 13 of itself and patrix 1, side moulding counterdie 23 comprises side shaping mould backing plate 231, tiltedly carves sliding shoe 232, back bracket 233, slide block retracting spring 234, defelctor apron 235, compacted under male model 236 and de-material thimble 237; Tiltedly carve sliding shoe 232 for being symmetrically set in a pair of on side shaping mould backing plate 231, it matches with the drive block 132 of tiltedly carving of side shaping upper 13, and each tiltedly carving is equipped with outside sliding shoe 232 tops and tiltedly carves the inclined-plane that inclined-plane matches inside drive block 132 bottoms; Back bracket 233 is divided into two groups, is symmetrically set in respectively the both sides of tiltedly carving sliding shoe 232 bottoms; Slide block retracting spring 234 is symmetrically set in and tiltedly carves sliding shoe 232 inner side in opposite directions; Defelctor apron 235 is symmetrically set in the both sides of tiltedly carving sliding shoe 232 tops; Compacted under male model 236 is a pair of, and it is located at and tiltedly carves sliding shoe 232 inner sides, penetrates from a pair of gap of tiltedly carving between sliding shoe 232; De-material thimble 237 is located at compacted under male model 236 inner sides, penetrates from the gap between a pair of compacted under male model 236, under the promotion of hydraulic jack, can in the gap between a pair of compacted under male model 236, stretch back and forth.
Parcel moulding counterdie 24 is positioned at side moulding counterdie 23 1 sides, the setting that matches of the parcel shaping upper 14 of itself and patrix 1, parcel moulding counterdie 24 comprises parcel moulding backing plate 241, die holder 242, compacted under piece 243, dovetail sliding shoe 244, slide block retracting spring 245 and sliding shoe holder 246, and die holder 242 couplings are arranged on parcel moulding backing plate 241; Compacted under piece 243 coupling be arranged at die holder 242 upsides and with patrix 1 on wrap up shaping upper 14 upper molding concave die 141 match; Dovetail sliding shoe 244 couplings are arranged at compacted under piece 243 ends, and are connected with die holder 242 by slide block retracting spring 245; Sliding shoe holder 246 couplings are arranged at dovetail sliding shoe 244 one end.
Separate moulding counterdie 25 and be positioned at parcel moulding counterdie 24 1 sides, be positioned at counterdie 2 relative the other end of up and down material punching molding counterdie 21, its with separate shaping upper 15 setting that matches, separate moulding counterdie 25 and comprise the separation die 251 that is symmetrical in counterdie 2 one both sides, end, separate die 251 and match with the separation punch 151 that separates shaping upper 15 on patrix 1;
Guiding mechanism 26 is located on one group of relative side of counterdie 2 length directions, comprise guide post 261 and guide pad 262 for coiled strip, the one group of guide post 261 and the guide pad 262 that are positioned at edge-cutting and hole-punching die 211 two ends of blanking moulding counterdie 21, guide pad 262 is provided in a side of guide post 261 1 sides;
Wherein, be positioned at stretching blank holder 222 two ends of drawing and forming counterdie 22, the one group of guide post 261 that is positioned at side shaping mould backing plate 231 two ends of side moulding counterdie 23 and is positioned at that the two ends of parcel moulding counterdie 24 respectively establish and guide pad 262, guide pad 262 is provided in a side of on guide post 261.
The Sheet Metal Forming Technology of reach in freezer handle of the present invention, carries out for multiple Sheet Metal Forming Technology continuitys, and blanking punching molding and drawing and forming have effectively ensured tolerance and the presentation quality of product; Side moulding adopts the mode moulding of de-material by force, has improved the stability of product; Parcel moulding has effectively avoided traditional parcel process product to produce cracking and moulding problem not in place; Separating moulding can separate product accurately and effectively with waste material, whole technique not only makes formed product effective, and efficiency is high.
The diel of reach in freezer handle of the present invention is continuous stamping die, its structural design compactness, symmetry, upper die and lower die are all structure as a whole and integrate multiple operation die, significantly improve the ram efficiency of product, and product punching press is effective, steady quality, has improved the production efficiency of product, has reduced production cost.
Claims (6)
1. a reach in freezer handle Sheet Metal Forming Technology, is characterized in that: described technique is continuous stamping process, mainly comprises five operations of blanking-stretching-side moulding-parcel-separation, adopts continuous stamping die, adds empty step in the place of described die space deficiency;
In described blanking procedure, the outline indwelling surplus at the product two ends after punching molding;
Described side moulding adopts the mode of de-material by force to carry out moulding; Described side molding procedure increases technique convex closure in the inner side at product both ends;
Described parcel operation adopts solid moulding;
The flow process of this technique is as follows:
(1) blanking
Stainless steel plate is positioned on continuous mould, undertaken by diel die-cut, make its be die-cut in the middle of narrow two ends wide plate structures, when die-cut, the two ends outline of this plate structure leaves surplus, that is increases the profile of this plate structure;
(2) stretch
By in step (1) the plate structure of blanking forming strike out by diel the shell structure that cross section roughly takes the shape of the letter U, and then the surplus that product two ends outline is stayed is fallen by laser cutting;
(3) side moulding
The good product of drawing and forming in step (2) is struck out to the oblong shell body structure that cross section is roughly breach, and this side molding procedure adopts the mode of de-material by force to carry out moulding, and increases technique convex closure in the inner side at product both ends;
(4) parcel
Product after side moulding in step (3) is struck out to roughly rounded shell structure of cross section again, and this parcel operation adopts solid moulding;
(5) separate
By again die-cut the product of parcel forming in step (4), it is separated with waste material.
2. implement a diel for reach in freezer handle Sheet Metal Forming Technology as claimed in claim 1, it is characterized in that: described mould is continuous stamping die, comprise integrated upper die and lower die respectively;
Described patrix comprises blanking shaping upper, drawing and forming patrix, side shaping upper, the parcel shaping upper that order arranges successively and separates shaping upper;
Described counterdie comprises blanking moulding counterdie, drawing and forming counterdie, side moulding counterdie, the parcel moulding counterdie that order arranges successively and separates moulding counterdie;
Described blanking shaping upper comprises edge-cutting and hole-punching punch; Described blanking moulding counterdie mates with described blanking shaping upper, comprises the edge-cutting and hole-punching die matching with described edge-cutting and hole-punching punch;
Described drawing and forming patrix comprises stretching die; Described drawing and forming counterdie is positioned at described blanking moulding counterdie one side, comprise the stretching convex die of mating with described stretching die, stretch blank holder and be located at described stretching convex die and stretching blank holder between nitrogen spring;
Described side shaping upper comprises holding pad and is located at the wedge drive block of described holding pad both sides; Described side moulding counterdie comprises side shaping mould backing plate, wedge sliding shoe, back bracket, defelctor apron, slide block retracting spring, compacted under male model and de-material thimble.
3. reach in freezer handle as claimed in claim 2 diel, is characterized in that: described wedge sliding shoe and back bracket are all located on described side shaping mould backing plate, and described back bracket is positioned at the both sides of described wedge sliding shoe bottom; Described defelctor apron is located at the both sides on described wedge sliding shoe top; Described slide block retracting spring, compacted under male model and de-material thimble coupling are arranged at described wedge sliding shoe inner side.
4. reach in freezer handle as claimed in claim 2 diel, is characterized in that: described parcel shaping upper comprises molding concave die; Described parcel moulding counterdie comprises the compacted under piece mating with described upper molding concave die.
5. reach in freezer handle as claimed in claim 2 diel, is characterized in that: described separation shaping upper comprises separation punch; Described separation moulding counterdie comprises and the described separation die that separates punch coupling.
6. reach in freezer handle as claimed in claim 2 diel, is characterized in that: described counterdie also comprises the guiding mechanism on one group of relative side being located at described counterdie length direction, and described guiding mechanism comprises guide post and guide pad;
The two ends of described blanking moulding counterdie, drawing and forming counterdie, side moulding counterdie and parcel moulding counterdie be equipped with one group described in guide post and guide pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210323018.6A CN102825132B (en) | 2012-09-04 | 2012-09-04 | Punching technology of handle of cabinet freezer and punching die thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210323018.6A CN102825132B (en) | 2012-09-04 | 2012-09-04 | Punching technology of handle of cabinet freezer and punching die thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102825132A CN102825132A (en) | 2012-12-19 |
| CN102825132B true CN102825132B (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210323018.6A Expired - Fee Related CN102825132B (en) | 2012-09-04 | 2012-09-04 | Punching technology of handle of cabinet freezer and punching die thereof |
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| CN (1) | CN102825132B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979362A (en) * | 2012-12-31 | 2013-03-20 | 东莞市精力仁模具有限公司 | Cabinet door handle of household appliance |
| CN104438534B (en) * | 2014-12-03 | 2016-04-13 | 宁波李氏实业有限公司 | A kind of processing method of spray gun trigger |
| CN111790810A (en) * | 2020-06-02 | 2020-10-20 | 昆山达亚汽车零部件有限公司 | Mold for molding rear support piece and molding process thereof |
| CN111790812A (en) * | 2020-06-02 | 2020-10-20 | 昆山达亚汽车零部件有限公司 | Forming die for knife tube |
| CN113757986B (en) * | 2021-08-20 | 2022-12-13 | Tcl空调器(中山)有限公司 | Handle forming method, air conditioner outdoor unit and air conditioner |
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| CN1962112A (en) * | 2005-11-11 | 2007-05-16 | 比亚迪股份有限公司 | Method for forming platy pieces with negative angle |
| CN201783578U (en) * | 2010-07-27 | 2011-04-06 | 上海索菲玛汽车滤清器有限公司 | Stamping die for end cover meson of fuel filter |
| US8196498B2 (en) * | 2009-12-23 | 2012-06-12 | Wen-Pin Wang | Forming method for applying a continuous punching to a chain roller |
| CN102500675A (en) * | 2011-10-13 | 2012-06-20 | 北京航空航天大学 | Hot forming tool of titanium alloy thin-wall part and machining method of hot forming tool |
| CN202725834U (en) * | 2012-09-04 | 2013-02-13 | 东莞市精力仁模具有限公司 | Stamping die for cabinet freezer handle |
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2012
- 2012-09-04 CN CN201210323018.6A patent/CN102825132B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962112A (en) * | 2005-11-11 | 2007-05-16 | 比亚迪股份有限公司 | Method for forming platy pieces with negative angle |
| US8196498B2 (en) * | 2009-12-23 | 2012-06-12 | Wen-Pin Wang | Forming method for applying a continuous punching to a chain roller |
| CN201783578U (en) * | 2010-07-27 | 2011-04-06 | 上海索菲玛汽车滤清器有限公司 | Stamping die for end cover meson of fuel filter |
| CN102500675A (en) * | 2011-10-13 | 2012-06-20 | 北京航空航天大学 | Hot forming tool of titanium alloy thin-wall part and machining method of hot forming tool |
| CN202725834U (en) * | 2012-09-04 | 2013-02-13 | 东莞市精力仁模具有限公司 | Stamping die for cabinet freezer handle |
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| CN102825132A (en) | 2012-12-19 |
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