CN205587504U - Mould is cut in advance to half upper and lower shell of special pipe - Google Patents
Mould is cut in advance to half upper and lower shell of special pipe Download PDFInfo
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- CN205587504U CN205587504U CN201620207546.9U CN201620207546U CN205587504U CN 205587504 U CN205587504 U CN 205587504U CN 201620207546 U CN201620207546 U CN 201620207546U CN 205587504 U CN205587504 U CN 205587504U
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- cut
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- shaped punch
- insert
- holding pad
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Abstract
The utility model discloses a mould is cut in advance to half upper and lower shell of special pipe, including last mode structure and lower mode structure, it can be at relative lower mould structure up and down translation under guiding mechanism's the guide to go up the mode structure, going up the mode structure and including cope match -plate pattern and upper material pressing plate, the face milling has the location die cavity under the upper material pressing plate, down the mode structure is including pushing down flitch and lower bolster, relatively fixed between the two, and the last face milling that pushes down the flitch has the location profile, center on between cope match -plate pattern and the lower bolster it is equipped with that osculum end subassembly is cut to two sets of first slide wedges, two sets of second slide wedge, first shell and osculum end subassembly is cut to second shell to push down the flitch. The utility model discloses a mould is cut in advance to half upper and lower shell of special pipe will cut the osculum terminal surface, the outline line is cut to the side and half upper and lower shell junction both sides these three processes of incision are gone on in a stroke, and compact structure has saved the cost, has improved efficiency, and it provides good basis to process for continuation later, provides the guarantee for guaranteeing good machining precision.
Description
Technical field
This utility model relates to a kind of mould, a kind of particular manufacturing craft that part carries out processing of cutting.
Background technology
Mould of the present utility model for workpiece as shown in Figure 1, it is a kind of housing after punching press, in the middle of it
There is U-shaped protuberance, around U-shaped protuberance, there is a circle waste material edge, be processed further adding to this workpiece
Work becomes upper half shell as shown in Figure 2 and the lower half shell shown in accompanying drawing 3, and upper half shell and lower half shell can form such as Fig. 4
With the special pipe shown in Fig. 5, described special pipe is the shape of similar water pipe bent sub, and special pipe has inturned portions with outer
Bight portion, and a big port of port is little, therefore corresponding upper half shell and lower half shell also have inturned portions and excurvation
Part and big opening end and osculum end, this utility model for workpiece can be considered the disjunctor of upper half shell and lower half shell, on it
The big end of corresponding upper half shell links together with the big end of lower half shell, and it finally shapes and needs to cut out upper half shell and lower half shell
Big opening end and osculum end and the contour line of inflection and outer crook.In order to the upper half meeting precision conditions finally can be processed
Shell and lower half shell part, first have to workpiece is carried out pre-cut so that it is is conducive to the final shaping of upper half shell and lower half shell, needs
Design a kind of pre-cut mould.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, this utility model provides one at utmost to save
Cost-saving is improved production efficiency and finally shapes, for upper half shell and lower half shell, the upper lower casing pre-cut mould provided safeguard.
Technical scheme: for achieving the above object, special pipe of the present utility model upper and lower half-shell pre-cut mould includes that upper mold is tied
Structure and lower die structure, described upper die structure can under the guiding of guiding mechanism relative lower die structure upper and lower translation；Described upper mold
Structure includes cope match-plate pattern and upper holding pad, described upper holding pad can relative to cope match-plate pattern upper and lower translation, its translation have on
Lower limit；Upper holding pad lower end is milled with locating mould cavity, and upper end is provided with the flexible member A being in compressive state；Described lower mold
Structure includes lower holding pad and lower bolster, is relatively fixed between the two, and the upper end of lower holding pad is milled with location profile；Institute
State and be provided with two group of first wedge around described lower holding pad between cope match-plate pattern and lower bolster, two group of second wedge, upper half shell are cut
Osculum end assembly and lower half shell cut osculum end assembly；Side abnormal-shaped punch A it is separately installed with different with side on two group of first wedge
The upper half shell that shape drift B, side abnormal-shaped punch A and side abnormal-shaped punch B are respectively directed on workpiece and lower half shell junction
Both sides；Side abnormal-shaped punch C and side abnormal-shaped punch D, side abnormal-shaped punch C and side it is separately installed with on two group of second wedge
Abnormal-shaped punch D is respectively directed on workpiece correspond to correspond on the mid portion of the excurvation side of upper half shell part and workpiece
The mid portion of the excurvation side of lower half shell part；Described upper half shell cuts the cut-out that osculum end assembly includes being fixed on cope match-plate pattern
Drift A and side insert A being arranged on lower holding pad；Described lower half shell is cut osculum end assembly and is included being fixed on upper mold
Cut-out drift B on plate and side insert B being arranged on lower holding pad.
Further, the upper end of side insert A is the protruding U-shape agreed with upper half shell osculum end shape, corresponding
The edge of a knife of cut-out drift A be the depression U-shape agreed with upper half shell osculum end shape；Described side insert B
Upper end is the protruding U-shape agreed with lower half shell osculum end shape, and the edge of a knife of corresponding cut-out drift B is and lower half
The depression U-shape that shell osculum end shape is agreed with.
Further, being provided with ejector pin in the edge of a knife of described cut-out drift A and in the edge of a knife of cut-out drift B, ejector pin can
Sliding up and down relative to cutting off drift A and cut-out drift B, the upper end of each ejector pin is equipped with flexible member B to carry
For ejecting force.
Further, the location profile of described lower holding pad has at least one hole vertically downward, the most sliding in each hole
Moving and be combined with a lower jacking block, the lower end of each lower jacking block is equipped with the flexible member C being in compressive state and ejects to provide
Power.
Further, described lower holding pad is provided with side abnormity insert A, side abnormity insert B, side abnormity insert C with
And side abnormity insert D, respectively with side abnormal-shaped punch A, side abnormal-shaped punch B, side abnormal-shaped punch C and side abnormal-shaped punch
D coordinates excision waste material.
Further, described side abnormity insert A has notch A, described side abnormal-shaped punch A and can pass in and out its notch A,
The the most inboard of side abnormal-shaped punch A approach axis, lower block is installed in notch A；Have in abnormity insert B of described side
Notch B, described side abnormal-shaped punch B can pass in and out its notch B, in notch B at side abnormal-shaped punch B approach axis
Inboard is also provided with lower block；Described lower block is taper, on the direction horizontally entering into notch A or notch B, under
The area of section of block is gradually increased by little.
Further, described upper holding pad has at least one square groove, described cope match-plate pattern is fixed with and square groove number
Measuring equal upper guide pad, described square groove is slidably matched with described upper guide pad, and glide direction is above-below direction.
Beneficial effect: special pipe of the present utility model upper and lower half-shell pre-cut mould will cut osculum end face, side cut contour line with
And upper and lower this three process of half-shell junction two lateral incision is carried out in a stroke, compact conformation, rationally distributed, and
Provide cost savings, greatly improve efficiency, and provide good basis for the processing that continues afterwards, good for ensureing
Machining accuracy provide guarantee.
Accompanying drawing explanation
Accompanying drawing 1 is the structure chart of the targeted workpiece of mould；
Accompanying drawing 2 is the structure chart of the upper half shell after shaping；
Accompanying drawing 3 is the structure chart of the lower half shell after shaping；
Accompanying drawing 4 is the front view of special pipe；
Accompanying drawing 5 is the top view of special pipe；
Accompanying drawing 6 is the top view of special pipe upper and lower half-shell pre-cut lower mould structure；
Accompanying drawing 7 is the top view of special pipe upper and lower half-shell pre-cut upper mould structure；
Accompanying drawing 8 is that the overall A-A relative to accompanying drawing 6 of mould is to sectional view；
Accompanying drawing 9 is that the overall B-B relative to accompanying drawing 6 of mould is to the Local map of sectional view；
Accompanying drawing 10 is that the overall C-C relative to accompanying drawing 6 of mould is to the Local map of sectional view；
Accompanying drawing 11 is that the overall D-D relative to accompanying drawing 6 of mould is to the Local map of sectional view；
Accompanying drawing 12 cuts the structure chart of osculum end assembly for upper half shell；
Accompanying drawing 13 is that the overall E-E relative to accompanying drawing 6 of mould is to the Local map of sectional view；
Accompanying drawing 14 cuts the structure chart of osculum end assembly for lower half shell；
Accompanying drawing 15 is that the overall F-F relative to accompanying drawing 6 of mould is to the Local map of sectional view.
In accompanying drawing, the title of each label indication part is as follows:
1, lower bolster；2, cope match-plate pattern；3, lower mold foot；4, discharging screw；5, nitrogen spring A；6, upper mold foot；
7, lower cushion block；8, guiding mechanism；9, nitrogen spring B；10, bottom plate；11, punch fixing plate A；12、
Drift backing plate A；13, punch fixing plate B；14, side abnormal-shaped punch A；15, side abnormal-shaped punch B；16, side edge
Block A；17, side abnormity insert C；18, side abnormity insert D；19, side abnormity insert A；20, side abnormity insert B；
21, lower jacking block A；22, lower jacking block B；23, lower jacking block C；24, lower cushion block A；25, lower cushion block B；26, under
Block；27, lower jacking block D；28, upper guide pad；29, upper holding pad；30, upper inserted block backing plate；31, cut-out is fixing
Block A；32, fixed block B is cut off；33, drift A is cut off；34, limited post；35, lower cushion block；36, lower push rod；
37, upper ejector pin；38, the first wedge；39, upper mounting plate；40, lower installation board；41, lower holding pad；42, second
Wedge；43, side abnormal-shaped punch C；44, side abnormal-shaped punch D；45, drift B is cut off；46, side insert B；47、
Rectangular Spring；48, ejector pin.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
Special pipe upper and lower half-shell pre-cut mould as shown in accompanying drawing 6-15, including upper die structure and lower die structure, described
Upper die structure can under the guiding of guiding mechanism 8 on relative lower die structure upper and lower translation, and upper die structure and lower die structure all
Limited post 34 is installed spacing for mould is carried out matched moulds.Described guide frame 8 includes guide pillar and guide pin bushing, described in lead
Post is fixed on upper die structure, and described guide pin bushing is fixed on lower die structure, and guide pillar is concentric with guide pin bushing to be installed, and guide pillar with lead
It it is slip cooperating relationship between set.
Described upper die structure includes upper mounting plate 39, upper mold foot 6, cope match-plate pattern 2 and upper holding pad 29 the most successively,
For the relation that is connected between former three.Have two square grooves on described upper holding pad 29, described cope match-plate pattern 2 is fixed with
The upper guide pad 28 equal with square groove quantity, described square groove is slidably matched with described upper guide pad 28, glide direction
For above-below direction.Upper holding pad 29 upper end is provided with discharging screw 4, and discharging screw 4 is through the shoulder hole on cope match-plate pattern 2
And and shoulder hole between for being slidably matched, the effect of discharging screw 4 is the stroke limiting upper holding pad 29.Holding pad 29
Being pressed with flexible member A, flexible member A herein between upper end and upper mounting plate 39 is nitrogen spring A5, nitrogen spring
The effect of A5 is the power providing binder location when matched moulds, makes upper mounting plate 39 reset after die sinking.
Upper holding pad 29 lower end is milled with locating mould cavity, and locating mould cavity agrees with the outer surface profile of workpiece to be processed.
Described lower die structure include the most successively lower holding pad 41, lower cushion block 7, lower bolster 1, lower mold foot 3 and
Lower installation board 40, for the relation that is connected between five, the upper end of lower holding pad 41 is milled with location profile, and its shape is with to be added
Inside work workpiece, profile is agreed with, and lower holding pad 41 coordinates with upper holding pad 29 workpiece to be processed is carried out profile location.Under
Have three holes vertically downward in the location profile of holding pad 41, in each hole, be all sliding combined with a lower jacking block,
Being respectively lower jacking block A21, lower jacking block B22 and lower jacking block C23, the lower end of each lower jacking block is equipped with and is in compression shape
The flexible member C of state is to provide ejecting force, and flexible member C is nitrogen spring A5 herein.
It is provided with two group of first wedge 38, two group around described lower holding pad 41 between described cope match-plate pattern 2 and lower bolster 1
Two wedges 42, upper half shell cut osculum end assembly and lower half shell cuts osculum end assembly.
Side abnormal-shaped punch A14 and side abnormal-shaped punch B15, side abnormal-shaped punch A14 it is separately installed with on two group of first wedge 38
Both sides with side abnormal-shaped punch B15 is respectively directed to workpiece upper half shell and the junction of lower half shell, are used for upper half shell and lower half
Two lateral incisions of the junction of shell.Position corresponding on described lower holding pad 40 be separately installed with side abnormity insert A19 with
Side abnormity insert B20 is for coordinating the incision action of side abnormal-shaped punch A14 and side abnormal-shaped punch B15, side abnormity insert
A19 and side abnormity insert B20 are mold insert, convenient processing and replacing.
Have notch A, described side abnormal-shaped punch A14 in abnormity insert A19 of described side and can pass in and out its notch A, notch A
In the most inboard of side abnormal-shaped punch A14 approach axis, lower block 26 is installed；Have in abnormity insert B20 of described side
Notch B, described side abnormal-shaped punch B15 can pass in and out its notch B, at side abnormal-shaped punch B15 approach axis in notch B
The most inboard lower block 26 is also installed；Described lower block 26 is taper, is horizontally entering into notch A or the side of notch B
Upwards, the area of section of lower block 26 is gradually increased by little.The effect of lower block 26 be enable side cut waste material smooth and easy fall
Under.
Further, described side abnormal-shaped punch A14 treats on workpiece with the shape of edge of a knife one end of side abnormal-shaped punch B15
The profile of cut part is agreed with, and so can be cut by waste material the shortest time, workpiece uniform force when side is cut, it is to avoid work
Part deforms when side is cut and cut place is coarse.
Side abnormal-shaped punch C43 and side abnormal-shaped punch D44, side abnormal-shaped punch C43 it is separately installed with on two group of second wedge 42
It is respectively directed on workpiece on mid portion and the workpiece of the excurvation side corresponding to upper half shell part with side abnormal-shaped punch D44
Corresponding to the mid portion of the excurvation side of lower half shell part, for by the waste material excision of corresponding part；Described lower holding pad
Position corresponding on 40 is separately installed with side abnormity insert C17 and side abnormity insert D18, is used for coordinating side abnormity punching
Head C43 and side abnormal-shaped punch D44 removes the operation of waste material, side abnormity insert C17 and side abnormity insert D18 from side cut
For mold insert, convenient processing and replacing.
Described upper half shell is cut cut-out drift A33 that osculum end assembly includes being fixed on cope match-plate pattern and is arranged on lower binder
Side insert A16 on plate；The upper end of side insert A16 be with workpiece on corresponding to the osculum end shape of upper half shell part
The protruding U-shape agreed with, the edge of a knife of corresponding cut-out drift A33 is depression U agreed with upper half shell osculum end shape
Shape shape.
Described lower half shell is cut cut-out drift B45 that osculum end assembly includes being fixed on cope match-plate pattern and is arranged on lower binder
Side insert B46 on plate.The upper end of described side insert B46 is the protruding U agreed with lower half shell osculum end shape
Shape shape, the edge of a knife of corresponding cut-out drift B45 is the depression U-shape agreed with lower half shell osculum end shape.
It is waste material entirety to be cut that above-mentioned cut-out drift A33, the edge of a knife of cut-out drift B45 make the purpose of above-mentioned shape
Remove, it is to avoid the linearity edge of a knife of general cutting knife causes deformation and the sawtooth of work piece cut end face when cutting from top to bottom.
Being provided with ejector pin 48 in the edge of a knife of described cut-out drift A33 and in the edge of a knife of cut-out drift B45, ejector pin 48 can phase
Sliding up and down for cutting off drift A33 and cut-out drift B45, the upper end of each ejector pin 48 is equipped with flexible member B
To provide ejecting force, flexible member B herein is Rectangular Spring 47.Ejector pin 48 is for ejecting the waste material scaled off, anti-
Only waste material is stayed in the edge of a knife, the cutting of the next workpiece of impact.
This mould has excised upper half shell excurvation marginal center while being cut out by the osculum end face of upper half shell Yu lower half shell
The waste material of contour line and lower half shell excurvation marginal center, is to lay the groundwork to cut out behind complete excurvation contour line, if because
Thinking once to cut out excurvation contour line, the part of once resecting is too much, can cause unbalance stress, causes that part is wrinkling, precision
The consequences such as reduction, and tooling cost is high.And simultaneously by the both sides of the edge of upper half shell and the big end junction of lower half shell
Cut, such purpose is to lay the groundwork for cutting completely through below, if because thinking once to cut, from top to bottom will be the longest rush
Journey, and it is bad to cut effect, precision is the highest, so first excises from side by the both sides holding greatly junction, can make last
Cut and become simple, and machining accuracy is secure.
Special pipe of the present utility model upper and lower half-shell pre-cut mould will cut osculum end face, contour line is cut in side and upper and lower half
Lateral incision this three process in shell junction two is carried out in a stroke, and compact conformation is rationally distributed, and provides cost savings,
Greatly improve efficiency, and provide good basis for the processing that continues afterwards, for ensureing that good machining accuracy carries
Supply to ensure.
It should be noted that the component name having in above-mentioned component name is with suffix A, B, C, D, A, B etc. herein
Only play differentiation effect, illustrate that the part of band A and band B is not same part, do not play remaining restriction effect.
The above is only preferred implementation of the present utility model, it should be pointed out that: for those skilled in the art
For, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and profit
Decorations also should be regarded as protection domain of the present utility model.
Claims (7)
1. a special pipe upper and lower half-shell pre-cut mould, it is characterised in that: include upper die structure and lower die structure, institute
State upper die structure can under the guiding of guiding mechanism relative lower die structure upper and lower translation；Described upper die structure include cope match-plate pattern with
And upper holding pad, described upper holding pad can be relative to cope match-plate pattern upper and lower translation, and its translation has the most spacing；Upper holding pad
Lower end is milled with locating mould cavity, and upper end is provided with the flexible member A being in compressive state；Described lower die structure includes lower holding pad
And lower bolster, it being relatively fixed between the two, the upper end of lower holding pad is milled with location profile；Described cope match-plate pattern and lower bolster
Between be provided with two group of first wedge around described lower holding pad, two group of second wedge, upper half shell cut osculum end assembly and under
Half-shell cuts osculum end assembly；Side abnormal-shaped punch A and side abnormal-shaped punch B, side abnormity it is separately installed with on two group of first wedge
The both sides of the upper half shell that drift A and side abnormal-shaped punch B are respectively directed on workpiece and lower half shell junction；Two group second oblique
It is separately installed with side abnormal-shaped punch C on wedge to refer to respectively with side abnormal-shaped punch D with side abnormal-shaped punch D, side abnormal-shaped punch C
Corresponding to excurvation corresponding to lower half shell part on the mid portion of excurvation side of upper half shell part and workpiece on workpiece
The mid portion of side；Described upper half shell is cut cut-out drift A that osculum end assembly includes being fixed on cope match-plate pattern and is arranged on
Side insert A on lower holding pad；Described lower half shell cuts the cut-out drift B that osculum end assembly includes being fixed on cope match-plate pattern
And side insert B being arranged on lower holding pad.
A kind of special pipe upper and lower half-shell pre-cut mould the most according to claim 1, it is characterised in that: side is inlayed
The upper end of block A is the protruding U-shape agreed with upper half shell osculum end shape, and the edge of a knife of corresponding cut-out drift A is
The depression U-shape agreed with upper half shell osculum end shape；The upper end of described side insert B is and lower half shell osculum end
The protruding U-shape that shape is agreed with, the edge of a knife of corresponding cut-out drift B is recessed with what lower half shell osculum end shape was agreed with
Fall into U-shape.
A kind of special pipe upper and lower half-shell pre-cut mould the most according to claim 2, it is characterised in that cut described in:
Be equipped with ejector pin in the edge of a knife of disconnected drift A and in cutting off the edge of a knife of drift B, ejector pin can relative to cut off drift A with
And cut-out drift B slides up and down, the upper end of each ejector pin is equipped with flexible member B to provide ejecting force.
A kind of special pipe upper and lower half-shell pre-cut mould the most according to claim 1, it is characterised in that: under described
Have at least one hole vertically downward in the location profile of holding pad, in each hole, be all sliding combined with a lower jacking block,
The lower end of each lower jacking block is equipped with the flexible member C being in compressive state to provide ejecting force.
A kind of special pipe upper and lower half-shell pre-cut mould the most according to claim 1, it is characterised in that: under described
Side abnormity insert A, side abnormity insert B, side abnormity insert C and side abnormity insert D are installed, respectively on holding pad
Excision waste material is coordinated with side abnormal-shaped punch A, side abnormal-shaped punch B, side abnormal-shaped punch C and side abnormal-shaped punch D.
A kind of special pipe upper and lower half-shell pre-cut mould the most according to claim 5, it is characterised in that: described side
Have notch A, described side abnormal-shaped punch A in abnormity insert A and can pass in and out its notch A, rush at side abnormity in notch A
Head the most inboard of A approach axis is provided with lower block；Notch B, described side abnormity is had in abnormity insert B of described side
Drift B can pass in and out its notch B, is also provided with lower block the most inboard of side abnormal-shaped punch B approach axis in notch B；
Described lower block is taper, on the direction horizontally entering into notch A or notch B, the area of section of lower block by little by
Cumulative greatly.
A kind of special pipe upper and lower half-shell pre-cut mould the most according to claim 1, it is characterised in that: on described
Holding pad has at least one square groove, and described cope match-plate pattern is fixed with the upper guide pad equal with square groove quantity, described
Square groove is slidably matched with described upper guide pad, and glide direction is above-below direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207546.9U CN205587504U (en) | 2016-03-17 | 2016-03-17 | Mould is cut in advance to half upper and lower shell of special pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207546.9U CN205587504U (en) | 2016-03-17 | 2016-03-17 | Mould is cut in advance to half upper and lower shell of special pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205587504U true CN205587504U (en) | 2016-09-21 |
Family
ID=56928828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620207546.9U Active CN205587504U (en) | 2016-03-17 | 2016-03-17 | Mould is cut in advance to half upper and lower shell of special pipe |
Country Status (1)
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| CN (1) | CN205587504U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642735A (en) * | 2016-03-17 | 2016-06-08 | 无锡曙光模具有限公司 | Pre-cutting die for upper half shell and lower half shell of special-shaped pipe |
| CN107321836A (en) * | 2017-07-04 | 2017-11-07 | 西安飞机工业（集团）有限责任公司 | A kind of collar class part punching end mould and its application method |
| CN108326114A (en) * | 2017-12-19 | 2018-07-27 | 无锡曙光模具有限公司 | A kind of incision mold of automobile case |
| CN109317583A (en) * | 2018-09-29 | 2019-02-12 | 深圳赛意法微电子有限公司 | The Trim Molding method of semiconductor devices |
| CN110947839A (en) * | 2019-11-28 | 2020-04-03 | 无锡曙光模具有限公司 | Forming die of automobile engine machine storehouse covering |
| CN110947839B (en) * | 2019-11-28 | 2024-04-26 | 无锡曙光模具有限公司 | Forming die of automobile engine machine storehouse covering |
-
2016
- 2016-03-17 CN CN201620207546.9U patent/CN205587504U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642735A (en) * | 2016-03-17 | 2016-06-08 | 无锡曙光模具有限公司 | Pre-cutting die for upper half shell and lower half shell of special-shaped pipe |
| CN107321836A (en) * | 2017-07-04 | 2017-11-07 | 西安飞机工业（集团）有限责任公司 | A kind of collar class part punching end mould and its application method |
| CN108326114A (en) * | 2017-12-19 | 2018-07-27 | 无锡曙光模具有限公司 | A kind of incision mold of automobile case |
| CN109317583A (en) * | 2018-09-29 | 2019-02-12 | 深圳赛意法微电子有限公司 | The Trim Molding method of semiconductor devices |
| CN109317583B (en) * | 2018-09-29 | 2020-06-23 | 深圳赛意法微电子有限公司 | Semiconductor device cutting rib forming method and semiconductor device processing equipment |
| CN110947839A (en) * | 2019-11-28 | 2020-04-03 | 无锡曙光模具有限公司 | Forming die of automobile engine machine storehouse covering |
| CN110947839B (en) * | 2019-11-28 | 2024-04-26 | 无锡曙光模具有限公司 | Forming die of automobile engine machine storehouse covering |
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| C14 | Grant of patent or utility model | ||
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