CN108180691A - A kind of rhone and its stamping die and Sheet Metal Forming Technology - Google Patents
A kind of rhone and its stamping die and Sheet Metal Forming Technology Download PDFInfo
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- CN108180691A CN108180691A CN201810135445.9A CN201810135445A CN108180691A CN 108180691 A CN108180691 A CN 108180691A CN 201810135445 A CN201810135445 A CN 201810135445A CN 108180691 A CN108180691 A CN 108180691A
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- Prior art keywords
- die
- punch
- rhone
- blanking
- punching
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention belongs to stamping die fields, and in particular to a kind of rhone and its Sheet Metal Forming Technology and stamping die, the rhone include draining slot shell and straight-arm；Draining slot shell includes groove sidewall and slot bottom, is connected as a single entity between groove sidewall bottom and slot bottom by transition arc, and slot bottom is tetragonous wimble structure, and the vertex of tetragonous wimble structure is located at the lower section of groove sidewall bottom, and slot bottom offers through-hole；Straight-arm is set at the top of groove sidewall.The groove sidewall of rhone of the present invention be cuboid tubular structure, slot bottom be tetragonous wimble structure, convenient for the water in rhone along slot bottom crest line by and by slot bottom through-hole discharge rhone, good drainage effect can be obtained using the structure；The present invention simplifies technology difficulty, rhone processing quality is high, has saved production cost, has improved production efficiency by a kind of Sheet Metal Forming Technology and its mold.
Description
Technical field
The invention belongs to stamping die fields, and in particular to a kind of rhone and its stamping die and Sheet Metal Forming Technology.
Background technology
Rhone in current refrigerator is generally placed above fruit and vegetable box, and user can see the presence of rhone；Draining
Slot distance evaporator is nearer, therefore temperature is relatively low at rhone, and the water in rhone easily freezes；If user is in refrigerator
When refrigerator doors are opened under refrigerating state, it is found that have more frost in rhone, influence drainage effect, and using in user
Unnecessary puzzlement is caused in journey.
When stamping parts usually with drawing property designs Sheet Metal Forming Technology, there are certain risks；And stamping process program
The reasonability of design will reduce the stamping parts and manufacture successful risk factor；The drawing part of profiled shape is compared to regular shape
Tensioning member, punch forming process is more difficult；Other than the uncertainty of drawing terminal effects, also initial and midway work
The expansion of sequence product and compact dimensions are difficult to determine；The outer shape of rhone sheet metal component includes a variety of geometric elements；Punching press is drawn
Deep processing step calculates complicated, is not easy to determine, its mouth rim is also easy to produce drawing crack after easily forming drawing, wrinkles, drawing depth and
The defects of related forming dimension is not in place.
Accordingly, it is desirable to provide the Sheet Metal Forming Technology and drainage effect that a kind of punch process is high-quality, production efficiency is high are better
Rhone.
Invention content
The present invention is intended to provide a kind of draining simple in structure, drainage effect is good, punch process is high-quality, production efficiency is high
Slot, it is then another object of the present invention to provide corresponding stamping die and Sheet Metal Forming Technology.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of rhone, including draining slot shell and straight-arm；Draining slot shell includes groove sidewall and slot bottom, groove sidewall bottom and slot
It is connected as a single entity between bottom by transition arc, slot bottom is tetragonous wimble structure, and the vertex of tetragonous wimble structure is located at groove sidewall bottom
Lower section, slot bottom offer through-hole；Straight-arm is set at the top of groove sidewall.
Further, groove sidewall is cuboid tubular structure；The inside radius of transition arc is 10mm, outer radius 12mm；
Through-hole is set on the vertex of tetragonous wimble structure；The high 6mm of straight-arm.
A kind of stamping die of rhone, including pre- cupping tool, blanking and punching mold and whole cupping tool；Pre- Drawing Die
Tool includes pre- drawing punch-pin and pre- drawing cavity plate, is offered on pre- drawing cavity plate and the matched pre- Drawing Die of pre- drawing punch-pin
Chamber；Blanking and punching mold includes punch, punching concave die, blanking die and blanking punch, punch and the punching below punch
Cavity plate matches, and punching concave die is set between blanking die and blanking punch, and blanking die and blanking punch match；Whole drawing
Mold includes whole drawing punch-pin and whole drawing cavity plate, is offered on whole drawing cavity plate and the matched whole Drawing Die of whole drawing punch-pin
Chamber.
Further, the cross section of pre- drawing punch-pin and pre- drawing die cavity is rectangle, pre- drawing punch-pin and pre- Drawing Die
The bottom of chamber is fillet, and pre- drawing male bottom radius of corner is 8~10mm；Pre- drawing male bottom radius of corner is less than pre-
Drawing mold cavity bottoms radius of corner, specially：Pre- drawing male bottom radius of corner and pre- drawing mold cavity bottoms radius of corner phase
The thickness of a poor shear.
Further, the bottom of whole drawing punch-pin and whole drawing die cavity is tetragonous wimble structure；The height of whole drawing die cavity
More than the height of pre- drawing die cavity.
Further, pre- drawing punch-pin is equipped with the elastic material plate for compressing blank to be processed.
Further, blanking and punching mold further includes blanking holding pad and elastic die pad；Blanking holding pad and elastic top
Flitch is respectively arranged on the both sides up and down of punching concave die.
Rhone Sheet Metal Forming Technology is carried out using the stamping die of above-mentioned rhone, is included the following steps,
（1）Blanking：According to the shape and size of metal plate punching part blank extension theoretical calculation blank；It is sheared according to result of calculation
To shear；
（2）Pre- drawing：Shear is set on pre- drawing cavity plate；Punching machine downlink is compressed shear with elastic material plate；Pre- drawing is convex
Part shear is pressed into the pre- drawing die cavity of pre- drawing cavity plate by mould, forms flanged flat pre- drawing part；
（3）Blanking, punching：It is located in punching concave die after flat pre- drawing part is overturn 180 °；Blanking holding pad and elastic liftout
Plate compresses flat pre- drawing part, and blanking die and blanking punch carry out blanking to the ribbed portion of flat pre- drawing part, are formed
Flanged flange drawing part；Punch and punching concave die are punched out the bottom surface of flange drawing part, obtain punching flange prestretching
Deep part；
（4）Whole drawing：It is set on after punching flange prestretching depth part is overturn 180 ° in whole drawing cavity plate；Whole drawing punch-pin is by punching convex
The whole Drawing Die intracavitary of the whole drawing cavity plate of edge pre- drawing part press-in is by flange drawing into straight wall.
Further, shear is aluminium sheet；The size of shear compares step（1）Calculate the big 5~10mm of size of blank.
Further, the drawing height of flat pre- drawing part is higher 3~5mm than final products.
Compared with prior art, the beneficial effects of the invention are as follows：
（1）The groove sidewall of rhone of the present invention is cuboid tubular structure, and slot bottom is tetragonous wimble structure, convenient for the water in rhone
Along slot bottom crest line by and pass through slot bottom through-hole discharge rhone；Good drainage effect can be obtained using the structure.
In view of the total height of stamping parts has exceeded the once drawing limit of drawing theory, need secondary deep-drawing that could complete, and rhone slot
Bottom is the tetragonous wimble structure with crest line, and relative to traditional drawing part, drawing sequence calculates and original blank auger Spread plane dimension exists
Rhone drawing part is divided into two parts by certain difficulty, the present invention：Regular cuboid+irregular bullet；The former is according to punching
Drawing calculation process is pressed, drawing, the latter's once drawing and forming ensure that the accuracy of stretching twice for progress.The present invention uses two
Secondary drawing sequence：Wherein pre- drawing completes cuboid drawing and forming, and drawing height is higher 3 ~ 5mm than final products, bottom and side
Wall with the round-corner transition of R10mm, flows convenient for blank material in drawing process, and facility is successfully provided for drawing；It is also to be simultaneously
Drawing goes out the blank volume that cone-shaped reserves needs in whole drawing sequence.The application is different from traditional drawing sequence and calculates：It adopts
Ensure that pre- drawing completes the long institute's cube drawing height needed with bottom transition circular arc measure is increased；By increasing drawing height
Offer prestores blank volume to ensure that bottom pyramidal shape being capable of once drawing and forming.
（2）Height is reserved in for the straight wall of 6mm on flange by the application by pre- drawing, after carry out shape blanking again and rush
Hole, the spare part outside measurement precision in drawing process is ensured reduce difficulty and required precision that drawing part calculates developed dimension
While, facilitate the making of blanking die.
（3）The present invention is by pre- drawing, whole drawing process twice, while implementation rule cuboid drawing and forming, passes through
Reserved drawing blank volume, by 6mm flanges drawing into completing irregular bullet while straight wall again in whole drawing sequence
Drawing and forming, simplify process, improve production efficiency.
（4）The edge quality of rhone has obtained good control, and there is no cracking phenomenas；Process route is simple simultaneously,
Rationally, production efficiency is improved, has saved production cost；The present invention avoids traditional drawing work by the implementation of above-mentioned operation
Skill simplifies technical process to troublesome calculations such as blank extension, intermediate processs.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the structure diagram of rhone of the present invention；
Fig. 2 is the schematic diagram of pre-stretching mold；
Fig. 3 is the schematic diagram of blanking and punching mold；
Fig. 4 is the schematic diagram of whole cupping tool；
In figure：1st, draining slot shell；2nd, straight-arm；3rd, transition arc；4th, through-hole；5th, pre- drawing punch-pin；6th, elastic material plate；7th, it falls
Expect cavity plate；8th, blanking holding pad；9th, punching concave die；10th, blanking punch；11st, elastic die pad；12nd, punch；13rd, whole drawing is convex
Mould；14th, whole drawing cavity plate；15th, pre- drawing cavity plate.
Specific embodiment
All features or disclosed all methods disclosed in this specification or in the process the step of, in addition to mutually exclusive spy
Other than sign and/or step, it can combine in any way.
It elaborates below in conjunction with the accompanying drawings to the present invention.
As shown in Figure 1, a kind of rhone, including draining slot shell 1 and straight-arm 2；Draining slot shell 1 includes groove sidewall and slot
Bottom；Groove sidewall is the cuboid tubular structure that upper and lower side is open, and is linked as between groove sidewall bottom and slot bottom by transition arc 3
One, the wherein inside radius of transition arc 3 are 10mm, outer radius 12mm；Slot bottom be tetragonous wimble structure, the top of tetragonous wimble structure
Point offers through-hole 4 positioned at the lower section of groove sidewall bottom, slot bottom, and through-hole is set on the vertex of tetragonous wimble structure, convenient for water along slot
The crest line at bottom by and pass through the through-hole 4 of slot bottom and discharge；Straight-arm 2 is set at the top of groove sidewall, the vertex of straight-arm 2 and tetragonous wimble structure
It is located at the both sides of groove sidewall, the high 6mm of straight-arm respectively.
A kind of stamping die of rhone, including pre- cupping tool, blanking and punching mold and whole cupping tool.
As shown in Fig. 2, pre- cupping tool includes pre- drawing punch-pin 5, pre- drawing cavity plate 15 and on pre- drawing punch-pin 5
Elastic material plate 6 is offered on pre- drawing cavity plate 15 and is matched with pre- drawing punch-pin 5 and positioned at the pre- of pre- 5 lower section of drawing punch-pin
The cross section of drawing die cavity, pre- drawing punch-pin 5 and pre- drawing die cavity is rectangle, the bottom of pre- drawing punch-pin 5 and pre- drawing die cavity
Portion is fillet, wherein 5 bottom roundings radius of pre- drawing punch-pin is 8~10mm, pre- 5 bottom roundings radius of drawing punch-pin is less than pre-
Drawing mold cavity bottoms radius of corner, specially：Pre- drawing male bottom radius of corner and pre- drawing mold cavity bottoms radius of corner phase
The thickness of a poor shear；Elastic material plate 6 is located in pre- drawing matrix cavity to compress blank, and elastic material plate 6 passes through
Spring part is set on pre- drawing punch-pin 5, and when blank is pressed into pre- drawing die cavity by pre- drawing punch-pin 5, spring plays buffering and subtracts
The effect of shake avoids blank to be processed from being pulled off.
As shown in figure 3, blanking and punching mold includes punch 12, punching concave die 9, blanking die 7 and blanking punch 10, punch
12 are located at 9 top of punching concave die and are matched with punching concave die 9, are arranged with to compress blank to be processed in punching concave die 9
Blanking holding pad 8, be arranged with blanking punch 2 on blanking holding pad 8, blanking punch 2 has to be used cooperatively with blanking punch 2
Blanking punch 10, be arranged with elastic die pad on blanking punch 10.
As shown in figure 4, whole cupping tool includes whole drawing punch-pin 13 and whole drawing recessed 14, offered on whole drawing cavity plate 14
With the matched whole drawing die cavity of whole drawing punch-pin 13, the bottom of whole drawing punch-pin 13 and whole drawing die cavity is pyramidal structure；
The height of whole drawing die cavity is more than the height of pre- drawing die cavity.
A kind of rhone Sheet Metal Forming Technology, includes the following steps,
（1）Blanking：According to constant-volume principle during sheet metal component drawing, the weight weight calculation spread across to stamping parts of blank is false
Determine during drawing that blank thickness is constant, calculate the shape and size of blank before pre- drawing；According to result of calculation, treated by plate shearing machine
Processing aluminium sheet is sheared, and obtains the shear of aluminum material, the wherein big 5~10mm of size of the size of shear than precalculating；
（2）Pre- drawing：By step（1）Gained shear is set on the pre- drawing cavity plate 15 of pre- deep-drawing shaping die；Punching machine downlink is used
Shear is pressed on pre- 15 upper surface of drawing cavity plate by elastic material plate 6；Shear is slowly pressed into pre- drawing cavity plate by pre- drawing punch-pin 5
In 15 pre- drawing die cavity, cut wherein pre- drawing male bottom radius of corner differs one with pre- drawing mold cavity bottoms radius of corner
The thickness of plate, since shear actual size is big compared with the size precalculated so that part shear enters in pre-stretching die cavity, remaining
Part shear stay on pre- drawing cavity plate 15, obtain flanged pin bottom surface be plane flat pre- drawing part, flat pre- drawing part
Drawing height it is higher 3~5mm than final products, the slot bottom for whole drawing tetragonous wimble structure, which is reserved, has needed blank volume；
（3）Blanking, punching：By step（2）The flat pre- drawing part of gained is located in punching concave die 9 and after overturning 180 ° by outside it
Shape flat pre- drawing part is positioned, and blanking holding pad 8 and elastic die pad 11 are by the upper and lower surface pressure of flat pre- drawing part
Tightly, blanking die 7 and blanking punch 10 carry out blanking to the ribbed portion of flat pre- drawing part, form the flange of band part flange
Drawing part；Punch 12 moves downward, and the bottom surface of the flange drawing part in punching concave die 9 is punched out, it is pre- to obtain punching flange
Drawing part；
（4）Whole drawing：By step（3）Gained punching flange prestretching depth part is set in whole drawing cavity plate 14 and is relied on after overturning 180 °
Its whole drawing die cavity is positioned；Punching machine downlink, whole drawing punch-pin 13 slowly enter the whole Drawing Die intracavitary of whole drawing cavity plate 14,
And punching flange prestretching depth part is pressed into the whole drawing die cavity of whole drawing cavity plate 14, obtain the whole drawing that bottom is tetragonous wimble structure
Part, finally, by remaining flange drawing into the straight wall 2 of product.
The groove sidewall of rhone of the present invention is cuboid tubular structure, and slot bottom is tetragonous wimble structure, convenient in rhone
Water along slot bottom crest line by and pass through slot bottom through-hole discharge rhone；Good draining effect can be obtained using the structure
Fruit；In view of the total height of stamping parts has exceeded the once drawing limit of drawing theory, need secondary deep-drawing that could complete；And rhone
Bottom is the cone-shaped with crest line, and relative to traditional drawing part, there are one for drawing sequence calculating and original blank auger Spread plane dimension
Determine difficulty；Rhone is divided into two parts by the present invention：Regular cuboid+irregular bullet；The former is according to punching press drawing meter
Process is calculated, for drawing, the latter's once drawing and forming ensure that the accuracy of drawing twice；Stamping die using the present invention and
Sheet Metal Forming Technology simplifies technology difficulty, has saved production cost, improves production efficiency.
Claims (10)
1. a kind of rhone, it is characterised in that：Including draining slot shell and straight-arm；The draining slot shell includes groove sidewall and slot
Bottom is connected as a single entity between the groove sidewall bottom and slot bottom by transition arc, the slot bottom be tetragonous wimble structure, the tetragonous
The vertex of wimble structure is located at the lower section of groove sidewall bottom, and the slot bottom offers through-hole；The straight-arm is set at the top of groove sidewall.
2. rhone according to claim 1, it is characterised in that：The groove sidewall is cuboid tubular structure；The mistake
The inside radius for crossing circular arc is 10mm, outer radius 12mm；The through-hole is set on the vertex of tetragonous wimble structure；The straight-arm is high
6mm。
3. a kind of stamping die of rhone, it is characterised in that：Including pre- cupping tool, blanking and punching mold and whole Drawing Die
Tool；The pre- cupping tool includes pre- drawing punch-pin and pre- drawing cavity plate, is offered on the pre- drawing cavity plate convex with pre- drawing
The matched pre- drawing die cavity of mould；The blanking and punching mold includes punch, punching concave die, blanking die and blanking punch, institute
It states punch and the punching concave die below punch matches, the punching concave die is set between blanking die and blanking punch,
The blanking die and blanking punch match；The end cupping tool includes whole drawing punch-pin and whole drawing cavity plate, the end
It is offered on drawing cavity plate and the matched whole drawing die cavity of whole drawing punch-pin.
4. the stamping die of rhone according to claim 3, it is characterised in that：The pre- drawing punch-pin and pre- Drawing Die
The cross section of chamber is rectangle, and the bottom of the pre- drawing punch-pin and pre- drawing die cavity is fillet, the pre- drawing punch-pin bottom
Portion's radius of corner is 8~10mm, and the pre- drawing male bottom radius of corner is less than pre- drawing mold cavity bottoms radius of corner.
5. the stamping die of rhone according to claim 4, it is characterised in that：The end drawing punch-pin and whole Drawing Die
The bottom of chamber is tetragonous wimble structure, and the height of the end drawing die cavity is more than the height of pre- drawing die cavity.
6. the stamping die of rhone according to claim 5, it is characterised in that：The pre- drawing punch-pin is equipped with and is used for
Compress the elastic material plate of blank to be processed.
7. the stamping die of rhone according to claim 6, it is characterised in that：The blanking and punching mold, which further includes, to be fallen
Expect holding pad and elastic die pad, the blanking holding pad and elastic die pad are respectively arranged on the both sides up and down of punching concave die.
8. carry out rhone Sheet Metal Forming Technology using the stamping die of any rhone of claim 3 ~ 7, it is characterised in that：
Include the following steps,
（1）Blanking：According to the shape and size of metal plate punching part blank extension theoretical calculation blank, sheared according to result of calculation
To shear；
Pre- drawing：The shear is set on pre- drawing cavity plate；Punching machine downlink is compressed shear with the elastic material plate；Institute
It states pre- drawing punch-pin to be pressed into part shear in the pre- drawing die cavity of pre- drawing cavity plate, forms flanged flat pre- drawing part；
（3）Blanking, punching：It is located in punching concave die after the flat pre- drawing part is overturn 180 °；The blanking holding pad and
Elastic die pad compresses flat pre- drawing part, the blanking die and blanking punch to the ribbed portion of flat pre- drawing part into
Row blanking forms flanged flange drawing part；The punch and punching concave die are punched out the bottom surface of flange drawing part, obtain
To punching flange prestretching depth part；
（4）Whole drawing：It is set on after the punching flange prestretching depth part is overturn 180 ° in whole drawing cavity plate；Whole drawing punch-pin will rush
The whole Drawing Die intracavitary of the whole drawing cavity plate of hole flange pre- drawing part press-in is by the flange drawing into straight wall.
9. rhone Sheet Metal Forming Technology according to claim 8, it is characterised in that：The shear is aluminium sheet；The shear
Size compares step（1）Calculate the big 5~10mm of size of blank.
10. rhone Sheet Metal Forming Technology according to claim 9, it is characterised in that：The drawing of the flat pre- drawing part is high
Degree is higher 3~5mm than final products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810135445.9A CN108180691A (en) | 2018-02-09 | 2018-02-09 | A kind of rhone and its stamping die and Sheet Metal Forming Technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810135445.9A CN108180691A (en) | 2018-02-09 | 2018-02-09 | A kind of rhone and its stamping die and Sheet Metal Forming Technology |
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|---|---|
| CN108180691A true CN108180691A (en) | 2018-06-19 |
Family
ID=62552668
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