CN108580683B - Stamping die for upper and lower side edges of electric cooker shell - Google Patents
Stamping die for upper and lower side edges of electric cooker shell Download PDFInfo
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- CN108580683B CN108580683B CN201810406617.1A CN201810406617A CN108580683B CN 108580683 B CN108580683 B CN 108580683B CN 201810406617 A CN201810406617 A CN 201810406617A CN 108580683 B CN108580683 B CN 108580683B
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- electric cooker
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- 230000005540 biological transmission Effects 0.000 claims description 18
- 241000209094 Oryza Species 0.000 claims description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims description 5
- 235000009566 rice Nutrition 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009957 hemming Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- 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
-
- 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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
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- 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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
- B21D51/22—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like pots, e.g. for cooking
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Food-Manufacturing Devices (AREA)
Abstract
The invention relates to a stamping die for upper and lower side edges of an electric cooker shell. The device comprises an upper die, a lower die, an upper flanging seat, a bulging mechanism, a bulging driving mechanism and a lower jacking flanging mechanism. The expansion mechanism comprises an inner expansion assembly and an outer expansion assembly, and the outer expansion assembly is positioned at the periphery of the inner expansion assembly. The invention respectively drives the inner expansion assembly and the outer expansion assembly to clamp the side wall of the electric cooker shell inside and outside through the central plug post and the outer plug post of the expansion driving mechanism, the upper die continues to descend, the upper flanging annular groove of the upper flanging seat lowers the upper end of the side wall of the electric cooker shell and flanging, meanwhile, the central plug post also drives the upper flanging seat to ascend, and the upper flanging annular groove of the upper flanging seat also simultaneously pushes the lower end of the side wall of the electric cooker shell and flanging, so that the invention can simultaneously finish the flanging work of the upper end and the lower end of the side wall of the electric cooker shell in one-time stamping production.
Description
Technical Field
The invention relates to flanging die equipment, in particular to a stamping die for upper and lower flanging of an electric cooker shell.
Background
At present, the upper end and the lower end of a metal shell product of an electric cooker have the hemming process requirement, the traditional method is that the riveted shell product is placed in a hemming fixture, and then the end of the product is curled into an arc shape through a hemming tool on a rotary lathe or a drilling machine, but the method can only turn one end at a time, and the hemming fixture needs to be manually operated to enter and exit, so that the labor intensity of operators is high, and the efficiency is low.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the upper and lower flanging stamping die for the electric cooker shell, which has the advantages of simple and reasonable structure, capability of stamping and flanging the side wall of the electric cooker shell up and down at one time, high production efficiency and high flanging quality.
The purpose of the invention is realized in the following way:
a stamping die for upper and lower side flanging of an electric cooker shell comprises an upper die, a lower die, an upper flanging seat, a bulging mechanism, a bulging driving mechanism and a lower jacking flanging mechanism.
The upper flanging seat is arranged on the upper template of the upper die, and the bottom surface of the upper flanging seat is provided with an upper flanging annular groove for downwards flanging the upper end part of the side wall of the electric cooker shell, so that the upper end part of the side wall of the electric cooker shell is flanged.
The expansion mechanism is arranged on the lower die and used for expanding the inside and outside of the side wall of the electric cooker shell, and comprises an inner expansion assembly and an outer expansion assembly, wherein the outer expansion assembly is positioned on the periphery of the inner expansion assembly, and the outer expansion assembly is arranged away from the inner expansion assembly to form a clamping space.
The expansion driving mechanism is arranged on the upper die plate of the upper die and used for driving the inner expansion assembly to move outwards for expanding and simultaneously driving the outer expansion assembly to move inwards for expanding and driving the lower jacking flanging mechanism to jack the lower end part of the side wall of the shell of the electric rice cooker upwards.
The lower jacking flanging mechanism is arranged on the lower die and is used for jacking up the lower end part of the side wall of the electric cooker shell, so that the lower end part of the side wall of the electric cooker shell is flanged.
The aim of the invention can be also solved by adopting the following technical measures:
the expansion driving mechanism comprises a central inserting column and an outer inserting column, wherein the central inserting column and the outer inserting column are vertically arranged on the upper template, and the upper flanging seat is positioned between the central inserting column and the outer inserting column.
The inner expansion assembly comprises a plurality of inner expansion sliding blocks, the inner expansion sliding blocks are annularly arranged on the lower die, a central driving expansion channel is formed by the inner wall surfaces of the inner expansion sliding blocks in a surrounding mode, the inner expansion sliding blocks are radially arranged on the lower die in a sliding mode in the center, and a first reset spring is arranged between the inner expansion sliding blocks and the lower die. And when the upper die and the lower die are opened, the elastic force of the first reset spring drives the inner expanding slide block to return to the original position.
The bottom of the center inserted column is provided with a first driving inclined plane, and the inner expanding slide blocks are provided with first driven inclined planes which are in transmission fit with the first driving inclined planes so as to drive the inner expanding slide blocks to be separated from each other. When the inner expansion sliding blocks are folded, the outer wall surfaces of the inner expansion sliding blocks enclose a circular outer curved surface.
The outer shape subassembly that rises includes two piece at least outer shape sliders that rise, and outer shape slider horizontal slip sets up on the bed die, the outer shape slider that rises of polylith is annular setting on the bed die, is equipped with second reset spring between outer shape slider and the bed die, the bottom of outer plug-in post is equipped with the second drive inclined plane, be equipped with on the outer shape slider with the driven inclined plane of second drive inclined plane transmission complex second to the outer shape slider that rises folds or folds towards the center of drive. When the inner expansion slide blocks are folded, the inner wall surfaces of the outer expansion slide blocks enclose a circular inner curved surface. The shape and the size of the outer curved surface and the inner curved surface are matched with those of the side wall of the electric cooker shell. And when the upper die and the lower die are opened, the elastic force of the second reset spring drives the external expansion sliding block to return to the original position.
The outer shape slider that rises corresponds outward and inserts the post and be equipped with the hole of stepping down, the upper end of hole of stepping down is equipped with the driven inclined plane of second.
The lower jacking flanging mechanism comprises a central lifting block, a plurality of horizontal lifting blocks, a plurality of outer lifting blocks and a lower flanging seat, wherein the lower flanging seat is arranged below the inner expanding assembly, the central lifting block is arranged on the lower die in a vertical sliding mode and located below the central driving expanding channel, the outer lifting blocks are arranged on the lower die in a vertical sliding mode, the horizontal lifting blocks are arranged between the central lifting blocks and the outer lifting blocks, the central lifting blocks are in inner end inclined plane transmission fit with the horizontal lifting blocks, the outer ends of the horizontal lifting blocks are in inclined plane transmission fit with the outer lifting blocks, a third reset spring is arranged between the outer ends of the horizontal lifting blocks and the lower die, the plurality of horizontal lifting blocks are annularly arranged on the periphery of the central lifting blocks by taking the central lifting blocks as the center, the plurality of horizontal lifting blocks are radially arranged on the periphery of the horizontal lifting blocks by taking the central lifting blocks as the center, the lower flanging seat is arranged on the outer lifting blocks, and the upper surface of the lower flanging seat is provided with a circle of annular groove. And when the upper die and the lower die are opened, the elastic force of the third return spring drives the horizontal moving block to return to the original position.
The upper flanging seat and the lower flanging seat are in annular shapes.
When the outer expansion slide blocks are folded and the inner expansion slide blocks are folded, the shape surrounded by the inner wall surfaces of the outer expansion slide blocks is matched with the shape surrounded by the outer wall surfaces of the inner expansion slide blocks.
The periphery of the center lifting block is provided with at least one third driving inclined plane, the inner end of the horizontal moving block is provided with a third driven inclined plane, the third driving inclined plane is in transmission fit with the third driven inclined plane, the outer end of the horizontal moving block is provided with a fourth driven inclined plane, and the lower end of the outer lifting block is provided with a fifth driven inclined plane which is in transmission fit with the fifth driven inclined plane.
The two opposite side walls of the two adjacent inner expansion sliding blocks are respectively provided with a first inclined sliding groove, an auxiliary expansion sliding block is connected between the two adjacent inner expansion sliding blocks and is in a dovetail shape, the auxiliary expansion sliding block comprises a central auxiliary expansion head and wing arms connected to two sides of the central auxiliary expansion head, the two wing arms of the auxiliary expansion sliding blocks are respectively arranged on the first inclined sliding grooves of the two inner expansion sliding blocks in a sliding manner, and the central auxiliary expansion head is positioned between the two inner expansion sliding blocks and is close to the outer wall surfaces of the two inner expansion sliding blocks. When the inner expansion sliding blocks are separated from each other, the auxiliary expansion sliding blocks are always connected with the two adjacent inner expansion sliding blocks, when the inner expansion sliding blocks move around, the auxiliary expansion sliding blocks also move around, the auxiliary expansion sliding blocks always keep sealing gaps between the two adjacent inner expansion sliding blocks, the center auxiliary expansion heads of the auxiliary expansion sliding blocks always press against the inner wall of the electric cooker shell, and the gaps between the two adjacent inner expansion sliding blocks are avoided to be caused, and when the inner expansion sliding blocks expand, the electric cooker shell at the gap positions is deformed.
The inner expansion slide block is provided with a guide chute along the sliding direction of the inner expansion slide block, and the guide chute is used for guiding the inner expansion slide block to slide.
The beneficial effects of the invention are as follows:
the invention drives the inner expansion assembly and the outer expansion assembly to clamp the side wall of the electric cooker shell inside and outside respectively through the center plug post and the outer plug post of the expansion driving mechanism, the upper die continues to descend, the upper flanging annular groove of the upper flanging seat is used for flanging the upper end of the side wall of the electric cooker shell, meanwhile, the center plug post also drives the upper flanging seat to ascend, and the upper flanging annular groove of the upper flanging seat is used for simultaneously propping the lower end of the side wall of the electric cooker shell and flanging, so that the invention can simultaneously finish the flanging work of the upper end and the lower end of the side wall of the electric cooker shell in one-time stamping production.
In addition, the invention has convenient operation and high production efficiency, two ends are simultaneously molded in the die together at a time, workers do not need to operate frequently, and the problem of scratching and damaging the shell of the electric cooker when clamping the shell of the electric cooker is also reduced.
And (III) when the electric cooker shell is stamped and turned, the inner and outer curved surfaces of the circular outer curved surfaces surrounded by the inner expanding slide blocks and the circular inner curved surfaces surrounded by the outer expanding slide blocks clamp the electric cooker shell, so that the electric cooker shell is prevented from being unstable, deformed, distorted and the like when being curled.
Drawings
Fig. 1 is a schematic structural view of a stamping die for upper and lower side edges of an electric rice cooker shell.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
Fig. 3 is an enlarged schematic view of the structure at B in fig. 1.
Fig. 4 is a schematic structural view of the upturned seat of the present invention.
Fig. 5 is a schematic cross-sectional view of the structure at A-A in fig. 4.
Fig. 6 is a schematic structural view of the down-flanging seat of the present invention.
Fig. 7 is a schematic cross-sectional view of the structure at B-B in fig. 6.
Fig. 8 is a schematic view of the structure of the inner expansion assembly of the present invention. (the solid double arrow in FIG. 8 is the direction in which the inner expanding slide closes or separates).
FIG. 9 is a schematic view of the internal expanding slide block structure of the present invention.
Fig. 10 is a schematic structural view of the outer expansion assembly of the present invention. (the dashed double arrow in FIG. 10 is the direction in which the outer tension slider closes or separates).
Fig. 11 is a schematic structural view of the central elevating slider of the present invention.
Description of the embodiments
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1 to 11, a stamping die for upper and lower side flanging of an electric cooker shell comprises an upper die 1, a lower die 2, an upper flanging seat 6, a bulging mechanism 3, a bulging driving mechanism 4 and a lower jacking flanging mechanism 5.
The upper flanging seat 6 is arranged on the upper template of the upper die 1, and the bottom surface of the upper flanging seat 6 is provided with an upper flanging annular groove 61 for downwards flanging the upper end part of the side wall of the electric cooker shell, so that the upper end part of the side wall of the electric cooker shell is flanged.
The expansion mechanism 3 is arranged on the lower die 2 and is used for expanding the inside and the outside of the side wall of the electric cooker shell, and comprises an inner expansion assembly 31 and an outer expansion assembly 32, wherein the outer expansion assembly 32 is positioned on the periphery of the inner expansion assembly 31, and the outer expansion assembly 32 and the inner expansion assembly 31 are arranged separately to form a clamping space 331.
The expansion driving mechanism 4 is arranged on the upper template 11 of the upper die 1 and is used for driving the inner expansion assembly 31 to move outwards for expansion and simultaneously driving the outer expansion assembly 32 to move inwards for expansion and is used for driving the lower jacking flanging mechanism 5 to jack the lower end part of the side wall of the shell of the electric rice cooker upwards.
The lower jacking flanging mechanism 5 is arranged on the lower die 2 and is used for jacking up the lower end part of the side wall of the electric cooker shell, so that the lower end part of the side wall of the electric cooker shell is flanged.
The aim of the invention can be also solved by adopting the following technical measures:
the expansion driving mechanism 4 comprises a central inserting column 41 and an outer inserting column 42, the central inserting column 41 and the outer inserting column 42 are vertically arranged on the upper template 11, and the upper flanging seat 6 is positioned between the central inserting column 41 and the outer inserting column 42.
The inner expansion assembly 31 comprises a plurality of inner expansion sliding blocks 311, the inner expansion sliding blocks 311 are annularly arranged on the lower die 2, a central driving expansion channel 312 is formed by surrounding the inner wall surfaces of the inner expansion sliding blocks 311, the inner expansion sliding blocks 311 are radially arranged on the lower die 2 in a sliding manner in the center, a first reset spring (not shown in the figure) is arranged between the inner expansion sliding blocks 311 and the lower die 2, a first driving inclined surface 411 is arranged at the bottom end of the central inserting column 41, and first driven inclined surfaces 314 in transmission fit with the first driving inclined surfaces are arranged on the inner expansion sliding blocks 311 so as to drive the inner expansion sliding blocks 311 to be separated around. When the inner expansion sliders are folded, the outer wall surfaces of the inner expansion sliders enclose a circular outer curved surface 318.
The outer expansion assembly 32 comprises two outer expansion sliding blocks 321, the outer expansion sliding blocks are horizontally arranged on the lower die in a sliding manner, the plurality of outer expansion sliding blocks 321 are annularly arranged on the lower die 2, a second reset spring (not shown in the figure) is arranged between the outer expansion sliding blocks 321 and the lower die 2, a second driving inclined plane 421 is arranged at the bottom end of the outer insertion column 42, and a second driven inclined plane 323 matched with the second driving inclined plane 421 in an inclined plane transmission manner is arranged on the outer expansion sliding blocks 321 so as to drive the outer expansion sliding blocks 321 to fold or fold towards the center. When the plurality of outer expansion sliding blocks are folded, the inner wall surfaces of the plurality of outer expansion sliding blocks enclose a circular inner curved surface 329. When the outer expansion slide block 321 is folded and when the inner expansion slide blocks 311 are folded, the shape surrounded by the inner wall surfaces of the outer expansion slide blocks 321 is matched with the shape surrounded by the outer wall surfaces of the inner expansion slide blocks 311.
The outer expansion slide block 321 is provided with a driven yielding hole 324 corresponding to the outer plug 42, and the upper end of the driven yielding hole 324 is provided with a second driven inclined plane 323.
The lower jacking flanging mechanism 5 comprises a central lifting block 51, a plurality of horizontal moving blocks 52, a plurality of outer lifting blocks 53 and a lower flanging seat 54, wherein the lower flanging seat 54 is positioned below the inner expanding assembly 31, the central lifting block 51 is arranged on the lower die 2 in a sliding manner and positioned below the central driving expanding channel 312, the outer lifting blocks 53 are arranged on the lower die 2 in a sliding manner, the horizontal moving blocks 52 are positioned between the central lifting blocks 51 and the outer lifting blocks 53, the central lifting blocks 51 are in transmission fit with inner end inclined planes of the horizontal moving blocks 52, the outer ends of the horizontal moving blocks 52 are in transmission fit with the inclined planes of the outer lifting blocks 53, a third reset spring 55 is arranged between the outer ends of the horizontal moving blocks 52 and the lower die 2, the plurality of horizontal moving blocks 52 are annularly arranged on the periphery of the central lifting blocks 51 by taking the central lifting blocks 51 as the center, the plurality of outer lifting blocks 53 are annularly arranged on the periphery of the horizontal moving blocks 52 by taking the central lifting blocks 51 as the center, and the lower flanging seat 54 is arranged on the lower flanging seat 54.
The upper flanging seat 6 and the lower flanging seat 54 are annular.
The center lifting block is in a polygonal table shape, a plurality of third driving inclined planes 511 are arranged on the periphery of the center lifting block, a third driven inclined plane 521 is arranged at the inner end of the horizontal moving block 52, the third driving inclined plane 511 is in transmission fit with the third driven inclined plane 521, a fourth driven inclined plane 522 is arranged at the outer end of the horizontal moving block 52, a fifth driven inclined plane 531 is arranged at the lower end of the outer lifting block 53, and the fourth driven inclined plane 522 is in transmission fit with the fifth driven inclined plane 531.
The opposite side walls of the two adjacent inner expansion sliding blocks 311 are respectively provided with a first inclined sliding groove 373, an auxiliary expansion sliding block 37 is connected between the two adjacent inner expansion sliding blocks 311, the auxiliary expansion sliding block 37 is in a dovetail shape, the auxiliary expansion sliding block 37 comprises a central auxiliary expansion head 371 and wing arms 372 connected to the two sides of the central auxiliary expansion head 371, the two wing arms 372 of the auxiliary expansion sliding block 37 are respectively arranged on the first inclined sliding grooves 373 of the two inner expansion sliding blocks 311 in a sliding way, and the central auxiliary expansion head 371 is positioned between the two inner expansion sliding blocks 311 and is close to the outer wall surfaces of the two inner expansion sliding blocks 311. When the inner expansion slide blocks 311 are separated from each other, the auxiliary expansion slide blocks 37 are always connected with the two adjacent inner expansion slide blocks 311, when the inner expansion slide blocks 311 move around, the auxiliary expansion slide blocks 37 also move around, the auxiliary expansion slide blocks 37 always keep sealing gaps 376 between the two adjacent inner expansion slide blocks 311, the center of the auxiliary expansion slide blocks 37 assist the expansion heads 371 to always press against the inner wall of the electric cooker shell, and the deformation of the electric cooker shell at the gap positions is avoided when the inner expansion slide blocks 311 expand.
The inner expanding slide block 311 is provided with a guiding chute 317 along the sliding direction.
The working principle of the invention is as follows:
when the upper die and the lower die are closed, the central inserting column drives the inner expanding slide blocks to expand outwards to slide, the inner expanding slide blocks cling to the inner molded surface of the side wall 7 of the electric cooker shell, the outer inserting column drives the two outer expanding slide blocks to fold inwards and cling to the outer molded surface of the electric cooker shell, the circular outer curved surface surrounded by the inner expanding slide blocks and the circular inner curved surface surrounded by the outer expanding slide blocks clamp the electric cooker shell inwards and outwards, so that the electric cooker shell is prevented from being deformed and distorted in a destabilizing manner when being rolled. Then the upper die continues to move downwards, the upper flanging annular groove of the upper flanging seat starts to contact the upper end of the side wall 7 of the electric cooker shell and performs flanging operation on the upper end of the side wall 7 of the electric cooker shell, the lower flanging seat pushes down the central lifting slide block through the central inserting column of the upper die, the central lifting slide block descends, then the horizontal moving block 52 is pushed to slide around, the horizontal moving block 52 pushes the outer lifting block 53 to ascend, and accordingly the lower flanging annular groove of the whole lower flanging seat pushes against the lower end of the side wall 7 of the electric cooker shell and performs flanging operation on the upper end of the side wall 7 of the electric cooker shell. The lower jacking flanging mechanism drives the lower rolling block upwards to roll the lower end head of the shell product. The invention completes the flanging work of the upper and lower ends of the side wall 7 of the electric cooker shell simultaneously in one-time stamping production, and the quality, the appearance, the size and the like of the flanging of the side wall of the electric cooker shell are superior to those of the manual rolling of a lathe and a drilling machine because the flanging work of the upper and lower ends of the side wall 7 of the electric cooker shell is carried out simultaneously.
When the upper die and the lower die are opened, all the parts return to the original positions, so that preparation is made for the next flanging operation.
Claims (4)
1. The upper and lower side flanging stamping die of the electric cooker shell is characterized by comprising an upper die and a lower die, and further comprising;
the upper flanging seat is arranged on the upper template of the upper die, and the bottom surface of the upper flanging seat is provided with an upper flanging annular groove for downwards flanging the upper end part of the side wall of the electric cooker shell, so that the upper end part of the side wall of the electric cooker shell is flanged;
the expansion mechanism is arranged on the lower die and used for expanding the inner side wall of the electric cooker shell, and comprises an inner expansion assembly and an outer expansion assembly, wherein the outer expansion assembly is positioned at the periphery of the inner expansion assembly, and the outer expansion assembly and the inner expansion assembly are arranged separately to form a clamping space;
the expansion driving mechanism is arranged on the upper template of the upper die and used for driving the inner expansion assembly to move outwards for expanding and simultaneously driving the outer expansion assembly to move inwards for expanding and driving the lower jacking flanging mechanism to jack the lower end part of the side wall of the shell of the electric rice cooker upwards;
the lower jacking flanging mechanism is arranged on the lower die and is used for jacking the lower end part of the side wall of the electric cooker shell upwards so as to flanging the lower end part of the side wall of the electric cooker shell;
the expansion driving mechanism comprises a central inserting column and an outer inserting column, and the central inserting column and the outer inserting column are vertically arranged on the upper template;
the inner expansion assembly comprises a plurality of inner expansion sliding blocks, the inner wall surfaces of the inner expansion sliding blocks are annularly arranged on a lower die to form a central driving expansion channel, the inner expansion sliding blocks are radially arranged on the lower die in a sliding manner, a first driving inclined surface is arranged at the bottom end of the central inserting column, first driven inclined surfaces in transmission fit with the first driving inclined surfaces are arranged on the inner expansion sliding blocks, and when the inner expansion sliding blocks are folded, the outer wall surfaces of the inner expansion sliding blocks form a circular outer curved surface in a surrounding manner;
the outer expansion assembly comprises at least two outer expansion sliding blocks, the outer expansion sliding blocks are horizontally arranged on the lower die in a sliding manner, the outer expansion sliding blocks are annularly arranged on the lower die, a second driving inclined plane is arranged at the bottom end of the outer insertion column, a second driven inclined plane which is in transmission fit with the second driving inclined plane is arranged on the outer expansion sliding blocks, and when the outer expansion sliding blocks are folded, the inner wall surfaces of the outer expansion sliding blocks enclose a circular inner curved surface;
the outer expansion slide block is provided with a driven abdication hole corresponding to the outer insertion column, and the upper end of the driven abdication hole is provided with the second driven inclined plane;
the lower jacking flanging mechanism comprises a central lifting block, a plurality of horizontal lifting blocks, a plurality of outer lifting blocks and a lower flanging seat, wherein the lower flanging seat is arranged below the inner expanding assembly, the central lifting block is arranged on the lower die in a vertical sliding mode and located below the central driving expanding channel, the outer lifting blocks are arranged on the lower die in a vertical sliding mode, the horizontal lifting blocks are arranged between the central lifting blocks and the outer lifting blocks, the central lifting blocks are in inner end inclined plane transmission fit with the horizontal lifting blocks, the outer ends of the horizontal lifting blocks are in inclined plane transmission fit with the outer lifting blocks, a third reset spring is arranged between the outer ends of the horizontal lifting blocks and the lower die, the plurality of horizontal lifting blocks are annularly arranged on the periphery of the central lifting blocks by taking the central lifting blocks as the center, the plurality of horizontal lifting blocks are radially arranged on the periphery of the horizontal lifting blocks by taking the central lifting blocks as the center, the lower flanging seat is arranged on the outer lifting blocks, and the upper surface of the lower flanging seat is provided with a circle of annular groove.
2. The rice cooker outer case upper and lower side flanging stamping die according to claim 1, wherein the upper flanging seat and the lower flanging seat are annular.
3. The upper and lower side flanging stamping die of the electric cooker shell according to claim 1, wherein at least one third driving inclined plane is arranged on the periphery of the central lifting block, a third driven inclined plane is arranged at the inner end of the horizontal moving block, the third driving inclined plane is in transmission fit with the third driven inclined plane, a fourth driven inclined plane is arranged at the outer end of the horizontal moving block, a fifth driven inclined plane is arranged at the lower end of the outer lifting block, and the fourth driven inclined plane is in transmission fit with the fifth driven inclined plane.
4. The upper and lower side flanging stamping die of the electric cooker shell according to claim 3, wherein the opposite side walls of the two adjacent inner expansion sliding blocks are respectively provided with a first inclined sliding groove, an auxiliary expansion sliding block is connected between the two adjacent inner expansion sliding blocks and is in a dovetail shape, the auxiliary expansion sliding block comprises a central auxiliary expansion head and wing arms connected to two sides of the central auxiliary expansion head, the two wing arms of the auxiliary expansion sliding block are respectively arranged on the first inclined sliding grooves of the two inner expansion sliding blocks in a sliding manner, and the central auxiliary expansion head is positioned between the two inner expansion sliding blocks and is close to the outer wall surfaces of the two inner expansion sliding blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810406617.1A CN108580683B (en) | 2018-04-30 | 2018-04-30 | Stamping die for upper and lower side edges of electric cooker shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810406617.1A CN108580683B (en) | 2018-04-30 | 2018-04-30 | Stamping die for upper and lower side edges of electric cooker shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108580683A CN108580683A (en) | 2018-09-28 |
| CN108580683B true CN108580683B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810406617.1A Active CN108580683B (en) | 2018-04-30 | 2018-04-30 | Stamping die for upper and lower side edges of electric cooker shell |
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| Country | Link |
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| CN (1) | CN108580683B (en) |
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| CN110523878B (en) * | 2019-09-03 | 2020-10-02 | 刘洪森 | Front, left and right simultaneous flanging device of automobile front fender |
| CN110653295A (en) * | 2019-10-18 | 2020-01-07 | 珠海格力精密模具有限公司 | Stamping die and stamping method |
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| CN114082839B (en) * | 2021-11-24 | 2023-12-01 | 江苏希西维轴承有限公司 | Automatic shaping flanging machine for rolled shaft sleeve |
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| CN108580683A (en) | 2018-09-28 |
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