CN114011964B - Automatic core-expanding flanging die - Google Patents
Automatic core-expanding flanging die Download PDFInfo
- Publication number
- CN114011964B CN114011964B CN202111170011.0A CN202111170011A CN114011964B CN 114011964 B CN114011964 B CN 114011964B CN 202111170011 A CN202111170011 A CN 202111170011A CN 114011964 B CN114011964 B CN 114011964B
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- die
- connecting plate
- expanding
- jackets
- diameter
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- 229920001971 elastomer Polymers 0.000 claims abstract description 13
- 239000000806 elastomer Substances 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Automatic core-expanding flanging die. Relates to the technical field of dies. Reasonable structure, convenient assembly and effective improvement of production efficiency. The inner mold comprises an inner mold inner sleeve and four inner mold outer sleeves, wherein the inner mold inner sleeve comprises a vertical part and a conical part, the four inner mold outer sleeves are movably arranged on the outer wall of the conical part, the maximum outer diameter of a cone formed by the four inner mold outer sleeves is larger than the inner diameter of the original hole, the minimum outer diameter of a cone formed by the four inner mold outer sleeves is smaller than the inner diameter of the original hole, and the maximum outer diameter of the conical part is smaller than the inner diameter of the original hole; any one of the outer walls of the inner die jackets is provided with at least two through grooves, a plurality of through grooves on four inner die jackets form at least two annular grooves which are arranged at intervals along the vertical direction, an elastomer is arranged in each annular groove, the elastomer constrains the four inner die jackets, the bottom of each inner die jacket is provided with an inclined plane, and the inclined planes are abutted against the top surface of a workpiece.
Description
Technical Field
The invention relates to the technical field of dies, in particular to an automatic core-expanding flanging die.
Background
On automatic production line, need carry out the turn-ups to the hole on the panel, in prior art, generally adopt the turn-ups mould to carry out tensile, turn-ups, consider the needs of turn-ups, the aperture of original hole must be less than the centre form external diameter of turn-ups mould, under such condition, just need stretch into the below of original hole with the assembly point of centre form earlier, the back of rethread manual work entering material, the installation of centre form is carried out to the below of original hole promptly, to small-size mould, the assembly of centre form can be accomplished to the back one, but need the assembly of manyly cooperation just can realize the centre form to large-scale mould, the operation degree of difficulty has been increased, moreover, need assemble the centre form of different external diameters to the original hole of different apertures, continuity and the production efficiency of production have been reduced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the automatic core-expanding flanging die which has the advantages of reasonable structure, high assembly speed and capability of adapting to different technological parameters after one-time assembly and effectively improving the production efficiency.
The invention is realized by adopting the following technical scheme: the automatic core-expanding flanging die comprises an outer die and an inner die, wherein a support stretching upwards is arranged at the top of the outer die, a hydraulic cylinder is fixedly arranged on the support, the inner die is positioned below the hydraulic cylinder, a workpiece is arranged below the outer die, an original hole is formed in the center of the workpiece, the hydraulic cylinder drives the inner die to do linear reciprocating motion in the vertical direction, the inner die comprises an inner die inner sleeve and four inner die outer sleeves, the inner die inner sleeve comprises a vertical part and a conical part, the top of the conical part is fixedly connected with the inner edge of the bottom of the vertical part, the four inner die outer sleeves are movably arranged on the outer wall of the conical part, the maximum outer diameter of a cone formed by the four inner die outer sleeves is larger than the inner diameter of the original hole, the minimum outer diameter of a cone formed by the four inner die outer sleeves is smaller than the inner diameter of the original hole, and the maximum outer diameter of the conical part is smaller than the inner diameter of the original hole;
Any one of the outer walls of the inner die jackets is provided with at least two through grooves, a plurality of through grooves on four inner die jackets form at least two annular grooves which are arranged at intervals along the vertical direction, an elastomer is arranged in each annular groove, the elastomer constrains the four inner die jackets, the bottom of each inner die jacket is provided with an inclined plane, and the inclined planes are abutted against the top surface of a workpiece.
The hydraulic cylinder is characterized in that a first connecting plate is arranged on the support and used for connecting the support with the hydraulic cylinder, a second connecting plate is arranged on a piston rod of the hydraulic cylinder, a movable frame is arranged on the second connecting plate and used for connecting the second connecting plate with the inner die.
The first connecting plate is symmetrically provided with a pair of through holes, and the movable frame is arranged in the through holes in a penetrating mode and moves up and down on the inner side of the support.
The bottom outer fringe of vertical portion is circular interval and is equipped with a plurality of storage tanks, be equipped with first spring in the storage tank, the one end of first spring with the tank bottom fixed connection of storage tank, the other end of first spring with the top fixed connection of centre form overcoat.
The radial section of the annular groove is in a convex shape with a large inner side and a small outer side, and the elastic body is adaptively arranged on the inner side of the annular groove.
The elastomer is a rubber ring.
The elastic body is a second spring connected end to end.
The outer die is connected and fastened with the bracket, the bracket is connected with the first connecting plate, the first connecting plate is connected with the hydraulic cylinder, the piston rod of the hydraulic cylinder is connected with the second connecting plate, the second connecting plate is connected with the movable frame, and the movable frame is connected and fastened with the inner die through bolts.
Compared with the prior art, the four inner die jackets are restrained through the elastic body, and the outer diameter of the whole inner die jacket is changed through the movement of the inner die jackets on the outer wall of the conical part, so that the inner die jackets can be assembled above a workpiece, the assembly speed is improved, the assembly difficulty is reduced, and the machining efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
In the figure: 1. an outer mold; 2. a bracket; 3. a hydraulic cylinder; 4. a workpiece; 51. an inner mold sleeve; 511. a vertical portion; 512. a tapered portion; 52. an inner mold jacket; 520. an inclined plane; 6. an annular groove; 7. a first connection plate; 70. perforating; 8. a second connecting plate; 9. a moving rack; 10. a first spring; 11. an elastomer; 12. a bolt; 13. and a limiting plate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
As shown in fig. 1, the automatic core-expanding flanging die comprises an outer die 1 and an inner die, wherein a bracket 2 stretching upwards is arranged at the top of the outer die 1, a hydraulic cylinder 3 is fixedly arranged on the bracket 2, the inner die is positioned below the hydraulic cylinder 3, a workpiece 4 is arranged below the outer die 1, an original hole is arranged in the center of the workpiece 4, the hydraulic cylinder 3 drives the inner die to do straight reciprocating motion in the vertical direction, the inner die comprises an inner die sleeve 51 and four outer die sleeves 52, the inner die sleeve 51 comprises a vertical part 511 and a conical part 512, the top of the conical part 512 is fixedly connected with the inner edge at the bottom of the vertical part 511, the four outer die sleeves 52 are movably arranged on the outer wall of the conical part 512, the maximum outer diameter of a cone formed by the four outer die sleeves 52 is larger than the inner diameter of the original hole, the minimum outer diameter of a cone formed by the four outer die sleeves 52 is smaller than the inner diameter of the original hole, and the maximum outer diameter of the cone formed by the conical part 512 is smaller than the inner diameter of the original hole; the bottom of the conical part 512 is also provided with a limiting plate 13, the inner mold outer sleeve 52 is positioned above the limiting plate 13, the limiting plate 13 limits the lower position of the inner mold outer sleeve 52, and the vertical part 511 limits the upper position of the inner mold outer sleeve 52;
At least two through grooves are formed in the outer wall of any one of the inner die jackets 52, at least two annular grooves 6 are formed in the plurality of through grooves in the four inner die jackets 52 at intervals along the vertical direction, an elastic body 11 is arranged in each annular groove 6, the elastic body 11 is used for restraining the four inner die jackets 52, an inclined surface 520 is arranged at the bottom of each inner die jacket, and the inclined surface 520 is abutted against the top surface of the workpiece 4. When the piston rod of the hydraulic cylinder 3 is in an extension state, the second connecting plate 8 and the inner die are in a high position, so that the inner die is positioned above the workpiece 4, and a large space is reserved between the inner die and the workpiece 4, thereby being convenient for a worker or a manipulator to quickly assemble the inner die outer sleeve 52 on the outer wall of the inner die inner sleeve 51; under the constraint of the elastic body 11, the four inner die jackets 52 form a conical whole, when the inner die jackets 52 are positioned at the upper ends of the conical parts 512, the inner die jackets 52 are tightly attached, when the hydraulic cylinder 3 acts and the inner die descends, the inclined planes 520 at the bottoms of the inner die jackets are in contact with the workpiece 4, so that the inner die jackets move upwards along the outer walls of the conical parts 512, due to the shrinkage effect of the elastic body 11, the outer diameter of the whole inner die jackets 52 is reduced, when the upper surfaces of the inner die jackets 52 contact the bottoms of the inner die jackets 51, the outer diameter of the inner die jackets 52 is smaller than the inner diameter of the original holes of the workpiece 4, in this way, the whole inner die moves to the lower side of the workpiece 4 under the action of gravity, the inner die jackets 52 move downwards and reset, at the moment, the piston rods of the hydraulic cylinder 3 extend out, so that the whole inner die moves upwards, at the moment, interference is generated between the inner die jackets 52 and the original holes, and the outer diameter of the inner die jackets 52 is gradually increased from the moving direction of the inner die, so that the original holes are supported by the inner die jackets 52, and the workpiece 4 is compressed and fixed by the outer die 1 until the inner die jackets completely extend, the flanging is realized, the hole diameter is reasonably structured, the assembly is completed, the assembly is simple, the assembly is finished, the hole diameter is increased by the original hole diameter is not is gradually, and the hole diameter is not is increased, and the original hole diameter is gradually is the hole diameter is gradually is increased.
Be equipped with first connecting plate 7 on the support 2, first connecting plate 7 is used for connecting support 2 and pneumatic cylinder 3, be equipped with second connecting plate 8 on the piston rod of pneumatic cylinder 3, be equipped with on the second connecting plate 8 and remove frame 9, it is used for connecting second connecting plate 8 and centre form to remove frame 9. In this way, the action of the hydraulic cylinder 3 is ensured, the up-and-down movement of the inner mold can be realized, and the assembly of the inner mold jacket 52 is ensured to be more convenient and rapid.
The first connecting plate 7 is symmetrically provided with a pair of through holes 70, and the moving frame 9 is inserted into the through holes 70 and moves up and down on the inner side of the bracket 2. And a movable frame 9 is arranged to realize the linkage of the piston rod and the internal mold.
The bottom outer fringe of vertical portion 511 is circular interval and is equipped with a plurality of storage tanks, be equipped with first spring 10 in the storage tank, the one end of first spring 10 with the tank bottom fixed connection of storage tank, the other end of first spring 10 with the top fixed connection of centre form overcoat 52. During the upward movement of the inner die jacket 52, the first spring 10 is in a compressed state, and when the inner die is positioned below the workpiece 4, the first spring 10 releases energy to rebound, ensuring that the inner die jacket 52 can be restored below the tapered portion 512.
The radial section of the annular groove 6 is in a convex shape with a large inner side and a small outer side, and the elastic body 11 is adaptively arranged on the inner side of the annular groove 6. The annular groove 6 can play a limiting role, and ensure that the elastic body 11 can reliably restrain the four inner die jackets 52.
The elastic body 11 is a rubber ring. The rubber ring has good elasticity and can provide enough constraint elastic force.
The elastic body 11 is a second spring connected end to end. The second spring has good durability.
The outer die 1 is connected and fastened with the bracket 2, the bracket 2 is connected with the first connecting plate 7, the first connecting plate 7 is connected with the hydraulic cylinder 3, the piston rod of the hydraulic cylinder 3 is connected with the second connecting plate 8, the second connecting plate 8 is connected with the movable frame 9, and the movable frame 9 is connected and fastened with the inner die through bolts 12.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (8)
1. The utility model provides an automatic core flanging die expands, includes external mold and centre form, the top of external mold is equipped with the support that upwards stretches, the fixed pneumatic cylinder that is equipped with on the support, the centre form is located the below of pneumatic cylinder, the below of external mold is located to the work piece, and the center of work piece is equipped with original hole, the pneumatic cylinder drive the rectilinear reciprocation of vertical direction is done to the centre form, its characterized in that: the inner mold comprises an inner mold inner sleeve and four inner mold outer sleeves, the inner mold inner sleeve comprises a vertical part and a conical part, the top of the conical part is fixedly connected with the inner edge of the bottom of the vertical part, the four inner mold outer sleeves are movably arranged on the outer wall of the conical part, the maximum outer diameter of a cone formed by the four inner mold outer sleeves is larger than the inner diameter of the original hole, the minimum outer diameter of a cone formed by the four inner mold outer sleeves is smaller than the inner diameter of the original hole, and the maximum outer diameter of the conical part is smaller than the inner diameter of the original hole;
Any one of the outer walls of the inner die jackets is provided with at least two through grooves, a plurality of through grooves on four inner die jackets form at least two annular grooves which are arranged at intervals along the vertical direction, an elastomer is arranged in each annular groove, the elastomer constrains the four inner die jackets, the bottom of each inner die jacket is provided with an inclined plane, and the inclined planes are abutted against the top surface of a workpiece.
2. The automatic core-expanding flanging die as claimed in claim 1, wherein: the hydraulic cylinder is characterized in that a first connecting plate is arranged on the support and used for connecting the support with the hydraulic cylinder, a second connecting plate is arranged on a piston rod of the hydraulic cylinder, a movable frame is arranged on the second connecting plate and used for connecting the second connecting plate with the inner die.
3. The automatic core-expanding flanging die as claimed in claim 2, wherein: the first connecting plate is symmetrically provided with a pair of through holes, and the movable frame is arranged in the through holes in a penetrating mode and moves up and down on the inner side of the support.
4. The automatic core-expanding flanging die as claimed in claim 1, wherein: the bottom outer fringe of vertical portion is circular interval and is equipped with a plurality of storage tanks, be equipped with first spring in the storage tank, the one end of first spring with the tank bottom fixed connection of storage tank, the other end of first spring with the top fixed connection of centre form overcoat.
5. The automatic core-expanding flanging die as claimed in claim 1, wherein: the radial section of the annular groove is in a convex shape with a large inner side and a small outer side, and the elastic body is adaptively arranged on the inner side of the annular groove.
6. The automatic expanding core flanging die of claim 5, wherein: the elastomer is a rubber ring.
7. The automatic expanding core flanging die of claim 5, wherein: the elastic body is a second spring connected end to end.
8. The automatic core-expanding flanging die as claimed in claim 1, wherein: the outer die is connected and fastened with the bracket, the bracket is connected with the first connecting plate, the first connecting plate is connected with the hydraulic cylinder, the piston rod of the hydraulic cylinder is connected with the second connecting plate, the second connecting plate is connected with the movable frame, and the movable frame is connected and fastened with the inner die through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111170011.0A CN114011964B (en) | 2021-10-08 | 2021-10-08 | Automatic core-expanding flanging die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111170011.0A CN114011964B (en) | 2021-10-08 | 2021-10-08 | Automatic core-expanding flanging die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114011964A CN114011964A (en) | 2022-02-08 |
| CN114011964B true CN114011964B (en) | 2024-06-18 |
Family
ID=80055404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111170011.0A Active CN114011964B (en) | 2021-10-08 | 2021-10-08 | Automatic core-expanding flanging die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114011964B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106807850A (en) * | 2017-03-20 | 2017-06-09 | 山东胜宁电器有限公司 | Container finish press fit device and equipment |
| CN108817169A (en) * | 2018-07-27 | 2018-11-16 | 芜湖文达精密机械科技有限公司 | A kind of plate hole flanging equipment for capableing of single-sided operation |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB860625A (en) * | 1959-01-01 | 1961-02-08 | Leer Ind Ltd Van | Sheet metal containers and a method of and apparatus for the manufacture thereof |
| AU412466B2 (en) * | 1966-10-18 | 1971-04-21 | Davies Fred | Improvements in and relating to pipefitting tools |
| GB1204736A (en) * | 1968-05-14 | 1970-09-09 | Leer U K Ltd Van | Method of and apparatus for reducing asymmetrical stresses in a generally cylindrical sheet metal side wall of a container of such a side wall |
| FR95098E (en) * | 1968-06-25 | 1970-06-19 | Granger Maurice | Device for forming collars on tubes or plates, from an opening previously made. |
| CH585593A5 (en) * | 1974-11-14 | 1977-03-15 | Km Engineering Ag | |
| SU1338926A1 (en) * | 1986-02-26 | 1987-09-23 | Дрогобычское Проектно-Конструкторское И Технологическое Бюро Всесоюзного Промышленного Объединения "Союзгазмашремонт" | Die for piercing and flanging holes |
| JPH11319990A (en) * | 1998-05-18 | 1999-11-24 | Toyota Motor Corp | Press die for combined working |
| CN202963288U (en) * | 2012-11-30 | 2013-06-05 | 台山市万通罐机工业有限公司 | Expansion cone curling combination machine |
| CN105598241B (en) * | 2016-01-22 | 2017-10-03 | 山东水泊焊割设备制造有限公司 | Orifice flanging machine |
| CN105598705B (en) * | 2016-03-17 | 2017-12-15 | 中国科学院金属研究所 | A kind of apparatus and method in turned-out straight flange hole processed |
| CN107008808B (en) * | 2017-01-24 | 2018-09-28 | 宁波菲力克汽配有限公司 | Nozzle processing unit (plant) and nozzle processing method |
| JP2020049515A (en) * | 2018-09-27 | 2020-04-02 | 株式会社アマダホールディングス | Upper die in punch press and method of pressing |
| CN211191655U (en) * | 2019-10-12 | 2020-08-07 | 沙文曼(无锡)智能装备有限公司 | Internal mold structure of pipe end forming machine |
-
2021
- 2021-10-08 CN CN202111170011.0A patent/CN114011964B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106807850A (en) * | 2017-03-20 | 2017-06-09 | 山东胜宁电器有限公司 | Container finish press fit device and equipment |
| CN108817169A (en) * | 2018-07-27 | 2018-11-16 | 芜湖文达精密机械科技有限公司 | A kind of plate hole flanging equipment for capableing of single-sided operation |
Also Published As
| Publication number | Publication date |
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| CN114011964A (en) | 2022-02-08 |
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