CN112605271A - Mould of drawing dark many circular convex hulls on taking long convex hull product - Google Patents
Mould of drawing dark many circular convex hulls on taking long convex hull product Download PDFInfo
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- CN112605271A CN112605271A CN202011500175.0A CN202011500175A CN112605271A CN 112605271 A CN112605271 A CN 112605271A CN 202011500175 A CN202011500175 A CN 202011500175A CN 112605271 A CN112605271 A CN 112605271A
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- plate
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- die
- fixedly arranged
- convex hull
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- 238000003825 pressing Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000006872 improvement Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 11
- 238000003754 machining Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000004080 punching Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/04—Stamping using rigid devices or tools for dimpling
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- 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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a die for drawing deep multi-circular convex hulls on products with long convex hulls, which comprises an upper die and a lower die, wherein the upper die comprises an upper support (4), an upper base plate (5), a fixed plate (6), a limiting plate (7) and a stripper plate (8) which are sequentially and fixedly arranged at the bottom of the upper support (4), an upper spring (9) is fixedly arranged in the upper support (4), a pre-pressing rod (10) is fixedly arranged at the bottom of the upper spring (9), a plurality of through grooves (12) arranged along the horizontal direction are arranged in a blank holder (11), and a plurality of convex hull concave dies (13) corresponding to the through grooves (12) are fixedly arranged in the limiting plate (7); the lower die comprises a base (14), a lower backing plate (15) and a concave die plate (16) which are fixedly arranged at the top of the base (14) in sequence, a top plate (18) is arranged in the cavity (17) in a sliding mode, and the top plate (18) is arranged under the pre-pressing rod (10). The invention has the beneficial effects that: compact structure, improvement part production efficiency, improvement part processingquality.
Description
Technical Field
The invention relates to the technical field of processing a plurality of circular convex hulls on a long convex hull, in particular to a die for deepening the plurality of circular convex hulls on a product with the long convex hull.
Background
The structure of the product with the long convex hulls is shown in figures 1-2, and the product with the long convex hulls comprises a plate body 1 and the long convex hulls 2 formed on the top of the plate body 1. The process requires that a plurality of round convex hulls 3 arranged at intervals are formed on the basis of the long convex hull 2, and the formed finished parts are shown in figures 3-4. The existing molding mode mainly adopts die machining, during processing, be fixed in the cavity board of mould with plate body 1 on, the top surface of the long convex closure 2 of terrace die extrusion through the mould again, after the cavity cooperation of terrace die and cavity board, can form out first circular convex closure 3 on long convex closure 2, remove plate body 1 afterwards, make the top surface of long convex closure 2 be under the terrace die, operation more than the repetition, can form out second circular convex closure 3 on long convex closure 2, so continuous production, can process out finished parts, realized the processing from long convex closure transition to circular convex closure. However, although this method of machining by using a mold can machine finished parts, the plate body 1 needs to be moved each time, which undoubtedly increases the accumulated positioning error, resulting in very low positional accuracy between the circular convex hulls 3 on each machined part, and the machining reduces the machining quality of the part. In addition, the number of the circular convex hulls is large, and the time consumed for stamping one circular convex hull is long, so that the production efficiency of finished parts is greatly reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the die for drawing the deep multi-circular convex hull on the product with the long convex hull, which has the advantages of compact structure, improvement on the production efficiency of parts and improvement on the processing quality of the parts.
The purpose of the invention is realized by the following technical scheme: a mould for drawing a plurality of round convex hulls deeply on a product with a long convex hull comprises an upper mould and a lower mould, wherein the upper mould comprises an upper support, an upper padding plate, a fixed plate, a limiting plate and a discharging plate which are sequentially and fixedly arranged at the bottom of the upper support, an upper spring is fixedly arranged in the upper support, a prepressing rod is fixedly arranged at the bottom of the upper spring, the prepressing rod sequentially penetrates through the upper padding plate, the fixed plate, the limiting plate and the discharging plate and extends below the discharging plate, a blank holder is fixedly arranged in the discharging plate, a plurality of through grooves arranged in the horizontal direction are formed in the blank holder, a plurality of convex hull concave moulds corresponding to the through grooves are fixedly arranged in the limiting plate, and the convex hull concave moulds penetrate through;
the lower die comprises a base, a lower backing plate and a concave die plate which are sequentially and fixedly arranged at the top of the base, a cavity is arranged in the concave die plate, a top plate is arranged in the cavity in a sliding manner, the top plate is arranged under the pre-pressing rod, a gap is arranged between the top plate and the lower backing plate, the top surface of the top plate extends above the concave die plate, a plurality of guide grooves which correspond to the through grooves from top to bottom are formed in the top surface of the top plate, the groove width of each guide groove is smaller than that of each through groove, a plurality of convex-hull convex dies which correspond to the guide grooves are arranged in the cavity, the bottoms of the convex-hull convex dies are fixedly arranged on the lower backing plate, the tops of the convex-hull convex dies extend into the guide grooves, the top surfaces of the convex-hull convex dies are flush with the top surface of the top plate, the diameters of the convex-hull convex dies are equal to the width of, The concave cavity is fixedly arranged on the bottom surface of the top plate.
The lower base plate is provided with a guide hole, and the force transmission column is slidably mounted in the guide hole.
The distance between two adjacent through grooves is equal.
The through groove and the guide groove are coaxially arranged.
And the limiting plate is internally provided with a mounting seat, and the top end of the convex hull and the concave die are fixedly arranged on the mounting seat.
The invention has the following advantages: the invention has compact structure, improves the production efficiency of parts and the processing quality of the parts.
Drawings
FIG. 1 is a schematic view of a product with a long convex hull;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural view of a finished part;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of the present invention in an open mold state;
FIG. 6 is a schematic view of the pre-pressing rod pressing the top plate downward;
FIG. 7 is an enlarged view of part I of FIG. 6;
FIG. 8 is a schematic view of the present invention in a closed mold state;
FIG. 9 is an enlarged partial view of section II of FIG. 8;
FIG. 10 is a schematic structural view of a convex hull punch;
FIG. 11 is a schematic structural view of a convex hull and a concave hull;
in the figure, 1-plate body, 2-long convex hull, 3-round convex hull, 4-upper support, 5-upper cushion plate, 6-fixing plate, 7-limiting plate, 8-discharging plate, 9-upper spring, 10-prepressing rod, 11-blank holder, 12-through groove, 13-convex hull concave die, 14-base, 15-lower cushion plate, 16-concave die plate, 17-concave cavity, 18-top plate, 19-guide groove, 20-convex hull convex die, 21-lower spring, 22-force transmission column, 23-guide hole and 24-mounting seat.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
as shown in fig. 5-11, a mold for drawing deep multiple circular convex hulls on products with long convex hulls comprises an upper mold and a lower mold, wherein the upper mold comprises an upper support 4, an upper padding plate 5 sequentially and fixedly arranged at the bottom of the upper support 4, a fixing plate 6, a limiting plate 7 and a discharging plate 8, an upper spring 9 is fixedly arranged in the upper support 4, a pre-pressing rod 10 is fixedly arranged at the bottom of the upper spring 9, the pre-pressing rod 10 sequentially penetrates through the upper padding plate 5, the fixing plate 6, the limiting plate 7, the discharging plate 8 extends below the discharging plate 8, a blank holder 11 is fixedly arranged in the discharging plate 8, a plurality of through grooves 12 arranged in the horizontal direction are formed in the blank holder 11, the distance between every two adjacent through grooves 12 is equal, a plurality of convex hull concave molds 13 corresponding to the through grooves 12 are fixedly arranged in the limiting plate 7, and the convex hull concave molds 13 penetrate through the.
The lower die comprises a base 14, a lower backing plate 15 and a concave die plate 16 which are sequentially and fixedly arranged on the top of the base 14, a concave cavity 17 is arranged in the concave die plate 16, a top plate 18 is arranged in the concave cavity 17 in a sliding manner, the top plate 18 is arranged under the pre-compression rod 10, a gap is arranged between the top plate 18 and the lower backing plate 15, the top surface of the top plate 18 extends above the concave die plate 16, a plurality of guide grooves 19 which correspond to the through grooves 12 up and down are formed in the top surface of the top plate 18, the through grooves 12 and the guide grooves 19 are coaxially arranged, the groove width of the guide grooves 19 is smaller than that of the through grooves 12, a plurality of convex hull convex dies 20 which correspond to the guide grooves 19 are arranged in the concave cavity 17, the bottoms of the convex hull convex dies 20 are fixedly arranged on the lower backing plate 15, the tops of the convex hull convex dies 20 extend into the guide grooves 19, the top surfaces of the convex hull convex dies 20 are flush, a lower spring 21 is arranged in the base 14, a force transmission column 22 is arranged at the top of the lower spring 21, and the other end of the force transmission column 22 penetrates through the lower backing plate 15 and the concave cavity 17 and is fixedly arranged on the bottom surface of the top plate 18.
The lower backing plate 15 is provided with a guide hole 23, and the force transmission column 22 is slidably mounted in the guide hole 23. And a mounting seat 24 is arranged in the limiting plate 7, and the top end of the convex-concave die 13 is fixedly arranged on the mounting seat 24.
The working process of the invention is as follows:
s1, connecting the upper support 4 to a stamping head of a stamping die;
s2, in the mold opening state as shown in fig. 5, the worker places the plate body 1 with the long convex hull product on the top surface of the top plate 18, and places the long convex hulls 2 right above the convex hull punches 20;
s3, operating the stamping die to enable the stamping head to move downwards, enabling the stamping head to drive the upper support 4, the upper backing plate 5, the fixing plate 6, the limiting plate 7, the discharging plate 8 and the pre-pressing rod 10 to synchronously move downwards, enabling the pre-pressing rod 10 to press the top plate 18 downwards, enabling the top plate 18 to move downwards relative to the convex hull convex die 20, enabling the top plate 18 to press the force transmission column 22 downwards, enabling the force transmission column 22 to press the spring 21 downwards, and enabling the lower spring 21 to be compressed as shown in figures 6-7; after the lower spring 21 is compressed to a certain degree, the pre-pressing rod 10 can not press the top plate 18 downwards any more, at the moment, the top end part of the convex hull convex die 20 is exposed outside the top plate 18, and the top end part of the convex hull convex die 20 extends into the long convex hull 2 of the product with the long convex hull as shown in fig. 8-9, so that the correction of the product with the long convex hull is realized;
s4, moving downwards along with the punching head, enabling the through grooves 12 in the blank holder 11 to be matched with the top ends of the convex hull convex dies 20 respectively, so that circular convex hulls 3 are formed between the convex hull convex dies 20 and the convex hull concave dies 13, and when the punching head cannot move any more, forming finished parts as shown in figures 8-9, so that the processing of transition from the long convex hulls 2 to a plurality of circular convex hulls 3 is realized;
s5, operating the stamping head to reset, enabling the stamping head to drive the upper support 4, the upper padding plate 5, the fixing plate 6, the limiting plate 7, the discharging plate 8 and the pre-pressing rod 10 to synchronously move upwards, enabling the force transfer column 22 to jack up the top plate 18 upwards under the restoring force of the lower spring 21, enabling the force transfer column 22 to jack up the top plate 18 upwards, enabling the top plate 18 to jack up the finished parts upwards, and taking the finished parts out of the top plate 18 by workers after the stamping head resets;
and S6, repeating the operations of S2-S5 to continuously process a plurality of finished parts.
In steps S3~ S4, cooperate with long convex closure 2 through convex closure terrace die 20 and in order to lead the product of taking long convex closure just, lead after the just rethread logical groove 12 and the cooperation of convex closure terrace die 20 top end, thereby realized through once frock location, can process out a plurality of circular convex closures 3 on long convex closure 2' S basis, consequently compare traditional many times frock product of taking long convex closure, very big reduction accumulative error, the position accuracy between all circular convex closures 3 on each part has been ensured, and then the machining precision of finished product part has been improved. In addition, compare the mode of traditional single circular convex closure of shaping gradually, this mould has realized a plurality of circular convex closures of one shot forming to very big improvement the machining efficiency of finished product part.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a draw mould of dark many circular convex hulls on taking long convex hull product which characterized in that: the device comprises an upper die and a lower die, wherein the upper die comprises an upper support (4), an upper padding plate (5) sequentially and fixedly arranged at the bottom of the upper support (4), a fixing plate (6), a limiting plate (7) and a stripper plate (8), an upper spring (9) is fixedly arranged in the upper support (4), a pre-pressing rod (10) is fixedly arranged at the bottom of the upper spring (9), the pre-pressing rod (10) sequentially penetrates through the upper padding plate (5), the fixing plate (6), the limiting plate (7) and the stripper plate (8) and extends below the stripper plate (8), a blank holder (11) is fixedly arranged in the stripper plate (8), a plurality of through grooves (12) arranged along the horizontal direction are arranged in the blank holder (11), a plurality of convex hull concave dies (13) corresponding to the through grooves (12) are fixedly arranged in the limiting plate (7), and the convex hull concave dies (13) penetrate through the through grooves (;
the lower die comprises a base (14), a lower backing plate (15) and a concave die plate (16) which are sequentially and fixedly arranged at the top of the base (14), a concave cavity (17) is arranged in the concave die plate (16), a top plate (18) is arranged in the concave cavity (17) in a sliding manner, the top plate (18) is arranged under the pre-pressing rod (10), a gap is arranged between the top plate (18) and the lower backing plate (15), the top surface of the top plate (18) extends above the concave die plate (16), a plurality of guide grooves (19) which vertically correspond to the through grooves (12) are formed in the top surface of the top plate (18), the groove width of each guide groove (19) is smaller than that of each through groove (12), a plurality of convex hull convex dies (20) which correspond to the guide grooves (19) are arranged in the concave cavity (17), the bottoms of the convex hull convex dies (20) are fixedly arranged on the lower backing plate (15), and the tops of, the top surface of convex closure terrace die (20) is parallel and level with the top surface of roof (18), and the diameter of convex closure terrace die (20) equals with the width of long convex closure (2) of taking long convex closure product, be provided with down spring (21) in base (14), the top of lower spring (21) is provided with power transmission post (22), and the other end of power transmission post (22) runs through lower backing plate (15), cavity (17) and sets firmly on the basal surface of roof (18).
2. The mold for drawing deep multiple round convex hulls on a long convex hull product according to claim 1, wherein: the lower backing plate (15) is provided with a guide hole (23), and the force transmission column (22) is slidably mounted in the guide hole (23).
3. The mold for drawing deep multiple round convex hulls on a long convex hull product according to claim 1, wherein: the distance between two adjacent through grooves (12) is equal.
4. The mold for drawing deep multiple round convex hulls on a long convex hull product according to claim 1, wherein: the through groove (12) and the guide groove (19) are coaxially arranged.
5. The mold for drawing deep multiple round convex hulls on a long convex hull product according to claim 1, wherein: and a mounting seat (24) is arranged in the limiting plate (7), and the top end of the convex hull and concave die (13) is fixedly arranged on the mounting seat (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011500175.0A CN112605271A (en) | 2020-12-18 | 2020-12-18 | Mould of drawing dark many circular convex hulls on taking long convex hull product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011500175.0A CN112605271A (en) | 2020-12-18 | 2020-12-18 | Mould of drawing dark many circular convex hulls on taking long convex hull product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112605271A true CN112605271A (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011500175.0A Pending CN112605271A (en) | 2020-12-18 | 2020-12-18 | Mould of drawing dark many circular convex hulls on taking long convex hull product |
Country Status (1)
| Country | Link |
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| CN (1) | CN112605271A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082823A (en) * | 2021-11-26 | 2022-02-25 | 成都宏明双新科技股份有限公司 | Mold for high-precision molding of multiple convex hulls on silk screen and molding method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001259752A (en) * | 2000-03-23 | 2001-09-25 | Araco Corp | Thin metal plate having many projections on surface and its manufacturing method |
| WO2010055063A1 (en) * | 2008-11-12 | 2010-05-20 | Lm Glasfiber A/S | A method of laying a layer of fibre material and the related apparatus |
| CN202861135U (en) * | 2012-09-07 | 2013-04-10 | 苏州铭峰精密机械有限公司 | Convex hull stamping die structure |
| WO2017181458A1 (en) * | 2016-04-20 | 2017-10-26 | 深圳市华星光电技术有限公司 | Curved display back plate forming apparatus, and forming method |
| CN209110009U (en) * | 2018-12-04 | 2019-07-16 | 成都腾达模具有限公司 | A kind of just convex molding mold |
| CN211276197U (en) * | 2019-12-13 | 2020-08-18 | 靖江三鹏模具科技股份有限公司 | Mould for extruding heavy truck clutch cover mounting plane |
| CN214290414U (en) * | 2020-12-18 | 2021-09-28 | 成都宏明双新科技股份有限公司 | Mould of drawing dark many circular convex hulls on taking long convex hull product |
-
2020
- 2020-12-18 CN CN202011500175.0A patent/CN112605271A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001259752A (en) * | 2000-03-23 | 2001-09-25 | Araco Corp | Thin metal plate having many projections on surface and its manufacturing method |
| WO2010055063A1 (en) * | 2008-11-12 | 2010-05-20 | Lm Glasfiber A/S | A method of laying a layer of fibre material and the related apparatus |
| CN202861135U (en) * | 2012-09-07 | 2013-04-10 | 苏州铭峰精密机械有限公司 | Convex hull stamping die structure |
| WO2017181458A1 (en) * | 2016-04-20 | 2017-10-26 | 深圳市华星光电技术有限公司 | Curved display back plate forming apparatus, and forming method |
| CN209110009U (en) * | 2018-12-04 | 2019-07-16 | 成都腾达模具有限公司 | A kind of just convex molding mold |
| CN211276197U (en) * | 2019-12-13 | 2020-08-18 | 靖江三鹏模具科技股份有限公司 | Mould for extruding heavy truck clutch cover mounting plane |
| CN214290414U (en) * | 2020-12-18 | 2021-09-28 | 成都宏明双新科技股份有限公司 | Mould of drawing dark many circular convex hulls on taking long convex hull product |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082823A (en) * | 2021-11-26 | 2022-02-25 | 成都宏明双新科技股份有限公司 | Mold for high-precision molding of multiple convex hulls on silk screen and molding method thereof |
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