CN108500136B - Preforming mold of clamping piece and forming process of clamping piece - Google Patents
Preforming mold of clamping piece and forming process of clamping piece Download PDFInfo
- Publication number
- CN108500136B CN108500136B CN201810365441.XA CN201810365441A CN108500136B CN 108500136 B CN108500136 B CN 108500136B CN 201810365441 A CN201810365441 A CN 201810365441A CN 108500136 B CN108500136 B CN 108500136B
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- die
- bending
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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
- B21D37/08—Dies with different parts for several steps in a process
-
- 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
- B21D53/00—Making other particular articles
- B21D53/36—Making other particular articles clips, clamps, or like fastening or attaching devices, e.g. for electric installation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention relates to the field of dies, and particularly discloses a preforming die of a clamping piece and a forming process of the clamping piece, wherein the preforming die comprises a continuous die upper die, a continuous die lower die matched with the continuous die upper die, and a conveying device for conveying workpieces at all stations; the clamping jaw bending station is used for bending the second sheet into a clamping jaw, and the circular ring bending station is used for bending the first sheet into a circular ring shape on the basis that the clamping jaw bending station bends the clamping piece base material. The preformed clamping piece is obtained by bending the clamping piece base material through the bending process, the processing process is simple, the production efficiency is high, and raw materials are not wasted.
Description
Technical Field
The invention relates to the field of mold manufacturing, in particular to a preformed mold of a clamping piece and a forming process of the clamping piece.
Background
With the rapid development of economy in China, the updating and upgrading of electronics, automobiles and engineering machinery are faster and faster. Stamped products are used in more and more fields.
As shown in fig. 1, the joint spare including integrative ring 10 and a plurality of jack catch 20 that sets up, the one end and the axial one end of ring 10 of jack catch 20 are connected, and a plurality of jack catch 20 are arranged along the circumferencial direction of ring 10 equidistant, jack catch 20 includes joint portion 202 and supporting part 201, the one end and the ring 10 of supporting part 201 are connected, the other end is connected with the one end of joint portion 202, joint portion 202 is the slice, the relative joint portion 202 of the other end of joint portion 202 is close to ring 10 with the one end that supporting part 201 is connected, and extend to the axis direction of keeping away from ring 10, supporting part 201 is the stairstepping, the one end and the ring 10 of supporting part 201 stairstepping are connected, the other end is connected with joint portion 202, and the relative one end of being connected with ring 10 of supporting part 201 stairstepping and the joint portion 202 is close to the axis of ring 10. For this joint spare, because the structure is complicated, generally form through CNC machining center is whole among the prior art, mill unnecessary part with an entity raw materials, obtain corresponding product, but this kind of processing technology can lead to the very big waste of raw materials to production efficiency is lower.
Therefore, a preformed mold for a clip and a molding process for the clip are needed to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to: the utility model provides a preforming mould of joint spare and the forming process of this joint spare to solve among the prior art and process the extravagant raw materials of this joint spare, problem that production efficiency is low through CNC machining center.
The invention aims to provide a preforming die of a clamping piece, which comprises a progressive die upper die, a progressive die lower die matched with the progressive die upper die, and a conveying device for conveying workpieces at all stations, and further comprises a clamping jaw bending station and a circular ring bending station which are arranged between the progressive die upper die and the progressive die lower die, wherein the clamping jaw bending station and the circular ring bending station are used for bending a clamping piece base material, and the clamping piece base material comprises a square first piece and a plurality of second pieces which are integrally connected with the same edge of the first piece;
the clamping jaw bending station is used for bending the second sheet into a clamping jaw, and the circular ring bending station is used for bending the first sheet into a circular ring shape on the basis that the clamping jaw bending station bends the base material of the clamping piece.
Preferably, the jaw bending station comprises a first bending portion and a second bending portion, the first bending portion and the second bending portion are arranged between the upper continuous die and the lower continuous die, the first bending portion is used for bending one end, far away from the first piece, of the second piece into a first preset angle, and the second bending portion is used for bending one end, far away from the first piece, of the second piece into a first angle on the basis that the first bending portion is opposite to the second piece is bent.
Preferably, the first bending portion comprises a first male die and a first female die, the first male die is mounted on the upper die of the progressive die, the first female die is mounted on the lower die of the progressive die and arranged opposite to the first male die, the first male die can press the second sheet onto the first female die, and one end, far away from the first sheet, of the second sheet is bent to a first preset angle.
Preferably, the second bending portion comprises a fixing block arranged on the upper die of the progressive die, a second male die connected with the fixing block, and a second female die arranged on the lower die of the progressive die, the second male die can press the second sheet tightly onto the second female die, the fixing block can push the second male die to move relative to the second female die along the horizontal direction, and the second male die can enable one end of the second sheet to be far away from the first sheet to be bent to a first angle.
Preferably, the second male die is connected with the fixed block in a sliding mode, the sliding direction of the second male die relative to the fixed block is from inclined lower direction to inclined upper direction, the lower end face of the second male die is higher than the lower end face of the fixed block, and in the die assembly process, the lower end face of the second male die and the lower end face of the fixed block can be in contact with the top face of the second female die arranged in the horizontal direction in sequence.
Preferably, the jack catch bending station still includes third bending portion and fourth bending portion, third bending portion with fourth bending portion is used for with the intermediate part of second piece is bent into the stairstepping structure, third bending portion is used for bending out a corner of second piece stairstepping structure, the fourth bending portion is used for bending out another corner of second piece stairstepping structure.
Preferably, the ring bending station comprises n fifth bending stations sequentially arranged between the upper progressive die and the lower progressive die, n is a positive integer greater than or equal to 3, the first sheet is sequentially bent from two ends to the middle by the n fifth bending stations, and each fifth bending station can bend the first sheet
Bent into two circular arcs, and the central angle corresponding to each circular arc is equal to ^ or ^>
Preferably, the fifth foldThe bending station comprises a fifth female die arranged on the upper die of the progressive die and a fifth male die arranged on the lower die of the progressive die and opposite to the fifth female die, both ends of each fifth male die in the length direction are arc surfaces, and the central angle corresponding to each arc surface is
Another object of this embodiment is to provide a forming process of a clamping member, which includes the following steps:
s10: providing a clamping piece base material;
s20: processing the clamping piece base material by adopting the preforming die of the clamping piece in any scheme;
s30: heat treatment;
s40: and welding a gap on the second circular ring-shaped structure.
Preferably, the base material of the clamping piece is manufactured by a stamping process.
The invention has the beneficial effects that: preprocessing a sheet-shaped clamping piece base material through a continuous die, processing the sheet-shaped clamping piece base material into the shape of a clamping piece, specifically, bending a second piece of the clamping piece base material through a clamping jaw bending station, processing the second piece into the shape of a clamping jaw, bending a first piece through a circular ring bending station, and bending the first piece into a circular ring shape; follow-up gap repair welding on with the ring through welding process, simple process, production efficiency is high, and extravagant raw and other materials can be solved and the problem that the extravagant raw materials of joint spare and production efficiency is low is processed through CNC machining center among the prior art.
Drawings
FIG. 1 is a schematic structural diagram of a clamping member according to the background art of the present invention;
FIG. 2 is a schematic structural diagram of a base material of the clip member according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a preforming mold of the clip member in the embodiment of the invention;
FIG. 4 is a schematic view of a first bend in a preform mold for the clip of FIG. 3;
fig. 5 is a schematic structural view of a second bending portion of the preforming mold of the fastener shown in fig. 3;
FIG. 6 is a schematic view of a third bend in the pre-forming mold of the fastener shown in FIG. 3;
FIG. 7 is a schematic view of a fourth bend in a preform mold for the clip of FIG. 3;
FIG. 8 is a schematic view of a first configuration of a fifth bending portion of the pre-forming mold of the fastener shown in FIG. 3;
fig. 9 is a schematic structural view of a second form of the fifth bending portion in the preforming mold of the fastener shown in fig. 3.
In the figure:
10. a circular ring; 20. a jaw; 201. a support portion; 202. a clamping part; 30. a first sheet; 40. a second sheet;
1. a jack catch bending station;
11. a first bending portion; 111. a first male die; 112. a first female die;
12. a second bending portion; 121. a fixed block; 122. a second male die; 123. a second female die;
13. a third bent portion; 131. a third male die; 132. a third female die;
14. a fourth bent portion; 141. a fourth male die; 142. a fourth female die;
2. a circular ring bending station; 21. a fifth bending station; 211. a fifth female die; 212. a fifth male die;
3. an upper die holder;
4. and a lower die holder.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 3, this embodiment provides a preforming mould of joint piece, including the modulus of continuity mould, rather than the compound modulus of continuity lower mould and be located the conveyor between modulus of continuity mould and the modulus of continuity lower mould, this modulus of continuity mould includes the upper cover plate that from top to bottom connects gradually, upper die base 3, the upper padding plate, the punch holder, overhead gage and stripper plate, this modulus of continuity lower mould includes the lower bolster that from top to bottom connects gradually, lower bolster and lower die base 4, this preforming mould still includes and sets gradually according to the order of processing the upper padding plate with jack catch bending station 1 and ring bending station 2 between the lower padding plate, jack catch bending station 1 and ring bending station 2 are used for bending the joint piece substrate, the structure of joint piece substrate is as shown in fig. 2, this joint piece substrate is the lamellar joint piece substrate, including square first piece 30 and the second piece 40 of this first piece 30 of length direction's an organic whole connection on one side, a plurality of second piece 40 are arranged on first piece 30 equidistant, bending station 1 is used for bending the second piece 40, can bend the axial bending ring-shaped joint piece of this jack catch 30 is used for bending the ring-shaped joint piece of preforming ring-shaped structure, this second piece bending station 30 is used for bending the axial bending of this second piece bending. The conveying device is used for conveying the clamping piece base materials among all stations, continuous operation can be realized through the conveying of the conveying device, and the processing efficiency is improved; bend many times through preforming mould to joint spare substrate and make preforming joint spare, avoided raw and other materials extravagant.
It should be noted that, the base material of the clip in this embodiment can be obtained by punching a thin material through a stamping process, the conveying device in this embodiment can be a conveying belt, which is the prior art, and the upper continuous die are also the prior art, and are not described herein again.
As shown in fig. 1 and 4 to 7, the jaw bending station 1 includes a first bending portion 11, a second bending portion 12, and a third bending portion 13 disposed between the upper die and the lower die of the progressive die, the first bending portion 11 is configured to bend one end of the second sheet 40 away from the first sheet 30 to a first predetermined angle, the second bending portion 12 is configured to bend one end of the second sheet 40 away from the first sheet 30 to the first predetermined angle based on the first bending portion 11 bending the second sheet 40, and the third bending portion 13 and the fourth bending portion 14 are configured to bend a middle portion of the second sheet 40 to a step-shaped structure based on the second bending portion 12 bending the second sheet 40.
Specifically, referring to fig. 4, the first bending portion 11 includes a first male die 111 mounted on the upper die base 3 and a first female die 112 mounted on the lower die base 4 and disposed opposite to the first male die 111, the first male die 111 and the first female die 112 can be engaged, and when the dies are closed, the first male die 111 can press the second sheet 40 against the first female die 112 and bend an end of the second sheet 40 away from the first sheet 30 to a first predetermined angle, that is, the first bending portion 11 bends an end of the second sheet 40 away from the first sheet 30 into the clamping portion 202. It should be noted that the first bending portion 11 in the present embodiment can simultaneously bend the plurality of second pieces 40.
Referring to fig. 5, the second bending portion 12 includes a fixed block 121 mounted on the upper die holder 3, a second male die 122 connected to the fixed block 121, and a second female die 123 mounted on the lower die holder 4, the second male die 122 is slidably connected to the fixed block 121, a sliding direction of the second male die 122 and a sliding direction of the fixed block 121 are along an oblique lower direction to an oblique upper direction, a lower end surface of the second male die 122 is higher than a lower end surface of the fixed block 121, and in a die assembling process, both the lower end surface of the second male die 122 and the lower end surface of the fixed block 121 can be in contact with a top surface of the second female die 123 arranged in a horizontal direction. After the second male die 122 and the second female die 123 are contacted first, the second male die 122 presses the second sheet 40 on the second female die 123, the second male die 122 slides along the sliding direction relative to the fixing block 121 under the pushing of the fixing block 121 as the fixing block 121 gradually approaches to the second female die 123, and the fixing block 121 moves downward, so that the second male die 122 can slide along the horizontal direction relative to the second male die 122, after the fixing block 121 is contacted with the second female die 123, the second male die 122 is contacted with the bending part of the second sheet 40, and the end of the second sheet 40 away from the first sheet 30 is bent to a first angle, so that the second sheet 40 is bent into a barb shape. In this embodiment, first angle is the obtuse angle, and first predetermined angle is the acute angle, folds out first angle through twice bending, can guarantee the machining precision of bending.
Referring to fig. 6, the third bending portion 13 includes a third punch 131 mounted on the upper die holder 3 and a third die 132 mounted on the lower die holder 4 and disposed opposite to the third punch 131, the third punch 131 and the third die 132 can be engaged, and when the dies are closed, the third punch 131 can press one end of the second sheet 40 close to the first sheet 30 against the third die 132 and bend the second sheet 40 at an obtuse angle in the length direction.
Referring to fig. 7, the fourth bending portion 14 includes a fourth punch 141 mounted on the upper die base 3 and a fourth die 142 mounted on the lower die base 4 and disposed opposite to the fourth punch 141, the fourth punch 141 and the fourth die 142 can be engaged, and when the dies are closed, the fourth punch 141 can press one end of the second sheet 40 close to the first sheet 30 against the fourth die 142 and bend the second sheet 40 at another obtuse angle in the length direction, and the obtuse angle is opposite to the obtuse angle bent by the third bending portion 13 from the second sheet 40 and close to the first sheet 30, so as to form a stepped structure.
Referring to fig. 1 again, the ring bending station 2 includes n fifth bending stations 21 sequentially disposed between the upper continuous mold die and the lower continuous mold die, where n is a positive integer greater than or equal to 3, the n fifth bending stations 21 sequentially bend the first sheet 30 from two ends to the middle, and each fifth bending station 21 can bend the first sheet 30 from the middle
Bent into two circular arcs, and the central angle corresponding to each circular arc is equal to->
The number of fifth bending stations 21 is 5 in this embodiment, and each fifth bending station 21 is capable of picking up a first sheet 30>
Bending into two opposite circular arcs, wherein the central angle corresponding to each circular arc is equal to 36 degrees, specifically, the first fifth bending station 21 bends the two ends of the first sheet 30 in the length direction into circular arcs respectively, on the basis, the second fifth bending station 21 bends the two ends of the plane part between the two circular arcs of the first sheet 30 into two circular arcs again, and the two circular arcs bent with the first fifth bending station 21 are connected end to end, and so on, the n fifth bending stations 21 bend the first sheet 30 into two circular arcs in the end-to-end mannerBent into a circular ring shape connected end to end. />
It should be noted that, when the first sheet 30 is bent into a circular ring shape, one end of the stepped structure of the second sheet 40 is connected to the first sheet 30, the other end is close to the axis of the circular ring-shaped structure of the first sheet 30, and one end of the second sheet 40, which is far away from the first sheet 30, is bent towards the direction of the axis of the circular ring-shaped structure of the first sheet 30.
Specifically, referring to fig. 8 and 9, the fifth bending station 21 includes a fifth concave die 211 mounted on the upper die holder 3 and a fifth convex die 212 mounted on the lower die holder 4 and disposed opposite to the fifth concave die 211, both ends of each fifth convex die 212 are arc surfaces disposed opposite to each other, and a central angle corresponding to each arc surface is
It should be noted that in this embodiment, as shown in fig. 8, the top ends of the two arc surfaces of the fifth male dies 212 of the first four fifth bending stations 21 are connected by a plane, as shown in fig. 9, the top ends of the two arc surfaces of the fifth male dies 212 of the last fifth bending station 21 are connected, and when the dies are closed, the fifth female die 211 of the fifth bending station 21 presses the first sheet 30 against the fifth male dies 212, and bends the first sheet 30 into a circular ring shape.
The embodiment also provides a forming process of the clamping piece, which comprises the following steps:
s10: providing a clamping piece base material; according to the outside shape design cutter of joint spare substrate, utilize this cutter to die-cut the sheet material through stamping process, can obtain joint spare substrate, compare CNC machining center and have higher production efficiency.
S20: processing the clamping piece base material by adopting the preforming mold of the clamping piece in the scheme; the second sheet 40 is bent into the clamping jaw 20 by the clamping jaw bending station 1, and the first sheet 30 is bent into a circular ring shape by the circular ring bending station 2.
S30: heat treatment; and (5) carrying out heat treatment on the preformed clamping piece workpiece prepared in the step (S20) to enhance the mechanical property of the workpiece.
S40: welding a gap on the circular structure of the second piece 40; the circular ring-shaped structures are connected end to end and integrated into a whole structure through welding.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (5)
1. A preforming die of a clamping piece comprises a progressive die upper die, a progressive die lower die matched with the progressive die upper die, and a conveying device used for conveying workpieces at each station, and is characterized by also comprising a clamping jaw bending station (1) and a circular ring bending station (2) which are arranged between the progressive die upper die and the progressive die lower die, wherein the clamping jaw bending station (1) and the circular ring bending station (2) are used for bending a clamping piece base material, the clamping piece base material comprises a square first piece (30) and a plurality of second pieces (40) which are integrally connected with the same side of the first piece (30);
the clamping jaw bending station (1) is used for bending the second sheet (40) into a clamping jaw (20), and the circular ring bending station (2) is used for bending the first sheet (30) into a ring shape on the basis that the clamping jaw bending station (1) bends the base material of the clamping piece;
the jaw bending station (1) comprises a first bending part (11) and a second bending part (12) which are arranged between the upper continuous die and the lower continuous die, the first bending part (11) is used for bending one end, far away from the first sheet (30), of the second sheet (40) into a first preset angle, the second bending part (12) is used for bending one end, far away from the first sheet (30), of the second sheet (40) into a first angle on the basis that the first bending part (11) bends the second sheet (40), and therefore the first angle is bent twice;
the first bending part (11) comprises a first male die (111) arranged on the upper die of the progressive die and a first female die (112) arranged on the lower die of the progressive die and opposite to the first male die (111), the first male die (111) can press the second sheet (40) on the first female die (112), and one end, far away from the first sheet (30), of the second sheet (40) is bent to a first preset angle;
the second bending part (12) comprises a fixed block (121) arranged on the upper die of the progressive die, a second male die (122) connected with the fixed block (121), and a second female die (123) arranged on the lower die of the progressive die, wherein the second male die (122) can press the second sheet (40) on the second female die (123), the fixed block (121) can push the second male die (122) to move relative to the second female die (123) along the horizontal direction, and thus the second male die (122) can bend one end, away from the first sheet (30), of the second sheet (40) to a first angle;
the second male die (122) is connected with the fixed block (121) in a sliding mode, the sliding direction of the second male die (122) relative to the fixed block (121) is from inclined downward to inclined upward, the lower end face of the second male die (122) is higher than the lower end face of the fixed block (121), and in the die closing process, the lower end face of the second male die (122) and the lower end face of the fixed block (121) can be in contact with the top face of the second female die (123) arranged in the horizontal direction in sequence;
jaw bending station (1) still includes third bending (13) and fourth bending (14), third bending (13) with fourth bending (14) are used for with the middle part of second piece (40) is bent into the stairstepping structure, third bending (13) are used for rolling over a turning of second piece (40) stairstepping structure, fourth bending (14) are used for rolling over another turning of second piece (40) stairstepping structure.
2. The preforming tool of claim 1, wherein the ring bending station (2) comprises n fifth bending stations (21) sequentially disposed between the upper and lower continuous die molds, n being a positive integer greater than or equal to 3, and n fifth bending stationsThe bending stations (21) sequentially bend the first sheet (30) from two ends to the middle, and each fifth bending station (21) can bend the first sheet (30)
Bending into two circular arcs, wherein the central angle corresponding to each circular arc is equal to
3. The preforming mold for a fastener according to claim 2, wherein the fifth bending station (21) comprises a fifth female mold (211) installed on the upper mold of the progressive die and a fifth male mold (212) installed on the lower mold of the progressive die and opposite to the fifth female mold (211), both ends of each fifth male mold (212) in the length direction are arc surfaces, and a central angle corresponding to each arc surface is
4. A forming process of a clamping piece is characterized by comprising the following steps:
s10: providing a clamping piece base material;
s20: processing the clip base material by using the preformed mold of the clip according to any one of claims 1 to 3;
s30: heat treatment;
s40: and welding a gap on the annular structure of the first sheet (30).
5. The process of claim 4, wherein the clip substrate is formed by a stamping process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810365441.XA CN108500136B (en) | 2018-04-23 | 2018-04-23 | Preforming mold of clamping piece and forming process of clamping piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810365441.XA CN108500136B (en) | 2018-04-23 | 2018-04-23 | Preforming mold of clamping piece and forming process of clamping piece |
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| Publication Number | Publication Date |
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| CN108500136A CN108500136A (en) | 2018-09-07 |
| CN108500136B true CN108500136B (en) | 2023-04-14 |
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| CN201810365441.XA Active CN108500136B (en) | 2018-04-23 | 2018-04-23 | Preforming mold of clamping piece and forming process of clamping piece |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109013917B (en) * | 2018-10-09 | 2023-05-16 | 昆山永顺电子科技发展有限公司 | Metal frame bending and buckling stamping die and production process thereof |
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| CN201960053U (en) * | 2011-01-11 | 2011-09-07 | 昆山荣腾模具部品制造有限公司 | Back-pressure stripping mechanism |
| CN103406436A (en) * | 2013-07-18 | 2013-11-27 | 苏州旭创精密模具有限公司 | Automobile fastener stamping die |
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| CN105149444A (en) * | 2015-08-21 | 2015-12-16 | 哈尔滨建成集团有限公司 | Die for continuously stamping U-shaped rolled cylinders and provided with suspended mandrel |
| CN205289438U (en) * | 2015-10-27 | 2016-06-08 | 亿和精密工业（苏州）有限公司 | Edge rolling mould |
| CN205496318U (en) * | 2016-01-29 | 2016-08-24 | 昆山科默精密机械有限公司 | Mould mechanism of bending |
| CN206425415U (en) * | 2017-02-09 | 2017-08-22 | 天津市鸿捷达模具开发有限公司 | Metal sheet side hairpin curve press-working apparatus and mould |
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2018
- 2018-04-23 CN CN201810365441.XA patent/CN108500136B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201960053U (en) * | 2011-01-11 | 2011-09-07 | 昆山荣腾模具部品制造有限公司 | Back-pressure stripping mechanism |
| CN103406436A (en) * | 2013-07-18 | 2013-11-27 | 苏州旭创精密模具有限公司 | Automobile fastener stamping die |
| CN203992137U (en) * | 2014-06-20 | 2014-12-10 | 上海鸿基金属制品有限公司 | Plunger latch head drives the multistage volume sired results of plate continuous mould bit architecture |
| CN105149444A (en) * | 2015-08-21 | 2015-12-16 | 哈尔滨建成集团有限公司 | Die for continuously stamping U-shaped rolled cylinders and provided with suspended mandrel |
| CN205289438U (en) * | 2015-10-27 | 2016-06-08 | 亿和精密工业（苏州）有限公司 | Edge rolling mould |
| CN205496318U (en) * | 2016-01-29 | 2016-08-24 | 昆山科默精密机械有限公司 | Mould mechanism of bending |
| CN206425415U (en) * | 2017-02-09 | 2017-08-22 | 天津市鸿捷达模具开发有限公司 | Metal sheet side hairpin curve press-working apparatus and mould |
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|---|---|
| CN108500136A (en) | 2018-09-07 |
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