CN107350322A - A kind of lateral fast-positioning device of bending and the bender for being equiped with the device - Google Patents
A kind of lateral fast-positioning device of bending and the bender for being equiped with the device Download PDFInfo
- Publication number
- CN107350322A CN107350322A CN201710816960.9A CN201710816960A CN107350322A CN 107350322 A CN107350322 A CN 107350322A CN 201710816960 A CN201710816960 A CN 201710816960A CN 107350322 A CN107350322 A CN 107350322A
- Authority
- CN
- China
- Prior art keywords
- bending
- bottom plate
- alignment pin
- measuring instrument
- angel measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/22—Auxiliary equipment, e.g. positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of lateral fast-positioning device of bending and the magnet base and the leveling hook of magnet base right-hand member that are equiped with below the bender of the device, including the positioning side plate of the angel measuring instrument of bottom plate, plate upper surface, angel measuring instrument right-hand member, bottom plate；Bottom plate penetrates the circular hole on angel measuring instrument provided with an alignment pin two and several alignment pins three are located on angel measuring instrument below arc groove；Long slot bore is offered on positioning side plate, its cross section is L-shaped, and its inner side two face in two faces and angel measuring instrument right-hand member contacts, and its lower surface contacts with plate upper surface；There is magnet inside the magnet base, its right-hand member is provided with leveling hook；Wherein, angel measuring instrument can be that rotating shaft rotates on bottom plate with alignment pin two；Positioning side plate can slide back and forth along the right-hand member of angel measuring instrument.The present invention is reasonable in design, simple to operate, and the lateral register of accurate quick can be provided in bending operation, ensures bending precision, effect is good, practical.
Description
Technical field
The invention belongs to mechanical field, and in particular to a kind of lateral fast-positioning device of bending and the folding for being equiped with the device
Bender.
Background technology
With the hair of the industries such as engineering machinery, automobile, track traffic, ship, Aero-Space, electrical instrumentation and building decoration
Exhibition, forming accuracy of the domestic and international panel beating enterprise to sheet metal product, appearance requirement more and more higher, while the shape of sheet metal component
Shape is more and more with specification, for profile is irregular or the irregular part of bending line, the rearmounted positioner of traditional bender
Bending size can not be often accurately positioned, influences bending effect.
The content of the invention
To solve deficiency present in present technology, the present invention provides a kind of lateral fast-positioning device of bending and is equiped with
The bender of the device, accurate efficiently lateral register can be provided in bending operation using the present invention, it is ensured that the essence of bending
Degree.
The technical scheme that the present invention solves technical problem is as follows：
A kind of lateral fast-positioning device of bending of the present invention, including bottom plate, angel measuring instrument, positioning side plate, magnet base and
Leveling hook；An alignment pin two and several alignment pins three that center offers screwed hole are provided with the bottom plate,
Plane is higher by plane on bottom plate on the alignment pin two, plane and planes align on bottom plate on alignment pin three；The He of alignment pin two
Set screw three is provided with the screwed hole of alignment pin three；The angel measuring instrument is arranged on the left side of plate upper surface, its
Left part semicircular in shape simultaneously offers arc groove, and circular hole is offered at the home position of the arc groove and is covered outer with alignment pin two
Side, its left part upper surface arc end are imprinted with bevel protractor, and its right part is rectangular and front and rear be provided with two centers and offer
The alignment pin one of screwed hole；The alignment pin three is respectively positioned on the underface of arc groove；The positioning side plate is arranged on angular surveying
The right-hand member of instrument, offers long slot bore thereon, and its right side upper surface is imprinted with scale, and its cross section is L-shaped, its two face in inner side
Contacted with two faces of angel measuring instrument right-hand member, its right-hand member lower surface contacts with plate upper surface；Described two alignment pins one are equal
Penetrate long slot bore and connected angel measuring instrument with positioning side plate by set screw two；The magnet base is arranged on the right side of bottom plate
The rear end of lower section, it is internally provided with magnet, and its right-hand member is provided with leveling hook；
Wherein, angel measuring instrument can be that rotating shaft rotates on bottom plate with alignment pin two；Positioning side plate can be along angel measuring instrument
Right-hand member slide back and forth.
Further, it is connected between the magnet base and bottom plate by flat head screw.
Further, it is connected between the magnet base and leveling hook by set screw one.
Further, the alignment pin two is located on the cross central line of bottom plate.
Further, the alignment pin three has 3, and one is located on the cross central line of bottom plate, and two other is bottom of on
It is front and rear symmetrical on the cross central line of plate.
Further, the diameter of the alignment pin one is identical with the width of long slot bore.
Further, the diameter of the alignment pin two is identical with the diameter of circular hole.
Further, the diameter of the alignment pin three is identical with the spacing of two circular arcs of arc groove.
It is of the invention another solve technical problem technical scheme be：
A kind of bender for being equiped with a kind of above-mentioned lateral fast-positioning device of bending, is characterized in：Including with the magnetic
The bending lower die of power seat connection and the bending upper die being adapted with bending lower die.
When the lateral fast-positioning device of bending of the present invention is applied, it is connected by magnet base with bending lower die, unclamps and adjust
Screw one is saved, it is concordant with the working face of bending lower die by plane on leveling hook adjustment bottom plate, workpiece is positioned on bottom plate and put down
On face and bending lower die working face, unclamp set screw two and lay down set screw three, adjustment positioning side plate and angel measuring instrument
Position, make the bending line position dimension of workpiece consistent with bending upper die, bending lower die die-closed position, tighten set screw two,
Set screw three is screwed into alignment pin two and alignment pin three simultaneously, then starts bending operation.In bending operation, angel measuring instrument
The angle position of positioning side plate can be read, the front and back position of positioning side plate can be read by positioning the scale on side plate, be bending
Operation provides the lateral register of accurate quick, it is ensured that bending precision.
Relative to prior art, the present invention has advantages below：
(1) novel in structural design of the present invention is reasonable, simple to operate, and lateral register is fast, and bending precision is high, applied widely,
Effect is good；
(2) present invention can provide quick accurate side by design angle measuring instrument and positioning side plate in bending operation
To positioning, ensure the precision of bending, improve bending efficiency, ensure the quality of sheet metal product, there is good economic benefit.
Brief description of the drawings
Fig. 1 is the structural representation of heretofore described positioner；
Fig. 2 is the schematic top plan view of heretofore described positioner；
Fig. 3 is that the right side of heretofore described positioner regards schematic diagram；
Fig. 4 is the structural representation of heretofore described bender；
Fig. 5 is that showing when positioning side plate is vertical with bottom plate cross central line during the positioner operation is applied in the present invention
It is intended to；
Workpiece when positioning side plate is vertical with bottom plate cross central line Fig. 6 is applies the positioner operation in the present invention when
And its schematic diagram of bending line；
Fig. 7 be apply in the present invention during positioner operation positioning side plate turn right α angles when schematic diagram；
Fig. 8 for apply in the present invention during positioner operation positioning side plate turn right α angles when workpiece and its folding
One of schematic diagram of curved line；
Fig. 9 for apply in the present invention during positioner operation positioning side plate turn right α angles when workpiece and its folding
The two of the schematic diagram of curved line；
Figure 10 be apply in the present invention during positioner operation positioning side plate turn left α angles when schematic diagram；
Figure 11 for apply in the present invention during positioner operation positioning side plate turn left α angles when workpiece and its folding
One of schematic diagram of curved line；
Figure 12 for apply in the present invention during positioner operation positioning side plate turn left α angles when workpiece and its folding
The two of the schematic diagram of curved line；
In figure：1- bottom plates；2- angel measuring instruments；3- positions side plate；4- magnet bases；5- magnet；6- leveling hooks；7- adjusts spiral shell
Silk one；8- flat head screws；9- alignment pins one；10- set screws two；11- alignment pins two；12- alignment pins three；13- bending upper dies；
14- bending lower dies；15- arc grooves；16- long slot bores；17- circular holes；18- bevel protractors；19- scales；20- set screws three；21- rolls over
Curved line.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Unless otherwise defined, technical term or scientific terminology used herein should be in disclosure art and had
The ordinary meaning that the personage of general technical ability is understood.Used in disclosure patent application specification and claims
" on ", " under ", "left", "right", "front", "rear" etc. are only used for representing relative position relation, when the absolute position for being described object
After change, then the relative position relation also correspondingly changes.
Embodiment 1：
As shown in Figure 1 to Figure 3, the lateral fast-positioning device of a kind of bending, including bottom plate 1, angel measuring instrument 2, oriented side
Plate 3, magnet base 4 and leveling hook 6；A center is provided with the bottom plate 1 and offers screwed hole alignment pin 2 11 and 3
Center offers screwed hole alignment pin 3 12, and plane is higher by plane on bottom plate 1 on the alignment pin 2 11, the alignment pin 3 12
Upper plane and planes align on bottom plate 1；Set screw is provided with the screwed hole of the alignment pin 2 11 and alignment pin 3 12
3 20, alignment pin 3 12 here can also be arranged as required to as one or more；The angel measuring instrument 2 is arranged on bottom plate
The left side of 1 upper surface, its left part semicircular in shape simultaneously offer arc groove 15, circular hole are offered at the home position of the arc groove 15
17 and cover and be imprinted with bevel protractor 18 with the outside of alignment pin 2 11, its left part upper surface arc end, its right part is rectangular and front and rear
It is symmetrically arranged with two alignment pins 1 that screwed hole is offered in center；The alignment pin 3 12 is respectively positioned on arc groove
15 underface；The positioning side plate 3 is arranged on the right-hand member of angel measuring instrument 2, and longitudinal direction offers long slot bore 16 thereon, its right side
Upper surface is imprinted with scale 19, and its cross section is L-shaped, and its inner side two face in two faces and 2 right-hand member of angel measuring instrument contacts, its
Right-hand member lower surface and the upper surface of bottom plate 1；Described two alignment pins 1 penetrate long slot bore 16 and by set screws two
10 connect angel measuring instrument 2 and positioning side plate 3；The magnet base 4 is arranged on the rear end of the lower right-hand side of bottom plate 1, sets inside it
Magnet 5 is equipped with, its right-hand member is provided with leveling hook 6；Wherein, when the removal of set screw 3 20 or during in releasing orientation, angle is surveyed
Amount instrument 2 can be that rotating shaft rotates on bottom plate 1 with alignment pin 2 11, while the positioning side plate 3 for driving its right-hand member to set turns together
It is dynamic；When set screw 1 is in releasing orientation, positioning side plate 3 can slide back and forth along the right-hand member of angel measuring instrument 2.This implementation
Magnet base 4 is used to connect Bending Mould in example, and leveling hook 6 is concordant with Bending Mould working face for adjusting bottom plate 1；This implementation
Alignment pin 2 11 is advantageous in that in the circular hole 17 for can stretch into angel measuring instrument 2 and surveyed as angle higher than plane on bottom plate 1 in example
Measure rotating shaft when instrument 2 rotates；The height of alignment pin 3 12 is concordant with bottom plate 1 in the present embodiment, and in arc groove 15 just under
Side, the stop of alignment pin 3 12 can will not be run into when angel measuring instrument 2 rotates, meanwhile, rotate to require position when, can
So that angel measuring instrument 2 and bottom plate 1 to be fixed by set screw 3 20.
It is connected between magnet base 4 described in the present embodiment and bottom plate 1 by flat head screw 8, uses flat head screw 8
When benefit is fixed magnet base 4 and bottom plate 1, the flat head screw 8 will not be higher by bottom plate 1, be easy to workpiece to carry out bending on bottom plate 1
Operation.
It is connected between magnet base 4 described in the present embodiment and leveling hook 6 by set screw 1, set screw 1
It can carry out as needed elastic in order to by leveling hook 6 that bottom plate 1 is concordant with the working face adjustment of Bending Mould.
Alignment pin 2 11 described in the present embodiment is located on the cross central line of bottom plate 1, and the benefit so set is more just
In by angel measuring instrument 2 with positioning side plate 3 draw positioning side plate 3 rotate angle and positioning side plate 3 slide back and forth away from
From.
Alignment pin 3 12 described in the present embodiment, one is located on the cross central line of bottom plate 1, and two other is bottom of on
Front and rear symmetrical on the cross central line of plate 1, the benefit so set is when angel measuring instrument 2 turns to the angle of needs, is led to
Overregulate when screw 3 20 fixes bottom plate 1 and angel measuring instrument 2 and more consolidate, to ensure precision during work bending.
The diameter of alignment pin 1 described in the present embodiment is identical with the width of long slot bore 16, is so easy to angel measuring instrument 2
Fixation with positioning side plate 3.
The diameter of alignment pin 2 11 described in the present embodiment is identical with the diameter of circular hole 17, so that is estimated by angle
The angle that the positioning side plate 3 that instrument 2 is measured rotates is more accurate.
The diameter of alignment pin 3 12 described in the present embodiment is identical with the spacing of two circular arcs of arc groove 15, is so easy to angle
Spend the fixation of measuring instrument 2 and bottom plate 1.
Embodiment 2：
A kind of bender for being equiped with a kind of above-mentioned lateral fast-positioning device of bending, including be connected with the magnet base 4
Bending lower die 14 and the bending upper die 13 that is adapted with bending lower die 14.
During present invention application, it is connected by magnet base 4 with bending lower die 14, unclamps set screw 1, pass through leveling hook 6
Plane is concordant with the working face of bending lower die 14 on adjustment bottom plate 1, and workpiece is positioned over into plane and the work of bending lower die 14 on bottom plate 1
Make on face, unclamp set screw 2 10 and lay down set screw 3 20, the position of adjustment positioning side plate 3 and angel measuring instrument 2, make
The bending line position dimension of workpiece is consistent with bending upper die 13, the die-closed position of bending lower die 14, tightens set screw 2 10, simultaneously
Set screw 3 20 is screwed into alignment pin 2 11 and alignment pin 3 13, then starts bending operation.In bending operation, angular surveying
Bevel protractor 18 on instrument 2 can read the angle position of positioning side plate 3, and the scale 19 positioned on side plate 3 can read oriented side
The front and back position of plate 3, the lateral register of accurate quick is provided for bending operation, it is ensured that bending precision.
When Fig. 5 and Fig. 6 shows fast-positioning device bending operation lateral using the bending, when the positioner operation
When Shi Dingwei side plates are vertical with bottom plate cross central line, the schematic diagram of workpiece and its bending line.
When Fig. 7 to Fig. 9 shows fast-positioning device bending operation lateral using the bending, when the positioner operation
Shi Dingwei side plates turn right α angles when, the bending schematic diagram of two kinds of situations of workpiece and its bending line.
When Figure 10 to Figure 12 shows fast-positioning device bending operation lateral using the bending, when the positioner is made
During industry position side plate turn left α angles when, the bending schematic diagram of two kinds of situations of workpiece and its bending line.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Part is not described in detail by the present invention, is the known technology of those skilled in the art of the present technique.
Claims (9)
1. a kind of lateral fast-positioning device of bending, it is characterized in that：Including bottom plate (1), angel measuring instrument (2), positioning side plate
(3), magnet base (4) and leveling hook (6)；The positioning that center offers screwed hole is provided with the bottom plate (1)
Pin two (11) and several alignment pins three (12), plane is higher by plane on bottom plate (1), alignment pin three on the alignment pin two (11)
(12) plane and planes align on bottom plate (1) on；It is respectively provided with the screwed hole of the alignment pin two (11) and alignment pin three (12)
There is set screw three (20)；The angel measuring instrument (2) is arranged on the left side of bottom plate (1) upper surface, and its left part semicircular in shape is simultaneously
Arc groove (15) is offered, circular hole (17) is offered at the home position of the arc groove (15) and is covered outer with alignment pin two (11)
Side, its left part upper surface arc end are imprinted with bevel protractor (18), and its right part is rectangular and front and rear be provided with two centers and open
Alignment pin one (9) provided with screwed hole；The alignment pin three (12) is respectively positioned on the underface of arc groove (15)；The positioning side plate
(3) right-hand member of angel measuring instrument (2) is arranged on, offers long slot bore (16) thereon, its right side upper surface is imprinted with scale (19),
Its cross section is L-shaped, and its inner side two face in two faces and angel measuring instrument (2) right-hand member contacts, its right-hand member lower surface and bottom
Plate (1) upper surface；Described two alignment pins one (9) penetrate long slot bore (16) and by set screw two (10) by angle
Measuring instrument (2) and positioning side plate (3) connection；The magnet base (4) is arranged on the rear end of bottom plate (1) lower right-hand side, sets inside it
Magnet (5) is equipped with, its right-hand member is provided with leveling hook (6)；
Wherein, angel measuring instrument (2) can be that rotating shaft rotates on bottom plate (1) with alignment pin two (11)；Positioning side plate (3) can edge
The right-hand member of angel measuring instrument (2) slides back and forth.
2. the lateral fast-positioning device of a kind of bending according to claim 1, it is characterized in that：The magnet base (4) and bottom
It is connected between plate (1) by flat head screw (8).
3. the lateral fast-positioning device of a kind of bending according to claim 1, it is characterized in that：The magnet base (4) is with adjusting
Plain hook is connected between (6) by set screw one (7).
4. the lateral fast-positioning device of a kind of bending according to claim 1, it is characterized in that：Described (11) position of alignment pin two
In on the cross central line of bottom plate (1).
5. the lateral fast-positioning device of a kind of bending according to claim 1, it is characterized in that：Alignment pin three (12) number
Measure as 3, one on the cross central line of bottom plate (1), two other is front and rear right on cross central line on bottom plate (1)
Claim.
6. the lateral fast-positioning device of a kind of bending according to claim 1, it is characterized in that：The alignment pin one (9)
Diameter is identical with the width of long slot bore (16).
7. the lateral fast-positioning device of a kind of bending according to claim 1, it is characterized in that：The alignment pin two (11)
Diameter is identical with the diameter of circular hole (17).
8. the lateral fast-positioning device of a kind of bending according to claim 1, it is characterized in that：The alignment pin three (12)
Diameter is identical with the spacing of two circular arcs of arc groove (15).
9. a kind of bender for being equiped with the lateral fast-positioning device of a kind of bending described in claim any one of 1-8, it is special
Sign is：Including the bending lower die (14) being connected with the magnet base (4) and the bending upper die being adapted with bending lower die (14)
(13)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710816960.9A CN107350322B (en) | 2017-09-12 | 2017-09-12 | Bending lateral quick positioning device and bending machine provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710816960.9A CN107350322B (en) | 2017-09-12 | 2017-09-12 | Bending lateral quick positioning device and bending machine provided with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107350322A true CN107350322A (en) | 2017-11-17 |
| CN107350322B CN107350322B (en) | 2023-06-02 |
Family
ID=60290215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710816960.9A Active CN107350322B (en) | 2017-09-12 | 2017-09-12 | Bending lateral quick positioning device and bending machine provided with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107350322B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273921A (en) * | 2018-03-17 | 2018-07-13 | 昆山仁硕机械制造有限公司 | A kind of molding bending lower die structure installing magnet additional |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07185668A (en) * | 1993-12-24 | 1995-07-25 | Maru Kikai Kogyo Kk | Work front positioning device for bending machine |
| CN105583264A (en) * | 2014-10-23 | 2016-05-18 | 上海沃迪自动化装备股份有限公司 | Multi-functional bending device |
| CN207170602U (en) * | 2017-09-12 | 2018-04-03 | 安徽联盟模具工业股份有限公司 | A kind of lateral fast-positioning device of bending and the bender for being equiped with the device |
-
2017
- 2017-09-12 CN CN201710816960.9A patent/CN107350322B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07185668A (en) * | 1993-12-24 | 1995-07-25 | Maru Kikai Kogyo Kk | Work front positioning device for bending machine |
| CN105583264A (en) * | 2014-10-23 | 2016-05-18 | 上海沃迪自动化装备股份有限公司 | Multi-functional bending device |
| CN207170602U (en) * | 2017-09-12 | 2018-04-03 | 安徽联盟模具工业股份有限公司 | A kind of lateral fast-positioning device of bending and the bender for being equiped with the device |
Non-Patent Citations (1)
| Title |
|---|
| 文振辉;: "数控折弯机折弯模具的改进" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273921A (en) * | 2018-03-17 | 2018-07-13 | 昆山仁硕机械制造有限公司 | A kind of molding bending lower die structure installing magnet additional |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107350322B (en) | 2023-06-02 |
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