CN107335711A - Side punching Wedge mechanism with binder function - Google Patents
Side punching Wedge mechanism with binder function Download PDFInfo
- Publication number
- CN107335711A CN107335711A CN201611044537.3A CN201611044537A CN107335711A CN 107335711 A CN107335711 A CN 107335711A CN 201611044537 A CN201611044537 A CN 201611044537A CN 107335711 A CN107335711 A CN 107335711A
- Authority
- CN
- China
- Prior art keywords
- drift
- sliding block
- wedge mechanism
- pad
- holding pad
- 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.)
- Pending
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/32—Perforating, i.e. punching holes in other articles of special shape
- B21D28/325—Perforating, i.e. punching holes in other articles of special shape using cam or wedge mechanisms, e.g. aerial cams
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/243—Perforating, i.e. punching holes in profiles
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The invention discloses a kind of side punching Wedge mechanism with binder function, including top shoe, side guide pad, sliding block, bottom guide block and punch-head assembly, top shoe is fixedly mounted on the bottom of cope plate, side guide pad and bottom guide block are fixedly mounted on the top of lower template, sliding block and punch-head assembly are slidably mounted in bottom guide block, also include holding pad and backhaul components, binder flat spring is installed on sliding block, punch-head assembly is provided with through hole, holding pad is provided with drift avoid holes, holding pad is slidably connected with bottom guide block, binder flat spring abuts through through hole and with holding pad, drift on punch-head assembly is through drift avoid holes；Backhaul components are installed on the guide pad of side, and are connected with sliding block.The present invention can complete the work being punched after the hole elder generation binder to product parts side, have it is simple in construction, installing space is small, drift convenient disassembly, save mould development cost.
Description
Technical field
The present invention relates to a kind of side punching Wedge mechanism, particularly a kind of side punching Wedge mechanism with binder function.
Background technology
Many stamping parts are complex-shaped in automobile body-in-white, and often there is various difference in functionalitys on white body product parts
Hole, some are located at holes of product parts side and must then completed using Wedge mechanism to be punched.
In the prior art, side punching Wedge mechanism is as shown in figure 1, its structure includes upper bed-plate 100, drive block 200 and slided
Motion block, the sliding shoe includes sliding block body 300 and slide-and-guide block 400, the bottom of slide-and-guide block 400 are provided with convex
Platform 500, the top of slide-and-guide block 400 are provided with screw via；The slip block body 300 is provided with and the phase of boss 500
The groove 600 of cooperation, the bottom of groove 600 are threaded hole；Screw 700 through slide-and-guide block 400 screw via with
The screwed hole slided on the upper groove 600 of block body 300 is connected.Piercing punch is fixedly mounted on slip block body by fixed seat
On 300, side punching is completed by side punching Wedge mechanism.
The side punching Wedge mechanism, complex manufacturing process, purchase cost are high, and size is bigger than normal, does not have binder function, for one
A little mini-type punching steel plate moulds easily cause die cost to increase.Due to not possessing binder function, punching quality can not be ensured.
The content of the invention
It is an object of the invention to provide a kind of side punching Wedge mechanism with binder function, with solve it is of the prior art not
Foot, it can complete the work being punched after the hole elder generation binder to product parts side, have it is simple in construction, installing space is small, punching
Head convenient disassembly, saves mould development cost.
The invention provides a kind of side punching Wedge mechanism with binder function, including top shoe, side guide pad, downslide
Block, bottom guide block and punch-head assembly, the top shoe are fixedly mounted on the bottom of cope plate, the side guide pad and the bottom
Portion's guide pad is fixedly mounted on the top of lower template, and the sliding block and the punch-head assembly are slidably mounted in the bottom
On portion's guide pad, the bottom of the top shoe is provided with the first cammed surface, and the top of the sliding block is provided with and first wedge
The second cammed surface that face is slidably matched, in addition to holding pad and backhaul components, binder flat spring, institute are installed on the sliding block
State punch-head assembly and be provided with through hole, the holding pad is provided with drift avoid holes, and the holding pad is slided with the bottom guide block
Dynamic connection, the binder flat spring abut through the through hole and with the holding pad, and the drift on the punch-head assembly passes through
It is through at the drift avoid holes；The backhaul components are installed on the side guide pad, and are connected with the sliding block.
In the foregoing side punching Wedge mechanism with binder function, it is preferable that the backhaul components include spring pilot pin
And retracting spring, the side guide pad are provided with pilot pin mounting hole, the retracting spring is socketed in the spring pilot pin,
The spring pilot pin is pacified from one end insertion of the pilot pin mounting hole away from the sliding block through the pilot pin
Sliding block described in dress Kong Houyu is spirally connected.
In the foregoing side punching Wedge mechanism with binder function, it is preferable that the cross sectional shape of the bottom guide block is T
Font, the bottom of the sliding block, the punch-head assembly and the holding pad are equipped with T-shaped groove, by T-shaped groove with
The bottom guide block is slidably matched.
In the foregoing side punching Wedge mechanism with binder function, it is preferable that the punch-head assembly include the drift and
Drift mounting seat, the drift are fixedly mounted in the drift mounting seat, and the through hole is in the drift mounting seat.
In the foregoing side punching Wedge mechanism with binder function, it is preferable that bottom also is installed including backhaul hook, the drift
The both sides of seat are provided with backhaul hook mounting groove, and the both sides of the holding pad are provided with backhaul hook guide groove, and the backhaul hook is U-shaped knot
Structure, its one end are fixedly connected in the backhaul hook mounting groove, and the other end is slidably mounted in the backhaul hook guide groove.
In the foregoing side punching Wedge mechanism with binder function, it is preferable that 2 pressing plates are additionally provided with the lower template,
The both ends of the drift mounting seat, the sliding block and the holding pad are equipped with spacing preiection, the top surface of the spacing preiection
It is slidably matched with the bottom surface of the upper limit plane of the pressing plate.
In the foregoing side punching Wedge mechanism with binder function, it is preferable that first cammed surface and described second oblique
Angle between wedge surface and horizontal plane is 45 degree.
In the foregoing side punching Wedge mechanism with binder function, it is preferable that the side guide pad is provided with slide plate.
In the foregoing side punching Wedge mechanism with binder function, it is preferable that also lead to including upper mounted plate, the top shoe
Cross the bottom that fixed plate is fixedly mounted on the cope plate.
Compared with prior art, the present invention includes top shoe, side guide pad, sliding block, bottom guide block and punch-head assembly,
The top shoe is fixedly mounted on the bottom of cope plate, and the side guide pad and the bottom guide block are fixedly mounted on lower mould
The top of plate, the sliding block and the punch-head assembly are slidably mounted in the bottom guide block, the top shoe
Bottom is provided with the first cammed surface, and the top of the sliding block is provided with the second cammed surface being slidably matched with first cammed surface,
Also include holding pad and backhaul components, binder flat spring is installed on the sliding block, the punch-head assembly is provided with through hole, institute
State holding pad and be provided with drift avoid holes, the holding pad is slidably connected with the bottom guide block, and the binder flat spring passes through
It is through at the through hole and is abutted with the holding pad, the drift on the punch-head assembly is through the drift avoid holes；It is described
Backhaul components are installed on the side guide pad, and are connected with the sliding block.The present invention is mounted with to press in bottom guide block
Flitch, the stamping procedure to punching after product parts elder generation binder is realized by the mutual cooperation of holding pad and punch-head assembly, due to
Product parts can be compressed by holding pad and positioned before punching, precision and quality during punching has been effectively ensured, has effectively carried
The yields of high product part.
The cross sectional shape of the bottom guide block is designed as to be T-shaped, and the sliding block, the punch-head assembly and
The bottom of the holding pad is respectively provided with T-shaped groove, can be in the case where realizing the effect being slidably connected to the sliding block, the punching
Head assembly and the holding pad carry out free degree limitation in other all directions in addition to the direction of motion, so as to improve punch-head assembly
Punching precision.
In addition, the present invention has, simple in construction, installing space is small, drift convenient disassembly, saves mould development cost.
Brief description of the drawings
Fig. 1 is side punching Wedge mechanism axonometric drawing in the prior art；
Fig. 2 is the integrally-built axonometric drawing of the present invention；
Fig. 3 is the explosive view of the present invention；
Fig. 4 is the partial structurtes axonometric drawing of the present invention.
Description of reference numerals：
In Fig. 1：100- upper bed-plates, 200- drive blocks, 300- slip block bodies, 400- slide-and-guide blocks, 500- boss,
600- grooves, 700- screws；
In Fig. 2-Fig. 4：1- upper mounted plates, 2- top shoes, 3- sides guide pad, 4- retracting springs, 5- slide plates, 6- pressing plates,
7- sliding blocks, 8- backhaul hooks, 9- bottom guide blocks, 10- holding pads, 11- drifts, 12- drift mounting seats, 13- spring pilot pins,
14- binder flat springs, 15- cope plates, 16- lower templates, the cammed surfaces of 17- first, the cammed surfaces of 18- second, 19- through holes, 20- drifts
Avoid holes, 21- punch-head assemblies, 22- pilot pin mounting holes, 23- backhaul hook guide grooves, 24- spacing preiections, the installation of 25- backhauls hook
Groove.
Embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, is only used for explaining the present invention, and can not be construed to
Limitation of the present invention.
Embodiments of the invention：As shown in Figure 2, Figure 3 and Figure 4, a kind of side punching Wedge mechanism with binder function, including
Top shoe 2, side guide pad 3, sliding block 7, bottom guide block 9 and punch-head assembly 21, top shoe 2 is fixed by upper mounted plate 1 pacifies
Mounted in the bottom of cope plate 15, the dismounting of top shoe 2 is easy in the setting of fixed plate 1, and side guide pad 3 and bottom guide block 9 are solid
Dingan County is mounted in the top of lower template 16, and in order to increase the slip smoothness between top shoe 2 and side guide pad 3, wherein side is oriented to
Block 3 is provided with slide plate 5；Sliding block 7 and punch-head assembly 21 are slidably mounted in bottom guide block 9, the bottom of top shoe 2
Provided with the first cammed surface 17, the top of sliding block 7 is provided with the second cammed surface 18 being slidably matched with the first cammed surface 17, in order to carry
Smoothness when the high cammed surface 18 of first cammed surface 17 and second is slidably matched, it is preferable that first cammed surface 17 and second
Angle between cammed surface 18 and horizontal plane is 45 degree, in addition to holding pad 10 and backhaul components, and the holding pad 10 is used for
Product parts are compressed, prevent that product parts are shifted and cause hole position deviation in punching processing, and holding pad is provided with sliding block 7
Spring 14, punch-head assembly 21 are provided with through hole 19, and holding pad 10 is provided with drift avoid holes 20, holding pad 10 and bottom guide block
9 are slidably connected, and binder flat spring 14 abuts through through hole 19 and with holding pad 10, and binder flat spring 14 is used for holding pad 10
Pressure-plate-force is provided, the drift 11 on punch-head assembly 21 is through drift avoid holes 20；Backhaul components are installed on side guide pad 3,
And be connected with sliding block 7, the backhaul components are used to automatically reset after sliding block 7 works.
Specifically, above-mentioned backhaul components include spring pilot pin 13 and retracting spring 4, and side guide pad 3 is provided with correcting
Mounting hole 22 is sold, retracting spring 4 is socketed in spring pilot pin 13, and spring pilot pin 13 is from pilot pin mounting hole 22 away from downslide
One end insertion of block 7, and through being spirally connected with sliding block 7 after pilot pin mounting hole 22.It will be appreciated by those skilled in the art that
It is that the backhaul components structure is only a kind of preferred scheme, and backhaul components can also use other forms, for example with nitrogen spring
Deng.
In order to ensure punching precision, it is preferable that the cross sectional shape of the bottom guide block 9 is T-shaped, sliding block 7, drift
The bottom of component 21 and holding pad 10 is equipped with T-shaped groove, is slidably matched by T-shaped groove and bottom guide block 9.Lower mould
2 pressing plates 6 are additionally provided with plate 16, the both ends of drift mounting seat 12, sliding block 7 and holding pad 10 are equipped with spacing preiection 24, limit
The bottom surface of the top surface and the upper limit plane of pressing plate 6 of position projection 24 is slidably matched.Sliding block 7, punch-head assembly 21 and holding pad first
The T-shaped groove of 10 bottoms coordinates with the bottom guide block 9 of T-shaped structure, can effectively limit remaining in addition to the direction of motion
The free degree in all directions, and by the setting of pressing plate 6, further limit sliding block 7, punch-head assembly 21 and holding pad 10
The free degree, them is only moved on pressing direction, punching precision be effectively ensured.
Further, punch-head assembly 21 includes drift 11 and drift mounting seat 12, and drift 11 is fixedly mounted on drift mounting seat
On 12, in drift mounting seat 12, drift mounting seat 12 is fixedly connected through hole 19 by bolt with sliding block 7.By drift
11 are arranged in drift mounting seat 12, installation, dismounting and the maintenance of drift 11 of being more convenient for.
Further, in addition to backhaul hook 8, the both sides of drift mounting seat 12 are provided with backhaul hook mounting groove 25, holding pad
10 both sides are provided with backhaul hook guide groove 23, and backhaul hook 8 is U-shaped structure, and its one end is fixedly connected on backhaul hook mounting groove 25
Interior, the other end is slidably mounted in backhaul hook guide groove 23.Backhaul hook 8 is used for the reset of holding pad 10, when the band of sliding block 7
When the reset of drift mounting seat 12, by the effect of backhaul hook 8, holding pad 10 can be driven together to reset.
The operation principle of the present invention：During work, upper mounted plate 1 and top shoe 2 move simultaneously downwardly together with cope plate 15
Driving sliding block 7 moves along bottom guide block 9 to product parts direction, be installed on drift mounting seat 12 in bottom guide block 9,
Drift 11 and holding pad 10 are moved together with sliding block 7, while retracting spring 4 is gradually pressed by the end of spring pilot pin 13
Contracting.When sliding block 7 moves closer to product parts, holding pad 10 takes the lead in contact product part and by the pressure of binder flat spring 14
Holding pad 10 and product parts are compacted by power, and the compacting contact product part of back punching head 11 carries out punching work, and punching work is completed
When Wedge mechanism be in closure state.Upper mounted plate 1 and top shoe 2 are with cope plate 15 together upward fortune after the completion of punching work
Dynamic, the pressure of retracting spring 4, which discharges, causes sliding block 7 to return to initial position, because drift mounting seat 12 and sliding block 7 are fixed and connected
Connect, drift mounting seat 12 can reset simultaneously with sliding block 7, while drift mounting seat 12 resets, in the work of backhaul hook 8
Resetted with lower band dynamic pressure flitch 10.
Construction, feature and the action effect of the present invention, above institute is described in detail according to the embodiment shown in schema above
Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range shown in drawing, it is every according to structure of the invention
Want made change, or be revised as the equivalent embodiment of equivalent variations, when still without departing from specification and illustrating covered spirit,
All should be within the scope of the present invention.
Claims (9)
1. a kind of side punching Wedge mechanism with binder function, including top shoe (2), side guide pad (3), sliding block (7), bottom
Guide pad (9) and punch-head assembly (21), the top shoe (2) are fixedly mounted on the bottom of cope plate (15), the side guide pad
(3) and the bottom guide block (9) is fixedly mounted on the top of lower template (16), the sliding block (7) and the drift group
Part (21) is slidably mounted in the bottom guide block (9), and the bottom of the top shoe (2) is provided with the first cammed surface
(17), the top of the sliding block (7) is provided with the second cammed surface (18) being slidably matched with first cammed surface (17), and it is special
Sign is：Also include holding pad (10) and backhaul components, binder flat spring (14), the punching are installed on the sliding block (7)
Head assembly (21) is provided with through hole (19), and the holding pad (10) is provided with drift avoid holes (20), the holding pad (10) with
The bottom guide block (9) is slidably connected, the binder flat spring (14) through the through hole (19) and with the holding pad
(10) abut, the drift (11) on the punch-head assembly (21) is through the drift avoid holes (20)；The backhaul components peace
Loaded on the side guide pad (3), and it is connected with the sliding block (7).
2. the side punching Wedge mechanism according to claim 1 with binder function, it is characterised in that：The backhaul components bag
Spring pilot pin (13) and retracting spring (4) are included, the side guide pad (3) is provided with pilot pin mounting hole (22), the backhaul
Spring (4) is socketed in the spring pilot pin (13), and the spring pilot pin (13) is remote from the pilot pin mounting hole (22)
One end from the sliding block (7) is inserted, and is spirally connected afterwards with the sliding block (7) through the pilot pin mounting hole (22).
3. the side punching Wedge mechanism according to claim 1 with binder function, it is characterised in that：The bottom guide block
(9) cross sectional shape is T-shaped, and the bottom of the sliding block (7), the punch-head assembly (21) and the holding pad (10) is all provided with
There is T-shaped groove, be slidably matched by T-shaped groove and the bottom guide block (9).
4. the side punching Wedge mechanism with binder function according to claim 1 or 3, it is characterised in that：The drift group
Part (21) includes the drift (11) and drift mounting seat (12), and the drift (11) is fixedly mounted on the drift mounting seat
(12) on, the through hole (19) is on the drift mounting seat (12).
5. the side punching Wedge mechanism according to claim 4 with binder function, it is characterised in that：Also include backhaul hook
(8), the both sides of the drift mounting seat (12) are provided with backhaul hook mounting groove (25), and the both sides of the holding pad (10) are provided with back
Journey hook guide groove (23), the backhaul hook (8) are U-shaped structure, and its one end is fixedly connected on the backhaul hook mounting groove (25)
Interior, the other end is slidably mounted in the backhaul hook guide groove (23).
6. the side punching Wedge mechanism according to claim 4 with binder function, it is characterised in that：The lower template (16)
On be additionally provided with 2 pressing plates (6), the both ends of the drift mounting seat (12), the sliding block (7) and the holding pad (10) are all provided with
Limited location projection (24), the bottom surface of the top surface and the upper limit plane of the pressing plate (6) of the spacing preiection (24) is slidably matched.
7. the side punching Wedge mechanism according to claim 1 with binder function, it is characterised in that：First cammed surface
(17) and angle of second cammed surface (18) between horizontal plane is 45 degree.
8. the side punching Wedge mechanism according to claim 1 with binder function, it is characterised in that：The side guide pad
(3) it is provided with slide plate (5).
9. the side punching Wedge mechanism according to claim 1 with binder function, it is characterised in that：Also include upper mounted plate
(1), the top shoe (2) is fixedly mounted on the bottom of the cope plate (15) by fixed plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611044537.3A CN107335711A (en) | 2016-11-24 | 2016-11-24 | Side punching Wedge mechanism with binder function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611044537.3A CN107335711A (en) | 2016-11-24 | 2016-11-24 | Side punching Wedge mechanism with binder function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107335711A true CN107335711A (en) | 2017-11-10 |
Family
ID=60222444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611044537.3A Pending CN107335711A (en) | 2016-11-24 | 2016-11-24 | Side punching Wedge mechanism with binder function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107335711A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109051677A (en) * | 2018-10-06 | 2018-12-21 | 东台市飞凌电气设备有限公司 | Gantry feeding deviation correcting device |
| CN109604463A (en) * | 2018-12-19 | 2019-04-12 | 格致汽车科技股份有限公司 | Self-adjusting plate part locators in stamping dies |
| CN110465581A (en) * | 2019-09-20 | 2019-11-19 | 张家港市华地机械装备有限公司 | A kind of punching plates mold |
| CN110479857A (en) * | 2019-09-20 | 2019-11-22 | 张家港市华地机械装备有限公司 | A kind of frame saddle three-surface punching device |
| CN111014427A (en) * | 2019-12-17 | 2020-04-17 | 苏州和林微纳科技有限公司 | Side punching mechanism with movable guide block |
| CN112588951A (en) * | 2020-12-18 | 2021-04-02 | 芜湖市元山机械制造有限公司 | Quick conversion mould of battery package |
| CN112658109A (en) * | 2019-10-15 | 2021-04-16 | 无锡东宇精密模具有限公司 | Inclined wedge mechanism for stamping |
| CN112692161A (en) * | 2020-12-25 | 2021-04-23 | 江苏尚诚精密模具科技有限公司 | Side punching die for automobile parts |
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| CN102962318A (en) * | 2011-09-01 | 2013-03-13 | 苏州汉扬精密电子有限公司 | Lateral hole punching structure |
| KR20130109752A (en) * | 2012-03-28 | 2013-10-08 | 주식회사 동구기업 | The die assembly system which accomplishes the side department forming and piercing of panel simultaneously |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109051677A (en) * | 2018-10-06 | 2018-12-21 | 东台市飞凌电气设备有限公司 | Gantry feeding deviation correcting device |
| CN109604463A (en) * | 2018-12-19 | 2019-04-12 | 格致汽车科技股份有限公司 | Self-adjusting plate part locators in stamping dies |
| CN110465581A (en) * | 2019-09-20 | 2019-11-19 | 张家港市华地机械装备有限公司 | A kind of punching plates mold |
| CN110479857A (en) * | 2019-09-20 | 2019-11-22 | 张家港市华地机械装备有限公司 | A kind of frame saddle three-surface punching device |
| CN110479857B (en) * | 2019-09-20 | 2024-05-14 | 张家港市华地机械装备有限公司 | Three-sided punching device for frame saddle |
| CN112658109A (en) * | 2019-10-15 | 2021-04-16 | 无锡东宇精密模具有限公司 | Inclined wedge mechanism for stamping |
| CN111014427A (en) * | 2019-12-17 | 2020-04-17 | 苏州和林微纳科技有限公司 | Side punching mechanism with movable guide block |
| CN112588951A (en) * | 2020-12-18 | 2021-04-02 | 芜湖市元山机械制造有限公司 | Quick conversion mould of battery package |
| CN112588951B (en) * | 2020-12-18 | 2023-07-25 | 芜湖市元山机械制造有限公司 | A battery pack rapid conversion mold |
| CN112692161A (en) * | 2020-12-25 | 2021-04-23 | 江苏尚诚精密模具科技有限公司 | Side punching die for automobile parts |
| CN112692161B (en) * | 2020-12-25 | 2025-09-02 | 江苏尚诚精密模具科技有限公司 | A side punching die for automobile parts |
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Application publication date: 20171110 |
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| WD01 | Invention patent application deemed withdrawn after publication |