CN107262608A - The decompressor of stamping parts of automobile - Google Patents
The decompressor of stamping parts of automobile Download PDFInfo
- Publication number
- CN107262608A CN107262608A CN201710696666.9A CN201710696666A CN107262608A CN 107262608 A CN107262608 A CN 107262608A CN 201710696666 A CN201710696666 A CN 201710696666A CN 107262608 A CN107262608 A CN 107262608A
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- CN
- China
- Prior art keywords
- decompressor
- stamping parts
- workpiece
- center
- automobile
- 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
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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
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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 kind of decompressor of stamping parts of automobile, including diel, base, diel is multiple, multiple diels are circumferentially distributed using the center of pressure disc as the center of circle, diel includes station die and the punch-pin for the stamped workpieces into station die, and station die is fixed relative to base.When needing stamped workpieces, needed to set correspondence diel according to supply and demand, multiple process punching presses successively are carried out to workpiece by multiple diels on the decompressor of stamping parts of automobile, most workpiece takes out after punching press at last.In the decompressor for the stamping parts of automobile that the application is provided, by setting multiple diels, when workpiece has multiple stamping procedures, directly punching press can be completed on the decompressor of a stamping parts of automobile, and multiple workpiece punching presses can be carried out simultaneously, significantly reduce the cost of stamping of workpiece.
Description
Technical field
The present invention relates to part punching technical field, more particularly to a kind of decompressor of stamping parts of automobile.
Background technology
With stamping parts complexity more and more higher, especially stamping parts of automobile, stamping procedure is more, is produced specifically
, it is necessary to which multiple process punch formings, also need to carry out punching, stretching process in journey.
For the fine device of the decompressor of stamping parts of automobile, blanking pressure, counter-pressure, the pressure-pad-force of fine machine are former
Reason, the counter-pressure of fine machine, pressure-pad-force will carry out transmission production by the pressure disc of fine machine by transmission rod.Specifically,
When a part needs to carry out multiple stamping procedures, work is carried out by the decompressor of many stamping parts of automobile set gradually
Part each process punching production successively.
However, the stamping procedure of workpiece needs the decompressor ability punching press of many stamping parts of automobile to complete, it is less efficient,
The decompressor production of many stamping parts of automobile, situations such as being easily caused product batch mixing, get rusty, and cause workpiece cost of stamping
It is higher
Therefore, workpiece cost of stamping how is improved, is those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide a kind of decompressor of stamping parts of automobile, to reduce the cost of stamping of workpiece.
To achieve the above object, the present invention provides a kind of decompressor of stamping parts of automobile, including diel, base,
The diel is multiple, and multiple diels are circumferentially distributed using the center of pressure disc as the center of circle, the diel
Punch-pin including station die and for from the stamped workpieces to the station die, the station die is solid relative to the base
It is fixed.
Preferably, the multiple diel is circumferentially distributed using the center of the pressure disc as the center of circle.
Preferably, in addition to：
The rotary disk between the punch-pin and the station die is arranged on, the rotary disk, which is provided with, to be used for for described convex
The punch-pin that mould passes through passes through hole；
And for driving drive device of the rotary disk using pressure disk center as the rotation of center of rotation.
Preferably, in addition to：
Lowering or hoisting gear for driving the rotary disk elevation and subsidence；
And for clamping the clamping device of workpiece, the clamping device is arranged on the rotary disk.
Preferably, the lowering or hoisting gear is corresponded with the drive device, and the housing of the lowering or hoisting gear is arranged on
On the base, one end of the drive device is arranged on the telescopic end of the lowering or hoisting gear, and the other end connects with the rotary disk
Connect.
Preferably, the lowering or hoisting gear at least two, the lowering or hoisting gear is circumferential by the center of circle of the pressure disk center
It is uniformly distributed.
Preferably, the lowering or hoisting gear is expansion link, cylinder or hydraulic cylinder.
Preferably, in addition to central rotating shaft, the bottom of the rotary disk is provided with the rotation for being used for accommodating the central rotating shaft
Hole, the axis of the central rotating shaft with pressure disc center superposition.
Preferably, in addition to the pick-off unit for punching press material to be taken out.
Preferably, the diel is eight, and the drive device drives the rotary disk to rotate 45 degree every time.
In the above-mentioned technical solutions, the decompressor for the stamping parts of automobile that the present invention is provided includes diel, base, punching
Compression mould is multiple, and multiple diels are circumferentially distributed using the center of pressure disc as the center of circle, diel including station die and
For the punch-pin of the stamped workpieces into station die, station die is fixed relative to base.When needing stamped workpieces, according to confession
It need to need to set correspondence diel, workpiece be carried out by multiple diels on the decompressor of stamping parts of automobile multiple
Process punching press successively, most workpiece takes out after punching press at last.
By foregoing description, in the decompressor for the stamping parts of automobile that the application is provided, by setting multiple punchings
Compression mould, when workpiece has multiple stamping procedures, directly punching press can be completed on the decompressor of a stamping parts of automobile, and
Multiple workpiece punching presses can be carried out simultaneously, the cost of stamping of workpiece is significantly reduced.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
The centre position top view of the decompressor for the stamping parts of automobile that Fig. 1 is provided by the embodiment of the present invention；
The side view of the decompressor for the stamping parts of automobile that Fig. 2 is provided by the embodiment of the present invention；
The side view of another angle of the decompressor for the stamping parts of automobile that Fig. 3 is provided by the embodiment of the present invention；
The structural representation of the decompressor for the stamping parts of automobile that Fig. 4 is provided by the embodiment of the present invention；
Another angled arrangement schematic diagram of the decompressor for the stamping parts of automobile that Fig. 5 is provided by the embodiment of the present invention；
The top view of the decompressor for the stamping parts of automobile that Fig. 6 is provided by the embodiment of the present invention；
The upward view of the decompressor for the stamping parts of automobile that Fig. 7 is provided by the embodiment of the present invention；
The structural representation for the Workpiece clamping device that Fig. 8 is provided by the embodiment of the present invention；
The installation site figure for the pick-off unit that Fig. 9 is provided by the embodiment of the present invention.
In wherein Fig. 1-9：1- bases, 2- rotary disks, 3- lowering or hoisting gears, 4- drive devices；
5- Workpiece clamping devices, the gripping blocks of 51- first, the gripping blocks of 52- second, the retractor devices of 53- first, 54- second stretch
Compression apparatus；
6- punch-pin is led by hole, 7- central rotating shafts, 8- connecting rods, 9- punch-pin, 10- station dies, 11- limited posts, 12-
Post, 13- supports ball, 14- blowers.
Embodiment
The core of the present invention is to provide a kind of decompressor of stamping parts of automobile, to reduce the cost of stamping of workpiece.
In order that those skilled in the art more fully understands technical scheme, below in conjunction with the accompanying drawings and embodiment party
The present invention is described in further detail for formula.
Fig. 1 to Fig. 9 is refer to, in a kind of embodiment, the stamping parts of automobile that the specific embodiment of the invention is provided
Decompressor, specifically, the decompressor of stamping parts of automobile can be can be used in common diel with fine device,
Including diel, base 1, diel is multiple, and multiple diels are circumferentially distributed using the center of pressure disc as the center of circle, punching
Compression mould includes station die 10 and the punch-pin 9 for the stamped workpieces into station die 10, and station die 10 is relative to base 1
It is fixed.It is more highly preferred to, multiple diels are circumferentially distributed using the center of pressure disc as the center of circle.
The number of diel is according to depending on actual conditions, according to conventional parts punching press size, it is preferable that preferably, punching press
Mould is eight.Depending on each diel punching press parts process as needed and specific requirement, the application does not do specific limit
It is fixed, when parts stamping procedure is less, multigroup stamping procedure can be set.
When needing stamped workpieces, needed to set correspondence diel according to supply and demand, filled by the punching press of stamping parts of automobile
The multiple diels put carry out multiple process punching presses successively to workpiece, and most workpiece takes out after punching press at last.
By foregoing description, in the decompressor for the stamping parts of automobile that the application specific embodiment is provided, lead to
Cross and multiple diels are set, when workpiece there are multiple stamping procedures, rushed directly on the decompressor of a stamping parts of automobile
Pressure can be completed, and can carry out multiple workpiece punching presses simultaneously, significantly reduce the cost of stamping of workpiece, improve production effect
Rate, while the hidden danger for avoiding product batch mixing, getting rusty.
Further, the decompressor of the stamping parts of automobile also includes rotary disk 2 and drive device 4, wherein, rotary disk 2 is set
Put between punch-pin 9 and station die 10, rotary disk 2 is provided with the punch-pin for being used for passing through for punch-pin 9 and passes through hole 6.Drive device 4
For driving rotation of the rotary disk 2 using pressure disk center as center of rotation.When diel is eight, drive device 4 is each
Rotary disk 2 is driven to rotate 45 degree.
Specifically, drive device 4 can also include servomotor and and servomotor with oscillating cylinder, drive device 4
The travelling gear of output shaft connection, the wherein side of rotary disk 2 are provided with the turning gear engaged with travelling gear.Dress is rotated by setting
Put, realize that automatic traction workpiece turns to next diel position, reduce the labor intensity of staff.
Further, the decompressor of the stamping parts of automobile also includes lowering or hoisting gear 3 and Workpiece clamping device 5, wherein, rise
Falling unit 3 is used to drive rotary disk 2 to lift, and Workpiece clamping device 5 is used to clamp workpiece, and Workpiece clamping device 5 is arranged on revolution
On disk 2.
For the ease of the decompressor of assembling motor vehicle stamping parts, it is preferable that lowering or hoisting gear 3 is corresponded with drive device 4,
The housing of lowering or hoisting gear 3 is arranged on base 1, and one end of drive device 4 is arranged on the telescopic end of lowering or hoisting gear 3, the other end with
Rotary disk 2 is connected.Specifically, lowering or hoisting gear 3 is expansion link, cylinder or hydraulic cylinder.In order to reduce area occupied, it is preferable that lifting
Device 3 is cylinder, specifically, lowering or hoisting gear 3 can be connected by connecting rod 8 with drive device 4.
Specifically, during work, the punching press sent into when product material strip in the decompressor of stamping parts of automobile, die procedure
Mould is punching blank process, and after the completion of punching press, rotary disk 2 is moved down by lowering or hoisting gear 3, and Workpiece clamping device 5 holds production
Product blank, rotary disk 2 is moved up by lowering or hoisting gear 3, and rotary disk 2 passes through the drive device 4 above lowering or hoisting gear 3, pendulum
Dynamic predetermined angle, with product blank to the corresponding diel position of the second process, lowering or hoisting gear 3 declines, Workpiece clamping dress
Put 5 to open, product blank is put on the corresponding station die 10 of the second process 2；Rotary disk 2 rises, and reverse predetermined angle is returned
Position；Above process is repeated, product is completed and is transmitted from the circulation of multiple processes, it is achieved thereby that in the decompressor of stamping parts of automobile
In the range of limited pressure disc, the production model of more diels is accommodated in design, solves the punching press of stamping parts of automobile
Device pressure limit is small, it is necessary to which the decompressor of many stamping parts of automobile completes the passive situation of multiple working procedure punching press.
Specifically, Workpiece clamping device 5 can be the device with sucker, sucker is sucked by workpiece by negative pressure.Workpiece
The number of clamping device 5 specifically can be two, three etc., in order to improve bonding strength, it is preferable that Workpiece clamping device 5 is even number
It is individual, and Workpiece clamping device 5 is arranged symmetrically two-by-two.For the ease of smoothly clamping workpiece, it is preferable that Workpiece clamping device 5 includes phase
To the first clamp assembly of arrangement and the second clamp assembly, the first clamp assembly includes the first gripping block 51 and drives the first gripping block
51 the first flexible retractor devices 53, the second clamp assembly includes the second gripping block 52, the first gripping block 51 and the second gripping block
52 are arranged symmetrically.
It is more highly preferred to, the second clamp assembly also includes the second retractor device for being used to drive the second gripping block 52 flexible
54, the first retractor device 53 is identical with the telescopic direction of the second retractor device 54, and the axis of telescopic shaft is located at same straight line
On.First retractor device 53 and the second retractor device 54 are specifically as follows hydraulic cylinder or expansion link.
In order to reduce overall area occupied, it is preferable that the first retractor device 53 and/or the second retractor device 54 are cylinder.When
When needing to clamp workpiece, the first retractor device 53 drives the first gripping block 51 to be moved to workpiece, and the second retractor device 54 drives the
Two gripping blocks 52 are moved to workpiece, and the final gripping block 52 of first gripping block 51 and second clamps workpiece.
In order to further clamp workpiece, it is preferable that as shown in figure 1, the face of stepping up of the first gripping block 51 is to the first flexible dress
The arc for putting 53 indents clamps face, and the face of stepping up of the second gripping block 52 is to step up face to the arc of the indent of the second retractor device 54.
Especially when outer surface of workpiece is arc, it is preferable that arc clamps face and can fitted with outer surface of workpiece.
It is preferred that, the first gripping block 51 step up face and the face of stepping up of the second gripping block 52 is all provided with elasticity layer.By setting
Put elastic layer, it is to avoid the situation that the first gripping block 51 and the second gripping block 52 are contacted firmly with workpiece, improve the processing matter of workpiece
Amount.
Be more highly preferred to, the first gripping block 51 step up face and the face of stepping up of the second gripping block 52 is equipped with anti-slip veins.It is logical
Cross setting anti-slip veins, it is to avoid during travelling workpiece, the situation that workpiece comes off.
On the basis of such scheme, it is preferable that material clamping device also includes being used to control the first retractor device 53 and the
The controlling switch of two retractor devices 54 motion.Because the first retractor device 53 and the second retractor device 54 pass through a control simultaneously
Switch control, improves the synchronism of the first retractor device 53 and the motion of the second retractor device 54, improves positioning precision.
Further, lowering or hoisting gear 3 at least two, lowering or hoisting gear 3 is circumferentially uniformly distributed using pressure disk center as the center of circle.Tool
Body, lowering or hoisting gear 3 can be two, three etc., by setting multiple lowering or hoisting gears 3, improve the kinetic stability of rotary disk 2,
Improve crudy.
In order to improve rotation accuracy, it is preferable that the decompressor of the stamping parts of automobile also includes central rotating shaft 7, rotary disk 2
Bottom be provided with and be used to accommodating the rotation hole of central rotating shaft 7, the axis of central rotating shaft 7 with pressure disc center superposition.By setting
Put central rotating shaft 7 so that rotary disk 2 is around the device of central rotating shaft 7, it is to avoid the situation that position is offset in the rotation process of rotary disk 2.
For the ease of the material after the completion of punching press is taken out in time, it is preferable that the decompressor of the stamping parts of automobile also includes
For the pick-off unit for taking out punching press material.Specifically, pick-off unit, which can be telescoping cylinder pushing meanss or air pressure, blows dress
Put, after finished product is machined, finished product discharging is released by pick-off unit.
Specifically, workpiece fetching device is Pneumatic push device, Pneumatic push device includes pressure gas source and is fixedly connected
The blower 13 exported in pressure gas source, the outlet of blower 13 is used for the delivery air of station die 10, and pressure gas source is installed
On base 1.When needing pickup, then pressure gas source is blown out to the conveying high-pressure gas of blower 13 by blower 13
Gas blows out workpiece on station die 10.
For the ease of workpiece is taken out in time, it is preferable that Pneumatic push device is multiple, each correspondence of station die 10 one
Pneumatic push device., will by correspondence Pneumatic push device according to the part machined on correspondence station die 10 during work
Workpiece is released.
It is preferred that, for the overall manufacturing cost of the decompressor for reducing stamping parts of automobile, it is preferable that blower 13 be it is multiple,
Air outlet connection in one blower 13 of each correspondence of station die 10, the air inlet and pressure gas source of multiple blowers 13.
Pick-off unit sets a pressure gas source to release the corresponding workpiece of multiple station dies 10, simple to operate, easy for installation,
Cost is low.
In order to extend the service life of blower 13, it is preferable that blower 13 is metal tube, is in charge of to reduce gas blowing
Interior resistance, it is preferable that blower 13 is metal curved pipe.
In order to further extend the service life of blower 13, while being easy to process blower 13, it is preferable that blower 13
Air outlet is provided with support ball 14, and blower 13 is round tube, specifically, it is preferable that support ball 14 is support steel ball.
After the completion of work pieces process, by the workpiece fetching device that is arranged on base 1 by workpiece on station die 10
Take out.
By foregoing description, the pickup of the decompressor of the stamping parts of automobile provided in the application specific embodiment
In device, by setting workpiece fetching device, after the completion of work pieces process, by workpiece fetching device directly by workpiece by station
Taken out on mould 10, it is to avoid be required to the situation that staff manually takes out workpiece every time, significantly reduce staff's
Labor intensity.
In another embodiment, workpiece fetching device includes picking and placeing telescoping cylinder and for material to be released into automobile stamping
The push rod of the decompressor of part, one end of push rod is connected with picking and placeing the telescopic end of part telescoping cylinder.Specifically, picking and placeing part telescoping cylinder and being
Hydraulic cylinder or cylinder, in order to reduce overall volume, it is preferable that pick and place part telescoping cylinder for cylinder, the housing for picking and placeing telescoping cylinder is arranged on
On base 1.
For the ease of workpiece is taken out in time, it is preferable that workpiece fetching device is multiple, each correspondence of station die 10 one
Workpiece fetching device., will by correspondence workpiece fetching device according to the part machined on correspondence station die 10 during work
Workpiece is released.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of decompressor of stamping parts of automobile, including diel, base (1), it is characterised in that the diel is
Multiple, multiple diels are circumferentially distributed using the center of pressure disc as the center of circle, and the diel includes station die
(10) and the punch-pin (9) for the stamped workpieces into the station die (10), the station die (10) is relative to the bottom
Seat (1) is fixed.
2. the decompressor of stamping parts of automobile according to claim 1, it is characterised in that the multiple diel
It is circumferentially distributed using the center of the pressure disc as the center of circle.
3. the decompressor of stamping parts of automobile according to claim 2, it is characterised in that also include：
The rotary disk (2) between the punch-pin (9) and the station die (10) is arranged on, the rotary disk (2) is provided with use
Pass through hole (6) in the punch-pin passed through for the punch-pin (9)；
And for driving drive device (4) of the rotary disk (2) using pressure disk center as the rotation of center of rotation.
4. the decompressor of stamping parts of automobile according to claim 3, it is characterised in that also include：
For the lowering or hoisting gear (3) for driving the rotary disk (2) to lift；
And for clamping the Workpiece clamping device (5) of workpiece, the Workpiece clamping device (5) is arranged on the rotary disk (2).
5. the decompressor of stamping parts of automobile according to claim 4, it is characterised in that the lowering or hoisting gear (3) and institute
State drive device (4) to correspond, the housing of the lowering or hoisting gear (3) is arranged on the base (1), the drive device
(4) one end is arranged on the telescopic end of the lowering or hoisting gear (3), and the other end is connected with the rotary disk (2).
6. the decompressor of stamping parts of automobile according to claim 5, it is characterised in that the lowering or hoisting gear (3) is at least
For two, the lowering or hoisting gear (3) is circumferentially uniformly distributed using the pressure disk center as the center of circle.
7. the decompressor of stamping parts of automobile according to claim 4, it is characterised in that the lowering or hoisting gear (3) is to stretch
Contracting bar, cylinder or hydraulic cylinder.
8. the decompressor of stamping parts of automobile according to claim 3, it is characterised in that also including central rotating shaft (7), institute
The bottom for stating rotary disk (2) is provided with and is used to accommodating the rotation holes of the central rotating shaft (7), the axis of the central rotating shaft (7) with
With pressure disc center superposition.
9. the decompressor of stamping parts of automobile according to claim 4, it is characterised in that also including for by punching press material
The pick-off unit of taking-up.
10. the decompressor of the stamping parts of automobile according to any one of claim 3-9, it is characterised in that the punching press
Mould is eight, and the drive device (4) drives the rotary disk (2) to rotate 45 degree every time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710696666.9A CN107262608B (en) | 2017-08-15 | 2017-08-15 | Stamping device of automobile stamping part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710696666.9A CN107262608B (en) | 2017-08-15 | 2017-08-15 | Stamping device of automobile stamping part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107262608A true CN107262608A (en) | 2017-10-20 |
| CN107262608B CN107262608B (en) | 2023-10-10 |
Family
ID=60077671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710696666.9A Active CN107262608B (en) | 2017-08-15 | 2017-08-15 | Stamping device of automobile stamping part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107262608B (en) |
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|---|---|---|---|---|
| EP2233221A2 (en) * | 2009-03-18 | 2010-09-29 | Sacel Srl | Punching device for a progressive die punching machine for metal punched parts |
| CN104070098A (en) * | 2014-06-12 | 2014-10-01 | 宁波新冠联机电有限公司 | Multi-station punching device |
| CN104607535A (en) * | 2015-01-20 | 2015-05-13 | 无锡铸华机械科技有限公司 | Automatic punching special machine for automobile glass guide rail |
| CN204503944U (en) * | 2014-11-28 | 2015-07-29 | 嘉兴恒旭精密设备有限公司 | A kind of multiple-station rotation diel |
| CN206215759U (en) * | 2016-11-29 | 2017-06-06 | 思高特自动化设备（青岛）有限公司 | A kind of metal plate punching mould |
| CN207086711U (en) * | 2017-08-15 | 2018-03-13 | 聊城市博源节能科技有限公司 | The decompressor of stamping parts of automobile |
-
2017
- 2017-08-15 CN CN201710696666.9A patent/CN107262608B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2233221A2 (en) * | 2009-03-18 | 2010-09-29 | Sacel Srl | Punching device for a progressive die punching machine for metal punched parts |
| CN104070098A (en) * | 2014-06-12 | 2014-10-01 | 宁波新冠联机电有限公司 | Multi-station punching device |
| CN204503944U (en) * | 2014-11-28 | 2015-07-29 | 嘉兴恒旭精密设备有限公司 | A kind of multiple-station rotation diel |
| CN104607535A (en) * | 2015-01-20 | 2015-05-13 | 无锡铸华机械科技有限公司 | Automatic punching special machine for automobile glass guide rail |
| CN206215759U (en) * | 2016-11-29 | 2017-06-06 | 思高特自动化设备（青岛）有限公司 | A kind of metal plate punching mould |
| CN207086711U (en) * | 2017-08-15 | 2018-03-13 | 聊城市博源节能科技有限公司 | The decompressor of stamping parts of automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107262608B (en) | 2023-10-10 |
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