CN106238543A - Automobile door sheet metal part process units - Google Patents

Automobile door sheet metal part process units Download PDF

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Publication number
CN106238543A
CN106238543A CN201610725169.2A CN201610725169A CN106238543A CN 106238543 A CN106238543 A CN 106238543A CN 201610725169 A CN201610725169 A CN 201610725169A CN 106238543 A CN106238543 A CN 106238543A
Authority
CN
China
Prior art keywords
die
punch
sheet metal
automobile door
units
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
Application number
CN201610725169.2A
Other languages
Chinese (zh)
Inventor
王立新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Liufang Zhonglian Mechanical Share Co Ltd
Original Assignee
Anhui Liufang Zhonglian Mechanical Share Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Liufang Zhonglian Mechanical Share Co Ltd filed Critical Anhui Liufang Zhonglian Mechanical Share Co Ltd
Priority to CN201610725169.2A priority Critical patent/CN106238543A/en
Publication of CN106238543A publication Critical patent/CN106238543A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02Stamping using rigid devices or tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, 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
    • B21D43/003Positioning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, 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
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • B21D43/04Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/88Making other particular articles other parts for vehicles, e.g. cowlings, mudguards

Abstract

nullThe present invention relates to a kind of automobile door sheet metal part process units,Including cope match-plate pattern and lower bolster,Die it is provided with on cope match-plate pattern,The punch coordinated with die it is provided with on lower bolster,Die constitutes the upper of car door sheet metal component to be produced with the face that coordinates of punch、Compacted under face,Die be provided above guide plate,Guide plate is connected with actuating unit,Actuating unit drive die move up and down and with punch closer or far from,Spring it is provided with between guide plate and die,Power unit drives die close with punch,Until make that forming surface and compacted under face lean on nearest time,Implement the punch forming to automobile door plate,Die and punch near time,Under the effect of spring power,Realize the elastic extruding to plate,Spring can significantly absorb die and punch near time and the impulsive force that produces,Reduce the noise produced when punch coordinates with die,The situation that the sheet metal component avoiding impulsive force to cause shifts,Put forward the Forming Quality guaranteeing sheet metal component.

Description

Automobile door sheet metal part process units
Technical field
The present invention relates to automobile metal plate work production technical field, be specifically related to a kind of automobile door sheet metal part process units.
Background technology
In sheet metal component production process in automobile body covering piece part, it is roughly divided into shearing, punching press, bending etc. a series of Production process.Bar tabular panel beating raw material, before carrying out punching press, is cut into by above-mentioned automobile metal plate work first with plate shearing machine Blank to be punched, the blank rotary under utilizing artificial or plant equipment to shear is transported on pressing equipment carry out punching operation, Start stamping machine, thus blank is struck out the structure of needs.In prior art, implement the punching press of automobile door sheet metal part is set For including that cope match-plate pattern and lower bolster, cope match-plate pattern and lower bolster are respectively arranged with punch and die, sheet material to be punched is placed on On punch, utilizing drive mechanism to drive upper cavity die to move down close with punch, and then realize the punch forming to sheet material, above-mentioned is recessed The connection of mould and cope match-plate pattern mostly is and is rigidly connected, die and punch near during, great impulsive force can be produced, not only can Produce bigger noise, and being rigidly connected due to die and cope match-plate pattern, cause die and punch near time, impulsive force makes Sheet material produces certain displacement, and then is easy to so that sheet metal component is scrapped.
Summary of the invention
It is an object of the invention to: a kind of automobile door sheet metal part process units is provided, can reduce die and punch near time The impulsive force produced, reduces noise, improves the molding qualification rate of car door sheet metal component.
For achieving the above object, the technical solution used in the present invention is:
Automobile door sheet metal part process units, including cope match-plate pattern and lower bolster, described cope match-plate pattern is provided with die, described Being provided with the punch coordinated with die on lower bolster, described die constitutes car door sheet metal component to be produced with the face that coordinates of punch Upper and lower forming surface, described die be provided above guide plate, described guide plate is connected with actuating unit, actuating unit drive Die move up and down and with punch closer or far from, be provided with spring between described guide plate and die.
The present invention there is also techniques below feature:
Being provided with pilot hole on described guide plate, the upper face of described die is provided with guide post and constitutes guiding with pilot hole Coordinate.
Described guide post is constituted with the upper face of die threadeds, and is provided with guide sleeve in described pilot hole, described Guide post constitutes slide-and-guide with guide sleeve and coordinates, and the outer wall of guide sleeve constitutes to threaded with the inwall of pilot hole joins Close.
Being positioned at the outline perimeter of forming surface on die and be provided with shearing tool, the blade of described shearing tool points to punch The outline perimeter in compacted under face.
The feeding mouth side of device is provided with feed roller, is positioned at pressing equipment discharging opening side and is additionally provided with material receiving roller, institute Stating material receiving roller parallel with the roller core of feed roller, drive mechanism drives material receiving roller to rotate.
Being provided with material jacking mechanism on described lower bolster, described material jacking mechanism includes ejector beam, and described ejector beam is single with driving Unit connects, and drive unit drives ejector beam above-below direction moves and upper rod end stretches out or away from the compacted under face of punch.
The feeding mouth of device and discharging opening are provided above first, second sensor, and described first, second sensor is light Electric transducer, the test side of first, second sensor be directed vertically to lower section, first, second sensor acquisition signal transmission To control module, control module controls startup and the stopping of actuating unit.
The discharge end of feed roller is provided with support roller, and the roller core of described support roller is parallel with the roller core of feed roller, helps roller Above-below direction is arranged, and described drive mechanism, for driving motor, drives the output shaft of motor to be connected with the roller core of material receiving roller.
Being provided with the through hole passed for ejector beam on described punch, the lower end of ejector beam is connected with the piston rod of cylinder, gas Cylinder constitutes driver element, and the cylinder body of cylinder is fixed on the lower section of lower bolster, and the upper end of ejector beam is provided with rubber sleeve, described liftout Bar is arranged at intervals with multiple along the length direction of punch.
Described actuating unit is oil cylinder, and the cylinder body of described oil cylinder is fixed on cope match-plate pattern and piston rod downwardly extends and guides The upper face of plate is fixed, and described oil cylinder is arranged at intervals with multiple along the length direction of guide plate.
By technique scheme, the present invention has following technical effect that sheet material to be punched imports die and punch Between cooperation face, power unit is utilized to drive die to move down and close with punch, until making forming surface and compacted under Face lean on nearest time, thus implement punch forming to automobile door plate, above-mentioned die coordinates with guide plate, at die and punch Near time, under the effect of spring power, thus realize the elastic extruding to plate, utilize spring can significantly absorb die with Punch near time and the impulsive force that produces, reduce punch and die near time the noise that produces, it is to avoid the panel beating that impulsive force causes The situation of part displacement, improves the Forming Quality of automobile door sheet metal part.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the side schematic view of automobile door sheet metal part process units;
Fig. 2 is the front view of automobile door sheet metal part process units;
Fig. 3 is the structural representation of the guide sleeve of automobile door sheet metal part process units.
Detailed description of the invention
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 Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.
Below in conjunction with embodiment and detailed description of the invention, the present invention is further detailed explanation.
Automobile door sheet metal part process units, including cope match-plate pattern 10 and lower bolster 20, described cope match-plate pattern 10 is provided with recessed Mould 30, described lower bolster 20 is provided with the punch 40 coordinated with die 30, and described die 30 is constituted with the face that coordinates of punch 40 The upper and lower forming surface 31,41 of car door sheet metal component to be produced, described die 30 be provided above guide plate 33, described guide plate 33 are connected with actuating unit, and actuating unit drives die 30 to move up and down and with punch 40 closer or far from, described guide plate 33 And it is provided with spring 34 between die 30.
Sheet material importing die 30 to be punched coordinates between face with punch 40, utilizes power unit to drive die 30 downward Mobile and close with punch 40, until make that forming surface 31 and compacted under face 41 lean on nearest time, thus enforcement is to car door The punch forming of plate, above-mentioned die 30 coordinates with guide plate 33, die 30 and punch 40 near time, in spring 34 elastic force Effect under, thus realize the elastic extruding to plate, utilize spring 34 can significantly absorb die 30 and punch 40 near time and The impulsive force produced, reduce punch 40 and die 30 near time the noise that produces, it is to avoid the sheet metal component displacement that impulsive force causes Situation, improves the Forming Quality of automobile door sheet metal part.
As the preferred version of the present invention, for avoid die 30 and punch 40 near time cause die 30 to be positioned on spring 34 The displacement produced, described guide plate 33 is provided with pilot hole 331, the upper face of described die 30 be provided with guide post 301 with Pilot hole 331 constitutes guiding and coordinates.Utilize guide post 301 to coordinate with pilot hole 331, thus die 30 can be avoided to move down generation Shifting phenomena, and then guarantee the stamping forming precision of automobile door sheet metal part, the molding improving automobile door sheet metal part is qualified Rate.
Further, for reducing the abrasion that guide post 301 produces with pilot hole 331, described guide post 301 and die 30 Upper face constitutes threaded, is provided with guide sleeve 332, described guide post 301 and guide sleeve in described pilot hole 331 332 constitute slide-and-guide coordinates, and the outer wall of guide sleeve 332 constitutes threaded cooperation with the inwall of pilot hole 331.Work as guiding When sliding sleeve 332 weares and teares more serious, it is also convenient for the replacing of guide sleeve 332, in like manner, the easiest during guide post 301 serious wear Change.
As the scheme being more highly preferred to of the present invention, for improving the shaping efficiency of this automobile door sheet metal part, it is positioned at die On 30, the outline perimeter of forming surface 31 is provided with shearing tool 50, and the blade of described shearing tool 50 points to the compacted under of punch 40 The outline perimeter in face 41;
Treat that what the sheet material of cutter punching press imported die 30 and punch 40 coordinates between face, utilize power unit to drive die 30 move down and close with punch 40, thus utilize shearing tool 50 to implement the shearing to sheet material, when die 30 continues to move down, Until make that forming surface 31 and compacted under face 41 lean on nearest time, and then implement the punch forming to automobile door plate, above-mentioned cut Cut pressing equipment and integrate shearing, punching operation, it is possible to significantly improve the shaping efficiency of above-mentioned automobile door sheet metal part.
Further, for convenience of feeding intake in shear pressing equipment, the feeding mouth side of shear pressing equipment is provided with confession Material roller 60, is positioned at pressing equipment discharging opening side and is additionally provided with material receiving roller 70, and described material receiving roller 70 is flat with the roller core of feed roller 60 OK, drive mechanism drives material receiving roller 70 to rotate.Utilize drive mechanism to drive the rotation of material receiving roller 70, thus realize punching press back plate The collection of material waste material, drive mechanism drives the rotation of material receiving roller 70, is after die 30 rises, it is to avoid the rotation of material receiving roller 70 The interference that die 30 is produced.
For convenience of realizing ejecting the material after shearing punch forming, described lower bolster 20 is provided with material jacking mechanism, Described material jacking mechanism includes that ejector beam 81, described ejector beam 81 are connected with driver element, drive unit drives ejector beam about 81 Direction is moved and upper rod end stretches out or away from the compacted under face 41 of punch 40.Driver element action, so that ejector beam 81 Rise, and then the arrangements for automotive doors sheet material after molding is ejected compacted under face 41, facilitate operator by the sheet material after molding Eject.
For realizing the automatic production of equipment, the feeding mouth of described shear pressing equipment and discharging opening be provided above first, Second sensor 91,92, described first, second sensor 91,92 is photoelectric sensor, the inspection of first, second sensor 91,92 Surveying end and be directed vertically to lower section, what first, second sensor 91,92 gathered signal transmission controls to control module, control module The startup of actuating unit and stopping.Utilize the turnover of first, second above-mentioned sensor 91,92 detection sheet material, thus will The signal gathered feeds back to control unit, and then realizes the action of actuating unit.
For realizing stable output to sheet material raw material, it is ensured that sheet material is delivered to smoothly punch 40 and die 30 it Between, the discharge end of described feed roller 60 is provided with support roller 61, and the roller core of described support roller 61 is parallel with the roller core of feed roller 60, Helping roller 61 above-below direction to arrange, described drive mechanism, for driving motor 71, drives output shaft and the material receiving roller 70 of motor 71 Roller core connects.
Specifically, described punch 40 is provided with the through hole 401 passed for ejector beam 81, the lower end of ejector beam 81 and cylinder The piston rod of 82 connects, and cylinder 82 constitutes driver element, and the cylinder body of cylinder 82 is fixed on the lower section of lower bolster 20, for avoiding liftout The upper rod end of bar 81 scratches the surface of profiled member, and the upper end of described ejector beam 81 is provided with rubber sleeve 811, for guaranteeing profiled member The stability ejected, described ejector beam 81 is arranged at intervals with multiple along the length direction of punch 40.
For guaranteeing the Forming Quality of profiled member, described actuating unit is oil cylinder 21, and the cylinder body of described oil cylinder 21 is fixed on In template 10 and the upper face that downwardly extends with guide plate 33 of piston rod is fixed, described oil cylinder 21 is along the length side of guide plate 33 Multiple to being arranged at intervals with.
Above-described is only the preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art For, without departing from the concept of the premise of the invention, it is also possible to make some deformation and improvement, these broadly fall into the present invention Protection domain.

Claims (10)

1. automobile door sheet metal part process units, including cope match-plate pattern (10) and lower bolster (20), described cope match-plate pattern (10) is upper to be arranged There is die (30), described lower bolster (20) be provided with the punch (40) coordinated with die (30), it is characterised in that: described die (30) the upper and lower forming surface (31,41) of car door sheet metal component to be produced is constituted with the face that coordinates of punch (40), described die (30) Being provided above guide plate (33), described guide plate (33) is connected with actuating unit, and actuating unit drives and moves down on die (30) Dynamic and with punch (40) closer or far from, be provided with spring (34) between described guide plate (33) and die (30).
Automobile door sheet metal part process units the most according to claim 1, it is characterised in that: described guide plate sets on (33) Being equipped with pilot hole (331), the upper face of described die (30) is provided with guide post (301) and joins with pilot hole (331) composition guiding Close.
Automobile door sheet metal part process units the most according to claim 2, it is characterised in that: described guide post (301) with The upper face of die (30) constitutes threaded, is provided with guide sleeve (332), described guide post in described pilot hole (331) (301) constitute slide-and-guide with guide sleeve (332) to coordinate, the outer wall of guide sleeve (332) and the inwall structure of pilot hole (331) Become threaded cooperation.
4. according to the automobile door sheet metal part process units described in claim 1 or 2 or 3, it is characterised in that: it is positioned at die (30) The outline perimeter of upper forming surface (31) is provided with shearing tool (50), and the blade of described shearing tool (50) points to punch (40) The outline perimeter in compacted under face (41).
Automobile door sheet metal part process units the most according to claim 4, it is characterised in that: the feeding mouth side of device sets It is equipped with feed roller (60), is positioned at pressing equipment discharging opening side and is additionally provided with material receiving roller (70), described material receiving roller (70) and feed The roller core of roller (60) is parallel, and drive mechanism drives material receiving roller (70) to rotate.
6. according to the automobile door sheet metal part process units described in claim 1 or 2 or 3, it is characterised in that: described lower bolster (20) being provided with material jacking mechanism on, described material jacking mechanism includes that ejector beam (81), described ejector beam (81) are connected with driver element, Drive unit drives ejector beam (81) above-below direction moves and upper rod end stretches out or away from the compacted under face (41) of punch (40).
Automobile door sheet metal part process units the most according to claim 6, it is characterised in that: the feeding mouth of device and discharging Mouth is provided above first, second sensor (91,92), and described first, second sensor (91,92) is photoelectric sensor, the One, the test side of the second sensor (91,92) is directed vertically to lower section, and what first, second sensor (91,92) gathered signal passes Transporting to control module, control module controls startup and the stopping of actuating unit.
Automobile door sheet metal part process units the most according to claim 5, it is characterised in that: the discharge end of feed roller (60) Being provided with support roller (61), the roller core of described support roller (61) is parallel with the roller core of feed roller (60), helps roller (61) upper and lower To setting, described drive mechanism, for driving motor (71), drives the output shaft of motor (71) to be connected with the roller core of material receiving roller (70).
Automobile door sheet metal part process units the most according to claim 6, it is characterised in that: described punch (40) is upper to be arranged Having the through hole (401) passed for ejector beam (81), the lower end of ejector beam (81) is connected with the piston rod of cylinder (82), cylinder (82) Constituting driver element, the cylinder body of cylinder (82) is fixed on the lower section of lower bolster (20), and the upper end of ejector beam (81) is provided with rubber Set (811), described ejector beam (81) is arranged at intervals with multiple along the length direction of punch (40).
Automobile door sheet metal part process units the most according to claim 1, it is characterised in that: described actuating unit is oil Cylinder (21), the cylinder body of described oil cylinder (21) is fixed on cope match-plate pattern (10), and above and piston rod downwardly extends the upper plate with guide plate (33) Face is fixed, and described oil cylinder (21) is arranged at intervals with multiple along the length direction of guide plate (33).
CN201610725169.2A 2016-08-25 2016-08-25 Automobile door sheet metal part process units Pending CN106238543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610725169.2A CN106238543A (en) 2016-08-25 2016-08-25 Automobile door sheet metal part process units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610725169.2A CN106238543A (en) 2016-08-25 2016-08-25 Automobile door sheet metal part process units

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CN106238543A true CN106238543A (en) 2016-12-21

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CN201610725169.2A Pending CN106238543A (en) 2016-08-25 2016-08-25 Automobile door sheet metal part process units

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107350343A (en) * 2017-09-20 2017-11-17 太仓市华天冲压五金制品厂 A kind of Pneumatic stamping device of sheet metal component hole machined
CN107413936A (en) * 2017-09-20 2017-12-01 太仓市华天冲压五金制品厂 The Pneumatic stamping device and its method of work of a kind of sheet metal component hole machined
CN108787874A (en) * 2018-09-28 2018-11-13 麦特汽车服务股份有限公司 A kind of teaching car door panel moulding apparatus

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Publication number Priority date Publication date Assignee Title
CN202212479U (en) * 2011-08-30 2012-05-09 上海德真工贸有限公司 Forming die for machining instrument panel of left fixed bracket of automobile
CN202316792U (en) * 2011-12-02 2012-07-11 蔡芳华 Combined die
CN202527580U (en) * 2012-04-26 2012-11-14 福建永德利刀剪有限公司 Device for synchronously finishing steps of punching sheet, punching hole and printing mark of scissor blade
CN204431392U (en) * 2015-01-05 2015-07-01 苏州方林科技股份有限公司 Automatic cover position die cutting mechanism
CN205056827U (en) * 2015-10-12 2016-03-02 武汉捷众汽车零部件有限公司 Automatic ejecting device of die mould mould
CN105537421A (en) * 2015-12-17 2016-05-04 苏州恒泰金属制品有限公司 Blanking mould with high processing efficiency
CN205236776U (en) * 2015-12-08 2016-05-18 合肥美尔电器有限公司 Punch forming mould
CN105728532A (en) * 2016-04-20 2016-07-06 苏州鸿普精密模具有限公司 Stamping mechanism for automobile door lock catch production line
CN105750398A (en) * 2016-05-01 2016-07-13 无锡市杰夫精工机械有限公司 Automobile bracket forming die

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202212479U (en) * 2011-08-30 2012-05-09 上海德真工贸有限公司 Forming die for machining instrument panel of left fixed bracket of automobile
CN202316792U (en) * 2011-12-02 2012-07-11 蔡芳华 Combined die
CN202527580U (en) * 2012-04-26 2012-11-14 福建永德利刀剪有限公司 Device for synchronously finishing steps of punching sheet, punching hole and printing mark of scissor blade
CN204431392U (en) * 2015-01-05 2015-07-01 苏州方林科技股份有限公司 Automatic cover position die cutting mechanism
CN205056827U (en) * 2015-10-12 2016-03-02 武汉捷众汽车零部件有限公司 Automatic ejecting device of die mould mould
CN205236776U (en) * 2015-12-08 2016-05-18 合肥美尔电器有限公司 Punch forming mould
CN105537421A (en) * 2015-12-17 2016-05-04 苏州恒泰金属制品有限公司 Blanking mould with high processing efficiency
CN105728532A (en) * 2016-04-20 2016-07-06 苏州鸿普精密模具有限公司 Stamping mechanism for automobile door lock catch production line
CN105750398A (en) * 2016-05-01 2016-07-13 无锡市杰夫精工机械有限公司 Automobile bracket forming die

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107350343A (en) * 2017-09-20 2017-11-17 太仓市华天冲压五金制品厂 A kind of Pneumatic stamping device of sheet metal component hole machined
CN107413936A (en) * 2017-09-20 2017-12-01 太仓市华天冲压五金制品厂 The Pneumatic stamping device and its method of work of a kind of sheet metal component hole machined
CN108787874A (en) * 2018-09-28 2018-11-13 麦特汽车服务股份有限公司 A kind of teaching car door panel moulding apparatus
CN108787874B (en) * 2018-09-28 2019-01-01 麦特汽车服务股份有限公司 A kind of teaching car door panel moulding apparatus

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Application publication date: 20161221