CN107570600A - A kind of diel for auto parts machinery automatic stocking - Google Patents
A kind of diel for auto parts machinery automatic stocking Download PDFInfo
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- CN107570600A CN107570600A CN201710993550.1A CN201710993550A CN107570600A CN 107570600 A CN107570600 A CN 107570600A CN 201710993550 A CN201710993550 A CN 201710993550A CN 107570600 A CN107570600 A CN 107570600A
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- auto parts
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Abstract
The invention discloses a kind of diel for auto parts machinery automatic stocking, including two bottom plates and top plate be arrangeding in parallel, in addition to it is located at the steady elevating mechanism between bottom plate and top plate, the buffer gear located at top plate bottom and the automatic pushing mechanism located at base plate interior；The steady elevating mechanism includes two groups of hydraulic cylinders and location-plate being vertically arranged at the top of bottom plate, wherein two groups of hydraulic cylinders and location-plate are located at the both sides of top plate, U-shaped frame is installed on the top piston bar of hydraulic cylinder, the inner rotation of U-shaped frame is provided with pulley, two groups of steel cables are wound with pulley, and one end of steel cable is correspondingly connected to the top both sides of bottom plate, the other end of steel cable is correspondingly connected to the both sides of top plate, the both sides of top plate are also rotatablely equipped with gear, and location-plate is equipped with rack close to the side of top plate.The present invention is reasonable in design, and punching precision is high, and protection auto parts machinery is without damage, realizes the purpose of automatic stocking, improves the ram efficiency and crudy of auto parts machinery.
Description
Technical field
The present invention relates to Stamping Die Technology field, more particularly to a kind of stamping die for auto parts machinery automatic stocking
Tool.
Background technology
Current high-strength steel, super-high strength steel realize the lightweight of vehicle well, improve the impact strength and peace of vehicle
Full performance, therefore as the important development direction of automotive steel.But with the raising of plate intensity, traditional cold punching technology exists
Fracture phenomena is easily produced in forming process, the processing technology requirement of high-strength steel sheet can not be met.It can not meet to be molded bar
In the case of part, the hot press-formed technology of ultrahigh-strength steel plates is gradually studied in the world at present.The technology be combine shaping,
Heat transfer and a kind of new technology of tissue inter-variable, mainly using under high temperature austenite state, the plasticity increase of plate, surrender is by force
The characteristics of degree reduces, the technique being formed by mould.
The existing punching die structure for auto parts machinery automatic stocking is complicated, and performance is more single, exist with
Lower shortcoming：
1st, the direct punching press of drill bit generally is utilized, easily auto parts machinery is caused to damage in process, and be vulnerable to
Extraneous vibration force influences to cause the precision of punching press to reduce；
2nd, it is relatively complicated generally using manually carrying out discharging, and take time and effort, the processing for influenceing auto parts machinery is imitated
Rate, in addition, the diel of some automatic stockings of in the market is usually to set multiple lifting bodies, and pushed up using multiple drivings
The driving equipment for rising mechanism works simultaneously, and this mode is difficult to ensure that synchronism during multiple lifting body work, and cost
It is higher, using above having some limitations.
Therefore, it is used to solve the above problems we have proposed a kind of diel for auto parts machinery automatic stocking.
The content of the invention
It is low based on punching precision existing for background technology, damage easily is produced to auto parts machinery, and can not machine
After carry out automatic stocking, influence the technical problem of diel processing efficiency, the present invention propose it is a kind of be used for auto parts machinery from
The diel of dynamic pusher.
A kind of diel for auto parts machinery automatic stocking proposed by the present invention, including two bottom plates be arrangeding in parallel
And top plate, bottom plate are located at the underface of top plate, in addition to located at the steady elevating mechanism between bottom plate and top plate, located at top plate bottom
The buffer gear in portion and the automatic pushing mechanism located at base plate interior；
The steady elevating mechanism includes two groups of hydraulic cylinders and location-plate being vertically arranged at the top of bottom plate, wherein two groups of liquid
Cylinder pressure and location-plate are located at the both sides of top plate, and U-shaped frame, the inner rotation peace of U-shaped frame are provided with the top piston bar of hydraulic cylinder
Equipped with pulley, be wound with two groups of steel cables on pulley, and one end of steel cable is correspondingly connected to the top both sides of bottom plate, steel cable it is another
End is correspondingly connected to the both sides of top plate, and the both sides of top plate are also rotatablely equipped with gear, and location-plate is all provided with close to the side of top plate
There is the rack being vertically arranged, and rack and pinion engages；
The crown center position of the bottom plate is provided with die shoe, and the centre position of the bottom plate and die shoe offers mutually
The blanking port of connection, the pusher chamber set around blanking port and the power cavity positioned at pusher chamber side are additionally provided with bottom plate, its
Middle pusher chamber connects with power cavity, and automatic pushing mechanism is located at pusher intracavitary, and automatic pushing mechanism includes four and slided with die shoe
The pusher post of dynamic connection, pusher intracavitary are additionally provided with guide rod and screw rod positioned at pusher post both sides, connected between guide rod and screw rod
The portable plate being fixedly connected with pusher post is connected to, and portable plate and screw flight vertical connection, pusher intracavitary are additionally provided with first and led
Wheel group, the power cavity is interior to be provided with the second guide wheel group and the 3rd guide wheel group, the first guide wheel group, the second guide wheel group and the 3rd guide wheel group
It is connected with conveyer belt in turn.
Preferably, the buffer gear includes limiting plate, bumper post and spring, and wherein limiting plate is fixedly installed in top plate
Bottom centre position, limiting plate connect with bumper post vertical sliding motion, and spring housing is located at the outside of bumper post, and the both sides of top plate are opened
One end provided with through hole, and bumper post is extended in through hole, and the bottom centre position of limiting plate is installed with drift.
Preferably, horizontally disposed pressing plate is provided between the limiting plate and die shoe, and buffer gear is located at limiting plate
Between pressing plate, the two bottom sides of pressing plate are equipped with limited block, and the bottom of limited block is provided with moving contact, the top of the die shoe
Both sides offer stopper slot, static contact are provided with the inwall of stopper slot, and static contact is engaged with moving contact.
Preferably, the both sides of the limiting plate are equipped with circular hole, and bumper post is T-shaped structure, the vertical cylinder of bumper post
One end is extended in through hole through circular hole, and the horizontal column of bumper post and the inwall of through hole are slidably connected, the horizontal columns of bumper post
Body width is more than the diameter of circular hole.
Preferably, the bottom both sides of the top plate are equipped with the guide pin bushing being vertically arranged, and the top both sides of the bottom plate are all provided with
There is guide pillar, and one end of guide pillar extends to the inside of guide pin bushing, and steel ball bushing is provided between guide pillar and guide pin bushing.
Preferably, the pusher chamber is loop configuration, and power cavity is rectangle structure, the second guide wheel group and the 3rd guide wheel group
It is made up of respectively two guide wheels, the inside of power cavity is additionally provided with motor, and the output shaft of motor is led with one of them
Wheel connection.
Preferably, first guide wheel group is made up of four guide wheels, wherein square structure is formed between four guide wheels, and
Four guide wheels correspond to be fixedly connected with one end of screw rod respectively, and the inwall of the other end and pusher chamber of screw rod is slidably connected.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, by hydraulic cylinder drive U-shaped frame move up and down so that top plate steel cable pulling lower band moving gear on rack
Reciprocating rolling, the purpose of steady punching press is realized, coordinate guide pillar to be slided up and down in guide pin bushing, further improve the diel campaign
During smoothness；
2nd, put buffer gear by setting up separately in punch, using bumper post under the effect of elasticity it is up and down, and promote
Limiting plate jacks up upwards, alleviate drift in punching course to caused by auto parts machinery damage and the external world caused by vibration force,
Improve the crudy of punching press precision and auto parts machinery；
3rd, by setting automatic pushing mechanism, multiple guide wheel groups and screw rod is driven to rotate simultaneously using a driving equipment,
So that portable plate promotes pusher post elevating movement under the rotary power of screw thread, and it is time saving and energy saving without manually discharging, realize
The purpose of automatic stocking, and cost is low, ensures that multiple pusher posts are synchronized with the movement, disposably automobile can be matched somebody with somebody after the completion of punching press
Part carries out pusher processing, improves ram efficiency.
The present invention is reasonable in design, simple to operate, and punching precision is high, and protection auto parts machinery is without damage, realizes automatic stocking
Purpose, improve the ram efficiency and crudy of auto parts machinery.
Brief description of the drawings
Fig. 1 is a kind of main structure diagram of diel for auto parts machinery automatic stocking proposed by the present invention；
Fig. 2 is that a kind of main view of diel for auto parts machinery automatic stocking proposed by the present invention dissects structural representation
Figure；
Fig. 3 is structure for amplifying signal at a kind of A of diel for auto parts machinery automatic stocking proposed by the present invention
Figure；
Fig. 4 is that a kind of vertical view of the bottom plate of diel for auto parts machinery automatic stocking proposed by the present invention dissects knot
Structure schematic diagram.
In figure：1 bottom plate, 2 top plates, 31 hydraulic cylinders, 32 U-shaped frames, 33 pulleys, 34 steel cables, 35 gears, 36 racks, 37 positioning
It is plate, 4 guide pin bushings, 5 guide pillars, 6 die shoes, 71 limiting plates, 72 through holes, 73 bumper posts, 74 springs, 75 drifts, 81 pressing plates, 82 spacing
Block, 83 moving contacts, 84 stopper slots, 85 static contacts, 91 blanking ports, 92 pusher chambers, 93 pusher posts, 94 guide rods, 95 screw rods, 96 are lived
Dynamic plate, 101 power cavities, 102 the 3rd guide wheel groups, 103 second guide wheel groups, 104 first guide wheel groups, 105 conveyer belts.
Embodiment
The present invention is made with reference to specific embodiment further to explain.
Embodiment
Reference picture 1-4, a kind of diel for auto parts machinery automatic stocking, including two bottom plates 1 be arrangeding in parallel
With top plate 2, bottom plate 1 is located at the underface of top plate 2, in addition to located at the steady elevating mechanism between bottom plate 1 and top plate 2, be located at
The buffer gear and the automatic pushing mechanism inside bottom plate 1 of the bottom of top plate 2；
Steady elevating mechanism includes two groups of hydraulic cylinders 31 and location-plate 37 for being vertically arranged to the top of bottom plate 1, wherein two groups
Hydraulic cylinder 31 and location-plate 37 are located at the both sides of top plate 2, and U-shaped frame 32, U-shaped frame 32 are provided with the top piston bar of hydraulic cylinder 31
Inner rotation pulley 33 is installed, two groups of steel cables 34 are wound with pulley 33, and one end of steel cable 34 is correspondingly connected to bottom plate 1
Top both sides, the other end of steel cable 34 is correspondingly connected to the both sides of top plate 2, and the both sides of top plate 2 are also rotatablely equipped with gear
35, location-plate 37 is equipped with the rack 36 being vertically arranged close to the side of top plate 2, and rack 36 engages with gear 35；
The crown center position of bottom plate 1 is provided with die shoe 6, and the centre position of bottom plate 1 and die shoe 6 offers interconnected
Blanking port 91, the pusher chamber 92 set around blanking port 91 and the power positioned at the side of pusher chamber 92 are additionally provided with bottom plate 1
Chamber 101, wherein pusher chamber 92 connect with power cavity 101, and in pusher chamber 92, automatic pushing mechanism includes automatic pushing mechanism
Four pusher posts 93 being slidably connected with die shoe 6, the He of guide rod 94 positioned at the both sides of pusher post 93 is additionally provided with pusher chamber 92
Screw rod 95, the portable plate 96 being fixedly connected with pusher post 93, and portable plate 96 and spiral shell are connected between guide rod 94 and screw rod 95
The screw thread vertical connection of bar 95, the first guide wheel group 104 is additionally provided with pusher chamber 92, the He of the second guide wheel group 103 is provided with power cavity 101
3rd guide wheel group 102, the first guide wheel group 104, the second guide wheel group 103 and the 3rd guide wheel group 102 are connected with conveyer belt 105 in turn.
In the present embodiment, auto parts machinery is positioned over the top of die shoe 6, is driven by hydraulic cylinder 31 and is moved down in U-shaped frame 32
It is dynamic so that top plate 2 steel cable 34 pulling lower band moving gear 35 on rack 36 reciprocating rolling, realize the purpose of steady punching press,
Coordinate guide pillar 5 to be slided up and down in guide pin bushing 4, further improve the smoothness in the diel motion process, utilize drift 75
Stamping process is carried out to auto parts machinery through pressing plate 81, waste material drops at blanking port 91 caused by punching press；
Buffer gear includes limiting plate 71, bumper post 73 and spring 74, and wherein limiting plate 71 is fixedly installed in the bottom of top plate 2
Centre position is held, limiting plate 71 connects with the vertical sliding motion of bumper post 73, and spring 74 is sheathed on the outside of bumper post 73, top plate 2
Both sides offer through hole 72, and one end of bumper post 73 is extended in through hole 72, and the bottom centre position of limiting plate 71 is fixed
Drift 75 is installed, horizontally disposed pressing plate 81 is provided between limiting plate 71 and die shoe 6, and buffer gear is located at limiting plate 71
Between pressing plate 81, the both sides of limiting plate 71 are equipped with circular hole, and bumper post 73 is T-shaped structure, the vertical cylinder of bumper post 73
One end is extended in through hole 72 through circular hole, and the inwall of the horizontal column and through hole 72 of bumper post 73 is slidably connected, bumper post 73
Horizontal column width be more than circular hole diameter, play spacing effect, using bumper post 73 spring 74 elastic effect,
It is up and down under in through hole 72, and promote limiting plate 71 to jack up upwards, alleviate drift 75 and auto parts machinery is made in punching course
Into damage and the external world caused by vibration force, improve the crudy of punching press precision and auto parts machinery.
The bottom both sides of top plate 2 are equipped with the guide pin bushing 4 being vertically arranged, and the top both sides of bottom plate 1 are equipped with guide pillar 5, and lead
One end of post 5 extends to the inside of guide pin bushing 4, and steel ball bushing is provided between guide pillar 5 and guide pin bushing 4, and guide pillar 5 can be on guide pin bushing 4 be interior
Lower slider, improve the smoothness in the diel motion process.
Pusher chamber 92 is loop configuration, and power cavity 101 is rectangle structure, the second guide wheel group 103 and the 3rd guide wheel group 102
Be made up of respectively two guide wheels, the inside of power cavity 101 is additionally provided with motor, and the output shaft of motor and one of them
Guide wheel is connected, and the first guide wheel group 104 is made up of four guide wheels, wherein square structure is formed between four guide wheels, and four are led
Wheel corresponds to be fixedly connected with one end of screw rod 95 respectively, and the inwall of the other end and pusher chamber 92 of screw rod 95 is slidably connected.
The two bottom sides of pressing plate 81 are equipped with limited block 82, and the bottom of limited block 82 is provided with moving contact 83, the top of die shoe 6
Portion both sides offer stopper slot 84, and static contact 85, and static contact 85 and the phase of moving contact 83 are provided with the inwall of stopper slot 84
Coordinate, in punching course, pressing plate 81 is moved down, and limited block 82 is injected in stopper slot 84, and static contact 85 contacts with moving contact 83, will
Punching press signal is transmitted to the control device of external, and control device control motor working signal prepares, once static contact 85
Separated with moving contact 83, and start motor after the 5-10 seconds after separation, using motor drive multiple guide wheel groups and
Screw rod 95 rotates simultaneously so that portable plate 96 promotes 93 liters of pusher post under the rotary power of screw thread and the orientation of guide rod 94
Drop motion, pusher post 93 boost the auto parts machinery for being positioned over the top of die shoe 6 through die shoe 6, without manually discharging,
It is time saving and energy saving, the purpose of automatic stocking is realized, and cost is low, ensures that multiple pusher posts 93 are synchronized with the movement, can be completed in punching press
Pusher processing disposably is carried out to auto parts machinery afterwards, improves ram efficiency.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
1. a kind of diel for auto parts machinery automatic stocking, including two bottom plates (1) and top plate (2) be arrangeding in parallel,
Bottom plate (1) is located at the underface of top plate (2), it is characterised in that
Also include located between bottom plate (1) and top plate (2) steady elevating mechanism, located at top plate (2) bottom buffer gear with
And located at the internal automatic pushing mechanism of bottom plate (1)；
The steady elevating mechanism includes two groups of hydraulic cylinders (31) and location-plate (37) being vertically arranged at the top of bottom plate (1), its
In two groups of hydraulic cylinders (31) and location-plate (37) be located at the both sides of top plate (2), U is installed on the top piston bar of hydraulic cylinder (31)
Shape frame (32), the inner rotation of U-shaped frame (32) are provided with pulley (33), and two groups of steel cables (34), and steel are wound with pulley (33)
One end of rope (34) is correspondingly connected to the top both sides of bottom plate (1), and the other end of steel cable (34) is correspondingly connected to the two of top plate (2)
Side, the both sides of top plate (2) are also rotatablely equipped with gear (35), and location-plate (37) is equipped with vertically close to the side of top plate (2)
The rack (36) of setting, and rack (36) engages with gear (35)；
The crown center position of the bottom plate (1) is provided with die shoe (6), and the centre position of the bottom plate (1) and die shoe (6) is opened
Provided with interconnected blanking port (91), the pusher chamber (92) set around blanking port (91) and position are additionally provided with bottom plate (1)
Power cavity (101) in pusher chamber (92) side, wherein pusher chamber (92) are connected with power cavity (101), and automatic pushing mechanism is set
In pusher chamber (92), automatic pushing mechanism includes four pusher posts (93) being slidably connected with die shoe (6), pusher chamber (92)
The guide rod (94) and screw rod (95) positioned at pusher post (93) both sides are inside additionally provided with, is connected between guide rod (94) and screw rod (95)
There are the portable plate (96) being fixedly connected with pusher post (93), and portable plate (96) and screw rod (95) screw thread vertical connection, pusher chamber
(92) the first guide wheel group (104) is additionally provided with, the second guide wheel group (103) and the 3rd guide wheel group are provided with the power cavity (101)
(102), the first guide wheel group (104), the second guide wheel group (103) and the 3rd guide wheel group (102) are connected with conveyer belt (105) in turn.
2. a kind of diel for auto parts machinery automatic stocking according to claim 1, it is characterised in that described slow
Punch mechanism includes limiting plate (71), bumper post (73) and spring (74), and wherein limiting plate (71) is fixedly installed in the bottom of top plate (2)
Centre position is held, limiting plate (71) connects with bumper post (73) vertical sliding motion, and spring (74) is sheathed on the outside of bumper post (73),
The both sides of top plate (2) offer through hole (72), and one end of bumper post (73) is extended in through hole (72), limiting plate (71)
Bottom centre position is installed with drift (75).
A kind of 3. diel for auto parts machinery automatic stocking according to claim 2, it is characterised in that the limit
Horizontally disposed pressing plate (81) is provided between position plate (71) and die shoe (6), and buffer gear is located at limiting plate (71) and pressing plate
(81) between, the two bottom sides of pressing plate (81) are equipped with limited block (82), and the bottom of limited block (82) is provided with moving contact (83), institute
The top both sides for stating die shoe (6) offer stopper slot (84), and static contact (85) is provided with the inwall of stopper slot (84), and
Static contact (85) is engaged with moving contact (83).
A kind of 4. diel for auto parts machinery automatic stocking according to claim 2, it is characterised in that the limit
The both sides of position plate (71) are equipped with circular hole, and bumper post (73) is T-shaped structure, and vertical cylinder one end of bumper post (73) is through circle
Hole is extended in through hole (72), and the inwall of the horizontal column and through hole (72) of bumper post (73) is slidably connected, bumper post (73)
Horizontal column width is more than the diameter of circular hole.
A kind of 5. diel for auto parts machinery automatic stocking according to claim 1, it is characterised in that the top
The bottom both sides of plate (2) are equipped with the guide pin bushing (4) being vertically arranged, and the top both sides of the bottom plate (1) are equipped with guide pillar (5), and
One end of guide pillar (5) extends to the inside of guide pin bushing (4), and steel ball bushing is provided between guide pillar (5) and guide pin bushing (4).
6. a kind of diel for auto parts machinery automatic stocking according to claim 1, it is characterised in that described to push away
Material chamber (92) is loop configuration, and power cavity (101) is rectangle structure, the second guide wheel group (103) and the 3rd guide wheel group (102) point
Be not made up of two guide wheels, the inside of power cavity (101) is additionally provided with motor, and the output shaft of motor and one of them
Guide wheel connects.
7. a kind of diel for auto parts machinery automatic stocking according to claim 1, it is characterised in that described
One guide wheel group (104) is made up of four guide wheels, wherein square structure is formed between four guide wheels, and four guide wheels correspond to respectively
It is fixedly connected with one end of screw rod (95), the inwall of the other end and pusher chamber (92) of screw rod (95) is slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710993550.1A CN107570600B (en) | 2017-10-23 | 2017-10-23 | A kind of stamping die for automobile parts automatic stocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710993550.1A CN107570600B (en) | 2017-10-23 | 2017-10-23 | A kind of stamping die for automobile parts automatic stocking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107570600A true CN107570600A (en) | 2018-01-12 |
| CN107570600B CN107570600B (en) | 2019-02-01 |
Family
ID=61037975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710993550.1A Active CN107570600B (en) | 2017-10-23 | 2017-10-23 | A kind of stamping die for automobile parts automatic stocking |
Country Status (1)
| Country | Link |
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| CN (1) | CN107570600B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108515569A (en) * | 2018-04-12 | 2018-09-11 | 宁波得晴电器科技有限公司 | Sealing ring moulding process |
| CN108971375A (en) * | 2018-07-04 | 2018-12-11 | 邢思义 | A kind of equipments machining die with self-emptying function |
| CN109483198A (en) * | 2019-01-03 | 2019-03-19 | 广西玉柴机器股份有限公司 | A kind of engine cylinder block lifting positioning device being suitable for different types of machines |
| CN111151653A (en) * | 2020-01-07 | 2020-05-15 | 杨士强 | Anti-rebound hardware stamping die |
| CN112658186A (en) * | 2021-01-20 | 2021-04-16 | 董子浩 | Hydraulic device for forming vehicle hub |
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| US20050044917A1 (en) * | 2003-08-25 | 2005-03-03 | Schroth James Gregory | Two temperature two stage forming |
| CN102500717A (en) * | 2011-10-20 | 2012-06-20 | 奇瑞汽车股份有限公司 | Ejection device |
| CN105436278A (en) * | 2015-12-16 | 2016-03-30 | 嵊州市银海机械有限公司 | Stamping press for producing refrigeration stampings |
| CN205887766U (en) * | 2016-08-12 | 2017-01-18 | 温州市凯宇五金有限公司 | Press molding device is used in copper sheet preparation |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4233868A (en) * | 1979-02-14 | 1980-11-18 | Bellaplast Gmbh | Apparatus for moving lightweight articles |
| US20050044917A1 (en) * | 2003-08-25 | 2005-03-03 | Schroth James Gregory | Two temperature two stage forming |
| CN102500717A (en) * | 2011-10-20 | 2012-06-20 | 奇瑞汽车股份有限公司 | Ejection device |
| CN105436278A (en) * | 2015-12-16 | 2016-03-30 | 嵊州市银海机械有限公司 | Stamping press for producing refrigeration stampings |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108515569A (en) * | 2018-04-12 | 2018-09-11 | 宁波得晴电器科技有限公司 | Sealing ring moulding process |
| CN108971375A (en) * | 2018-07-04 | 2018-12-11 | 邢思义 | A kind of equipments machining die with self-emptying function |
| CN109483198A (en) * | 2019-01-03 | 2019-03-19 | 广西玉柴机器股份有限公司 | A kind of engine cylinder block lifting positioning device being suitable for different types of machines |
| CN109483198B (en) * | 2019-01-03 | 2023-10-27 | 广西玉柴机器股份有限公司 | Engine cylinder body lifting and positioning device adaptable to various types |
| CN111151653A (en) * | 2020-01-07 | 2020-05-15 | 杨士强 | Anti-rebound hardware stamping die |
| CN112658186A (en) * | 2021-01-20 | 2021-04-16 | 董子浩 | Hydraulic device for forming vehicle hub |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107570600B (en) | 2019-02-01 |
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