CN109127885A - A kind of forging trimming correction system - Google Patents
A kind of forging trimming correction system Download PDFInfo
- Publication number
- CN109127885A CN109127885A CN201811106142.0A CN201811106142A CN109127885A CN 109127885 A CN109127885 A CN 109127885A CN 201811106142 A CN201811106142 A CN 201811106142A CN 109127885 A CN109127885 A CN 109127885A
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- trimming
- forging
- hydraulic
- mould bases
- correction component
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- 238000009966 trimming Methods 0.000 title claims abstract description 137
- 238000012937 correction Methods 0.000 title claims abstract description 72
- 238000005242 forging Methods 0.000 title claims abstract description 71
- 230000000694 effects Effects 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 13
- 238000005086 pumping Methods 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 16
- 238000013461 design Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/003—Simultaneous forming, e.g. making more than one part per stroke
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention relates to technical field of forging, and in particular to a kind of forging trimming correction system comprising: trimming corrects component, is corrected while for carrying out trimming and trimming to forging；First driving assembly is connect with trimming correction component, and the trimming correction component exerts a force to the forging under the action of first driving assembly；At least one set of hydraulic device, including multiple first hydraulic cylinders, the effect end of multiple first hydraulic cylinders acts on the trimming correction component under the driving of the second driving assembly and provides it back pressure, and second driving assembly and the connection quantity of the first hydraulic cylinder are adjustable.Forging trimming correction system of the invention can adjust back pressure according to different product, have flexible, strong applicability.
Description
Technical field
The present invention relates to technical field of forging, and in particular to a kind of forging trimming correction system.
Background technique
The typical forging technology process of forging is usual are as follows: blanking-flattening (bending)-blocking-finish-forging-trimming-school
Just, traditional handicraft is easy bending moment effect during forging trimming and generates straightness deformation, subsequent to need through hydraulic press point
Pressure alignment, but problems can be generated in alignment process: (1) residual stress is generated, Product Precision is influenced；(2) thermal recalibration
Process usually requires individual finishing equipment and Correction Die, not only increases investment, but also increase process and production cycle；
(3) for the forging being deformed, thermal recalibration only be can play a role, and cannot completely eliminate deformation.
Therefore, combination process is corrected using trimming, trimming and correcting process is concentrated in a pair of molds, in press machine
Trimming and the correcting process that product is completed in one stroke, can not only reduce the cost of investment of equipment and mold, improve production effect
Rate, and ensure that product straightness during trimming, it is more advantageous to promotion Product Precision.School is realized while trimming
Orthofunction, it is necessary to apply certain back pressure to forging during trimming, make forging during entire trimming all in by
Pressure condition, to control forging deformation.Early stage has in such a way that cylinder and disc spring apply back pressure, the nitrogen bullet of appearance in recent years
Spring replaces disc spring to realize back pressure function.
But the mode of above-mentioned application back pressure all haves the defects that certain, and wherein cylinder is easy to control, and price is lower, but strength
It is small unstable, it is difficult to meet the back pressure demand of the relatively large forging of long axis class；Disc spring is stablized, and can achieve required pressure, but due to
It deforms small, to meet trimming stroke and just multi-disc be needed to combine, therefore huge structure, it is desirable that have enough installation spaces；Nitrogen spring is steady
Fixed and strength is big, but to will cause self-heating serious due to frequently compressing, easy to damage, needs to be replaced frequently, in addition nitrogen spring itself
High price, therefore use cost is very high.
In addition, there are also a common disadvantages for above-mentioned three kinds of modes: once design complete, it can be achieved that back pressure once it is substantially permanent
It is fixed, it cannot be adjusted for different product, therefore lack flexibility, the trimming equipment for being not suitable for small lot multi-assortment production makes
With.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcome in the prior art forging carry out trimming timing back pressure
Substantially constant cannot be adjusted for different product, lack technological deficiency flexible, so that providing one kind can be according to different production
Product adjust back pressure, correct system with flexible, strong applicability forging trimming.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of forging trimming correction system, comprising:
Trimming corrects component, is corrected while for carrying out trimming and trimming to forging；
First driving assembly is connect with trimming correction component, and the trimming correction component is in first driving group
To the forging applied force under the action of part；
At least one set of hydraulic device, including multiple first hydraulic cylinders, the effect end of multiple first hydraulic cylinders is second
Act on trimming correction component under the driving of driving assembly and back pressure be provided it, and second driving assembly with it is described
The connection quantity of first hydraulic cylinder is adjustable.
In above-mentioned forging trimming correction system, further include set on first driving assembly and the trimming correction component it
Between mounting assembly, the first hydraulic cylinder pass through the mounting assembly after with the trimming correction component connect.
In above-mentioned forging trimming correction system, the first hydraulic cylinder is hydraulic die cushion plunger case, and by being set to the work
It is connected on the trimming correction component with the rod piece at end.
In above-mentioned forging trimming correction system, the hydraulic die cushion plunger case is provided with two rows, hydraulic die cushion plunger described in every row
The equal equidistantly distributed of cylinder, and quantity is unequal.
In above-mentioned forging trimming correction system, second driving assembly includes accumulator, pumping plant and pipeline, the accumulation of energy
Device and the hydraulic die cushion plunger case constitute closed circuit at work, and the accumulator passes through multiple connecting lines and each institute
It states hydraulic die cushion plunger case to be separately connected, and connecting line is equipped with regulating valve, the pumping plant passes through the pipeline and the accumulation of energy
Device connection, for the accumulator fuel feeding or therefrom emptying to adjust oil pressure.
In above-mentioned forging trimming correction system, the hydraulic device is two groups, the liquid in hydraulic device described in every group
Pressure pad plunger case is connect with an accumulator, and the back pressure that hydraulic device described in two groups provides is different.
It further include for monitoring between the hydraulic die cushion plunger case and the accumulator in above-mentioned forging trimming correction system
Oil liquid temperature temperature sensor.
In above-mentioned forging trimming correction system, the mounting assembly includes setting up separately to correct component axial sides in the trimming
The first mould bases and the second mould bases, be equipped with for the forging flash after trimming to be transported to predetermined position in second mould bases
Second hydraulic cylinder.
It further include set on the guiding between first mould bases and second mould bases in above-mentioned forging trimming correction system
Component.
In above-mentioned forging trimming correction system, the guidance set includes being symmetrically distributed in trimming correction component two sides
A pair of of guide post, first mould bases towards being equipped with the guide sleeve being adapted to the guide post on the end face of the second mould bases,
First mould bases moves back and forth under the action of first driving assembly along the guide post.
Technical solution of the present invention has the advantages that
1. forging trimming provided by the invention corrects system, comprising: trimming corrects component, for forging carry out trimming with
And it is corrected while trimming；First driving assembly is connect with trimming correction component, and the trimming correction component is in institute
It states and is exerted a force under the action of the first driving assembly to the forging；At least one set of hydraulic device, including multiple first hydraulic cylinders, it is multiple
The effect end of the first hydraulic cylinder acts on the trimming correction component under the driving of the second driving assembly and provides back to it
Pressure, and second driving assembly and the connection quantity of the first hydraulic cylinder are adjustable.Such structure design can pass through
The connection number and distribution of the second driving assembly and first hydraulic cylinder are configured, effectively applies different back pressures to be directed to different product
Power makes system have trimming correction that is flexible, being suitble to multiple product, to improve the applicability and practicability of system.
It further include being set to first driving assembly and the trimming school 2. forging trimming provided by the invention corrects system
Mounting assembly between positive component, the first hydraulic cylinder are connect after passing through the mounting assembly with trimming correction component.
The design of mounting assembly makes trimming correction component more easily install, dismantle and maintenance.
3. forging trimming provided by the invention corrects system, the first hydraulic cylinder is hydraulic die cushion plunger case, and by setting
Rod piece in the effect end is connected on the trimming correction component.First hydraulic cylinder is that the design of hydraulic die cushion plunger case uses
Effect is more preferable, and the design of rod piece keeps operating effect more preferable.
4. forging trimming provided by the invention corrects system, the hydraulic die cushion plunger case is provided with two rows, liquid described in every row
The equal equidistantly distributed of pressure pad plunger case, and quantity is unequal.Such design can be by configuring the number of hydraulic die cushion plunger case
And distribution, effectively apply back pressure to be directed to different product, effectively applies the corrected purpose of back pressure to realize.
5. forging trimming provided by the invention corrects system, the hydraulic device is two groups, in hydraulic device described in every group
The hydraulic die cushion plunger case connect with an accumulator, the back pressure that hydraulic device described in two groups provides is different.It is such to set
Meter can make different groups of hydraulic die cushion plunger case have different pressure, so that the different parts of complicated shape forging are applied
Back pressure is also different, realizes the trimming calibration function of more flexibility.
It further include for monitoring the hydraulic die cushion plunger case and the storage 6. forging trimming provided by the invention corrects system
The temperature sensor of oil liquid temperature between energy device.Since the frequent flowing of oil liquid between hydraulic die cushion plunger case and accumulator is easily made
It heats up at oil liquid, therefore the design of temperature sensor can make system monitor oil temperature in real time, and form closed-loop control, once detection
To high oil temperature, then the oil liquid that replacement hydraulic die cushion plunger case and accumulator inside recycle automatically makes oil temperature maintain reasonable fortune
In row section.
7. forging trimming provided by the invention corrects system, the mounting assembly includes setting up separately to correct component in the trimming
The first mould bases and the second mould bases of axial sides are equipped in second mould bases pre- for the forging flash after trimming to be transported to
Position the second hydraulic cylinder set.The design of second hydraulic cylinder, which facilitates, is transported to designated position for the overlap after trimming, reduces waste material
Accumulation.
8. forging trimming provided by the invention corrects system, further include set on first mould bases and second mould bases it
Between guidance set.The guidance set includes a pair of of the guide post for being symmetrically distributed in trimming correction component two sides, described
First mould bases direction is equipped with the guide sleeve being adapted to the guide post on the end face of the second mould bases, and first mould bases is described
It is moved back and forth under the action of first driving assembly along the guide post.The design of guidance set not only acts as guiding role, also rises
To support connection function, to improve the stability of system structure.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the forging trimming correction system in the embodiment of the present invention 1；
Fig. 2 is the arrangement schematic diagram for the hydraulic die cushion plunger case that forging trimming shown in FIG. 1 corrects system；
Fig. 3 is the two groups of first hydraulic cylinders and the second driving group in the forging trimming correction system in the embodiment of the present invention 2
The schematic illustration of part；
Description of symbols:
1- first hydraulic cylinder；2- sliding block；3- upper padding plate；The first mould bases of 4-；5- trimming corrects component；6- guiding
Column；The second mould bases of 7-；8- lower bolster；9- workbench.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
It as shown in Figs. 1-2, is a kind of specific embodiment of forging trimming correction system according to the present invention, it is described
Forging trimming correction system include: workbench 9, lower bolster 8, trimming correction component 5, the first driving assembly, the second driving assembly,
At least one set of hydraulic device, guidance set, mounting assembly and temperature sensor.
In the present embodiment, the lower bolster 8 is set on the workbench 9.
In the present embodiment, the trimming correction component 5 is used to carry out school while carrying out trimming and trimming to forging
Just, as shown in Figure 1, trimming correction component 5 includes the first trimming correction component and underlying second being located above
Trimming corrects component, first trimming correction component relative to second trimming correction component can along the vertical direction on move down
It is dynamic, to carry out corresponding trimming correction to the forging being placed on the second trimming correction component.
In the present embodiment, first driving assembly is connect with trimming correction component 5, and the trimming corrects component
5 exert a force to the forging under the action of first driving assembly.First driving assembly includes sliding block 2 and is set to institute
State the upper padding plate 3 of 2 bottom end of sliding block.
In the present embodiment, the hydraulic device is set as one group, and the hydraulic device includes multiple first hydraulic cylinders 1,
The first hydraulic cylinder 1 is set on the upper padding plate 3, and the effect end of multiple first hydraulic cylinders 1 is in the second driving assembly
Driving under act on trimming correction component 5 back pressure, and second driving assembly and first liquid be provided it
The connection quantity of cylinder pressure 1 is adjustable.Can by configuring the connection number and distribution of the second driving assembly and first hydraulic cylinder 1,
Effectively apply back pressure to be directed to different product, makes system that there is trimming correction that is flexible, being suitble to multiple product.
Further, the first hydraulic cylinder 1 is hydraulic die cushion plunger case, and the rod piece by being set to the effect end abuts
On trimming correction component 5, i.e., one end of rod piece is connect with the hydraulic die cushion of hydraulic die cushion plunger case, the other end and the first trimming
It corrects component 5 to connect, so that the back pressure that hydraulic die cushion plunger case provides, which is passed to the first trimming, by rod piece corrects component 5.
Further, the hydraulic die cushion plunger case is provided with two rows, the equal equidistantly distributed of hydraulic die cushion plunger case described in every row,
And quantity is unequal.As shown in Fig. 2, wherein there are five hydraulic die cushion plunger case, another row is provided with seven hydraulic die cushions for row setting
Plunger case, two rows of trapezoidal distributions of hydraulic die cushion plunger case, be if desired corrected trimming to shorter forging, then can be used
Between ten hydraulic die cushion plunger cases, trimming if desired is corrected to longer forging, then whole hydraulic die cushion plungers can be used
Cylinder, such design can be selected according to different needs using different hydraulic die cushion Combined Plunger-type Cylinders, so as to pass through
The number and distribution for configuring hydraulic die cushion plunger case, effectively apply back pressure to be directed to different product.
Further, second driving assembly includes accumulator, pumping plant and pipeline, the accumulator and the hydraulic die cushion
Plunger case constitutes closed circuit at work, and the accumulator passes through multiple connecting lines and each described hydraulic die cushion plunger case
It is separately connected, and connecting line is equipped with regulating valve, passes through the company of closing the control accumulator and hydraulic die cushion plunger rod of regulating valve
Connect quantity.The pumping plant is connect by the pipeline with the accumulator, be used for the accumulator fuel feeding or therefrom emptying with
Adjust oil pressure.
In the present embodiment, the mounting assembly is set between first driving assembly and trimming correction component 5,
The first hydraulic cylinder 1 is connect after passing through the mounting assembly with trimming correction component 5.Further, the installation group
Part includes the first mould bases 4 and the second mould bases 7 set up separately in trimming correction 5 axial sides of component；Specifically, first mould
Frame 4 is set to the lower end of the upper padding plate 3, and the first trimming correction component 5 is installed on first mould bases 4, the bar
Part passes through first mould bases 4 and connect with the first trimming correction component 5, and the sliding block 2 is suitable for driving upper padding plate 3, the first mould bases 4
And first trimming correction component 5 move up and down along the vertical direction, to drive the first trimming correction component 5 to being adapted for
On the predetermined position of trimming correction, component 5 is then corrected to first trimming by hydraulic die cushion plunger case and applies back pressure, is made
First trimming correction component 5 is corrected while carrying out trimming；The second trimming correction component 5 is installed on described second
On mould bases 7, second mould bases 7 is set on the lower bolster 8, is equipped in second mould bases 7 for by the forging after trimming
Part overlap is transported to the second hydraulic cylinder in predetermined position, and the second hydraulic cylinder is liftout tank, and the liftout tank passes through leverage knot
Ejecting force is passed to the specified parts in the second trimming correction component 5 by structure.
In the present embodiment, the guidance set is set between first mould bases 4 and second mould bases 7.Further
Ground, the guidance set include a pair of of the guide post 6 for being symmetrically distributed in the trimming correction 5 two sides of component, first mould bases 4
The guide sleeve being adapted to the guide post 6 is installed on towards the end face of the second mould bases 7, first mould bases 4 is described first
It is moved back and forth under the action of driving assembly along the guide post 6.The design of guidance set not only acts as guiding role, also acts as branch
Connection function is supportted, to improve the stability of system structure.
In the present embodiment, the temperature sensor is for monitoring between the hydraulic die cushion plunger case and the accumulator
Oil liquid temperature.Since the frequent flowing of oil liquid between hydraulic die cushion plunger case and accumulator easily causes oil liquid to heat up, temperature is passed
The design of sensor can make system monitor oil temperature in real time, and form closed-loop control, once detect high oil temperature, then automatic replacement
The oil liquid recycled inside hydraulic die cushion plunger case and accumulator, maintains oil temperature in reasonable traffic coverage.
When needing to carry out trimming timing to forging, selected to need to provide back pressure first according to the size of forging, size
The use number of the hydraulic die cushion plunger case of power, and then to control the size of the back pressure of hydraulic die cushion plunger case offer, then sliding block 2
Decline drives upper padding plate 3, the first mould bases 4 and the first trimming correction component 5 to drop to predetermined position and realize that trimming corrects.
The design of such structure can effectively apply back pressure by configuring the number and distribution of hydraulic die cushion plunger case to be directed to different product
Power makes system have trimming correction that is flexible, being suitble to multiple product, to improve the applicability and practicability of system.
Embodiment 2
Unlike the first embodiment, as shown in figure 3, the hydraulic device is set as two groups, in hydraulic device described in every group
The hydraulic die cushion plunger case connect with an accumulator, the back pressure that hydraulic device described in two groups provides is different, therefore different
The hydraulic die cushion plunger case of group can have different pressure, so that the back pressure applied to the different parts of complicated shape forging is not yet
Together, the trimming calibration function of more flexibility is realized.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of forging trimming corrects system characterized by comprising
Trimming corrects component (5), is corrected while for carrying out trimming and trimming to forging；
First driving assembly is connect with trimming correction component (5), and trimming correction component (5) is in first driving
It exerts a force under the action of component to the forging；
At least one set of hydraulic device, including multiple first hydraulic cylinders (1), the effect end of multiple first hydraulic cylinders (1) is
Trimming correction component (5) is acted under the driving of two driving assemblies, and back pressure, and second driving assembly are provided it
It is adjustable with the connection quantity of the first hydraulic cylinder.
2. forging trimming according to claim 1 corrects system, which is characterized in that further include being set to first driving group
Part and the trimming correction component (5) between mounting assembly, the first hydraulic cylinder (1) pass through the mounting assembly after with institute
State trimming correction component (5) connection.
3. forging trimming according to claim 2 corrects system, which is characterized in that the first hydraulic cylinder is hydraulic pad post
Plug cylinder, and the rod piece by being set to the effect end is connected on trimming correction component (5).
4. forging trimming according to claim 3 corrects system, which is characterized in that the hydraulic die cushion plunger case is provided with two
It arranges, the equal equidistantly distributed of hydraulic die cushion plunger case described in every row, and quantity is unequal.
5. forging trimming according to claim 4 corrects system, which is characterized in that second driving assembly includes accumulation of energy
Device, pumping plant and pipeline, the accumulator and the hydraulic die cushion plunger case constitute closed circuit at work, and the accumulator passes through
Multiple connecting lines are separately connected with hydraulic die cushion plunger case described in each, and connecting line is equipped with regulating valve, the pumping plant
It is connect by the pipeline with the accumulator, for the accumulator fuel feeding or therefrom emptying to adjust oil pressure.
6. forging trimming according to claim 5 corrects system, which is characterized in that the hydraulic device is two groups, every group
The hydraulic die cushion plunger case in the hydraulic device is connect with an accumulator, the back pressure that hydraulic device described in two groups provides
It is different.
7. forging trimming according to claim 5 corrects system, which is characterized in that further include for monitoring the hydraulic die cushion
The temperature sensor of oil liquid temperature between plunger case and the accumulator.
8. correcting system according to the described in any item forging trimmings of claim 2-7, which is characterized in that the mounting assembly packet
Include the first mould bases (4) and the second mould bases (7) set up separately in trimming correction component (5) axial sides, second mould bases (7)
In be equipped with second hydraulic cylinder for the forging flash after trimming to be transported to predetermined position.
9. forging trimming according to claim 8 corrects system, which is characterized in that further include being set to first mould bases
(4) guidance set between second mould bases (7).
10. forging trimming according to claim 9 corrects system, which is characterized in that the guidance set includes symmetrical point
A pair of of guide post (6) of the cloth in trimming correction component two sides, end face of first mould bases (4) towards the second mould bases (7)
On the guide sleeve being adapted to the guide post (6) is installed, first mould bases (4) is under the action of first driving assembly
It is moved back and forth along the guide post (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106142.0A CN109127885A (en) | 2018-09-20 | 2018-09-20 | A kind of forging trimming correction system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106142.0A CN109127885A (en) | 2018-09-20 | 2018-09-20 | A kind of forging trimming correction system |
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|---|---|---|---|---|
| GB2074913A (en) * | 1980-05-05 | 1981-11-11 | Gfm Fertigungstechnik | High-speed forging machine |
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| CN102744900A (en) * | 2012-06-15 | 2012-10-24 | 河南科技大学 | Multifunctional hydraulic machine |
| CN203044619U (en) * | 2012-12-14 | 2013-07-10 | 沃得重型机床（中国）有限公司 | Press machine hydraulic cushion driven by energy accumulators |
| CN103447338A (en) * | 2013-07-31 | 2013-12-18 | 霍山汇能汽车零部件制造有限公司 | Backward extrusion die and technique for processing helical body by applying backward extrusion die |
| CN206241179U (en) * | 2016-11-29 | 2017-06-13 | 上海爱知锻造有限公司 | A kind of bent axle trimming correcting integrating mould bases |
| CN209222992U (en) * | 2018-09-20 | 2019-08-09 | 北京机电研究所有限公司 | A kind of forging trimming correction system |
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