CN105364434B - Forging die manufacture method - Google Patents
Forging die manufacture method Download PDFInfo
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- CN105364434B CN105364434B CN201510898520.3A CN201510898520A CN105364434B CN 105364434 B CN105364434 B CN 105364434B CN 201510898520 A CN201510898520 A CN 201510898520A CN 105364434 B CN105364434 B CN 105364434B
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- positioning
- mould
- connector
- tool
- submodule
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention relates to forging die manufacture method, its step includes：Load and stress distribution situation when designing unitary mould and calculating mold work；Suitable splicing seams position is selected according to Mechanical Data is obtained, unitary mould identical die cavity is formed after making all submodule tool splicings；Connector is designed according to Mechanical Data, it is desirable to which submodule tool is spliced into unitary mould by connector can meet design strength requirement；Material object is produced respectively, and carries out roughing, heat treatment, and plane and keyway to positioning are finished；First in positioning Plane Installation positioning key, used in positioning datum, other positions of then entering splicing and installation；The unitary mould spliced, and carry out pocket machining.Because submodule has smaller, its crudy is more prone to ensure, manufacturing cost is significantly reduced；And multiple submodule tools can be manufactured, and the mould process-cycle is also accordingly shortened simultaneously.
Description
Technical field
The present invention relates to the mould of forging, a kind of particularly manufacture method suitable for large-sized forging mould.
Background technology
Hot forging processing needs to use forging die, and forging die cavity has and the concavo-convex opposite correspondingly-shaped of forging, forging equipment
Pressure by blank be pressed into forging die in, you can obtain the forging of respective shapes.
With the development of FMT, the demand of large forgings is more and more, and its corresponding forging die size also accordingly increases
Greatly.Because the performance and dimension precision requirement of forging die are all very high, forging die size is bigger, and its product quality is more difficult to ensure that, system
Cause this higher.
The content of the invention
The technical problems to be solved by the invention are：A kind of forging die manufacture method is provided, big swage die processing is more held
Easily, and manufacturing cost reduce.
The technical solution adopted for the present invention to solve the technical problems is：
Forging die manufacture method, including the following steps that order is carried out：
A, design unitary mould, calculate mould operationally, the load and residual stress distribution feelings in three, space direction
Condition；
B, the splicing seams position being had according to the residual stress distribution situation obtained in step A, design submodule, splicing seams position
Avoid behind residual stress concentrations region, and the tool splicing of all submodules, formed and unitary mould identical mold cavity；
C, the load according to three directions in space obtained in step A, design submodule bottom surface of the tool at stitching position and
Material, shape and the specification of connector selected by side, it is desirable to whole using disclosure satisfy that after connector progress submodule tool splicing
The design strength requirement of mould operationally；
Plane when D, selection submodule tool splicing has the stitching portion for positioning plane in all submodules as positioning plane
Design Orientation keyway and positioning key；
E, the sub- mold design obtained according to step C, D, stud connector design and positioning key design, produce submodule tool, connect
Fitting and positioning key, and roughing and heat treatment are carried out to all submodules tool, connector and positioning key；
F, positioning spline, connector and positioning key to sub- mould are finished, to the positioning plane of sub- mould and its
He is finished Mosaic face, and positioning key is loaded into positioning spline, and is fixed positioning key with positioning spline with screw, then profit
All submodules tool is connected with connector；The mold cavity combined is processed, formed and unitary mould identical
Die cavity.
Further, the length of the unitary mould is more than the three times of width.
Further, the connector includes connecting plate and bolt, in the step F, using connector by all submodules
Tool is connected, and is arranged on connecting plate at the side face seam of two neighboring submodule tool, and with bolt by connecting plate and son
Mould side is fixed.
Further, in the step A, mould is calculated operationally, the load and residual stress point in three, space direction
Cloth situation, is by numerical simulation calculation.
The beneficial effects of the invention are as follows：Above-mentioned forging die manufacture method, is divided into several submodule tools by unitary mould and is manufactured,
Submodule tool can carry out installation fixation with key, connector, formed and unitary mould identical die cavity, due to sub- die size more
Small, its crudy is more prone to ensure, manufacturing cost is significantly reduced；And multiple submodule tools can be manufactured, and be made simultaneously
The mould process-cycle also accordingly shortens.
Brief description of the drawings
Fig. 1 be using the present invention method manufacture submodule tool splicing it is integral after schematic diagram；
Reference is in figure：Submodule tool 1, positioning plane 11, positioning key 2, connecting plate 3.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples：
Forging die manufacture method, including the following steps that order is carried out：
A, design unitary mould, calculate mould operationally, the load and residual stress distribution feelings in three, space direction
Condition；
B, the splicing seams position being had according to the residual stress distribution situation obtained in step A, design submodule, splicing seams position
Avoid behind residual stress concentrations region, and the tool splicing of all submodules, formed and unitary mould identical mold cavity；
C, the load according to three directions in space obtained in step A, design submodule bottom surface of the tool at stitching position and
Material, shape and the specification of connector selected by side, it is desirable to whole using disclosure satisfy that after connector progress submodule tool splicing
The design strength requirement of mould operationally；
Plane when D, selection submodule tool splicing has the stitching portion for positioning plane in all submodules as positioning plane
Design Orientation keyway and positioning key；
E, the sub- mold design obtained according to step C, D, stud connector design and positioning key design, produce submodule tool, connect
Fitting and positioning key, and roughing and heat treatment are carried out to all submodules tool, connector and positioning key；
F, positioning spline, connector and positioning key to sub- mould are finished, to the positioning plane of sub- mould and its
He is finished Mosaic face, and positioning key is loaded into positioning spline, and is fixed positioning key with positioning spline with screw, then profit
All submodules tool is connected with connector；The mold cavity combined is processed, formed and unitary mould identical
Die cavity.
The forging die manufacture method of the present invention, is particularly suitable for use in big swage die, the length for being especially adapted for use in unitary mould is
The big swage dies of strip the class more than three times of width.
Its basic process is, first design unitary mould as desired, then calculates the mould operationally, space
The load condition in three directions, and residual stress distribution situation, specific calculating process, preferably can use computer
Carry out numerical simulation calculation.
Then according to the distribution situation of residual stress, suitable submodule tool splicing seams position is selected, has all submodules
A unitary mould is formed after splicing, is that the mould being spliced into has and unitary mould identical die cavity.Stitching position is selected
Residual stress concentrations region is avoided, the destruction that deformed when mould is used in stitching portion is prevented.
Then according to the load in foregoing obtained three directions in space, shape, material, the connected mode of connector are designed
It is used for adjacent submodule tool connection is integral Deng, connector, and connector needs enough intensity makes submodule tool splicing
The design strength requirement of unitary mould operationally is disclosure satisfy that afterwards.
Plane when needing to choose submodule tool splicing is as positioning plane, and positioning plane is used to set positioning spline,
Positioning spline is used for the benchmark that subsequent child mould is processed and spliced, according to positioning spline Design Orientation key.
Designed according to foregoing sub- mold design, stud connector design and positioning key, produce submodule tool, connector and positioning
The material object of key, and roughing and heat treatment are carried out to all submodules tool, connector and positioning key.
Then the positioning spline that all submodules have is finished, connector and positioning key is finished, it is desirable to
Processing reaches design standard, then on the basis of positioning spline, and the positioning plane and other Mosaic faces to sub- mould carry out finishing
Work.
Positioning key is loaded into positioning spline, makes the accurate splicing of submodule tool, and consolidated positioning key with positioning spline with screw
It is fixed, recycle connector that all submodules tool is connected, now all submodule tools are spliced into an entirety, to the mould combined
Tool die cavity is processed, and forms the die cavity with unitary mould same size.
So far, it is a set of to have the unitary mould being spliced to form manufacture completion by submodule, because sub- die size is less than overall mould
Tool, in sub- die manufacture, the operating process such as forging, heat treatment, quality is easier to ensure that, and manufacturing cost is also more
It is low.The positioning plane of submodule tool is provided with positioning spline as processing and the benchmark installed, and has after ensure that submodule tool connection
There are enough dimensional accuracies.Fixation is attached using connector between submodule tool, the intensity of connector disclosure satisfy that mould makes
Used time performance requirement.
, can be individually to the block submodule when a certain piece of submodule tool is damaged due to having the form of splicing using submodule
Tool is repaired or changed, the reduction of forging die maintenance cost.
This forging die manufacture method, the length that is particularly suitable for use in is the elongated moulds more than three times of width.
For example shown in Fig. 1：In the embodiment, forging die material be 5CrNiMo mould steel, appearance profile size be 6900 ×
1500 × 600mm, overall growth bar shaped.
Using the forging die manufacture method of the present invention, design after unitary mould, unitary mould is calculated using digital simulation
Load and residual stress situation operationally, are defined as three sub- moulds 1 in Fig. 1 and are spliced, three sub- die shape wheels
Wide size is 2300 × 1500 × 600mm.
Positioning plane 11 is in the bottom surface of submodule tool 1, and the seam crossing of positioning plane 11 having in all submodules devises positioning key
Groove and corresponding positioning key 2, positioning spline and positioning key 2 are fixed using sunk screw；Has 1 side in two neighboring submodule
Face seam crossing devises connecting plate 3, and with bolt that connecting plate and submodule tool side is fixed.
Positioning key 2, connecting plate 3, sunk screw and the bolt material of design are adopted as 5CrNiMo mould steel, positioning key 2
Appearance profile size is 480 × 120 × 65mm, totally 2；The sunk screw nominal diameter φ 20mm of stationary positioned key 2, using thick
Pitch thread, totally 4；The appearance profile size of connecting plate 3 is 1760 × 410 × 188mm, totally 4；The bolt for installing connecting plate 3 is public
Claim diameter phi 42mm, using coarse thread, each connecting plate 3 sets 16 bolts.
Then according to previous designs, all submodule tools 1, connecting plate 3 and the material object of positioning key 2 are produced, and slightly add
Work and heat treatment, roughing surplus are 10mm.
The positioning spline, connector 3 and positioning key 2 of sub- mould 1 are finished, to the positioning plane 11 of sub- mould 1
Finished with the side of splicing, positioning key 2 is loaded into positioning spline, and fastened with sunk screw, then carry out side
The installation and fastening of connecting plate 3, mould splicing are completed.Finally the structure to mold cavity is finished, form it into it is whole
Mould identical die cavity.
Claims (4)
1. forging die manufacture method, it is characterised in that the following steps carried out including order：
A, design unitary mould, calculate mould operationally, the load and residual stress distribution situation in three, space direction；
B, the splicing seams position being had according to the residual stress distribution situation obtained in step A, design submodule, splicing seams position will be kept away
Open behind residual stress concentrations region, and the tool splicing of all submodules, formed and unitary mould identical mold cavity；
C, the load according to three directions in space obtained in step A, design submodule have the bottom surface and side at stitching position
Material, shape and the specification of selected connector, it is desirable to disclosure satisfy that overall mould after carrying out submodule tool splicing using connector
The design strength requirement of tool operationally；
Plane when D, selection submodule tool splicing has the stitching portion design for positioning plane in all submodules as positioning plane
Positioning spline and positioning key；
E, the sub- mold design obtained according to step C, D, stud connector design and positioning key design, produce submodule tool, connector
And positioning key, and roughing and heat treatment are carried out to all submodules tool, connector and positioning key；
F, positioning spline, connector and positioning key to sub- mould are finished, to the positioning plane of sub- mould and other spellings
Junction is finished, and positioning key is loaded into positioning spline, and is fixed positioning key with positioning spline with screw, the company of recycling
All submodules tool is connected by fitting；The mold cavity combined is processed, formed and unitary mould identical die cavity.
2. forging die manufacture method as claimed in claim 1, it is characterised in that the length of the unitary mould is three times of width
More than.
3. forging die manufacture method as claimed in claim 1 or 2, it is characterised in that the connector includes connecting plate and bolt,
In the step F, all submodules tool is connected using connector, is the side that connecting plate is arranged on to two neighboring submodule tool
Face seam crossing, and it is with bolt that connecting plate and submodule tool side is fixed.
4. forging die manufacture method as claimed in claim 3, it is characterised in that in the step A, calculates mould operationally,
The load and residual stress distribution situation in three, space direction, are by numerical simulation calculation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510898520.3A CN105364434B (en) | 2015-12-08 | 2015-12-08 | Forging die manufacture method |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201510898520.3A CN105364434B (en) | 2015-12-08 | 2015-12-08 | Forging die manufacture method |
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| CN105364434A CN105364434A (en) | 2016-03-02 |
| CN105364434B true CN105364434B (en) | 2017-09-15 |
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| CN107553792A (en) * | 2017-10-26 | 2018-01-09 | 东莞安力五金塑胶制品有限公司 | Large mold splices method |
| CN110524207A (en) * | 2019-09-10 | 2019-12-03 | 云南濮耐昆钢高温材料有限公司 | A kind of combinational processing method of irregular mold |
| CN112192162B (en) * | 2020-10-13 | 2022-07-01 | 上海科力机械制造有限公司 | Processing technology of side plate of printing machine |
| CN112692526A (en) * | 2020-12-18 | 2021-04-23 | 陕西宏远航空锻造有限责任公司 | Closed extrusion die machining method |
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| JP2534179B2 (en) * | 1992-03-11 | 1996-09-11 | 本田技研工業株式会社 | Press machine |
| CN101284294B (en) * | 2007-04-10 | 2010-04-21 | 上海电气集团上海电机厂有限公司 | Silicon steel sheet punching die blade blocks processing technique |
| CN103128174B (en) * | 2013-03-07 | 2015-07-01 | 沈阳化工大学 | Assembly die for cold stamping and forming of auto-body panels and design method of assembly die |
| CN104339185A (en) * | 2013-08-07 | 2015-02-11 | 江苏博俊工业科技股份有限公司 | Sectional machining structure of large stamping die set |
| CN104259788A (en) * | 2014-09-29 | 2015-01-07 | 安徽成飞集成瑞鹄汽车模具有限公司 | Machining method of mold insert |
| CN204657416U (en) * | 2015-03-31 | 2015-09-23 | 西华大学 | A kind of combined type Mould for casting ball |
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