CN207668292U - A kind of step deep hole axial workpiece diel - Google Patents
A kind of step deep hole axial workpiece diel Download PDFInfo
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- CN207668292U CN207668292U CN201721901217.5U CN201721901217U CN207668292U CN 207668292 U CN207668292 U CN 207668292U CN 201721901217 U CN201721901217 U CN 201721901217U CN 207668292 U CN207668292 U CN 207668292U
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Abstract
The utility model provides a kind of step deep hole axial workpiece diel, for to being processed as the step deep hole axial workpiece of blank using materials in the tube, diel has a molding chamber, shaping mold cavity has the first cylindrical cavity section and the second cylindrical cavity section being connected with each other, first cylindrical cavity section and the coaxial arrangement of the second cylindrical cavity section, second cylindrical cavity section internal diameter is more than the first cylindrical cavity section internal diameter, the outer diameter of second cylindrical cavity section internal diameter and blank matches, the length of first cylindrical cavity section is more than or equal to the aperture section depth of step deep hole in axial workpiece, the internal diameter of first cylindrical cavity section is more than or equal to the outer diameter of axial workpiece.Materials in the tube can be selected to be used as blank by the diel in this way and process step deep hole axial workpiece.Relative to round steel is selected, as Raw material processing step deep hole, pre-add part only need to carry out reaming under conditions of having bottom outlet, and the processing such as bore hole can greatly reduce difficulty of processing to avoid the drilling deep hole directly on round steel so in this way.
Description
Technical field
The present invention relates to technical field of mold, more particularly to a kind of step deep hole axial workpiece diel.
Background technology
Deep hole refers to the hole that hole depth is more than 5 with diameter ratio.Step deep hole axial workpiece as shown in Figure 1 is being added
Working hour usually selects round steel as blank, first processes the aperture of step deep hole then in processing step deep hole macropore.It is adopted when processing
It is processed with the mode of drilling, fraising, is processed in this way, cutter loss is big, processing efficiency is low, there are chip removal hardly possible, is not easy to cool down
The shortcomings that.Since aperture is small and hole depth, drill bit arm length, poor rigidity is easy broken drill, can not only make the production processed in this way
The concentricity of product is poor, serious or even meeting faulty part.
Utility model content
The technical problem to be solved by the present invention is to：How a kind of step deep hole axial workpiece diel is provided,
To reduce the difficulty of processing of step deep hole in axial workpiece.
In order to solve the above-mentioned technical problem, the utility model uses the following technical solution.
A kind of step deep hole axial workpiece diel, for the step deep hole axial workpiece using materials in the tube as blank
It is processed, there is a molding chamber, the shaping mold cavity to have the first cylindrical cavity section and second being connected with each other for diel
Cylindrical cavity section, the first cylindrical cavity section and the coaxial arrangement of the second cylindrical cavity section, the second cylindrical cavity section internal diameter are more than described
First cylindrical cavity section internal diameter, the outer diameter of the second cylindrical cavity section internal diameter and the blank match, the first cylindrical cavity section
Length be more than or equal to the aperture section depth of step deep hole in the axial workpiece, the internal diameter of the first cylindrical cavity section is more than etc.
In the outer diameter of the axial workpiece.
In this way, the mold is mainly used for punching press pipe fitting, the prefabricated component of an axial workpiece with step deep hole is obtained, is kept away
Exempt from that round steel is directly used to carry out depth drill, reduces difficulty of processing.The diel is in use, blank is stretched into shaping mold cavity simultaneously
Carry out punching press so that the position that the aperture section of axial workpiece is corresponded on blank is stamped to stretch into the first cylindrical cavity section and squeezes
Molding；Specific second cylindrical cavity section coordinates with blank, and the circumferential extrusion billet of the first cylindrical cavity section compression completes undergauge.It has squeezed
A prefabricated component is obtained after, and the processing that step deep hole axial workpiece is completed in reaming etc. can be carried out directly on prefabricated component.Wherein
The outer diameter of second cylindrical cavity section internal diameter and the blank matches, and referring to the blank can be with middle mould slide fit, blank when avoiding squeezing
It is radially expanded, specific second cylindrical cavity section internal diameter is equal to or micro- outer diameter more than blank.
Preferably, diel includes upper mold and middle mould, the upper mold, which has, is vertically provided with the first cylindrical cavity section, institute
The length for stating the first cylindrical cavity section is more than or equal to the aperture section depth of step deep hole in axial workpiece, the first cylindrical cavity section
Internal diameter is more than or equal to the outer diameter of the axial workpiece, is less than the outer diameter of blank, the second cylindrical cavity section, institute are provided on the middle mould
State mould during mould includes left mould and is right, the second cylindrical cavity section runs through the middle mould, the second cylindrical cavity section internal diameter with
The outer diameter of the blank matches, and the left mold has the first die cavity, it is described it is right in mold have the second die cavity, the left mould
It molds, is enclosed in the second cylindrical cavity section with mould in the right side, the length of the second cylindrical cavity section is less than or equal to institute
State the big hole section depth of step deep hole in axial workpiece.
In this way, mould is plate, mould is column in left mould and the right side.By the vertical placement of blank, by heating
The bringing-up section of blank is arranged, and middle mould is vertically arranged, and left mould is bonded with mould in the right side with the peripheral surface of blank, is clamped, middle mould
Height is less than or equal to big hole section depth in axial workpiece, passes through the bringing-up section of upper mold extrusion billet, the first cylindrical cavity section of upper mold
Positioned at vertical direction, the first cylindrical cavity section and blank coaxial line push upper mold and so that upper mold lower end and middle mould upper end offset completion
Punching press.Wherein upper mold has hydraulic press drive more.
Preferably, further including lower die, the lower die upper surface is a horizontal location face, and positioning is provided in the lower die
Mandrel, vertically the horizontal location is arranged upwardly the positioning core axle, and the positioning core axle diameter is less than or equal to the blank
Internal diameter, the positioning core axle stretch out height of the height more than the middle mould of the lower die, are less than or equal in the axial workpiece
The upper surface of the depth of big hole section in step deep hole, the positioning core axle is a horizontal plane, the upper surface of the lower die and middle mould
One side far from the upper mold coordinates.
In this way, the setting of positioning core axle, can facilitate positioning blank, in extruded hole, reinforces the rigidity of blank, reduce and become
Shape amount, prevents buckling phenomenon.When squeezing flat-bottom hole, mandrel plays support, bottom can be made to strike out flat.
Preferably, a forming core shaft, the forming core shaft vertically positioning is arranged in the upper surface of the positioning core axle
The outer diameter of the upper surface of mandrel and co-axial setting, the forming core shaft is less than or equal to step deep hole in the axial workpiece
The internal diameter of aperture section, the length of the forming core shaft are more than or equal to the aperture section depth of the step deep hole.
In this way, the setting of forming core shaft can be in punching press, it is ensured that one end internal diameter being extruded will not be bent, and be applicable in this way
The aperture longer situation in axial workpiece stepped hole can pass through the peripheral surface of the forming core shaft when specifically squeezing, it is ensured that should
The endoporus of pressed end is regular circular hole, facilitates processing.In modulus, by the way that the core can be knocked out along forming core shaft axial force distribution
Axis completes demoulding.
Preferably, being provided with bellmouth in the upper mold, the bellmouth is connected with the first cylindrical cavity section, described
Bellmouth and the first cylindrical cavity section coaxial line, the outside diameter of the bellmouth and the second cylindrical cavity section internal diameter phase
Together, the end diameter of the bellmouth is identical as the internal diameter of the first cylindrical cavity section, and the bellmouth big end is on described
Mould connect the end face of side with the middle mould.
In this way, there is the conical surface of bellmouth certain guiding role, compression blank heating section periphery to make the blank of bringing-up section
It is imported in the first cylindrical cavity along the conical surface, crimp, avoids the first cylindrical cavity and directly squeeze generation cutting, it is ensured that blank quilt
The internal diameter of one end of compression becomes smaller.
Description of the drawings
Fig. 1 is the step deep hole axial workpiece described in background technology；
Fig. 2 is a kind of step deep hole axial workpiece diel disclosed in this invention, and blank is located therein.
Wherein, 1 it is upper mold, 2 be middle mould, 201 be left mould, 202 be mould in the right side, 3 be lower die, 301 is positioning core axle.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings and examples.
It please refers to Fig.1 and Fig. 2, Fig. 1 is step deep hole axial workpiece described in background technology, Fig. 2 is public affairs of the invention
A kind of step deep hole axial workpiece diel opened, blank are located therein.
A kind of step deep hole axial workpiece diel, for the step deep hole axial workpiece using materials in the tube as blank
It is processed, there is a molding chamber, shaping mold cavity to have the first cylindrical cavity section being connected with each other and the second cylinder for diel
Chamber section, the first cylindrical cavity section and the coaxial arrangement of the second cylindrical cavity section, the second cylindrical cavity section internal diameter are more than the first cylindrical cavity section internal diameter,
The outer diameter of second cylindrical cavity section internal diameter and blank matches, and the length of the first cylindrical cavity section is more than or equal to ladder depth in axial workpiece
The aperture section depth in hole, the internal diameter of the first cylindrical cavity section are more than or equal to the outer diameter of axial workpiece.
In this way, the mold is mainly used for punching press pipe fitting, the prefabricated component of an axial workpiece with step deep hole is obtained, is kept away
Exempt from that round steel is directly used to carry out depth drill, reduces difficulty of processing.The diel is in use, blank is stretched into shaping mold cavity simultaneously
Carry out punching press so that the position that the aperture section of axial workpiece is corresponded on blank is stamped to stretch into the first cylindrical cavity section and is squeezed into
Type；Specific second cylindrical cavity section coordinates with blank, and the circumferential extrusion billet of the first cylindrical cavity section compression completes undergauge.It squeezes and completes
After obtain a prefabricated component, can be carried out directly on prefabricated component reaming etc. complete step deep hole axial workpiece processing.Wherein
The outer diameter of two cylindrical cavity section internal diameters and blank matches, and referring to blank can be with middle mould slide fit, and blank is radially expanded when avoiding squeezing, and is had
Body the second cylindrical cavity section internal diameter is equal to or micro- outer diameter more than blank.
In the present embodiment, diel includes upper mold 1 and middle mould 2, and upper mold 1, which has, is vertically provided with the first cylindrical cavity
Section, the length of the first cylindrical cavity section are more than or equal to the aperture section depth of step deep hole in axial workpiece, the first cylindrical cavity section it is interior
Diameter is more than or equal to the outer diameter of axial workpiece, is less than the outer diameter of blank, and the second cylindrical cavity section is provided on middle mould 2, and middle mould 2 includes a left side
Middle mould 201 and it is right in mould 202, the second cylindrical cavity section runs through middle mould 2, and the outer diameter of the second cylindrical cavity section internal diameter and blank matches,
Left mould 201 has the first die cavity, it is right in mould 202 there is the second die cavity, left mould 201 with it is right in mould 202 mold, be enclosed
The length of second cylindrical cavity section, the second cylindrical cavity section is less than or equal to the big hole section depth of step deep hole in axial workpiece.
In this way, mould is plate, mould is column in left mould and the right side.By the vertical placement of blank, by heating
The bringing-up section of blank is arranged, and middle mould is vertically arranged, and left mould is bonded with mould in the right side with the peripheral surface of blank, is clamped, middle mould
Height is less than or equal to big hole section depth in axial workpiece, passes through the bringing-up section of upper mold extrusion billet, the first cylindrical cavity section of upper mold
Positioned at vertical direction, the first cylindrical cavity section and blank coaxial line push upper mold and so that upper mold lower end and middle mould upper end offset completion
Punching press.Wherein upper mold has hydraulic press drive more.
In the present embodiment, further include lower die 3,3 upper surface of lower die is a horizontal location face, and positioning is provided in lower die 3
Mandrel 301,301 vertical-horizontal positioning surface of positioning core axle are set up, and 301 diameter of positioning core axle is less than or equal to blank internal diameter, fixed
Position mandrel 301 stretches out height of the height more than middle mould 2 of lower die 3, is less than or equal in axial workpiece big hole section in step deep hole
The upper surface of depth, positioning core axle is a horizontal plane, and the upper surface of lower die 3 coordinates with one side of the middle mould 2 far from upper mold 1.
In this way, the setting of positioning core axle, can facilitate positioning blank, in extruded hole, reinforces the rigidity of blank, reduce and become
Shape amount, prevents buckling phenomenon.When squeezing flat-bottom hole, mandrel plays support, bottom can be made to strike out flat.
In the present embodiment, a forming core shaft is arranged in the upper surface of positioning core axle 301, forming core shaft perpendicular positioning mandrel
Upper surface and co-axial setting, the outer diameter of forming core shaft are less than or equal to the internal diameter of the aperture section of step deep hole in axial workpiece,
The length of forming core shaft is more than or equal to the aperture section depth of step deep hole.
In this way, the setting of forming core shaft can be in punching press, it is ensured that one end internal diameter being extruded will not be bent, and be applicable in this way
The aperture longer situation in axial workpiece stepped hole can pass through the peripheral surface of the forming core shaft when specifically squeezing, it is ensured that should
The endoporus of pressed end is regular circular hole, facilitates processing.In modulus, by the way that mandrel can be knocked out along forming core shaft axial force distribution,
Complete demoulding.
In the present embodiment, bellmouth is provided in upper mold 1, bellmouth is connected with the first cylindrical cavity section, bellmouth and
One cylindrical cavity section coaxial line, the outside diameter of bellmouth is identical as the second cylindrical cavity section internal diameter, the end diameter of bellmouth and
The internal diameter of one cylindrical cavity section is identical, and bellmouth big end connect the end face of side through upper mold 1 with middle mould 2.
In this way, there is the conical surface of bellmouth certain guiding role, compression blank heating section periphery to make the blank of bringing-up section
It is imported in the first cylindrical cavity along the conical surface, crimp, avoids the first cylindrical cavity and directly squeeze generation cutting, it is ensured that blank quilt
The internal diameter of one end of compression becomes smaller.
The following discloses a kind of processing method of step deep hole axial workpiece, specifically used the utility model is provided
Diel.
A kind of processing method of step deep hole axial workpiece is used to process the axial workpiece with step deep hole, including following
Step：
A selects materials in the tube as blank；
B heats one section of blank, and bringing-up section corresponds to the aperture section of step deep hole in covering axial workpiece；
Using the blank after molding die punching press heating, there is molding die C a molding chamber, shaping mold cavity to have mutual
The the first cylindrical cavity section and the second cylindrical cavity section of connection, the first cylindrical cavity section and the coaxial arrangement of the second cylindrical cavity section, the second cylinder
Chamber section internal diameter is more than the first cylindrical cavity section internal diameter, and the outer diameter of the second cylindrical cavity section internal diameter and blank matches, the first cylindrical cavity section
Length be more than or equal to the aperture section depth of step deep hole in axial workpiece, the internal diameter of the first cylindrical cavity section is more than or equal to axis class zero
The outer diameter of part；The blank is stretched into the shaping mold cavity and carries out punching press so that corresponds to axial workpiece on the blank
The position of aperture section, which is stamped, stretches into extrusion forming in the first cylindrical cavity section；
After D punch formings, demould, it is cooling, the blank after punching press is finished, the axial workpiece of size qualification is obtained.
In this way, being processed by selecting materials in the tube to be used as blank, a prefabricated component is obtained by heating punching press, finishing should
Prefabricated component can be obtained the axial workpiece that size qualification carries step deep hole.In this way relative to selection round steel as Raw material processing rank
Terraced deep hole axial workpiece, pre-add part only need to carry out reaming under conditions of having bottom outlet, and the processing such as bore hole can be kept away in this way
Exempt from the drilling deep hole directly on round steel, greatly reduce difficulty of processing, avoids deep hole drilling operation.
Further, the internal diameter of blank is less than or equal to more than the aperture section internal diameter of step deep hole in axial workpiece in step A
The big hole section internal diameter of step deep hole, the outer diameter of blank are more than or equal to the outer diameter of axial workpiece, and there are processing in length direction for blank
Surplus.
In this way, in actual processing production, this method is chiefly used in the processing of axial workpiece of the diameter of axle no more than 20mm, therefore selects
When with blank, pipe fitting blank outer diameter is generally higher than fabricated part outer diameter 3-5mm, and internal diameter is subject to step deep hole macropore internal diameter, and one
As be less than macropore internal diameter 0.5mm, generally there are the allowance of 5-8mm on length direction.The setting one of the allowance is to keep away
Exempt to waste material, second is that subsequent processing capacity can be reduced.
Further, the circumferential position of the end of the bringing-up section of blank has oblique angle.
In this way, when the setting at oblique angle prevents punching press after heating, the periphery position of the end of the bringing-up section crumbles.It is corresponding oblique
Angle can play the role of centainly being oriented to.The size at oblique angle is generally C1-C3 in practice.
Further, the molding die in step C includes upper mold and middle mould, and the first cylindrical cavity section is arranged in upper mold, the
Two cylindrical cavity sections are arranged on middle mould, and mould during middle mould includes left mould and is right, the second cylindrical cavity section runs through middle mould, and left mold has
First die cavity, it is right in mold have the second die cavity, left mould with it is right in mould mold, be enclosed the second cylindrical cavity section, the second cylinder
The length of chamber section is less than or equal to the big hole section depth of step deep hole in axial workpiece.
In this way, upper middle mould is provided separately and is easy for fabricating first.Specific upper mold is plate, left mould and mould in the right side
It is column.By the vertical placement of blank, bringing-up section is arranged upward, and middle mould is vertically arranged, by left mould and mould and base in the right side
The peripheral surface fitting of material clamps, and the height of middle mould is less than or equal to big hole section depth in axial workpiece, passes through upper mold extrusion billet
First cylindrical cavity of bringing-up section, upper mold is located at vertical direction, the first cylindrical cavity and blank coaxial line, pushes upper mold and makes under upper mold
End offsets with middle mould upper end and completes punching press.Wherein upper mold is driven by hydraulic press.
Further, bellmouth is provided in upper mold, bellmouth is connected with the first cylindrical cavity section, bellmouth and the first cylinder
Chamber section coaxial line, the outside diameter of bellmouth is identical as the second cylindrical cavity section internal diameter, the end diameter of bellmouth and the first cylinder
The internal diameter of chamber section is identical, and bellmouth big end connect the end face of side through upper mold with middle mould.
In this way, there is the conical surface of bellmouth certain guiding role, compression blank heating section periphery to make the blank of bringing-up section
It is imported in the first cylindrical cavity along the conical surface, crimp, avoids the first cylindrical cavity and directly squeeze generation cutting, it is ensured that blank quilt
The internal diameter of one end of compression becomes smaller.
Further, further include lower die, lower die upper surface is a horizontal location face, and positioning core axle is provided in lower die, fixed
Position mandrel vertical-horizontal positioning surface is set up, and positioning core axle diameter matches with blank, and positioning core axle stretches out the height of lower die
More than the length of the second cylindrical cavity section, it is less than or equal to the big hole section depth of step deep hole in axial workpiece, the upper surface of positioning core axle
For a horizontal plane.
In this way, the setting of positioning core axle, can facilitate positioning blank, in extruded hole, reinforces the rigidity of blank, reduce and become
Shape amount, prevents buckling phenomenon.When squeezing flat-bottom hole, mandrel plays support, bottom can be made to strike out flat.
Further, a forming core shaft, the upper surface of forming core shaft perpendicular positioning mandrel is arranged in the upper surface of positioning core axle
And co-axial setting, the outer diameter of forming core shaft are less than or equal to the internal diameter of the aperture section of step deep hole in axial workpiece, forming core
The length of axis is more than or equal to the aperture section depth of step deep hole.
In this way, the setting of forming core shaft can be in punching press, it is ensured that one end internal diameter being extruded will not be bent, and be applicable in this way
The aperture longer situation in axial workpiece stepped hole can pass through the peripheral surface of the forming core shaft when specifically squeezing, it is ensured that should
The endoporus of pressed end is regular circular hole, facilitates processing.In modulus, mandrel can be knocked out along forming core shaft axial force distribution, is completed
Demoulding.
Claims (5)
1. a kind of step deep hole axial workpiece diel, for using materials in the tube as blank step deep hole axial workpiece into
Row processing, which is characterized in that there is a molding chamber, the shaping mold cavity to have the first cylindrical cavity being connected with each other for diel
Section and the second cylindrical cavity section, the first cylindrical cavity section and the coaxial arrangement of the second cylindrical cavity section, the second cylindrical cavity section internal diameter
More than the first cylindrical cavity section internal diameter, the outer diameter of the second cylindrical cavity section internal diameter and the blank matches, and described first
The length of cylindrical cavity section be more than or equal to the axial workpiece in step deep hole aperture section depth, the first cylindrical cavity section it is interior
Diameter is more than or equal to the outer diameter of the axial workpiece.
2. step deep hole axial workpiece diel as described in claim 1, which is characterized in that diel include upper mold and
Middle mould, the upper mold, which has, is vertically provided with the first cylindrical cavity section, and the length of the first cylindrical cavity section is more than or equal to axis class zero
The aperture section depth of step deep hole in part, the internal diameter of the first cylindrical cavity section is more than or equal to the outer diameter of the axial workpiece, small
In being provided with the second cylindrical cavity section on the outer diameter of blank, the middle mould, mould during the middle mould includes left mould and is right, described second
Cylindrical cavity section runs through the middle mould, and the outer diameter of the second cylindrical cavity section internal diameter and the blank matches, the left mold
Have the first die cavity, it is described it is right in mold have the second die cavity, the left mould with it is described it is right in mould mold, be enclosed described second
In cylindrical cavity section, the length of the second cylindrical cavity section is less than or equal to the big hole section depth of step deep hole in the axial workpiece.
3. step deep hole axial workpiece diel as claimed in claim 2, which is characterized in that further include lower die, under described
Mould upper surface is a horizontal location face, is provided with positioning core axle in the lower die, the vertical horizontal location of the positioning core axle
It is arranged upwardly, the positioning core axle diameter is less than or equal to the blank internal diameter, and the positioning core axle stretches out the height of the lower die
Degree is less than or equal in the axial workpiece depth of big hole section in step deep hole, the locating core more than the height of the middle mould
The upper surface of axis is a horizontal plane, and the upper surface of the lower die is used to coordinate with one side of the middle mould far from the upper mold.
4. step deep hole axial workpiece diel as claimed in claim 3, which is characterized in that the upper table of the positioning core axle
A forming core shaft, the forming core shaft vertically upper surface of the positioning core axle and co-axial setting, the molding is arranged in face
The outer diameter of mandrel is less than or equal to the internal diameter of the aperture section of step deep hole in the axial workpiece, and the length of the forming core shaft is more than
Equal to the aperture section depth of the step deep hole.
5. step deep hole axial workpiece diel as claimed in claim 2, which is characterized in that be provided with cone in the upper mold
Shape hole, the bellmouth are connected with the first cylindrical cavity section, the bellmouth and the first cylindrical cavity section coaxial line, described
The outside diameter of bellmouth is identical as the second cylindrical cavity section internal diameter, the end diameter of the bellmouth and first cylinder
The internal diameter of chamber section is identical, and the bellmouth big end connect the end face of side through the upper mold with the middle mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201721901217.5U CN207668292U (en) | 2017-12-29 | 2017-12-29 | A kind of step deep hole axial workpiece diel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721901217.5U CN207668292U (en) | 2017-12-29 | 2017-12-29 | A kind of step deep hole axial workpiece diel |
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| CN207668292U true CN207668292U (en) | 2018-07-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842149A (en) * | 2018-08-21 | 2020-02-28 | 中车齐齐哈尔车辆有限公司 | Railway vehicle side frame and forming process thereof and upright post hole core |
-
2017
- 2017-12-29 CN CN201721901217.5U patent/CN207668292U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842149A (en) * | 2018-08-21 | 2020-02-28 | 中车齐齐哈尔车辆有限公司 | Railway vehicle side frame and forming process thereof and upright post hole core |
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Address after: 400030 No. 38, Nanxi Industrial Park, wellhead Town, Shapingba District, Chongqing Patentee after: Chongqing Guoshi Hongshen Technology Co.,Ltd. Address before: 400030 No. 38, Nanxi Industrial Park, wellhead Town, Shapingba District, Chongqing Patentee before: CHONGQING GUOSHI HONGSHEN TECHNOLOGY CO.,LTD. |