CN105945224A - Integral core knockout core box mold for bolster and side frame for railway freight car - Google Patents
Integral core knockout core box mold for bolster and side frame for railway freight car Download PDFInfo
- Publication number
- CN105945224A CN105945224A CN201610482266.3A CN201610482266A CN105945224A CN 105945224 A CN105945224 A CN 105945224A CN 201610482266 A CN201610482266 A CN 201610482266A CN 105945224 A CN105945224 A CN 105945224A
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- Prior art keywords
- core box
- core
- piece
- integral
- box body
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/06—Core boxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses an integral core knockout core box mold for a bolster and a side frame for a railway freight car. The integral core knockout core box mold comprises a lower integral core box and an upper integral core box, wherein cavity structures in the upper and lower core boxes are used for forming mold cores respectively; the lower integral core box is composed of a core box body fixed to a core box supporting plate, a core box frame and core box movable blocks; the upper integral core box is composed of an upper integral core box body fixed to an upper integral core box supporting plate, upper integral core box movable blocks and locking pins of the upper integral core box movable blocks; and the positions of the upper integral core box body and the upper integral core box supporting plate are determined by positioning pins and sleeves. According to the integral core knockout core box mold, the integral structure of the lower integral core box is a concave structure, and the integral structure of the upper integral core box is a convex structure or other structure combinations capable of carrying out seamless matching, so that the stability of the mold cores formed by the lower integral core box and the upper integral core box is ensured. The integral core knockout core box mold is convenient in technical arrangement of chillers and locally using special sands, accurate in position, good in deformability of the mold cores, small in cracking tendency and higher in core making efficiency.
Description
Technical field:
The present invention relates to a kind of integral core knockout core mould, particularly relate to a kind of rail freight bolster side frame
Integral core knockout core mould.
Background technology:
The rhegma of the train critical components such as bolster, side frame, hitch, is to affect mainly asking of train operating safety
Topic.Improve the difficult problem that the workmanship of critical component, the Shi Yuan Ministry of Railways and each vehicle manufacturing enterprise are urgently to be resolved hurrily.
2005, there is rhegma in the bolster that certain enterprise manufactures, cause a serious accident when vehicle runs.Therefore, carry
The castability rising critical component is extremely urgent.The immediate cause of current accident is core cavity two block-type core pair
Meeting place, have bigger fash, the existence of fash makes foundry goods in cast cooling procedure, defines the biggest
Deflation resistance, fash root has tiny crackle, is difficult to be found, and finds also to be difficult to adopt remedial measures.
Foundry goods is in vehicle operation, and owing to bearing the biggest dynamic loading, tiny crackle constantly expands, prolongs
Stretching, effective stress cross section is gradually reduced, until casting strength can not carry suffered external force and cause rhegma.Former ferrum
Road portion organizes associated specialist, and the foundry goods that rhegma accident occurs the most over the years is carried out statistical analysis, finds the biggest
Most rhegma accidents, is all to be caused by core cavity docking core joint flash: or there is fine cracks in fash,
Or at fash, there is burning into sand defect, or at fash, there is cleaning blade trace, incised wound defect.Therefore, at former railway
Portion leading under, the domestic technical study having started to eliminate core cavity fash.
The patent No. " CN200810088957.0 " disclose one " train carriage bolster integral core core box group,
Bolster core and processing method thereof ", including upper half core box and lower half core box, and some loose pieces；On described
Half core box and lower half core box are with at the largest contours of integral core and the main body broken line as level is for a point box
Face；Loose piece correspondence divides the positions such as the projection outside box face, inclined-plane to arrange, including: corresponding next-door neighbour's integral core length
Two pairs of boss up and down of direction line of symmetry, i.e. left and right convex platform and left and right lower convex platform, arranged with width pair
Claim a symmetrical left side the first loose piece and right first loose piece centered by line；Corresponding close integral core length direction two ends
The inclined-plane of the inside side-lower of two symmetrical waists, arranges two to totally four the second loose pieces；Every pair
Two loose pieces are symmetrical arranged centered by width line of symmetry, every a pair second loose pieces towards the side of inner chamber,
There is the inclined-plane of the inside side-lower of corresponding described integral core waist.The bolster core that this core box group obtains will not
Producing assembly error, dimensional accuracy is easily controllable.
This patent form processing is core shooting formula, penetrates into into two pieces for core respectively, in position arranges lock
Tieholen, is then aligned two panels core by mechanical hand, is positioned in another mould and again penetrates sand, locking hole
Molding sand solidification after by two panels core composition entirety.Although after this technique molding exhaust gas inside good, shrink be obstructed
The probability that less, core cavity exists gap is little, but repeatedly core shooting also exists huge, the deformability of consuming
Difference and the defect of the employing process means such as chill, special sand difficulty, form core unstable, to user band
Carry out many inconvenience.
Summary of the invention:
For the deficiencies in the prior art, the present invention devises a kind of rail freight bolster side frame integral core separation-type
Core mould, can fundamentally improve integral explosion core deformability difference and use the process means such as chill, special sand
The situation of difficulty.
The technical solution adopted for the present invention to solve the technical problems is: a kind of rail freight bolster side frame is overall
Core knockout core mould, is made up of lower one-piece core box and upper one-piece core box, and lower one-piece core box includes being fixed on
Core box body, core box frame and some loose pieces on core box supporting plate, upper one-piece core box includes being fixed on entirety
Upper integral core box body on core box supporting plate, some upper one-piece core box loose pieces and upper one-piece core box loose piece locking pin,
Upper integral core box body and upper one-piece core box supporting plate determine position by alignment pin, set, and upper and lower core box internal cavity is tied
Structure is respectively in order to form core.
Described some loose pieces and some upper concrete numbers of one-piece core box loose piece are 10～30 pieces.
Described lower one-piece core box processing technique is for be fixed on core box body on core box supporting plate, then processes core one by one
Box body loose piece coordinates face and each loose piece to coordinate face, utilizes mould pincers worker just loose piece and core box body to carry out bedding-in；
Reprocessing core box frame coordinates face, and by the core box frame after processing by mould pincers worker and core box body, loose piece
Carry out bedding-in processing technique hole, it is ensured that coordinate closely, come off flexibly without clamping stagnation；Core box good for bedding-in is lived
Block is fixed on core box body by fabrication hole, and core box frame is fixed on supporting plate, CNC milling machine complete core box body
Inner chamber, core box body divide box face to process.
Upper one-piece core box processing technique is that the upper integral core box body loose piece of processing one by one coordinates face and each work of upper entirety
Block coordinates face, utilizes mould pincers worker that loose piece and upper integral core box body are carried out bedding-in, it is ensured that coordinate face laminating tight
Close, come off flexibly without clamping stagnation and process and go up entirety loose piece fabrication hole, by each loose piece good for bedding-in by upper whole
Body technology hole is fixed on integral core box body, CNC milling machine complete core box inner chamber, core box divides box face to process.
It is respectively equipped with toroidal upset interface on two end faces that described upper one-piece core box is longitudinal, overturns interface
Two longitudinal end faces turn on；The upset a diameter of 50mm of interface, the pitch-row between two upset interfaces is
400mm, upset the interface center of circle and upper core box divide box identity distance from for 70mm.
The overall structure of described lower one-piece core box is concave structure, the overall structure of upper one-piece core box
For "convex" shaped structure or other can carry out seamless supporting structural grouping, it is ensured that lower one-piece core box, upper whole
It is stable that body core box forms core.
Beneficial effects of the present invention: be easy in technique arrange chill, local uses special sand, and position is accurate；
Core deformability is good, and crackle tendency is little；Coremaking efficiency is higher.
Accompanying drawing illustrates:
Fig. 1 is core box composition diagram under bolster integral core；
Fig. 2 is that under bolster integral core, core box core box body loose piece coordinates face figure；
Fig. 3 is that under bolster integral core, loose piece coordinates face figure；
Fig. 4 is core box composition diagram in bolster integral core；
Fig. 5 is that in bolster integral core, core box core box body loose piece coordinates face figure；
Fig. 6 is that in bolster integral core, loose piece coordinates face figure；
Fig. 7 is core box composition diagram under side frame integral core；
Fig. 8 is that under side frame integral core, core box core box body loose piece coordinates face figure；
Fig. 9 is that under side frame integral core, loose piece coordinates face figure；
Figure 10 is core box composition diagram on side frame integral core；
Figure 11 is that on side frame integral core, core box core box body loose piece coordinates face figure；
Figure 12 is that on side frame integral core, loose piece coordinates face figure；
Figure 13 is that core box overturns interface structure figure；
Wherein, 1-core box supporting plate, 2-core box body, 3-loose piece, 4-core box frame, 5-loose piece coordinate face,
6-core box frame coordinates face；
21-core box supporting plate I, 22-loose piece I, 23-loose piece locking pin I, 24-core box body I, 25-live
Block coordinates face I；
31-core box body II, 32-loose piece II, 33-core box frame II, 34-core box supporting plate II, 35-loose piece is joined
Conjunction face II；
41-loose piece locking pin III, 42-core box body III, 43-loose piece III, 44-core box supporting plate III, 45-live
Block coordinates face III.
Detailed description of the invention:
The present invention devises a kind of rail freight bolster side frame integral core knockout core mould, by lower integral core
Box and upper one-piece core box composition, core box body that lower one-piece core box includes being fixed on core box supporting plate, core box frame and
10～30 pieces of loose pieces, upper one-piece core box includes the upper one-piece core box being fixed on one-piece core box supporting plate
Body, 10～30 pieces of upper one-piece core box loose pieces and upper one-piece core box loose piece locking pin, upper integral core box body and upper whole
Body core box supporting plate determines position by alignment pin, set, and upper and lower core box internal cavity structure is respectively in order to form core.
Present invention relates particularly to bolster integral core knockout core and side frame integral core knockout core, implement as follows:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, bolster integral core knockout core includes shaking
One-piece core box on the lower one-piece core box of pillow and bolster, under bolster, one-piece core box includes the core being fixed on core box supporting plate
Box body, core box frame and loose piece, under bolster, one-piece core box processing technique is: core box body is fixed on core box
On supporting plate, then processing core box body loose piece coordinates face and each loose piece to coordinate face one by one, utilizes mould pincers worker just
Loose piece and core box body carry out bedding-in；Reprocessing core box frame coordinates face, and the core box frame after processing is passed through mould
Pincers worker and core box body, loose piece carry out bedding-in processing technique hole, it is ensured that coordinate closely, come off flexible nothing
Clamping stagnation；Being fixed on core box body by fabrication hole by loose piece good for bedding-in, core box frame is fixed on supporting plate,
Completed core box intracoelomic cavity by CNC milling machine, core box body divides box face to process.
On bolster, one-piece core box composition includes core box body I, loose piece I and the work being fixed on core box supporting plate I
Block locking pin I, core box body I and core box supporting plate I determine position by alignment pin, set.One-piece core box on bolster
Processing technique is: processing core box body loose piece coordinates face I and each loose piece to coordinate face I one by one, utilizes mould pincers worker
Loose piece I and core box body I is carried out bedding-in, it is ensured that fit closely, come off without clamping stagnation the most also in cooperation face
Processing loose piece fabrication hole, is fixed on each loose piece good for bedding-in on core box body I by fabrication hole, by numerical control
Milling machine completes core box inner chamber, and core box divides box face to process.
As shown in Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, side frame integral core knockout core bag
Include: one-piece core box composition and one-piece core box composition on side frame under side frame.Under side frame, one-piece core box includes being fixed on
Core box body II on core box supporting plate II, core box frame II and loose piece II, one-piece core box processing technique under side frame
For: core box body II is fixed on core box supporting plate II, then processing core box body loose piece II coordinates face and each one by one
Loose piece coordinates face, utilizes mould pincers worker just loose piece and core box body II to carry out bedding-in；Reprocessing core box frame coordinates
Face, and the core box frame II after processing is carried out bedding-in also by mould pincers worker with core box body II, loose piece II
Processing technique hole, it is ensured that coordinate closely, come off flexibly without clamping stagnation；Loose piece II good for bedding-in is passed through work
Skill hole is fixed on core box body II, and core box frame II is fixed on supporting plate, CNC milling machine complete in core box body II
Chamber, core box body II divide box face to process.
On side frame one-piece core box composition include the core box body III, the loose piece III that are fixed on core box supporting plate III and
Loose piece locking pin III, core box body III and core box supporting plate III determine position by alignment pin, set.Entirety on side frame
Core box processing technique is: processing core box body loose piece coordinates face III and each loose piece to coordinate face III one by one, utilizes mould
Loose piece III and core box body III is carried out bedding-in by tool pincers worker, it is ensured that the laminating of cooperation face is closely, come off flexible nothing
Clamping stagnation also processes loose piece fabrication hole, is fixed on core box body III by fabrication hole by each loose piece good for bedding-in,
Being completed core box inner chamber by CNC milling machine, core box divides box face to process.
The design by load after being initially charged with loose piece core box frame replace traditional be initially charged with core box frame after load and live
The assembling sequence of block, it is ensured that integral core bonding locking, and later stage taking-up loose piece is quickly, conveniently.Traditional work
Block is up big and down small circular table structure, and the assembling mode of loose piece is from top to bottom to assemble in core box frame, for
Coordinating the structure of loose piece, core box frame machine-shaping must be suitable for the structure of loose piece loading.Due to tradition loose piece
For up big and down small circular table structure, therefore the later stage takes out during loose piece particularly difficult, and the design is fundamentally
Solve this problem.
It is respectively equipped with toroidal upset interface on two end faces that in the design, one-piece core box is longitudinal, overturns interface
Two longitudinal end faces turn on；The upset a diameter of 50mm of interface, the pitch-row between two upset interfaces is
400mm, upset the interface center of circle and upper core box divide box identity distance from for 70mm.
It addition, the overall structure of lower one-piece core box is concave structure, the overall structure of upper one-piece core box
For "convex" shaped structure or other can carry out seamless supporting structural grouping, it is ensured that lower one-piece core box, upper whole
It is stable that body core box forms core.
Embodiment described above is for understanding method and the core concept of the present invention, without departing from present inventive concept
On the premise of, carry out any possible change or replacement, belong to protection scope of the present invention.
Claims (6)
1. a rail freight bolster side frame integral core knockout core mould, by lower one-piece core box and upper entirety
Core box forms, it is characterised in that: lower one-piece core box includes core box body, the core box frame being fixed on core box supporting plate
With some loose pieces, upper integral core box body that upper one-piece core box includes being fixed on one-piece core box supporting plate,
Some upper one-piece core box loose pieces and upper one-piece core box loose piece locking pin, upper integral core box body and upper one-piece core box torr
Plate determines position by alignment pin, set, and upper and lower core box internal cavity structure is respectively in order to form core.
A kind of rail freight bolster side frame integral core knockout core mould the most according to claim 1,
It is characterized in that: described some loose pieces and some upper concrete numbers of one-piece core box loose piece be 10～
30 pieces.
A kind of rail freight bolster side frame integral core knockout core mould the most according to claim 1,
It is characterized in that: described lower one-piece core box processing technique for core box body is fixed on core box supporting plate, then by
One processing core box body loose piece coordinates face and each loose piece to coordinate face, utilizes mould pincers worker just loose piece and core box body
Carry out bedding-in；Reprocessing core box frame coordinates face, and by the core box frame after processing by mould pincers worker and core box body,
Loose piece carries out bedding-in processing technique hole, it is ensured that coordinates closely, come off flexibly without clamping stagnation；Bedding-in is good
Loose piece be fixed on core box body by fabrication hole, core box frame is fixed on supporting plate, complete by CNC milling machine
Core box intracoelomic cavity, core box body is become to divide box face to process.
A kind of rail freight bolster side frame integral core knockout core mould the most according to claim 1,
It is characterized in that: upper one-piece core box processing technique coordinates face and upper whole for the upper integral core box body loose piece of processing one by one
The each loose piece of body coordinates face, utilizes mould pincers worker that loose piece and upper integral core box body are carried out bedding-in, it is ensured that to coordinate
Face laminating is tight, come off flexibly without the upper overall loose piece fabrication hole of clamping stagnation processing, by each loose piece good for bedding-in
It is fixed on upper integral core box body by upper integrated artistic hole, CNC milling machine completes core box inner chamber, core box divides
Box face processes.
5. come off according to a kind of rail freight bolster side frame integral core described in claim 1 or claim 4
Formula core mould, it is characterised in that: it is respectively equipped with circle on two end faces that described upper one-piece core box is longitudinal
Shape upset interface, upset interface turns on two longitudinal end faces；The upset a diameter of 50mm of interface, two
Pitch-row between upset interface is 400mm, and upset the interface center of circle and upper core box divide box identity distance from for 70mm.
6. come off according to a kind of rail freight bolster side frame integral core described in Claims 1 to 4 any one
Formula core mould, it is characterised in that: the overall structure of described lower one-piece core box be concave structure,
The overall structure of upper one-piece core box be "convex" shaped structure or other can carry out seamless supporting structural grouping,
Guarantee that lower one-piece core box, upper one-piece core box form core stable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482266.3A CN105945224A (en) | 2016-06-18 | 2016-06-18 | Integral core knockout core box mold for bolster and side frame for railway freight car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482266.3A CN105945224A (en) | 2016-06-18 | 2016-06-18 | Integral core knockout core box mold for bolster and side frame for railway freight car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105945224A true CN105945224A (en) | 2016-09-21 |
Family
ID=56905148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610482266.3A Pending CN105945224A (en) | 2016-06-18 | 2016-06-18 | Integral core knockout core box mold for bolster and side frame for railway freight car |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249546A (en) * | 2008-04-07 | 2008-08-27 | 齐齐哈尔轨道交通装备有限责任公司 | Train carriage bolster integral core box group, bolster sand core and its processing method |
| WO2008128451A1 (en) * | 2007-04-19 | 2008-10-30 | Csr Meishan Rolling Stock Co. Ltd | One-piece core manufacturing method for swing bolster and sideframe of lorry |
| CN201279571Y (en) * | 2008-09-28 | 2009-07-29 | 齐齐哈尔轨道交通装备有限责任公司 | Railway freight car swing-bolster integer core die |
| CN201389616Y (en) * | 2008-12-11 | 2010-01-27 | 天瑞集团铸造有限公司 | Core box for manufacturing whole sand core of swing bolster |
| CN202212527U (en) * | 2011-09-28 | 2012-05-09 | 宁波全力机械模具有限公司 | Integral core shooting box mold for railway vehicle swing bolster |
| CA2803963A1 (en) * | 2011-05-17 | 2012-11-22 | Nevis Industries Llc | Side frame and bolster for a railway truck and method for manufacturing same |
-
2016
- 2016-06-18 CN CN201610482266.3A patent/CN105945224A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008128451A1 (en) * | 2007-04-19 | 2008-10-30 | Csr Meishan Rolling Stock Co. Ltd | One-piece core manufacturing method for swing bolster and sideframe of lorry |
| CN101249546A (en) * | 2008-04-07 | 2008-08-27 | 齐齐哈尔轨道交通装备有限责任公司 | Train carriage bolster integral core box group, bolster sand core and its processing method |
| CN201279571Y (en) * | 2008-09-28 | 2009-07-29 | 齐齐哈尔轨道交通装备有限责任公司 | Railway freight car swing-bolster integer core die |
| CN201389616Y (en) * | 2008-12-11 | 2010-01-27 | 天瑞集团铸造有限公司 | Core box for manufacturing whole sand core of swing bolster |
| CA2803963A1 (en) * | 2011-05-17 | 2012-11-22 | Nevis Industries Llc | Side frame and bolster for a railway truck and method for manufacturing same |
| CN202212527U (en) * | 2011-09-28 | 2012-05-09 | 宁波全力机械模具有限公司 | Integral core shooting box mold for railway vehicle swing bolster |
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Application publication date: 20160921 |
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