CN105880483A - Sand core drilling machine and casting air exhaust process - Google Patents
Sand core drilling machine and casting air exhaust process Download PDFInfo
- Publication number
- CN105880483A CN105880483A CN201610349679.4A CN201610349679A CN105880483A CN 105880483 A CN105880483 A CN 105880483A CN 201610349679 A CN201610349679 A CN 201610349679A CN 105880483 A CN105880483 A CN 105880483A
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- China
- Prior art keywords
- core
- drill bit
- puncher
- motor
- slide block
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/18—Finishing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a sand core drilling machine which is used for drilling holes in core head seats of a sand core. The sand core drilling machine comprises a frame main body, a replaceable sand core holding table and drilling devices, wherein the replaceable sand core holding table is arranged on the frame main body; the sand core is fixed on the sand core holding table; the drilling devices are arranged on two sides of the sand core holding table; holes are drilled in the core head seats of the sand core by the drilling devices; sand core positioning devices and sand core pressing devices are arranged at two ends of the sand core holding table; each drilling device comprises a drilling machine support frame, a guiding device and a drill bit combination; the guiding devices are arranged on the drilling machine support frames; and the drill bit combination are driven to move by the guiding device. The invention further discloses a casting air exhaust process.
Description
Technical field
The invention belongs to casting field, relate to the air aspiration process of a kind of particular cast core, further relating to bleeds to specific core is carried out
The core puncher of punching.
Background technology
Aerofluxus is one of key technology in casting process, and in die cavity, foundry goods molding is had a great impact by gaseous state change, liquid
Body metal can send gas injecting in core when, if the body of casting can not be discharged smoothly, cast-internal there will be pore
Defect.
The casting sand core that the present invention is applicable to, moulding section structure is complicated, core print seat is abundant.Its both sides are provided with the core of positioning action
Headstock structure, and the core print seat of this type of core is abundant, applies in general to position core, further, the molding of this type of sand core structure
Part-structure is complicated, and each moulding section size is smaller, it is impossible to open aspirating hole in the inside of the moulding section of core.Moreover
Remaining moulding section is the core being wrapped in workpiece, because core moulding section is wrapped in aluminum liquid, it is impossible to it is bled,
So can only bleed at the most wrapped core print seat, core print seat the most so thickness of the location on core both sides is because it and is
The position portion of core, also should be the structure needs of sand core strength.
In order to preferably discharge the air in this type of core in prior art, being only to bleed in core surface, effect of bleeding is undesirable,
Easily there is gas hole defect in core thickness general goal in product.
Summary of the invention
In view of the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of core puncher and technique, be used for solving now
There is in technology core molding structure complicated, the technical problem that the abundant class core exhaust effect of core print seat is the best.
For achieving the above object and other relevant purposes, the present invention provides a kind of core puncher, punches for sand core head seat,
Including chassis body, replaceable core placement platform, perforating device, described chassis body arranges replaceable core placement platform, institute
Stating and fix core in core placement platform, described core placement platform both sides are provided with perforating device, by described perforating device to core core
Headstock punches；
The two ends of described core placement platform are provided with core positioner and core hold down gag；
Described perforating device includes puncher bracing frame, guider and drill bit combination, described puncher bracing frame is arranged described
Guider, described drill bit is combined through described guider and drives mobile.
As preferably, described core positioner includes locating dowel and positioning seat, and core described in described locating dowel scattering device is put
On platform, described positioning seat is arranged on described core placement platform two ends, and described positioning seat is groove-like, groove and the core print seat of core
Form fit.
As preferably, described core hold down gag is arranged on the side of described positioning seat, and described core hold down gag depends on from bottom to up
Secondary fixing motor mount, rotation and lifting motor, described rotation and lifting motor is connected with core latch, is risen by described rotation
Fall motor can drive described core latch rotate and move up and down, and compresses sand core head seat by described core latch.
As preferably, described guider includes that slide block, guide rail, driving motor, the combination of described drill bit include drill bit motor and brill
Head, described driving driven by motor slide block moves on guide rail, and drill bit motor and drill bit are fixed on slide block, and drill bit moves with slide block.
As preferably, the top of described puncher bracing frame is the inclined design tilted, and is higher than near described core placement platform side
Away from core placement platform side, puncher bracing frame arranges safe distance with the side of core placement platform；
Described inclined-plane is provided with power rail and guide post, and described slide block passes power rail, and the both sides of described power rail are respectively provided with one
Guide post；
The outer side edges of described guide post is provided with rail groove, and support fixed block is passed through in the lower section of slide block, and described pulley embeds described rail
In road groove；
Described power rail is worm screw, is driven by worm gear, and described turbine is connected with described driving motor.
As preferably, described power rail is equipped with the baffle plate vertical with track with the both-side ends of the track of guide post.
As preferably, the link of the connection L-type fixed above of described slide block, inside the vertical portion of L-type, fixing connection drill bit is electric
Machine, the drill bushing of drill bit motor passes link, fixed drill bit on drill bushing.
As preferably, described drill bit motor and slide block are arranged at the homonymy of the vertical portion of L-type link, link vertical
It is provided with safe distance between part and slide block.
As preferably, the left and right sides of described chassis body is provided with drill bit guide plate, and described drill bit passes guide plate.
As it has been described above, a kind of core puncher of the present invention, have the advantages that, relative to manual punching, this equipment carries
High efficiency, the size in hole is unified, size will be caused different because user is different.
To core and core print seat registration, punching is convenient.The replaceable scope of application adding puncher of core placement platform.
A kind of casting air aspiration process, comprises the steps:
The first step, complete in core mold core；
Second step, core is placed on above-mentioned puncher and punches, about the 50% of a diameter of core print seat minimum sectional area in hole,
The punching degree of depth is for leaving cavity surface 5mm；
3rd, core is placed in a dry environment, stands 24 hours, reach dehumidifying, the effect of hardening；
4th step, puts into casting mould by core, carries out watering cast aluminium liquid, exhaust tube is placed to the aspirating hole that second step is beaten simultaneously
In, core is bled, treats that aluminum liquid solidifies, complete whole casting cycle.
As preferably, it is contemplated that the feature of core, the punching degree of depth is the most shallow, and effect of bleeding is bad, and the punching degree of depth is too deep, and core is again
Fragile, so the diameter general control in hole is at about 50% that ABS is core print minimum sectional area, the punching degree of depth according to
Depending on core print situation, typically get to and leave cavity surface 5mm and be advisable.
As it has been described above, a kind of casting air aspiration process of the present invention, have the advantages that
Solve the class core that core molding structure is complicated, core print seat is abundant to bleed in casting the problem of difficulty.By in thickness
Real core print end punching, extends to exhaust tube inside, increases the surface area of core negative pressure, improve effect of bleeding, improve product
Quality.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of the core puncher of the embodiment of the present invention.
Fig. 2 is shown as core positioner and the structural representation of core hold down gag of the core puncher of the embodiment of the present invention.
Fig. 3 is shown as the structural representation of the core perforating device of the core puncher of the embodiment of the present invention.
Piece mark explanation
100 main bodys,
110 assistance platforms,
120 main platforms,
121 support bars,
122 bracing pieces,
123 guide plates,
124 through holes,
200 core placement platforms,
210 positioners,
211 locating dowels,
212 positioning seats,
220 hold down gags,
221 motor mounts,
222 rotation and lifting motors,
223 core latch,
300 perforating devices,
310 puncher bracing frames,
311 drill bit motors,
320 guiders,
321 slide blocks,
322 guide rails,
323 drive motor,
324 power rails,
325 guide posts,
326 baffle plates,
327 rail grooves,
328 supports,
329 pulleys,
330 drill bit combinations,
331 drill bit motors,
332 drill bits,
333 links,
334 drill bushings,
400 cores,
401 core print seats.
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art can be by disclosed by this specification
Content understand other advantages and effect of the present invention easily.The present invention can also be added by the most different detailed description of the invention
To implement or application, the every details in this specification can also be based on different viewpoints and application, in the essence without departing from the present invention
Various modification or change is carried out under god.
The core puncher that Fig. 1 shows, including the main body 100 being made up of framework, the top of main body 100 is combined with removable sand
Core placement platform 200, the side of main body 100 is provided with perforating device 300.The when of work, core 400 is fixed on core and puts
On platform 200, then by the perforating device 300 of both sides, two core print seats 401 of core 400 are punched.
Main body 100 includes the assistance platform 110 of the left and right sides and the middle main platform 120 with certain altitude.For ensureing main platform
The intensity of 120,4 support bars 121 of main platform 120 are supported by bracing piece 122 reinforcement, and bracing piece 122 bottom is all provided with
Put on assistance platform 110.The left and right sides of main platform 120 is provided with drill bit guide plate 123, by guide plate 123 to drill bit
It is operated location, it is to avoid drill bit exists position skew, causes the skew of punch position.Guide plate 123 is by vertical connection
Part is fixed in chassis body 100.Guide plate 123 is provided with through hole 124 so that drill bit passes, and wherein, is provided with through hole 124
Drill bit guide plate 123 vertical with drill bit, it is to avoid the when of bit operation, interfered by drill bit guide plate 123.
Removable core placement platform 200 size is consistent with main platform 120, and core placement platform and main platform use screw tight
Solid installation.The two ends of core placement platform 200 are provided with core positioner 210 and core hold down gag 220.Core location dress
Putting 210 locating dowels 211 including arranging in core placement platform 200, the position of locating dowel 211 and size are according on core 400
Position, hole and size determine.Positioner 210 also includes the core positioning seat 212 being arranged on core placement platform 200 two ends, fixed
Position seat 212 is set to core print seat 401 form fit of groove-like, groove shapes and core 400.Recessed by positioning seat 212
Core 400 is carried out spacing by groove, it is ensured that during punching, and the position of core 400 core print seat 401 is fixed.Shown in Fig. 3, sand
Core hold down gag 220 is arranged on the side of positioning seat 212, fixes motor mount 221, rotation and lifting electricity the most successively
Machine 222, rotation and lifting motor 222 is connected with core latch 223, core can be driven to lock by rotation and lifting motor 222
Plate 223 rotates and moves up and down, and compresses sand core head seat 401 by core latch 223.
Being provided with perforating device 300 on the assistance platform 110 of both sides, shown in Fig. 2, perforating device 300 includes that one is beaten
Hole machine bracing frame 310, guider 320 and drill bit combination 330.Guider 320 is set on puncher bracing frame 310, bores
Head combination 330 drives mobile by guider 320.Guider 320 mainly includes slide block 321, guide rail 322, drives electricity
Machine 323, drill bit combination 330 mainly includes drill bit motor 331 and drill bit 332.
The top of puncher bracing frame 310 is inclined design, is higher than away from main platform 120 side near main platform 120 side,
The when of making bit operation, drill bit works upward.Puncher bracing frame 310 arranges safety with the side of corresponding main platform 120
Distance.Inclined-plane is provided with guide rail 322, and guide rail 322 includes power rail 324 and guide post 325, and slide block 321 is through power rail
324, the both sides of power rail 324 are respectively provided with a guide post 325.The both-side ends of the track of power rail 324 and guide post 325
It is equipped with the baffle plate 326 vertical with track.Power rail 324 is worm screw, is driven by worm gear, and turbine connects with driving motor 323
Connecing, worm screw herein is threaded screw mandrel.The outer side edges of guide post 325 is provided with rail groove 327, it is possible in being simultaneously located at
Side.Screw mandrel band movable slider 321 moves, and support 328 fixed block 329 is passed through in the lower section of slide block 321, and pulley 329 embeds
In rail groove 327.The weight of drill bit combination 330 is shared, it is to avoid overweight cause screw mandrel flexural deformation also by guide post 325.
The link 333 of the connection L-type fixed above of slide block 321, fixing connection drill bit motor 331 inside the vertical portion of L-type,
The drill bushing 334 of drill bit motor 331 is through link 333, fixed drill bit 332 on drill bushing 334.The axle of drill bit 332
Line, screw mandrel, guide post 325 are parallel to each other.Drill bit motor 331 and slide block 321 are arranged at the vertical of L-type link 333
The homonymy of part, is provided with safe distance between vertical portion and the slide block 321 of link 333.By the safe distance arranged,
When slide block 321 drives drill bit motor 331 to move in orbit, the vertical portion of link 333 first contacts with baffle plate 326, reaches
On slide block 321 move extreme higher position, increase operation safety, it is to avoid slide block 321 infinitely on move getaway, cause peace
Total failure, meanwhile, it also avoid slide block 321 and directly clashes into baffle plate 326, and the appearance causing slide block 321 to coordinate with screw mandrel lacks
Fall into.
Track 322 is provided with drill bit slide block 321, and drill bit slide block 321 can be along incline track 322 under the drive driving motor 323
Mobile.Being fixedly connected with drill bit motor 331 on drill bit slide block 321, drill bit motor 311 extends drill bit 332 through link
333, drill bit motor 311 drives drill bit 332 rotation to work.The axis of drill bit 332 is parallel with the inclined-plane of puncher bracing frame 310.
Driving motor 323 to drive screw mandrel to rotate, slide block 321 drives drill bit motor 331 to move on screw mandrel, and drill bit 332 works
Punching.
The use step of puncher includes laying core 400, clamping core 400, punching, drill bit reset, unclamping and take core 400 away.
A kind of casting air aspiration process, including:
The first step, complete in core mold core 400；
Second step, core 400 is placed on above-mentioned puncher and punches, the 50% of a diameter of core print seat minimum sectional area in hole
Left and right, the punching degree of depth is for leaving cavity surface 5mm；.In view of the feature of core, the punching degree of depth is the most shallow, and effect of bleeding is bad,
The punching degree of depth is too deep, and core is the most fragile, so the diameter general control in hole is at 50% that ABS is core print minimum sectional area
Left and right, depending on the punching degree of depth is according to core print situation, typically gets to and leaves cavity surface 5mm and be advisable.
3rd, core 400 is placed in a dry environment, stand 24 hours, reach dehumidifying, the effect of hardening；
4th step, puts into casting mould by core 400, carries out watering cast aluminium liquid, and what exhaust tube was placed to second step beats simultaneously takes out
In pore, core 400 is bled, treat that aluminum liquid solidifies, complete whole casting cycle.
Use puncher and the technique thereof of the present embodiment, add up 1000 products, owing to this punching is near water jacket boring cover hole
, so the defect around statistics boring cover hole, before improving 23 of the shrinkage cavity defect around boring cover hole become 1 after improvement.
Percent defective reduces by 2.2%.
The principle of above-described embodiment only illustrative present invention and effect thereof, not for limiting the present invention.Any it is familiar with this skill
Above-described embodiment all can be modified under the spirit and the scope of the present invention or change by the personage of art.Therefore, such as
All that in art, tool usually intellectual is completed under without departing from disclosed spirit and technological thought etc.
Effect is modified or changes, and must be contained by the claim of the present invention.
Claims (10)
1. a core puncher, punches for sand core head seat, it is characterised in that include that chassis body, replaceable core are put
Platform, perforating device, described chassis body arranges replaceable core placement platform, described core placement platform fixes core,
Described core placement platform both sides are provided with perforating device, are punched sand core head seat by described perforating device；
The two ends of described core placement platform are provided with core positioner and core hold down gag；
Described perforating device includes puncher bracing frame, guider and drill bit combination, described puncher bracing frame is arranged described
Guider, described drill bit is combined through described guider and drives mobile.
Core puncher the most according to claim 1, it is characterised in that described core positioner includes locating dowel and location
, in core placement platform described in described locating dowel scattering device, described positioning seat is arranged on described core placement platform two ends,
Described positioning seat is groove-like, groove and the core print seat form fit of core.
Core puncher the most according to claim 2, it is characterised in that described core hold down gag is arranged on described positioning seat
Side, described core hold down gag fixes motor mount, rotation and lifting motor, described rotation liter the most successively
Fall motor be connected with core latch, by described rotation and lifting motor can drive described core latch rotation and on move down
Dynamic, compress sand core head seat by described core latch.
4. according to the arbitrary described core puncher of claim 1-3, it is characterised in that described guider include slide block, guide rail,
Motor, the combination of described drill bit is driven to include that drill bit motor and drill bit, described driving driven by motor slide block move on guide rail,
Drill bit motor and drill bit are fixed on slide block, and drill bit moves with slide block.
Core puncher the most according to claim 4, it is characterised in that the top of described puncher bracing frame is the oblique of inclination
Face is designed, and near described core placement platform side higher than away from core placement platform side, puncher bracing frame is put with core
The side of platform arranges safe distance；
Described inclined-plane is provided with power rail and guide post, and described slide block passes power rail, and the both sides of described power rail are respectively provided with one
Guide post；
The outer side edges of described guide post is provided with rail groove, and support fixed block is passed through in the lower section of slide block, and described pulley embeds described rail
In road groove；
Described power rail is worm screw, is driven by worm gear, and described turbine is connected with described driving motor.
Core puncher the most according to claim 5, it is characterised in that the end, both sides of the track of described power rail and guide post
End is equipped with the baffle plate vertical with track.
Core puncher the most according to claim 6, it is characterised in that the connection of the connection L-type fixed above of described slide block
Frame, fixing connection drill bit motor inside the vertical portion of L-type, the drill bushing of drill bit motor passes link, drill bushing
Upper fixed drill bit.
Core puncher the most according to claim 7, it is characterised in that described drill bit motor and slide block are arranged at L-type even
Connect the homonymy of the vertical portion of frame, between vertical portion and the slide block of link, be provided with safe distance.
Core puncher the most according to claim 8, it is characterised in that the left and right sides of described chassis body is provided with drill bit and leads
To plate, described drill bit passes guide plate.
10. a casting air aspiration process, it is characterised in that comprise the steps:
The first step, complete in core mold core；
Second step, core is placed on power 1 and punches to the arbitrary described puncher of power 9, and a diameter of core print seat minimum in hole is cut
About the 50% of area, the punching degree of depth is for leaving cavity surface 5mm；
3rd, core is placed in a dry environment, stands 24 hours, reach dehumidifying, the effect of hardening；
4th step, puts into casting mould by core, carries out watering cast aluminium liquid, exhaust tube is placed to the aspirating hole that second step is beaten simultaneously
In, core is bled, treats that aluminum liquid solidifies, complete whole casting cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349679.4A CN105880483B (en) | 2016-05-24 | 2016-05-24 | A kind of core puncher and a kind of casting air aspiration process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349679.4A CN105880483B (en) | 2016-05-24 | 2016-05-24 | A kind of core puncher and a kind of casting air aspiration process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105880483A true CN105880483A (en) | 2016-08-24 |
| CN105880483B CN105880483B (en) | 2018-03-23 |
Family
ID=56717224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610349679.4A Active CN105880483B (en) | 2016-05-24 | 2016-05-24 | A kind of core puncher and a kind of casting air aspiration process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105880483B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842795A (en) * | 2020-06-16 | 2020-10-30 | 四川南部宏昊铸造有限公司 | Cylinder cover water jacket sand core drilling equipment |
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| CN201244869Y (en) * | 2008-06-16 | 2009-05-27 | 天津新伟祥工业有限公司 | Perforating tool of cast sand core head punch |
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| WO2012165181A1 (en) * | 2011-06-03 | 2012-12-06 | 新東工業株式会社 | Core sand filling device and core sand filling method in core making machine |
| CN203900394U (en) * | 2014-06-12 | 2014-10-29 | 华东泰克西汽车铸造有限公司 | Automatic gas vent punching device for base core of automobile engine cylinder block |
| CN204470538U (en) * | 2015-03-05 | 2015-07-15 | 丰田工业(昆山)有限公司 | A kind of core steam vent puncher |
| CN205763673U (en) * | 2016-05-24 | 2016-12-07 | 上海皮尔博格有色零部件有限公司 | A kind of core puncher |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201244869Y (en) * | 2008-06-16 | 2009-05-27 | 天津新伟祥工业有限公司 | Perforating tool of cast sand core head punch |
| CN201357208Y (en) * | 2009-02-23 | 2009-12-09 | 宁波合力模具科技股份有限公司 | Hole drilling mechanism of sand core vent hole for casting |
| WO2012165181A1 (en) * | 2011-06-03 | 2012-12-06 | 新東工業株式会社 | Core sand filling device and core sand filling method in core making machine |
| CN203900394U (en) * | 2014-06-12 | 2014-10-29 | 华东泰克西汽车铸造有限公司 | Automatic gas vent punching device for base core of automobile engine cylinder block |
| CN204470538U (en) * | 2015-03-05 | 2015-07-15 | 丰田工业(昆山)有限公司 | A kind of core steam vent puncher |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111842795A (en) * | 2020-06-16 | 2020-10-30 | 四川南部宏昊铸造有限公司 | Cylinder cover water jacket sand core drilling equipment |
| CN111842795B (en) * | 2020-06-16 | 2021-12-14 | 四川南部宏昊铸造有限公司 | Cylinder cover water jacket sand core drilling equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105880483B (en) | 2018-03-23 |
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Address after: 1288 Xingxian Road, Jiading Industrial Zone, Shanghai, 201800 Patentee after: Huayu Pilberg Nonferrous Components (Shanghai) Co., Ltd. Address before: 201815 1288 Xingxian Road, Jiading Industrial Zone, Jiading District, Shanghai Patentee before: KOLBENSCHMIDT PIERBURG SHANGHAI NONFERROUS COMPONENTS CO., LTD. |
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