CN108311657B - Special chilling block structure for casting large-scale numerical control horizontal machining center lathe bed - Google Patents
Special chilling block structure for casting large-scale numerical control horizontal machining center lathe bed Download PDFInfo
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- CN108311657B CN108311657B CN201810330027.5A CN201810330027A CN108311657B CN 108311657 B CN108311657 B CN 108311657B CN 201810330027 A CN201810330027 A CN 201810330027A CN 108311657 B CN108311657 B CN 108311657B
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- workbench
- chilling
- cavity
- chiller
- cooling
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- 238000005266 casting Methods 0.000 title description 25
- 238000001816 cooling Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000004576 sand Substances 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 230000017525 heat dissipation Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010114 lost-foam casting Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a special chiller structure for a lathe bed of a large numerical control horizontal machining center, which comprises a workbench, wherein the workbench comprises an upper workbench and a lower workbench, the lower workbench is arranged at the bottom of the upper workbench, a sand separation layer is arranged between the upper workbench and the lower workbench, a cavity is arranged in the upper workbench, an inner sprue is arranged at the top of the workbench, a chiller mechanism group is embedded and sleeved at the bottom of the lower workbench and comprises a plurality of chiller mechanisms, each chiller mechanism comprises a chiller body, a cooling cavity is arranged in the chiller body, a tooth-shaped groove is arranged at the top of the chiller body, and first connecting pipes are arranged on two sides of the chiller body. The invention increases the contact area of the chilling block body and the sand separation layer by arranging the tooth-shaped groove, improves the cooling speed, and simultaneously leads the liquid to flow in the chilling block mechanism set, thereby bringing out the heat and achieving the best cooling effect.
Description
Technical Field
The invention relates to the technical field of machining centers, in particular to a special chilling block structure for casting a lathe bed of a large-scale numerical control horizontal machining center.
Background
The chilling block is a chilling object arranged in the cavity, the surface of the cavity and the interior of the casting mold for accelerating the local cooling speed of the casting. The chilling block is matched with a pouring system and a riser system for use, and the solidification sequence of the casting is controlled to obtain a qualified casting. The cold iron is divided into inner cold iron and outer cold iron.
The function of the chill is to reduce the size of the riser and improve the process yield. Practice shows that the steel casting process yield can reach more than 70% by reasonably using a chill and a heat-insulating riser technology; the chill is placed at the proper position of the casting, so that the feeding channel can be improved. The internal quality grade of the casting can be improved, and a high-quality casting is provided; the feeding distance of the riser can be increased by using a chill in cooperation with a riser system: when designing the chiller, the thought is released, and the effective effects of the chiller on the aspects of patching, inclination, continuity and the like of the casting are comprehensively considered; the local thermal stress is eliminated, and the cracks are prevented. For large steel castings, chromite sand or zircon sand with good chilling effect should be used between the chills, so that the possibility of hot cracking can be further prevented; in the lost foam casting, chill can be used exactly as in the conventional casting method. The external chill can be used for casting people when pounding sand; the internal chill can be embedded or bonded in the casting mould during moulding, or can be extended to the outside of the mould and fixed in the sand mould. The placing principle of the internal and external chills for lost foam casting is similar to the type and specification of chills in common casting; the cold iron is placed to accelerate the solidification speed of the casting, refine the grain structure and improve the mechanical property of the casting.
However, the existing chilling block has some disadvantages in practical use, such as a limited contact area between a casting mold and the chilling block, a low heat transfer speed, natural heat dissipation of the chilling block, and a poor cooling effect.
Therefore, it is necessary to provide a special chill structure for casting a large-scale numerical control horizontal machining center bed to solve the problems.
Disclosure of Invention
The invention aims to provide a special chiller structure for casting a large numerical control horizontal machining center lathe bed, wherein a tooth-shaped groove on a chiller body increases the contact area of the chiller body and a sand separation layer, so that the cooling speed is improved, meanwhile, liquid is filled into a cooling cavity through a first connecting pipe in the pouring process, and the liquid in the cooling cavity flows to the next cooling cavity through the first connecting pipe, so that the liquid flows in a chiller mechanism group, the heat is taken out, the optimal cooling effect is achieved, and the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a cast large-scale numerical control horizontal machining center lathe bed special type chill structure, includes the workstation, the workstation includes workstation and lower workstation, the workstation bottom is located to lower workstation, it is equipped with sand-proof layer to go up between workstation and the lower workstation, it is equipped with the die cavity to go up the inside of workstation, the workstation top is equipped with the ingate, workstation bottom nested cover is equipped with chill mechanism group down, chill mechanism group includes a plurality of chill mechanisms, chill mechanism includes the chill body, the inside cooling chamber that is equipped with of chill body, chill body top is equipped with the tooth-shaped groove, chill body both sides all are equipped with first connecting pipe.
Preferably, a cavity liquid inlet is formed in the top of the workbench.
Preferably, the top of the workbench is provided with a heat dissipation groove, the outer side of the workbench is provided with a cross gate, and the cross gate is provided with a straight gate.
Preferably, sealing plugs are fixedly arranged at both ends of the sprue.
Preferably, the horizontal runner is connected with a second connecting pipe, and the horizontal runner is connected with the inner sprue through the second connecting pipe.
Preferably, the first connecting pipes on the chilling block mechanisms at two ends in the chilling block mechanism group are connected with a water source.
Preferably, the first connecting pipe penetrates through the chiller body and extends to the interior of the cooling cavity.
Preferably, the inner gate is arranged at the bottom of the cavity, and the cavity is communicated with the inner gate.
The invention has the technical effects and advantages that:
1. the tooth-shaped groove on the chilling block body increases the contact area of the chilling block body and the sand separation layer, so that the cooling speed is improved, meanwhile, liquid is filled into the cooling cavity through the first connecting pipe in the pouring process, and the liquid in the cooling cavity flows to the next cooling cavity through the first connecting pipe, so that the liquid flows in the chilling block mechanism, the heat is taken out, and the optimal cooling effect is achieved;
2. molten iron is added from the sprue, is dispersed into the ingate through the cross gate and the second connecting pipe, and then uniformly enters the cavity from the ingate, so that the effect of simultaneously entering multiple points is achieved, the temperature field distribution of the ingate in multiple point section is uniform, and the heat in the molten iron is rapidly and uniformly transferred;
3. the arrangement of the heat dissipation groove can increase the heat dissipation area of the top of the workbench, so that the cooling speed is increased again.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of a chiller mechanism set according to the present invention.
Fig. 3 is an overall top view of the present invention.
In the figure: 1 workstation, 2 last workstations, 3 lower workstations, 4 sand insulation, 5 die cavities, 6 ingates, 7 chill mechanism groups, 8 chill mechanism, 9 chill body, 10 cooling chamber, 11 tooth-shaped groove, 12 first connecting pipe, 13 die cavity inlet, 14 radiating groove, 15 cross gate, 16 sprue.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a special chiller structure for a lathe bed of a large-scale numerical control horizontal machining center as shown in figures 1-3, which comprises a workbench 1, wherein the workbench 1 comprises an upper workbench 2 and a lower workbench 3, the lower workbench 3 is arranged at the bottom of the upper workbench 2, a sand separation layer 4 is arranged between the upper workbench 2 and the lower workbench 3, a cavity 5 is arranged inside the upper workbench 2, an inner pouring gate 6 is arranged at the top of the workbench 1, a chiller mechanism group 7 is nested at the bottom of the lower workbench 3, the chiller mechanism group 7 comprises a plurality of chiller mechanisms 8, each chiller mechanism 8 comprises a chiller body 9, a cooling cavity 10 is arranged inside the chiller body 9, a tooth-shaped groove 11 is arranged at the top of the chiller body 9, and first connecting pipes 12 are arranged on two sides of the chiller body 9.
Known from the above-mentioned embodiment, tooth form groove 11 on chiller body 9 makes chiller body 9 increase the area with sand control layer 4 contact to improve cooling rate, fill up liquid through first connecting pipe 12 to cooling chamber 10 in the pouring process simultaneously, liquid rethread first connecting pipe 12 in cooling chamber 10 flows to next cooling chamber 10, thereby makes liquid flow in chiller mechanism group 7, thereby takes the heat out, reaches best cooling effect.
Example 2
As can be obtained from embodiment 1, in the above technical solution, the top of the workbench 1 is provided with a cavity liquid inlet 13, the top of the workbench 1 is provided with a heat dissipation groove 14 and a cross runner 15, the cross runner 15 is provided with a sprue 16 for filling molten iron into the cavity 5 so as to facilitate processing of castings, both ends of the sprue 16 are fixedly provided with sealing plugs so as to prevent the molten iron from flowing out from both ends of the sprue 16, the cross runner 15 is connected with a second connecting pipe, the cross runner 15 is connected with the ingate 6 through the second connecting pipe, the first connecting pipe 12 on the chill mechanism 8 at both ends in the chill mechanism group 7 is connected with a water source so that liquid at the water source flows into the cooling cavity 10 through the second connecting pipe 12, the first connecting pipe 12 penetrates through the chill body 9 and extends into the cooling cavity 10, the ingate 6 is arranged at the bottom of the cavity 5, the die cavity 5 communicates with the ingate 6, so that when molten iron is added through the sprue 16, the molten iron enters the ingate 6 through the cross gate 15 and the second connecting pipe in a dispersing manner, and then the molten iron uniformly enters the die cavity 5 through the ingate 6, so that the effect of simultaneously entering multiple points is achieved, the distribution of the temperature field of the ingate in the multiple point section is uniform, and the heat in the molten iron is rapidly and uniformly transferred.
This practical theory of operation: when casting, molten iron is added from the sprue 16, is dispersed into the ingate 6 through the cross gate 15 and the second connecting pipe, and then uniformly enters the cavity 5 from the ingate 6, thereby achieving the effect of simultaneously entering multiple points, realizing uniform distribution of the temperature field of the inner pouring gate of the multiple point section, thereby facilitating the rapid and uniform transmission of heat in the molten iron, the tooth-shaped groove 11 on the chiller body 9 increases the contact area of the chiller body 9 and the sand separation layer 4, thereby increasing the cooling rate, and at the same time, during the casting process, the cooling chamber 10 is filled with the liquid through the first connection pipe 12, the liquid in the cooling chamber 10 flows to the next cooling chamber 10 through the first connection pipe 12, so that the liquid flows in the chilling block mechanism group 7, the heat is taken out, the best cooling effect is achieved, the heat dissipation area of the top of the workbench 1 can be increased due to the arrangement of the heat dissipation grooves 14, and the cooling speed is increased again.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (1)
1. The utility model provides a cast large-scale numerical control horizontal machining center lathe bed special type chill structure, includes workstation (1), its characterized in that: the cooling device comprises a workbench (1) and a cooling mechanism, wherein the workbench (1) comprises an upper workbench (2) and a lower workbench (3), the lower workbench (3) is arranged at the bottom of the upper workbench (2), a sand separation layer (4) is arranged between the upper workbench (2) and the lower workbench (3), a cavity (5) is arranged in the upper workbench (2), an inner pouring gate (6) is arranged at the top of the workbench (1), a chilling unit (7) is nested at the bottom of the lower workbench (3), the chilling unit (7) comprises a plurality of chilling mechanisms (8), each chilling mechanism (8) comprises a chilling body (9), a cooling cavity (10) is arranged in the chilling body (9), a tooth-shaped groove (11) is arranged at the top of the chilling body (9), and first connecting pipes (12) are arranged on two sides of the chilling body (9);
a cavity liquid inlet (13) is formed in the top of the workbench (1);
the top of the workbench (1) is provided with a heat dissipation groove (14), the outer side of the workbench is provided with a cross gate (15), and the cross gate (15) is provided with a straight gate (16);
sealing plugs are fixedly arranged at two ends of the sprue (16);
the horizontal pouring gate (15) is connected with a second connecting pipe, and the horizontal pouring gate (15) is connected with the inner pouring gate (6) through the second connecting pipe;
a water source is connected to the first connecting pipe (12) on the chilling block mechanism (8) at two ends in the chilling block mechanism group (7);
the first connecting pipe (12) penetrates through the cold iron body (9) and extends to the inside of the cooling cavity (10);
the inner pouring gate (6) is arranged at the bottom of the cavity (5), and the cavity (5) is communicated with the inner pouring gate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810330027.5A CN108311657B (en) | 2018-04-13 | 2018-04-13 | Special chilling block structure for casting large-scale numerical control horizontal machining center lathe bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810330027.5A CN108311657B (en) | 2018-04-13 | 2018-04-13 | Special chilling block structure for casting large-scale numerical control horizontal machining center lathe bed |
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| Publication Number | Publication Date |
|---|---|
| CN108311657A CN108311657A (en) | 2018-07-24 |
| CN108311657B true CN108311657B (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810330027.5A Active CN108311657B (en) | 2018-04-13 | 2018-04-13 | Special chilling block structure for casting large-scale numerical control horizontal machining center lathe bed |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120984842A (en) * | 2025-08-19 | 2025-11-21 | 四川省金镭重工有限公司 | A process for preventing hot cracking in the contact area between cast steel parts and chills. |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU933221A1 (en) * | 1980-04-24 | 1982-06-07 | Грузинский Ордена Ленина И Ордена Трудового Красного Знамени Политехнический Институт Им.В.И.Ленина | Metallic mould for casting iron chill moulds |
| JPS59225872A (en) * | 1983-06-08 | 1984-12-18 | Nissan Motor Co Ltd | Casting method of hypereutectic aluminum-silicon alloy |
| US6422295B1 (en) * | 1998-11-06 | 2002-07-23 | Volvo Lastvagnar Ab | Method and device for chill molding |
| CN201161287Y (en) * | 2007-12-21 | 2008-12-10 | 宁波日月铸造有限公司 | Water cooling cylinder for casting cylinder shaped casting parts |
| CN102615274A (en) * | 2012-04-14 | 2012-08-01 | 北京新方尊铸造科技有限责任公司 | Method for controlling solidification and cooling of heavy castings |
| JP2012157894A (en) * | 2011-02-01 | 2012-08-23 | Tokyo Seimitsu Kogyo Kk | Chill vent |
| CN202963412U (en) * | 2012-12-05 | 2013-06-05 | 济南圣泉倍进陶瓷过滤器有限公司 | External chiller and external chiller system |
| CN103949618A (en) * | 2014-05-07 | 2014-07-30 | 沈阳工业大学 | Casting heat-recovery and temperature-control chilling block and cooling method of heat recovery |
| CN204094050U (en) * | 2014-09-05 | 2015-01-14 | 宁波永祥铸造有限公司 | A kind of distortion-free opening chill |
| CN208288957U (en) * | 2018-04-13 | 2018-12-28 | 芜湖久弘重工股份有限公司 | A kind of casting large-scale numerical control horizontal machining center lathe bed special type chill structure |
-
2018
- 2018-04-13 CN CN201810330027.5A patent/CN108311657B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU933221A1 (en) * | 1980-04-24 | 1982-06-07 | Грузинский Ордена Ленина И Ордена Трудового Красного Знамени Политехнический Институт Им.В.И.Ленина | Metallic mould for casting iron chill moulds |
| JPS59225872A (en) * | 1983-06-08 | 1984-12-18 | Nissan Motor Co Ltd | Casting method of hypereutectic aluminum-silicon alloy |
| US6422295B1 (en) * | 1998-11-06 | 2002-07-23 | Volvo Lastvagnar Ab | Method and device for chill molding |
| CN201161287Y (en) * | 2007-12-21 | 2008-12-10 | 宁波日月铸造有限公司 | Water cooling cylinder for casting cylinder shaped casting parts |
| JP2012157894A (en) * | 2011-02-01 | 2012-08-23 | Tokyo Seimitsu Kogyo Kk | Chill vent |
| CN102615274A (en) * | 2012-04-14 | 2012-08-01 | 北京新方尊铸造科技有限责任公司 | Method for controlling solidification and cooling of heavy castings |
| CN202963412U (en) * | 2012-12-05 | 2013-06-05 | 济南圣泉倍进陶瓷过滤器有限公司 | External chiller and external chiller system |
| CN103949618A (en) * | 2014-05-07 | 2014-07-30 | 沈阳工业大学 | Casting heat-recovery and temperature-control chilling block and cooling method of heat recovery |
| CN204094050U (en) * | 2014-09-05 | 2015-01-14 | 宁波永祥铸造有限公司 | A kind of distortion-free opening chill |
| CN208288957U (en) * | 2018-04-13 | 2018-12-28 | 芜湖久弘重工股份有限公司 | A kind of casting large-scale numerical control horizontal machining center lathe bed special type chill structure |
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| CN108311657A (en) | 2018-07-24 |
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