CN104209468A - Air cylinder cover water draining sleeve water feeding hole sand core tenon and mounting technique thereof - Google Patents
Air cylinder cover water draining sleeve water feeding hole sand core tenon and mounting technique thereof Download PDFInfo
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- CN104209468A CN104209468A CN201410411330.XA CN201410411330A CN104209468A CN 104209468 A CN104209468 A CN 104209468A CN 201410411330 A CN201410411330 A CN 201410411330A CN 104209468 A CN104209468 A CN 104209468A
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Abstract
The invention discloses an air cylinder cover water draining sleeve water feeding hole sand core tenon and a mounting technique of the tenon. The tenon is characterized in that a water draining sleeve sand core is arranged on a chassis core, convex tenons of the water draining sleeve sand core are inserted in concave tenon pits of the chassis core, non-following tenons are arranged on the contact portions of the convex tenons and the concave tenon pits, the non-following tenons are made in cooperation with concave holes of the concave tenon pits, when the non-following tenons of the convex tenons are arranged in the concave tenon pits, first clearances, second clearances, third clearances, slope distances and the non-following tenons are formed in the clearances between the non-following tenons and the pit walls, the length of the non-following tenons is more than 1/2 of that of the convex tenons, the convex tenons and the non-following tenons are round, and the concave convex pits are round. The technique has the advantages that casting burrs are reduced, core assembling mistake prevention can be achieved, the assembling and positioning precision of the sand core can be improved, and the technique is suitable for the process design of various air cylinder cover water draining sleeve water feeding hole sand core tenons.
Description
Technical field
Patent of the present invention relates to the method for water hole tenon technological design on a kind of cylinder head lower water jacket core, on engine cylinder cap lower water jacket core, in water hole tenon casting Technology Design process, is applied.
Background technology
On traditional cylinder head lower water jacket, water hole tenon shape is to be designed to circle core print with upper water hole shape, at Fig. 1 short transverse the second gap location, be placed with gap, after upper water sleeve core and chassis core core assembly, under Action of Gravity Field, cause upper water sleeve core to deform, the gap smaller in the second gap, 2 place, position, thereby the local sand lump of whole jacket core is moved down, the wall thickness that upper water sleeve core and chassis core form will attenuation, finally causes the local wall thickness of foundry goods inhomogeneous.The theoretical wall thickness of technological design coordinating with chassis core as certain cylinder head lower water jacket core is 6mm, but dissect foundry goods discovery lower water jacket local wall thickness and only have 4.5mm, this example has reflected the final consequence that core distortion causes from another one side, therefore how preventing lower water jacket core to deform after core assembly is casting Technology Design person's technique difficult problem urgently to be resolved hurrily.
Summary of the invention
The object of the invention is to solve the problem that cylinder head lower water jacket core produces distortion after core assembly, this patent also has the advantages such as assembling positioning precision that reduce casting burr, core assembly mistake proofing, improve core in addition.
Technical solution of the present invention is such: water hole core tenon on a kind of cylinder head lower water jacket, comprise the first gap, the second gap, third space, lower water jacket core, chassis core, oblique distance, blind mortise head hole, tenon head, conformal tenon not, it is characterized in that lower water jacket core (4) is on chassis core (5), the tenon head (8) of lower water jacket core (4) inserts the blind mortise head hole (7) of chassis core (5), tenon head (8) is conformal tenon (9) not in blind mortise head hole (7) contact portion, conformal tenon (9) does not coordinate and manufactures with the shrinkage pool in blind mortise head hole (7), when the not conformal tenon (9) of tenon head (8) packs blind mortise head hole (7) into, it is that the first gap (1) is 0mm with the gap of hole wall, the second gap (2) is 0～5mm, third space (3) is 0.1～1.0mm, oblique distance (6) is 5～30mm, the gradient of conformal tenon (9) external diameter is not 3～15 degree, the length of conformal tenon (9) is not the more than 1/2 of tenon head (8), tenon head (8) and not conformal tenon (9) are circular, blind mortise head hole (7) is circular.
Tenon head (8), conformal tenon (9) does not have more than one at lower water jacket core (4).
Blind mortise head hole (7) has more than one at chassis core (5).
Conformal tenon (9) is not cone circle.
Blind mortise head hole (7) is cone circle.
Tenon head (8), blind mortise head hole (7) are consubstantiality.
Tenon head (8) is cylindrical.
Lower water jacket core (4) is loaded onto chassis core (5) above, the tenon head (8) of lower water jacket core (4), that conformal tenon (9) is not enclosed in blind mortise head hole (7) is inner, form between tenon head (8) bottom surface and the cavity floor of chassis core (5) and have the first gap (1), between conformal tenon (9) external diameter and (7) limit, blind mortise head hole wall, there is not third space (3), between conformal tenon (9) bottom face and (7) bottom surface, blind mortise head hole, do not have the second gap (2).
Compared with prior art, outstanding effect of the present invention is: tenon head is designed to 2/3 or 1/2 circle of water hole shape, after core assembly, to core, is not out of shape spacing, thereby reaches the generation of prevention core distortion, further improves the assembling positioning precision of core.Due to 2/3 or 1/2 circle of the just upper water hole of tenon head shape, the casting burr therefore forming is fewer than a whole round-formed casting burr.If the tenon of conformal direction in core assembly process, not to not organizing core, does not therefore have core assembly error-disable function.
Accompanying drawing explanation
Fig. 1 is that single tenon of the present invention coordinates schematic diagram.
Fig. 2 is that two tenons of the present invention coordinate schematic diagram.
Reference numeral: the first gap (1), the second gap (2), third space (3), lower water jacket core (4), chassis core (5), oblique distance (6), blind mortise head hole (7), tenon head (8), conformal tenon (9) not.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1, lower water jacket core (4) is contained in chassis core (5) above, it is inner that not conformal tenon (9) under tenon head (8) packs blind mortise head hole (7) into, conformal tenon (9) external diameter is not inverted cone, there is oblique distance (6), blind mortise head hole (7) is back taper circle, conformal tenon (9) external diameter is not third space (3) to (7) limit, blind mortise head hole wall, conformal tenon (9) bottom face does not have the second gap (2) to (7) bottom surface, blind mortise head hole, tenon head (8) does not have the first gap (1) to not joining boss between conformal tenon (9) to chassis core (5) inner chamber bottom surface.
Embodiment 2, water hole core tenon on a kind of cylinder head lower water jacket, comprise the first gap, the second gap, third space, lower water jacket core, chassis core, oblique distance, blind mortise head hole, tenon head, conformal tenon not, it is characterized in that lower water jacket core (4) is on chassis core (5), the tenon head (8) of lower water jacket core (4) inserts the blind mortise head hole (7) of chassis core (5), tenon head (8) is conformal tenon (9) not in blind mortise head hole (7) contact portion, conformal tenon (9) does not coordinate and manufactures with the shrinkage pool in blind mortise head hole (7), when the not conformal tenon (9) of tenon head (8) packs blind mortise head hole (7) into, it is that the first gap (1) is 0mm with the gap of hole wall, the second gap (2) is 0～5mm, third space (3) is 0.1～1.0mm, oblique distance (6) is 5～30mm, the gradient of conformal tenon (9) external diameter is not 3～15 degree, the length of conformal tenon (9) is not the more than 1/2 of tenon head (8), tenon head (8) and not conformal tenon (9) are circular, blind mortise head hole (7) is circular.Tenon head (8), conformal tenon (9) does not have more than one at lower water jacket core (4).Blind mortise head hole (7) has more than one at chassis core (5), and conformal tenon (9) is not cone circle.Blind mortise head hole (7) is cone circle, and tenon head (8), blind mortise head hole (7) are consubstantiality.Tenon head (8) is cylindrical.Lower water jacket core (4) is loaded onto chassis core (5) above, the tenon head (8) of lower water jacket core (4), that conformal tenon (9) is not enclosed in blind mortise head hole (7) is inner, form between tenon head (8) bottom surface and the cavity floor of chassis core (5) and have the first gap (1), between conformal tenon (9) external diameter and (7) limit, blind mortise head hole wall, there is not third space (3), between conformal tenon (9) bottom face and (7) bottom surface, blind mortise head hole, do not have the second gap (2).
Claims (8)
1. water hole core tenon on a cylinder head lower water jacket, comprise the first gap, the second gap, third space, lower water jacket core, chassis core, oblique distance, blind mortise head hole, tenon head, conformal tenon not, it is characterized in that lower water jacket core (4) is on chassis core (5), the tenon head (8) of lower water jacket core (4) inserts the blind mortise head hole (7) of chassis core (5), tenon head (8) is conformal tenon (9) not in blind mortise head hole (7) contact portion, conformal tenon (9) does not coordinate and manufactures with the shrinkage pool in blind mortise head hole (7), when the not conformal tenon (9) of tenon head (8) packs blind mortise head hole (7) into, it is that the first gap (1) is 0mm with the gap of hole wall, the second gap (2) is 0～5mm, third space (3) is 0.1～1.0mm, oblique distance (6) is 5～30mm, the gradient of conformal tenon (9) external diameter is not 3～15 degree, the length of conformal tenon (9) is not the more than 1/2 of tenon head (8), tenon head (8) and not conformal tenon (9) are circular, blind mortise head hole (7) is circular.
2. according to water hole core tenon on cylinder head lower water jacket claimed in claim 1, it is characterized in that tenon head (8), conformal tenon (9) does not have more than one at lower water jacket core (4).
3. according to water hole core tenon on cylinder head lower water jacket claimed in claim 1, it is characterized in that blind mortise head hole (7) has more than one at chassis core (5).
4. according to water hole core tenon on cylinder head lower water jacket claimed in claim 1, it is characterized in that conformal tenon (9) is not cone circle.
5. according to water hole core tenon on cylinder head lower water jacket claimed in claim 1, it is characterized in that blind mortise head hole (7) is for cone circle.
6. according to water hole core tenon on cylinder head lower water jacket claimed in claim 1, it is characterized in that tenon head (8), blind mortise head hole (7) are consubstantiality.
7. according to water hole core tenon on cylinder head lower water jacket claimed in claim 1, it is characterized in that tenon head (8) is for cylindrical.
8. the mounting process method of water hole core tenon on a cylinder head lower water jacket, it is characterized in that lower water jacket core (4) loads onto chassis core (5) above, the tenon head (8) of lower water jacket core (4), that conformal tenon (9) is not enclosed in blind mortise head hole (7) is inner, form between tenon head (8) bottom surface and the cavity floor of chassis core (5) and have the first gap (1), between conformal tenon (9) external diameter and (7) limit, blind mortise head hole wall, there is not third space (3), between conformal tenon (9) bottom face and (7) bottom surface, blind mortise head hole, do not have the second gap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411330.XA CN104209468B (en) | 2014-08-21 | 2014-08-21 | Water hole core tenon and mounting process method thereof on cylinder head lower water jacket |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410411330.XA CN104209468B (en) | 2014-08-21 | 2014-08-21 | Water hole core tenon and mounting process method thereof on cylinder head lower water jacket |
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| CN104209468A true CN104209468A (en) | 2014-12-17 |
| CN104209468B CN104209468B (en) | 2016-08-24 |
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| CN201410411330.XA Active CN104209468B (en) | 2014-08-21 | 2014-08-21 | Water hole core tenon and mounting process method thereof on cylinder head lower water jacket |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127375A (en) * | 2015-10-10 | 2015-12-09 | 四川南车共享铸造有限公司 | Method for machining sand core of intermediate and 3D-printed sand core of intermediate |
| CN106001432A (en) * | 2016-07-18 | 2016-10-12 | 宁夏共享模具有限公司 | Core assembly positioning detection system of 3D printing sand cores |
| CN107030262A (en) * | 2017-05-04 | 2017-08-11 | 宁夏共享模具有限公司 | A kind of self-locking type location structure of 3D printing core for heavy castings |
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| JPS63199047A (en) * | 1987-02-13 | 1988-08-17 | Honda Motor Co Ltd | Method for setting core for casting cylinder head of internal combustion engine into die |
| CN2860676Y (en) * | 2005-12-31 | 2007-01-24 | 广西玉柴机器股份有限公司 | Water channel core of engine cylinder cap |
| CN201136041Y (en) * | 2007-12-26 | 2008-10-22 | 广西玉柴机器股份有限公司 | Casting core for cylinder block |
| CN101468383A (en) * | 2007-12-26 | 2009-07-01 | 广西玉柴机器股份有限公司 | Method for casting cylinder cover of multicylinder one-cover engine |
| CN201702319U (en) * | 2010-07-07 | 2011-01-12 | 广西玉柴机器股份有限公司 | Sand mould of cylinder cover of engine |
| CN203695868U (en) * | 2014-03-04 | 2014-07-09 | 广西玉柴机器股份有限公司 | Self-hardening sand mold |
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2014
- 2014-08-21 CN CN201410411330.XA patent/CN104209468B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63199047A (en) * | 1987-02-13 | 1988-08-17 | Honda Motor Co Ltd | Method for setting core for casting cylinder head of internal combustion engine into die |
| CN2860676Y (en) * | 2005-12-31 | 2007-01-24 | 广西玉柴机器股份有限公司 | Water channel core of engine cylinder cap |
| CN201136041Y (en) * | 2007-12-26 | 2008-10-22 | 广西玉柴机器股份有限公司 | Casting core for cylinder block |
| CN101468383A (en) * | 2007-12-26 | 2009-07-01 | 广西玉柴机器股份有限公司 | Method for casting cylinder cover of multicylinder one-cover engine |
| CN201702319U (en) * | 2010-07-07 | 2011-01-12 | 广西玉柴机器股份有限公司 | Sand mould of cylinder cover of engine |
| CN203695868U (en) * | 2014-03-04 | 2014-07-09 | 广西玉柴机器股份有限公司 | Self-hardening sand mold |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127375A (en) * | 2015-10-10 | 2015-12-09 | 四川南车共享铸造有限公司 | Method for machining sand core of intermediate and 3D-printed sand core of intermediate |
| CN106001432A (en) * | 2016-07-18 | 2016-10-12 | 宁夏共享模具有限公司 | Core assembly positioning detection system of 3D printing sand cores |
| CN107030262A (en) * | 2017-05-04 | 2017-08-11 | 宁夏共享模具有限公司 | A kind of self-locking type location structure of 3D printing core for heavy castings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104209468B (en) | 2016-08-24 |
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