CN202894224U - Salt core washing natural shape tool - Google Patents
Salt core washing natural shape tool Download PDFInfo
- Publication number
- CN202894224U CN202894224U CN 201220646839 CN201220646839U CN202894224U CN 202894224 U CN202894224 U CN 202894224U CN 201220646839 CN201220646839 CN 201220646839 CN 201220646839 U CN201220646839 U CN 201220646839U CN 202894224 U CN202894224 U CN 202894224U
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- CN
- China
- Prior art keywords
- piston
- blank
- positioning tool
- salt core
- positioning
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- Expired - Fee Related
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Abstract
The utility model discloses a salt core washing natural shape tool, which comprises a nested spray rod and a blank positioning tool, wherein the bottom of the blank positioning tool is provided with a mounting hole penetrating through the top; the upper end of the nested spray rod passes through the bottom of the mounting hole to extend out of the top of the mounting hole; the lower end of the nested spray rod is connected with a water inlet pipe; the periphery of the top of the mounting hole is provided with a boss; the appearance of the boss is cooperated with the shape of the oil inlet and outlet of a piston; the end surface of the boss is cooperated with the end surface of the oil inlet and outlet of the piston; the middle of the blank positioning tool is provided with a positioning lacking seam allowance circular-arc surface and a positioning seam allowance end plane; and the positioning lacking seam allowance circular-arc surface and the positioning seam allowance end plane are respectively cooperated with the lacking seam allowance and the seam allowance end plane of a piston blank. The integral shape of the blank positioning tool is cooperated with the shape of the inner cavity of the piston, the piston can be always kept at the good horizontal state and higher water inlet water pressure and flow, the water pressure during salt core washing is guaranteed, the sealing effect is good, and the piston blank can be stably and efficiently cleaned.
Description
Technical field
The utility model relates to a kind of interior oil cooling passage shaping salt core flushing device, relates in particular to a kind of salt core flushing conformal frock.
Background technology
Along with the raising of diesel engine strengthening degree, thermic load and mechanical load that piston is born increase considerably.For guaranteeing that piston crown has enough intensity and reduces its thermic load, must produce an inner cooling path consistent with piston coaxial degree and perpendicularity height near near first and second annular groove with water-soluble core at top land, piston is forced cooling.Adopt the inner cooling path structure can reduce the temperature at top land and annular groove position, the temperature at each position of piston is controlled in the rational limit value, guaranteed piston and piston ring functional reliability.Water-soluble core generally refers to the salt core of the making take water soluble salt as matrix, is characterized in meeting water-soluble solution, is convenient to depoling.Aluminium casting for piston process adopts sodium chloride compacting salt core more and is cast into piston blank and forms interior oil cooling passage.After the salt core was cast into piston blank, subsequent handling must be by solvent with salt core dissolving and take blank out of, and then makes the inner cooling path final molding of piston.Generally adopt at present the circulating water dissolving salt core of certain pressure, the conveying device of current is a fixing circular spray boom, and blank oil inlet and outlet one end is directly inserted the laggard row flushing of circular spray boom.But because of interior cold piston model more, the inner cooling path oil inlet and outlet of each piston is different, the spray boom head in most cases can't be complementary with inner cooling path oil inlet and outlet shape, can cause a large amount of losses when current enter inner cooling path through the cooperation place, and then so that the instantaneous hydraulic pressure of water inlet far below technological requirement.In addition after the piston oil inlet and outlet inserts spray boom because the force position of spray boom in a side of piston, causes piston blank can't keep level, and then oil cooling passage always is in heeling condition in the process of washing the salt core.The inclination of piston blank can cause spray boom and piston blank turnover oilhole the slit to occur, partly deviate from when serious or even all deviate from, cause hydraulic pressure to reduce, flow reduces, in the inner salt core dissolving of developing technique stipulated time not exclusively, the final oil duct in piston that forms has salt residue.
Summary of the invention
The purpose of this utility model is exactly the problems referred to above and the deficiency that exists in order to solve prior art; A kind of salt core flushing conformal frock is provided; In flushing process, can keep piston to remain good level and higher water inlet hydraulic pressure, flow, when having satisfied the flushing of salt core to the requirement of piston blank levelness, hydraulic pressure when having guaranteed the flushing of salt core, the cleaning piston blank can be stablized, be carried out efficiently to good sealing effect.
To achieve these goals, the utility model adopts following technical scheme:
A kind of salt core flushing conformal frock, comprise nested spray boom, the blank positioning tool, blank positioning tool bottom is provided with the installing hole that connects the top, stretch out from the installing hole top after passing from the installing hole bottom nested spray boom upper end, nested spray boom lower end is connected with water inlet pipe, the installing hole top periphery is provided with boss, the oil inlet and outlet form fit of boss profile and piston, raised head face cooperates with piston oil inlet and outlet end face, blank positioning tool middle part is provided with the location and lacks the seam arc surface, the positioning spigot transverse plane, described location lacks the seam arc surface, the positioning spigot transverse plane respectively with the scarce seam of piston blank, the seam transverse plane cooperates, and the bulk shape of blank positioning tool cooperates with the cavity shape of piston.
The blank positioning tool is processed by nylon block.
The beneficial effects of the utility model: the oil inlet and outlet form fit of the utility model boss profile and piston, raised head face cooperates with piston oil inlet and outlet end face, blank positioning tool middle part is provided with the location and lacks the seam arc surface, the positioning spigot transverse plane, described location lacks the seam arc surface, the positioning spigot transverse plane respectively with the scarce seam of piston blank, the seam transverse plane cooperates, the bulk shape of blank positioning tool cooperates with the cavity shape of piston, and current are played good sealing function, in flushing process, can keep piston to remain good level and higher water inlet hydraulic pressure, flow, when having satisfied the flushing of salt core to the requirement of piston blank levelness, hydraulic pressure when having guaranteed the flushing of salt core, good sealing effect can be stablized, carry out efficiently the cleaning piston blank.
Description of drawings
Fig. 1 is nested spray boom schematic diagram;
Fig. 2 is the positioning tool front view;
Fig. 3 is the positioning tool top view;
Wherein, 1, nested spray boom, 2, boss, 3, the location lacks the seam arc surface, 4, the positioning spigot transverse plane, 5, installing hole, 6, raised head face, 7, nested spray boom lower end, 8, nested spray boom upper end.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
A kind of salt core flushing conformal frock, comprise nested spray boom 1, the blank positioning tool, blank positioning tool bottom is provided with the installing hole 5 that connects the top, stretch out from the installing hole top after passing from installing hole 5 bottoms nested spray boom upper end 8, nested spray boom lower end 7 is connected with water inlet pipe, installing hole 5 top periphery are provided with boss 2, the oil inlet and outlet form fit of boss 2 profiles and piston, raised head face 6 cooperates with piston oil inlet and outlet end face, blank positioning tool middle part is provided with the location and lacks seam arc surface 3, positioning spigot transverse plane 4, described location lacks seam arc surface 3, positioning spigot transverse plane 4 respectively with the scarce seam of piston blank, the seam transverse plane cooperates, and the bulk shape of blank positioning tool cooperates with the cavity shape of piston.The overall dimension of frock except with piston location mating surface all the other sizes all reduce 0.3mm～0.5mm, be beneficial to the piston blank blank positioning tool of packing into smoothly.The locating surface of frock lacks seam arc surface and positioning spigot transverse plane for the location, and piston blank is packed into and can be kept very high levelness behind the positioning tool.The blank positioning tool is processed by nylon block.
The blank positioning tool of at first nested spray boom 1 being packed into from installing hole 5 positions during use is fixed on positioning tool on the salt core flushing workbench again.The 7 access inlet pipelines in nested spray boom lower end, with the piston blank inner chamber positioning tool of packing into down, the scarce seam and the seam transverse plane that make the location lack seam arc surface 3 and seam transverse plane 4 and piston blank closely cooperate.According to design size, after stop portion closely cooperated, the boss 2 of positioning tool, raised head face 6 closely cooperated naturally with the oil inlet and outlet place of piston, can carry out the flushing of salt core by normal flow subsequently.
Although above-mentionedly by reference to the accompanying drawings the specific embodiment of utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (2)
1. a salt core washes the conformal frock, it is characterized in that, comprise nested spray boom, the blank positioning tool, it is characterized in that, described blank positioning tool bottom is provided with the installing hole that connects the top, stretch out from the installing hole top after passing from the installing hole bottom nested spray boom upper end, nested spray boom lower end is connected with water inlet pipe, the installing hole top periphery is provided with boss, the oil inlet and outlet form fit of boss profile and piston, raised head face cooperates with piston oil inlet and outlet end face, blank positioning tool middle part is provided with the location and lacks the seam arc surface, the positioning spigot transverse plane, described location lacks the seam arc surface, the positioning spigot transverse plane respectively with the scarce seam of piston blank, the seam transverse plane cooperates, and the bulk shape of blank positioning tool cooperates with the cavity shape of piston.
2. salt core flushing conformal frock as claimed in claim 1 is characterized in that described blank positioning tool is processed by nylon block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646839 CN202894224U (en) | 2012-11-30 | 2012-11-30 | Salt core washing natural shape tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646839 CN202894224U (en) | 2012-11-30 | 2012-11-30 | Salt core washing natural shape tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202894224U true CN202894224U (en) | 2013-04-24 |
Family
ID=48114943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220646839 Expired - Fee Related CN202894224U (en) | 2012-11-30 | 2012-11-30 | Salt core washing natural shape tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202894224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245594A (en) * | 2013-05-21 | 2013-08-14 | 四川大学 | Device for measuring liquid surface tension by pull-out method |
| CN113333365A (en) * | 2021-06-24 | 2021-09-03 | 广西大学 | Piston salt core washing unit |
-
2012
- 2012-11-30 CN CN 201220646839 patent/CN202894224U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245594A (en) * | 2013-05-21 | 2013-08-14 | 四川大学 | Device for measuring liquid surface tension by pull-out method |
| CN113333365A (en) * | 2021-06-24 | 2021-09-03 | 广西大学 | Piston salt core washing unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20151130 |
|
| EXPY | Termination of patent right or utility model |