CN211227386U - Clamp for hard anodic oxidation of aluminum piston - Google Patents
Clamp for hard anodic oxidation of aluminum piston Download PDFInfo
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- CN211227386U CN211227386U CN201921946739.6U CN201921946739U CN211227386U CN 211227386 U CN211227386 U CN 211227386U CN 201921946739 U CN201921946739 U CN 201921946739U CN 211227386 U CN211227386 U CN 211227386U
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Abstract
The utility model provides an anchor clamps that aluminium piston stereoplasm anodic oxidation used relates to aluminium piston technical field, has solved the technical problem that can't satisfy the anodic oxidation requirement that extends whole piston top with the anodic oxidation region. The clamp comprises a pressure ring, a base and a sealing ring; the compression ring at least comprises two sections of arc-shaped blocks, and arc-shaped bulges matched with the third ring groove of the aluminum piston are arranged on the inner sides of the two sections of arc-shaped blocks; the base is of a cylindrical structure with openings at two ends, and the appearance of the base is matched with the spraying station structure of anodic oxidation; one end of the base, which is close to the first ring groove of the aluminum piston, is provided with a clamping step matched with the pressure ring; the inner side of the clamping step is provided with an inclined surface which inclines towards the first ring groove of the aluminum piston; the sealing ring is sleeved between the first annular groove and the second annular groove of the aluminum piston. The utility model is used for the oxidation at the whole piston top of aluminium piston, simple structure, the practicality is high.
Description
Technical Field
The utility model relates to an aluminium piston technical field especially relates to an anchor clamps that aluminium piston stereoplasm anodic oxidation used.
Background
In the prior art, the piston anode oxidation is to convert the surface layer of the aluminum alloy into a layer of high-density Al2O3The oxide film has excellent heat insulating property, and can form heat barrier at the easy-to-crack position to slow down the invasion of heat flow, so that the piston can effectively raise its thermal fatigue strength after being oxidized by hard anode.
The traditional piston anode oxidation area is the piston head, in order to improve the corrosion and heat resistance of the firepower bank and the first ring groove of the piston and prolong the service life of the piston, the anode oxidation area is expanded to the whole top of the piston (comprising the top surface, a combustion chamber, the firepower bank and a ring groove area). The existing anodizing fixture can not meet the new anodizing requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anchor clamps that aluminium piston stereoplasm anodic oxidation used to solve the anodic oxidation anchor clamps among the prior art and can't satisfy the technical problem who extends the anodic oxidation requirement at whole piston top with the anodic oxidation region. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a clamp for hard anodizing of an aluminum piston comprises a pressure ring, a base and a sealing ring; wherein the content of the first and second substances,
the compression ring at least comprises two sections of arc-shaped blocks, and the inner sides of the two sections of arc-shaped blocks are provided with a first bulge matched with the third ring groove of the aluminum piston;
the base is of a cylindrical structure with openings at two ends, and the appearance of the base is matched with the spraying station structure of anodic oxidation; one end of the base, which is close to the first ring groove of the aluminum piston, is provided with a clamping step matched with the pressure ring; the inner side of the clamping step is provided with an inclined surface which inclines towards the first ring groove of the aluminum piston;
when the pressing ring, the base and the sealing ring are installed on the aluminum piston, the pressing ring is clamped on the clamping step, and the first bulge of the pressing ring is clamped in the third annular groove of the aluminum piston; the sealing ring is sleeved between the first annular groove and the second annular groove of the aluminum piston, is positioned on the inclined plane, and is connected with the bottom of the compression ring at the top; the first ring groove of the aluminum piston is located outside the base.
Optionally or preferably, an annular groove is formed between the first ring groove and the second ring groove of the aluminum piston, and the sealing ring is matched with the annular groove.
Optionally or preferably, a second protrusion is arranged at the position where the pressing ring is connected with the sealing ring.
Optionally or preferably, the inclined surface has an angle θ of 45 ° to 75 ° with the axis of the base.
Optionally or preferably, the inclined surface has an angle θ of 60 ° with the axis of the base.
Alternatively or preferably, the pressure ring is two identical segments of the 180 ° arc pieces.
Based on the technical scheme, the embodiment of the utility model provides a can produce following technological effect at least:
when the clamp for hard anodizing of the aluminum piston is used, the base is firstly installed on a specified spraying station for anodizing; then installing a sealing ring between a first ring groove and a second ring groove of the aluminum piston and installing a multi-section arc-shaped block compression ring on a third ring groove of the aluminum piston; then, the piston with the sealing ring and the arc-shaped block compression ring installed is placed in the base, and the sealing ring is in contact with the inclined plane; and finally, when the skirt part of the aluminum piston is pressed under the action of the pressing block, the pressure is transmitted to the sealing ring through the pressing block, the aluminum piston and the pressing ring. Because the inner side of the clamping step in the base is provided with the inclined plane inclined towards the first ring groove of the aluminum piston, and the sealing ring is sleeved on the aluminum piston, the sealing ring can be firmly pressed between the base and the aluminum piston under the direct acting force of the pressing ring to form a sealing structure, so that the anodic oxidation of the top of the whole piston can be conveniently carried out. The utility model discloses the leakproofness is good, can part the oxidation region and the non-oxidation region of aluminium piston well, with the regional whole piston top that extends of anodic oxidation, improves the corrosion-resistant heat resistance of piston firepower bank and first annular, improves piston life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is an installation schematic of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an aluminum piston in an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a base according to an embodiment of the present invention;
FIG. 4 is a partial enlarged view of the base A of the embodiment of the present invention;
fig. 5 is a schematic structural view of a pressure ring in an embodiment of the present invention;
fig. 6 is a partial enlarged view of the portion of the compression ring B in the embodiment of the present invention.
In the figure: 1-a compaction block; 2-an aluminum piston; 21-a first ring groove; 22-a second ring groove; 23-a third ring groove; 24-an annular groove; 3-a base; 31-a bevel; 32-a clamping step; 33-mounting a step; 4-pressing a ring; 41-bulge I; 42-convex two; 5-sealing ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will describe the technical solutions of the present invention in detail. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-6:
a clamp for hard anodizing of an aluminum piston comprises a pressure ring 4, a base 3 and a sealing ring 5; wherein the content of the first and second substances,
the compression ring 4 at least comprises two sections of arc-shaped blocks, and the inner sides of the two sections of arc-shaped blocks are provided with first bulges 41 matched with the third ring grooves 23 of the aluminum piston 2; the design of the pressure ring 4 as a multi-segment split arc-shaped piece is made because it is convenient to mount the pressure ring 4 to the third ring groove 23 of the aluminum piston 2.
The base 3 is of a cylindrical structure with openings at two ends, the appearance of the base 3 is matched with the anodized spraying station structure, and the outer side of the base 3 is provided with a circle of mounting steps 33 for axially limiting the base 3 when the base 3 is mounted on a specified station; one end of the base 3, which is close to the first ring groove 21 of the aluminum piston 2, is provided with a clamping step 32 matched with the pressing ring 4; the inner side of the clamping step 32 is provided with a slope 31, and the slope 31 inclines towards the first ring groove 21 of the aluminum piston 2;
when the pressing ring 4, the base 3 and the sealing ring 5 are installed on the aluminum piston 2, the pressing ring 4 is clamped on the clamping step 32, and the first bulge 41 of the pressing ring 4 is clamped in the third annular groove 23 of the aluminum piston 2; the sealing ring 5 is sleeved between the first ring groove 21 and the second ring groove 22 of the aluminum piston 2, the sealing ring 5 is positioned on the inclined surface 31, and the top of the sealing ring 5 is connected with the bottom of the pressing ring 4; the first ring groove 21 of the aluminum piston 2 is located outside the base 3.
The clamping step 32 is mainly used for limiting the axial line of the pressing ring 4 and preventing the sealing ring 5 from being damaged due to the fact that the acting force of the pressing ring 4 is concentrated on the sealing ring 5; the first bulge 41 is mainly used for fixing the pressure ring 4 on the aluminum piston 2, and external force is transmitted to the pressure ring 4 through the first bulge 41; inclined plane 31 has very important influence to the leakproofness of whole anchor clamps, because the space size trend of change that inclined plane 31 and the 2 outsides of aluminium piston constitute does, is close to the first annular 21 of aluminium piston 2 more, and the space is less, just because like this sealing washer 5 can seal up the space between base 3 and the aluminium piston 2 under the direct effort of clamping ring 4, sealing washer 5 choose O type circle for use.
In an alternative embodiment, an annular groove 24 is defined between the first ring groove 21 and the second ring groove 22 of the aluminum piston 2, and the sealing ring 5 is matched with the annular groove 24. The annular groove 24 is provided to increase the contact area between the seal ring 5 and the aluminum piston 2, and to prevent the seal ring 5 and the aluminum piston 2 from moving in the axial direction of the aluminum piston 2, thereby enhancing the sealing safety.
In an alternative embodiment, the pressing ring 4 is provided with a second protrusion 42 at a position where the pressing ring is connected with the sealing ring 5. The height of the second bulge 42 is 0.2-0.5 mm (preferably 0.3 mm), and the second bulge 42 is arranged to increase the pressure on the sealing ring 5 and enhance the sealing safety.
As an optional embodiment, because θ is an included angle between the inclined surface 31 and the axis of the base 3, θ cannot be too large or too small, too large θ will cause the acting force of the pressing ring 4 on the sealing ring 5 to be concentrated on the inclined surface 31, so that a gap is generated between the sealing ring 5 and the aluminum piston 2, and too small θ will cause the acting force of the pressing ring 4 on the sealing ring 5 to be concentrated in the annular groove 24 of the aluminum piston 2, so that a gap is generated between the sealing ring 5 and the inclined surface 31, which are both unfavorable for sealing; therefore, the comprehensive desirable theta is 45-75 degrees.
As an alternative embodiment, the sealing effect is best when the included angle θ between the inclined surface 31 and the axis of the base 3 is 60 °.
As an alternative embodiment, the pressure ring 4 is two identical segments of an 180 ° arc-shaped block; the two sections of same 180-degree arc-shaped blocks are spliced to form a circular ring shape, and the pressing ring 4 is arranged into the two sections of same arc-shaped blocks, so that the number of parts can be reduced, and the installation is facilitated.
The utility model discloses a use method does:
firstly, mounting a base 3 on a specified anodic oxidation spraying station; then installing the sealing ring 5 into the annular groove 24 of the aluminum piston 2 and installing the multi-section arc-shaped block pressing ring 4 into the third annular groove 23 of the aluminum piston 2; next, the piston 2 with the sealing ring 5 and the arc-shaped block pressing ring 4 installed is placed in the base 3, and the sealing ring 5 is in contact with the inclined surface 31. At the moment, the pressing block 1 is in contact with the skirt portion of the aluminum piston 2, then the pressing block 1 is used for pressing the skirt portion of the aluminum piston 2, an external force presses the sealing ring 5 in the inclined surface 31 of the base 3 and the annular groove 24 of the aluminum piston 2 through the pressing block 1-aluminum piston 2-pressing ring 4 to complete sealing, and finally, the oxidation operation of the top of the whole aluminum piston 2 (comprising a top surface, a combustion chamber, a fire bank and an annular groove area) is carried out.
The utility model has the advantages of simple operation, sealing performance is good, can part the oxidation region and the non-oxidation region of aluminium piston 2 well, extends whole piston top with the anodic oxidation region, improves the corrosion-resistant heat resistance of piston firepower bank and first annular 21, improves piston life.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a anchor clamps that aluminium piston stereoplasm anodic oxidation used which characterized in that: comprises a press ring (4), a base (3) and a sealing ring (5); wherein the content of the first and second substances,
the compression ring (4) at least comprises two sections of arc-shaped blocks, and the inner sides of the two sections of arc-shaped blocks are provided with first bulges (41) matched with the third ring grooves (23) of the aluminum piston (1);
the base (3) is of a cylindrical structure with openings at two ends, and the appearance of the base (3) is matched with the spraying station structure of anodic oxidation; one end of the base (3), which is close to the first ring groove (21) of the aluminum piston (1), is provided with a clamping step (32) matched with the pressing ring (4); the inner side of the clamping step (32) is provided with an inclined surface (31), and the inclined surface (31) inclines towards the first ring groove (21) of the aluminum piston (1);
when the pressing ring (4), the base (3) and the sealing ring (5) are mounted on the aluminum piston (1), the pressing ring (4) is clamped on the clamping step (32), and the first bulge (41) of the pressing ring (4) is clamped in the third annular groove (23) of the aluminum piston (1); the sealing ring (5) is sleeved between a first annular groove (21) and a second annular groove (22) of the aluminum piston (1), the sealing ring (5) is located on the inclined surface (31), and the top of the sealing ring (5) is connected with the bottom of the pressing ring (4); the first ring groove (21) of the aluminum piston (1) is located on the outer side of the base (3).
2. The clamp for hard anodizing of the aluminum piston according to claim 1, wherein: an annular groove (24) is formed between the first annular groove (21) and the second annular groove (22) of the aluminum piston (1), and the sealing ring (5) is matched with the annular groove (24).
3. The clamp for hard anodizing of the aluminum piston according to claim 2, wherein: and a second bulge (42) is arranged at the position where the pressing ring (4) is connected with the sealing ring (5).
4. The aluminum piston hard anodizing clamp according to any one of claims 1 to 3, wherein: the included angle theta between the inclined surface (31) and the axis of the base (3) is 45-75 degrees.
5. The clamp for hard anodizing of the aluminum piston according to claim 4, wherein: the included angle theta between the inclined surface (31) and the axis of the base (3) is 60 degrees.
6. The clamp for hard anodizing of the aluminum piston according to claim 5, wherein: the pressure ring (4) is formed by two identical segments of 180-degree arc-shaped blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921946739.6U CN211227386U (en) | 2019-11-12 | 2019-11-12 | Clamp for hard anodic oxidation of aluminum piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921946739.6U CN211227386U (en) | 2019-11-12 | 2019-11-12 | Clamp for hard anodic oxidation of aluminum piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211227386U true CN211227386U (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921946739.6U Active CN211227386U (en) | 2019-11-12 | 2019-11-12 | Clamp for hard anodic oxidation of aluminum piston |
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| CN (1) | CN211227386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737244A (en) * | 2021-08-30 | 2021-12-03 | 贵州新安航空机械有限责任公司 | Plug-shaped hard anodizing tool |
| CN114717627A (en) * | 2021-01-04 | 2022-07-08 | 善统工业股份有限公司 | Jig for metal object anodic treatment |
-
2019
- 2019-11-12 CN CN201921946739.6U patent/CN211227386U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717627A (en) * | 2021-01-04 | 2022-07-08 | 善统工业股份有限公司 | Jig for metal object anodic treatment |
| CN114717627B (en) * | 2021-01-04 | 2024-04-19 | 善统工业股份有限公司 | Jig for anodic treatment of metal object |
| CN113737244A (en) * | 2021-08-30 | 2021-12-03 | 贵州新安航空机械有限责任公司 | Plug-shaped hard anodizing tool |
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