CN203221367U - Excircle preliminary turning device for pistons - Google Patents
Excircle preliminary turning device for pistons Download PDFInfo
- Publication number
- CN203221367U CN203221367U CN 201220684550 CN201220684550U CN203221367U CN 203221367 U CN203221367 U CN 203221367U CN 201220684550 CN201220684550 CN 201220684550 CN 201220684550 U CN201220684550 U CN 201220684550U CN 203221367 U CN203221367 U CN 203221367U
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- China
- Prior art keywords
- piston
- turning device
- described body
- positioning sleeve
- sleeve
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- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses an excircle preliminary turning device for pistons, which comprises a body shaft. The body shaft is sheathed with a body sleeve, an inner spring and a positioning block. The body sleeve is fixedly connected with the body shaft. One end of the body shaft, positioned closer to the positioning block, is provided with a positioning ejection head. The body sleeve is provided with a positioning sleeve. An outer spring is arranged between the body sleeve and the positioning sleeve. The positioning sleeve is fixedly connected with the body sleeve through a guide flat key. The excircle preliminary turning device for pistons can be well adapted to piston blanks. Even if the location dimension of a piston blank is biased, the technological requirements can still be met.
Description
Technical field
The utility model belongs to piston manufacturing equipment field, particularly the first turning device of a kind of piston.
Background technology
During the piston preliminary working, because inner chamber position, piston location is irregular, it is thin to clamp the force part wall, and requirement on machining accuracy is higher relatively, therefore locatees to add and adopts man-hour space multipoint positioning mode to carry out.
Existing piston just the turning device be by locating piece simultaneously with piston boss, piston skirt under end in contact, the location when top, location and piston cavity top contact realize whole preliminary working.But in actual production process, the piston blank quality conformance is deviation to some extent, when lower end, piston skirt position point dimensional discrepancy surpasses certain value, following situation will appear, position point is oversize when the lower end, piston skirt, locating piece contacts with piston boss, but can not with end in contact under the piston skirt, this situation can make pressure not reach predetermined clamping force, make piston up and down or left and right twisting in the process of preliminary working, cause piston skirt wall thickness difference inhomogeneous, inlay iron hoop and position, interior cold oil road degree is overproof; Location dimension is too small when the lower end, piston skirt, and end in contact under locating piece and the piston skirt can not contact with piston boss, if strengthen predetermined pressure, the piston skirt is opened shelves and had cracking or recessive seminess.
Therefore, design a kind of by force to piston blank adaptability, the first turning device that versatility is good is those skilled in the art's problem demanding prompt solutions.
The utility model content
The technical problems to be solved in the utility model provides a kind of piston turning device just, and just the turning device is strong to the adaptability of piston blank for the piston that the utility model provides, though the piston blank location dimension to some extent deviation also can guarantee technological requirement.
For solving the problems of the technologies described above, the utility model provides a kind of piston turning device just, comprise body shaft, be with body cover, inner spring and locating piece on the described body shaft, described body cover is fixedlyed connected with described body shaft, and described body shaft is provided with the top, location by an end of described locating piece, it is characterized in that, described body puts and is provided with positioning sleeve, is provided with outer spring between described body cover and the described positioning sleeve, and described positioning sleeve is fixedly connected on described body by dive key and puts.
Preferably, described body cover adopts screw thread to screw mode to fixedly connected with described body shaft.
Preferably, be provided with packing ring between the top of described locating piece and described location.
Preferably, described outer spring is more than 3.
Preferably, described body puts and is provided with flange, and described outer spring is evenly distributed on the described flange along described body cover circumference.
Piston provided by the utility model is the turning device just, compared with prior art, owing to increased positioning sleeve, positioning sleeve contacts with lower end, piston skirt localization part, and locating piece contacts with piston boss, even lower end, piston skirt localization part location dimension deviation to some extent, just the turning device also can be realized good location, guarantee technological requirement, adaptability is strong, and versatility is good; Adopt dive key to be connected between positioning sleeve and the body cover, can prevent that positioning sleeve from rotating, and can make positioning sleeve move along body shaft again; Be provided with packing ring between locating piece and the top, location, play cushioning effect in the course of work again.
Description of drawings
Fig. 1 is the utility model piston turning device cutaway view just;
Fig. 2 is the utility model piston turning apparatus structure schematic diagram just.
Among the figure,
1, body shaft; 2, body cover; 3, outer spring; 4, dive key; 5, positioning sleeve;
6, inner spring; 7, piston skirt; 8, locating piece; 9, top, location;
10, packing ring; 11, workpiece piston; 12, flange.
The specific embodiment
In order to make those skilled in the art person understand the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
See also Fig. 1 and Fig. 2, a kind of piston provided by the utility model is the turning device just, comprises body shaft 1, is with body cover 2 on the body shaft 1, and body cover 2 modes that screw by screw thread are fixedly connected on the body shaft 1.Also be with inner spring 6 and locating piece 8 on body shaft 1, inner spring 6 can promote locating piece about 8 and move back and forth.On body shaft 1, end near locating piece 8 is fixedly connected with top, location 9, top, location 9 modes that screw by screw thread are fixed on the body shaft 1 herein, between locating piece 8 and top, location 9, be provided with packing ring 10 is installed, the extreme position that locating piece 8 moves has been limited in top, location 9, and packing ring 10 plays cushioning effect between locating piece 8 and top, location 9.Be with positioning sleeve 5 at body cover 2, between body cover 2 and positioning sleeve 5, be provided with outer spring 3, outer spring 3 can promote positioning sleeve about 5 and move back and forth, the quantity of outer spring 3 is more than 3, preferably 6, outer spring 3 is arranged on the flange 12 on the body cover 2, overlaps 2 circumference along body and is evenly distributed on the flange 12.Be provided with dive key 4 at body cover 2, can prevent positioning sleeve 5 rotations, but not hinder positioning sleeve 5 to move axially.
Operation principle of the present utility model
When clamping workpiece piston 11, positioning sleeve 5 contacts with piston skirt 7 lower end localization parts, locating piece 8 contacts with piston boss, location top 9 contacts with the piston cavity top, position, realize clamping, even lower end, piston skirt localization part location dimension is deviation to some extent, also can make positioning sleeve 5, locating piece 8 contacts with piston boss simultaneously with lower end, piston skirt localization part, realizes good location, guarantees technological requirement, because outer spring 3 is to design in advance according to the Cutting Force size with the elastic force size of inner spring 6, it can overcome Cutting Force and steadily rotates, and is unlikely to again to cause the piston skirt cracking because power is excessive, produces micro-crack.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. the first turning device of a piston, comprise body shaft, be with body cover, inner spring and locating piece on the described body shaft, described body cover is fixedlyed connected with described body shaft, described body shaft is provided with the top, location by an end of described locating piece, it is characterized in that described body puts and is provided with positioning sleeve, be provided with outer spring between described body cover and the described positioning sleeve, described positioning sleeve is fixedly connected on described body by dive key and puts.
2. the first turning device of piston according to claim 1 is characterized in that, described body cover employing screw thread screws mode and fixedlys connected with described body shaft.
3. the first turning device of piston according to claim 1 is characterized in that, is provided with packing ring between described locating piece and the top, described location.
4. the first turning device of piston according to claim 1 is characterized in that described outer spring is more than 3.
5. the first turning device of piston according to claim 4 is characterized in that described body puts and is provided with flange, and described outer spring is evenly distributed on the described flange along described body cover circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684550 CN203221367U (en) | 2012-12-12 | 2012-12-12 | Excircle preliminary turning device for pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684550 CN203221367U (en) | 2012-12-12 | 2012-12-12 | Excircle preliminary turning device for pistons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203221367U true CN203221367U (en) | 2013-10-02 |
Family
ID=49248384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220684550 Expired - Fee Related CN203221367U (en) | 2012-12-12 | 2012-12-12 | Excircle preliminary turning device for pistons |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203221367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325333A (en) * | 2014-09-30 | 2015-02-04 | 重庆杭飞机械制造有限公司 | Tensioning type clamp for processing piston |
| CN106695413A (en) * | 2015-11-13 | 2017-05-24 | 苏州喆从实业有限公司 | Piston cylindrical lathe cutting tool |
-
2012
- 2012-12-12 CN CN 201220684550 patent/CN203221367U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325333A (en) * | 2014-09-30 | 2015-02-04 | 重庆杭飞机械制造有限公司 | Tensioning type clamp for processing piston |
| CN106695413A (en) * | 2015-11-13 | 2017-05-24 | 苏州喆从实业有限公司 | Piston cylindrical lathe cutting tool |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20201212 |