CN204449375U - The turning liquid being applicable to state's four-cylinder cover moulds core clamping device - Google Patents
The turning liquid being applicable to state's four-cylinder cover moulds core clamping device Download PDFInfo
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- CN204449375U CN204449375U CN201420781142.1U CN201420781142U CN204449375U CN 204449375 U CN204449375 U CN 204449375U CN 201420781142 U CN201420781142 U CN 201420781142U CN 204449375 U CN204449375 U CN 204449375U
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- mandrel
- linker
- cavity
- ringfeder
- clamping device
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Abstract
The utility model provides a kind of turning liquid being applicable to state's four-cylinder cover and moulds core clamping device, and can carry out stabilizing grip to cylinder jacket, the circumferential uniform force of workpiece, be out of shape little, machining accuracy is high.Comprise machine tool chief axis, described machine tool chief axis is connected with mandrel by ring flange, the inner chamber of described machine tool chief axis is provided with hydraulic jack along axis, and described mandrel inner chamber is provided with piston pin along axis, and described hydraulic jack is connected with described piston pin through hydraulic cylinder push rod; Described mandrel inner chamber is provided with the linker cavity extending to mandrel outer surface, and described mandrel outer surface is provided with multistage ringfeder vertically, and described ringfeder is coated in mandrel outer surface, and its inwall communicates with linker cavity; Liquid plastics is filled with in described linker cavity.
Description
Technical field
The utility model relates to auto parts and components production equipment, is specifically related to a kind of turning liquid being applicable to state's four-cylinder cover and moulds clamping device.
Background technology
For implementing the engine discharge standard-required of Ministry of Industry and Information and State Environmental Protection Administration's proposition, the ic engine industry association criterion committee of China proposed from 2015, Road Transportation emission from vehicles standard all reaches state four standard-required, engine manufacturer requires also to reach state four standard as thin wall cylinder cover to main parts size thereupon, especially requires that the critical sizes such as the inside and outside circle of cylinder jacket and tolerance reach IT6 level.
Thin cylinder sleeve wall thickness 1.5 to 3 millimeters, need in process to use fine turning outer circle clamping device, the clamping device that prior art provides, deformation is there is in cylinder jacket to be processed because of discontinuity, cause the form and position tolerance undesirable (circularity and linearity can only reach IT9 level) of processing exhaust hood cover cylindrical, form and position tolerance be can only could eliminate follow-up through multiple working procedure processing, circularity and linearity IT7 level (state three standard) finally reached.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of turning liquid being applicable to state's four-cylinder cover to mould core clamping device, and can carry out stabilizing grip to cylinder jacket, the circumferential uniform force of workpiece, be out of shape little, machining accuracy is high.
For solving the problems of the technologies described above, the turning liquid being applicable to state's four-cylinder cover of the present utility model moulds core clamping device, comprise machine tool chief axis, described machine tool chief axis is connected with mandrel by ring flange, the inner chamber of described machine tool chief axis is provided with hydraulic jack along axis, described mandrel inner chamber is provided with piston pin along axis, and described hydraulic jack is connected with described piston pin through hydraulic cylinder push rod; Described mandrel inner chamber is provided with the linker cavity extending to mandrel outer surface, and described mandrel outer surface is provided with multistage ringfeder vertically, and described ringfeder is coated in mandrel outer surface, and its inwall communicates with linker cavity; Liquid plastics is filled with in described linker cavity.
After have employed technique scheme, workpiece is set in ringfeder outer wall, and hydraulic jack drives ringfeder circumferentially outer stretching, extension through linker cavity, because liquid plastics possesses mobility, thus ringfeder outer wall is respectively even to stretching, extension strength, the circumferential uniform force of workpiece, be out of shape little, machining accuracy is high.
Preferably, the end of described linker cavity is provided with liquid plastics compactness adjustment bolt.By the stroke adjustment to liquid plastics compactness adjustment bolt, the adjustment to linker cavity swept volume can be realized, thus regulate clamping strength.
Preferably, described mandrel outer surface is provided with vertically two sections of ringfeders approached mutually, the ringfeder of described mandrel root is set with positioning adapter.Two sections of ringfeders approach mutually, make workpiece obtain clamping in axial whole process, further increase uniform force.
Accompanying drawing explanation
Fig. 1 is the structural representation that the turning liquid being applicable to state's four-cylinder cover of the present utility model moulds core clamping device.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, the turning liquid being applicable to state's four-cylinder cover of the present utility model moulds core clamping device, comprise machine tool chief axis 1, described machine tool chief axis 1 is connected with mandrel 3 by ring flange 2, it is characterized in that: the inner chamber of described machine tool chief axis 1 is provided with hydraulic jack 10 along axis, described mandrel 3 inner chamber is provided with piston pin 30 along axis, and described hydraulic jack 10 is connected with described piston pin 30 through hydraulic cylinder push rod 4; Described mandrel 3 inner chamber is provided with the linker cavity 31 extending to mandrel 3 outer surface, and described mandrel 3 outer surface is provided with multistage ringfeder 5 vertically, and described ringfeder 5 is coated on mandrel 3 outer surface, and its inwall communicates with linker cavity 31; Liquid plastics 32 is filled with in described linker cavity 31.The end of described linker cavity 31 is provided with liquid plastics compactness adjustment bolt 6.
Described mandrel 3 outer surface is provided with two sections of ringfeders approached mutually 5 vertically, the ringfeder 5 of described mandrel 3 root is set with positioning adapter 7.
The main realize target of the utility model is that cylinder jacket is moulded after clamping device processing through liquid, and roundness of external circle and linearity can improve 2 grades (IT9 to IT7).And traditional elastic ringfeder clamping device, be utilize elastic expansion-sleeve and fixture mandrel taper fit (boring than 1:6), machine tool hydraulic pull bar drives elastic expansion-sleeve displacement, and elastic expansion-sleeve cylindrical expands and clamps cylinder sleeve bore.Distortion due to elastic expansion-sleeve large (0.15-0.3 millimeter) is rigid contact with cylinder sleeve bore, thus cylinder sleeve bore cylindrical is out of shape increase, and after cylinder sleeve Excircle machining, after external force release, the circularity of cylinder sleeve cylindrical and linearity can only reach IT9 level.
Liquid moulds clamping device major part mandrel 3, two sections of ringfeders approached mutually 5, liquid plastics compactness adjustment bolt 6, piston pin 30, liquid plastics 32 etc.Mandrel 3 loads onto numerically controlled lathe ring flange 2 through fine finishining, the cylindrical that finish turning coordinates with ringfeder reaches drawing dimensional requirement, then unloading mandrel 3 is fitted on mandrel 3 by two ringfeder 5 heat, the liquid plastics 32 prepared is injected in fixture die cavity, first-class liquid plastics compactness adjustment bolt 6, refill on numerically controlled lathe ring flange 2, finish turning ringfeder cylindrical and cylinder sleeve bore fit clearance 0.08-0.10 millimeter.Install on fixture by cylinder jacket 8, cylinder jacket 8 end approaches positioning adapter 7, manually adjusts hydraulic jack 10 stroke.Starter motor tool machining program, hydraulic cylinder push rod 4 promotes piston pin 30 and moves to right, and drives liquid plastics 32 to flow (liquid plastics is incompressible), and liquid plastics 32 promotes two ringfeder 5 circumferential expansion thus clamping cylinder cover 8.Due to two ringfeder 5 wall thickness thin (1.5-1.8 millimeter), liquid plastics flowing evenly, so the roundness of external circle difference little (front and back deviation from circular from 0.005 millimeter) after two ringfeders 5 expansions, energy is tensioner cylinder jacket 8 endoporus evenly, little to making cylinder sleeve bore be out of shape, after processing completion, hydraulic jack 10 moves to left, and liquid plastics 32, after external force release, sets back.Two ringfeders 5 also get back to original position, clamping and release.Processing exhaust hood cover roundness of external circle and straightness error little, IT7 level can be reached.Technology ensuring is provided for follow-up grinding process reaches IT6 level.
Claims (3)
1. the turning liquid being applicable to state's four-cylinder cover moulds core clamping device, comprise machine tool chief axis (1), described machine tool chief axis (1) is connected with mandrel (3) by ring flange (2), it is characterized in that: the inner chamber of described machine tool chief axis (1) is provided with hydraulic jack (10) along axis, described mandrel (3) inner chamber is provided with piston pin (30) along axis, and described hydraulic jack (10) is connected with described piston pin (30) through hydraulic cylinder push rod (4); Described mandrel (3) inner chamber is provided with the linker cavity (31) extending to mandrel (3) outer surface, described mandrel (3) outer surface is provided with vertically multistage ringfeder (5), described ringfeder (5) is coated on mandrel (3) outer surface, and its inwall communicates with linker cavity (31); Liquid plastics (32) is filled with in described linker cavity (31).
2. the turning liquid being applicable to state's four-cylinder cover as claimed in claim 1 moulds core clamping device, it is characterized in that: the end of described linker cavity (31) is provided with liquid plastics compactness adjustment bolt (6).
3. the turning liquid being applicable to state's four-cylinder cover as claimed in claim 1 or 2 moulds core clamping device, it is characterized in that: described mandrel (3) outer surface is provided with vertically two sections of ringfeders approached mutually (5), the ringfeder (5) of described mandrel (3) root is set with positioning adapter (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781142.1U CN204449375U (en) | 2014-12-12 | 2014-12-12 | The turning liquid being applicable to state's four-cylinder cover moulds core clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781142.1U CN204449375U (en) | 2014-12-12 | 2014-12-12 | The turning liquid being applicable to state's four-cylinder cover moulds core clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204449375U true CN204449375U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420781142.1U Expired - Fee Related CN204449375U (en) | 2014-12-12 | 2014-12-12 | The turning liquid being applicable to state's four-cylinder cover moulds core clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204449375U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551068A (en) * | 2014-12-12 | 2015-04-29 | 安徽白兔湖动力股份有限公司 | Outer circle turning liquid plastic core clamping device suitable for national IV air cylinder sleeve |
| CN107096936A (en) * | 2017-06-20 | 2017-08-29 | 安徽祥利机械有限公司 | A kind of ringfeder device that neck bush is sealed for motorcycle |
| CN112059226A (en) * | 2020-08-11 | 2020-12-11 | 大连理工大学 | Adjustable hydraulic expansion mandrel and method |
-
2014
- 2014-12-12 CN CN201420781142.1U patent/CN204449375U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551068A (en) * | 2014-12-12 | 2015-04-29 | 安徽白兔湖动力股份有限公司 | Outer circle turning liquid plastic core clamping device suitable for national IV air cylinder sleeve |
| CN107096936A (en) * | 2017-06-20 | 2017-08-29 | 安徽祥利机械有限公司 | A kind of ringfeder device that neck bush is sealed for motorcycle |
| CN112059226A (en) * | 2020-08-11 | 2020-12-11 | 大连理工大学 | Adjustable hydraulic expansion mandrel and method |
| CN112059226B (en) * | 2020-08-11 | 2021-07-16 | 大连理工大学 | Adjustable hydraulic expansion mandrel and method |
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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: 20150708 Termination date: 20201212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |