CN104551068A - Outer circle turning liquid plastic core clamping device suitable for national IV air cylinder sleeve - Google Patents
Outer circle turning liquid plastic core clamping device suitable for national IV air cylinder sleeve Download PDFInfo
- Publication number
- CN104551068A CN104551068A CN201410760003.5A CN201410760003A CN104551068A CN 104551068 A CN104551068 A CN 104551068A CN 201410760003 A CN201410760003 A CN 201410760003A CN 104551068 A CN104551068 A CN 104551068A
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- China
- Prior art keywords
- mandrel
- clamping device
- cavity
- machine tool
- core clamping
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/42—Expansion mandrels characterised by features relating primarily to remote control of the gripping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides an outer circle turning liquid plastic core clamping device suitable for a national IV air cylinder sleeve, which can clamp an air cylinder sleeve stably. A workpiece is stressed uniformly in the circumferential direction and is high in machining precision, and deforms slightly. The outer circle turning liquid plastic core clamping device comprises a machine tool main shaft; the machine tool main shaft is connected with a mandrel through a flange plate; a hydraulic oil cylinder is arranged in an inner cavity of the machine tool main shaft along the axis; a piston pin is arranged in the inner cavity of the machine tool main shaft along the axis; the hydraulic oil cylinder is connected with the piston pin through a hydraulic cylinder push rod; a communicating device cavity which extends to the outer surface of the mandrel is arranged in the inner cavity of the mandrel; a plurality of sections of expansion sleeves are arranged on the outer surface of the mandrel along the axial direction; the expansion sleeves coat the outer surface of the mandrel; the inner wall of each expansion sleeve is communicated with the communicating device cavity; the communicating device cavity is filled with liquid plastic.
Description
Technical field
The present invention relates to auto parts and components production equipment, be specifically related to a kind of turning liquid being applicable to state's four-cylinder cover and mould 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.
Summary of the invention
Technical problem to be solved by this invention 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 invention 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 invention moulds core clamping device.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, the turning liquid being applicable to state's four-cylinder cover of the present invention 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 present invention 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 |
|---|---|---|---|
| CN201410760003.5A CN104551068A (en) | 2014-12-12 | 2014-12-12 | Outer circle turning liquid plastic core clamping device suitable for national IV air cylinder sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410760003.5A CN104551068A (en) | 2014-12-12 | 2014-12-12 | Outer circle turning liquid plastic core clamping device suitable for national IV air cylinder sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104551068A true CN104551068A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410760003.5A Pending CN104551068A (en) | 2014-12-12 | 2014-12-12 | Outer circle turning liquid plastic core clamping device suitable for national IV air cylinder sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104551068A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105690125A (en) * | 2016-03-18 | 2016-06-22 | 烟台南山学院 | Ultrathin shaft part finish turning clamp |
| CN106239893A (en) * | 2016-08-31 | 2016-12-21 | 浙江金洲管道科技股份有限公司 | A kind of inner lining of steel pipe swelling device |
| CN109848488A (en) * | 2019-04-12 | 2019-06-07 | 定州市新华机械制造有限公司 | Hydraulic gear grinding clamp |
| CN111992750A (en) * | 2020-08-26 | 2020-11-27 | 常州机电职业技术学院 | Wedge type external expansion lathe fixture for outer circle of aluminum piston |
| CN112621312A (en) * | 2020-12-11 | 2021-04-09 | 湖南振辉管业有限公司 | Clamping system for metal plastic composite pipe compounding process |
| CN112719962A (en) * | 2020-12-31 | 2021-04-30 | 江苏罡阳股份有限公司 | Hydraulic automatic expansion clamp suitable for clamping special-shaped hole and special-shaped shaft |
Citations (7)
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|---|---|---|---|---|
| JPH03256669A (en) * | 1990-03-06 | 1991-11-15 | Teikoku Piston Ring Co Ltd | Outer periphery polishing work jig for cylinder body with thin wall thickness |
| CN200988108Y (en) * | 2006-12-15 | 2007-12-12 | 河南省中原内配股份有限公司 | Conical hole centering fastening mechanism |
| CN201760623U (en) * | 2010-07-12 | 2011-03-16 | 安徽华祥实业有限公司 | Liquid plastic mandrel fixture for revolving parts |
| CN202606909U (en) * | 2012-04-01 | 2012-12-19 | 重庆市旺成科技股份有限公司 | Tensioning mandrel |
| CN202752644U (en) * | 2012-08-08 | 2013-02-27 | 江苏爱吉斯海珠机械有限公司 | Dry-type cylinder liner finish turning fixture |
| CN203390234U (en) * | 2013-07-02 | 2014-01-15 | 上海东方泵业(集团)有限公司 | Expansion mandrel |
| CN204449375U (en) * | 2014-12-12 | 2015-07-08 | 安徽白兔湖动力股份有限公司 | The turning liquid being applicable to state's four-cylinder cover moulds core clamping device |
-
2014
- 2014-12-12 CN CN201410760003.5A patent/CN104551068A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03256669A (en) * | 1990-03-06 | 1991-11-15 | Teikoku Piston Ring Co Ltd | Outer periphery polishing work jig for cylinder body with thin wall thickness |
| CN200988108Y (en) * | 2006-12-15 | 2007-12-12 | 河南省中原内配股份有限公司 | Conical hole centering fastening mechanism |
| CN201760623U (en) * | 2010-07-12 | 2011-03-16 | 安徽华祥实业有限公司 | Liquid plastic mandrel fixture for revolving parts |
| CN202606909U (en) * | 2012-04-01 | 2012-12-19 | 重庆市旺成科技股份有限公司 | Tensioning mandrel |
| CN202752644U (en) * | 2012-08-08 | 2013-02-27 | 江苏爱吉斯海珠机械有限公司 | Dry-type cylinder liner finish turning fixture |
| CN203390234U (en) * | 2013-07-02 | 2014-01-15 | 上海东方泵业(集团)有限公司 | Expansion mandrel |
| CN204449375U (en) * | 2014-12-12 | 2015-07-08 | 安徽白兔湖动力股份有限公司 | The turning liquid being applicable to state's four-cylinder cover moulds core clamping device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105690125A (en) * | 2016-03-18 | 2016-06-22 | 烟台南山学院 | Ultrathin shaft part finish turning clamp |
| CN105690125B (en) * | 2016-03-18 | 2017-06-23 | 烟台南山学院 | A kind of ultra-thin axial workpiece finishing processing fixture |
| CN106239893A (en) * | 2016-08-31 | 2016-12-21 | 浙江金洲管道科技股份有限公司 | A kind of inner lining of steel pipe swelling device |
| CN106239893B (en) * | 2016-08-31 | 2018-10-09 | 浙江金洲管道科技股份有限公司 | A kind of inner lining of steel pipe swelling device |
| CN109848488A (en) * | 2019-04-12 | 2019-06-07 | 定州市新华机械制造有限公司 | Hydraulic gear grinding clamp |
| CN111992750A (en) * | 2020-08-26 | 2020-11-27 | 常州机电职业技术学院 | Wedge type external expansion lathe fixture for outer circle of aluminum piston |
| CN111992750B (en) * | 2020-08-26 | 2021-07-30 | 常州机电职业技术学院 | Wedge type external expansion lathe fixture for outer circle of aluminum piston |
| CN112621312A (en) * | 2020-12-11 | 2021-04-09 | 湖南振辉管业有限公司 | Clamping system for metal plastic composite pipe compounding process |
| CN112719962A (en) * | 2020-12-31 | 2021-04-30 | 江苏罡阳股份有限公司 | Hydraulic automatic expansion clamp suitable for clamping special-shaped hole and special-shaped shaft |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |