CN205341976U - A hole is from elastic fixture that feels relieved for long and thin part - Google Patents
A hole is from elastic fixture that feels relieved for long and thin part Download PDFInfo
- Publication number
- CN205341976U CN205341976U CN201520971997.5U CN201520971997U CN205341976U CN 205341976 U CN205341976 U CN 205341976U CN 201520971997 U CN201520971997 U CN 201520971997U CN 205341976 U CN205341976 U CN 205341976U
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- CN
- China
- Prior art keywords
- packing ring
- centering
- clamp assembly
- mandrel
- resilient disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000012856 packing Methods 0.000 claims abstract description 42
- 125000006850 spacer group Chemical group 0.000 claims abstract description 14
- 230000009471 action Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000007514 turning Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 6
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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- Gripping On Spindles (AREA)
Abstract
The utility model provides a hole is from elastic fixture that feels relieved for long and thin part, is including receiving direct centre gripping and play the dabber that supports the positioning action, play limiting displacement and transmit first packing ring and second packing ring, two at least centering clamping subassemblies that the centre gripping compressed tightly the effort, play a plurality of spacers that partition centering clamping subassembly acted on and the nut of screwing up that provides the packing force, wherein, the one end of dabber is lathe main shaft exposed core, the other end supports the end for the thimble, the centering clamping subassembly, the spacer, the spindle is arranged in to first packing ring and second packing ring cover, first packing ring is close to the lathe main shaft exposed core of dabber, the thimble that the second packing ring is close to the dabber supports the end, the centering clamping subassembly is located between first packing ring and the second packing ring, the spacer is located between each centering clamping subassembly, it connects the thimble at the dabber to support the end and apply the packing force through the second packing ring to the centering clamping subassembly soon to screw up the nut, make the excircle radial expansion of centering clamping subassembly and the hole of long and thin part is held tightly to the centre gripping. The utility model discloses simple structure, it is convenient to use, and the precision is reliable, is applicable to the high accuracy processing of slender axles class part.
Description
Technical field
This utility model relates to Machining of Shaft-type Parts auxiliary device, is used for elongated slewing parts turning and grinding with high-precision endoporus self-centering spring chuck particularly to one, belongs to machinery manufacturing technology field.
Background technology
In mechanical manufacturing field; often turning and the grinding problem of elongated slewing parts can be run into; such as; in the structure of middle high speed diesel engine; if its timing or timing mechanism are by mechanically operated, then wherein necessarily contain camshaft parts, owing to camshaft part is across whole frame; length is longer, therefore often adopts and is formed by connecting by multistage axis body.In order to ensure the axiality requirement of the camshaft being spliced, the axis body part of these segmentations must reach significantly high axiality and round requirement of beating.Such as, A, B in drive mechanism arrange camshaft and connect axle, and two ends require to keep coaxial around, and end face and connect the requirement of beating of hole, location and axis and be 0.01mm.Owing to this connection axle accessory size is long, want the processing completing whole part on lathe to be necessary for carrying out workpiece to stand up, reverse end for end again Set and Positioning, school adjust alignment, this processes the requirement of beating just being unable to reach both ends of the surface to axis 0.01mm on general horizontal lathe or numerically controlled lathe；In addition this camshaft connection axle part is generally middle thin, and two ends are positioning mode flange-type structure, and flange end wall is thin, diameter big, and lathe is difficult to direct clamping.If adopting high-end double; two main shaft turn-milling complex machining centers to be processed, then processing cost is expensive, in addition connecting, even for camshaft, the part that the axle not high and major diameter of this kind of inner hole precision own is relatively larger, the simple folder that changes relying on double dynamical main shaft turn-milling complex machining center is also difficult to ensure that machining accuracy is not produced impact by the overhanging of part itself completely.
Utility model content
The purpose of this utility model is in that, overcome the defect of above-mentioned existing process technology, a kind of endoporus self-centering spring chuck for thin and long units is provided, realize simple and easy on common (numerical control) lathe being reliably completed similar camshaft and connecting the purpose of the thin and long units clamped one time such as axle and processing, reach easy to use, with low cost, working (machining) efficiency is high, ensure the effect of precision.
The technical solution of the utility model is as follows:
A kind of endoporus self-centering spring chuck for thin and long units, it includes being subject to directly clamping and playing the mandrel of support positioning action, play position-limiting action and transmit the first packing ring and the second packing ring, at least two centering clamp assembly of clamping clamping force, play the some spacers separating described centering clamp assembly effect and provide the fastening nut of thrust；One end of described mandrel is machine tool chief axis bare terminal end, and the other end is thimble support end；Described centering clamp assembly, spacer, the first packing ring and the second gasket sleeve are placed on this mandrel, described first packing ring is near the machine tool chief axis bare terminal end of described mandrel, described second packing ring is near the thimble support end of described mandrel, described centering clamp assembly is between described first packing ring and the second packing ring, and described spacer is between each centering clamp assembly；Described fastening nut is screwed in the thimble support end of described mandrel and applies thrust by described second packing ring to described centering clamp assembly, makes the cylindrical radial dilatation of this centering clamp assembly and clamps the endoporus of holding described thin and long units tightly.
Further; described centering clamp assembly includes the V-type resilient disc that thrust is converted into clamping enclasping force and two stop collars that described V-type resilient disc is shielded; this V-type resilient disc is centrally located, and this two stop collar is folded in the both sides of described V-type resilient disc respectively.
Further, the amount of radially expanding of described V-type resilient disc is 0.4～0.7mm, centering precision less than
Further, the quantity of each described centering V-type resilient disc contained by clamp assembly is at least one, and is adjusted according to the size of chucking power needed for work pieces process.
Further, the described endoporus of V-type resilient disc and the size of cylindrical carry out turning adjustment according to workpiece practical situation.
Advantageous Effects of the present utility model is as follows:
Described endoporus self-centering spring chuck is installed on machine tool chief axis as frock, slender axles part to be processed is directly sleeved on this fixture, within positioning precision can be maintained at 0.01mm, solve and original thin and long shafts part course of processing reverses end for end to stand up cause the difficult problem that second positioning precision is not high, working (machining) efficiency is low, labor intensity of operating staff is big；The feature that this utility model has simple in construction simultaneously, easy to use, stable accuracy is reliably, according to concrete workpiece situation size adjustable, it is adaptable to lathe and the quick high accuracy processing of thin and long shafts part on grinding machine.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of V-type resilient disc.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is use state diagram of the present utility model.
In figure,
1 mandrel, 2 first packing rings, 3 V-type resilient discs, 4 stop collars, 5 spacers, 6 second packing rings, 7 fastening nuts, 8 conversion sleeves.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but therefore can not limit this utility model scope required for protection.
Refer to Fig. 1 structural representation of the present utility model.Illustrating the endoporus self-centering spring chuck for thin and long units and be held on machine tool chief axis, described endoporus self-centering spring chuck includes mandrel the 1, first packing ring the 2, second packing ring 6, at least two centering clamp assembly, some spacers 5 and fastening nut 7.
Described mandrel 1 is as the main body of a whole set of fixture, and by directly clamping a support positioning action, the miscellaneous part of this fixture is all enclosed within described mandrel 1.One end of described mandrel 1 is machine tool chief axis bare terminal end, and its cylindrical is directly clamped by lathe self-centering chuck, it is possible to become other connected modes according to machine tool chief axis feature；The other end of this mandrel 1 is thimble support end, is drilled with thimble centre bore, and the held cylindrical of this centre bore and mandrel 1 forms common reference, it is determined that the axial location of a whole set of fixture.
Described first packing ring 2 and the second packing ring 6 are placed on described mandrel 1, play position-limiting action, limit the degree of freedom in three directions of part to be processed, and transmit clamping clamping force；Described first packing ring 2 is near the machine tool chief axis bare terminal end of described mandrel 1, and described second packing ring 6 is near the thimble support end of described mandrel 1.
Described centering clamp assembly is placed on described mandrel 1, between described first packing ring 2 and the second packing ring 6, is carried out the critical piece of clamping action, plays the effect controlling all the other three degree of freedoms of part to be processed.The quantity of this centering clamp assembly is at least two, it is possible to determine according to concrete condition adjustment such as Workpiece lengths.Described centering clamp assembly includes V-type resilient disc 3 and two stop collars 4, and the quantity of each described centering V-type resilient disc 3 contained by clamp assembly is at least one, and can be adjusted according to the size of chucking power needed for work pieces process.Described V-type resilient disc 3 is centrally located, and thrust is converted into clamping enclasping force, and described two stop collars 4 are folded in the both sides of described V-type resilient disc 3 respectively, and this V-type resilient disc 3 is shielded.
Refer to Fig. 2 and Fig. 3, described V-type resilient disc 3 be dish elastic component, central authorities are provided with centre bore, and when being subject to axial force, it can deform, and radially expands, and its amount of radially expanding is about 0.4～0.7mm, centering precision less thanDescribed V-type resilient disc 3 can select difference make material and adjust its hardness according to the hardness of part to be processed and surface appearance, and the hole size of this V-type resilient disc and excircle dimension can carry out turning adjustment according to workpiece practical situation.
Refer to Fig. 1, described spacer 5 is between the stop collar 4 of adjacent two centering clamp assemblies, playing the effect separating centering clamp assembly and spacing, its quantity is adjusted according to the length of workpiece and combines, to distribute the position of each centering clamp assembly according to actual needs.
The offer unit that described fastening nut 7 is thrust, it can be an one-piece parts, it is also possible to be the mechanical combination of multiple part, or pneumatically or hydraulically etc. other kinds of chucking power provides source.Described fastening nut 7 is screwed in the thimble support end of described mandrel 1, and apply thrust by described second packing ring 6 to described centering clamp assembly, make the cylindrical radial dilatation of the V-type resilient disc 3 of this centering clamp assembly and clamp the endoporus of holding described thin and long units tightly.
Operation principle of the present utility model is as follows:
The cylindrical of described mandrel 1 one end directly three-jaw self-centering chuck by lathe clamps, and the other end adopts amesdial calibration after using thimble clamping, to determine the datum axis of a whole set of frock and part to be processed.Being inserted in part to be processed after unclamping fastening nut 7 on mandrel 1, screw fastening nut 7 afterwards, the axial compressive force produced by screw thread is put on V-type resilient disc 3 and is converted into the enclasping force to workpiece, thus completing clamping.
Embodiment: the camshaft in SEMT company medium speed engine 16PC2-6B type is connected the clamping of axle part.
As shown in Figure 4, camshaft connects axle part left side and leans against on the first packing ring 2, plays position-limiting action, and two groups of centering clamp assemblies are one in front and one in back supported on camshaft and connect on the inner hole wall at axle two ends.Equipped with three spacers 5 between two groups of centering clamp assemblies, play axial force transmission and clip position fixation.Fastening nut 7 is connected with mandrel 1 by screw thread, and the axial compressive force produced after screwing is acted on stop collar 4 and V-type resilient disc 3 by the second packing ring 6, promotes V-type resilient disc 3 two ends to be subject to relative pressure, and the enlarged outside diameter of the V-type resilient disc 3 after compression forms enclasping force.After installing due to a whole set of fixture and part to be processed, fastening nut 7 is not in the endoporus of part, it is therefore desirable to is connected on fastening nut 7 by conversion sleeve 8 and carries out tightening operation.
The gripping step of the present embodiment is as follows:
1. the light base excircle part of mandrel 1 is clamped on machine tool chief axis by scroll chuck, other end use lathe center clamping, use amesdial correction cylindrical, control total run-out≤0.005, so far frock main body installation school is adjusted complete.
2. load 2, one group of stop collar 4 of the first packing ring and 3, three spacers 5 of V-type resilient disc, another group stop collar 4 and V-type resilient disc 3 and the second packing ring 6 in order, screw on fastening nut 7, complete the installation of a whole set of special tooling.
3. unscrew fastening nut 7 after, make centering clamp assembly be in the relaxed state opened.
4. camshaft connects shaft-like work be inserted on mandrel 1.
5. screwing fastening nut 7 to V-type resilient disc 3 by conversion sleeve 8 and hold part completely tightly, so far all frock installs, it is possible to be processed.
Above are only preferred embodiment of the present utility model, not be used for limiting this utility model, all equivalences made according to the content of this utility model scope change and modify, and broadly fall into the scope that this utility model claims.
In sum, this utility model solves to stand up in original thin and long shafts part course of processing and reverses end for end to cause the difficult problem that second positioning precision is not high, working (machining) efficiency is low and labor intensity of operating staff is big；There is simple in construction, easy to use, the reliable advantage of stable accuracy simultaneously, it is achieved that the high accuracy rapid processing of thin and long shafts part.
Claims (5)
1. the endoporus self-centering spring chuck for thin and long units, it is characterised in that: described endoporus self-centering spring chuck includes being subject to directly clamping and playing the mandrel of support positioning action, play position-limiting action and transmit the first packing ring and the second packing ring, at least two centering clamp assembly of clamping clamping force, play the some spacers separating described centering clamp assembly effect and provide the fastening nut of thrust；One end of described mandrel is machine tool chief axis bare terminal end, and the other end is thimble support end；Described centering clamp assembly, spacer, the first packing ring and the second gasket sleeve are placed on this mandrel, described first packing ring is near the machine tool chief axis bare terminal end of described mandrel, described second packing ring is near the thimble support end of described mandrel, described centering clamp assembly is between described first packing ring and the second packing ring, and described spacer is between each centering clamp assembly；Described fastening nut is screwed in the thimble support end of described mandrel and applies thrust by described second packing ring to described centering clamp assembly, makes the cylindrical radial dilatation of this centering clamp assembly and clamps the endoporus of holding described thin and long units tightly.
2. the endoporus self-centering spring chuck for thin and long units according to claim 1; it is characterized in that: described centering clamp assembly includes the V-type resilient disc that thrust is converted into clamping enclasping force and two stop collars that described V-type resilient disc is shielded; this V-type resilient disc is centrally located, and this two stop collar is folded in the both sides of described V-type resilient disc respectively.
3. the endoporus self-centering spring chuck for thin and long units according to claim 2, it is characterised in that: the amount of radially expanding of described V-type resilient disc is 0.4～0.7mm, centering precision less than
4. the endoporus self-centering spring chuck for thin and long units according to claim 2, it is characterized in that: the quantity of each described centering V-type resilient disc contained by clamp assembly is at least one, and is adjusted according to the size of chucking power needed for work pieces process.
5. the endoporus self-centering spring chuck for thin and long units according to claim 2, it is characterised in that: the described endoporus of V-type resilient disc and the size of cylindrical carry out turning adjustment according to workpiece practical situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520971997.5U CN205341976U (en) | 2015-11-30 | 2015-11-30 | A hole is from elastic fixture that feels relieved for long and thin part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520971997.5U CN205341976U (en) | 2015-11-30 | 2015-11-30 | A hole is from elastic fixture that feels relieved for long and thin part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205341976U true CN205341976U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520971997.5U Expired - Fee Related CN205341976U (en) | 2015-11-30 | 2015-11-30 | A hole is from elastic fixture that feels relieved for long and thin part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205341976U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514516A (en) * | 2016-12-27 | 2017-03-22 | 宣城市建林机械有限公司 | Vibration reducing cylinder machining tool |
| CN107052769A (en) * | 2016-12-27 | 2017-08-18 | 宣城市建林机械有限公司 | The locking device of rotary components |
| CN109249050A (en) * | 2018-11-14 | 2019-01-22 | 无锡信捷电气股份有限公司 | Inner hole automatic centering clamping mechanism |
| CN109482924A (en) * | 2018-12-18 | 2019-03-19 | 珠海格力智能装备有限公司 | Clamping structure and machine tool with same |
| CN113635147A (en) * | 2021-07-20 | 2021-11-12 | 江苏华东砂轮有限公司 | Finish machining device and finish machining method for inner circle and outer circle of grinding wheel |
| CN113814794A (en) * | 2021-09-18 | 2021-12-21 | 中国航发哈尔滨东安发动机有限公司 | Coaxial processing method for pump products |
| CN114871710A (en) * | 2022-07-12 | 2022-08-09 | 成都航天万欣科技有限公司 | Machining method for slender shaft-shaped centering structural part |
| CN117450895A (en) * | 2023-12-25 | 2024-01-26 | 青岛默森制造技术有限公司 | Automobile hub roundness detection equipment and detection method thereof |
-
2015
- 2015-11-30 CN CN201520971997.5U patent/CN205341976U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052769B (en) * | 2016-12-27 | 2023-08-22 | 宣城市建林机械有限公司 | Locking device of rotating assembly |
| CN107052769A (en) * | 2016-12-27 | 2017-08-18 | 宣城市建林机械有限公司 | The locking device of rotary components |
| CN106514516A (en) * | 2016-12-27 | 2017-03-22 | 宣城市建林机械有限公司 | Vibration reducing cylinder machining tool |
| CN106514516B (en) * | 2016-12-27 | 2020-03-31 | 宣城市建林机械有限公司 | Machining tool for shock absorbing cylinder |
| CN109249050A (en) * | 2018-11-14 | 2019-01-22 | 无锡信捷电气股份有限公司 | Inner hole automatic centering clamping mechanism |
| CN109482924A (en) * | 2018-12-18 | 2019-03-19 | 珠海格力智能装备有限公司 | Clamping structure and machine tool with same |
| CN109482924B (en) * | 2018-12-18 | 2024-03-08 | 珠海格力智能装备有限公司 | Clamping structure and machine tool with same |
| CN113635147A (en) * | 2021-07-20 | 2021-11-12 | 江苏华东砂轮有限公司 | Finish machining device and finish machining method for inner circle and outer circle of grinding wheel |
| CN113814794A (en) * | 2021-09-18 | 2021-12-21 | 中国航发哈尔滨东安发动机有限公司 | Coaxial processing method for pump products |
| CN113814794B (en) * | 2021-09-18 | 2022-09-30 | 中国航发哈尔滨东安发动机有限公司 | Coaxial processing method for pump products |
| CN114871710A (en) * | 2022-07-12 | 2022-08-09 | 成都航天万欣科技有限公司 | Machining method for slender shaft-shaped centering structural part |
| CN117450895A (en) * | 2023-12-25 | 2024-01-26 | 青岛默森制造技术有限公司 | Automobile hub roundness detection equipment and detection method thereof |
| CN117450895B (en) * | 2023-12-25 | 2024-03-12 | 青岛默森制造技术有限公司 | Automobile hub roundness detection equipment and detection method thereof |
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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: 20160629 |
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| CF01 | Termination of patent right due to non-payment of annual fee |