CN101758398A - Bidirectional positioning fixture for crankshaft milling groove - Google Patents
Bidirectional positioning fixture for crankshaft milling groove Download PDFInfo
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- CN101758398A CN101758398A CN200810195282A CN200810195282A CN101758398A CN 101758398 A CN101758398 A CN 101758398A CN 200810195282 A CN200810195282 A CN 200810195282A CN 200810195282 A CN200810195282 A CN 200810195282A CN 101758398 A CN101758398 A CN 101758398A
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- support abutment
- positioning fixture
- thimble
- groove
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Abstract
The invention discloses a bidirectional positioning fixture for a crankshaft milling groove. A plane on a base is adopted as the installing reference for a left supporting seat and a right supporting seat which are connected with the base by coaxial keys in a matching manner; an axially-adjustable structure is formed by a movable thimble arranged on the left end surface of the right supporting seat and a flat air cylinder connected with the outer end surface of the right supporting seat; a dead thimble is arranged on the right end surface of the left supporting seat, and the movable thimble and the dead thimble which are coaxial and opposite are the same in height. A transition bearing is arranged on the left of the movable thimble and under a shaft journal of a crankshaft groove to be milled, one horizontal deflection side of a crank of a crankshaft leads the groove to be milled to locate upwards, a limiting pillar which vertically props the outer diameter is arranged at the bottom part of the crank, and the upper part of the crank is compacted by the compacting end of a pneumatic clamping mechanism. With adjustable structure and accurate as well as reliable positioning, the bidirectional positioning fixture is particularly suitable for mass production.
Description
Technical field
The present invention relates to a kind of machine cut clamp for machining, particularly a kind of axle head groove milling positioning fixture.
Background technology
Bent axle is the critical component that engine transmits moment of torsion, and its axle head is provided with the keyway with the combination that replaces the spare parts mutually.The complex structure of the conventional axle of bent axle, location and installation is difficult during milling axle head keyway, to operative employee's specification requirement height.Prior art adopts the Double Tops needle construction can easily realize the axially accurate location of bent axle, but the difficult accurately location of the crank throw corner of bent axle has only the manual adjustment method of employing could realize the location, and whole operation is long man-hour, installation accuracy is subjected to man's activity bigger, does not meet the specification requirement of batch process.
Summary of the invention
The present invention is primarily aimed at the deficiencies in the prior art, proposes a kind of simple in structure, easy to operate, accurate positioning, clamps bidirectional positioning fixture for crankshaft milling groove efficiently.
The present invention is achieved through the following technical solutions technical goal.
Bidirectional positioning fixture for crankshaft milling groove, it comprises flat cylinder 1, right support abutment 2, live centre 3, transition supporting 4, left support abutment 5, pneumatic pinch mechanism 6, base 7, spacing pillar 8 and key 9.The plane is the common reference for installation of left support abutment 5, right support abutment 2 on the described base 7, and right support abutment 2 and left support abutment 5 are connected with base 7 by the key 9 that is coaxially set.The flat cylinder 1 that the equipped live centre 3 in described right support abutment 2 left sides is connected with the outer face is formed axial adjustable structure, and the equipped thimble in left support abutment 5 right sides is slow-witted thimble, and two coaxial relative thimbles are contour.Its improvements are: the left end of described live centre 3 and be positioned at bent axle and treat that the groove milling axle journal has transition supporting 4, crank throw horizontal deflection one side of bent axle makes groove to be milled up, the crank throw bottom is provided with the spacing pillar 8 of perpendicular top external diameter, and its top is compressed by the end that compresses of pneumatic pinch mechanism 6.
In the said structure, the support height of transition supporting is lower than live centre support height, and when live centre acted on crankshaft end, transition supporting promptly lost supporting role temporarily.Spacing pillar with spiral adjustable structure, except that installing the adjustment first, any adjustment is not done in all the other installations, guarantees with batch bent axle milling key groove under same deflection angle.
The present invention compared with prior art has following good effect:
1, location, supporting and clamp mechanism are simple in structure, easy to manufacture;
2, with the crank throw of spacing pillar supporting deflection, the location is reliable, accurate, high conformity;
3, the adjustable diameter and screw adjusting structure of spacing pillar is except that installing the adjustment first, and all the other are location and installation, and location and installation is short unproductive time, the production efficiency height.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the side view of Fig. 1
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Bidirectional positioning fixture for crankshaft milling groove shown in the drawings, it comprises flat cylinder 1, right support abutment 2, live centre 3, transition supporting 4, left support abutment 5, pneumatic pinch mechanism 6, base 7, spacing pillar 8 and key 9.Right support abutment 2 and left support abutment 5 are fixedly connected on respectively on the base 7 and with the key 9 that is coaxially set according to the length of processed bent axle and make axial location.The flat cylinder 1 that the equipped live centre 3 in right support abutment 2 left sides is connected with the outer face is formed axial adjustable structure.The equipped thimble in left support abutment 5 right sides is slow-witted thimble, and two coaxial relative thimbles are contour, is provided with transition supporting 4 on the live centre 3 centering bearing position left sides.The support height of transition supporting 4 is than live centre 3 low 0.30mm in the present embodiment, when bent axle is just installed, before live centre 3 does not put in place, transition supporting 4 substitutes artificial supporting crankshaft right-hand member in advance, when flat cylinder 1 promotes the live centre 3 axial location bent axle that moves to left, this moment, transition supporting 4 promptly lost supporting role temporarily.The bent axle axle head treats that keyseat and crank throw horizontal level are perpendicular, and the crank throw bottom of horizontal deflection is by spacing supporting 8 supportings of vertically-arranged on base 7, and crank throw top is compressed by hold-down mechanism.Spacing supporting 8 is threaded with base 7, adjusts length of fit and can regulate support height, to satisfy the crank throw supporting of different size.The bent axle milling key groove of same specification is only installed adjustment first, and all the other are that processing directly is installed, and whole erection is short unproductive time, the production efficiency height.
Claims (3)
1. bidirectional positioning fixture for crankshaft milling groove, it comprises flat cylinder (1), right support abutment (2), live centre (3), transition supporting (4), left support abutment (5), pneumatic pinch mechanism (6), base (7), spacing pillar (8) and key (9); It is left support abutment (5), the common reference for installation of right support abutment (2) that described base (7) is gone up the plane, and right support abutment (2) and left support abutment (5) are connected with base (7) by the key (9) that is coaxially set; The flat cylinder (1) that the equipped live centre (3) in described right support abutment (2) left side is connected with the outer face is formed axial adjustable structure, and the equipped thimble in left support abutment (5) right side is slow-witted thimble, and two coaxial relative thimbles are contour; It is characterized in that: the left side of described live centre (3) and be positioned at bent axle and treat that the groove milling axle journal has transition supporting (4), crank throw horizontal deflection one side of bent axle makes groove to be milled up, the crank throw bottom is provided with the spacing pillar (8) of perpendicular top external diameter, and its top is compressed by the end that compresses of pneumatic pinch mechanism (6).
2. bidirectional positioning fixture for crankshaft milling groove according to claim 1 is characterized in that: the support height of described transition supporting (4) is than the low 0.20-0.50mm of live centre (3) support height.
3. bidirectional positioning fixture for crankshaft milling groove according to claim 1 is characterized in that: described spacing pillar (8) and base (7) be connected to the screw thread adjustable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810195282A CN101758398A (en) | 2008-10-31 | 2008-10-31 | Bidirectional positioning fixture for crankshaft milling groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810195282A CN101758398A (en) | 2008-10-31 | 2008-10-31 | Bidirectional positioning fixture for crankshaft milling groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101758398A true CN101758398A (en) | 2010-06-30 |
Family
ID=42489866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810195282A Pending CN101758398A (en) | 2008-10-31 | 2008-10-31 | Bidirectional positioning fixture for crankshaft milling groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101758398A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203489A (en) * | 2013-03-29 | 2013-07-17 | 哈尔滨汽轮机厂有限责任公司 | Device and method for processing GHQ combined cycle unit guide vanes |
| CN103737352A (en) * | 2013-12-17 | 2014-04-23 | 柳州瑞明威罗动力机械有限公司 | Camshaft keyseat clamp |
| CN103737401A (en) * | 2014-01-07 | 2014-04-23 | 南通环球转向器制造有限公司 | Clamp for processing emergency pump camshaft and method for processing camshaft by using clamp |
| CN104457524A (en) * | 2014-12-15 | 2015-03-25 | 青岛德盛机械制造有限公司 | Detection device and method for bending resistance and torsion resistance of crankshaft connecting rod assembly |
| CN104907862A (en) * | 2015-03-31 | 2015-09-16 | 重庆市云阳曲轴有限责任公司 | Tool special for milling key grooves in general engine crankshafts |
| CN105033717A (en) * | 2015-08-31 | 2015-11-11 | 四川省宜宾普什汽车零部件有限公司 | Axial locking device applied to processing course of engine crankshaft |
| CN108481056A (en) * | 2018-05-31 | 2018-09-04 | 贵州远东传动机械有限公司 | A kind of transmission shaft bore hole fixing device |
| CN110722380A (en) * | 2019-10-11 | 2020-01-24 | 无锡瑞真精机股份有限公司 | Clamp for gear shaft groove milling |
-
2008
- 2008-10-31 CN CN200810195282A patent/CN101758398A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203489A (en) * | 2013-03-29 | 2013-07-17 | 哈尔滨汽轮机厂有限责任公司 | Device and method for processing GHQ combined cycle unit guide vanes |
| CN103203489B (en) * | 2013-03-29 | 2015-07-15 | 哈尔滨汽轮机厂有限责任公司 | Device and method for processing GHQ combined cycle unit guide vanes |
| CN103737352A (en) * | 2013-12-17 | 2014-04-23 | 柳州瑞明威罗动力机械有限公司 | Camshaft keyseat clamp |
| CN103737401A (en) * | 2014-01-07 | 2014-04-23 | 南通环球转向器制造有限公司 | Clamp for processing emergency pump camshaft and method for processing camshaft by using clamp |
| CN104457524A (en) * | 2014-12-15 | 2015-03-25 | 青岛德盛机械制造有限公司 | Detection device and method for bending resistance and torsion resistance of crankshaft connecting rod assembly |
| CN104907862A (en) * | 2015-03-31 | 2015-09-16 | 重庆市云阳曲轴有限责任公司 | Tool special for milling key grooves in general engine crankshafts |
| CN105033717A (en) * | 2015-08-31 | 2015-11-11 | 四川省宜宾普什汽车零部件有限公司 | Axial locking device applied to processing course of engine crankshaft |
| CN108481056A (en) * | 2018-05-31 | 2018-09-04 | 贵州远东传动机械有限公司 | A kind of transmission shaft bore hole fixing device |
| CN110722380A (en) * | 2019-10-11 | 2020-01-24 | 无锡瑞真精机股份有限公司 | Clamp for gear shaft groove milling |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100630 |