CN203751797U - Fixture for turning long shaft type cylindrical workpieces - Google Patents
Fixture for turning long shaft type cylindrical workpieces Download PDFInfo
- Publication number
- CN203751797U CN203751797U CN201420136023.0U CN201420136023U CN203751797U CN 203751797 U CN203751797 U CN 203751797U CN 201420136023 U CN201420136023 U CN 201420136023U CN 203751797 U CN203751797 U CN 203751797U
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Abstract
The utility model discloses a fixture for turning long shaft type cylindrical workpieces. The fixture comprises a taper shank, a disc and at least three strip-like clamping parts; the taper shank is coaxially fixed with one end of the disc; the clamping parts are fixed at the other end of the disc; the clamping parts are evenly distributed on the disc; the distance between each clamping part and the center of the disc is equal. The fixture is compact and simple in structure, advantageous for avoiding the generation of a relatively large eccentric distance during processing and improving the turning precision, and also advantageous for avoiding the damage caused by clamping force to the workpieces; the fixture is applicable to the workpieces different in diameter. Besides, the fixture is applicable to turning both of the external cambered surface and the internal cambered surface of a workpiece. The fixture is capable of well meeting the application requirements of accurately processing the workpieces before sintering in a process of preparing a hard alloy by use of a powder metallurgy method.
Description
The utility model belongs to cylindrical workpiece manufacture field, is specifically related to a kind of fixture for turning major axis class cylindrical workpiece.
Background technology
Turning processing for the inside and outside circle of major axis class cylindrical workpiece, at present the main fixture adopting is all holding workpiece end only, the ratio that retained part accounts for whole workpiece length is very little, this method of clamping has obvious defect: on the one hand because the draw ratio of long-axle workpieces is large, in processing, easily produce eccentricity during away from the position of clamping part, thereby affect the machining accuracy of workpiece; On the other hand, because most active forces all concentrate on the position that workpiece is held, easily produce stress and concentrate, thereby workpiece is damaged.This class defect is adopting powder metallurgy mode to show particularly outstandingly in preparing hard alloy process, because Cemented Carbide Hardness is high, burn till finished product after difficulty of processing high, therefore need to before sintering, to workpiece, accurately process, and requirement on machining accuracy is high; And the workpiece strength before sintering is poor fragile, therefore, when preparing the cylindric carbide alloy workpiece of major axis class, existing turning clamp is not more well positioned to meet application requirements.
Utility model content
The utility model, for the problems referred to above, provides a kind of new fixture for turning major axis class cylindrical workpiece.
The purpose of this utility model realizes by following technical proposals:
A kind of fixture for turning major axis class cylindrical workpiece, comprise taper shank, the clamping part of disk and at least three strips, one end of described taper shank and disk is coaxially fixing, described clamping part is fixed on the other end of described disk, described clamping part is distributed on described disk, and each clamping part equates to the distance of disc centre.Described fixture is long to the long axis direction clamp distance of workpiece by the clamping part of strip is set, even can to workpiece, carry out integral retaining along long axis direction, be conducive to avoid adding produce larger eccentric throw man-hour, improve turning machining accuracy, and workpiece and fixture contact area are larger, stressed more even, more be conducive to avoid chucking power to cause damage to workpiece, described fixture is all applicable when turner extrados and intrados.
As optional mode, in above-mentioned fixture, side and abaxial side near axle in described clamping part are cambered surface.Be arranged to cambered surface and make the fixture surface of the work of can better fitting, clamp more firmly, workpiece and fixture contact area are larger, and workpiece is stressed more even, avoids stress to concentrate the damage to workpiece.
As optional mode, in above-mentioned fixture, described clamping part is fixed on described disk removably.Clamping part is arranged to removably, facilitate moving and depositing of fixture, also be convenient to the maintenance of clamping part and replacing, can also be equipped with a series of clamping parts with different interior lateral surface radians, when the workpiece of processing different size, select suitable clamping part, clamping part and surface of the work shape are more adapted to, and contact area is larger.
As optional mode, in above-mentioned fixture, on described disk, be also provided with the elongated slot or the round that radially extend, described clamping part is fixedly connected in described elongated slot or round with removably.By adjusting the position of clamping part in elongated slot or selecting different rounds, can adjust clamping part to the distance of fixture axis, to adapt to the needs of the workpiece of turning different-diameter.
As optional mode, in above-mentioned fixture, on described disk, be also provided with locating pin, described locating pin diameter is slightly less than the width of elongated slot or the diameter of round, can withstand workpiece end face through elongated slot or round, and workpiece is positioned, and prevents from rotating in fixture.
As optional mode, in above-mentioned fixture, described clamping part surface is provided with anti-skidding striped.Increase the friction of clamping part and workpiece, prevent from adding man-hour workpiece and slide with respect to fixture, described anti-skidding striped can also be arranged to rhombus striped, realize multi-direction anti-skidding.
As optional mode, in above-mentioned fixture, on described clamping part, be evenly equipped with vertically trip bolt.By trip bolt is set, make clamping more firm, be more conducive to less eccentric throw, improve machining accuracy, make the clamping of workpiece more convenient, the alignment that can further pack workpiece and fixture by adjusting trip bolt, also can adapt to the small variations of different workpieces on diameter simultaneously.
As optional mode, in above-mentioned fixture, the inside and outside side of the end face of described trip bolt or described clamping part is soft metal or wear-resistant macromolecule material.Described soft metal is the good materials of the lower ductility of hardness such as aluminium, copper, and described soft metal or wear-resistant macromolecule material make to produce faint distortion in clamping, can make fixture and workpiece laminating tightr, clamps more firm.
As optional mode, in above-mentioned fixture, the length of described clamping part is suitable with the length of workpiece to be processed.Make fixture to can be along workpiece spindle to substantially realizing integral retaining, avoid again that clamping part is long and impact adds the feed operation in man-hour.
As optional mode, in above-mentioned fixture, the length of described clamping part is slightly longer than workpiece to be processed, in described fixture, also comprise end cap and locating pin, described end cap is annular, is evenly equipped with the stopper slot consistent with described clamping part quantity on it, described stopper slot and described clamping part matched in clearance, on described end cap, be also provided with the elongated slot or the round that radially extend, the diameter of described locating pin is slightly less than the width of elongated slot or the diameter of round, can to workpiece, position through elongated slot or round.End cap and locating pin are set and can further prevent that workpiece from rotating with respect to fixture.If locating pin is all set on described disk and end cap, positioning action is stronger and can reduce the moment of torsion that workpiece bears in turning process.
As optional mode, in above-mentioned fixture, the group number of described elongated slot number or round is identical with described stopper slot quantity, described elongated slot or round and described stopper slot interlaced arrangement.
Disclosed all features in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way
The beneficial effects of the utility model:
Adopt clamp structure described in the utility model compact, simple, long axis direction clamp distance to workpiece is long, even can to workpiece, carry out integral retaining along long axis direction, be conducive to avoid adding produce larger eccentric throw man-hour, improve turning machining accuracy, and workpiece and fixture contact area are larger, stressed more even, be more conducive to avoid chucking power to cause damage to workpiece, described fixture can be applicable to the workpiece of different-diameter.And described fixture is all applicable when turner extrados and intrados.Can meet well and adopt powder metallurgy mode to prepare the application requirements that workpiece is accurately added man-hour in hard alloy process before sintering.
Accompanying drawing explanation
Fig. 1 is the front view of fixture described in the utility model;
Fig. 2 is the right view of fixture described in the utility model;
Fig. 3 is the sectional view of clamping part described in a kind of optional mode of fixture described in the utility model;
Fig. 4 is the schematic diagram of end cap in fixture described in the utility model.
Fig. 5 is for adopting the schematic diagram of clamp vehicle turning work piece extrados described in the utility model;
Fig. 6 is for adopting the schematic diagram of clamp vehicle turning work piece intrados described in the utility model.
Reference numeral: 1 is taper shank, 2 is chuck, and 3 is clamping part, and 4 is elongated slot or round, and 5 is locating pin, and 6 is trip bolt, and 7 is workpiece to be processed, and 8 is clamping part medial surface, 9 is clamping part lateral surface, 10 end caps, 11 is stopper slot.
The specific embodiment
By the following examples the utility model is specifically described; be necessary to be pointed out that at this present embodiment is only for being further described the utility model; but can not be interpreted as the restriction to the utility model protection domain, the person skilled in the art in this field can make according to above-mentioned content of the present utility model improvement and the adjustment of some non-intrinsically safes to the utility model.
embodiment 1
A kind of fixture for turning major axis class cylindrical workpiece, as depicted in figs. 1 and 2, comprise taper shank 1, the clamping part 3 of disk 2 and at least three strips, described taper shank 1 is coaxially fixing with one end of disk 2, described clamping part 3 is fixed on the other end of described disk 2, and described clamping part 3 is distributed on described disk 2, and each clamping part 3 equates to the distance at disk 2 centers.Described fixture is long to the long axis direction clamp distance of workpiece by the clamping part of strip is set, even can to workpiece, carry out integral retaining along long axis direction, be conducive to avoid adding produce larger eccentric throw man-hour, improve turning machining accuracy, and workpiece and fixture contact area are larger, stressed more even, more be conducive to avoid chucking power to cause damage to workpiece, described fixture is all applicable when turner extrados and intrados.
As optional mode, in above-mentioned fixture, taper shank 1 is the Morse taper shank coordinating with lathe spindle internal taper hole.
As optional mode, in above-mentioned fixture, in described clamping part 3, medial surface 8(is near the side of fixture axis) with lateral surface 9(away from the side of fixture axis) be cambered surface, as shown in Figure 3.Be arranged to cambered surface and make the fixture surface of the work of can better fitting, clamp more firmly, workpiece and fixture contact area are larger, and workpiece is stressed more even, avoids stress to concentrate the damage to workpiece.
As optional mode, in above-mentioned fixture, described clamping part 3 is fixed on described disk removably.Clamping part is arranged to removably, facilitate moving and depositing of fixture, also be convenient to the maintenance of clamping part and replacing, can also be equipped with a series of clamping parts with different interior lateral surface radians, when the workpiece of processing different size, select suitable clamping part, clamping part and surface of the work shape are more adapted to, and contact area is larger.
As optional mode, in above-mentioned fixture, described clamping part 3 surfaces are provided with anti-skidding striped.Increase the friction of clamping part and workpiece, prevent from adding man-hour workpiece and slide with respect to fixture, described anti-skidding striped can also be arranged to rhombus striped, realize multi-direction anti-skidding.
As optional mode, in above-mentioned fixture, described clamping part 3 is evenly equipped with trip bolt 6.By trip bolt is set, make clamping more firm, be more conducive to less eccentric throw, improve machining accuracy, make the clamping of workpiece more convenient, the alignment that can further pack workpiece and fixture by adjusting trip bolt, also can adapt to the small variations of different workpieces on diameter simultaneously.
As optional mode, in above-mentioned fixture, the inside and outside side of the end face of described trip bolt 6 or described clamping part 3 is soft metal or wear-resistant macromolecule material.Described soft metal is the good materials of the lower ductility of hardness such as aluminium, copper, and described soft metal or wear-resistant macromolecule material make to produce faint distortion in clamping, can make fixture and workpiece laminating tightr, clamps more firm.
As optional mode, in above-mentioned fixture, the length of the length of described clamping part 3 and workpiece to be processed 7 is suitable.Make fixture to can be along workpiece spindle to substantially realizing integral retaining, avoid again that clamping part is long and impact adds the feed operation in man-hour.
embodiment 2
In the fixture described in embodiment 1, on described disk 2, be also provided with the elongated slot or the round 4 that radially extend, described clamping part 3 is fixedly connected in described elongated slot or round 4 with removably.By adjusting the position of clamping part in elongated slot or selecting different rounds, can adjust clamping part to the distance of fixture axis, to adapt to the needs of the workpiece of turning different-diameter.
As optional mode, in above-mentioned fixture, on described disk 2, be also provided with locating pin 5, described locating pin 5 diameters are slightly less than the width of elongated slot or the diameter of round, can pass elongated slot or round 4, withstand workpiece end face, workpiece is positioned, prevent from rotating in fixture.
embodiment 3
In the fixture described in the various embodiments described above, the length of described clamping part 3 is slightly longer than workpiece to be processed 7, in described fixture, also comprise end cap 10 and locating pin 5, described end cap 10 is annular, on it, be evenly equipped with the stopper slot 11 consistent with described clamping part 3 quantity, described stopper slot 11 and described clamping part 3 matched in clearance, on described end cap 10, be also provided with the elongated slot or the round 4 that radially extend, the diameter of described locating pin 5 is slightly less than the width of elongated slot or the diameter of round, can pass elongated slot or round, withstand workpiece end face, workpiece is positioned.End cap 10 and locating pin 5 are set and can further prevent that workpiece from rotating with respect to fixture.If locating pin 5 is all set on described disk 2 and end cap 10, positioning action is stronger and can reduce the moment of torsion that workpiece bears in turning process.
As optional mode, in above-mentioned fixture, the group number of described elongated slot number or round 4 is identical with described stopper slot 11 quantity, described elongated slot or round and described stopper slot interlaced arrangement.
While adopting fixture turning major axis class cylindrical workpiece extrados described in the utility model, described taper shank 1 is inserted in lathe spindle internal taper hole and clamped, workpiece to be processed 7 is enclosed within on all clamping parts 3, make described clamping part 3 push against the intrados of workpiece to be processed 7, make lathe inner main axis, taper shank 1, disk 2, workpiece to be processed 7 coaxial, starting lathe can carry out turning processing to workpiece extrados, as shown in Figure 5.
While adopting fixture turning major axis class cylindrical workpiece intrados described in the utility model, described taper shank 1 is inserted in lathe spindle internal taper hole and clamped, workpiece to be processed 7 is set in the cavity that all clamping part 3 medial surfaces surround, make the extrados of described clamping part 3 clamping workpieces to be processed 7, make lathe inner main axis, taper shank 1, disk 2, workpiece to be processed 7 coaxial, start lathe, from one end feed away from disk 2, can carry out turning processing to workpiece intrados, as shown in Figure 6.
In optional mode described in the utility model, can also before turning processing, described trip bolt 6 be tightened, to increase the chucking power of fixture to workpiece; In optional mode described in the utility model, the locating pin 5 before turning processing on adjustment disk 2 and tighten, make it pass the end that disk 2 props up workpiece to be processed 7, to arrive, further prevent the effect of skidding; In optional mode described in the utility model, can also before turning processing, described end cap 10 be enclosed within to workpiece to be processed away from one end of disk 2, and each clamping part 3 is stuck in stopper slot 11, adjust the position of locating pin 5 in elongated slot or round 4 and tighten, make it pass the end that end cap 10 props up workpiece to be processed 7, to arrive, further prevent the effect of skidding.
The foregoing is only preferred embodiment of the present utility model, is only illustrative for the utility model, and nonrestrictive; Those of ordinary skills understand, and in the spirit and scope that limit, can carry out many changes to it at the utility model, revise, and even equivalence change, but all will fall into protection domain of the present utility model.
Claims (10)
1. the fixture for turning major axis class cylindrical workpiece, it is characterized in that, comprise taper shank, the clamping part of disk and at least three strips, one end of described taper shank and disk is coaxially fixing, described clamping part is fixed on the other end of described disk, and described clamping part is distributed on described disk, and each clamping part equates to the distance of disc centre.
2. the fixture for turning major axis class cylindrical workpiece according to claim 1, is characterized in that, side and abaxial side near axle in described clamping part are cambered surface.
3. the fixture for turning major axis class cylindrical workpiece according to claim 1, is characterized in that, described clamping part is fixed on described disk removably.
4. the fixture for turning major axis class cylindrical workpiece according to claim 1, is characterized in that, is also provided with the elongated slot or the round that radially extend on described disk, and described clamping part is fixedly connected in described elongated slot or round with removably.
5. the fixture for turning major axis class cylindrical workpiece according to claim 4, it is characterized in that, on described disk, be also provided with locating pin, described locating pin diameter is slightly less than the width of elongated slot or the diameter of round, can withstand workpiece end face through elongated slot or round, workpiece is positioned, prevent that it from rotating in fixture.
6. the fixture for turning major axis class cylindrical workpiece according to claim 1, is characterized in that, described clamping part surface is provided with anti-skidding striped.
7. the fixture for turning major axis class cylindrical workpiece according to claim 1, is characterized in that, is evenly equipped with vertically trip bolt on described clamping part.
8. the fixture for turning major axis class cylindrical workpiece according to claim 1, is characterized in that, the length of described clamping part is suitable with the length of workpiece to be processed.
9. the fixture for turning major axis class cylindrical workpiece according to claim 1, it is characterized in that, the length of described clamping part is slightly longer than workpiece to be processed, in described fixture, also comprise end cap and locating pin, described end cap is annular, on it, be evenly equipped with the stopper slot consistent with described clamping part quantity, described stopper slot and described clamping part matched in clearance, on described end cap, be also provided with the elongated slot or the round that radially extend, the diameter of described locating pin is slightly less than the width of elongated slot or the diameter of round, can to workpiece, position through elongated slot or round.
10. the fixture for turning major axis class cylindrical workpiece according to claim 9, is characterized in that, the group number of described elongated slot number or round is identical with described stopper slot quantity, described elongated slot or round and described stopper slot interlaced arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136023.0U CN203751797U (en) | 2014-03-25 | 2014-03-25 | Fixture for turning long shaft type cylindrical workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136023.0U CN203751797U (en) | 2014-03-25 | 2014-03-25 | Fixture for turning long shaft type cylindrical workpieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203751797U true CN203751797U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420136023.0U Expired - Fee Related CN203751797U (en) | 2014-03-25 | 2014-03-25 | Fixture for turning long shaft type cylindrical workpieces |
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| CN (1) | CN203751797U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105917022A (en) * | 2014-08-22 | 2016-08-31 | 三井金属矿业株式会社 | Method for manufacturing target material for sputtering target and claw member |
| CN109128891A (en) * | 2018-09-26 | 2019-01-04 | 桂林福达股份有限公司 | Tooling for annulus plate part rat holing |
| CN110814799A (en) * | 2019-11-06 | 2020-02-21 | 博信矿山科技（徐州）股份有限公司 | Positioning fixture for sawing cylindrical workpieces |
| CN112658614A (en) * | 2020-12-22 | 2021-04-16 | 武汉永辉宏昌制冷配件有限公司 | Special tool and process for processing Bundy tube roller excircle groove for box condenser |
| CN112846860A (en) * | 2021-02-22 | 2021-05-28 | 四川明日宇航工业有限责任公司 | Thin-wall cylinder part machining tool and machining method |
| CN114178557A (en) * | 2021-12-29 | 2022-03-15 | 湖北三江航天红阳机电有限公司 | Cylindrical skin processing method |
| CN114536121A (en) * | 2022-03-23 | 2022-05-27 | 山东大学 | Flexible clamping mechanism for grinding machining and grinding machining device |
-
2014
- 2014-03-25 CN CN201420136023.0U patent/CN203751797U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105917022A (en) * | 2014-08-22 | 2016-08-31 | 三井金属矿业株式会社 | Method for manufacturing target material for sputtering target and claw member |
| CN109128891A (en) * | 2018-09-26 | 2019-01-04 | 桂林福达股份有限公司 | Tooling for annulus plate part rat holing |
| CN110814799A (en) * | 2019-11-06 | 2020-02-21 | 博信矿山科技（徐州）股份有限公司 | Positioning fixture for sawing cylindrical workpieces |
| CN112658614A (en) * | 2020-12-22 | 2021-04-16 | 武汉永辉宏昌制冷配件有限公司 | Special tool and process for processing Bundy tube roller excircle groove for box condenser |
| CN112846860A (en) * | 2021-02-22 | 2021-05-28 | 四川明日宇航工业有限责任公司 | Thin-wall cylinder part machining tool and machining method |
| CN114178557A (en) * | 2021-12-29 | 2022-03-15 | 湖北三江航天红阳机电有限公司 | Cylindrical skin processing method |
| CN114178557B (en) * | 2021-12-29 | 2023-08-15 | 湖北三江航天红阳机电有限公司 | Cylindrical skin processing method |
| CN114536121A (en) * | 2022-03-23 | 2022-05-27 | 山东大学 | Flexible clamping mechanism for grinding machining and grinding machining device |
| CN114536121B (en) * | 2022-03-23 | 2023-02-28 | 山东大学 | Flexible clamping mechanism for grinding machining and grinding machining device |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20140806 Termination date: 20160325 |
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| CF01 | Termination of patent right due to non-payment of annual fee |