CN201329512Y - Turning fixture for crankshaft - Google Patents
Turning fixture for crankshaft Download PDFInfo
- Publication number
- CN201329512Y CN201329512Y CNU2008201714723U CN200820171472U CN201329512Y CN 201329512 Y CN201329512 Y CN 201329512Y CN U2008201714723 U CNU2008201714723 U CN U2008201714723U CN 200820171472 U CN200820171472 U CN 200820171472U CN 201329512 Y CN201329512 Y CN 201329512Y
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- CN
- China
- Prior art keywords
- eccentric clamping
- axle sleeve
- hole
- flange
- eccentric
- 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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Abstract
The utility model discloses a turning fixture for a crankshaft. The turning fixture comprises a flange (7) , an eccentric clamping head (4) and a shaft sleeve (1), wherein, the flange is connected with a machine tool main shaft; the eccentric clamping head (4) is eccentrically connected with the flange (1); an axial through hole (10) is formed on the eccentric clamping head (4); the shaft sleeve (1) is positioned in the through hole (10); the axial length of the shaft sleeve (1) is less than that of the eccentric clamping head (4); and a workpiece locking mechanism is arranged between the shaft sleeve (1) and the eccentric clamping head (4). The utility model has the advantages of high clamping stability and low manufacturing cost.
Description
Technical field:
The utility model relates to a kind of bent axle turning clamp.
Background technology:
As everyone knows, crankshaft part is different from the coaxial class part of other revolving body, is formed by connecting because it is a returnning by a plurality of different axis, thereby its difficulty when processing excircles or end face on lathe is increased greatly.In the prior art, the workman generally adopts the anchor clamps with following structure when machining crankshafts: it comprises one with the coaxial flange connecting of machine tool chief axis, the vee-block that is connected with flange off-centre and be connected the pressing plate that is used to compress bent axle on the vee-block.Though the anchor clamps of said structure can satisfy the requirement of machining crankshafts class part on lathe substantially, but, still there are following two weak points in it: 1, because above-mentioned anchor clamps fix crankshaft workpiece by a vee-block and a pressing plate, be that it is to face bent axle by the V-arrangement of vee-block to position, one side by pressing plate with Work-sheet pressing on vee-block, therefore, when these anchor clamps are followed machine tool chief axis when turning round together, pressing plate is easy to take place loosening phenomenon under the workpiece action of centrifugal force, cause the clamping stability of these anchor clamps to descend greatly, thereby cause the bent axle machining accuracy error to occur; 2, the vee-block that is used to locate bent axle need finish grind its whole V-arrangement face usually in first being processed, because the length of V-arrangement face is all long usually, therefore causes the manufacturing cost of these anchor clamps than higher.
The utility model content:
The technical problems to be solved in the utility model is to provide a kind of clamping stability height, the bent axle turning clamp of low cost of manufacture.
Technical solution of the present utility model is that a kind of bent axle turning clamp with following structure is provided: it comprises and being used for and machine tool chief axis flange connecting, eccentric clamping and axle sleeve; Described eccentric clamping is connected with flange is eccentric; Described eccentric clamping is provided with axially extending bore; Described axle sleeve is positioned at through hole; The axial length of described axle sleeve is less than the axial length of described eccentric clamping; Be provided with a workpiece retaining mechanism between described axle sleeve and the eccentric clamping.
After adopting said structure, compared with prior art, the utlity model has following advantage: adopt vee-block and pressing plate bent axle to be clamped different with prior art, the utility model is to come workpiece is carried out clamping and location by eccentric clamping and the axle sleeve that is positioned at the eccentric clamping through hole, because described axle sleeve can make its inner cylinder face pack tightly the whole outer circumference surface of processed bent axle fully by the workpiece retaining mechanism, therefore, the utility model is in following the rotating together process of machine tool chief axis, can not be subjected to the influence of workpiece centrifugal force and loosening phenomenon takes place, thereby guarantee that processed bent axle can have higher clamping stability in process; Meanwhile, in the utility model since the axial length of the axle sleeve that directly contacts with processed bent axle less than the axial length of described eccentric clamping, therefore, adding man-hour, only get final product processing correct grinding less than the axle sleeve of eccentric clamping, need not again the whole inner cylinder face of eccentric clamping to be processed correct grinding, thereby effectively saved manufacturing cost of the present utility model.
As a kind of improvement of the present utility model, can be connected the alignment pin more than two or two between described eccentric clamping and the flange.The setting of alignment pin be for prevent eccentric clamping in the course of the work owing to the influence that is subjected to moment of torsion produce the trace skew, thereby further improve clamping stability of the present utility model.
Description of drawings:
Fig. 1 is the perspective view of the utility model bent axle turning clamp.
Fig. 2 is the decomposition texture schematic diagram of Fig. 1.
Shown in the figure, 1, axle sleeve, 2, screw I, 3, alignment pin, 4, eccentric clamping, 5, screw II, 6, the arc shrinkage pool, 7, flange, 8, projection, 9, opening II, 10, through hole, 11, opening I, 12, the Connection Block part, 13, retained part,
The specific embodiment:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
As Fig. 1, Fig. 2 and shown in Figure 3, in this specific embodiment, the utility model bent axle turning clamp comprises and being used for and machine tool chief axis flange connecting 7, eccentric clamping 4 and axle sleeve 1; Described eccentric clamping 4 is connected by three screw I2 and flange 1 off-centre, in other words, and the eccentric axis of the axis of eccentric clamping 4 and flange 1; Described eccentric clamping 4 is provided with axially extending bore 10; Described axle sleeve 1 is positioned at through hole 10; The axial length of described axle sleeve 1 is less than the axial length of described eccentric clamping 4; Be connected with two alignment pins 3 between described eccentric clamping 4 and the flange 7.Be provided with a workpiece retaining mechanism between described axle sleeve 1 and the eccentric clamping 4, in this specific embodiment, what the workpiece retaining mechanism between described axle sleeve 1 and the eccentric clamping 4 adopted is following concrete structure: the wall of described axle sleeve 1 is provided with axially open I11; Described eccentric clamping 4 is made up of retained part 13 and Connection Block part 12; The external peripheral surface of described retained part 13 is provided with projection 8; Described projection 8 be provided with tapped through hole 10 and with the corresponding axially open II9 of opening I11; Described axially open II9 communicates with through hole 10; Be connected with screw II5 on the described tapped through hole 10; Described retained part 13 bottoms are provided with arc shrinkage pool 6 near described Connection Block part 12 places.
Claims (3)
1, a kind of bent axle turning clamp, it comprises and being used for and machine tool chief axis flange connecting (7), it is characterized in that: it also comprises eccentric clamping (4) and axle sleeve (1); Described eccentric clamping (4) is connected with flange (1) is eccentric; Described eccentric clamping (4) is provided with axially extending bore (10); Described axle sleeve (1) is positioned at through hole (10); The axial length of described axle sleeve (1) is less than the axial length of described eccentric clamping (4); Be provided with a workpiece retaining mechanism between described axle sleeve (1) and the eccentric clamping (4).
2, bent axle turning clamp according to claim 1 is characterized in that: the workpiece retaining mechanism between described axle sleeve (1) and the eccentric clamping (4) is meant that described axle sleeve (1) wall is provided with axially open I (11); Described eccentric clamping (4) is made up of retained part (13) and Connection Block part (12); The external peripheral surface of described retained part (13) is provided with projection (8); Described projection (8) be provided with tapped through hole (10) and with the corresponding axially open II of opening I (11) (9); Described axially open II (9) communicates with through hole (10); Be connected with screw II (5) on the described tapped through hole (10); Arc shrinkage pool (6) is located to be provided with near described Connection Block part (12) in described retained part (13) bottom.
3, bent axle turning clamp according to claim 1 and 2 is characterized in that: be connected with the alignment pin (3) more than two or two between described eccentric clamping (4) and the flange (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201714723U CN201329512Y (en) | 2008-12-30 | 2008-12-30 | Turning fixture for crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201714723U CN201329512Y (en) | 2008-12-30 | 2008-12-30 | Turning fixture for crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201329512Y true CN201329512Y (en) | 2009-10-21 |
Family
ID=41222886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201714723U Expired - Fee Related CN201329512Y (en) | 2008-12-30 | 2008-12-30 | Turning fixture for crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201329512Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551894A (en) * | 2013-09-24 | 2014-02-05 | 马鞍山马钢表面工程技术有限公司 | Elastic antiskid shaft sleeve for machining of galvanization sink roll |
| CN103612147A (en) * | 2013-12-11 | 2014-03-05 | 中捷机床有限公司 | Turning clamp device special for bent axle and manufacturing method |
| CN105458801A (en) * | 2015-12-17 | 2016-04-06 | 中国海洋石油总公司 | Eccentric tool for lathe and using method for eccentric tool |
| CN105965301A (en) * | 2016-07-01 | 2016-09-28 | 江苏赫夫特齿轮制造有限公司 | Crankshaft machining clamp |
| CN108356476A (en) * | 2018-03-23 | 2018-08-03 | 博瑞特热能设备股份有限公司 | The welding tooling of boiler bias flue |
| CN108972236A (en) * | 2018-08-13 | 2018-12-11 | 珠海格力电器股份有限公司 | Crankshaft eccentric circle processing unit (plant) and processing method |
-
2008
- 2008-12-30 CN CNU2008201714723U patent/CN201329512Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551894A (en) * | 2013-09-24 | 2014-02-05 | 马鞍山马钢表面工程技术有限公司 | Elastic antiskid shaft sleeve for machining of galvanization sink roll |
| CN103551894B (en) * | 2013-09-24 | 2016-08-17 | 马鞍山马钢表面工程技术有限公司 | Zinc-plated sinking roller processing elastic anti-slip axle sleeve |
| CN103612147A (en) * | 2013-12-11 | 2014-03-05 | 中捷机床有限公司 | Turning clamp device special for bent axle and manufacturing method |
| CN103612147B (en) * | 2013-12-11 | 2015-12-02 | 中捷机床有限公司 | The turning clamp device that bent axle is special and manufacture method |
| CN105458801A (en) * | 2015-12-17 | 2016-04-06 | 中国海洋石油总公司 | Eccentric tool for lathe and using method for eccentric tool |
| CN105458801B (en) * | 2015-12-17 | 2018-03-23 | 中国海洋石油总公司 | Lathe eccentric frock and its application method |
| CN105965301A (en) * | 2016-07-01 | 2016-09-28 | 江苏赫夫特齿轮制造有限公司 | Crankshaft machining clamp |
| CN108356476A (en) * | 2018-03-23 | 2018-08-03 | 博瑞特热能设备股份有限公司 | The welding tooling of boiler bias flue |
| CN108972236A (en) * | 2018-08-13 | 2018-12-11 | 珠海格力电器股份有限公司 | Crankshaft eccentric circle processing unit (plant) and processing 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: 20091021 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |