CN201470893U - Special clamp for crankshaft lathe - Google Patents
Special clamp for crankshaft lathe Download PDFInfo
- Publication number
- CN201470893U CN201470893U CN2009202247319U CN200920224731U CN201470893U CN 201470893 U CN201470893 U CN 201470893U CN 2009202247319 U CN2009202247319 U CN 2009202247319U CN 200920224731 U CN200920224731 U CN 200920224731U CN 201470893 U CN201470893 U CN 201470893U
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- CN
- China
- Prior art keywords
- clamp
- jar
- trapezoidal screw
- fixture seat
- clamping fixture
- 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 in particular relates to a special clamp for a crankshaft lathe, which comprises a clamp body, wherein the clamp body comprises a receiving tray and a clamp seat, a trapezoidal screw is arranged between the receiving tray and the clamp seat, both ends of the trapezoidal screw are installed on a trapezoidal screw bearing fixed on the receiving tray, the clamp seat is connected with the trapezoidal screw through a slide block, a clamping tank is arranged at the other end of the clamp seat, a clamping tank bearing is arranged between the clamping tank and the clamp seat, an index positioning pinhole is arranged on the clamp seat, the clamping tank and the clamp seat are fixed through rhombic positioning pins and clamped through clamp rings, and a pressing block and a positioning block are arranged at the outer end of the clamping tank. The utility model solves the defects of large processing difficulty and low processing efficiency caused by no specialized clamp when a crankshaft is processed in the prior art, and the special clamp for the crankshaft lathe has the advantages of convenient use, wide application range, high processing precision and high efficiency.
Description
Technical field
The utility model is specifically related to a kind of crankshaft toothed wheel special fixture.
Background technology
Bent axle is one of the strength member of load, transferring power that withstands shocks in the engine, its structure and stressed complexity, live load is big, in order to guarantee the stationarity of engine operation, the connecting rod neck phase angle of different bent axles is distributed with 120 °, 72 °, 90 °, 180 ° or more.And requirement on machining accuracy is all very high, generally requires tolerance+15 '.The processing of present bent axle does not also have specialized anchor clamps, and it is big to add the man-hour difficulty, wastes time and energy, and is difficult to guarantee required precision.
The utility model content
The purpose of this utility model does not have specialized anchor clamps to cause the defective that difficulty of processing is big, working (machining) efficiency is low when being to solve the prior art machining crankshafts, a kind of easy to use, machining accuracy is high, efficient is high crankshaft toothed wheel special fixture is provided.
The utility model is achieved through the following technical solutions:
It is a kind of crankshaft toothed wheel special fixture, it is characterized in that comprising that clamp body, clamp body form by connecing dish and clamping fixture seat, connect between dish and the clamping fixture seat and be provided with trapezoidal screw, described trapezoidal screw two ends are installed in and are fixed on the trapezoidal screw bearing that connects on the dish, clamping fixture seat is connected with trapezoidal screw by slide block, the clamping fixture seat other end is provided with the folder jar, be provided with a folder jar bearing between described folder jar and the clamping fixture seat, clamping fixture seat is provided with the calibration dowel hole, the folder jar is located by the rhombus alignment pin with clamping fixture seat, clamped by clamping ring, the outer end of folder jar is provided with briquetting and locating piece.
The folder jar is provided with worm screw and balance weight.The worm screw two ends are installed on the worm bearing that is fixed on the folder jar.
Described clamping fixture seat is provided with and presss from both sides jar index dial of coupling.
The utlity model has easy to use, applied widely, machining accuracy height, the advantage that efficient is high.The utility model is installed on the crankshaft toothed wheel, clamping workpiece can be finished the rod journal cylindrical, open the processing of shelves, arm circular arc, the throw of crankshaft of bent axle is less than 250mm, six cylinders or eight cylinder crankshafts, as increase the calibration dowel hole, also can finish the processing of five, seven, nine cylinder crankshafts, according to different lathes, change the clamp body be connected with the lathe flange, can realize connecting of frock and lathe.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 removes structural representation behind the balance weight for the utility model;
Fig. 3 is the A-A cutaway view among Fig. 2;
Fig. 4 is the utility model user mode reference diagram.
As shown in FIG.: 1 connects dish; 2 clamping fixture seats; 3 trapezoidal screws; 4 folder jar bearings; 5 rhombus alignment pins; 6 trapezoidal screw bearings; 7 briquettings; 8 locating pieces; 9 folder jars; 10 clamping rings; 11 worm screws; 12 worm bearings; 13 index dials; 14 balance weights; 15 cylindrical pin with internal threads; 16T type groove bolt; 17 lathe ring flanges; 18 bent axles.
The specific embodiment
Below in conjunction with accompanying drawing, be that example is further elaborated the utility model with processing N330 six-cylinder crankshaft.
As Fig. 1, Fig. 2, shown in Figure 3: clamp body comprises and connects dish 1 and clamping fixture seat 2, trapezoidal screw 3 two ends are installed in and are fixed on the trapezoidal screw bearing 6 that connects on the dish 1, clamping fixture seat 2 the inners are connected with trapezoidal screw 3 by slide block, the outer end of clamping fixture seat 2 is connected with folder jar 9, be provided with a folder jar bearing 4 between clamping fixture seat 2 and the folder jar 9, clamping fixture seat 2 is provided with a plurality of calibration dowel holes, connect by rhombus alignment pin 5 between clamping fixture seat 2 and the folder jar 9, the outer end of folder jar 9 is provided with briquetting 7 and locating piece 8, one end of folder jar 9 also is provided with worm screw 11 and balance weight 14, worm screw 11 two ends are installed on the worm bearing 12, also are provided with and press from both sides jar index dial 13 of 9 couplings on the clamping fixture seat 2.
When the utility model uses, as shown in Figure 4: be connected with bolt 16 by part T type groove with lathe ring flange 17 with connecing dish 1 respectively at the two ends of bent axle 17, use mandrel centering frock behind the position of lathe requirement, squeeze into taper pin with internal thread 15 and locate.
Adjust eccentric throw to 220mm by the trapezoidal screw 3 of two ends frock earlier, opposite side at folder jar 9 disposes corresponding two balance weights 14, make it to keep balance with the weight of frock and bent axle 17, with bent axle 17 two ends technology chucks, flywheel end face dowel hole and flywheel end face location, be the plane and two pits positioning principle, chuck is placed on the locating piece 8 of two ends folder jar 9, the flywheel end face is against folder jar 9 end faces, the calibration dowel hole that left end rhombus alignment pin 5 inserts on the clamping fixture seat 2, guarantee the axial and circumferential location of workpiece on anchor clamps, clamp crankshaft two end technology chuck with briquetting 7, Fig. 4 is the 1st of the processing six-cylinder crankshaft the, 6 cylinder rod axle journal schematic diagrames, earlier rhombus alignment pin 5 is inserted in the corresponding calibration dowel hole, compress clamping ring 10, process the 1st, behind the 6 cylinder rod axle journals, extract frock two ends rhombus alignment pin 5, unclamp clamping ring 10, rotating clamp jar 9 changes 120 ° counterclockwise, insert rhombus alignment pin 5, compress clamping ring 10, can process the 2nd, 5 cylinder rod axle journals can be finished the processing of other axle journal successively.
Each rod journal two ends arm center of arc is positioned at 60 ° of spindle centerline rotations, is 140mm apart from the alignment of shafts.When processing arm circular arc, at first two ends trapezoidal screw 3 being adjusted eccentric throw is 140mm, drive folder jar 9 with the 1st, 6 cylinder rod journal centre positions clockwise (counterclockwise) by rotary worm 11 again and turn clockwise 60 °, insert rhombus alignment pin 5, clamping ring 10 clamps folder jar 9, can process the 1st, 6,2,5 cylinder arm circular arcs one end, in like manner, turn clockwise again and press from both sides 120 ° in jar, can process the 1st, 6,3,4 cylinder arm circular arcs one end, turn clockwise again and press from both sides 120 ° in jar, can process the 2nd, 5,3,4 cylinder arm circular arcs one end.
In like manner can process eight cylinder crankshafts, eight cylinder crankshaft phase angles are 90 °.
Claims (3)
1. crankshaft toothed wheel special fixture, it is characterized in that comprising that clamp body, clamp body form by connecing dish and clamping fixture seat, connect between dish and the clamping fixture seat and be provided with trapezoidal screw, described trapezoidal screw two ends are installed in and are fixed on the trapezoidal screw bearing that connects on the dish, clamping fixture seat is connected with trapezoidal screw by slide block, the clamping fixture seat other end is provided with the folder jar, be provided with a folder jar bearing between described folder jar and the clamping fixture seat, clamping fixture seat is provided with the calibration dowel hole, the folder jar is located by the rhombus alignment pin with clamping fixture seat, clamped by clamping ring, the outer end of folder jar is provided with briquetting and locating piece.
2. crankshaft toothed wheel special fixture according to claim 1 is characterized in that the folder jar is provided with worm screw and balance weight.The worm screw two ends are installed on the worm bearing that is fixed on the folder jar.
3. crankshaft toothed wheel special fixture according to claim 1 is characterized in that described clamping fixture seat is provided with and presss from both sides jar index dial of coupling,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202247319U CN201470893U (en) | 2009-08-21 | 2009-08-21 | Special clamp for crankshaft lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202247319U CN201470893U (en) | 2009-08-21 | 2009-08-21 | Special clamp for crankshaft lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201470893U true CN201470893U (en) | 2010-05-19 |
Family
ID=42407134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202247319U Expired - Fee Related CN201470893U (en) | 2009-08-21 | 2009-08-21 | Special clamp for crankshaft lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201470893U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729002A (en) * | 2012-03-30 | 2012-10-17 | 北京中清能发动机技术有限公司 | Method for machining combined crankshaft of crank round slide block and special clamp therefor |
| CN102773502A (en) * | 2012-08-09 | 2012-11-14 | 杭州电子科技大学 | Diesel engine crankshaft machining device |
| CN103331622A (en) * | 2013-06-28 | 2013-10-02 | 侯马市东鑫机械铸造有限公司 | Pneumatic positioning and clamping device for processing crankshaft connecting rod |
| CN106112633A (en) * | 2016-08-30 | 2016-11-16 | 辽宁五八内燃机配件有限公司 | A kind of crankshaft crank pin journal processing eccentric fixture |
-
2009
- 2009-08-21 CN CN2009202247319U patent/CN201470893U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729002A (en) * | 2012-03-30 | 2012-10-17 | 北京中清能发动机技术有限公司 | Method for machining combined crankshaft of crank round slide block and special clamp therefor |
| CN102729002B (en) * | 2012-03-30 | 2015-10-28 | 北京中清能发动机技术有限公司 | The processing method of crank round slider built-up crankshaft |
| CN102773502A (en) * | 2012-08-09 | 2012-11-14 | 杭州电子科技大学 | Diesel engine crankshaft machining device |
| CN102773502B (en) * | 2012-08-09 | 2014-04-02 | 杭州电子科技大学 | Diesel engine crankshaft machining device |
| CN103331622A (en) * | 2013-06-28 | 2013-10-02 | 侯马市东鑫机械铸造有限公司 | Pneumatic positioning and clamping device for processing crankshaft connecting rod |
| CN103331622B (en) * | 2013-06-28 | 2015-07-15 | 侯马市东鑫机械铸造有限公司 | Pneumatic positioning and clamping device for processing crankshaft connecting rod |
| CN106112633A (en) * | 2016-08-30 | 2016-11-16 | 辽宁五八内燃机配件有限公司 | A kind of crankshaft crank pin journal processing eccentric fixture |
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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: 20100519 Termination date: 20150821 |
|
| EXPY | Termination of patent right or utility model |