CN202180368U - Eccentric fixture of bent axle - Google Patents
Eccentric fixture of bent axle Download PDFInfo
- Publication number
- CN202180368U CN202180368U CN2011202909082U CN201120290908U CN202180368U CN 202180368 U CN202180368 U CN 202180368U CN 2011202909082 U CN2011202909082 U CN 2011202909082U CN 201120290908 U CN201120290908 U CN 201120290908U CN 202180368 U CN202180368 U CN 202180368U
- Authority
- CN
- China
- Prior art keywords
- eccentric
- packing
- bent axle
- clamp body
- clamp
- 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 relates to an eccentric fixture of a bent axle, which comprises a main shaft flange plate, a packing, an eccentric plate, a fixture body and a bent axle clamping mechanism, wherein the packing is fixedly arranged in the hole of the main shaft flange plate; an eccentric plate installing hole is arranged on the inner side of the packing; the eccentric plate with an eccentric shaft is fixed on the packing; the inner hole of the fixture body is installed on the eccentric shaft through a bearing; the packing is further provided with a plurality of T-shaped slot holes, and through the matched compacting of a T-shaped bolt and a nut, the fixture body is fixed on the packing; and the bent axle clamping mechanism is installed at the front part of the fixture body. The eccentric plate can be replaced according to different eccentricity sizes of the bent axle. The eccentric fixture has a reasonable structure, is installed simply, is fast and time-saving in operation, has high production efficiency, is safe and reliable, adjusts the eccentricity through replacing the eccentric plate, is applicable to turning and grinding of various large-sized bent axle connecting rod necks, and can meet the working requirements of the bent axle with different eccentricities.
Description
Technical field
The utility model relates to the bent axle anchor clamps of turning or grinding crank-shaft link neck, and specifically a kind of replaceable eccentric disc is transferred the crankshaft eccentric anchor clamps of eccentric throw.
Background technology
We know; Bent axle is one of the strength member of load, transferring power that withstands shocks in the engine; Its structure and stressed complicacy; 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 °, 60 °, 72 °, 90 °, 180 ° or more.And requirement on machining accuracy is all very high.Turning or grinding crank-shaft link neck have all adopted eccentric fixture.For small-sized bent axle is to adjust eccentric throw with leading screw and nut structure; But,, adopted fixing eccentric packing mostly for large-scale bent axle in order to satisfy this requirement because cun required precision of crankshaft eccentric carpenters square is higher; Eccentric packing one end is installed on the machine tool chief axis; The other end links to each other with clamp body or clamp base through rectangular rail, and rotational lead screw drives clamp body through nut or clamp base moves with respect to eccentric packing, adjusts the desired eccentric throw of different bent axles.Not only time-consuming, also be difficult to guarantee required precision.Because bent axle is wide in variety, eccentric throw differs, and makes every sleeve clamp all need an eccentric packing, causes the anchor clamps manufacturing cost high.
Summary of the invention
The utility model technical problem to be solved is the deficiency that overcomes above-mentioned prior art, provides a kind of rational in infrastructure, installs simply, and cost is low, and is safe and reliable, and the replaceable eccentric disc that is suitable for the various large-scale crank-shaft link necks of turning is transferred the crankshaft eccentric anchor clamps of eccentric throw.
The technical scheme that the utility model solves the problems of the technologies described above employing is: a kind of crankshaft eccentric anchor clamps; It comprises spindle flange dish, packing, eccentric disc, clamp body, bent axle clamp mechanism; It is characterized in that: the said packing outside is provided with boss, is fixedly mounted in the spindle flange dish hole through screw, and the packing inboard is provided with the eccentric disc installing hole; The eccentric disc that has eccentric shaft is fixed on the packing through sunk screw, and the clamp body endoporus is installed on the eccentric shaft through bearing; Also be provided with several T-slot holes on the packing, clamp body is provided with the through hole corresponding with the T-slot hole, cooperates through T shape screw and nut to compress, and clamp body is fixed on the packing; The anterior bent axle clamp mechanism of installing of clamp body.
The described bent axle clamp mechanism of the utility model is provided with lower slips, gland, upper slips; Lower slips and upper slips are fixed on clamp body and the gland through screw respectively; The clamp body front part sides is provided with groove; Gland one end is provided with boss, with clamp body one side groove fit, and links to each other with clamp body with hinge pin; Connect a homalocephalus nut through bearing pin in the clamp body opposite side groove, the gland other end is provided with the U-shaped mouth, and the U-shaped mouth penetrates the homalocephalus nut, compresses connection with clamp nut.
The utility model is owing to be provided with an eccentric disc installing hole in the packing inboard, and eccentric disc is fixed on the packing through sunk screw, can be very little according to different crankshaft eccentric carpenters squares, change eccentric disc, and transfer eccentric throw.Against existing technologies, the utility model is rational in infrastructure, installs simply, and operation is fast and saving time, and production efficiency is high, and is safe and reliable, and it is simple that eccentric disc is changed, and no longer need change complex structure, huge packing.The utility model is applicable to the bent axle anchor clamps of making turning or the various large-scale crank-shaft link necks of grinding.Left and right anchor clamps are used to clamp main bearing journal, turning or grinding crank-shaft link neck.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further to describe.
Fig. 1 is the structural representation of the utility model.
Fig. 2 is that the A of Fig. 1 is to sketch map.
Label is among the figure: 1. spindle flange dish, 2. screw, 3. packing, 4.T shape screw, 5. nut; 6. clamp body, 7. sunk screw, 8. bearing, 9. eccentric disc; 10. screw, 11. glands, 12. upper slipses, 13. hinge pin; 14. bent axle, 15. lower slipses, 16. screws, 17. bearing pins, 18. homalocephalus nuts, 19. clamp nuts.
The specific embodiment
Can find out from Fig. 1 and Fig. 2, a kind of crankshaft eccentric anchor clamps, it comprises spindle flange dish 1, packing 3, eccentric disc 9, clamp body 6, bearing 8, bent axle clamp mechanism etc.Said packing 3 outsides are provided with boss, are fixedly mounted in spindle flange dish 1 hole through screw 2, and packing 3 inboards are provided with the eccentric disc installing hole, and the eccentric disc 9 that has eccentric shaft is fixed on the packing 3 through sunk screw 7.Clamp body 6 endoporus are installed in through bearing 8 on the eccentric shaft of eccentric disc 9, specifically are that bearing 8 endoporus are installed on the eccentric shaft, and the cooperation of clamp body 6 endoporus is installed on bearing 8 outer rings; Also be provided with several T-slot holes on the packing 3, clamp body 6 is provided with the through hole corresponding with the T-slot hole, and T shape screw 4 passes the T-slot hole of packing 3 and the through hole on the clamp body 6, cooperates with nut 5 to compress, and clamp body 6 is fixed on the packing 3; The clamp body 6 anterior bent axle clamp mechanism of installing.
The said packing of the utility model 3 inboards are provided with an eccentric disc installing hole, and eccentric disc 9 is fixed on the packing 3 through sunk screw 7, can be very little according to different crankshaft eccentric carpenters squares, change eccentric disc 9.Eccentric disc is changed simple, no longer need change complex structure, huge packing.Transfer eccentric throw through changing eccentric disc, be suitable for doing the crankshaft eccentric anchor clamps of turning, the various large-scale crank-shaft link necks of grinding.Satisfy the job requirement of different crankshaft eccentric distances.
The described bent axle clamp mechanism of the utility model is arranged on clamp body 6 front portions.The bent axle clamp mechanism comprises lower slips 15, gland 11, upper slips 12, hinge pin 13, homalocephalus nut 18, clamp nut 19, bearing pin 17 etc.Lower slips 15 is fixedly mounted on the clamp body 6 through screw 16, and upper slips 12 is fixedly mounted in the gland 11 through screw 10, and upper slips 12 is capable of automatic aligning by pressure trunnion center.Clamp body 6 front part sides are provided with groove, and gland 11 1 ends are provided with boss, with clamp body 6 one side groove fit, and link to each other with clamp body with hinge pin 13, and gland 11 other ends are provided with U type mouth.Connect a homalocephalus nut 18 through bearing pin 17 in the clamp body 6 opposite side grooves, homalocephalus nut 18 removable opening, the U-shaped mouth of gland 11 penetrates the homalocephalus nut, compresses connection with clamp nut 19.During use, be the center, clockwise rotate and open gland 11 with hinge pin 13; Bent axle 14 1 end trunnions just can be put into lower slips 15, rotate counterclockwise the gland 11 that closes, and upper slips 12 contacts the axle 14 trunnion outer round surface of being buckled; In the U type mouth of homalocephalus nut 18 to gland 11; Tighten clamp nut 19, clamp nut 19 compresses homalocephalus nut 18, can clamp main bearing journal.
What the utility model was explained is bent axle left side anchor clamps.The right anchor clamps of the other end are symmetry therewith.The common clamping that realizes main bearing journal of left and right anchor clamps.During use, can be according to different bent axles 14 eccentric throw sizes, the eccentric disc 9 that installing and replacing is suitable is put into left and right clamp mechanism with the crankshaft two end trunnion, depresses left and right clamp mechanism gland, compresses the two ends trunnion.Start lathe, crankshaft rotating, but just neck is turned in turning or grinding.Turning or grinding are intact successively thus respectively turn neck after, withdraw from each associated mechanisms, unloading bent axle can fall.
Claims (2)
1. crankshaft eccentric anchor clamps; It comprises spindle flange dish, packing, eccentric disc, clamp body, bent axle clamp mechanism; It is characterized in that: the said packing outside is provided with boss, is fixedly mounted in the spindle flange dish hole through screw, and the packing inboard is provided with the eccentric disc installing hole; The eccentric disc that has eccentric shaft is fixed on the packing through sunk screw, and the clamp body endoporus is installed on the eccentric shaft through bearing; Also be provided with several T-slot holes on the packing, clamp body is provided with the through hole corresponding with the T-slot hole, cooperates through T shape screw and nut to compress, and clamp body is fixed on the packing; The anterior bent axle clamp mechanism of installing of clamp body.
2. crankshaft eccentric anchor clamps according to claim 1; It is characterized in that: described bent axle clamp mechanism is provided with lower slips, gland, upper slips; Lower slips and upper slips are fixed on clamp body and the gland through screw respectively, and the clamp body front part sides is provided with groove, and gland one end is provided with boss; With clamp body one side groove fit, and link to each other with clamp body with hinge pin; Connect a homalocephalus nut through bearing pin in the clamp body opposite side groove, the gland other end is provided with the U-shaped mouth, and the U-shaped mouth penetrates the homalocephalus nut, compresses connection with clamp nut.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202909082U CN202180368U (en) | 2011-08-11 | 2011-08-11 | Eccentric fixture of bent axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202909082U CN202180368U (en) | 2011-08-11 | 2011-08-11 | Eccentric fixture of bent axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202180368U true CN202180368U (en) | 2012-04-04 |
Family
ID=46173417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202909082U Expired - Fee Related CN202180368U (en) | 2011-08-11 | 2011-08-11 | Eccentric fixture of bent axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202180368U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303258A (en) * | 2011-08-11 | 2012-01-04 | 天润曲轴股份有限公司 | Eccentric clamp of crank shaft |
| CN103639713A (en) * | 2014-01-08 | 2014-03-19 | 大同齿轮(昆山)有限公司 | Clamp for gear eccentric hole machining |
| CN111482641A (en) * | 2020-04-20 | 2020-08-04 | 大连理工大学 | Eccentricity adjusting method for spiral milling hole |
-
2011
- 2011-08-11 CN CN2011202909082U patent/CN202180368U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303258A (en) * | 2011-08-11 | 2012-01-04 | 天润曲轴股份有限公司 | Eccentric clamp of crank shaft |
| CN103639713A (en) * | 2014-01-08 | 2014-03-19 | 大同齿轮(昆山)有限公司 | Clamp for gear eccentric hole machining |
| CN103639713B (en) * | 2014-01-08 | 2017-02-08 | 大同齿轮(昆山)有限公司 | Clamp for gear eccentric hole machining |
| CN111482641A (en) * | 2020-04-20 | 2020-08-04 | 大连理工大学 | Eccentricity adjusting method for spiral milling hole |
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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: 20120404 Termination date: 20140811 |
|
| EXPY | Termination of patent right or utility model |