CN201659459U - Three-cylinder crankshaft indexing plate - Google Patents
Three-cylinder crankshaft indexing plate Download PDFInfo
- Publication number
- CN201659459U CN201659459U CN2010201771850U CN201020177185U CN201659459U CN 201659459 U CN201659459 U CN 201659459U CN 2010201771850 U CN2010201771850 U CN 2010201771850U CN 201020177185 U CN201020177185 U CN 201020177185U CN 201659459 U CN201659459 U CN 201659459U
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- fixed
- fixed structure
- calibration
- fluting
- indexing
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- Expired - Fee Related
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a three-cylinder crankshaft indexing plate comprising an indexing structure and a fixed structure which are integrated with each other, wherein the center of the indexing structure and the fixed structure is provided with a center hole; three bumps are arranged on the outer circumference of the indexing structure; the side surface of each bump is provided with an indexing surface which is parallel to the axis of the center hole and has better planeness; the indexing surfaces of the three bumps are distributed in 120 degrees; the fixed structure comprises a fixed part and a moving part; an open slot is arranged between the fixed part and the moving part and cuts the center hole of the fixed structure into two parts; one end of the open slot penetrates through the outer wall of the fixed structure; a screw hole is arranged on the fixed part penetrated by the open slot; the moving part is provided with a through hole; a bolt can pass through the through hole and is fixed in the screw hole; a separating groove is arranged between the moving part of the fixed structure and the indexing structure; the other end of the open slot is arranged in the outer wall of the fixed structure; and the end of the open slot arranged in the outer wall of the fixed structure is provided with a stress dispersing hole.
Description
Technical field
The utility model relates to a kind of orientation tool, particularly a kind of three cylinder crankshaft index dials.
Background technology
At present, the equipment of state's intrinsic motivation manufacturing integral body also has a certain distance compared with developed countries, and backwardness equipment such as general car, radial drill, cam profile lathing, bent axle multitool car are also widely applied, and device efficiency is low, the precision deficiency does not possess flexible ability.The bent axle process equipment is if select import equipment, and then price is very expensive.The domestic bent axle process equipment manufacturer who has takes compromise proposal, promptly purchases inlet fixture and is contained on the self-produced lathe and offers the client.This mode is by three drawbacks.One, inlet fixture price are also very expensive, the cost of high-accuracy clamp account for the lathe totle drilling cost nearly half.Its two, inlet fixture is very strict to lathe main frame self required precision, otherwise is difficult to reach the crankshaft part Accuracy of finish, has increased great difficulty for assembling of lathe later stage and debugging.Its three, inlet fixture internal structure complexity, instructions for use are high and lack the associated core technical data, we can't keep in repair voluntarily in case break down, and can only spend high price to engage anchor clamps supplier to safeguard.So not only strengthen use cost, the more important thing is and delay manufacturing schedule, increased pressure for final delivery just-in-time.
Bent axle machining tool that so good cost performance is badly in need of in numerous domestic automobile vendor, use cost is lower and be easy to safeguard.As everyone knows, numerically controlled lathe is the crank-shaft link neck process equipment that meets very much above-mentioned requirements, and anchor clamps are one of bent axle digital control processing special purpose lathe core components.Jig Design is the emphasis and the difficult point of bent axle digital control processing special purpose lathe design, and wherein the location of bent axle and clamping problem are the most key.
The greatest problem of crank-shaft link neck turning processing is the Clamping Center decentraction of the connecting rod neck centre of gyration and trunnion, must adopt eccentric fixture like this when turning connecting rod neck.Along with petroleum resources are day by day nervous, environmental protection pressure day by day strengthens, country has strengthened support dynamics to automobile with small output volumn, so the engine of numerous producers automobile with small output volumn has adopted three cylinder crankshafts in recent years.Two cylinders are compared in the turning processing of three cylinder crankshafts and four cylinder crankshaft difficulty are bigger.This is that the connecting rod footpath of three cylinder crankshafts evenly distributes at circumferencial direction because the adjacent connecting rod of two cylinders and four cylinder crankshafts directly becomes 180 degree angles, and promptly the adjacent connecting rod of three cylinder crankshafts directly becomes 120 degree angles, its center must be gone to the main axis rotation center when processing the connecting rod footpath at every turn.This requires not satisfy and will cause big mismachining tolerance, even causes bent axle to scrap.
Summary of the invention
The purpose of this utility model provides a kind of three cylinder crankshaft index dials, and this three cylinder crankshafts index dial calibration and location structure are the one state, uses simply, and is not yielding, and the location division ratio is more accurate, long service life.
The utility model is made up of the calibration structure and the fixed structure of one, the center of calibration structure and fixed structure offers a centre bore, have three projections on the outer circumference surface of calibration structure, the side of each projection has the calibration face, the axis parallel of this calibration face and centre bore, and having flatness preferably, the calibration face of three projections is 120 ° of distributions; Fixed structure is made up of fixed part and movable part, offer fluting between fixed part and the movable part, this fluting is cut into two parts with the centre bore of fixed structure, one end of fluting runs through the outer wall of fixed structure, on the fixed part of this fluting through part, offer screw, movable part offers open-work, one bolt can pass open-work and be fixed in the screw, offer separating tank between the movable part of fixed structure and the calibration structure, the fluting other end is arranged in the outer wall of fixed structure, and the fluting end that is arranged in the fixed structure outer wall offers the stress dispersion hole.
Offering of slotting in the fixed structure is that the movable part in order to make fixed structure can be subjected to displacement and be out of shape, so that clamp the axle that passes centre bore.And the offering of separating tank between movable part and the calibration structure is in order to clamp the distortion that bent axle produces the influence of indexing accuracy to be reduced to minimum.
The course of work of the present utility model is:
According to the general processing technology of bent axle turning, when machining crankshafts connecting rod footpath, the crank spindle footpath is completion of processing.At this moment at first use microcephaly's main shaft diameter end of this index dial cover to bent axle, make a calibration in the face of after one of them center of rotation of accurate bent axle, thereby with screw is locked index dial is fixed on the bent axle then, and relief calibration face leans against on the jig locating surface, just can clamp bent axle to have processed; After a connecting rod footpath completion of processing, only need to rotate index dial another calibration face is leaned against on the jig locating surface, clamp the processing that bent axle just can begin second connecting rod footpath.In order to guarantee the continuity of production and processing, can disposable a plurality of index dials be contained on the different bent axles in order to processing.
In addition, calibration face of the present utility model is designed to equally distributed two or four, just can be used for the processing of two cylinders and four cylinder crankshafts.
The beneficial effects of the utility model are: use simply, not yielding, the location division ratio is more accurate, long service life.
Description of drawings
Fig. 1 looks schematic diagram for the master of the utility model embodiment.
Fig. 2 looks schematic diagram for the utility model embodiment right side.
Fig. 3 is the schematic perspective view of the utility model embodiment.
Fig. 4 is another visual angle schematic perspective view of the utility model embodiment.
Fig. 5 is a user mode schematic diagram of the present utility model.
The specific embodiment
See also Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, be embodiment of the present utility model, this embodiment is made up of the calibration structure 1 and the fixed structure 2 of one, the center of calibration structure 1 and fixed structure 2 offers a centre bore 3, have three projections 11 on the outer circumference surface of calibration structure 1, the side of each projection 11 has calibration face 12, the axis parallel of this calibration face 12 and centre bore 3, and perpendicular to the tangent line of outer circumference surface intersection, the calibration face 12 of three projections 11 is 120 ° of distributions; Fixed structure 2 is made up of fixed part 21 and movable part 22, offer fluting 23 between fixed part 21 and the movable part 22, this fluting 23 is cut into two parts with the centre bore 3 of fixed structure 2, one end of fluting 23 runs through the outer wall of fixed structure 2, on the fixed part 21 of these 23 through parts of slotting, offer screw 25, movable part 22 offers open-work 26, one bolt 4 can pass open-work 26 and be arranged in the screw 25, as shown in Figure 5, offer separating tank 5 between the movable part 22 of fixed structure 2 and the calibration structure 1,23 other ends of slotting are arranged in the outer wall of fixed structure 2, and fluting 23 ends that are arranged in fixed structure 2 outer walls offer stress dispersion hole 24.
The fluting 23 of fixed structure 2 is offered, and is for the movable part 22 that makes fixed structure 2 can be subjected to displacement and be out of shape, and can clamp on the axle that is located in centre bore 3.The offering of separating tank 5 between movable part 22 and the calibration structure 1 is in order to clamp the distortion that bent axle produces the influence of indexing accuracy to be reduced to minimum.
The operation principle of present embodiment is:
See also shown in Figure 5, the utility model is set on microcephaly's main shaft diameter end of three cylinder crankshafts 6 by centre bore 3, with fixed structure 2 the utility model is fixed, the one division face 12 of calibration structure 1 of the present utility model is corresponding with a connecting rod neck axle center of three cylinder crankshafts 6, and, process this connecting rod neck with these calibration face 12 location; Other two calibration faces, 12 respectively corresponding other two connecting rod necks, locate with the calibration face 12 of correspondence respectively, can process corresponding connecting rod neck, because three calibration faces 12 are to be 120 ° of distributions, and the utility model is fixed on the bent axle all the time in process, so, can guarantee that the axle center of three connecting rod necks of three cylinder crankshafts 6 is the precision of 120 ° of distributions.
Claims (1)
1. cylinder crankshaft index dial, it is characterized in that: calibration structure and fixed structure by one are formed, the center of calibration structure and fixed structure offers a centre bore, have three projections on the outer circumference surface of calibration structure, the side of each projection has the calibration face, the axis parallel of this calibration face and centre bore, and perpendicular to the tangent line of outer circumference surface intersection, the calibration face of three projections is 120 ° of distributions; Fixed structure is made up of fixed part and movable part, offer fluting between fixed part and the movable part, this fluting is cut into two parts with the centre bore of fixed structure, one end of fluting runs through the outer wall of fixed structure, on the fixed part of this fluting through part, offer screw, movable part offers open-work, one bolt can pass open-work and be fixed in the screw, offer separating tank between the movable part of fixed structure and the calibration structure, the fluting other end is arranged in the outer wall of fixed structure, and the fluting end that is arranged in the fixed structure outer wall offers the stress dispersion hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201771850U CN201659459U (en) | 2010-05-04 | 2010-05-04 | Three-cylinder crankshaft indexing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201771850U CN201659459U (en) | 2010-05-04 | 2010-05-04 | Three-cylinder crankshaft indexing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201659459U true CN201659459U (en) | 2010-12-01 |
Family
ID=43229870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201771850U Expired - Fee Related CN201659459U (en) | 2010-05-04 | 2010-05-04 | Three-cylinder crankshaft indexing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201659459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653070A (en) * | 2011-03-02 | 2012-09-05 | 无锡中亚工具厂 | Indexing ratchet wheel |
-
2010
- 2010-05-04 CN CN2010201771850U patent/CN201659459U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653070A (en) * | 2011-03-02 | 2012-09-05 | 无锡中亚工具厂 | Indexing ratchet wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20110504 |