CN102990472A - High-speed intermittent indexing mechanism - Google Patents
High-speed intermittent indexing mechanism Download PDFInfo
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- CN102990472A CN102990472A CN2012105003191A CN201210500319A CN102990472A CN 102990472 A CN102990472 A CN 102990472A CN 2012105003191 A CN2012105003191 A CN 2012105003191A CN 201210500319 A CN201210500319 A CN 201210500319A CN 102990472 A CN102990472 A CN 102990472A
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Abstract
The invention discloses a high-speed intermittent indexing mechanism which comprises a drive plate and an index plate, wherein the drive plate is arranged on a driving shaft and is arranged under the indexing plate, two drive pins are symmetrically distributed on the drive plate, and a centre line between the two drive pins is arranged at the edge of the drive plate. A plurality of tooth grooves are arranged on the indexing plate, the number of tooth grooves of the indexing plate is as the same as that of teeth of a workpiece, and when the indexing mechanism is arranged at the initial position, the two drive pins are arranged at the centre line of one tooth groove of the indexing plate. The driving shaft drives the drive plate to rotate at a high speed, and the drive pins on the drive plate drive the indexing plate to move in an indexing way, so that the machining technological requirement of high-speed indexing and instant fixing can be realized, and the mechanism is high in production efficiency; the indexing mechanism is stable in transmission, and accurate in indexing; the indexing mechanism is simple and compact in structure, and the transposition and the positioning of the indexing plate can be automatically realized without the conventional brake device and the conventional positioning device; and the indexing mechanism is easy to manufacture, and low in production cost.
Description
Technical field
The invention belongs to the circular index device, be specifically related to a kind of high-speed intermittent dividing mechanism that breaks into the shape special purpose machine tool for the spline cold breakdown.
Background technology
Spline is widely used in the industries such as Aeronautics and Astronautics, automobile, shipbuilding, tractor and heavy-duty machinery because it has the characteristics such as stable drive, compact conformation, bearing capacity height, centering property and guidance quality are good.The traditional generation method of spline shaping carries out the processing method of milling or cutting hobbing, and efficient is low, and mechanical performance and surface quality are poor, and waste resource and the energy.For satisfying all trades and professions development to the needs of spline, the spline manufacture field has been developed new spline cold forming method.Wherein, it is high that cold breakdown breaks into shape efficient, and the deflection of workpiece is little, can significantly improve workpiece metal tissue and finished surface hardness, and machining accuracy is high, and the profile of tooth after the shaping does not need following process.
The spline cold breakdown breaks into the needed special purpose machine tool of shape, for satisfying the spline production technology, the transposition and the calibration that need to adopt intermittent dividing mechanism to come property performance period move, some traditional indexing mechanisms such as ratchet mechanism, Geneva mechanism and incomplete gear mechanism are because noise is large, indexing accuracy is not high, and the reasons such as poor performance can only be used for the low speed dividing apparatus, along with the quickening of productive temp and the needs of precision round subsection, these traditional indexing mechanisms can not well satisfy needs of production.
Summary of the invention
Break into the shape special purpose machine tool in the above-mentioned technical problem that the intermittent dividing mechanism technical field exists in order to overcome existing spline cold breakdown, the object of the invention is to, a kind of high-speed intermittent dividing mechanism is provided, operate steadily, simple in structure, rest accurately and reliably.
High-speed intermittent dividing provided by the invention mechanism comprises driver plate and index dial, and driver plate is installed on the driving shaft and is positioned at the index dial below, has been arranged symmetrically with two fingers on the driver plate, and the center line of two fingers is positioned at the driver plate edge.Be provided with several teeth groove on the described index dial, index dial teeth groove number is identical with the workpiece number of teeth, and when indexing mechanism was positioned at original position, two fingers were positioned at the centerline of a teeth groove of index dial.Described driver plate is installed on the driving shaft, and driver plate moves through driving-chain and links to each other with roll, and workpiece is fixed on the index dial, and the rolling angle beta of pressure roller contact workpiece satisfies formula 1:
The calculating coincidence formula 2 of division angle alpha 2:
Division angle alpha 2 〉=β namely needs to satisfy formula 3:
In above-mentioned three formula, D is the roll tactical diameter, and d is the roll external diameter, and h is the workpiece tooth depth, and Z is index dial teeth groove number.
High-speed intermittent dividing provided by the invention mechanism, its beneficial effect is that driving shaft drives the driver plate High Rotation Speed, and the finger on the driver plate drives index dial and carries out dividing movement simultaneously, can realize the processing technology requirement that high speed indexing and moment are static, and production efficiency is high; The indexing mechanism stable drive, calibration is accurate; Simple in structure, compact, transposition, the location of automatically realizing index dial do not need to add in addition brake and positioner; Easy to manufacture, production cost is low.
Description of drawings
Fig. 1 is present embodiment driver plate and index dial dividing movement structural representation;
Fig. 2 is present embodiment driver plate and the index dial structural representation when moving to position intermittently;
Fig. 3 is present embodiment roll begin the to temper structural representation of workpiece;
Fig. 4 is the temper structural representation of workpiece teeth groove root of present embodiment roll;
Fig. 5 is the structural representation that the present embodiment roll breaks away from the workpiece entity;
Fig. 6 is the structural representation that the present embodiment roll contacts with workpiece.
Mark among the figure:
1. index dial; 2. driving shaft; 3. driver plate; 4. finger; 5. teeth groove; 6. workpiece; 7. roll.
The specific embodiment
With reference to the accompanying drawings, in conjunction with an embodiment, high-speed intermittent dividing provided by the invention mechanism is described in detail.
Embodiment
With reference to Fig. 1-Fig. 6, the high-speed intermittent dividing mechanism of present embodiment comprises driver plate 3 and index dial 1, and driver plate 3 is installed on the driving shaft 2 and is positioned at the index dial below, and the center line that has been arranged symmetrically with 4, two fingers 4 of two fingers on the driver plate 3 is positioned at driver plate 3 edges.Be provided with several teeth groove 5 on the described index dial 1, index dial 1 teeth groove number is identical with the workpiece number of teeth, and when indexing mechanism was positioned at original position, two fingers 4 were positioned at the centerline of 1 one teeth groove 5 of index dial.Described driver plate 3 is installed on the driving shaft 2, and driver plate 3 moves through driving-chain and links to each other with roll 7, and workpiece 6 is fixed on the index dial 1, and the rolling angle beta of pressure roller 7 contact workpiece 6 satisfies formula 1:
The calculating coincidence formula 2 of division angle alpha 2:
Division angle alpha 2 〉=β namely needs to satisfy formula 3:
In above-mentioned three formula, D is the roll tactical diameter, and d is the roll external diameter, and h is the workpiece tooth depth, and Z is index dial teeth groove number.
The operation principle of high-speed intermittent dividing mechanism is as follows: driver plate is installed on the driving shaft, driving shaft drives the driver plate High Rotation Speed, finger on the driver plate drives index dial and realizes dividing movement simultaneously, the driver plate motion is continuous, and when two fingers on the driver plate turn to intermittently α 1 position, angle, index dial is in halted state, realizes the interrupted division motion.When index dial is in halted state, move through the continuous roll of driving-chain with driver plate and contact workpiece, to workpiece teeth groove section hammering 1 time, when roll breaks away from the workpiece entity, just two fingers rotate out intermittently angle α 1 position, drive index dial and begin rotation realization calibration together with workpiece, to process next teeth groove, index dial teeth groove number is identical with the workpiece number of teeth, and the rotation of index dial calibration is coordinated mutually with workpiece like this.Driving shaft drive driver plate High Rotation Speed and roll at a high speed, high energy moves under the continuous hammering, surface of the work produces plastic deformation and forms spline.
The spline cold breakdown breaks into shape can realize the productive temp of lacking and lower material cost, and can obtain uniform crystal structure and higher suface processing quality at inside workpiece, can also obtain high-quality surface roughness, and calibration is faster, intermittent time is shorter, hammering is faster, and the workpiece surface roughness quality is better, and precision is higher.High-speed intermittent dividing provided by the invention mechanism has realized high speed indexing, has not only improved the production efficiency of spline processing, and has obtained more high accuracy and high performance spline part.
Claims (3)
1. high-speed intermittent dividing mechanism, it is characterized in that: it comprises driver plate and index dial, and driver plate is installed on the driving shaft and is positioned at the index dial below, has been arranged symmetrically with two fingers on the driver plate, and the center line of two fingers is positioned at the driver plate edge.
2. high-speed intermittent dividing according to claim 1 mechanism, it is characterized in that: be provided with several teeth groove on the described index dial, index dial teeth groove number is identical with the workpiece number of teeth, and when indexing mechanism was positioned at original position, two fingers were positioned at the centerline of a teeth groove of index dial.
3. high-speed intermittent dividing according to claim 1 mechanism, it is characterized in that: described driver plate is installed on the driving shaft, and driver plate moves through driving-chain and links to each other with roll, and workpiece is fixed on the index dial, and the rolling angle beta of pressure roller contact workpiece satisfies formula 1:
The calculating coincidence formula 2 of division angle alpha 2:
Division angle alpha 2 〉=β namely needs to satisfy formula 3:
In above-mentioned three formula, D is the roll tactical diameter, and d is the roll external diameter, and h is the workpiece tooth depth, and Z is index dial teeth groove number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210500319.1A CN102990472B (en) | 2012-11-17 | 2012-11-17 | High-speed intermittent dividing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210500319.1A CN102990472B (en) | 2012-11-17 | 2012-11-17 | High-speed intermittent dividing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102990472A true CN102990472A (en) | 2013-03-27 |
| CN102990472B CN102990472B (en) | 2016-06-22 |
Family
ID=47919868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210500319.1A Expired - Fee Related CN102990472B (en) | 2012-11-17 | 2012-11-17 | High-speed intermittent dividing mechanism |
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| Country | Link |
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| CN (1) | CN102990472B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722035A (en) * | 2019-11-12 | 2020-01-24 | 北京北方车辆集团有限公司 | Cold frock of beating of external splines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3713315A (en) * | 1969-09-16 | 1973-01-30 | Maag Zahnraeder & Maschinen Ag | Cold rolling profiles on cylindrical workpieces |
| CN2057385U (en) * | 1988-08-08 | 1990-05-23 | 宜宾齿轮厂 | Mould-disk dividing mechanism for honeycomb briquet machine |
| CN101198425A (en) * | 2005-07-15 | 2008-06-11 | 恩斯特格罗布股份公司 | Method for producing internal tooth section and external tooth section on cylinder type hollow member with thin wall |
| CN102218498A (en) * | 2011-04-12 | 2011-10-19 | 上海沪工汽车电器有限公司 | Dividing mechanism |
| CN202985255U (en) * | 2012-11-17 | 2013-06-12 | 山东省青岛生建机械厂 | High speed interval indexing mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1237288A1 (en) * | 1984-05-31 | 1986-06-15 | Завод-втуз при Московском автомобильном заводе им.И.А.Лихачева | Method of cold knurling of splines and machine for its accomplishment |
-
2012
- 2012-11-17 CN CN201210500319.1A patent/CN102990472B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3713315A (en) * | 1969-09-16 | 1973-01-30 | Maag Zahnraeder & Maschinen Ag | Cold rolling profiles on cylindrical workpieces |
| CN2057385U (en) * | 1988-08-08 | 1990-05-23 | 宜宾齿轮厂 | Mould-disk dividing mechanism for honeycomb briquet machine |
| CN101198425A (en) * | 2005-07-15 | 2008-06-11 | 恩斯特格罗布股份公司 | Method for producing internal tooth section and external tooth section on cylinder type hollow member with thin wall |
| CN102218498A (en) * | 2011-04-12 | 2011-10-19 | 上海沪工汽车电器有限公司 | Dividing mechanism |
| CN202985255U (en) * | 2012-11-17 | 2013-06-12 | 山东省青岛生建机械厂 | High speed interval indexing mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722035A (en) * | 2019-11-12 | 2020-01-24 | 北京北方车辆集团有限公司 | Cold frock of beating of external splines |
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| CN102990472B (en) | 2016-06-22 |
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Granted publication date: 20160622 Termination date: 20201117 |