CN211728296U - Multi-shaft rotary table - Google Patents
Multi-shaft rotary table Download PDFInfo
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- CN211728296U CN211728296U CN201922492986.XU CN201922492986U CN211728296U CN 211728296 U CN211728296 U CN 211728296U CN 201922492986 U CN201922492986 U CN 201922492986U CN 211728296 U CN211728296 U CN 211728296U
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Abstract
The utility model discloses a multiaxis revolving stage, including base, rocking arm and ability drive the rocking arm is in the first drive arrangement who rocks around first rotation axis on the base, be equipped with the swing arm on the rocking arm and can drive the swing arm around second rotation axis wobbling second drive arrangement on the rocking arm, be equipped with the workstation in the swing arm and be used for driving the third drive arrangement that the workstation revolved around the third rotation axis, second rotation axis and third rotation axis are parallel to each other or different face each other. The utility model discloses a multiaxis revolving stage, the current two revolving axle revolving stages of contrast, cutter system have good and stable rigidity, therefore the work piece can obtain the stable surface quality of uniformity, has better control characteristic and machining precision, and interference area is little, and the proximity is better, also does benefit to and obtains good complete machine rigidity, in old equipment transformation, uses the utility model discloses need not to change the triaxial stroke, can expand the range of processing of lathe, have extensive application prospect in many trades.
Description
Technical Field
The utility model relates to the technical field of machine tools, concretely relates to multiaxis revolving stage.
Background
At present, a conventional dual-pivot turntable is generally composed of a swing rotation shaft and a pivot shaft, and the two rotation shafts are generally arranged to intersect or offset a certain distance and are not changeable once the design and manufacture are completed, as shown in fig. 1. The existing rotary table is suitable for processing workpieces with the size equivalent to that of the table top of the working table, when smaller workpieces are processed, in order to approach a processing area, a cutter with a larger length needs to be used, or a main shaft extends out of a longer overhang, so that the rigidity of a cutter system is deteriorated, the surface quality of the workpieces is reduced, even the size is out of tolerance, the existing rotary table is limited in the size of the processed parts, and the universality and the flexibility are insufficient.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the proposition of above problem, and research design multiaxis revolving stage. The utility model discloses a technical means as follows:
the utility model provides a multiaxis revolving stage, includes base, rocking arm and can drive the rocking arm is in around the first drive arrangement of first rotation axis rocking on the base, be equipped with the swing arm on the rocking arm and can drive the swing arm around the wobbling second drive arrangement of second rotation axis on the rocking arm, be equipped with the workstation on the swing arm and be used for driving the third drive arrangement of workstation around the gyration of third rotation axis, second rotation axis and third rotation axis are parallel to each other or different face each other.
Further, the first rotation axis and the second rotation axis intersect or are mutually non-coplanar.
Further, the swing angle of the swing arm ranges from 0 ° to 180 °. The swing angle of the swing arm is an included angle between a connecting line of the third rotating axis and the second rotating axis in the plane of the workbench and the first rotating axis.
Further, as the swing angle of the swing arm changes from 0 ° to 180 °, the normal distance of the third rotation axis to the first rotation axis monotonically increases and then monotonically decreases, or monotonically decreases and then monotonically increases.
Further, as the swing angle of the swing arm changes from 0 ° to 90 °, the normal distance of the third rotation axis to the first rotation axis monotonically increases; as the swing angle of the swing arm changes from 90 ° to 180 °, the normal distance of the third rotation axis to the first rotation axis monotonously shortens.
Furthermore, the first driving device and the second driving device both comprise motors and speed reducers, and the third driving device directly drives the power mechanism by a torque motor.
Compared with the prior art, multiaxis revolving stage have following advantage:
(1) the utility model discloses a multiaxis revolving stage, the current double revolving axle revolving stage of contrast has introduced a wobbling swing arm for the third rotation axis is to the normal line distance continuous adjustable of first rotation axis, no matter the work piece size, through adjusting the swing angle, makes work piece machining area concentrate on near first rotation axis as far as possible, and the overhang of the hang length of cutter or main shaft is stable at a very little scope basically, and the cutter system has good and stable rigidity, therefore the work piece can obtain the stable surface quality of uniformity.
(2) The workpiece processing area is concentrated near the first rotating axis as much as possible, so that the processing area is concentrated, the following compensation movement distance of each shaft is greatly reduced, and the control characteristic and the processing precision are better.
(3) The workpiece is basically offset to one side of the first rotating axis, and the other side can save the space of basic components such as a linear shaft and the like, so that the interference area is small, the approach is better, and the good rigidity of the whole machine can be obtained.
(4) In old equipment transformation, use the utility model discloses need not to change the triaxial stroke, can expand the machining range of lathe and improve the machining precision.
(5) The utility model discloses a multiaxis revolving stage is suitable for but not limited to the processing of aviation field impeller, bladed disk, still can be applied to gear, screw, has extensive application prospect in trades such as gas turbine, marine screw, water pump, fan.
Drawings
Fig. 1 is a schematic view of a dual-axis turret of the prior art.
Fig. 2 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 3 is a schematic projection diagram of a working table according to a first embodiment of the present invention.
Fig. 4 is a schematic view of a workpiece processing state according to a first embodiment of the present invention.
Fig. 5 is a schematic sectional view a-a of fig. 4.
Fig. 6 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a third embodiment of the present invention.
In the figure: 1. the device comprises a base, 2, a rocker arm, 3, a first support bearing, 4, a swing arm, 5, a second support bearing, 6, a workbench, 7, a first driving device, 8, a second driving device, 9, a third driving device, 10, a workpiece, 11, a main shaft and a cutter, 1a, a first rotating axis, 2a, a second rotating axis, 3a, a third rotating axis, alpha, a swinging angle, L, a normal distance, L23, and a distance projected by a connecting line of the third rotating axis and the second rotating axis to the plane of the workbench.
Detailed Description
Example one
As shown in fig. 2 to 5, a multi-axis turntable comprises a base 1, a rocker arm 2 and a first driving device 7 capable of driving the rocker arm 2 to swing on the base 1 around a first rotation axis 1a, wherein the rocker arm 2 is arranged on the base 1 through a first supporting bearing 3, the rocker arm 2 is provided with a swing arm 4 and a second driving device 8 capable of driving the swing arm 4 to swing on the rocker arm 2 around a second rotation axis 2a, the swing arm 4 is provided with a working table 6 and a third driving device 9 for driving the working table 6 to rotate around a third rotation axis 3a, and the second rotation axis 2a and the third rotation axis 3a are parallel or are not parallel to each other, so that the two are offset by a certain distance, and are preferably parallel to each other.
The first rotation axis 1a intersects with the second rotation axis 2a or is different from each other, that is, the first rotation axis 1a intersects with the second rotation axis 2a or has a certain distance therebetween, and preferably intersects with each other.
The swing angle α of the swing arm 4 ranges from 0 ° to 180 °. The swing angle α of the swing arm 4 is the angle between the line L23 of the third rotation axis 3a and the second rotation axis 2a in the plane of the worktable 6 and the first rotation axis.
As the swing angle α of the swing arm 4 changes from 0 ° to 180 °, the normal distance L from the third rotation axis 3a of the table 6 to the first rotation axis 1a as the swing arm 4 rotates about the second rotation axis 2a changes in a linear curve as a function of the swing angle α. The normal distance L from the third rotating axis 3a to the first rotating axis 1a is continuously adjustable, no matter the size of the workpiece, the workpiece processing area is concentrated near the first rotating axis as much as possible by adjusting the swing angle, the suspension length of the cutter or the suspension of the main shaft is basically stabilized in a small range, the cutter system has good and stable rigidity, and therefore the workpiece can obtain consistent and stable surface quality. As a preferred embodiment, the normal distance L from the third rotation axis 3a to the first rotation axis 1a monotonically increases and then monotonically decreases, or monotonically decreases and then monotonically increases. As a more preferable embodiment, as the swing angle of the swing arm changes from 0 ° to 90 °, the normal distance L of the third rotation axis 3a to the first rotation axis 1a monotonically increases; as the swing angle of the swing arm changes from 90 ° to 180 °, the normal distance of the third rotation axis to the first rotation axis monotonously shortens. That is, when a line L23 connecting the third rotation axis 3a and the second rotation axis 2a in the plane of the table 6 is in the third quadrant, the normal distance L from the third rotation axis 3a to the first rotation axis 1a monotonously increases or decreases, and correspondingly, in the fourth quadrant, the normal distance L from the third rotation axis 3a to the first rotation axis 1a monotonously decreases or increases.
The first driving device 7 and the second driving device 8 both comprise motors and speed reducers, and the third driving device 9 is a torque motor directly driving a power mechanism. The rocking arm 2 of this embodiment is both ends bearing structure's rocking arm, and the both ends of rocking arm 2 all set up on base 1 through first support bearing 3, and one of them tip department is equipped with first drive arrangement 7, and drive rocking arm 2 rocks.
In the embodiment, because the processing area is concentrated, the following compensation movement distance of each shaft is greatly reduced, and the control characteristic is better. The workpiece is basically offset to one side of the first rotating axis, and the other side can save the space of basic components such as a linear shaft and the like, so that the interference area is small, the approach is better, and the good rigidity of the whole machine can be obtained. Simultaneously, in old equipment transformation, use the utility model discloses need not to change the triaxial stroke, can expand the range of processing of lathe. The embodiment is not limited to the processing of impellers and blade discs in the aviation field, can also be applied to gears and propellers, and has wide application prospects in the industries of gas turbines, marine propellers, water pumps, fans and the like.
Example two
As shown in fig. 6, the present embodiment is different from the first embodiment in that the rocker arm 2 is provided with corresponding first driving devices 7 at both ends, and the rocker arm is driven to move bilaterally. The other structures of the present embodiment are the same as those of the first embodiment.
EXAMPLE III
As shown in fig. 7, the present embodiment is different from the first embodiment in that one end of the swing arm 2 is disposed on the base 1 through the first support bearing 3, and the first driving device 7 is disposed at the end of the swing arm 2. The other structures of the present embodiment are the same as those of the first embodiment.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (6)
1. A multi-axis turret comprising a base, a rocker arm and first drive means capable of driving said rocker arm to rock on said base about a first axis of rotation, characterized in that: the swing arm is provided with a swing arm and a second driving device capable of driving the swing arm to swing around a second rotation axis on the swing arm, the swing arm is provided with a workbench and a third driving device used for driving the workbench to rotate around a third rotation axis, and the second rotation axis and the third rotation axis are parallel to each other or are different from each other.
2. The multi-axis turret of claim 1, wherein: the first rotation axis and the second rotation axis intersect or are mutually different.
3. The multi-axis turret of claim 2, wherein: the swing angle range of the swing arm is 0-180 degrees.
4. The multi-axis turret of claim 3, wherein: as the swing angle of the swing arm changes from 0 DEG to 180 DEG, the normal distance from the third rotation axis to the first rotation axis monotonically increases and then monotonically decreases, or monotonically decreases and then monotonically increases.
5. The multi-axis turret of claim 4, wherein: the normal distance from the third rotation axis to the first rotation axis monotonically increases as the swing angle of the swing arm changes from 0 ° to 90 °; as the swing angle of the swing arm changes from 90 ° to 180 °, the normal distance of the third rotation axis to the first rotation axis monotonously shortens.
6. Multiaxis turntable as claimed in any one of claims 1 to 5, characterized in that: the first driving device and the second driving device both comprise motors and speed reducers, and the third driving device directly drives the power mechanism by a torque motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922492986.XU CN211728296U (en) | 2019-12-31 | 2019-12-31 | Multi-shaft rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922492986.XU CN211728296U (en) | 2019-12-31 | 2019-12-31 | Multi-shaft rotary table |
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| Publication Number | Publication Date |
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| CN211728296U true CN211728296U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922492986.XU Active CN211728296U (en) | 2019-12-31 | 2019-12-31 | Multi-shaft rotary table |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135758A1 (en) * | 2019-12-31 | 2021-07-08 | 科德数控股份有限公司 | Multi-axis rotary table |
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2019
- 2019-12-31 CN CN201922492986.XU patent/CN211728296U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135758A1 (en) * | 2019-12-31 | 2021-07-08 | 科德数控股份有限公司 | Multi-axis rotary table |
| EP4086033A4 (en) * | 2019-12-31 | 2024-01-31 | Kede Numerical Control Co., Ltd. | Multi-axis rotary table |
| US11945065B2 (en) | 2019-12-31 | 2024-04-02 | Kede Numerical Control Co., Ltd. | Multi-axis turntable |
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