CN211277390U - Multi-station rotary worktable with cambered surface indexing cam primary positioning function - Google Patents
Multi-station rotary worktable with cambered surface indexing cam primary positioning function Download PDFInfo
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- CN211277390U CN211277390U CN201921401552.8U CN201921401552U CN211277390U CN 211277390 U CN211277390 U CN 211277390U CN 201921401552 U CN201921401552 U CN 201921401552U CN 211277390 U CN211277390 U CN 211277390U
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- fluted disc
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Abstract
The utility model discloses a multistation rotary worktable with cambered surface dividing cam is just fixed a position, including bearing platform, box, pivot, driven graduated disk, cambered surface cam, travel switch and driving motor, the pivot is installed on the box, upper and lower both ends respectively with bearing platform and driven graduated disk rigid coupling, be equipped with bearing assembly along the circumference on the driven graduated disk, cambered surface cam and bearing assembly meshing, cambered surface cam are installed on cambered surface cam bearing, and travel switch installs on the box, be used for the detection the rotation volume of pivot is for driving motor feedback control signal. The utility model adopts the cambered surface cam for primary positioning and precise secondary positioning through the hydraulic three-fluted disc; the cam curve has excellent rigid impact resistance and flexible impact resistance, ensures the rotation stability of the turntable to the maximum extent, improves the reliability of rotary indexing motion, and is particularly suitable for a multi-station rotary worktable.
Description
Technical Field
The utility model relates to a graduation swivel work head technical field, especially a multistation swivel work head with cambered surface graduation cam is just fixed a position for the lathe.
Background
The existing three-fluted-disc positioning machine tool rotary table is mostly driven by a servo motor through a worm gear with complex pitch, but the worm gear is easy to wear, the transmission efficiency is not high, a transmission gap exists, the back gap needs to be adjusted after the machine tool rotary table is used for a period of time, and the worm gear transmission always has the back gap requirement. For example, chinese patent ZL 201020546813.8 shows a four-station rotary table that realizes initial positioning by cylindrical cam drive, and performs precise positioning and locking by a hydraulic fluted disc, but the cylindrical cam mechanism has a large volume, a large pressure angle, and low transmission efficiency. The continuous cambered surface cam transmission has the obvious advantages of no meshing clearance, high meshing efficiency and large bearing capacity of a transmission mode of simultaneously meshing a plurality of rollers.
Disclosure of Invention
The utility model is directed to the above problem, a multistation rotary worktable with cambered surface graduation cam is just fixed a position is provided. The technical scheme of the utility model is that:
the utility model provides a multistation rotary worktable with cambered surface graduated cam primary positioning, includes bearing platform, box, pivot, driven graduated disk, cambered surface cam, travel switch and driving motor, the pivot is installed on the box, its upper and lower both ends respectively with bearing platform and driven graduated disk rigid coupling, be equipped with bearing assembly along the circumference on the driven graduated disk, the cambered surface cam with bearing assembly meshes, the cambered surface cam passes through the bearing and installs on cambered surface cam bearing frame and by driving motor drive, travel switch installs on the box, be used for detecting the turning amount of pivot gives driving motor feedback control signal.
As the utility model discloses preferred technical scheme, set up a plurality of travel switch on the driven graduated disk equidistant and trigger the hole, every travel switch triggers the hole and triggers travel switch who installs on the box when rotating to corresponding the position.
Furthermore, the number of the travel switch triggering holes is more than two, and the travel switch triggering holes correspond to the number of the stations of the rotary working table.
Furthermore, the device also comprises a secondary accurate positioning mechanism, wherein the secondary accurate positioning mechanism comprises a movable fluted disc, a fixed fluted disc, a positioning fluted disc and a driving device, and the opposite surfaces of the positioning fluted disc, the movable fluted disc and the fixed fluted disc are meshing positioning surfaces; the fixed fluted disc is fixedly connected with the box body, the rotating shaft is fixedly connected with the driven dividing disc, the bearing table and the movable fluted disc at the same time, and the positioning fluted disc is movably arranged on the rotating shaft by the driving device.
Further, the driving device is a hydraulic driving device or a motor driving device.
Furthermore, the hydraulic driving device comprises an oil cylinder movable body fixedly connected with the positioning fluted disc, and the oil cylinder movable body drives the positioning fluted disc to slide on the rotating shaft.
Further, the positioning toothed plate is located below the moving and fixed toothed plates.
The utility model has the advantages that:
the utility model adopts the cambered surface cam for primary positioning and precise secondary positioning through the hydraulic three-fluted disc; the cam curve has excellent rigid impact resistance and flexible impact resistance, so that the rotation stability of the rotary table is ensured to the maximum extent, and the reliability of rotary indexing motion is improved; the utility model discloses a structure is particularly suitable for multistation rotary worktable.
Drawings
Fig. 1 is a schematic view of the overall structure of an embodiment of the present invention;
FIG. 2 is an exploded view of the embodiment of the present invention;
fig. 3 is a schematic diagram of the engagement of the arc cam according to the embodiment of the present invention.
Reference numerals: the device comprises a bearing platform 1, a turntable bearing 2, a movable fluted disc 3, a fixed fluted disc 4, a positioning fluted disc 5, an oil cylinder movable body 6, a cambered cam 7, a cambered cam bearing seat 8, a travel switch 9, a needle roller bearing assembly 10, a driven dividing disc 11, a rotating shaft 12 and a box body 13.
Detailed Description
Example (b):
the embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely illustrative of some, but not all embodiments of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The utility model provides a multistation swivel work head with cambered surface graduated cam is just fixed a position, includes bearing platform 1, box 13, pivot 12, driven graduated disk 11, cambered surface cam 7, travel switch 9 and driving motor, pivot 12 is installed on the box 13, upper and lower both ends respectively with bearing platform 1 and 11 rigid couplings of driven graduated disk, be equipped with bearing assembly 10 along the circumference on the driven graduated disk, cambered surface cam 7 with bearing assembly 10 meshes, cambered surface cam 7 install on cambered surface cam bearing frame 8 and by driving motor drive rotates, travel switch 9 is installed on the box 13, be used for detecting the turned quantity of pivot 12 gives driving motor feedback control signal.
In this embodiment, power is input to the rotating shaft of the arc cam 7 through the driving motor and the gear, the arc cam 7 is meshed with the needle bearing assembly 10 to drive the driven index plate 11 to perform periodic intermittent indexing motion, and after the rotating shaft 12 rotates to the next station to complete the primary positioning of the rotary table, the trigger travel switch 9 feeds back an intermittent signal to the driving motor, so that the driving motor brakes, and the rotation and the stop positioning of one station are realized.
As a further explanation, the present embodiment includes a secondary precise positioning mechanism, which is shown in the attached drawings and includes a movable toothed disc 3, a fixed toothed disc 4, a positioning toothed disc 5 and a hydraulic driving device, wherein the facing surfaces of the positioning toothed disc 5, the movable toothed disc 3 and the fixed toothed disc 4 are meshing positioning surfaces; the fixed fluted disc 4 is fixedly connected with the box body 13, the rotating shaft 12 is fixedly connected with the driven dividing disc 11, the bearing platform 1 and the movable fluted disc 3 at the same time, and the positioning fluted disc 5 is fixedly connected with the oil cylinder movable body 6 of the hydraulic driving device. After the travel switch 9 sends out an intermittent signal and carries out a certain time delay, the hydraulic electromagnetic valve of the hydraulic driving device acts to drive the movable body 6 of the oil cylinder to ascend, drive the positioning fluted disc 5 to ascend, and simultaneously mesh with the fixed fluted disc 4 and the movable fluted disc 3, so that the secondary precise positioning of the rotary worktable is realized. The bearing table 1 is arranged on the box body 13 through the turntable bearing 2 to form a rotary pair. It can be understood that the hydraulic drive is only one drive mode of the positioning fluted disc 5, and the positioning fluted disc 5 can also adopt a conventional motor drive mode, so that the above actions and functions can be realized.
Referring to the attached drawings, in this embodiment, a plurality of travel switch trigger holes are equidistantly formed in the driven index plate 11, and in this embodiment, a four-station example is taken as an example, that is, four travel switch trigger holes are equidistantly formed in the driven index plate 11, and when the driven index plate 11 rotates by 90 ° along with the rotating shaft 12, the travel switches mounted on the box body 13 are triggered through the corresponding travel switch trigger holes, so that a feedback control stop signal is sent, the driving of the driving motor is stopped, that is, the primary positioning of the workbench is completed, and further, the secondary precise positioning is performed. It can be understood that this embodiment is a four-station embodiment, but does not hinder other station embodiments, and the structure of the present invention is particularly suitable for a multi-station rotary table.
The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for variations, and in short, all variations within the scope of the independent claims of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a multistation rotary worktable with cambered surface graduation cam is just fixed a position which characterized in that: including bearing platform (1), box (13), pivot (12), driven graduated disk (11), cambered surface cam (7), travel switch (9) and driving motor, pivot (12) are installed on box (13), upper and lower both ends respectively with bearing platform (1) and driven graduated disk (11) rigid coupling, be equipped with bearing subassembly (10) along the circumference on the driven graduated disk, cambered surface cam (7) with bearing subassembly (10) meshing, cambered surface cam (7) are installed on cambered surface cam bearing frame (8) and are driven by driving motor, travel switch (9) are installed on box (13), are used for detecting the rotation volume of pivot (12) and give driving motor feedback control signal.
2. The multi-station rotary table with cambered surface indexing cam primary positioning of claim 1, which is characterized in that: a plurality of travel switch triggering holes are formed in the driven indexing disc (11) at equal intervals, and each travel switch triggering hole triggers a travel switch installed on the box body (13) when rotating to a corresponding position.
3. The multi-station rotary table with cambered surface indexing cam primary positioning of claim 2, wherein: the number of the travel switch trigger holes is more than two and corresponds to the number of the stations of the rotary working table.
4. A multi-station rotary table with cambered indexing cam primary positioning according to claim 2 or 3, characterized in that: the device is characterized by further comprising a secondary accurate positioning mechanism, wherein the secondary accurate positioning mechanism comprises a movable fluted disc (3), a fixed fluted disc (4), a positioning fluted disc (5) and a driving device, and opposite surfaces of the positioning fluted disc (5), the movable fluted disc (3) and the fixed fluted disc (4) are meshing positioning surfaces; the fixed fluted disc (4) is fixedly connected with the box body (13), the rotating shaft (12) is fixedly connected with the driven dividing disc (11), the bearing platform (1) and the movable fluted disc (3), and the positioning fluted disc (5) is movably arranged on the rotating shaft (12) by the driving of the driving device.
5. The multi-station rotary table with cambered surface indexing cam primary positioning of claim 4, wherein: the driving device is a hydraulic driving device or a motor driving device.
6. The multi-station rotary table with cambered surface indexing cam primary positioning of claim 5, wherein: the hydraulic driving device comprises an oil cylinder movable body (6) fixedly connected with the positioning fluted disc (5), and the oil cylinder movable body (6) drives the positioning fluted disc (5) to slide on the rotating shaft (12).
7. The multi-station rotary table with cambered surface indexing cam primary positioning of claim 4, wherein: the positioning fluted disc (5) is positioned below the movable fluted disc (3) and the fixed fluted disc (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921401552.8U CN211277390U (en) | 2019-08-27 | 2019-08-27 | Multi-station rotary worktable with cambered surface indexing cam primary positioning function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921401552.8U CN211277390U (en) | 2019-08-27 | 2019-08-27 | Multi-station rotary worktable with cambered surface indexing cam primary positioning function |
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| CN211277390U true CN211277390U (en) | 2020-08-18 |
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| CN201921401552.8U Active CN211277390U (en) | 2019-08-27 | 2019-08-27 | Multi-station rotary worktable with cambered surface indexing cam primary positioning function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044319A (en) * | 2021-11-22 | 2022-02-15 | 江西圣卓科技有限公司 | Center dead axle type microminiature dividing plate and control method thereof |
| CN114473535A (en) * | 2022-03-31 | 2022-05-13 | 苏州古田自动化科技有限公司 | Horizontal integral type cam roller numerical control revolving stage |
| CN116984907A (en) * | 2023-09-27 | 2023-11-03 | 成都中良川工科技有限公司 | Numerical control rotary table |
-
2019
- 2019-08-27 CN CN201921401552.8U patent/CN211277390U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044319A (en) * | 2021-11-22 | 2022-02-15 | 江西圣卓科技有限公司 | Center dead axle type microminiature dividing plate and control method thereof |
| CN114044319B (en) * | 2021-11-22 | 2022-08-02 | 江西圣卓科技有限公司 | Center dead axle type microminiature dividing plate and control method thereof |
| CN114473535A (en) * | 2022-03-31 | 2022-05-13 | 苏州古田自动化科技有限公司 | Horizontal integral type cam roller numerical control revolving stage |
| CN116984907A (en) * | 2023-09-27 | 2023-11-03 | 成都中良川工科技有限公司 | Numerical control rotary table |
| CN116984907B (en) * | 2023-09-27 | 2023-12-22 | 成都中良川工科技有限公司 | Numerical control rotary table |
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