CN203765020U - Rotary clamping device - Google Patents
Rotary clamping device Download PDFInfo
- Publication number
- CN203765020U CN203765020U CN201420190287.4U CN201420190287U CN203765020U CN 203765020 U CN203765020 U CN 203765020U CN 201420190287 U CN201420190287 U CN 201420190287U CN 203765020 U CN203765020 U CN 203765020U
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- CN
- China
- Prior art keywords
- oil cylinder
- splined shaft
- clamping device
- cylinder piston
- piston
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a rotary clamping device. The rotary clamping device comprises an elastic chuck, a spline shaft, an oil cylinder piston and a rotary motor, wherein the rotary motor drives the spline shaft to rotate, the oil cylinder piston is arranged in an oil cylinder and can be driven by hydraulic oil to do linear motion, and the spline shaft is mounted in the oil cylinder piston by virtue of a piston bearing, can rotate relative to the oil cylinder piston and cannot move in a straight line relatively; the elastic chuck can be driven by the spline shaft to simultaneously do rotation and linear motion. According to the rotary clamping device, the rotary motor drives the spline shaft to rotate; the piston bearing and the spline shaft are located in the oil cylinder piston, and the spline shaft rotates under the bearing of the piston bearing; the oil cylinder piston can do reciprocating linear motion in the oil cylinder under the driving of oil pressure but does not rotate; the spline shaft rotates relative to the oil cylinder piston and is driven to do the same linear motion when the oil cylinder piston does linear motion, so that the combination of linear motion and rotation of the elastic chuck is realized.
Description
Technical field
The utility model relates to Machining Technology field, relates in particular to a kind of revolution clamping device.
Background technology
The slim workpiece of circle is added to man-hour (for example cutter blade class), in the process of end face, tooth portion and angle, need to carry out the processing without dead angle for circumferencial direction, also want stable holding simultaneously.According to " technological datum is unified " processing principle, must the endoporus of workpiece and end face be located and be clamped with spring chuck.But, realize stable holding and 360 ° without dead angle, difficulty is very large.For ease of workpiece, rapidly and efficiently locate the workpiece continuous rotary or the indexing gap that clamp and don't affect in the course of work and turn round, be necessary to develop revolution clamping device.
Utility model content
The purpose of this utility model is to propose a kind of revolution clamping device, and it can be rotated in clamping work pieces, has effectively solved the stable holding problem of the slim workpiece of circle in process.
A revolution clamping device, comprises collet, splined shaft, oil cylinder piston and turning motor; Described turning motor drives described splined shaft to rotate, described oil cylinder piston is arranged in oil cylinder and is driven by hydraulic oil can traveling priority, described splined shaft is installed on the inside of described oil cylinder piston with piston bearing, described splined shaft can be rotated with respect to described oil cylinder piston, but traveling priority relatively; Described collet is driven and rotates and traveling priority simultaneously by described splined shaft.
The top of described splined shaft is provided with panoramic table, and described panoramic table is installed on fixed structure with bearing, and the middle part of described panoramic table is provided with the cylindrical deep gouge that holds described collet.
Described collet and panoramic table are fixed on splined shaft with stretching screw; The nut of stretching screw has tapering, and the position coordinating with described stretching screw of described collet is also provided with corresponding tapering; Stretching screw expands outwardly the tapering position of collet and clamping work pieces while moving downward with splined shaft.
Described oil cylinder piston under the driving of oil pressure in oil cylinder upper press cover, cylinder body and oil cylinder lower cover traveling priority.
Between described oil cylinder piston and described oil cylinder upper press cover and oil cylinder lower cover, be provided with seal.
Described turning motor is installed on turning motor seat, and the output shaft of described turning motor is provided with motor gear, and the bottom of described splined shaft is provided with gear wheel, described motor gear and the engagement of described gear wheel.
The thickness of described motor gear is greater than the traveling priority distance of described gear wheel under the drive of described splined shaft.
Preferably, be provided with locking nut described gear wheel is lock onto to described spline the tip of the axis.
The position of described splined shaft between described panoramic table and oil cylinder piston is provided with waterproof cover.
Preferably, be provided with locking nut described piston bearing is locked to described oil cylinder piston inside.
In the utility model, turning motor drives splined shaft to rotate; Piston bearing and splined shaft are positioned at the inside of oil cylinder piston, and splined shaft rotates under the carrying of piston bearing; Oil cylinder piston can be done reciprocal traveling priority under the driving of oil pressure in oil cylinder, but oil cylinder piston itself does not rotate; Splined shaft rotates with respect to oil cylinder piston, and is driven and carries out same traveling priority when oil cylinder piston traveling priority.Therefore, the traveling priority of collet and the combination of rotation have been realized.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present utility model.
Reference numeral:
1-collet; 2-panoramic table; 3-stretching screw; 4-outer race locking nut; 5-bearing; 6-bearing inner ring locking nut; 7-waterproof cover; 8-oil cylinder upper press cover; 9-oil cylinder gland lock-screw; 10-cylinder body; 11-seal; 12-piston bearing; 13-bearing holder (housing, cover); 14-oil cylinder lower cover; 15-turning motor; 16-turning motor seat; 17-motor gear; 18-lock sleeve; 19-gear wheel; 20-locking nut; 21-Bearing housing; 22-locking nut; 23-oil cylinder fixing body; 24-splined shaft; 25-oil cylinder piston.
The specific embodiment
Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate the technical solution of the utility model.
With reference to Fig. 1, a kind of revolution clamping device of the present embodiment, comprises collet 1, splined shaft 24, oil cylinder piston 25 and turning motor 15; Described turning motor 15 drives described splined shaft 24 to rotate, described oil cylinder piston 25 is arranged in oil cylinder and is driven by hydraulic oil can traveling priority, described splined shaft 24 use piston bearings 12 are installed on the inside of described oil cylinder piston 25, described splined shaft 24 can be rotated with respect to described oil cylinder piston 25, but traveling priority relatively; Described collet 1 is driven and rotates and traveling priority simultaneously by described splined shaft 24.
Described collet 1 for the clamping workpiece that is positioning datum by inner hole of workpiece and end face at workbench.Turning motor 15 drives splined shaft 24 to rotate; Piston bearing 12 and splined shaft 24 are positioned at the inside of oil cylinder piston 25, and splined shaft 24 rotates under the carrying of piston bearing 12; Oil cylinder piston 25 can be done reciprocal traveling priority under the driving of oil pressure in oil cylinder, but oil cylinder piston 25 itself does not rotate; Splined shaft 24 rotates with respect to oil cylinder piston 25, and is driven and carries out same traveling priority when oil cylinder piston 25 traveling priority.Therefore, the traveling priority of collet 1 and the combination of rotation have been realized.
The top of described splined shaft 24 is provided with panoramic table 2, and described panoramic table 2 use bearings 5 are installed on fixed structure, and the middle part of described panoramic table 2 is provided with the cylindrical deep gouge that holds described collet 1.
Described collet 1 and panoramic table 2 use stretching screws 3 are fixed on splined shaft 24; The nut of stretching screw 3 has tapering, and the position coordinating with described stretching screw 3 of described collet 1 is also provided with corresponding tapering; Stretching screw 3 expands outwardly the tapering position of collet 1 and clamping work pieces while moving downward with splined shaft 24.
Described oil cylinder piston 25 under the driving of oil pressure at oil cylinder upper press cover 8, cylinder body 10 and the interior traveling priority of oil cylinder lower cover 14.Cylinder structure is stable, realizes steady working condition, and guarantees that oil cylinder do not reveal.
Between described oil cylinder piston 25 and described oil cylinder upper press cover 8 and oil cylinder lower cover 14, be provided with seal 11.Seal 11 can not revealed for guaranteeing hydraulic oil.
Described turning motor 15 is installed on turning motor seat 16, and the output shaft of described turning motor 15 is provided with motor gear 17, and the bottom of described splined shaft 24 is provided with gear wheel 19, described motor gear 17 and described gear wheel 19 engagements.It is reliable and stable that this structure guarantees that turning motor 15 drives.
The thickness of described motor gear 17 is greater than the traveling priority distance of described gear wheel 19 under the drive of described splined shaft 24.What guarantee splined shaft 24 no matter is that turning motor 15 can both drive splined shaft 24 to rotate when top or the position of lowermost end.
The present embodiment is also provided with locking nut 22 and described gear wheel 19 is lock onto to the end of described splined shaft 24.Guarantee the stable installation of gear wheel 19.The position of described splined shaft 24 between described panoramic table 2 and oil cylinder piston 25 is provided with waterproof cover 7.
Waterproof cover 7 prevents that at 2 pairs of workpiece of panoramic table, adding other liquid such as the water in man-hour or other cooling fluids flows into oil cylinders.
The present embodiment is also provided with locking nut 20 described piston bearing 12 is locked to described oil cylinder piston 25 inside.Oil cylinder piston 25 moves back and forth under the driving of oil pressure in oil cylinder upper press cover 8, cylinder body 10 and oil cylinder lower cover 14
Collet 1, panoramic table 2, stretching screw 3, outer race locking nut 4, bearing 5 and bearing inner ring locking nut 6 form chuck components, and effect will be take clamping workpiece that inner hole of workpiece and end face be positioning datum on workbench.Wherein the bore design of panoramic table 2 is spline pair structure, is convenient to instant transmitting torque, can make splined shaft 24 move up and down.Stretching screw 3 threaded engagement are installed on one end of splined shaft 24.The tapering position of stretching screw 3 coordinates with the tapering position of collet 1; Stretching screw 3 expands outwardly the tapering position of collet 1 and clamping work pieces while moving downward with splined shaft 24.
Oil cylinder upper press cover 8, cylinder body 10, seal 11, oil cylinder lower cover 14 and oil cylinder piston 25 etc. form pulling assembly, and the direction transformation by hydraulic oil provides the power moving up and down to oil cylinder piston 25.The effect of waterproof cover 7 prevents that the liquid being entered by spline pair is immersed in the bearing portion in drawing cylinder assembly; On revolution clamping cylinder fixing body 23, be designed with osculum.
Piston bearing 12, bearing holder (housing, cover) 13, locking nut 20, Bearing housing 21, splined shaft 24 etc. form gyro black assembly, and splined shaft 24 is furthered or releasing orientation can freely turn round at drawing cylinder assembly.
Turning motor 15, turning motor seat 16, motor gear 17, lock tube 18, gear wheel 19, locking nut 22 etc. form driven unit, and the rotary power that turning motor 15 is produced passes to the splined shaft 24 in drawing cylinder gyro black assembly; Turning motor seat 16 is installed on revolution clamping cylinder fixing body 23.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present utility model, within these modes all will fall into protection domain of the present utility model.
Claims (10)
1. a revolution clamping device, is characterized in that: comprise collet, splined shaft, oil cylinder piston and turning motor; Described turning motor drives described splined shaft to rotate, described oil cylinder piston is arranged in oil cylinder and is driven by hydraulic oil can traveling priority, described splined shaft is installed on the inside of described oil cylinder piston with piston bearing, described splined shaft can be rotated with respect to described oil cylinder piston, but traveling priority relatively; Described collet is driven and rotates and traveling priority simultaneously by described splined shaft.
2. revolution clamping device according to claim 1, is characterized in that: the top of described splined shaft is provided with panoramic table, and described panoramic table is installed on fixed structure with bearing, and the middle part of described panoramic table is provided with the cylindrical deep gouge that holds described collet.
3. revolution clamping device according to claim 2, is characterized in that: described collet and panoramic table are fixed on splined shaft with stretching screw; The nut of stretching screw has tapering, and the position coordinating with described stretching screw of described collet is also provided with corresponding tapering; Stretching screw expands outwardly the tapering position of collet and clamping work pieces while moving downward with splined shaft.
4. revolution clamping device according to claim 1, is characterized in that: described oil cylinder piston under the driving of oil pressure in oil cylinder upper press cover, cylinder body and oil cylinder lower cover traveling priority.
5. revolution clamping device according to claim 4, is characterized in that: between described oil cylinder piston and described oil cylinder upper press cover and oil cylinder lower cover, be provided with seal.
6. revolution clamping device according to claim 1, it is characterized in that: described turning motor is installed on turning motor seat, the output shaft of described turning motor is provided with motor gear, and the bottom of described splined shaft is provided with gear wheel, described motor gear and the engagement of described gear wheel.
7. revolution clamping device according to claim 6, is characterized in that: the thickness of described motor gear is greater than the traveling priority distance of described gear wheel under the drive of described splined shaft.
8. revolution clamping device according to claim 6, is characterized in that: be provided with locking nut described gear wheel is lock onto to described spline the tip of the axis.
9. revolution clamping device according to claim 1, is characterized in that: the position of described splined shaft between described panoramic table and oil cylinder piston is provided with waterproof cover.
10. revolution clamping device according to claim 1, is characterized in that: be provided with locking nut described piston bearing is locked to described oil cylinder piston inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420190287.4U CN203765020U (en) | 2014-04-18 | 2014-04-18 | Rotary clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420190287.4U CN203765020U (en) | 2014-04-18 | 2014-04-18 | Rotary clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203765020U true CN203765020U (en) | 2014-08-13 |
Family
ID=51282267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420190287.4U Withdrawn - After Issue CN203765020U (en) | 2014-04-18 | 2014-04-18 | Rotary clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203765020U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949685A (en) * | 2014-04-18 | 2014-07-30 | 河源富马硬质合金股份有限公司 | Rotating clamping device |
| CN105562839A (en) * | 2016-02-29 | 2016-05-11 | 西安贝吉姆机床股份有限公司 | Rotating workbench for worm grinding wheel gear grinding machine |
| CN109248944A (en) * | 2018-11-27 | 2019-01-22 | 安徽德系重工科技有限公司 | A kind of CNC tube bending machine flexible clamping device |
-
2014
- 2014-04-18 CN CN201420190287.4U patent/CN203765020U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949685A (en) * | 2014-04-18 | 2014-07-30 | 河源富马硬质合金股份有限公司 | Rotating clamping device |
| CN105562839A (en) * | 2016-02-29 | 2016-05-11 | 西安贝吉姆机床股份有限公司 | Rotating workbench for worm grinding wheel gear grinding machine |
| CN109248944A (en) * | 2018-11-27 | 2019-01-22 | 安徽德系重工科技有限公司 | A kind of CNC tube bending machine flexible clamping device |
| CN109248944B (en) * | 2018-11-27 | 2023-08-11 | 安徽德系重工科技有限公司 | Elastic clamping device of numerical control pipe bending machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20160203 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |