CN202251232U - Straight-pull type air cylinder - Google Patents
Straight-pull type air cylinder Download PDFInfo
- Publication number
- CN202251232U CN202251232U CN2011203423781U CN201120342378U CN202251232U CN 202251232 U CN202251232 U CN 202251232U CN 2011203423781 U CN2011203423781 U CN 2011203423781U CN 201120342378 U CN201120342378 U CN 201120342378U CN 202251232 U CN202251232 U CN 202251232U
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- CN
- China
- Prior art keywords
- piston rod
- cylinder body
- air cylinder
- bearing
- straight
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a straight-pull type air cylinder with small rotary load and centrifugal force and a difficultly-damaged spindle bearing, which solves the problem of large load of the spindle bearing caused by rotation of a cylinder body of the air cylinder. The straight-pull type air cylinder comprises the cylinder body, an end cover, a receiving disc and a piston rod. The piston rod is slidably arranged in the cylinder body along the axial direction, the end portion of the cylinder body is connected with the end cover, and the receiving disc is fixed on the end cover. The straight-pull type air cylinder further comprises a position shaft penetrating through the piston rod and connected with the piston rod through a rotary pair. The end portion of the position shaft is provided with a thread for being connected with a pull rod in spindle parts, and a connecting device for being connected with a spindle through the rotary pair is arranged in the receiving disc.
Description
Technical field
The utility model relates on the lathe and power chuck or the matching used power source of anchor clamps------cylinder.
Background technique
With power chuck or the matching used cylinder of anchor clamps be the mechanism of chuck or anchor clamps operation, be connected the action of unclamping and straining through the realization that seesaws of piston rod on its piston rod with pull bar with main shaft with screw thread.At present; The cylinder major part is the rotary cylinder of cylinder body rotation, and cylinder body and piston rod turn round together, and is bigger because of turning round weight; To having relatively high expectations of each union piece; If link is beated bad with respect to the center of main shaft or be bigger with the main shaft matching gap, cylinder block gyration center and alignment of shafts off-centre exceed allowed band, very easily cause main shaft bearing to damage under the high speed rotating.
Summary of the invention
What the utility model solved is the big problem of main shaft bearing load that the cylinder block revolution causes, and provides a kind of revolution load little, and centrifugal force is little, the non-damageable directly pulling type cylinder of main shaft bearing.
The directly pulling type cylinder of the utility model comprises cylinder body, end cap, connects dish, piston rod, and piston rod is slidingly arranged in the cylinder body vertically; The end of cylinder body connects end cap; Fixedly connect dish on the end cap, it also comprises the positioning shaft that passes piston rod, and positioning shaft is connected with revolute pair with piston rod; The end of positioning shaft is provided with and is used for the screw thread that the pull bar with spindle unit joins; Connect to be provided with in the dish and be used for the connection set that links to each other with revolute pair with main shaft.
For above-mentioned directly pulling type cylinder, positioning shaft constitutes revolute pair with piston rod through bearing and is connected.
For above-mentioned directly pulling type cylinder, connection set is a bearing.
The beneficial effect of the utility model: because positioning shaft is connected, connects dish with piston rod with revolute pair and links to each other with revolute pair with main shaft; So main shaft and connecting rod are when rotating, cylinder body is not with main axis rotation, and just main shaft and pull bar rotate separately; Therefore the revolution load is little; Centrifugal force is little, thereby reduces main shaft vibrations at the volley, protection main shaft bearing.
Description of drawings
Fig. 1 is vertical pulling air cylinder structure figure.
Fig. 2 is vertical pulling cylinder and main shaft connection diagram.
Embodiment
Referring to Q135 directly pulling type cylinder shown in Figure 1 is to use on the lathe and the matching used power source of power chuck, also can make the power source of other anchor clamps, comprises cylinder body 1, end cap 2, connects dish 3, bearing 4, bearing (ball) cover 5, piston rod 6, bearing 7, positioning shaft 8 etc.Piston rod 6 is slidingly arranged in the cylinder body 1 vertically, and the end of cylinder body connects end cap 2, and the right side of end cap fixedly connects dish 3.Have gas-entered passageway 9, the discharge route 10 that communicates with the piston rod both sides on cylinder body 1 and the end cap 2.Positioning shaft 8 passes piston rod 6, and positioning shaft constitutes revolute pair with piston rod through bearing 7 and is connected.Connecing has bearing 4 in the dish, and positions through being fixed on the outer ring that connects the 5 pairs of bearings 4 of bearing (ball) cover on the dish 3.Referring to Fig. 2, the right part of positioning shaft and pull bar 11 left ends are to be threaded.The left end of main shaft 12 passes bearing 4, and fixes with two locking nuts 13 and the inner ring of bearing 4.Q135 directly pulling type cylinder is whole to pass through the fixing of 4 bearings with main shaft, and the location of two locking nuts connects two bodies the running that realizes main shaft.
Piston rod has connected to form the mechanism with chuck or anchor clamps operation through positioning shaft with screw thread and main shaft and pull bar, realizes unclamping the action with tension through seesawing of piston rod.Main shaft with connect dish 3 and be connected the running that realizes main shaft through bearing 4; On pull bar and the positioning shaft 8 be threaded together through with positioning shaft on bearing be connected the running that realizes pull bar, cylinder body 1 is fixing not to be changeed, and rotates through bearing 4,7; Realize the rotation of main shaft and pull bar; The revolution load is little, and centrifugal force is little, has reduced the load of cylinder body rotation to main shaft bearing.Cylinder body 1, end cap 2, connect dish 3, bearing (ball) cover 5, piston rod 6, positioning shaft 8 etc. and adopt aluminum alloy material, in light weight, volume is little, starting is fast.
Claims (3)
1. the directly pulling type cylinder comprises cylinder body, end cap, connects dish, piston rod, and piston rod is slidingly arranged in the cylinder body vertically; The end of cylinder body connects end cap; Fixedly connect dish on the end cap, it is characterized in that: further comprising the positioning shaft that passes piston rod, positioning shaft is connected with revolute pair with piston rod; The end of positioning shaft is provided with and is used for the screw thread that the pull bar with spindle unit joins; Connect to be provided with in the dish and be used for the connection set that links to each other with revolute pair with main shaft.
2. directly pulling type cylinder according to claim 1 is characterized in that: positioning shaft constitutes revolute pair with piston rod through bearing and is connected.
3. directly pulling type cylinder according to claim 1 is characterized in that: connection set is a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203423781U CN202251232U (en) | 2011-09-14 | 2011-09-14 | Straight-pull type air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203423781U CN202251232U (en) | 2011-09-14 | 2011-09-14 | Straight-pull type air cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251232U true CN202251232U (en) | 2012-05-30 |
Family
ID=46112482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203423781U Expired - Fee Related CN202251232U (en) | 2011-09-14 | 2011-09-14 | Straight-pull type air cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084954A (en) * | 2014-07-09 | 2014-10-08 | 苏州晓炎自动化设备有限公司 | Mechanical hand cylinder base mechanism |
-
2011
- 2011-09-14 CN CN2011203423781U patent/CN202251232U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084954A (en) * | 2014-07-09 | 2014-10-08 | 苏州晓炎自动化设备有限公司 | Mechanical hand cylinder base mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20150914 |
|
| EXPY | Termination of patent right or utility model |