CN203979005U - The locking cylinder structure of end of travel buffering - Google Patents
The locking cylinder structure of end of travel buffering Download PDFInfo
- Publication number
- CN203979005U CN203979005U CN201420374683.2U CN201420374683U CN203979005U CN 203979005 U CN203979005 U CN 203979005U CN 201420374683 U CN201420374683 U CN 201420374683U CN 203979005 U CN203979005 U CN 203979005U
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- CN
- China
- Prior art keywords
- buffering
- oil cylinder
- spool
- oil
- channel
- 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- Withdrawn - After Issue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 discloses a kind of locking cylinder structure of end of travel buffering, it comprises oil cylinder seat, buffering valve pocket, buffering spool, piston and spring, oil cylinder seat has oil supply gallery and oil cylinder chamber, buffering valve pocket is arranged on oil cylinder seat, piston is positioned at oil cylinder chamber, buffering spool cunning fits in buffering valve pocket, and spring is arranged between one end and buffering valve pocket of buffering spool, the other end of buffering spool stretches in oil cylinder chamber, between described oil supply gallery and oil cylinder chamber, be provided with for the large traffic channel to oil cylinder chamber fuel feeding and small flow buffer channel, large traffic channel is arranged between oil cylinder seat and buffering spool, small flow buffer channel is arranged on buffering spool, in the time that piston reaches certain stroke, buffering spool makes it coordinate clogging large traffic channel with oil cylinder seat under the effect of spring, and oil flows to and after small flow buffer channel, enters oil cylinder chamber from oil supply gallery.The utility model not only can be realized quick locking function, and can have pooling feature in the locking later stage, thereby avoids impact phenomenon when can improving its tool-changing speed.
Description
Technical field
The utility model relates to a kind of locking cylinder structure of end of travel buffering, belongs to numerical control machine tool servo saddle technical field.
Background technique
At present, the working principle of servo saddle is: adopt actuating motor transposition, three fluted disc indexing location, short stroke oil cylinder locking because servo saddle transposition and fluted disc location exists error, produces " normotopia " action in the time that fluted disc is accurately located, and oil cylinder locking power is larger, when locking, impact very large; Though adopt throttle valve speed governing can reach cushioning effect, oil cylinder locking speed obviously reduces, and has a strong impact on the important performance-tool-changing speed of servo saddle.
Summary of the invention
Technical problem to be solved in the utility model is the defect that overcomes prior art, a kind of locking cylinder structure of end of travel buffering is provided, it not only can realize quick locking function, and can there is pooling feature in the locking later stage, thereby avoid impact phenomenon when can improving its tool-changing speed.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of locking cylinder structure of end of travel buffering, it is characterized in that: it comprises oil cylinder seat, buffering valve pocket, buffering spool, piston and spring, oil cylinder seat has oil supply gallery and oil cylinder chamber, buffering valve pocket is arranged on oil cylinder seat, piston is positioned at oil cylinder chamber, buffering spool cunning fits in buffering valve pocket, and spring is arranged between one end and buffering valve pocket of buffering spool, the other end of buffering spool stretches in oil cylinder chamber, between described oil supply gallery and oil cylinder chamber, be provided with for the large traffic channel to oil cylinder chamber fuel feeding and small flow buffer channel, large traffic channel is arranged between oil cylinder seat and buffering spool, small flow buffer channel is arranged on buffering spool, in the time that piston reaches certain stroke, buffering spool makes it coordinate clogging large traffic channel with oil cylinder seat under the effect of spring, and oil flows to and after small flow buffer channel, enters oil cylinder chamber from oil supply gallery.
A kind of structure of oil supply gallery is further provided, and described oil supply gallery comprises the oil duct of offering on cylinder tube and oil cylinder seat, and the filler opening of cylinder tube is connected with outside oil-feeding device, and the oil outlet of cylinder tube is connected with oil duct.
A kind of formation structure of large traffic channel is further provided, in oil cylinder seat, be also provided with spool chamber, buffering spool is positioned at spool chamber, between spool chamber and oil cylinder chamber, be communicated with oilhole, described buffering spool stretches into the position in oil cylinder chamber for stretching into portion, and this portion of stretching into stretches into oil cylinder chamber after penetrating oilhole, between the outer wall of the inwall of spool chamber and buffering spool, form first passage, between the outer wall of oilhole and buffering spool, form second channel, described large traffic channel is communicated with and forms successively by first passage and second channel, the connected portion of first passage and second channel is the shutoff position of large traffic channel.
A kind of formation structure of small flow buffer channel is further provided, on buffering spool, be upwards provided with the first buffer channel in its footpath, and it stretches into portion and be provided with the second buffer channel on it is axial, small flow buffer channel is mainly communicated with and forms successively by the first buffer channel and the second buffer channel, the first buffer channel is communicated with oil supply gallery by first passage, and the second buffer channel is communicated with oil cylinder chamber.
The moment being further closed for fear of large traffic channel, small flow buffer channel and oil cylinder chamber are also caused piston stop motion cannot complete the phenomenon of locking action by the sealing of the end face of piston, and the described portion that stretches into is upwards provided with the side opening being communicated with the second buffer channel in its footpath.
Further under pressure oil effect, from oil cylinder seat, do not come off again in order to make to cushion valve pocket, the locking cylinder structure of end of travel buffering also comprises casing, described oil cylinder seat is arranged in casing, and on casing, be threaded connection screw, one end of described buffering valve pocket is connected on oil cylinder seat, and the other end is connected on screw.
Adopt after technique scheme, described pressure oil enters oil cylinder chamber from entering large traffic channel (circulation area > import drift diameter area) and small flow buffer channel (circulation area ≈ import drift diameter area 1/7) in oil supply gallery, promotes piston and moves ahead fast, spring promotion buffering spool is followed piston and is moved ahead, because the chamber, front and back of buffering spool communicates, the speed of following that can the poor and sluggish buffering spool of mineralization pressure, when piston and buffering spool proceed to the certain position place of stroke, the bottom surface laminating of the buffering end face of spool and the spool chamber of oil cylinder seat is by large traffic channel sealing, pressure oil can only be by the small flow buffer channel fuel feeding of buffering center spool, at the back segment of stroke, the speed of piston is significantly reduced, thereby the cushioning effect while reaching locking, buffering spool is no longer accompanied and is thrown off gradually with piston, this just just not only can realize quick locking function, and can there is pooling feature in the locking later stage, thereby when can improving its tool-changing speed, avoid impact phenomenon.
Brief description of the drawings
Fig. 1 is the structural representation of the locking cylinder structure of end of travel buffering of the present utility model.
Embodiment
For content of the present utility model is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below.
As shown in Figure 1, a kind of locking cylinder structure of end of travel buffering, it comprises oil cylinder seat 4, buffering valve pocket 7, buffering spool 5, piston 3 and spring 6, oil cylinder seat 4 has oil supply gallery and oil cylinder chamber 4-1, buffering valve pocket 7 is arranged on oil cylinder seat 4, piston 3 is positioned at oil cylinder chamber 4-1, buffering spool 5 is sliding to be fitted in buffering valve pocket 7, and spring 6 is arranged between one end and buffering valve pocket 7 of buffering spool 5, the other end of buffering spool 5 stretches in the 4-1 of oil cylinder chamber, between oil supply gallery and oil cylinder chamber 4-1, be provided with for the large traffic channel to oil cylinder chamber 4-1 fuel feeding and small flow buffer channel, large traffic channel is arranged between oil cylinder seat 4 and buffering spool 5, small flow buffer channel is arranged on buffering spool 5, in the time that piston 3 reaches certain stroke, buffering spool 5 makes it coordinate clogging large traffic channel with oil cylinder seat 4 under the effect of spring 6, and oil flows to and after small flow buffer channel, enters oil cylinder chamber 4-1 from oil supply gallery.
Oil supply gallery comprises the oil duct 4-2 offering on cylinder tube 2 and oil cylinder seat 4, and the filler opening of cylinder tube 2 is connected with outside oil-feeding device, and the oil outlet of cylinder tube 2 is connected with oil duct 4-2.
In oil cylinder seat 4, be also provided with spool chamber 4-3, buffering spool 5 is positioned at spool chamber 4-3, between spool chamber 4-3 and oil cylinder chamber 4-1, be communicated with oilhole 31, the position that buffering spool 5 stretches into oil cylinder chamber 4-1 is for stretching into the 5-1 of portion, and this stretches into after the 5-1 of portion penetrates oilhole 31 and stretches into oil cylinder chamber 4-1, between the outer wall of the inwall of spool chamber 4-3 and buffering spool 5, form first passage 35, between the outer wall of oilhole 31 and buffering spool 5, form second channel 36, described large traffic channel is communicated with and forms successively by first passage 35 and second channel 36, the connected portion of first passage 35 and second channel 36 is the shutoff position of large traffic channel.
On buffering spool 5, be upwards provided with the first buffer channel 5-2 in its footpath, and it stretches into the 5-1 of portion and be provided with the second buffer channel 5-3 on it is axial, small flow buffer channel is mainly communicated with and forms successively by the first buffer channel 5-2 and the second buffer channel 5-3, the first buffer channel 5-2 is communicated with oil supply gallery by first passage 35, and the second buffer channel 5-3 is communicated with oil cylinder chamber 4-1.
Stretch into the 5-1 of portion and be upwards provided with the side opening 5-4 being communicated with the second buffer channel 5-3 in its footpath.
The locking cylinder structure of end of travel buffering also comprises casing 1, and oil cylinder seat 4 is arranged in casing 1, and has been threaded connection screw 8 on casing 1, and one end of buffering valve pocket 7 is connected on oil cylinder seat 4, and the other end is connected on screw 8.
Working principle of the present utility model is as follows:
Described pressure oil enters oil cylinder chamber 4-1 from entering large traffic channel (circulation area > import drift diameter area) and small flow buffer channel (circulation area ≈ import drift diameter area 1/7) in oil supply gallery, promotes piston 3 and moves ahead fast, spring 6 promotion buffering spools 5 are followed piston 3 and are moved ahead, because the chamber, front and back of buffering spool 5 communicates, the speed of following that can the poor and sluggish buffering spool 5 of mineralization pressure, when piston 3 and buffering spool 5 proceed to the certain position place of stroke, the bottom surface laminating of the buffering end face of spool 5 and the spool chamber 4-3 of oil cylinder seat 4 is by large traffic channel sealing, pressure oil can only be by the small flow buffer channel fuel feeding at buffering spool 5 centers, at the back segment of stroke, the speed of piston 3 is significantly reduced, thereby the cushioning effect while reaching locking, 5 of buffering spools are no longer accompanied and throw off gradually with piston 3, this just just not only can realize quick locking function, and can there is pooling feature in the locking later stage, thereby when can improving its tool-changing speed, avoid impact phenomenon.
Above-described specific embodiment; technical problem, technological scheme and beneficial effect that the utility model is solved further describe; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. the locking cylinder structure of an end of travel buffering, it is characterized in that: it comprises oil cylinder seat (4), buffering valve pocket (7), buffering spool (5), piston (3) and spring (6), oil cylinder seat (4) has oil supply gallery and oil cylinder chamber (4-1), buffering valve pocket (7) is arranged on oil cylinder seat (4), piston (3) is positioned at oil cylinder chamber (4-1), buffering spool (5) is sliding to be fitted in buffering valve pocket (7), and spring (6) is arranged between one end and buffering valve pocket (7) of buffering spool (5), the other end of buffering spool (5) stretches in oil cylinder chamber (4-1), between described oil supply gallery and oil cylinder chamber (4-1), be provided with for large traffic channel and small flow buffer channel to oil cylinder chamber (4-1) fuel feeding, large traffic channel is arranged between oil cylinder seat (4) and buffering spool (5), small flow buffer channel is arranged on buffering spool (5), in the time that piston (3) reaches certain stroke, buffering spool (5) makes it coordinate clogging large traffic channel with oil cylinder seat (4) under the effect of spring (6), and oil flows to and after small flow buffer channel, enters oil cylinder chamber (4-1) from oil supply gallery.
2. the locking cylinder structure of end of travel buffering according to claim 1, it is characterized in that: described oil supply gallery comprises the oil duct (4-2) of offering on cylinder tube (2) and oil cylinder seat (4), the filler opening of cylinder tube (2) is connected with outside oil-feeding device, and the oil outlet of cylinder tube (2) is connected with oil duct (4-2).
3. the locking cylinder structure of end of travel buffering according to claim 1 and 2, it is characterized in that: in oil cylinder seat (4), be also provided with spool chamber (4-3), buffering spool (5) is positioned at spool chamber (4-3), between spool chamber (4-3) and oil cylinder chamber (4-1), be communicated with oilhole (31), described buffering spool (5) stretches into the position in oil cylinder chamber (4-1) for stretching into portion (5-1), and this stretches into after portion (5-1) penetrates oilhole (31) and stretches into oil cylinder chamber (4-1), between the outer wall of the inwall of spool chamber (4-3) and buffering spool (5), form first passage (35), between the outer wall of oilhole (31) and buffering spool (5), form second channel (36), described large traffic channel is communicated with and forms successively by first passage (35) and second channel (36), the shutoff position that the connected portion of first passage (35) and second channel (36) is large traffic channel.
4. the locking cylinder structure of end of travel buffering according to claim 3, it is characterized in that: upper the first buffer channel (5-2) that is upwards provided with in its footpath of described buffering spool (5), and it stretches into portion (5-1) and be provided with the second buffer channel (5-3) on it is axial, small flow buffer channel is mainly communicated with and forms successively by the first buffer channel (5-2) and the second buffer channel (5-3), the first buffer channel (5-2) is communicated with oil supply gallery by first passage (35), the second buffer channel (5-3) is communicated with oil cylinder chamber (4-1).
5. the locking cylinder structure of end of travel buffering according to claim 4, is characterized in that: the described portion that stretches into (5-1) is upwards provided with the side opening (5-4) being communicated with the second buffer channel (5-3) in its footpath.
6. the locking cylinder structure of end of travel buffering according to claim 1, it is characterized in that: also comprise casing (1), described oil cylinder seat (4) is arranged in casing (1), and on casing (1), be threaded connection screw (8), it is upper that one end of described buffering valve pocket (7) is connected to oil cylinder seat (4), and the other end is connected on screw (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420374683.2U CN203979005U (en) | 2014-07-08 | 2014-07-08 | The locking cylinder structure of end of travel buffering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420374683.2U CN203979005U (en) | 2014-07-08 | 2014-07-08 | The locking cylinder structure of end of travel buffering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979005U true CN203979005U (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420374683.2U Withdrawn - After Issue CN203979005U (en) | 2014-07-08 | 2014-07-08 | The locking cylinder structure of end of travel buffering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047924A (en) * | 2014-07-08 | 2014-09-17 | 常州市新墅机床数控设备有限公司 | Locking oil cylinder structure with stroke tail end buffered |
-
2014
- 2014-07-08 CN CN201420374683.2U patent/CN203979005U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047924A (en) * | 2014-07-08 | 2014-09-17 | 常州市新墅机床数控设备有限公司 | Locking oil cylinder structure with stroke tail end buffered |
| CN104047924B (en) * | 2014-07-08 | 2016-01-13 | 常州市新墅机床数控设备有限公司 | The locking cylinder structure of end of travel buffering |
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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: 20141203 Effective date of abandoning: 20160113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |