CN203509781U - Compensating device for numerically controlled landing boring and milling center ram dead load deformation - Google Patents
Compensating device for numerically controlled landing boring and milling center ram dead load deformation Download PDFInfo
- Publication number
- CN203509781U CN203509781U CN201320588044.1U CN201320588044U CN203509781U CN 203509781 U CN203509781 U CN 203509781U CN 201320588044 U CN201320588044 U CN 201320588044U CN 203509781 U CN203509781 U CN 203509781U
- Authority
- CN
- China
- Prior art keywords
- ram
- piston
- milling center
- cylinder block
- pull bar
- 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
Links
Images
Abstract
The utility model provides a compensating device for numerically controlled landing boring and milling center ram dead load deformation. The compensating device comprises a ram body with the back end connected with a ram covering plate, and further comprises a pulling rod and an oil cylinder body, wherein the pulling rod is inserted into the ram body in the length direction of the ram body and located on the upper portion of the ram body, the front end of the pulling rod is fixedly connected with a stop block, and the stop block is matched with a circular bead inside the ram body and is hooked on the circular bead, the oil cylinder body is fixedly arranged on the ram covering plate of the ram body, a piston capable of moving back and forth is arranged inside the oil cylinder body, and the back end of the pulling rod penetrates through the ram covering plate and is fixedly connected with the piston. Due to the fact that the pulling rod is arranged inside the ram body, an oil cylinder at the back end of a ram drives the pulling rod to tension a cantilever of the ram backwards, the gravity deformation is overcome, and the machining precision of a numerically controlled landing boring and milling center is improved. The compensating device is simple in structure, convenient to install and low in manufacturing cost.
Description
Technical field
The utility model relates to digital-control boring-milling machine technical field, especially relates to a kind of compensation arrangement of numerical control floor boring-milling center ram deformation induced by gravity.
Background technology
At present, stability and the precision of raising lathe are the developing direction of lathe always.Ram is the vitals of numerical control floor boring-milling center, and its structure and performance will directly affect the overall performance of lathe.And present part is landed boring-milling center ram cantilever and stretched out forward longer dimension, under Action of Gravity Field, ram self produces deformation, and then has influence on the overall precision of lathe.
Summary of the invention
In order to solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of compensation arrangement of numerical control floor boring-milling center ram deformation induced by gravity, to overcome ram because of the deformation of the long generation gravity of cantilever.
In order to achieve the above object, the utility model provides a kind of compensation arrangement of numerical control floor boring-milling center ram deformation induced by gravity, comprises that rear end is connected with the ram body of ram cover plate, it is characterized in that, also comprises:
Pull bar, its length direction along described ram body is inserted into forward the inside of described ram body and is positioned at top position, and the front end of described pull bar is fixedly connected with block, and described block coordinates with the shoulder of described ram body interior and is hooked on described shoulder;
Cylinder block, it is installed on the ram cover plate of described ram body, is provided with the piston that can seesaw in described cylinder block, and the rear end of described pull bar is passed described ram cover plate and is fixedly connected with described piston.
Preferably, described cylinder block is fixedly connected on described ram cover plate by screw, between described cylinder block and described ram cover plate, is also provided with sealing gasket.
More preferably, described piston is arranged on cylinder block inside, described piston is also interval with O type circle and reciprocating seal ring along the outer shroud of fore-and-aft direction, and described cylinder block, described piston, described reciprocating seal ring, described O type circle and described sealing gasket form seal cavity; Described cylinder block is provided with the fuel feed hole being connected with described seal cavity, and described fuel feed hole is between described O type circle and described reciprocating seal ring, and described seal cavity and described fuel feed hole form oil pocket.
In specific embodiment, described compensation arrangement also comprises that described electro-hydraulic proportional valve is connected with described fuel feed hole for controlling the electro-hydraulic proportional valve of oil pressure.By electro-hydraulic proportional valve, control input pressure, thereby the tightening force of control piston and pull bar overcomes the gravity deformation of ram.
Preferably, the rear end of described pull bar is run through described oil cylinder piston and is fixedly connected with described piston by locking nut.
Preferably, the quantity of described pull bar is a plurality of, and a plurality of described pull bars are connected with described piston respectively.
In one embodiment, the quantity of described pull bar is two, and two described pull bars are set in parallel in the inside of ram body and symmetrical along the axis of ram body length direction.
Owing to adopting technique scheme, the utlity model has following advantage: by pull bar being set in ram inside, by the oil cylinder of ram rear end, drive pull bar that the cantilever of ram is strained backward, overcome gravity deformation effect, thereby improve, land the machining accuracy of numerical control boring-milling center.The utility model is simple in structure, easy for installation, and cost of manufacture is lower.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model.
In accompanying drawing: 1-ram body, 2-block, 3-ram cover plate, 4-screw, 5-sealing gasket, 6-fuel feed hole, 7-cylinder block, 8-reciprocating seal ring, 9-piston, 10-locking nut, 11-locks thin nut, 12-pull bar, 13-O type circle, 110-shoulder.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is preferred embodiment elaborated.
Refer to Fig. 1, a kind of compensation arrangement of numerical control floor boring-milling center ram deformation induced by gravity, comprises that rear end is connected with the ram body 1 of ram cover plate 3, also comprises:
Cylinder block 7, it is fixedly connected on by screw 4 on the ram cover plate 3 of ram body 1, is provided with the piston 9 that can seesaw in cylinder block 7, and the rear end of pull bar 12 is passed ram cover plate 3 and is fixedly connected with piston 9.Particularly, the rear end of pull bar 12 is run through oil cylinder piston 9 and is fixedly connected with described piston (9) with locking thin nut 11 by locking nut 10.
Wherein, between cylinder block 7 and ram cover plate 3, be also provided with sealing gasket 5.Piston 9 is arranged on cylinder block 7 inside, and piston 9 is also interval with O type circle 13 and reciprocating seal ring 8 along the outer shroud of fore-and-aft direction, and cylinder block 7, piston 9, reciprocating seal ring 8, O type circle and sealing gasket 5 form seal cavity.Cylinder block 7 is provided with the fuel feed hole 6 being connected with described seal cavity, and fuel feed hole 6 is between described O type circle 13 and described reciprocating seal ring 8, and described seal cavity and fuel feed hole 6 form oil pocket.Described compensation arrangement also comprises that described electro-hydraulic proportional valve is connected with described fuel feed hole 6 for controlling the electro-hydraulic proportional valve (not shown) of oil pressure.
The utility model operation principle is: when ram stretches out because deadweight deforms, pressure through electric-hydraulic proportion valve regulation pressure oil, pressure oil is in fuel feed hole 6 enters cylinder block 7, after driving piston, move, piston pulls pull bar 12, provide pull bar 12 required pulling force, thereby overcome the gravity deformation of ram, to guarantee the mobile accuracy of ram.
The quantity of described pull bar 12 can be for a plurality of, and a plurality of pull bars 12 are connected with piston 9 respectively and are synchronized with the movement.In the present embodiment, adopt two pull bars 12 to be set in parallel in the inside of ram body 1, two pull bars 12 are symmetrical along the axis of ram body 1 length direction.During two pull bar 12 tensions, the inside of ram body 1 is stressed more even.
Claims (7)
1. a compensation arrangement for numerical control floor boring-milling center ram deformation induced by gravity, comprises that rear end is connected with the ram body (1) of ram cover plate (3), it is characterized in that, also comprises:
Pull bar (12), its length direction along described ram body (1) is inserted into forward the inside of described ram body (1) and is positioned at top position, the front end of described pull bar (12) is fixedly connected with block (2), and described block (2) shoulder (110) inner with described ram body (1) coordinates and be hooked on described shoulder (110);
Cylinder block (7), it is installed on the ram cover plate (3) of described ram body (1), in described cylinder block (7), be provided with the piston (9) that can seesaw, the rear end of described pull bar (12) is passed described ram cover plate (3) and is fixedly connected with described piston (9).
2. the compensation arrangement of a kind of numerical control floor boring-milling center ram deformation induced by gravity according to claim 1, it is characterized in that: it is upper that described cylinder block (7) is fixedly connected on described ram cover plate (3) by screw, between described cylinder block (7) and described ram cover plate (3), is also provided with sealing gasket (5).
3. the compensation arrangement of a kind of numerical control floor boring-milling center ram deformation induced by gravity according to claim 2, it is characterized in that: described piston (9) is arranged on cylinder block (7) inside, described piston (9) is also interval with O type circle (13) and reciprocating seal ring (8) along the outer shroud of fore-and-aft direction, and described cylinder block (7), described piston (9), described reciprocating seal ring (8), described O type circle and described sealing gasket (5) form seal cavity; Described cylinder block (7) is provided with the fuel feed hole (6) being connected with described seal cavity, and described fuel feed hole (6) is positioned between described O type circle (13) and described reciprocating seal ring (8), and described seal cavity and described fuel feed hole (6) form oil pocket.
4. the compensation arrangement of a kind of numerical control floor boring-milling center ram deformation induced by gravity according to claim 3, it is characterized in that: described compensation arrangement also comprises that, for controlling the electro-hydraulic proportional valve of oil pressure, described electro-hydraulic proportional valve is connected with described fuel feed hole (6).
5. the compensation arrangement of a kind of numerical control floor boring-milling center ram deformation induced by gravity according to claim 1, is characterized in that: the rear end of described pull bar (12) is run through described oil cylinder piston (9) and is fixedly connected with described piston (9) by locking nut.
6. the compensation arrangement of a kind of numerical control floor boring-milling center ram deformation induced by gravity according to claim 1, is characterized in that: the quantity of described pull bar (12) is a plurality of, and a plurality of described pull bars (12) are connected with described piston (9) respectively.
7. the compensation arrangement of a kind of numerical control floor boring-milling center ram deformation induced by gravity according to claim 6, it is characterized in that: the quantity of described pull bar (12) is two, two described pull bars (12) are set in parallel in the inside of ram body (1) and symmetrical along the axis of ram body (1) length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588044.1U CN203509781U (en) | 2013-09-23 | 2013-09-23 | Compensating device for numerically controlled landing boring and milling center ram dead load deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588044.1U CN203509781U (en) | 2013-09-23 | 2013-09-23 | Compensating device for numerically controlled landing boring and milling center ram dead load deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203509781U true CN203509781U (en) | 2014-04-02 |
Family
ID=50368763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320588044.1U Expired - Fee Related CN203509781U (en) | 2013-09-23 | 2013-09-23 | Compensating device for numerically controlled landing boring and milling center ram dead load deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203509781U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465109A (en) * | 2013-09-23 | 2013-12-25 | 苏州江源精密机械有限公司 | Compensation device for dead-weight deformation of ram of numerical control floor boring and milling machining center |
-
2013
- 2013-09-23 CN CN201320588044.1U patent/CN203509781U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465109A (en) * | 2013-09-23 | 2013-12-25 | 苏州江源精密机械有限公司 | Compensation device for dead-weight deformation of ram of numerical control floor boring and milling machining center |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202402546U (en) | Lifting air spring of rigidity locking seat | |
| CN201753717U (en) | Built-in type quick composite oil cylinder | |
| CN201065867Y (en) | Hydraulic lift-up device for cylinder movement | |
| CN103016447A (en) | Constant-pressure and constant-force hydraulic servo cylinder with single outlet rod | |
| CN203509781U (en) | Compensating device for numerically controlled landing boring and milling center ram dead load deformation | |
| CN103465109A (en) | Compensation device for dead-weight deformation of ram of numerical control floor boring and milling machining center | |
| CN201982401U (en) | Stable-speed air oil hydraulic cylinder | |
| CN202690578U (en) | Rapid oil cylinder | |
| CN202883540U (en) | Accelerating oil cylinder device | |
| CN103016454B (en) | Monitoring device for servo valve | |
| CN203623015U (en) | Double hydraulic cylinder synchronous control system of gantry hydraulic press | |
| CN202007887U (en) | Integral sealing engineering cylinder | |
| CN202106042U (en) | Hydraulic composite cylinder structure of machine tool tailstock | |
| CN204591860U (en) | Cylinder is easily installed | |
| CN203548408U (en) | Thrust oil cylinder applicable to control over overall shortening amount of friction welding | |
| CN102963031A (en) | Hydraulic press buffering system | |
| CN203532359U (en) | Built-in type pressurizing oil cylinder with rotation preventing and returning functions | |
| CN203449634U (en) | Hydraulic powder molding machine | |
| CN203098685U (en) | Rear-left brake cylinder of truck | |
| CN202520675U (en) | Double-guidance gas-liquid pressurized cylinder | |
| CN203580047U (en) | Quick-response injection structure of injection molding machine | |
| CN203945608U (en) | A kind of injection seat device | |
| CN203214488U (en) | Replenishing valve of hydraulic system for pressing machine | |
| CN209781340U (en) | Buffer oil cylinder | |
| CN203098694U (en) | Dual-cylinder piston type brake cylinder of truck |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20200923 |