CN216518966U - Oil cylinder with leak-proof structure at oil inlet - Google Patents
Oil cylinder with leak-proof structure at oil inlet Download PDFInfo
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- CN216518966U CN216518966U CN202123374049.8U CN202123374049U CN216518966U CN 216518966 U CN216518966 U CN 216518966U CN 202123374049 U CN202123374049 U CN 202123374049U CN 216518966 U CN216518966 U CN 216518966U
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Abstract
The utility model provides a knife forging oil cylinder with an oil inlet leakage-proof structure, which comprises an oil cylinder body, wherein the oil cylinder body comprises an oil cylinder body, a rear cover and a piston, the rear cover is hermetically arranged at the rear end of the oil cylinder body, the piston is arranged in the oil cylinder body, two ends of the piston penetrate through the front end of the oil cylinder body and the rear cover to perform piston movement, a knife loosening oil inlet cavity is formed in the oil cylinder body and is positioned at the front end of the piston, a knife loosening oil inlet is formed in one side of the front end of the oil cylinder body, the knife loosening oil inlet is axially communicated into the knife loosening oil inlet cavity, a knife drawing oil inlet cavity is formed in the oil cylinder body and is positioned between the rear end of the piston and the rear cover, an arc connecting port is formed in the side wall of the oil cylinder body, a knife drawing oil inlet is formed in the other side of the front end of the oil cylinder body, and the knife drawing oil inlet is axially communicated to the arc connecting port; according to the utility model, the arc connecting port is arranged in the broach oil inlet cavity and is directly communicated with the broach oil inlet through the arc connecting port, so that the problem that in the prior art, holes are required to be formed and plugged independently on the side wall of the rear cover is solved, and the problem of oil leakage caused by poor sealing performance of the plugged holes on the side wall is avoided.
Description
Technical Field
The utility model belongs to the technical field of numerical control machine tool spindle cutter beating equipment, and particularly relates to a cutter beating oil cylinder with an oil inlet leakage-proof structure.
Background
The tool-cutting oil cylinder utilizes hydraulic oil with larger pressure to ensure that the numerical control machine tool realizes tool-changing action. In the industrial field, the unclamping cylinder is mainly used for main shaft unclamping in automatic or semi-automatic exchange mechanisms of machining center machine tools and numerical control milling machine tools, and can also be used as a clamping device of clamps and other mechanisms.
When the broach oil inlet of the vast majority of unclamping cylinder accesss to broach oil feed chamber in the existing market, all need communicate broach oil inlet and broach oil feed chamber through radially opening an oilhole in back lid lateral wall position, but following two technical problem appear easily in processing like this: 1. the wall of the broach oil inlet at the radial processing position is thin, and radial drilling easily causes the side wall of the rear cover to deform, so that the broach oil inlet is blocked; 2. after the radial hole is communicated with the broach oil inlet and the broach oil inlet cavity, the part of the wall communicated with the oil outlet needs to be plugged by a plug independently, and only the broach oil inlet is communicated with the position to be communicated, so that the situations of poor plugging tightness and oil leakage frequently occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems in the background technology, and provides a knife striking oil cylinder with an oil inlet leakage-proof structure.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a knife-beating hydro-cylinder of oil inlet leak protection structure, includes the hydro-cylinder body, the hydro-cylinder body includes the hydro-cylinder body, back lid and piston, back lid seal installation is in the hydro-cylinder body rear end, the piston is installed in the hydro-cylinder body, the piston both ends pass the hydro-cylinder body front end and back lid is the piston motion, it forms the pine sword inlet chamber to lie in the piston front end in the hydro-cylinder body, open on one side of the hydro-cylinder body front end has the pine sword oil inlet, pine sword oil inlet axial leads to in the pine sword oil inlet intracavity, lie in the hydro-cylinder body and form the broach inlet chamber between piston rear end and the back lid, broach inlet chamber lies in the hydro-cylinder body lateral wall and opens there is the circular arc connector, the hydro-cylinder body front end opposite side is opened there is the broach oil inlet, broach oil inlet axial leads to circular arc connector department.
Preferably, the area of the arc connecting port is larger than or equal to the area of an oil inlet hole of the broach oil inlet.
Preferably, two first V-shaped sealing rings are embedded in the position, located on the oil cylinder body, of the side wall of the piston, and openings of the two first V-shaped sealing rings face the cutter loosening oil inlet cavity and the cutter pulling oil inlet cavity on two sides respectively.
Preferably, a second V-shaped sealing ring is embedded into the inner wall of the front end of the oil cylinder body, and the opening of the second V-shaped sealing ring faces the oil inlet cavity of the loosening cutter.
Preferably, a third V-shaped sealing ring is installed on the inner wall of the rear cover, and an opening of the third V-shaped sealing ring faces the broach oil inlet cavity.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the arc connecting port is arranged in the broach oil inlet cavity and is directly communicated with the broach oil inlet through the arc connecting port, so that the problem that in the prior art, holes are separately formed and blocked on the side wall of the rear cover is solved, the processing steps are reduced, the broach oil inlet cavity and the arc connecting port can be simultaneously processed through end face milling directly, the production cost is reduced, the technical problem that oil leakage occurs due to the fact that the holes are formed on the side wall and are blocked by the plugs is solved, the structure is simple, and the realization and the production are facilitated.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is an enlarged view of a circular arc connection port according to an embodiment of the present invention;
the embodiment of the utility model mainly comprises the following component symbols:
the oil cylinder body-1, the loose tool oil inlet-101, the broach oil inlet-102, the piston-2, the rear cover-3, the loose tool oil inlet cavity-4, the broach oil inlet cavity-5, the arc connecting port-501, the first V-shaped sealing ring-6, the second V-shaped sealing ring-7 and the third V-shaped sealing ring-8.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for 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 considered as limiting the present invention.
As shown in fig. 1 to 3, a knife breaking oil cylinder with a leakproof structure for an oil inlet comprises an oil cylinder body, the oil cylinder body comprises an oil cylinder body 1, a rear cover 3 and a piston 2, the rear cover 3 is hermetically arranged at the rear end of the oil cylinder body 1, the piston 2 is arranged in the oil cylinder body 1, two ends of the piston 2 pass through the front end of the oil cylinder body 1 and the rear cover 3 to move as the piston 2, a cutter loosening oil inlet cavity 4 is formed in the oil cylinder body 1 at the front end of the piston 2, a cutter loosening oil inlet 101 is formed in one side of the front end of the oil cylinder body 1, the loose knife oil inlet 101 is axially communicated to the loose knife oil inlet cavity 4, a broach oil inlet cavity 5 is formed in the oil cylinder body 1 between the rear end of the piston 2 and the rear cover 3, the broach oil inlet cavity 5 is positioned on the side wall of the oil cylinder body 1 and is provided with an arc connecting port 501, the other side of the front end of the oil cylinder body 1 is provided with a broach oil inlet 102, and the broach oil inlet 102 is axially communicated to the arc connecting port 501.
According to the utility model, the arc connecting port 501 is arranged in the broach oil inlet cavity 5 and is directly communicated with the broach oil inlet 102 through the arc connecting port 501, so that the problem that the side wall of the rear cover 3 needs to be independently provided with holes and plugged in the prior art is solved, the processing steps are reduced, the broach oil inlet cavity 5 and the arc connecting port 501 can be simultaneously processed directly through end face milling, the production cost is reduced, the technical problem that the side wall needs to be plugged by a plug for tapping and oil leakage is solved, the structure is simple, and the realization and the production are facilitated.
The area of the arc connecting port 501 is larger than or equal to the area of an oil inlet hole at the bottom of the broach oil inlet 102, so that the oil passing amount of the broach oil inlet 102 is close to the oil inlet amount of the arc connecting port 501, the broach moves more smoothly, and the phenomenon that the oil inlet of hydraulic oil is slow or the hydraulic oil pressure required by the broach cannot be kept up with the oil pressure of the hydraulic oil is avoided.
Two first V-shaped sealing rings 6 are embedded and mounted on the side wall of the piston 2 at the oil cylinder body 1, and openings of the two first V-shaped sealing rings 6 face a cutter loosening oil inlet cavity 4 and a cutter pulling oil inlet cavity 5 on two sides respectively; a second V-shaped sealing ring 7 is embedded in the inner wall of the front end of the oil cylinder body 1, and the opening of the second V-shaped sealing ring 7 faces the oil inlet cavity 4 of the cutter loosening machine; third V type sealing washer 8 is installed to 3 inner walls of back lid, the opening of third V type sealing washer 8 is towards broach oil feed chamber 5, realizes jointly through first V type sealing washer 6, second V type sealing washer 7 and third V type sealing washer 8 that the inseparable cooperation of the hydro-cylinder of forging a knife improves the leakproofness and the dynamic stability of hydro-cylinder forging a knife.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides a knife-cutting oil cylinder of oil inlet leak protection structure, includes the hydro-cylinder body, its characterized in that: the oil cylinder body comprises an oil cylinder body, a rear cover and a piston, the rear cover is hermetically installed at the rear end of the oil cylinder body, the piston is installed in the oil cylinder body, the two ends of the piston penetrate through the front end of the oil cylinder body and the rear cover to move, a cutter loosening oil inlet cavity is formed in the oil cylinder body and located at the front end of the piston, a cutter loosening oil inlet is formed in one side of the front end of the oil cylinder body and axially communicated with the cutter loosening oil inlet cavity, a cutter drawing oil inlet cavity is formed in the oil cylinder body and located between the rear end of the piston and the rear cover, the cutter drawing oil inlet cavity is located on the side wall of the oil cylinder body and is provided with an arc connecting port, a cutter drawing oil inlet is formed in the other side of the front end of the oil cylinder body, and the cutter drawing oil inlet axially communicates with the arc connecting port.
2. The unclamping cylinder according to claim 1, characterized in that: the area of the arc connecting port is larger than or equal to the area of an oil inlet hole of an oil inlet of the broach.
3. The unclamping cylinder according to claim 2, characterized in that: the side wall of the piston is embedded with two first V-shaped sealing rings at the oil cylinder body, and the openings of the two first V-shaped sealing rings face the cutter loosening oil inlet cavity and the cutter pulling oil inlet cavity at two sides respectively.
4. The unclamping cylinder according to claim 3, characterized in that: a second V-shaped sealing ring is embedded into the inner wall of the front end of the oil cylinder body, and the opening of the second V-shaped sealing ring faces to the oil inlet cavity of the cutter loosening machine.
5. The unclamping cylinder according to claim 4, characterized in that: and a third V-shaped sealing ring is installed on the inner wall of the rear cover, and the opening of the third V-shaped sealing ring faces to the broach oil inlet cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123374049.8U CN216518966U (en) | 2021-12-30 | 2021-12-30 | Oil cylinder with leak-proof structure at oil inlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123374049.8U CN216518966U (en) | 2021-12-30 | 2021-12-30 | Oil cylinder with leak-proof structure at oil inlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216518966U true CN216518966U (en) | 2022-05-13 |
Family
ID=81507079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123374049.8U Active CN216518966U (en) | 2021-12-30 | 2021-12-30 | Oil cylinder with leak-proof structure at oil inlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216518966U (en) |
-
2021
- 2021-12-30 CN CN202123374049.8U patent/CN216518966U/en active Active
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