CN216938479U - Oil supply assembly of self-centering clamping device for circular workpieces - Google Patents
Oil supply assembly of self-centering clamping device for circular workpieces Download PDFInfo
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- CN216938479U CN216938479U CN202220623409.9U CN202220623409U CN216938479U CN 216938479 U CN216938479 U CN 216938479U CN 202220623409 U CN202220623409 U CN 202220623409U CN 216938479 U CN216938479 U CN 216938479U
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Abstract
The utility model relates to the technical field of clamping devices, in particular to an oil supply assembly of a self-centering clamping device for a circular workpiece, wherein a first oil supply support and a hydraulic station are arranged at the outer side of a rotary table body, a first integrated block and a second integrated block are butted by utilizing the movement of a hydraulic cylinder only when the rotary table body stops rotating, thereby the hydraulic station is communicated with the hydraulic chuck mechanism, the connection and the locking of the oil supply pipeline are realized through the hydraulic lock connected at a specific position, the clamping or the loosening of the circular workpiece is realized, when the rotary table body rotates, the first integrated block is separated from the second integrated block, namely, the hydraulic station and the hydraulic chuck mechanism do not need to be communicated, therefore, a rotary joint structure does not need to be arranged in the hydraulic chuck mechanism, thereby can guarantee the inside leakproofness of hydraulic chuck mechanism more lastingly, can guarantee stable fuel feeding, also reduce fuel feeding unit's the maintenance degree of difficulty.
Description
Technical Field
The utility model relates to the technical field of clamping devices, in particular to an oil supply assembly of a self-centering clamping device for a circular workpiece.
Background
In the prior art, before a large-sized circular workpiece needs to be subjected to finish machining through a numerical control machine, the circular workpiece needs to be positioned and clamped on a fixture, and although a technology for centering and clamping the circular workpiece through a three-jaw chuck exists in the prior art, the existing three-jaw chuck is difficult to be directly suitable for centering and clamping of the large-sized circular workpiece.
If a large-scale circular workpiece needs to be finely machined on a numerical control machine tool, a rotating support piece needs to be arranged outside a three-jaw chuck to assist in supporting the circular workpiece, the three-jaw chuck is a hydraulic chuck, oil needs to be supplied into the hydraulic chuck to realize the movement of three jaws, in the prior art, an oil supply pipeline of the hydraulic chuck is directly connected to the hydraulic chuck, a rotary joint needs to be matched in the way to ensure that oil can be stably supplied when the hydraulic chuck mechanism rotates along with a rotary table body, but in order to improve the clamping precision, the requirement on the sealing performance of the rotary joint is extremely high, but the sealing piece is easy to age after being used for a long time, the oil supply assembly is arranged inside a clamping device, the difficulty in overhauling and replacing the sealing piece is extremely high, and if an auxiliary-supported rolling support mechanism is used, the difficulty in overhauling and replacing the sealing piece is further increased, and the requirement on the precision of a rotation angle and the clamping precision of a rotation clamping device used for a numerical control machine tool is extremely high, so that a grating ruler is arranged in the rotary table body, and if the oil supply pipeline is directly connected to the hydraulic chuck, the overhauling difficulty of the oil supply pipeline is further increased.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a ring work piece is from fuel feeding subassembly of centering clamping device, can guarantee that hydraulic pressure chuck mechanism can stabilize the fuel feeding when rotating along with the revolving stage body, can make things convenient for fuel feeding subassembly's maintenance again.
In order to solve the technical problems, the utility model adopts the technical scheme that:
an oil supply assembly of a self-centering clamping device for an annular workpiece comprises:
a base;
the rotary table body is connected to the base;
the hydraulic chuck mechanism is connected to the upper part of the rotary table body;
the oil supply support is connected to the base;
the cylinder body of the hydraulic cylinder is connected with the oil supply support, and the moving direction of the hydraulic cylinder is the radial direction of the rotary table body;
the first integrated block is connected to a piston rod of the hydraulic cylinder;
the oil outlet end of the first oil inlet connecting pipe is connected to the first integrated block;
the oil inlet end of the first oil outlet connecting pipe is connected to the first integrated block;
the oil inlet end of the first oil inlet connecting pipe is connected with the hydraulic station, and the oil outlet end of the first oil outlet connecting pipe is connected with the hydraulic station;
the second integrated block is connected to the rotary table body, when the rotary table body rotates to a certain angle, the first integrated block is over against the second integrated block, the oil outlet end of the first oil inlet connecting pipe is aligned to the oil inlet end of the second oil inlet connecting pipe, and the oil inlet end of the first oil outlet connecting pipe is aligned to the oil outlet end of the second oil inlet connecting pipe;
the oil inlet end of the second oil inlet connecting pipe is connected to the second integrated block, and the oil inlet end of the second oil inlet connecting pipe and the oil outlet end of the first oil inlet connecting pipe are located at the same height;
the oil outlet end of the second oil outlet connecting pipe and the oil inlet end of the first oil outlet connecting pipe are positioned at the same height;
the oil outlet end of the second oil inlet connecting pipe is connected to the hydraulic lock, and the oil inlet end of the second oil outlet connecting pipe is connected to the hydraulic lock;
the oil inlet end of the third oil inlet connecting pipe is connected to the hydraulic lock, and the oil outlet end of the third oil inlet connecting pipe is connected to the turntable body;
and the oil outlet end of the third oil outlet connecting pipe is connected to the hydraulic lock, and the oil inlet end of the third oil outlet connecting pipe is connected to the turntable body.
Further, above-mentioned ring work piece is from oil supply unit of centering clamping device, wherein, the oil feed end of first oil feed connecting pipe and the oil feed end of first oil outlet connecting pipe all are equipped with quick connector, quick connector protrusion is in the place plane of first integrated package orientation revolving stage body, the oil feed end of second oil feed connecting pipe and the oil outlet end of second oil outlet connecting pipe all be equipped with quick connector complex jack, make the pneumatic cylinder remove to drive quick connector and jack butt joint or separation.
Further, above-mentioned ring work piece is from oil supply unit of centering clamping device, wherein, be equipped with the slide rail parallel with the pneumatic cylinder on the oil supply support, first integrated package with slide rail sliding connection.
Further, above-mentioned ring work piece is from the fuel feeding unit of centering clamping device, wherein, one side of slide rail is equipped with proximity switch.
Further, above-mentioned ring work piece is from the fuel feeding unit of centering clamping device, wherein, the inner wall of jack is equipped with the sealing ring.
The utility model has the beneficial effects that: the utility model improves the structure and the connection relation of the oil supply assembly of the self-centering clamping device of the circular workpiece, arranges the first oil supply support and the hydraulic station outside the rotary table body, and enables the first integrated block and the second integrated block to be butted by using the movement of the hydraulic cylinder only when the rotary table body stops rotating, thereby communicating the hydraulic station with the hydraulic chuck mechanism, realizing the communication and locking of the oil supply pipeline through the hydraulic lock connected at a specific position, realizing the clamping or loosening of the circular workpiece, separating the first integrated block from the second integrated block in the rotating process of the rotary table body, namely, the hydraulic station and the hydraulic chuck mechanism do not need to be communicated, therefore, a rotary joint structure does not need to be arranged in the hydraulic chuck mechanism, thereby can guarantee the inside leakproofness of hydraulic chuck mechanism more lastingly, can guarantee to stabilize the fuel feeding, also reduce the maintenance degree of difficulty of fuel feeding subassembly.
Drawings
Fig. 1 is a schematic structural diagram of an oil supply assembly of a self-centering clamping device for an annular workpiece according to an embodiment of the utility model;
FIG. 2 is a front view of an oil supply assembly of the self-centering clamping device for the annular workpiece according to the embodiment of the utility model;
FIG. 3 is a left side view of an oil supply assembly of the self-centering clamping device for the annular workpiece according to the embodiment of the utility model;
FIG. 4 is a top view of an oil supply assembly of the self-centering clamping device for the annular workpiece according to the embodiment of the utility model;
FIG. 5 is a schematic structural view of a self-centering clamping device for an annular workpiece according to an embodiment of the present invention;
description of reference numerals:
1. a base; 2. a turntable body; 3. a hydraulic chuck mechanism; 4. an oil supply support; 5. a hydraulic cylinder; 6. a first integrated block; 7. a first oil inlet connecting pipe; 8. a first oil outlet connecting pipe; 9. a hydraulic station; 10. a second integrated block; 11. a second oil inlet connecting pipe; 12. a second oil outlet connecting pipe; 13. hydraulic locking; 14. a third oil inlet connecting pipe; 15. a third oil outlet connecting pipe; 16. a quick connector; 17. a jack; 18. a slide rail; 19. a proximity switch.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Example 1
Referring to fig. 1 to 5, an oil supply assembly of a self-centering clamping device for a circular workpiece includes:
a base 1;
the rotary table comprises a rotary table body 2, wherein the rotary table body 2 is connected to a base 1;
the hydraulic chuck mechanism 3 is connected to the upper part of the rotary table body 2;
the oil supply support 4 is connected to the base;
the cylinder body of the hydraulic cylinder 5 is connected to the oil supply support 4, and the moving direction of the hydraulic cylinder 5 is the radial direction of the rotary table body 2;
a first manifold block 6, the first manifold block 6 being connected to a piston rod of the hydraulic cylinder 5;
the oil outlet end of the first oil inlet connecting pipe 7 is connected to the first integrated block 6;
the oil inlet end of the first oil outlet connecting pipe 8 is connected to the first integrated block 6;
the oil inlet end of the first oil inlet connecting pipe 7 is connected with the hydraulic station 9, and the oil outlet end of the first oil outlet connecting pipe 8 is connected with the hydraulic station 9;
the second integrated block 10 is connected to the turntable body 2, so that when the turntable body 2 rotates to a certain angle, the first integrated block 6 is over against the second integrated block 10, the oil outlet end of the first oil inlet connecting pipe 7 is aligned with the oil inlet end of the second oil inlet connecting pipe 11, and the oil inlet end of the first oil outlet connecting pipe 8 is aligned with the oil outlet end of the second oil inlet connecting pipe 11;
the oil inlet end of the second oil inlet connecting pipe 11 is connected to the second integrated block 10, and the oil inlet end of the second oil inlet connecting pipe 11 and the oil outlet end of the first oil inlet connecting pipe 7 are located at the same height;
the oil outlet end of the second oil outlet connecting pipe 12 is positioned at the same height as the oil inlet end of the first oil outlet connecting pipe 8;
the oil outlet end of the second oil inlet connecting pipe 11 is connected to the hydraulic lock 13, and the oil inlet end of the second oil outlet connecting pipe 12 is connected to the hydraulic lock 13;
the oil inlet end of the third oil inlet connecting pipe 14 is connected to the hydraulic lock 13, and the oil outlet end of the third oil inlet connecting pipe 14 is connected to the turntable body 2;
and the oil outlet end of the third oil outlet connecting pipe 15 is connected to the hydraulic lock 13, and the oil inlet end of the third oil outlet connecting pipe 15 is connected to the turntable body 2.
In the above structure, the requirement for the rotation precision and the clamping precision of the turntable body 2 is extremely high, so a grating ruler is installed inside the turntable body 2, in the prior art, the oil supply pipeline of the hydraulic chuck mechanism 3 is directly connected to the hydraulic chuck, in this way, a rotary joint needs to be matched for use at one time to ensure that the oil can be stably supplied when the hydraulic chuck mechanism 3 rotates along with the turntable body 2, but in order to improve the clamping precision, the requirement for the sealing performance of the rotary joint is extremely high, but the sealing element is easy to age after long-time use, the oil supply assembly is arranged inside the clamping device, the difficulty for overhauling and replacing the sealing element is extremely high, if a rolling support mechanism of an auxiliary support is used, the difficulty for overhauling and replacing the sealing element is further increased, therefore, the utility model is matched with the structure of the clamping device to improve the structure and the connection relation of the oil supply assembly, only when the rotary table body 2 stops rotating, the first integrated block 6 is butted with the second integrated block 10 by the movement of the hydraulic cylinder 5, so that the hydraulic station 9 and the hydraulic chuck mechanism 3 are communicated, the oil supply pipeline is communicated and locked by the hydraulic lock 13 connected at a specific position, and the circular workpiece is clamped or loosened, and in the rotating process of the rotary table body 2, the first integrated block 6 is separated from the second integrated block 10, namely, the hydraulic station 9 is not communicated with the hydraulic chuck mechanism 3, so that a rotary joint structure is not required to be arranged in the hydraulic chuck mechanism 3, and the sealing performance in the hydraulic chuck mechanism 3 can be ensured more durably.
Example 2
The oil supply assembly of the self-centering clamping device for the ring workpiece in embodiment 1, wherein the oil inlet end of the first oil inlet connecting pipe 7 and the oil inlet end of the first oil outlet connecting pipe 8 are both provided with a quick connector 16, the quick connector 16 protrudes out of the plane of the first integrated block 6 facing the turntable body 2, the oil inlet end of the second oil inlet connecting pipe 11 and the oil outlet end of the second oil outlet connecting pipe 12 are both provided with a jack 17 matched with the quick connector 16, so that the hydraulic cylinder 5 moves to drive the quick connector 16 to be in butt joint with or separated from the jack 17.
Example 3
The oil supply assembly of the self-centering clamping device for the annular workpiece, disclosed by embodiment 1, wherein the oil supply support 4 is provided with a slide rail 18 parallel to the hydraulic cylinder 5, and the first integrated block 6 is slidably connected with the slide rail 18.
Example 4
The oil supply assembly of the self-centering clamping device for the circular workpieces, according to embodiment 3, wherein the proximity switches 19 are arranged on one side of the slide rail 18, and one proximity switch 19 may be arranged at the beginning and the end of the slide rail 18.
Above structure can cooperate PLC to use, connects PLC respectively through proximity switch 19 and pneumatic cylinder 5, utilizes proximity switch 19 response slider's sliding position to control pneumatic cylinder 5 removes.
Example 5
The oil supply assembly of the self-centering clamping device for the circular workpieces in embodiment 2 is characterized in that a sealing ring is arranged on the inner wall of the insertion hole 17.
Example 6
A method for clamping a circular workpiece by a self-centering clamping device of a numerical control rotary table of the circular workpiece comprises the following steps:
step 1: adjusting the connecting position of the first sliding seat on the first guide rail to ensure that the vertical distance between each first sliding seat and the axis of the turntable body 2 is the same, adjusting the connecting position of the clamping seat body on the first sliding seat to ensure that the vertical distance between each clamping seat body and the axis of the turntable body 2 is the same, and fastening the clamping seat body and the first sliding seat by a first fastening piece;
step 2: controlling the hydraulic cylinder 5 to move, so that the oil outlet end of the first oil inlet connecting pipe 7 is in butt joint with the oil inlet end of the second oil inlet connecting pipe 11, and the oil inlet end of the first oil outlet connecting pipe 8 is in butt joint with the oil outlet end of the second oil outlet connecting pipe 12;
step 3: erecting the circular workpiece on the supporting part of each clamping seat body, controlling a hydraulic station 9 to supply oil to the chuck body or controlling a hydraulic chuck to discharge oil to the hydraulic station 9, and controlling the oil inlet or oil discharge locking of a hydraulic lock 13 to enable each sliding block of the chuck body to synchronously move, so that the clamping part of the clamping seat body clamps the inner circumference or the outer circumference of the circular workpiece;
and 4, step 4: controlling the oil inlet and outlet directions of the hydraulic lock 13 to be locked, and controlling the hydraulic cylinder 5 to move, so that the oil outlet end of the first oil inlet connecting pipe 7 is separated from butt joint with the oil inlet end of the second oil inlet connecting pipe 11, and the oil inlet end of the first oil outlet connecting pipe 8 is separated from butt joint with the oil outlet end of the second oil outlet connecting pipe 12;
and 5: controlling the rotary table body 2 to rotate, and processing a circular workpiece by using a numerical control machine;
and 6: after the numerical control machine tool finishes processing, controlling the rotary table body 2 to rotate to the position where the first integrated block 6 is opposite to the second integrated block 10, and stopping rotating;
and 7: controlling the hydraulic cylinder 5 to move, so that the oil outlet end of the first oil inlet connecting pipe 7 is in butt joint with the oil inlet end of the second oil inlet connecting pipe 11, and the oil inlet end of the first oil outlet connecting pipe 8 is in butt joint with the oil outlet end of the second oil outlet connecting pipe 12;
and 8: and controlling the oil inlet or outlet direction of the hydraulic lock 13 to be opened, so that the sliding blocks of the chuck body synchronously move, the clamping part of the clamping seat body loosens the clamping of the inner circumference or the outer circumference of the circular workpiece, and the circular workpiece is taken down.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (5)
1. The oil supply assembly of self-centering clamping device for circular workpieces comprises:
a base;
the rotary table body is connected to the base;
the hydraulic chuck mechanism is connected to the upper part of the rotary table body;
the oil supply support is connected to the base;
the cylinder body of the hydraulic cylinder is connected with the oil supply support, and the moving direction of the hydraulic cylinder is the radial direction of the rotary table body;
the first integrated block is connected to a piston rod of the hydraulic cylinder;
the oil outlet end of the first oil inlet connecting pipe is connected to the first integrated block;
the oil inlet end of the first oil outlet connecting pipe is connected to the first integrated block;
the oil inlet end of the first oil inlet connecting pipe is connected with the hydraulic station, and the oil outlet end of the first oil outlet connecting pipe is connected with the hydraulic station;
the second integrated block is connected to the rotary table body, when the rotary table body rotates to a certain angle, the first integrated block is over against the second integrated block, the oil outlet end of the first oil inlet connecting pipe is aligned to the oil inlet end of the second oil inlet connecting pipe, and the oil inlet end of the first oil outlet connecting pipe is aligned to the oil outlet end of the second oil inlet connecting pipe;
the oil inlet end of the second oil inlet connecting pipe is connected to the second integrated block, and the oil inlet end of the second oil inlet connecting pipe and the oil outlet end of the first oil inlet connecting pipe are located at the same height;
the oil outlet end of the second oil outlet connecting pipe and the oil inlet end of the first oil outlet connecting pipe are positioned at the same height;
the oil outlet end of the second oil inlet connecting pipe is connected to the hydraulic lock, and the oil inlet end of the second oil outlet connecting pipe is connected to the hydraulic lock;
the oil inlet end of the third oil inlet connecting pipe is connected to the hydraulic lock, and the oil outlet end of the third oil inlet connecting pipe is connected to the turntable body;
and the oil outlet end of the third oil outlet connecting pipe is connected to the hydraulic lock, and the oil inlet end of the third oil outlet connecting pipe is connected to the turntable body.
2. The oil supply assembly of the self-centering clamping device for the ring-shaped workpiece according to claim 1, wherein the oil inlet end of the first oil inlet connecting pipe and the oil inlet end of the first oil outlet connecting pipe are both provided with a quick connector, the quick connector protrudes out of the plane of the first integrated block facing the turntable body, and the oil inlet end of the second oil inlet connecting pipe and the oil outlet end of the second oil outlet connecting pipe are both provided with a jack matched with the quick connector, so that the hydraulic cylinder moves to drive the quick connector to be in butt joint with or separated from the jack.
3. The oil supply assembly of the self-centering clamping device for the circular workpieces according to claim 1, wherein the oil supply support is provided with a slide rail parallel to the hydraulic cylinder, and the first integrated block is slidably connected with the slide rail.
4. The oil supply assembly of the self-centering clamping device for the circular workpieces as claimed in claim 3, wherein a proximity switch is arranged on one side of the slide rail.
5. The oil supply assembly of the self-centering clamping device for the circular workpieces as claimed in claim 2, wherein the inner wall of the insertion hole is provided with a sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220623409.9U CN216938479U (en) | 2022-03-21 | 2022-03-21 | Oil supply assembly of self-centering clamping device for circular workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220623409.9U CN216938479U (en) | 2022-03-21 | 2022-03-21 | Oil supply assembly of self-centering clamping device for circular workpieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216938479U true CN216938479U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220623409.9U Active CN216938479U (en) | 2022-03-21 | 2022-03-21 | Oil supply assembly of self-centering clamping device for circular workpieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216938479U (en) |
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2022
- 2022-03-21 CN CN202220623409.9U patent/CN216938479U/en active Active
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