CN212286717U - Clamp for processing eccentric shaft - Google Patents
Clamp for processing eccentric shaft Download PDFInfo
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- CN212286717U CN212286717U CN202021690334.3U CN202021690334U CN212286717U CN 212286717 U CN212286717 U CN 212286717U CN 202021690334 U CN202021690334 U CN 202021690334U CN 212286717 U CN212286717 U CN 212286717U
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Abstract
The application discloses a clamp for machining an eccentric shaft, which relates to the technical field of machine tool clamps and comprises a machine tool connecting disc, an eccentric sleeve and a connecting sleeve, wherein the machine tool connecting disc is provided with a first inner cavity; the eccentric sleeve is provided with a second inner cavity, the axis of the second inner cavity and the axis of the machine tool connecting disc are not on the same straight line, and the eccentric sleeve is connected with the machine tool connecting disc; the connecting sleeve is arranged in the first inner cavity and the eccentric sleeve; and the clamping device is arranged in the second inner cavity, and the axis of the clamping device is superposed with the axis of the second inner cavity. The clamping device is used for clamping an optical axis to be processed, and external teeth are arranged at one end of the optical axis to be processed. The clamping device can be detachably replaced according to the processing requirements of workpieces with different sizes; and one end of the optical axis to be processed into the eccentric shaft is provided with external teeth. Therefore, the multi-angle precise angular positioning device can achieve multi-angle precise angular positioning, is good in universality and reliable in clamping.
Description
Technical Field
The application relates to the technical field of machine tool fixtures, in particular to a fixture for machining eccentric shafts.
Background
The workpiece with the excircle parallel to the axis of the excircle and not coincident with the axis of the excircle is called an eccentric shaft. The eccentric shaft is usually fixed on the rotating shaft of the motor through an eccentric hole, and when the motor is started, the eccentric shaft makes a cam motion. Therefore, the composite material is widely applied to automobiles, engines, pumps and the like.
Therefore, there is a great demand for a clamp for clamping an eccentric shaft and achieving precise angular positioning in the market. However, in the prior art, the eccentric shaft clamp used has the following disadvantages: multi-angle accurate angular positioning cannot be realized; the universality is poor; the workpiece to be processed into the eccentric shaft cannot be clamped and fixed.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a processing anchor clamps for eccentric shaft, it can press from both sides the not unidimensional optical axis of clamp for process the eccentric shaft with the optical axis.
The embodiment of the application is realized as follows:
a clamp for processing an eccentric shaft comprises a machine tool connecting disc, an eccentric sleeve and a connecting sleeve, wherein the machine tool connecting disc is provided with a first inner cavity; the eccentric sleeve is provided with a second inner cavity, the axis of the second inner cavity is not on the same straight line with the axis of the machine tool connecting disc, and the eccentric sleeve is connected with the machine tool connecting disc; the connecting sleeve is arranged in the first inner cavity and the eccentric sleeve; and the clamping device is arranged in the second inner cavity, and the axis of the clamping device is superposed with the axis of the second inner cavity. The clamping device is used for clamping an optical axis to be processed.
In one embodiment, the machine tool further comprises a positioning bracket and a positioning top block, wherein the positioning bracket is connected with the machine tool connecting disc; the positioning bracket is provided with a first hole, and the positioning ejector block is arranged in the first hole.
In one embodiment, a first groove is formed in the machine tool connecting disc, and the positioning bracket is connected to the first groove.
In an embodiment, the connecting sleeve is provided with two through holes, and the positioning bracket is inserted into the two through holes.
In one embodiment, a first threaded hole is formed in the positioning top block; and a second threaded hole is formed in the positioning bracket, a screw is arranged in the second threaded hole, and the positioning bracket is fixedly connected with the positioning ejection block through the matching of the screw and the first threaded hole.
In one embodiment, a first boss is arranged on the inner wall of the connecting sleeve;
and a second groove is formed in the outer wall of the clamping device, and the connecting sleeve is connected with the clamping device through the matching of the first boss and the second groove.
In one embodiment, the connecting sleeve is provided with a cylindrical sleeve, the axis of the cylindrical sleeve is coincident with the axis of the connecting sleeve, and the cylindrical sleeve is internally provided with threads.
In an embodiment, a second hole is formed in the outer wall of the eccentric sleeve, a third hole is formed in the outer wall of the clamping device, and a locking screw is arranged in the second hole and the third hole and used for positioning.
In an embodiment, an external tooth is disposed on one end of the optical axis to be processed.
In an embodiment, a positioning ball is disposed in the second hole and the third hole, the positioning ball is inserted into the external teeth, and the machining eccentric shaft is circumferentially positioned by the locking screw and the positioning ball.
In one embodiment, a spring is disposed in the second hole and the third hole, and the spring is disposed between the locking screw and the positioning ball.
Compared with the prior art, the beneficial effect of this application is:
the application discloses processing anchor clamps for eccentric shaft comprises the clamping device who is used for the clamping that is used for the location kicking block, is used for the lathe connection pad of connecting and is used for the centre gripping, can press from both sides the not unidimensional optical axis of clamp for process the optical axis into the eccentric shaft. Therefore, the fixture for machining the eccentric shaft has the advantages of being capable of achieving multi-angle accurate angular positioning, good in universality and reliable in clamping.
The clamping device can be detached and is convenient to replace.
One of the optical axis of this application serves and is equipped with the external tooth, has locking screw, spring and location ball on the processing anchor clamps for the eccentric shaft of this application, and the location ball can insert in the external tooth of the optical axis of treating processing to can treat that the optical axis of processing carries out circumference location.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is an exploded view of a jig for machining an eccentric shaft according to an embodiment of the present application.
Fig. 2 is a sectional view of a jig for processing an eccentric shaft according to an embodiment of the present application.
Fig. 3 is a cross-sectional view taken in the direction of a-a of fig. 2, according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a fixture for machining an eccentric shaft according to an embodiment of the present application.
Icon: 1-processing a clamp for an eccentric shaft; 2-machine tool connecting disc; 21-a first lumen; 22-a first groove; 221-a third threaded hole; 3-connecting a sleeve; 31-a through hole; 32-cylindrical sleeve; 321-screw thread; 33-a first boss; 4-positioning the bracket; 41-a first hole; 42-a second threaded hole; 5, positioning a top block; 51-a first threaded hole; 6-eccentric sleeve; 61-a second lumen; 62-a second aperture; 621-a thread segment; 63-flange plate; 7-a clamping device; 71-a third aperture; 72-locking screws; 73-a spring; 74-a positioning ball; 75-a second groove; 8-optical axis; 81-outer teeth.
Detailed Description
The terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of indicating or implying relative importance, and do not denote any order or order.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.
In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.
The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.
Fig. 1 is an exploded view of a fixture for machining an eccentric shaft according to an embodiment of the present application. An external tooth 81 is provided on one end of the optical axis 8 to be processed.
A clamp 1 for processing an eccentric shaft comprises a machine tool connecting disc 2, a connecting sleeve 3, an eccentric sleeve 6 and a clamping device 7. Wherein, the machine tool connecting disc 2 is provided with a first inner cavity 21; the eccentric sleeve 6 is provided with a second inner cavity 61, and the eccentric sleeve 6 is connected with the machine tool connecting disc 2; the connecting sleeve 3 is arranged in a first inner cavity 21 of the machine tool connecting disc 2 and a second inner cavity 61 of the eccentric sleeve 6; a clamping device 7 is arranged in the second interior 61, the clamping device 7 being used for clamping the optical axis 8 to be machined.
The clamping device 7 is of a hydraulic type, an expanding sleeve type or a tensioning type, and in the embodiment, the clamping device 7 is of a triangular chuck type.
In an operation process, an operator connects the machine tool connecting disc 2 to a common machine tool, the connecting sleeve 3 is connected with a machine tool pull rod through threads, the machine tool is started, the pull rod is pulled, the pull rod drives the connecting sleeve 3 to move towards the machine tool, and therefore the clamping device 7 is driven to move, and the optical axis 8 to be machined is clamped tightly by the clamping device 7. The optical axis 8 can be machined as an eccentric axis by a conventional machine tool.
Therefore, the fixture 1 for machining the eccentric shaft has the advantages of being capable of achieving multi-angle accurate angular positioning, good in universality and reliable in clamping.
The utility model provides a processing anchor clamps 1 for eccentric shaft, still includes locating bracket 4 and location kicking block 5, and locating bracket 4 has first hole 41, and locating bracket 4 locates in the first inner chamber 21 of machine tool connection pad 2, and location kicking block 5 locates in first hole 41.
Wherein, a first threaded hole 51 is arranged on the positioning top block 5; and a second threaded hole 42 is formed in the positioning bracket 4, a screw is arranged in the second threaded hole 42, and the positioning bracket 4 is fixedly connected with the positioning ejector block 5 through the matching of the screw and the first threaded hole 51.
In an operation process, an operator inserts the end of the optical axis 8 to be machined, which has the external teeth 81, into the holding device 7, and the optical axis 8 to be machined is inserted into a predetermined position by being restricted by the positioning top block 5.
Please refer to fig. 2, which is a schematic structural diagram of a fixture 1 for processing an eccentric shaft according to an embodiment of the present application. Please refer to fig. 3, which is a cross-sectional view taken along the direction a-a in fig. 2 according to an embodiment of the present disclosure. The eccentric sleeve 6 is provided with a second inner cavity 61, the axis of the second inner cavity 61 is not on the same straight line with the axis of the machine tool connecting disc 2, the clamping device 7 is arranged in the second inner cavity 61, and the axis of the clamping device 7 is overlapped with the axis of the second inner cavity 61. Since the eccentric sleeve 6 is provided with the second inner cavity 61, the axis of the second inner cavity 61 is not on the same straight line with the axis of the machine connecting disc 2, so that the eccentric sleeve can be used for machining an eccentric shaft.
When eccentric shafts of different sizes need to be machined, the appropriate eccentric sleeve 6 and clamping device 7 can be selected according to the eccentric size and the diameter of the optical axis 8 to be machined. However, since the size of the lathe that is applied to the jig 1 for processing an eccentric shaft according to the present invention is not changed, the size of the machine tool connecting plate 2 is 80mm to 400mm in diameter, and thus the size of the eccentric sleeve 6 should also be 80mm to 400mm in diameter, an appropriate size of the eccentric sleeve 6 is selected, an eccentric size of 0.01mm to 50mm can be realized, and finally an appropriate clamping device 7 is selected according to the size of the eccentric shaft.
The application discloses processing anchor clamps 1 for eccentric shaft is equipped with two through holes 31 on the nipple 3, and location bracket 4 alternates in two through holes 31. In one embodiment, the positioning bracket 4 may be made of rubber or the like.
One end of the machine tool connecting disc 2 is provided with a first groove 22, and the positioning bracket 4 is connected to the first groove 22 through a snap connection and the like, so that the machine tool connecting disc 2 is connected. In this embodiment, the positioning bracket 4 is connected to the machine tool connection plate 2 by a screw.
The outer wall of the eccentric sleeve 6 is provided with a second hole 62, a threaded section 621 is arranged in the second hole 62, the outer wall of the clamping device 7 is provided with a third hole 71, the axis of the second hole 62 is overlapped with the axis of the third hole 71, a locking screw 72, a spring 73 and a positioning ball 74 are arranged in the second hole 62 and the third hole 71, and the spring 73 is arranged between the locking screw 72 and the positioning ball 74. The detent ball 74, spring 73 and locking screw 72 are connected together.
In an operation process, an operator puts the positioning ball 74, the spring 73 and the locking screw 72 into the second hole 62 of the eccentric sleeve 6 and the third hole 71 of the clamping device 7, at this time, the axis of the second hole 62 coincides with the axis of the third hole 71, then tightens the locking screw 72 to compress the spring 73, and the spring 73 pushes the positioning ball 74 to be inserted into the external teeth 81 of the optical axis 8 to be processed, so as to circumferentially position the optical axis 8 to be processed.
The detent ball 74, spring 73 and locking screw 72 may be separate or may be attached together. Wherein the locking screw 72 may be a locking screw.
The connecting sleeve 3 is provided with a cylindrical sleeve 32, the axis of the cylindrical sleeve 32 is superposed with the axis of the connecting sleeve 3, and the cylindrical sleeve 32 is internally provided with a thread 321.
Be equipped with first boss 33 on the inner wall of nipple 3, clamping device 7 is the toper structure, is equipped with second recess 75 on the outer wall of the narrower one end of clamping device 7, and nipple 3 is connected with clamping device 7 through the cooperation of first boss 33 second recess 75.
Fig. 4 is a schematic structural diagram of a fixture 1 for processing an eccentric shaft according to an embodiment of the present application. The eccentric sleeve 6 is provided with a flange 63, the first groove 22 of the machine tool connecting disc 2 is provided with a plurality of third threaded holes 221, and the eccentric sleeve 6 is connected with the machine tool connecting disc 2 through the matching of the flange 63 and the third threaded holes 221.
It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A clamp for processing an eccentric shaft is characterized by comprising:
the machine tool connecting disc is provided with a first inner cavity;
the eccentric sleeve is provided with a second inner cavity, the axis of the second inner cavity is not on the same straight line with the axis of the machine tool connecting disc, and the eccentric sleeve is connected with the machine tool connecting disc;
the connecting sleeve is arranged in the first inner cavity and the eccentric sleeve; and
the clamping device is arranged in the second inner cavity, and the axis of the clamping device is superposed with the axis of the second inner cavity; the clamping device is used for clamping an optical axis to be processed.
2. The jig for processing an eccentric shaft according to claim 1, further comprising:
the positioning bracket is connected with the machine tool connecting disc;
the positioning bracket is provided with a first hole, and the positioning ejector block is arranged in the first hole.
3. The jig for machining eccentric shafts according to claim 2, wherein the machine tool connecting plate is provided with a first groove, and the positioning bracket is attached to the first groove.
4. The jig for machining eccentric shafts according to claim 3, wherein the adapter sleeve is provided with two through holes, and the positioning bracket is inserted into the two through holes.
5. The clamp for machining the eccentric shaft according to claim 4, wherein the positioning top block is provided with a first threaded hole;
and a second threaded hole is formed in the positioning bracket, a screw is arranged in the second threaded hole, and the positioning bracket is fixedly connected with the positioning ejection block through the matching of the screw and the first threaded hole.
6. The clamp for machining the eccentric shaft according to claim 1, wherein a first boss is provided on an inner wall of the adapter sleeve;
and a second groove is formed in the outer wall of the clamping device, and the connecting sleeve is connected with the clamping device through the matching of the first boss and the second groove.
7. The clamp for machining the eccentric shaft according to claim 1, wherein the adapter sleeve is provided with a cylindrical sleeve, an axis of the cylindrical sleeve is coincident with an axis of the adapter sleeve, and a thread is arranged inside the cylindrical sleeve.
8. The clamp for machining the eccentric shaft according to claim 1, wherein a second hole is formed in an outer wall of the eccentric sleeve, a third hole is formed in an outer wall of the clamping device, and a locking screw is provided in the second hole and the third hole for positioning.
9. The jig for machining eccentric shafts according to claim 8, wherein an outer tooth is provided on one end of the optical axis;
positioning balls are arranged in the second hole and the third hole and connected with the locking screw; the positioning ball is inserted into the outer teeth, and the machining eccentric shaft is circumferentially positioned through the locking screw and the positioning ball.
10. The clamp for machining an eccentric shaft according to claim 9, wherein a spring is provided in the second hole and the third hole, and the spring is provided between the locking screw and the positioning ball; the positioning ball is connected with the locking screw through the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021690334.3U CN212286717U (en) | 2020-08-13 | 2020-08-13 | Clamp for processing eccentric shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021690334.3U CN212286717U (en) | 2020-08-13 | 2020-08-13 | Clamp for processing eccentric shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212286717U true CN212286717U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021690334.3U Active CN212286717U (en) | 2020-08-13 | 2020-08-13 | Clamp for processing eccentric shaft |
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| CN (1) | CN212286717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774898A (en) * | 2020-08-13 | 2020-10-16 | 南京南传智能技术有限公司 | Fixtures for machining eccentric shafts |
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2020
- 2020-08-13 CN CN202021690334.3U patent/CN212286717U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774898A (en) * | 2020-08-13 | 2020-10-16 | 南京南传智能技术有限公司 | Fixtures for machining eccentric shafts |
| CN111774898B (en) * | 2020-08-13 | 2025-02-14 | 南京南传智能技术有限公司 | Jig for machining eccentric shaft |
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