CN219665156U - Quick-change structure of lathe three-jaw chuck - Google Patents
Quick-change structure of lathe three-jaw chuck Download PDFInfo
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- CN219665156U CN219665156U CN202320702088.6U CN202320702088U CN219665156U CN 219665156 U CN219665156 U CN 219665156U CN 202320702088 U CN202320702088 U CN 202320702088U CN 219665156 U CN219665156 U CN 219665156U
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- 210000000078 claw Anatomy 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a quick-change structure of a lathe three-jaw chuck, and aims to solve the technical problems that a mode of manually changing jaws can cause long debugging time of a unit and is not suitable for machining of flexible turning units of various and small batches. This quick change structure includes: the connecting piece is a cylinder, one end of the connecting piece is provided with a thread capable of being connected with a main shaft of a machine tool, the connecting piece is provided with a plurality of connecting grooves distributed along the axial direction of the connecting piece, and the connecting grooves are obliquely arranged relative to the axial direction of the connecting piece; the positioning piece is sleeved on the connecting piece, a vertical connecting hole is formed in the positioning piece, and the positioning piece can be connected with the hydraulic cylinder of the machine tool; the locking piece is sleeved on the positioning piece and used for being connected with the three-jaw chuck, and the inner wall of the locking piece is provided with a locking groove corresponding to the connecting hole; one end of the T-shaped piece is slidably arranged in the connecting groove, and the other end of the T-shaped piece penetrates through the connecting hole and is arranged in the locking groove. The quick-change structure has the advantage of being capable of quickly changing the hard claw and the soft claw.
Description
Technical Field
The utility model relates to a connecting structure of a three-jaw chuck, in particular to a quick-change structure of a lathe three-jaw chuck.
Background
The three-jaw chuck has a hard jaw and a soft jaw, and typically the switching between the hard jaw and the soft jaw is performed manually. The diameter range of the processing excircle of the part in the flexible turning unit with various varieties and small batches is 0-100 mm, and soft jaw chucks with different clamping diameters are required in the finish machining stage. The switching of the soft jaw chucks with different clamping diameters can cause longer debugging time of the unit by adopting a manual jaw replacement mode, and is obviously not suitable for processing of flexible turning units with various types and small batches.
Disclosure of Invention
Aiming at the technical problems that a mode of manually replacing claws can cause longer debugging time of a unit and is not suitable for processing of flexible turning units in various and small batches, the utility model provides a quick-replacing structure of a three-claw chuck of a lathe, which has the advantage of being capable of quickly replacing hard claws and soft claws.
The technical scheme of the utility model is as follows:
a quick change structure for a three-jaw chuck of a lathe, comprising:
the connecting piece is a cylinder, one end of the connecting piece is provided with a thread capable of being connected with a main shaft of a machine tool, the connecting piece is provided with a plurality of connecting grooves distributed along the axial direction of the connecting piece, and the connecting grooves are obliquely arranged relative to the axial line of the connecting piece;
the positioning piece is sleeved on the connecting piece, a vertical connecting hole is formed in the positioning piece, and the positioning piece can be connected with a hydraulic cylinder of a machine tool;
the locking piece is sleeved on the positioning piece and used for being connected with the three-jaw chuck, and the inner wall of the locking piece is provided with a locking groove corresponding to the connecting hole;
and one end of the T-shaped piece is slidably arranged in the connecting groove, and the other end of the T-shaped piece penetrates through the connecting hole and is arranged in the locking groove.
Optionally, the cross section of the connecting groove is T-shaped, and two sides of the T-shaped piece are outwards protruded and matched with the connecting groove.
Optionally, one end of the positioning piece is flush with one end of the connecting piece, the outer wall of the other end of the positioning piece is in a step shape, and the locking piece is sleeved on the outer side wall in the end of the positioning piece.
Optionally, the connecting hole passes through one end of the thin wall of the positioning piece.
Optionally, a connecting disc is arranged between the locking piece and the three-jaw chuck, and the connecting disc, the locking piece and the three-jaw chuck are connected through bolts.
Optionally, the number of the T-shaped pieces corresponds to the number of the connecting grooves, and the connecting pieces are provided with at least three connecting grooves.
Optionally, an end part of the T-shaped member far away from the connecting groove is of an inclined structure, and an inner wall of the locking groove on the locking member is of a corresponding inclined structure.
Optionally, the outer side surface of one end of the positioning piece is an inclined surface, and the inner wall of the locking piece matched with the positioning piece is also an inclined surface.
Compared with the prior art, the utility model has the beneficial effects that:
firstly, the connecting piece is fixedly connected with a main shaft of a machine tool through threads, then the connecting piece is connected with the T-shaped piece through a connecting groove arranged on the connecting piece, then the T-shaped piece is driven to slide on the connecting piece through a positioning piece arranged on a hydraulic cylinder of the machine tool, and then the end part of the T-shaped piece is propped against a locking groove on the inner wall of the locking piece, so that quick connection is realized. When the three-jaw chuck is replaced, the positioning piece and the T-shaped piece are driven to move through the hydraulic cylinder on the machine tool, so that the end part of the T-shaped piece is separated from the locking groove, and quick disassembly and replacement can be realized.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present utility model.
Reference numerals:
1. a three-jaw chuck; 2. a connecting disc; 3. a locking member; 4. a positioning piece; 5. a T-piece; 6. and a connecting piece.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships conventionally placed in use of the product of the present utility model, or orientations or positional relationships conventionally understood by those skilled in the art, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Examples
Referring to fig. 1, a quick-change structure of a lathe three-jaw chuck includes a connecting member 6, a positioning member 4, a locking member 3 and a T-shaped member 5. Specific:
the connecting piece 6 is of a hollow cylindrical structure, the inner side of one end of the connecting piece 6 is provided with a thread, the connecting piece 6 can be connected with the main shaft of the machine tool through the thread, and the connecting piece 6 is coaxially connected with the main shaft of the machine tool. The outer wall of the connecting piece 6 is provided with at least three connecting grooves, and the extending direction of the connecting grooves is consistent with the axial direction of the connecting piece 6. The connecting groove is arranged in an inclined way at the connecting piece 6, and the inclined direction of the connecting groove is as follows: one end of the connecting groove is close to the axis of the connecting piece 6, and the other end of the connecting groove is far away from the axis of the connecting piece 6. The end of the connecting piece 6 with the thread on the inner side is the end of the connecting groove far away from the axis.
The locating piece 4 is of an annular structure, and the locating piece 4 is sleeved outside the connecting piece 6. The positioning piece 4 is provided with a connecting hole perpendicular to the axis direction of the positioning piece, and the connecting hole corresponds to the connecting groove. The outer side of the positioning piece 4 is in a ladder shape, and a connecting hole on the positioning piece 4 penetrates through one end of the thin wall of the positioning piece. And the outer wall of the end of the positioning piece 4 is an inclined surface. The positioning piece 4 is connected with a hydraulic cylinder of the machine tool, and the hydraulic cylinder of the machine tool drives the positioning piece 4 and the connecting piece 6 to generate relative displacement.
The locking piece 3 is also annular and is sleeved on one end of the thin wall of the positioning piece 4. In addition, the inner side wall of the locking member 3 is an inclined surface and is matched with the inclined surface on the positioning member 4. The locking groove is formed in the inner wall of the locking piece 3, and after the locking piece 3 is sleeved on the positioning piece 4, the locking groove is buckled at the end part of the connecting hole. Different three-jaw chucks 1 can be mounted on the locking member 3.
The cross section of the connecting groove is T-shaped and is matched with one end of the T-shaped piece 5, the end of the T-shaped piece 5 is arranged in the connecting groove in a sliding way, and the other end of the T-shaped piece 5 penetrates through the connecting hole and is arranged in the locking groove.
The working principle of the embodiment is as follows: firstly, the connecting piece 6 is fixedly connected with a main shaft of a machine tool through threads, then the connecting piece is connected with the T-shaped piece 5 through a connecting groove arranged on the connecting piece 6, then the T-shaped piece 5 is driven to slide on the connecting piece 6 through a positioning piece 4 arranged on a hydraulic cylinder of the machine tool, and then the end part of the T-shaped piece 5 is propped against a locking groove on the inner wall of the locking piece 3, so that quick connection is realized. When the three-jaw chuck 1 is replaced, the positioning piece 4 and the T-shaped piece 5 are driven to move through a hydraulic cylinder on the machine tool, so that the end part of the T-shaped piece 5 is separated from the locking groove, and quick disassembly and replacement can be realized.
In one particular embodiment:
a connecting disc 2 is arranged between the locking piece 3 and the three-jaw chuck 1, and the connecting disc 2, the locking piece 3 and the three-jaw chuck 1 are detachably and fixedly connected through bolts.
In the present embodiment, the different three-jaw chucks 1 and the locking members 3 are connected by providing the connection pads 2.
In another specific embodiment:
the end face of one end of the T-shaped piece 5 far away from the connecting groove is an inclined face, and meanwhile, the inner wall of the locking groove at the inner side of the locking piece 3 is also an inclined face. Through the cooperation between the inclined plane, can avoid the location locking time, the unable problem that gets into the locking groove of T shape piece 5 tip appears.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (8)
1. The utility model provides a quick change structure of lathe three-jaw chuck which characterized in that includes:
the connecting piece is a cylinder, one end of the connecting piece is provided with a thread capable of being connected with a main shaft of a machine tool, the connecting piece is provided with a plurality of connecting grooves distributed along the axial direction of the connecting piece, and the connecting grooves are obliquely arranged relative to the axial line of the connecting piece;
the positioning piece is sleeved on the connecting piece, a vertical connecting hole is formed in the positioning piece, and the positioning piece can be connected with a hydraulic cylinder of a machine tool;
the locking piece is sleeved on the positioning piece and used for being connected with the three-jaw chuck, and the inner wall of the locking piece is provided with a locking groove corresponding to the connecting hole;
and one end of the T-shaped piece is slidably arranged in the connecting groove, and the other end of the T-shaped piece penetrates through the connecting hole and is arranged in the locking groove.
2. The quick-change structure of a lathe three-jaw chuck according to claim 1, wherein,
the cross section of the connecting groove is T-shaped, and two sides of the T-shaped piece are outwards protruded and matched with the connecting groove.
3. The quick-change structure of a lathe three-jaw chuck according to claim 1, wherein,
one end of the locating piece is flush with one end of the connecting piece, the outer wall of the other end of the locating piece is stepped, and the locking piece is sleeved on the outer side wall in the end of the locating piece.
4. The quick-change structure of a lathe three-jaw chuck according to claim 3, wherein,
the connecting hole penetrates through one end of the thin wall of the locating piece.
5. The quick-change structure of a lathe three-jaw chuck according to claim 1, wherein,
a connecting disc is arranged between the locking piece and the three-jaw chuck, and the connecting disc, the locking piece and the three-jaw chuck are connected through bolts.
6. The quick-change structure of a lathe three-jaw chuck according to claim 1, wherein,
the number of the T-shaped pieces corresponds to the number of the connecting grooves, and at least three connecting grooves are formed in the connecting pieces.
7. The quick-change structure of a lathe three-jaw chuck according to claim 1, wherein,
the end part of one end of the T-shaped piece far away from the connecting groove is of an inclined structure, and the inner wall of the locking groove on the locking piece is of a corresponding inclined structure.
8. The quick-change structure of a lathe three-jaw chuck according to claim 1, wherein,
the outer side surface of one end of the positioning piece is an inclined surface, and the inner wall of the locking piece matched with the positioning piece is also an inclined surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223554425 | 2022-12-30 | ||
| CN2022235544256 | 2022-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219665156U true CN219665156U (en) | 2023-09-12 |
Family
ID=87925196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320702088.6U Active CN219665156U (en) | 2022-12-30 | 2023-04-03 | Quick-change structure of lathe three-jaw chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219665156U (en) |
-
2023
- 2023-04-03 CN CN202320702088.6U patent/CN219665156U/en active Active
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