CN111992749A - Convenient locking type three-jaw chuck for lathe - Google Patents
Convenient locking type three-jaw chuck for lathe Download PDFInfo
- Publication number
- CN111992749A CN111992749A CN202011004308.5A CN202011004308A CN111992749A CN 111992749 A CN111992749 A CN 111992749A CN 202011004308 A CN202011004308 A CN 202011004308A CN 111992749 A CN111992749 A CN 111992749A
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- China
- Prior art keywords
- drive plate
- plate
- jaw chuck
- disc body
- locking device
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- Pending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
A three-jaw chuck for a portable locking lathe, comprising: the driving plate is connected to the disc body in a floating mode; the disc body is provided with a limiting pressure plate for limiting the rotation angle of the drive plate, the drive plate is provided with pressure claws which are rotationally connected to the drive plate at equal intervals along the circumferential direction of the drive plate, each pressure claw is provided with a groove body, and the disc body is provided with transmission pins which are correspondingly inserted into the corresponding groove bodies one by one; the automatic locking device is arranged on the drive plate, and the disc body is provided with a positioning pin matched and locked with the automatic locking device. According to the invention, a certain floating amount of the driving plate is ensured, the high-speed rotation limits the deviation amplitude and the vibration amplitude of the driving plate caused by centrifugal force, so that the sliding is prevented, and the influence on the processing precision is reduced; the self-resetting locking device is arranged, so that the driving plate is self-locked, the pressing claw swings open, and loading and unloading are facilitated; and the pressing claw is tightly clamped with the workpiece through the rotating centrifugal force, so that higher processing precision is obtained, and the operation is convenient and fast.
Description
The technical field is as follows:
the invention relates to the technical field of three-jaw chucks, in particular to a convenient locking type three-jaw chuck for a lathe.
Background art:
the three-jaw chuck is a machine tool accessory which clamps and positions a workpiece by utilizing the radial movement of three movable jaws uniformly distributed on a chuck body, has the advantages of automatic centering, large clamping range, high clamping speed and the like, is the most common machine tool universal fixture, and is suitable for round material processing.
The conventional three-jaw chuck on a lathe is complex in structure and complex in operation, a gap between a processing drive plate and a chuck body is large, and clamping loosening and vibration can occur due to the fact that the chuck body deviates under the action of centrifugal force during high-speed rotation, so that the processing quality is influenced, and higher processing precision cannot be obtained.
The invention content is as follows:
in view of this, it is necessary to design a three-jaw chuck for a convenient locking lathe, which uses centrifugal force to clamp a workpiece by pressing jaws, so as to obtain high machining precision.
The utility model provides a three-jaw chuck is used to convenient locking formula lathe which characterized in that includes: the driving plate is connected to the disc body in a floating mode; wherein the content of the first and second substances,
the disc body is provided with a limiting pressure plate for limiting the rotation angle of the drive plate, the drive plate is provided with pressure claws which are rotationally connected to the drive plate at equal intervals along the circumferential direction of the drive plate, each pressure claw is provided with a groove body, and the disc body is provided with transmission pins which are correspondingly inserted into the corresponding groove bodies one by one;
the automatic locking device is characterized by further comprising a self-resetting locking device arranged on the driving plate, and a positioning pin matched and locked with the self-resetting locking device is arranged on the disc body.
Preferably, the disk body is connected with a positioning ball which supports the drive plate in a radial floating manner through a fastening screw.
Preferably, a spring for automatically clamping the drive plate is arranged on the disc body.
Preferably, the pressing claws are provided in three.
Preferably, the drive plate is provided with a positioning pin shaft which is rotatably connected with each pressing claw.
Preferably, a gasket is arranged at the joint of each pressing claw and the corresponding positioning pin shaft.
Preferably, each pressing claw is provided with an axial limiting screw rotating around the corresponding positioning pin shaft.
Preferably, the self-resetting locking device comprises: the drive plate is arranged on the base, the drive plate is arranged on the drive plate, the drive plate is.
Preferably, at least two positioning pins are arranged on the tray body.
Preferably, the limiting pressure plate is provided with an adjusting screw for adjusting a gap between the drive plate and the disc body.
According to the invention, a certain floating amount of the driving plate is ensured, the high-speed rotation limits the deviation amplitude and the vibration amplitude of the driving plate caused by centrifugal force, so that the sliding is prevented, and the influence on the processing precision is reduced; the self-resetting locking device is arranged, so that the driving plate is self-locked, the pressing claw swings open, and loading and unloading are facilitated; and the pressing claw is tightly clamped with the workpiece through the rotating centrifugal force, so that higher processing precision is obtained, and the operation is convenient and fast.
Description of the drawings:
fig. 1 is a schematic structural view of a three-jaw chuck for a convenient locking lathe according to the present invention;
fig. 2 is a side sectional view of a three-jaw chuck for a portable locking lathe according to the present invention.
In the drawing, a plate body-1, a positioning pin-2, a drive plate-3, a spring-4, a transmission pin-5, a pressing claw-6, a gasket-7, a pressing spring-8, a stud-9, a positioning steel ball-10, a limiting pressure plate-11, an adjusting screw-12, a positioning pin shaft-13, an axial limiting screw-14, a fastening screw-15 and a positioning ball-16.
The specific implementation mode is as follows:
as shown in fig. 1-2, a three-jaw chuck for a portable lock-type lathe, comprising: the disc body 1, the disc body 1 and a main shaft tip are matched for use, the spindle part processing device is suitable for processing shaft parts, a tip workpiece is centered and axially positioned, the driving plate 3 floats to clamp the outer circle of a workpiece blank to transmit torque, the workpiece processing is realized, and higher processing precision is obtained.
Meanwhile, in order to prevent the dial 3 from deviating due to centrifugal force during high-speed rotation, which may cause clamping loosening, vibration and affect processing quality, a positioning ball 16 for radially floating and supporting the dial 3 is connected to the dial body 1 through a fastening screw 15. The positioning balls 16 are radially centered to ensure that the drive plate 3 has a certain floating amount, and the drive plate 3 is limited by high-speed rotation to prevent slipping due to the offset amplitude and the vibration amplitude of centrifugal force, so that the influence on the machining precision is reduced.
The drive plate 3 is axially pressed on the plate body 1 by a limit pressure plate 11, so that a gap is ensured, and the rotation angle of the drive plate 3 is limited. Specifically, the limiting pressure plate 11 is provided with an adjusting screw 12 for adjusting the gap between the dial 3 and the disc body 1.
In addition, the drive plate 3 is provided with press claws 6 which are rotationally connected with the drive plate 3 at equal intervals along the circumferential direction, each press claw 6 is provided with a groove body, and the disc body 1 is provided with transmission pins 5 which are correspondingly inserted into the corresponding groove bodies one by one; the pressing claws 6 are arranged on the positioning pin shafts 13 of the drive plate 3, and the joint of each pressing claw 6 and the corresponding positioning pin shaft 13 is provided with a gasket 7. And each pressing claw 6 is provided with an axial limiting screw 14 rotating around the corresponding positioning pin shaft 13.
The groove body arranged on the pressure claw 6 is inserted into the transmission pin 5 on the disk body 1, and the transmission pin 5 rotates to stir the drive plate 3. The pressing claw 6 rotates around the driving plate 3 and slides along the transmission pin 5 to clamp the workpiece, and the transmission pin 5 drives the driving plate 3 to rotate. The pressing claw 6 is tightly clamped with the workpiece through the rotating centrifugal force, so that high machining precision is obtained, and the operation is convenient and fast.
Continuing to refer to fig. 1, a spring 4 for automatically clamping the dial 3 is arranged on the dial body 1, one end of the spring 4 is fixed on the dial body 1, and the other end is fixed on the dial 3, so that the dial 3 is automatically clamped.
In addition, the automatic locking device is arranged on the drive plate 3, the disc body 1 is provided with positioning pins 2 matched with the automatic locking device, the disc body 1 is provided with at least two positioning pins 2, and preferably two positioning pins 2 are oppositely arranged.
This self-resetting locking device includes: a stud 9 arranged on the drive plate 3, a pressing spring 8 arranged on the stud 9, and a positioning steel ball 10 matched with the positioning pin 2 arranged at the end part of the pressing spring 8.
The positioning pins 2 are fixed on the drive plate 3 body 1, when the drive plate 3 body 1 is loosened reversely, the stud 9, the spring 4 and the positioning steel ball on the drive plate 3 push the positioning steel ball into the space between the two positioning pins 2, so that the drive plate 3 is self-locked, the pressing claw 6 is swung open, and loading and unloading are convenient. The driving plate 3 is rotated reversely during clamping, so that the positioning steel ball is separated from the positioning pin 2, the driving plate 3 is pulled by the spring 4 to rotate to clamp a workpiece, and the pressing claw 6 clamps the workpiece through centrifugal force during rotation.
In the invention, a certain floating amount of the driving plate 3 is ensured, the high-speed rotation limits the offset amplitude and the vibration amplitude of the driving plate 3 caused by centrifugal force, so that the sliding is prevented, and the influence on the processing precision is reduced; the self-resetting locking device is arranged, so that the driving plate 3 is self-locked, the pressing claw 6 swings open, and loading and unloading are facilitated; and the pressing claw 6 is tightly clamped with the workpiece through the rotating centrifugal force, so that higher processing precision is obtained, and the operation is convenient and fast.
Claims (10)
1. The utility model provides a three-jaw chuck is used to convenient locking formula lathe which characterized in that includes: the driving plate is connected to the disc body in a floating mode; wherein the content of the first and second substances,
the disc body is provided with a limiting pressure plate for limiting the rotation angle of the drive plate, the drive plate is provided with pressure claws which are rotationally connected to the drive plate at equal intervals along the circumferential direction of the drive plate, each pressure claw is provided with a groove body, and the disc body is provided with transmission pins which are correspondingly inserted into the corresponding groove bodies one by one;
the automatic locking device is characterized by further comprising a self-resetting locking device arranged on the driving plate, and a positioning pin matched and locked with the self-resetting locking device is arranged on the disc body.
2. The three-jaw chuck for a portable locking lathe according to claim 1, wherein a positioning ball for supporting the driving plate in a radially floating manner is attached to the body by a fastening screw.
3. The three-jaw chuck for a portable locking lathe according to claim 1, wherein a spring for automatically clamping the driver plate is provided on the chuck body.
4. The three-jaw chuck for a portable locking lathe according to any one of claims 1 to 3, wherein three pressing jaws are provided.
5. The three-jaw chuck for a portable locking lathe according to claim 4, wherein a positioning pin is provided on the drive plate to be rotatably connected to each of the pressing jaws.
6. The three-jaw chuck for a portable locking lathe according to claim 5, wherein a gasket is disposed at the joint of each pressing jaw and the corresponding positioning pin shaft.
7. The three-jaw chuck for a portable locking lathe according to claim 5, wherein each of the pressing jaws is provided with an axial limit screw rotating around the corresponding positioning pin.
8. The three-jaw chuck for a portable locking lathe of claim 4, wherein the self-resetting locking device comprises: the drive plate is arranged on the base, the drive plate is arranged on the drive plate, the drive plate is.
9. The three-jaw chuck for a portable locking lathe of claim 8, wherein at least two of said locating pins are provided on said body.
10. The three-jaw chuck for a portable locking lathe according to claim 8, wherein an adjusting screw for adjusting a gap between the driving plate and the chuck body is provided on the limit pressure plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011004308.5A CN111992749A (en) | 2020-09-22 | 2020-09-22 | Convenient locking type three-jaw chuck for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011004308.5A CN111992749A (en) | 2020-09-22 | 2020-09-22 | Convenient locking type three-jaw chuck for lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111992749A true CN111992749A (en) | 2020-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011004308.5A Pending CN111992749A (en) | 2020-09-22 | 2020-09-22 | Convenient locking type three-jaw chuck for lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111992749A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388384A (en) * | 2020-12-11 | 2021-02-23 | 诸暨市更新工业设计工作室 | Numerical control machine tool with automatic chip removal function |
| CN116422978A (en) * | 2023-06-12 | 2023-07-14 | 季华实验室 | Pump wheel processing fixing device capable of eliminating vibration |
-
2020
- 2020-09-22 CN CN202011004308.5A patent/CN111992749A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388384A (en) * | 2020-12-11 | 2021-02-23 | 诸暨市更新工业设计工作室 | Numerical control machine tool with automatic chip removal function |
| CN112388384B (en) * | 2020-12-11 | 2022-04-22 | 温岭市箬横仪表机械配件厂 | Numerical control machine tool with automatic chip removal function |
| CN116422978A (en) * | 2023-06-12 | 2023-07-14 | 季华实验室 | Pump wheel processing fixing device capable of eliminating vibration |
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