CN210231567U - Compensation type power chuck - Google Patents
Compensation type power chuck Download PDFInfo
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- CN210231567U CN210231567U CN201921052682.5U CN201921052682U CN210231567U CN 210231567 U CN210231567 U CN 210231567U CN 201921052682 U CN201921052682 U CN 201921052682U CN 210231567 U CN210231567 U CN 210231567U
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Abstract
The utility model discloses a compensation type power chuck, which comprises a chuck body, wherein an installation cavity with an opening at the left end is arranged in the chuck body, an installation hole is arranged in the chuck body, a positioning shaft is arranged in the installation hole, and a pull disc is arranged in the installation cavity; a plurality of slotted holes are formed in the disc body, clamping blocks are arranged in the slotted holes through rotating shafts, the left ends of the clamping blocks are connected with the pull disc, and the right ends of the clamping blocks extend out of the slotted holes and are provided with clamping jaws for clamping workpieces; the pull disc is provided with a pull rod for driving the pull disc to slide left and right along the positioning shaft; the side surface of the clamping block, which is far away from the pull disc, is provided with a spring hole, and the spring hole is close to the left end of the clamping block; a threaded hole is formed in the tray body, an adjusting bolt is installed in the threaded hole, and a first spring is arranged in the spring hole; the compensation type power chuck can realize the clamping of a workpiece, can also play a role in compensating and clamping the workpiece when the chuck rotates, and ensures the coaxiality of the workpiece.
Description
Technical Field
The utility model relates to a chuck technical field specifically indicates a compensation type power chuck.
Background
Chucks are mechanical devices used to clamp workpieces on machine tools. The machine tool accessory clamps and positions a workpiece by utilizing the radial movement of movable clamping jaws uniformly distributed on a chuck body. The chuck generally comprises a chuck body, a movable jaw and a jaw driving mechanism. When an existing chuck is used for clamping shaft workpieces, clamping jaws are easy to tilt, the shaft workpieces are pushed away from the center for positioning, the shaft workpieces can be bent, the shaft workpieces are cast very much because the outer surfaces of the shaft workpieces are not treated, the clamping jaws of the existing three-jaw chuck cannot be completely attached to the surfaces of the shaft workpieces, and in addition, the shaft workpieces are loosened along with the rotation of the chuck and the contact of a machining tool, so that the machining precision is seriously affected.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a compensation type power chuck can realize pressing from both sides of work piece tightly, can also play the tight function of compensation clamp to the work piece when the chuck rotates, has guaranteed the axiality of work piece.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a compensation type power chuck comprises a chuck body, wherein an installation cavity with an opening at the left end is formed in the chuck body, an installation hole communicated with the installation cavity is formed in the center of the inside of the chuck body, a positioning shaft with the left end extending into the installation cavity is installed in the installation hole, and a pull disc connected to the positioning shaft in a sliding mode is arranged in the installation cavity; a plurality of slotted holes communicated with the mounting cavity are formed in the disc body around the circumference of the mounting hole, clamping blocks are arranged in the slotted holes through rotating shafts, the left ends of the clamping blocks are connected with the pull disc, and the right ends of the clamping blocks extend out of the slotted holes and are provided with clamping jaws for clamping workpieces; the pull disc is provided with a pull rod for driving the pull disc to slide left and right along the positioning shaft; a compensation gap is reserved between the side face of the clamping block far away from the pull disc and the inner side wall of the slotted hole; the side surface of the clamping block, which is far away from the pull disc, is provided with a spring hole, and the spring hole is close to the left end of the clamping block; the disc body is provided with a threaded hole coaxial with the spring hole, an adjusting bolt is installed in the threaded hole, a first spring used for forcing the left end of the clamping block to be pressed on the pull disc is arranged in the spring hole, one end of the first spring is abutted to the adjusting bolt, and the other end of the first spring is abutted to the bottom of the spring hole.
Through the technical scheme, when the compensation type power chuck is used, a workpiece is placed in the clamping jaws, the pull rod pulls the pull disc to move leftwards, the pull disc drives the clamping block to rotate around the rotating shaft when moving leftwards, the left end of the clamping block moves in the direction away from the pull rod, and the right end drives the clamping jaws to clamp the workpiece; when the chuck rotates, the left end of the clamping block moves in the direction away from the pull rod under the action of centrifugal force and compresses the first spring, so that the right end of the clamping block drives the clamping jaw to clamp a workpiece more tightly, and the effect of compensating clamping force is achieved; in addition, the first spring is arranged, so that the clamping block can rotate around the rotating shaft more stably, the pull disc is driven to move rightwards through the pull rod when the workpiece is loosened, and the clamping block rotates reversely under the action of the first spring to loosen the clamped workpiece.
In a further technical scheme, a first inclined plane is arranged on the side face, close to a pull disc, of each clamping block, and a second inclined plane matched with the first inclined plane is arranged on the pull disc; the clamping block is driven to rotate around the rotating shaft through the matching of the second inclined surface and the first inclined surface when the pull disc moves leftwards.
In a further technical scheme, a flange used for preventing the pull disc from being separated from the installation cavity is installed at the opening at the left end of the installation cavity on the disc body.
In a further technical scheme, a locking nut is arranged on the pull rod; this arrangement enables the pull rod to be more stable.
In a further technical scheme, a positioning ejector rod is installed in the positioning shaft, a tip cone is arranged at the right end of the positioning ejector rod, and the cone angle of the tip cone is 60 degrees.
In a further technical scheme, a positioning sliding groove is formed in the circumferential side face of the positioning shaft along the axial direction of the positioning shaft, and a positioning screw matched with the positioning sliding groove is installed on the pull disc; the arrangement can prevent the pull disc from rotating relative to the positioning shaft.
(III) advantageous effects
Compared with the prior art, the technical scheme of the utility model have following advantage:
when the compensation type power chuck is used, a workpiece is placed in the clamping jaws, the pull disc is pulled by the pull rod to move leftwards, the clamping block is driven to rotate around the rotating shaft when the pull disc moves leftwards, the left end of the clamping block moves in the direction away from the pull rod, and the right end drives the clamping jaws to clamp the workpiece; when the chuck rotates, the left end of the clamping block moves in the direction away from the pull rod under the action of centrifugal force and compresses the first spring, so that the right end of the clamping block drives the clamping jaw to clamp a workpiece more tightly, and the effect of compensating clamping force is achieved; in addition, the first spring is arranged, so that the clamping block can rotate around the rotating shaft more stably, the pull disc is driven to move rightwards through the pull rod when the workpiece is loosened, and the clamping block rotates reversely under the action of the first spring to loosen the clamped workpiece.
Drawings
FIG. 1 is a front cross-sectional view of an embodiment of a compensating power chuck;
FIG. 2 is a right side view of the compensating power chuck of the exemplary embodiment;
fig. 3 is an enlarged schematic view of a portion a in fig. 1.
Detailed Description
Referring to fig. 1-3, a compensation type power chuck includes a disk body 1, a mounting cavity 101 with an opening at the left end is arranged in the disk body 1, a mounting hole 102 communicated with the mounting cavity 101 is arranged at the center position in the disk body 1, a positioning shaft 2 with the left end extending into the mounting cavity 101 is arranged in the mounting hole 102, and a pull disk 3 connected to the positioning shaft 2 in a sliding manner is arranged in the mounting cavity 101; three slotted holes 103 communicated with the mounting cavity 101 are formed in the disc body 1 around the circumference of the mounting hole 102, clamping blocks 5 are arranged in the slotted holes 103 through rotating shafts 4, the left ends of the clamping blocks 5 are connected with the pull disc 3, the right ends of the clamping blocks 5 extend out of the slotted holes 103, and clamping jaws 6 used for clamping workpieces are mounted on the clamping jaws through bolts; the pull disc 3 is provided with a pull rod 7 for driving the pull disc 3 to slide left and right along the positioning shaft 2; a compensation gap is reserved between the side face of the clamping block 5 far away from the pull disc 3 and the inner side wall of the slotted hole 103; a spring hole 501 is formed in the side face, far away from the pull disc 3, of the clamping block 5, and the spring hole 501 is close to the left end of the clamping block 5; the disc body 1 is provided with a threaded hole 104 coaxial with the spring hole 501, an adjusting bolt 8 is installed in the threaded hole 104, a first spring 9 used for forcing the left end of the clamping block 5 to be pressed on the pull disc 3 is arranged in the spring hole 501, a sliding block 10 is sleeved on the first spring 9, and the sliding block 10 is connected in the spring hole 501 in a sliding mode. One end of the first spring 9 props against the adjusting bolt 8 through the sliding block 10, and the other end props against the bottom of the spring hole 501.
The clamping block 5 is provided with a first inclined plane 502 on the side surface close to the pull disc 3, and the pull disc 3 is provided with a second inclined plane 301 matched with the first inclined plane 502. The disk body 1 is provided with a flange 11 at the opening at the left end of the mounting cavity 101 for preventing the pull disk 3 from separating from the mounting cavity 101. The pull rod 7 is provided with a locking nut 12, and the arrangement can enable the pull rod 7 to be more stable. A positioning ejector rod 13 is installed in the positioning shaft 2, a top cone 14 is arranged at the right end of the positioning ejector rod 13, the cone angle of the top cone 14 is 60 degrees, and the positioning of a workpiece is achieved through the top cone 14. The positioning device is characterized in that a positioning sliding groove 201 is formed in the circumferential side face of the positioning shaft 2 in the axial direction of the positioning shaft 2, a positioning screw 15 matched with the positioning sliding groove 201 is installed on the pull disc 3, and the pull disc 3 can be placed to rotate relative to the positioning shaft 2.
When the compensation type power chuck is used, a workpiece is firstly placed in the clamping jaw 6, one end of the workpiece is fixed on the top cone 14, then the pull rod 7 pulls the pull disc 3 to move leftwards, and the pull disc 3 drives the clamping block 5 to rotate around the rotating shaft 4 through the matching of the second inclined surface 301 and the first inclined surface 502 when moving leftwards. When the clamping block 5 rotates around the rotating shaft 4, the left end of the clamping block 5 moves towards the direction far away from the pull rod 7, and the right end drives the clamping jaw 6 to clamp a workpiece. When the chuck rotates, the left end of the clamping block 5 moves in the direction far away from the pull rod 7 under the action of centrifugal force and compresses the first spring 9, so that the right end of the clamping block 5 drives the clamping jaw 6 to clamp a workpiece more tightly, and the effect of compensating clamping force is achieved; in addition, the first spring 9 is arranged, so that the clamping block 5 can rotate around the rotating shaft 4 more stably, the pull rod 7 drives the pull disc 3 to move rightwards when the workpiece is loosened, and the clamping block 5 rotates reversely under the action of the first spring 9 to loosen the clamped workpiece.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A compensation type power chuck comprises a chuck body and is characterized in that an installation cavity with an opening at the left end is arranged in the chuck body, an installation hole communicated with the installation cavity is formed in the center of the inside of the chuck body, a positioning shaft with the left end extending into the installation cavity is installed in the installation hole, and a pull disc connected to the positioning shaft in a sliding mode is arranged in the installation cavity; a plurality of slotted holes communicated with the mounting cavity are formed in the disc body around the circumference of the mounting hole, clamping blocks are arranged in the slotted holes through rotating shafts, the left ends of the clamping blocks are connected with the pull disc, and the right ends of the clamping blocks extend out of the slotted holes and are provided with clamping jaws for clamping workpieces; the pull disc is provided with a pull rod for driving the pull disc to slide left and right along the positioning shaft; a compensation gap is reserved between the side face of the clamping block far away from the pull disc and the inner side wall of the slotted hole; the side surface of the clamping block, which is far away from the pull disc, is provided with a spring hole, and the spring hole is close to the left end of the clamping block; the disc body is provided with a threaded hole coaxial with the spring hole, an adjusting bolt is installed in the threaded hole, a first spring used for forcing the left end of the clamping block to be pressed on the pull disc is arranged in the spring hole, one end of the first spring is abutted to the adjusting bolt, and the other end of the first spring is abutted to the bottom of the spring hole.
2. The compensating power chuck as claimed in claim 1, wherein the clamping blocks are provided with a first inclined surface on a side surface adjacent to the pull plate, and the pull plate is provided with a second inclined surface cooperating with the first inclined surface.
3. The compensating power chuck as claimed in claim 1, wherein the disk body is provided with a flange at the left end opening of the mounting cavity for preventing the pull disk from being separated from the mounting cavity.
4. The compensating power chuck as claimed in claim 1, wherein the pull rod is provided with a lock nut.
5. The compensation-type power chuck according to claim 1, wherein a positioning mandril is installed in the positioning shaft, a top cone is arranged at the right end of the positioning mandril, and the cone angle of the top cone is 60 degrees.
6. The compensation-type power chuck according to claim 1, wherein a positioning sliding groove is formed on the circumferential side surface of the positioning shaft along the axial direction of the positioning shaft, and a positioning screw matched with the positioning sliding groove is installed on the pull disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921052682.5U CN210231567U (en) | 2019-07-08 | 2019-07-08 | Compensation type power chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921052682.5U CN210231567U (en) | 2019-07-08 | 2019-07-08 | Compensation type power chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210231567U true CN210231567U (en) | 2020-04-03 |
Family
ID=69990129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921052682.5U Active CN210231567U (en) | 2019-07-08 | 2019-07-08 | Compensation type power chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210231567U (en) |
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 |
| CN114472948A (en) * | 2022-01-24 | 2022-05-13 | 呼和浩特众环工贸股份有限公司 | Chuck capable of realizing high concentricity by multiple combinations |
| CN115533146A (en) * | 2022-11-02 | 2022-12-30 | 昆山岱屹精密机械有限公司 | Machine tool claw disc for eccentric part |
-
2019
- 2019-07-08 CN CN201921052682.5U patent/CN210231567U/en active Active
Cited By (6)
| 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 |
| CN114472948A (en) * | 2022-01-24 | 2022-05-13 | 呼和浩特众环工贸股份有限公司 | Chuck capable of realizing high concentricity by multiple combinations |
| CN114472948B (en) * | 2022-01-24 | 2023-08-22 | 呼和浩特众环工贸股份有限公司 | Chuck capable of achieving high concentricity through various combinations |
| CN115533146A (en) * | 2022-11-02 | 2022-12-30 | 昆山岱屹精密机械有限公司 | Machine tool claw disc for eccentric part |
| CN115533146B (en) * | 2022-11-02 | 2023-12-19 | 昆山岱屹精密机械有限公司 | Machine tool claw disc for eccentric part |
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