CN217990980U - Elastic chuck for processing shaft sleeve - Google Patents
Elastic chuck for processing shaft sleeve Download PDFInfo
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- CN217990980U CN217990980U CN202221780621.2U CN202221780621U CN217990980U CN 217990980 U CN217990980 U CN 217990980U CN 202221780621 U CN202221780621 U CN 202221780621U CN 217990980 U CN217990980 U CN 217990980U
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- shaft
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Abstract
The utility model relates to a shaft sleeve processing elastic chuck, which comprises a positioning disc, a movable shaft, a clamping component and a connecting shaft; a mounting hole is formed in the positioning disc, and the position, close to one end, of the mounting hole is conical; the movable shaft is positioned in the mounting hole, the movable shaft is connected with the mounting hole in a sliding manner, one end of the movable shaft is provided with a connecting hole, and a bearing is connected in the connecting hole; one end of the connecting shaft is fixedly connected with the bearing, and the connecting shaft is used for driving the movable shaft to slide along the connecting hole; clamping assembly is including supporting core and movable block, and the one end fixed connection of connecting axle is kept away from to the one end of supporting core and loose axle, supports the protruding edge of fixedly connected with on the side that the core is close to the one end of loose axle, and the quantity of movable block is a plurality of, and the movable block sets up along the even interval of the circumference direction of supporting the core, the one end and the protruding outside fixed connection along the movable block, the outside of movable block be arranged in with the mounting hole conical part laminate. When in clamping, the side surface of the workpiece is uniformly stressed, and particularly, the part with lower rigidity or a thin-wall sleeve is not easy to deform.
Description
Technical Field
The utility model relates to an axle sleeve anchor clamps field, concretely relates to axle sleeve processing collet.
Background
Shaft sleeve parts occupy a large proportion in mechanical manufacturing. At present, universal fixtures such as a three-jaw chuck, a tailstock center and the like are mostly adopted for machining shaft sleeve parts, but because corresponding support or uneven support stress is not arranged in the middle, the radial cutting force is easy to cause uneven bending deformation or movement of the parts in the cutting process, particularly for parts with lower rigidity or thin-wall sleeves, so that the cutting depth is changed, and the taper machining error and the roundness error are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a shaft sleeve processing collet to solve the problem that the part of the lower or thin wall cover of rigidity warp easily in the course of working.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a shaft sleeve processing elastic chuck comprises a positioning disc, a movable shaft, a clamping assembly and a connecting shaft;
a mounting hole is formed in the positioning plate, and the position, close to one end, of the mounting hole is conical;
the movable shaft is positioned in the mounting hole, the movable shaft is connected with the mounting hole in a sliding manner, one end of the movable shaft is provided with a connecting hole, and a bearing is connected in the connecting hole;
one end of the connecting shaft is fixedly connected with the bearing, and the connecting shaft is used for driving the movable shaft to slide along the connecting hole;
the clamping assembly comprises a supporting core and movable blocks, one end of the supporting core is far away from the movable shaft, the supporting core is close to a convex edge of the fixedly connected with on the side face of one end of the movable shaft, the number of the movable blocks is multiple, the movable blocks are arranged at intervals uniformly in the circumferential direction of the supporting core, one end of each movable block is fixedly connected with the convex edge, gaps are formed between the movable blocks and the supporting core, and the outer sides of the movable blocks are used for being attached to the conical parts in the mounting holes.
Furthermore, a retainer ring groove is formed in the connecting hole, a retainer ring is clamped in the retainer ring groove, an end cover is connected to the opening of the connecting hole in a threaded mode, the bearing is located between the retainer ring and the end cover, and the connecting shaft penetrates through the end cover.
Further, the rear end of the machine tool spindle is fixedly connected with a pneumatic cylinder, and the telescopic end of the pneumatic cylinder is fixedly connected with the connecting shaft.
Further, still include and strut the subassembly, strut the subassembly with the movable block is connected, strut the subassembly and be used for making two adjacent movable blocks keep away from each other.
Furthermore, the opening assembly comprises a connecting rod, springs and limiting plates, an arc-shaped elastic hole coaxial with the supporting core is formed in the movable block, blocking pieces are fixedly connected to two ends of the elastic hole, the limiting plates are located in the elastic hole, the number of the limiting plates in one elastic hole is two, the springs are located in the elastic holes, and the two ends of each spring tightly support the limiting plates;
the connecting rod be with the arc pole of supporting the core with the axle center, the connecting rod is located two adjacent between the movable block, the both ends of connecting rod respectively with limiting plate fixed connection.
Furthermore, an annular buffer groove is formed in the support core.
The utility model has the advantages that:
when the positioning device is used, the positioning disc is fixed on a main shaft of a machine tool, the connecting shaft drives the movable shaft to move, when a workpiece needs to be fixed, the workpiece is sleeved between the supporting core and the movable block, the movable shaft is driven by the connecting shaft to move towards the connecting shaft, and the movable shaft is extruded between the mounting hole and the movable block, so that the movable hole is close to the central supporting core, and the supporting core and the movable block clamp the workpiece. The side surface of the workpiece is uniformly stressed, and the workpiece is supported by the supporting core, so that the part with low rigidity or a thin-wall sleeve is not easy to deform in the cutting process.
Drawings
FIG. 1 is an overall external structure view of a collet for processing a shaft sleeve;
FIG. 2 is a view of the shaft sleeve processing collet chuck at another angle of the whole outer part;
FIG. 3 is a cross-sectional view of a collet for use in machining a sleeve;
FIG. 4 is a schematic structural view of the inside of a collet for processing a shaft sleeve;
fig. 5 is a schematic structural diagram of a spreading assembly in a collet for processing a shaft sleeve.
Names corresponding to the marks in the figure:
1-positioning a disc; 2-a movable shaft; 3-connecting the shaft; 31-a bearing; 41-a support core; 42-a movable block; 43-a buffer tank; 44-a resilient aperture; 51-a connecting rod; 52-limiting plate; 53-spring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The embodiment of the utility model provides a:
referring to the attached drawings 1-5, the shaft sleeve processing elastic chuck comprises a positioning disc 1, a movable shaft 2, a clamping assembly and a connecting shaft 3; a mounting hole is formed in the positioning plate 1, and the position, close to one end, of the mounting hole is conical; the movable shaft 2 is positioned in the mounting hole, the movable shaft 2 is connected with the mounting hole in a sliding manner, one end of the movable shaft 2 is provided with a connecting hole, and a bearing 31 is connected in the connecting hole; one end of the connecting shaft 3 is fixedly connected with the bearing 31, and the connecting shaft 3 is used for driving the movable shaft 2 to slide along the connecting hole; clamping assembly is including supporting core 41 and movable block 42, the one end of supporting core 41 keeps away from the one end fixed connection of connecting axle 3 with loose axle 2, the protruding edge of fixedly connected with on the side of the one end that supports core 41 and is close to loose axle 2, the quantity of movable block 42 is a plurality of, the even interval in the circumferential direction of movable block 42 along supporting core 41 sets up, the one end and the protruding outside fixed connection of edge of movable block 42, be provided with the space between movable block 42 and the supporting core 41, the outside of movable block 42 be arranged in with the mounting hole conical part laminating.
When the positioning device is used, firstly, the positioning disc 1 is fixed on a main shaft of a machine tool, the connecting shaft 3 drives the movable shaft 2 to move, when a workpiece needs to be fixed, the workpiece is sleeved between the support core 41 and the movable block 42, the movable shaft 2 is driven to move towards the direction of the connecting shaft 3 through the connecting shaft 3, and the movable shaft is extruded between the mounting hole and the movable block 42, so that the movable hole is close to the central support core 41, and the support core 41 and the movable block 42 clamp the workpiece. The side surface of the workpiece is uniformly stressed, and the workpiece is supported by the support core 41, so that the part with low rigidity or a thin-wall sleeve is not easy to deform during the cutting process.
An annular buffer groove 43 is formed in the support core 41, so that internal stress generated during workpiece machining is reduced.
A retainer ring groove is formed in the connecting hole, a retainer ring is clamped in the retainer ring groove, an end cover is connected to the opening of the connecting hole in a threaded mode, the bearing 31 is located between the retainer ring and the end cover, the connecting shaft 3 penetrates through the end cover, the bearing 31 can be limited into the connecting hole through the retainer ring in the retainer ring groove, and relative rotation between the movable shaft 2 and the connecting shaft 3 is facilitated.
The rear end of the machine tool spindle is fixedly connected with a pneumatic cylinder, and the telescopic end of the pneumatic cylinder is fixedly connected with the connecting shaft 3. The connecting shaft 3 is driven to move by the pneumatic cylinder, and the movable shaft 2 is driven to move by the connecting shaft 3.
The device further comprises a propping assembly, the propping assembly is connected with the movable blocks 42, and the propping assembly is used for enabling the two adjacent movable blocks 42 to be away from each other. After the workpiece is clamped by the supporting core 41 and the movable blocks 42, after the workpiece is machined, the adjacent two movable blocks 42 are separated from the workpiece conveniently by the aid of the spreading assembly, and therefore the workpiece is taken out more easily.
The opening assembly comprises a connecting rod 51, a spring 53 and two limiting plates 52, an arc-shaped elastic hole 44 coaxial with the supporting core 41 is formed in the movable block 42, two ends of the elastic hole 44 are fixedly connected with blocking pieces, the limiting plates 52 are positioned in the elastic holes 44, the number of the limiting plates 52 in one elastic hole 44 is two, the spring 53 is positioned in the elastic hole 44, and two ends of the spring 53 tightly support the limiting plates 52; the connecting rod 51 is an arc-shaped rod coaxial with the supporting core 41, the connecting rod 51 is located between the two adjacent movable blocks 42, and two ends of the connecting rod 51 are respectively fixedly connected with the limiting plate 52. Through the arrangement of the spring 53, two adjacent movable blocks 42 are far away from each other, so that the workpiece is convenient to take out. When a workpiece is clamped, two adjacent movable blocks 42 approach each other, the spring 53 is compressed, and a portion of the connecting rod 51 is inserted into the elastic hole 44.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.
Claims (6)
1. A shaft sleeve processing elastic chuck is characterized by comprising a positioning disc, a movable shaft, a clamping assembly and a connecting shaft;
a mounting hole is formed in the positioning plate, and the position, close to one end, of the mounting hole is conical;
the movable shaft is positioned in the mounting hole, the movable shaft is connected with the mounting hole in a sliding manner, one end of the movable shaft is provided with a connecting hole, and a bearing is connected in the connecting hole;
one end of the connecting shaft is fixedly connected with the bearing, and the connecting shaft is used for driving the movable shaft to slide along the connecting hole;
the clamping assembly comprises a supporting core and movable blocks, one end of the supporting core is far away from the movable shaft, the supporting core is close to a convex edge of the fixedly connected with on the side face of one end of the movable shaft, the number of the movable blocks is multiple, the movable blocks are arranged at intervals uniformly in the circumferential direction of the supporting core, one end of each movable block is fixedly connected with the convex edge, gaps are formed between the movable blocks and the supporting core, and the outer sides of the movable blocks are used for being attached to the conical parts in the mounting holes.
2. The collet for processing the shaft sleeve according to claim 1, wherein a retainer ring groove is formed in the connecting hole, a retainer ring is clamped in the retainer ring groove, an end cover is connected to an opening of the connecting hole in a threaded manner, the bearing is located between the retainer ring and the end cover, and the connecting shaft penetrates through the end cover.
3. The collet for processing the shaft sleeve as recited in claim 1, wherein a pneumatic cylinder is fixedly connected to the rear end of the spindle of the machine tool, and the telescopic end of the pneumatic cylinder is fixedly connected to the connecting shaft.
4. The collet for processing the shaft sleeve according to claim 1, further comprising a spreading assembly, wherein the spreading assembly is connected with the movable blocks and used for enabling two adjacent movable blocks to be away from each other.
5. The collet for processing the shaft sleeve according to claim 4, wherein the spreading assembly comprises a connecting rod, a spring and two limiting plates, an arc-shaped elastic hole coaxial with the support core is formed in the movable block, two ends of the elastic hole are fixedly connected with a baffle plate, the limiting plates are located in the elastic holes, the number of the limiting plates in one elastic hole is two, the spring is located in the elastic hole, and two ends of the spring tightly support the limiting plates;
the connecting rod be with the arc pole of supporting the core with the axle center, the connecting rod is located two adjacent between the movable block, the both ends of connecting rod respectively with limiting plate fixed connection.
6. The collet for processing the shaft sleeve according to claim 1, wherein an annular buffer groove is formed in the support core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221780621.2U CN217990980U (en) | 2022-07-07 | 2022-07-07 | Elastic chuck for processing shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221780621.2U CN217990980U (en) | 2022-07-07 | 2022-07-07 | Elastic chuck for processing shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217990980U true CN217990980U (en) | 2022-12-09 |
Family
ID=84315064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221780621.2U Active CN217990980U (en) | 2022-07-07 | 2022-07-07 | Elastic chuck for processing shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217990980U (en) |
-
2022
- 2022-07-07 CN CN202221780621.2U patent/CN217990980U/en active Active
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