CN214814940U - Chuck for clamping thin-wall pipe - Google Patents
Chuck for clamping thin-wall pipe Download PDFInfo
- Publication number
- CN214814940U CN214814940U CN202023327285.XU CN202023327285U CN214814940U CN 214814940 U CN214814940 U CN 214814940U CN 202023327285 U CN202023327285 U CN 202023327285U CN 214814940 U CN214814940 U CN 214814940U
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- China
- Prior art keywords
- clamping
- chuck
- inner arc
- chuck body
- cylindrical hole
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- Expired - Fee Related
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- 238000003754 machining Methods 0.000 abstract description 5
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Abstract
The utility model belongs to the machining field relates to a chuck of centre gripping thin-walled tube spare, be circular shape chuck body including the quotation, the quotation of perpendicular chuck body is provided with the cylinder hole, the cylinder hole set up in the central point of chuck body. The outer side of the chuck body is provided with a plurality of clamping arms capable of moving towards the cylindrical hole, and the plurality of clamping arms are arranged at equal intervals along the outer edge of the chuck body. The clamping device is characterized in that a clamping end is arranged on the inner side of the clamping arm, a clamping block is arranged on the clamping end, an inner arc opening is formed in the inner arc section of the clamping block, the number of the inner arc openings can be increased according to the size requirement of the thin-wall pipe fitting, the two sides of each inner arc opening are clamping parts with arc-shaped smooth end surfaces, the contact area between the clamping blocks and the outer wall of the pipe fitting can be increased, enough clamping force is provided for thin-wall pipe fitting machining, machined parts are not prone to slipping and break away or deviate, meanwhile, the inner arc openings are distributed around the cylindrical hole at equal intervals, the stress is uniform during thin-wall pipe fitting machining, and deformation or damage of the machined parts caused by large clamping force is avoided.
Description
Technical Field
The utility model relates to the field of machining, in particular to chuck of centre gripping thin-walled tube spare.
Background
At present, a three-jaw chuck is often adopted to clamp parts, the parts with high density and strong compressive strength can be directly clamped through a clamping arm, but for a thin-wall pipe fitting, the clamping arm is in line contact with the pipe fitting, the clamping area is small, the clamping arm only has three clamping points, and the clamping force is not easy to control during machining. The clamping force is small, the pipe fitting is easy to slip, fall off or displace during processing, and the deformation and damage of the thin-wall pipe fitting can be caused by overlarge clamping force. At present, the existing three-jaw chuck for processing the thin-wall pipe fitting is difficult to balance between firm clamping and no deformation of a workpiece.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides a chuck of centre gripping thin-walled tube spare can solve the not suitable control of centre gripping dynamics in the thin-walled tube spare course of working, leads to the problem that thin-walled tube spare skidded or warp easily.
In order to realize the above purpose, the utility model discloses a technical scheme be: the utility model provides a chuck of centre gripping thin wall pipe spare, includes that the quotation is circular shape chuck body, and the quotation of perpendicular chuck body is provided with the cylinder hole, the cylinder hole set up in the central point of chuck body. The outer side of the chuck body is provided with a plurality of clamping arms capable of moving towards the cylindrical hole. The plurality of clamping arms are arranged along the periphery of the chuck body at equal intervals, clamping ends are arranged on the inner sides of the clamping arms, and clamping blocks are arranged on the clamping ends. The clamping block is of a fan-shaped structure, the inner arc section of the fan-shaped structure faces the cylindrical hole, the outer arc section of the fan-shaped structure is connected with the clamping arm, an inner arc opening is formed in the inner arc section of the clamping block, and the two sides of the inner arc opening are clamping portions of the clamping block.
Furthermore, the arc center of the inner arc section of the clamping block is positioned on the axis of the cylindrical hole.
Furthermore, the clamping part is an arc smooth end surface.
Furthermore, an inner arc opening is formed in the clamping block.
Furthermore, the inner arc openings are distributed at equal intervals along the periphery of the cylindrical hole.
Furthermore, the clamping end on the inner side of the clamping arm is of a clamping groove structure, the notch of the clamping groove structure points to the axial lead of the cylindrical hole, the outer arc section of the clamping block is arranged in the clamping groove structure, and the outer arc section of the clamping block is connected with the clamping arm through a connecting pin.
Compared with the prior art, the technical effect of the utility model lies in, be provided with the exposed core in the inboard of centre gripping arm, be provided with the grip block on the exposed core, the interior arc mouth has been seted up to the interior arc section of grip block, can add interior arc mouth quantity according to thin wall pipe's size demand, the both sides of interior arc mouth are the clamping part of the level and smooth terminal surface of convex, can increase the area of contact with thin wall pipe, provide sufficient clamping-force for thin wall pipe processing, make the machined part be difficult for skidding, break away from or produce the skew, simultaneously interior arc mouth enclose interval distribution such as cylinder hole, make thin wall pipe add the atress in man-hour even, avoid great clamping-force to lead the machined part to produce and warp or damage.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a left side view of the present invention;
Detailed Description
The following detailed description of the present invention is made with reference to the accompanying drawings: the utility model provides a chuck of centre gripping thin-walled tube spare, is circular shape chuck body 1 including the quotation, and the quotation of perpendicular chuck body 1 is provided with cylinder hole 2, cylinder hole 2 set up in the central point of chuck body 1. The outer side of the chuck body 1 is provided with a plurality of clamping arms 3 which can move towards the cylindrical hole 2. These a plurality of centre gripping arms 3 are arranged along 1 periphery of chuck body equidistant, and the inboard of centre gripping arm 3 sets up the exposed core, the exposed core on be provided with grip block 4. Grip block 4 is fan-shaped structure, and fan-shaped structure's inner arc section is towards cylinder hole 2, fan-shaped structure's outer arc section with centre gripping arm 3 connect, grip block 4 can carry out the rotation of small amplitude between centre gripping arm 3, in addition, has seted up interior arc mouth 5 on the inner arc section of grip block 4, the both sides of interior arc mouth 5 are the clamping part of grip block 4.
Wherein, the arc center of the inner arc section of the clamping block 4 is positioned on the axis of the cylindrical hole 2.
Preferably, the clamping portion 6 is an arc-shaped smooth end surface. An inner arc opening 5 is arranged on the clamping block 4. The number of the inner arc openings 5 can be increased according to the size requirement of the thin-wall pipe fitting, and meanwhile, the clamping part 6 with the arc-shaped smooth end surface can provide a larger contact area, so that enough clamping force is provided for processing the thin-wall pipe fitting, and the machined part is prevented from slipping and separating or deviating.
Preferably, the inner arc openings 5 are distributed at equal intervals along the periphery of the cylindrical hole 2. The clamping parts (6) at the two sides of the inner arc opening (5) are distributed at equal intervals along with the inner arc opening, so that the stress is uniform when the thin-wall pipe fitting is processed, and the deformation or damage of a machined part caused by large clamping force is avoided.
The clamping end on the inner side of the clamping arm 3 is of a clamping groove structure, a notch of the clamping groove structure points to the axial lead of the cylindrical hole 2, the outer arc section of the clamping block 4 is arranged in the clamping groove structure, and the outer arc section of the clamping block 4 is connected with the clamping arm 3 through a connecting pin 7. The clamping block 4 can be correspondingly replaced according to the size of the thin-wall pipe fitting.
It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (6)
1. A chuck for clamping a thin-wall pipe fitting comprises a chuck body (1) with a circular disc surface, wherein a cylindrical hole (2) is formed in the disc surface vertical to the chuck body (1), and the cylindrical hole (2) is formed in the center of the chuck body (1); a plurality of clamping arms (3) which can move towards the cylindrical hole (2) are arranged on the outer side of the chuck body (1); these a plurality of centre gripping arms (3) are arranged along chuck body (1) periphery equidistant, and the inboard of centre gripping arm (3) sets up exposed core, its characterized in that: the clamping end is provided with a clamping block (4); the clamping block (4) is of a fan-shaped structure, the inner arc section of the fan-shaped structure faces the cylindrical hole (2), the outer arc section of the fan-shaped structure is connected with the clamping arm (3), the inner arc section of the clamping block (4) is provided with an inner arc opening (5), and the two sides of the inner arc opening (5) are clamping parts (6) of the clamping block (4).
2. A chuck for holding thin walled tubular as claimed in claim 1, wherein: the arc center of the inner arc section of the clamping block (4) is positioned on the axis of the cylindrical hole (2).
3. A chuck for holding thin walled tubular as claimed in claim 1, wherein: the clamping part (6) is an arc smooth end surface.
4. A chuck for holding thin walled tubular as claimed in claim 1, wherein: the clamping block (4) is provided with an inner arc opening (5).
5. A chuck as in claim 4, wherein: the inner arc openings (5) are distributed at equal intervals along the periphery of the cylindrical hole (2).
6. The chuck for holding thin-walled tubular members as recited in claim 5, wherein: the clamping end on the inner side of the clamping arm (3) is of a clamping groove structure, the notch of the clamping groove structure points to the axial lead of the cylindrical hole (2), the outer arc section of the clamping block (4) is arranged in the clamping groove structure, and the outer arc section of the clamping block (4) is connected with the clamping arm (3) through a connecting pin (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023327285.XU CN214814940U (en) | 2020-12-31 | 2020-12-31 | Chuck for clamping thin-wall pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023327285.XU CN214814940U (en) | 2020-12-31 | 2020-12-31 | Chuck for clamping thin-wall pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214814940U true CN214814940U (en) | 2021-11-23 |
Family
ID=78875125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023327285.XU Expired - Fee Related CN214814940U (en) | 2020-12-31 | 2020-12-31 | Chuck for clamping thin-wall pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214814940U (en) |
-
2020
- 2020-12-31 CN CN202023327285.XU patent/CN214814940U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211123 |