CN215144816U - Mounting chuck component of thin-wall steel pipe or elbow - Google Patents
Mounting chuck component of thin-wall steel pipe or elbow Download PDFInfo
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- CN215144816U CN215144816U CN202023315020.8U CN202023315020U CN215144816U CN 215144816 U CN215144816 U CN 215144816U CN 202023315020 U CN202023315020 U CN 202023315020U CN 215144816 U CN215144816 U CN 215144816U
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- chuck
- positioning
- telescopic
- thin
- elbow
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000003754 machining Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses an installation chuck component of a thin-wall steel pipe or an elbow, which comprises a telescopic chuck and a motion telescopic block matched with the telescopic chuck; the telescopic chuck comprises a plurality of positioning fixture blocks, and the positioning fixture blocks are connected together through a coil spring to form a circular telescopic chuck; a tapered hole is formed in the center of the telescopic chuck; a positioning groove for clamping a coil spring is formed in the inner side of the telescopic chuck; the movable telescopic block comprises a conical surface matched with the conical hole, and the front end of the conical surface is provided with a cylindrical surface connected with an external tensioning cylinder main shaft. The utility model discloses an inner wall of thin wall steel pipe or elbow has both been guaranteed to the location fixture block who struts to prop up like this that thin wall steel pipe or elbow are indeformable at the in-process of processing, and clamping of thin wall steel pipe or elbow is more stable in the course of working simultaneously, and the rejection rate greatly reduced has also improved machining efficiency simultaneously.
Description
Technical Field
The utility model belongs to the technical field of thin-walled steel pipe and elbow processing, concretely relates to installation chuck subassembly of thin-walled steel pipe or elbow.
Background
At present, a common clamping device in the machining field is a three-jaw chuck, which consists of a chuck body, movable jaws and a jaw driving mechanism and is generally used for machining solid parts. When processing steel pipe sheath class work piece, because the work piece of steel pipe sheath class is hollow and the wall is thin, because the jack catch of three-jaw chuck is shorter, and is little with work piece area of contact, has following problem: the workpiece is clamped by force, so that the workpiece is easy to deform, the clamping is not required to be clamped by force, the workpiece is easy to fly due to unstable clamping, potential safety hazards exist, the rejection rate is high, and the machining efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an installation chuck subassembly of thin wall steel pipe or elbow to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a mounting chuck component of a thin-wall steel pipe or an elbow comprises a telescopic chuck and a movable telescopic block matched with the telescopic chuck;
the telescopic chuck comprises a plurality of positioning fixture blocks, and the positioning fixture blocks are connected together through a coil spring to form a circular telescopic chuck; a tapered hole is formed in the center of the telescopic chuck; a positioning groove for clamping a coil spring is formed in the inner side of the telescopic chuck;
the motion telescopic block comprises a conical surface matched with the conical hole, and the front end of the conical surface is provided with a cylindrical surface connected with an external tensioning cylinder main shaft.
Preferably, each positioning fixture block comprises a positioning fixture block body, and a first wedge surface and a second wedge surface are respectively arranged on the upper side and the lower side of the positioning fixture block body; the inner wall of the positioning fixture block body is an arc-shaped surface; and a fixture block positioning groove is formed in the positioning fixture block body.
Preferably, the first wedge surface and the second wedge surface of the adjacent positioning fixture block are in contact when the thin-walled steel tube or the elbow is not clamped, and are separated when the thin-walled steel tube or the elbow is clamped.
Preferably, a plurality of fixture block positioning grooves arranged on the positioning fixture block body form an annular positioning groove together.
Preferably, a plurality of lightening holes are radially arranged on the disc surface of the telescopic chuck, and the lightening holes are uniformly distributed on the disc surface of the telescopic chuck.
In this embodiment, it is preferable that a positioning clamp arc which fits the thin-walled steel pipe or the elbow is provided on the outermost disk surface of the expansion chuck.
Preferably, a positioning chuck is arranged at the rear end of the telescopic chuck in an abutting mode, and the diameter of the positioning chuck is larger than that of the telescopic chuck.
Preferably, the positioning chuck comprises a positioning chuck body, and a plurality of fixing clamping grooves are radially arranged on the inner chuck surface of the positioning chuck body; a positioning lug matched with the fixed clamping groove is arranged at the back of the telescopic chuck; the positioning convex block is clamped in the fixed clamping groove. Compared with the prior art, the utility model discloses following beneficial effect has:
thin wall steel pipe or elbow's installation chuck subassembly, through setting the installation chuck to have a plurality of positioning fixture block to constitute, when carrying out thin wall steel pipe or elbow processing, establish thin wall steel pipe or elbow cover on the outer periphery of installation chuck, through the flexible piece of outside tight cylinder pulling motion that rises, the conical surface of flexible piece of motion struts the conical block at positioning fixture block at the in-process of motion, the inner wall of thin wall steel pipe or elbow is propped through the positioning fixture block who struts, thin wall steel pipe or elbow have both been guaranteed like this and have not become at the in-process of processing, clamping of thin wall steel pipe or elbow is more stable in the simultaneous processing process, the rejection rate greatly reduced has also improved machining efficiency simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic overall structural diagram of a mounting chuck assembly of a thin-walled steel pipe or an elbow according to an embodiment of the present invention;
FIG. 2 is an exploded view of the mounting chuck assembly for thin-walled steel pipes or elbows according to embodiments of the present invention;
fig. 3 is an exploded view of another view of the mounting chuck assembly for thin-walled steel pipes or elbows according to embodiments of the present invention;
fig. 4 is an enlarged schematic view of a portion a in fig. 3.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, an embodiment of the present invention provides an installation chuck assembly for thin-walled steel pipes or elbows, which sequentially comprises, from front to back, a motion expansion block 2 for rotationally connecting with an external tensioning cylinder main shaft (not labeled in the figures), an expansion chuck 1 for clamping the thin-walled steel pipes or elbows, and a positioning chuck 4 for performing auxiliary positioning on the thin-walled steel pipes or elbows; the telescopic chuck 1 is matched with the movable telescopic block 2, the movable telescopic block 2 drives the positioning chuck 4 to be tensioned and contracted in the circumferential direction, so that clamping and releasing of the thin-wall steel pipe or the elbow are achieved, and when the device is used, the end face of the thin-wall steel pipe or the elbow is abutted against the positioning chuck 4, so that clamping of the thin-wall steel pipe or the elbow is more stable.
Referring to fig. 1-4, in the present embodiment, the retractable chuck 1 includes a plurality of positioning blocks 1.1, the positioning blocks 1.1 are connected together by a coil spring 3 to form a circular retractable chuck 1, and a tapered hole 1.2 is disposed at the center of the retractable chuck 1; the inner side of the telescopic chuck 1 is provided with a positioning groove 1.3 for clamping the coil spring 3. In this embodiment, the expansion chuck 1 is composed of eight positioning blocks 1.1, and the eight positioning blocks 1.1 are formed into a circular expansion chuck 1 along the arc surface by the coil spring 3. The inner wall of the expansion sleeve 2 comprises a wedge surface 2.3 matched with the conical surface body 1.2 and a cylindrical surface 2.4 connected with the outer rotating shaft 5 from front to back, and the rear end face of the expansion sleeve 2 is in contact with the positioning platform 3.
Referring to fig. 4, in the present embodiment, the eight positioning blocks 1.1 have the same structure, and a detailed description will be given below. The positioning fixture block 1.1 comprises a positioning fixture block body 1.11, and a first wedge surface 1.12 and a second wedge surface 1.13 are respectively arranged on the upper side and the lower side of the positioning fixture block body 1.11; the inner wall of the positioning fixture block body 1.11 is an arc-shaped surface 1.14; a fixture block positioning groove 1.15 is arranged on the positioning fixture block body 1.11. The first wedge surfaces 1.12 and the second wedge surfaces 1.13 of the eight positioning fixture blocks 1.1 are sequentially arranged end to end and connected together through a coil spring 3 to form a circular telescopic chuck 1, and the arc surfaces 1.14 of the eight positioning fixture blocks 1.1 are sequentially arranged end to form a conical hole 1.2 matched with the conical surface of the movable telescopic block 2. The fixture block positioning grooves 1.15 of the eight positioning fixture blocks 1.1 are sequentially arranged end to form a positioning groove 1.3 for mounting the coil spring 3. The coil spring 3 ensures the stress uniformity and stability of each positioning fixture block 1.1 in the processes of tensioning, resetting and contracting of each positioning fixture block 1.1.
Referring to fig. 1-4, in this embodiment, the movable telescopic block 2 includes a tapered surface 2.1 matching with the tapered hole 1.2, and a cylindrical surface 2.2 connected with the main shaft of the external tensioning cylinder is provided at the front end of the tapered surface 2.1. The conical surface 2.1 of the kinematic telescopic block 2 is sleeved in the telescopic chuck 1.
In this embodiment, a plurality of lightening holes 1.4 are radially arranged on the disc surface of the telescopic chuck 1, the lightening holes 1.4 are uniformly distributed on the disc surface of the telescopic chuck 1, and the lightening holes 1.4 can lighten the whole telescopic chuck 1. The outermost disc surface of the telescopic chuck 1 is provided with a positioning clamping arc 1.5 matched with the thin-wall steel pipe or the elbow, and when the telescopic chuck is used, the inner wall of the thin-wall steel pipe or the elbow is sleeved on the circular positioning clamping arc 1.5.
Referring to fig. 1-4, a positioning chuck 4 is supported at the rear end of the telescopic chuck 1, and the diameter of the positioning chuck 4 is larger than that of the telescopic chuck 1, so that when the thin-walled steel tube or the elbow is sleeved in the telescopic chuck 1, the outer end surface of the thin-walled steel tube or the elbow is just supported on the positioning chuck 4, and thus, the thin-walled steel tube or the elbow is not shaken during the processing process, the processing precision and stability are ensured, the rejection rate of the thin-walled steel tube or the elbow is greatly reduced, and the processing efficiency is also improved.
In this embodiment, the positioning chuck 4 includes a positioning chuck body 4.1, and a plurality of fixing slots 4.2 are radially arranged on an inner chuck surface of the positioning chuck body 4.1; the back of the telescopic chuck 1 is provided with a positioning lug 1.6 matched with the fixed clamping groove 4.2, and the positioning lug 1.6 is clamped in the fixed clamping groove 4.2. Clamping the positioning lug 1.6 in the fixing clamping groove 4.2 realizes the positioning connection of the positioning chuck 4 and the telescopic chuck 1, and on the other hand, the positioning lug 1.6 can slide in the fixing clamping groove 4.2 in a telescopic manner when the telescopic chuck 1 is in the processes of tensioning, resetting and contracting, so that the stability of the telescopic chuck 1 in the clamping process is further ensured. A positioning hole 4.3 for the tension cylinder main shaft to pass through is arranged at the center of the positioning chuck body 4.1.
The utility model discloses a theory of operation does:
the thin-wall steel pipe or the elbow to be processed is sleeved on a positioning clamping arc 1.5 of the outer circumferential surface of the telescopic chuck 1, the telescopic block 2 is pulled to move backwards through a main shaft (not marked in the figure) of a tensioning cylinder, at the moment, the inner diameter of the telescopic chuck 1 is expanded by a conical surface body 2.1 of the telescopic block 2, and the thin-wall steel pipe or the elbow is supported by the positioning clamping arc 1.5 on the telescopic chuck 1 along with the gradual expansion of the inner diameter of the telescopic chuck 1 so that the thin-wall steel pipe or the elbow is clamped and positioned, so that the thin-wall steel pipe or the elbow is clamped and fixed; after the thin-wall steel pipe or the elbow is processed, the tensioning cylinder is released to push the telescopic chuck 1 back to the original position, the coil spring 3 begins to contract back, the positioning fixture block 1.1 is pulled back, and the thin-wall steel pipe or the elbow can be taken down from the telescopic chuck 1.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an installation chuck subassembly of thin wall steel pipe or elbow which characterized in that: comprises a telescopic chuck (1) and a movable telescopic block (2) matched with the telescopic chuck (1);
the telescopic chuck (1) comprises a plurality of positioning fixture blocks (1.1), and the positioning fixture blocks (1.1) are connected together through coil springs (3) to form the circular telescopic chuck (1); a tapered hole (1.2) is arranged at the center of the telescopic chuck (1); a positioning groove (1.3) for clamping a coil spring (3) is formed in the inner side of the telescopic chuck (1);
the movable telescopic block (2) comprises a conical surface (2.1) matched with the conical hole (1.2), and the front end of the conical surface (2.1) is provided with a cylindrical surface (2.2) connected with an external tensioning cylinder main shaft.
2. The mounting chuck assembly for thin-walled steel pipes or elbows of claim 1, wherein: each positioning fixture block (1.1) comprises a positioning fixture block body (1.11), and a first wedge surface (1.12) and a second wedge surface (1.13) are respectively arranged on the upper side and the lower side of the positioning fixture block body (1.11); the inner wall of the positioning fixture block body (1.11) is an arc-shaped surface (1.14); and a fixture block positioning groove (1.15) is formed in the positioning fixture block body (1.11).
3. The mounting chuck assembly for thin-walled steel pipes or elbows of claim 2, wherein: the first wedge surface (1.12) and the second wedge surface (1.13) of the adjacent positioning fixture block (1.1) are contacted when the thin-wall steel pipe or the elbow is not clamped, and are separated when the thin-wall steel pipe or the elbow is clamped.
4. The mounting chuck assembly for thin-walled steel pipes or elbows of claim 3, wherein: the fixture block positioning grooves (1.14) arranged on the positioning fixture block bodies (1.11) form an annular positioning groove (1.3).
5. The mounting chuck assembly for thin-walled steel pipes or elbows of claim 1, wherein: a plurality of lightening holes (1.4) are radially arranged on the disc surface of the telescopic chuck (1), and the lightening holes (1.4) are uniformly distributed on the disc surface of the telescopic chuck (1).
6. The mounting chuck assembly for thin-walled steel pipes or elbows of claim 1, wherein: and a positioning clamping arc (1.5) matched with the thin-wall steel pipe or the elbow is arranged on the disc surface at the outermost side of the telescopic chuck (1).
7. The mounting chuck assembly for thin-walled steel pipes or elbows of claim 1, wherein: the rear end of the telescopic chuck (1) is abutted to be provided with a positioning chuck (4), and the diameter of the positioning chuck (4) is larger than that of the telescopic chuck (1).
8. The mounting chuck assembly for thin-walled steel pipes or elbows of claim 1, wherein: the positioning chuck (4) comprises a positioning chuck body (4.1), and a plurality of fixed clamping grooves (4.2) are radially arranged on the inner chuck surface of the positioning chuck body (4.1); a positioning lug boss (1.6) matched with the fixed clamping groove (4.2) is arranged at the back of the telescopic chuck (1); the positioning lug (1.6) is clamped in the fixed clamping groove (4.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023315020.8U CN215144816U (en) | 2020-12-31 | 2020-12-31 | Mounting chuck component of thin-wall steel pipe or elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023315020.8U CN215144816U (en) | 2020-12-31 | 2020-12-31 | Mounting chuck component of thin-wall steel pipe or elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215144816U true CN215144816U (en) | 2021-12-14 |
Family
ID=79400002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023315020.8U Expired - Fee Related CN215144816U (en) | 2020-12-31 | 2020-12-31 | Mounting chuck component of thin-wall steel pipe or elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215144816U (en) |
-
2020
- 2020-12-31 CN CN202023315020.8U patent/CN215144816U/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: 20211214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |