CN215469290U - Inner support assembly for welding thin-wall steel pipe and elbow - Google Patents
Inner support assembly for welding thin-wall steel pipe and elbow Download PDFInfo
- Publication number
- CN215469290U CN215469290U CN202023315032.0U CN202023315032U CN215469290U CN 215469290 U CN215469290 U CN 215469290U CN 202023315032 U CN202023315032 U CN 202023315032U CN 215469290 U CN215469290 U CN 215469290U
- Authority
- CN
- China
- Prior art keywords
- chuck
- telescopic
- positioning
- thin
- elbow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model discloses an inner support assembly for welding a thin-wall steel pipe and an elbow, which comprises an inner support structure, wherein the inner support structure comprises a telescopic chuck and a butt joint chuck arranged on the outer circumferential surface of the telescopic chuck; a motion telescopic block matched with the telescopic chuck is arranged in 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; and a positioning groove for clamping the coil spring is formed in the inner side of the telescopic chuck. The motion telescopic block is pulled by the external tensioning cylinder, the conical surface of the motion telescopic block props the conical block at the positioning fixture block in the motion process, and the inner walls of the thin-wall steel pipe and the elbow are propped by the propped positioning fixture block, so that the deformation of the thin-wall steel pipe and the elbow in the welding process is avoided, the thin-wall steel pipe and the elbow are clamped more stably in the welding process, the rejection rate is greatly reduced, and the processing efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of thin-wall steel pipe and elbow processing, and particularly relates to an inner support assembly for welding a thin-wall steel pipe and an elbow.
Background
At present, generally, the welding of the thin-wall steel pipe and the elbow is carried out by respectively grabbing the thin-wall steel pipe and the elbow through a jaw, but the contact area of the jaw is small, and the following problems exist: 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
The utility model aims to provide an inner support component for welding a thin-wall steel pipe and an elbow so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
an inner support assembly for welding a thin-wall steel pipe and an elbow comprises an inner support structure, wherein the inner support structure comprises a telescopic chuck and a butt joint chuck arranged on the outer circumferential surface of the telescopic chuck; a motion telescopic block matched with the telescopic chuck is arranged in 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 connecting surface connected with an external tensioning cylinder spindle.
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 the outermost disk surface of the expansion chuck is provided with positioning claws to be engaged with the abutment chuck.
Preferably, the docking chuck includes a plurality of docking chuck bodies matched with the positioning fixture blocks, and a plurality of positioning grooves for being engaged with the positioning fixture blocks are disposed on an inner circumferential surface of each docking chuck body.
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 smaller 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 has the following beneficial effects:
the inner support assembly for welding the thin-wall steel pipe and the elbow comprises a telescopic chuck and a butt chuck arranged on the outer circumferential surface of the telescopic chuck, when the thin-wall steel pipe and the elbow are welded, the thin-wall steel pipe and the elbow are sleeved on the outer circumferential surface of the butt chuck, the movable telescopic block is pulled by an external tensioning cylinder, the conical surface of the movable telescopic block props the conical block at the positioning fixture block in the moving process, and the inner walls of the thin-wall steel pipe and the elbow are propped by the propped positioning fixture block, so that the deformation of the thin-wall steel pipe and the elbow in the welding process is ensured to be avoided, the clamping of the thin-wall steel pipe and the elbow in the welding process is more stable, the rejection rate is greatly reduced, and the processing efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an integral internal support assembly for welding a thin-walled steel pipe and an elbow according to an embodiment of the present invention;
fig. 2 is an exploded structural schematic diagram of an inner support assembly for welding a thin-walled steel pipe and an elbow according to an embodiment of the utility model.
Detailed Description
The technical solutions 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 a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope 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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-2, an inner support assembly for welding a thin-walled steel tube and an elbow according to an embodiment of the present invention sequentially includes, from front to back, a movable expansion block 2 for rotationally connecting with an external tensioning cylinder spindle (not shown in the drawings), and an inner support structure for clamping the thin-walled steel tube and the elbow, where the inner support structure includes a telescopic chuck 1 and a docking chuck 5 mounted on an outer circumferential surface of the telescopic chuck 1; a positioning chuck 4 for auxiliary positioning of the thin-wall steel pipe or the elbow; the telescopic chuck 1 is matched with the moving telescopic block 2, the positioning chuck 4 is driven by the moving telescopic block 2 to be tensioned and contracted in the circumferential direction, so that clamping and releasing of the thin-wall steel pipe and the elbow are achieved, and when the device is used, the butt joint face of the thin-wall steel pipe and the elbow is sleeved on the butt joint chuck 5, so that clamping of the thin-wall steel pipe and the elbow in a welding process is more stable.
Referring to fig. 1-2, 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.
Referring to fig. 1-2, in the present embodiment, the motion expansion block 2 includes a tapered surface 2.1 matching with the tapered hole 1.2, and a connection surface 2.2 connected with the main shaft of the external tension cylinder is provided at the front end of the tapered surface 2.1. The tapered surface 2.1 of the motion telescopic block 2 is sleeved in the telescopic chuck 1, and the front end of the connecting surface 2.2 is provided with a fixing nut 2.3.
In the 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. And a positioning clamping jaw 1.5 clamped with the butt chuck 5 is arranged on the outermost disc surface of the telescopic chuck 1. In this embodiment, the docking chuck 5 includes a plurality of docking chuck bodies 5.1 matching with the positioning fixture blocks 1.1, and a plurality of positioning grooves for being engaged with the positioning fixture blocks 1.5 are disposed on an inner circumferential surface of each of the docking chuck bodies 5.1. In this embodiment, butt joint chuck 5 is the copper material and can change after the loss for later stage copper billet deformation, and flexible chuck 1 chooses for use the steel material, is because conical surface 2.1's strength is big, and taut relaxation action is frequent, and the steel material is more wear-resisting than copper. The expansion chuck 1 is made of steel.
Referring to fig. 1-2, a positioning chuck 4 is supported at the rear end of the telescopic chuck 1, and the diameter of the positioning chuck 4 is smaller than that of the telescopic chuck 1, so that the thin-walled steel pipe and the elbow can be sleeved in the telescopic chuck 1. 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 boss matched with the fixed clamping groove 4.2, and the positioning lug boss is clamped in the fixed clamping groove 4.2. Clamping the positioning convex block in the fixed clamping groove 4.2, realizing the positioning connection between the positioning chuck 4 and the telescopic chuck 1 on the one hand, and on the other hand, the positioning convex block can be stretched and slid in the fixed clamping groove 4.2 when the telescopic chuck 1 is tensioned and reset and contracted, so that the stability of the telescopic chuck 1 in the clamping process is further ensured. A positioning hole 4.3 for the main shaft of the tensioning cylinder to pass through is arranged at the center of the positioning chuck body 4.1.
The working principle of the utility model is as follows:
sleeving a thin-wall steel pipe and an elbow to be processed on the outer circumferential surface of a butt chuck 5 in a sleeving manner, and pulling a motion telescopic block 2 to move backwards through a tensioning cylinder main shaft (not marked in the figure), wherein at the moment, the inner diameter of the telescopic chuck 1 is expanded by a conical surface body 2.1 of the motion telescopic block 2, and the butt chuck 5 on the telescopic chuck 1 supports the thin-wall steel pipe and the elbow so that the thin-wall steel pipe or the elbow is mainly fixed along with the gradual expansion of the inner diameter of the telescopic chuck 1, so that the welding of the thin-wall steel pipe and the elbow is realized; after the thin-wall steel pipe and the elbow are welded, the tensioning cylinder is loosened to push the telescopic chuck 1 back to the original position, the coil spring 3 begins to contract back, the positioning clamping block 1.1 is pulled back, and the thin-wall steel pipe or the elbow can be taken down from the butt joint chuck 5.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. 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 (6)
1. The utility model provides an interior support assembly of thin wall steel pipe and elbow welded, includes interior bearing structure, its characterized in that: the inner support structure comprises a telescopic chuck (1) and a butt joint chuck (5) arranged on the outer circumferential surface of the telescopic chuck (1); a motion telescopic block (2) matched with the telescopic chuck is arranged in 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 motion 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 connecting surface (2.2) connected with an external tensioning cylinder spindle.
2. The thin-walled steel tube and elbow welded internal support assembly 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).
3. The thin-walled steel tube and elbow welded internal support assembly of claim 1, wherein: and a positioning claw (1.5) clamped with the butt chuck (5) is arranged on the outermost disc surface of the telescopic chuck (1).
4. The thin-walled steel tube and elbow welded internal support assembly of claim 3, wherein: the butt joint chuck (5) comprises a plurality of butt joint chuck bodies (5.1) matched with the positioning clamping blocks (1.1), and a plurality of positioning grooves (5.2) used for being clamped with the positioning clamping jaws (1.5) are formed in the inner circumferential surface of each butt joint chuck body (5.1).
5. The thin-walled steel tube and elbow welded internal support assembly 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 smaller than that of the telescopic chuck (1).
6. The thin-walled steel tube and elbow welded internal support assembly of claim 5, 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 matched with the fixed clamping groove (4.2) is arranged at the back of the telescopic chuck (1); the positioning convex block is clamped in the fixed clamping groove (4.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023315032.0U CN215469290U (en) | 2020-12-31 | 2020-12-31 | Inner support assembly for welding thin-wall steel pipe and elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023315032.0U CN215469290U (en) | 2020-12-31 | 2020-12-31 | Inner support assembly for welding thin-wall steel pipe and elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215469290U true CN215469290U (en) | 2022-01-11 |
Family
ID=79718220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023315032.0U Active CN215469290U (en) | 2020-12-31 | 2020-12-31 | Inner support assembly for welding thin-wall steel pipe and elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215469290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367836A (en) * | 2022-02-14 | 2022-04-19 | 青岛美莱轨道股份有限公司 | Multifunctional tool clamp for large thin-wall workpiece and using method thereof |
-
2020
- 2020-12-31 CN CN202023315032.0U patent/CN215469290U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367836A (en) * | 2022-02-14 | 2022-04-19 | 青岛美莱轨道股份有限公司 | Multifunctional tool clamp for large thin-wall workpiece and using method thereof |
| CN114367836B (en) * | 2022-02-14 | 2024-01-23 | 青岛美莱轨道股份有限公司 | Multifunctional tool clamp for large thin-wall workpiece and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215469290U (en) | Inner support assembly for welding thin-wall steel pipe and elbow | |
| CN201906968U (en) | Separating device for interference assembled shaft sleeve | |
| CN209850201U (en) | Butt spot welding tool clamp for water heater enamel inner container barrel body end socket | |
| CN109732111A (en) | A kind of monodactyle air spider | |
| CN215144816U (en) | Mounting chuck component of thin-wall steel pipe or elbow | |
| CN113145883A (en) | Machine tool, cold-pressing ultrasonic knife handle, ultrasonic machining device and assembling method of ultrasonic machining device | |
| CN215747343U (en) | Welding head quick-change structure and welding robot | |
| WO2009072770A2 (en) | An extension mechanism of the spindle member for the machine tool | |
| CN210937212U (en) | Clamping mechanism for turning outer circle of hollow slender pipe fitting | |
| CN211649355U (en) | Natural gas line is welded junction group and is assembled device speedily carries out rescue work | |
| CN210010476U (en) | Back-pull type expansion collet chuck | |
| CN210306124U (en) | Electrode assembly and electric machining machine tool | |
| CN112427560A (en) | Circular tube spinning necking machine | |
| CN217018668U (en) | Clamp for turning inner ring of thin-wall bearing | |
| CN114074261A (en) | Sleeve adds clamping apparatus and clamping device | |
| CN211218734U (en) | Workpiece quick-change chuck structure for machine tool | |
| CN112536622B (en) | Universal clamping mechanism of automatic locking of milling cutter material stick | |
| CN218761969U (en) | Pipeline connecting device | |
| CN215965920U (en) | Stepped electric pipe expander | |
| CN215508480U (en) | Quick detach formula cup utensil lower positioning die subassembly | |
| CN220279548U (en) | Special extracting tool of resistance welding electrode | |
| CN214394023U (en) | Cylindrical spring pin dismounting clamp | |
| CN214867342U (en) | Positioning device for exhaust elbow | |
| CN213561110U (en) | Workpiece clamp of full-automatic inside diameter slicer | |
| CN218109589U (en) | Tensioning type gear chamfering fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |