CN111360483A - Pipe fitting expansion limiting mechanism with novel structure - Google Patents
Pipe fitting expansion limiting mechanism with novel structure Download PDFInfo
- Publication number
- CN111360483A CN111360483A CN202010129283.5A CN202010129283A CN111360483A CN 111360483 A CN111360483 A CN 111360483A CN 202010129283 A CN202010129283 A CN 202010129283A CN 111360483 A CN111360483 A CN 111360483A
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- China
- Prior art keywords
- expansion
- base body
- pipe fitting
- novel structure
- positioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a pipe fitting expansion limiting mechanism with a novel structure, wherein one end of an expansion shaft extends into a sliding through cavity of a base body, a plurality of expansion blocks are respectively slidably mounted at one end of the base body and arranged around the expansion shaft, the expansion blocks and the expansion shaft are matched with each other through a first guide surface and a second guide surface, a positioning shaft sleeve is sleeved outside all the expansion blocks, and a clamping gap for clamping a pipe fitting is formed between the inner wall of the positioning shaft sleeve and the outer wall of the expansion block. Through the tight stop gear of pipe fitting bloated of above-mentioned optimal design's novel structure, drive actuating cylinder and remove through the tight axle that expands of drive, first spigot surface and the cooperation of second spigot surface drive bloated tight piece and expand outward to with the pipe fitting centre gripping between bloated tight piece and location axle sleeve, be convenient for load and unload and guarantee positioning accuracy.
Description
Technical Field
The invention relates to the field of pipe fitting size control mechanisms, in particular to a pipe fitting expansion limiting mechanism with a novel structure.
Background
At present, the tail pipe fittings at home and abroad are mostly formed and assembled by adopting a welding mode; the pipe fittings have different shapes and various size requirements, the wall thickness of the material is thin, and the deformation is large after welding, so that the welding size of the pipe fittings is unstable, and the positioning core is difficult to withdraw; the later process is influenced, and partial workpieces are reworked or scrapped.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a pipe fitting expansion limiting mechanism with a novel structure.
The invention provides a pipe fitting expansion limiting mechanism with a novel structure, which comprises: the device comprises a base body, a driving cylinder, an expansion shaft, a positioning shaft sleeve and a plurality of expansion blocks;
the middle part of the base body is provided with a horizontally extending sliding through cavity, one end of the expansion shaft extends into the sliding through cavity and is slidably mounted on the sliding through cavity, the outer wall of the expansion shaft is provided with a first guide surface which is annularly arranged, and the first guide surface is positioned on one side of the base body and gradually reduces in the direction that the outer radial direction of the first guide surface is close to the base body;
the driving cylinder is positioned on one side of the base body, which is far away from the first guide surface, a driving shaft extending towards the direction of the expansion shaft is arranged on the driving cylinder, and the driving cylinder is in driving connection with the expansion shaft through the driving shaft;
base body is close to first spigot surface one end is equipped with along the radial a plurality of installation spouts that extend of mandril, and a plurality of installation spouts distribute along the mandril circumference that expands, but a plurality of bloated tight piece slidable mounting respectively is in a plurality of installation spouts, bloated tight piece towards bloated mandril one side be equipped with first spigot surface complex second spigot surface, the location axle sleeve cover is established at whole bloated tight piece outside and one end fixed with base body, location axle sleeve inner wall and bloated form the centre gripping clearance that is used for the centre gripping pipe fitting between the tight piece outer wall.
Preferably, the expansion block further comprises a tightening spring, and the tightening spring is sleeved outside all the expansion blocks.
Preferably, the positioning device further comprises two positioning blocks, the two positioning blocks are arranged at intervals, a positioning gap is formed between the two positioning blocks, the base body is located above the two positioning blocks, a positioning boss matched with the positioning gap is arranged at the bottom of the base body, and a gasket is arranged between the positioning boss and the side wall of the positioning gap.
Preferably, the base further comprises a limiting ring sleeve, a mounting cavity is formed in the base body, the limiting ring sleeve is mounted in the mounting cavity, a limiting boss is arranged on the side wall of the limiting ring sleeve, the limiting boss is located on one side, close to the driving cylinder, of the base body, and the sliding through cavity is located in the limiting ring sleeve.
Preferably, base body drives actuating cylinder one end and is equipped with from the tip along the spacing spout that the axle extends that expands, spacing boss is located in the spacing spout.
Preferably, the expansion block is slidably mounted at one end of the spacing ring sleeve far away from the driving cylinder.
Preferably, the side wall of the spacing ring sleeve is provided with an observation window.
According to the pipe fitting expansion limiting mechanism with the novel structure, one end of an expansion shaft extends into the sliding through cavity of the base body, the expansion blocks are slidably mounted at one end of the base body and arranged around the expansion shaft respectively, the expansion blocks and the expansion shaft are matched through the first guide surface and the second guide surface, the positioning shaft sleeve is sleeved outside all the expansion blocks, and a clamping gap for clamping a pipe fitting is formed between the inner wall of the positioning shaft sleeve and the outer wall of the expansion block. Through the tight stop gear of pipe fitting bloated of above-mentioned novel structure of optimal design, it removes through the bloated mandril of drive actuating cylinder through the drive, drives bloated tight piece through first spigot surface and the cooperation of second spigot surface and expand outward to rise tightly the pipe fitting and expand between tight piece and location axle sleeve, be convenient for load and unload and guarantee positioning accuracy.
Drawings
Fig. 1 is a schematic cross-sectional structure view of a pipe expansion limiting mechanism with a novel structure provided by the invention.
Fig. 2 is a schematic perspective view of a pipe expansion limiting mechanism with a novel structure according to the present invention.
Detailed Description
As shown in fig. 1 and 2, fig. 1 is a schematic cross-sectional structure diagram of a pipe expansion limiting mechanism with a novel structure according to the present invention, and fig. 2 is a schematic perspective structure diagram of the pipe expansion limiting mechanism with the novel structure according to the present invention.
Referring to fig. 1, the invention provides a pipe expanding and limiting mechanism with a novel structure, which comprises: the device comprises a base body 1, a driving cylinder 2, an expansion shaft 3, a positioning shaft sleeve 4 and a plurality of expansion blocks 5;
a horizontally extending sliding through cavity is arranged in the middle of the base body 1, one end of the expansion shaft 3 extends into the sliding through cavity and is slidably mounted on the sliding through cavity, the outer wall of the expansion shaft 3 is provided with a first guide surface which is annularly arranged, and the first guide surface is positioned on one side of the base body 1 and gradually reduces in the direction of the outer radial direction close to the base body 1;
the driving cylinder 2 is positioned on one side of the base body 1, which is far away from the first guide surface, a driving shaft extending towards the direction of the expansion shaft 3 is arranged on the driving cylinder 2, and the driving cylinder 2 is in driving connection with the expansion shaft 3 through the driving shaft;
base body 1 is close to first spigot surface one end is equipped with along 3 radial extension's of mandril a plurality of installation spouts that expand, and a plurality of installation spouts distribute along the 3 circumference of mandril that expand, but a plurality of 5 difference slidable mounting that expand tightly in a plurality of installation spouts, expand tightly 5 towards expand mandril 3 one side be equipped with first spigot surface complex second spigot surface, 4 covers of location axle sleeve are established and are all expanded 5 outsides and one end and base body 1 fixed, and 4 inner walls of location axle sleeve and the expansion form the centre gripping clearance that is used for the centre gripping pipe fitting between the 5 outer walls of mandril that expand tightly.
In the pipe fitting tight stop gear's of novel structure concrete working process of this embodiment, will treat fixed pipe fitting one end and insert the centre gripping clearance between tight piece and the location axle sleeve that expands, drive actuating cylinder and drive the tight axle that expands through the drive shaft and remove along the location axle sleeve, the tight motion of expanding, force the tight piece that expands through first spigot and second spigot and move toward the outward movement, it is spacing to expand tight piece outside effect realization quick chucking to the pipe wall, the pipe wall external diameter is held in the lock of stop collar and is prevented to warp.
In this embodiment, the tight stop gear of pipe fitting expansion of novel structure that provides, the mandril one end that expands stretches into base body slide logical chamber, but a plurality of bloated tight piece slidable mounting respectively just set up around the mandril that expands in base body one end, bloated tight piece and the mandril that expands pass through first spigot surface and second spigot surface cooperation, the location axle sleeve cover is established at whole bloated tight piece outsidely, location axle sleeve inner wall and the bloated tight piece outer wall between form the centre gripping clearance that is used for the centre gripping pipe fitting. Through the tight stop gear of pipe fitting bloated of above-mentioned novel structure of optimal design, it removes through the bloated mandril of drive actuating cylinder through the drive, drives bloated tight piece through first spigot surface and the cooperation of second spigot surface and expand outward to rise tightly the pipe fitting and expand between tight piece and location axle sleeve, be convenient for load and unload and guarantee positioning accuracy.
In a specific embodiment, the expansion device further comprises a tightening spring 6, wherein the tightening spring 6 is sleeved outside all the expansion blocks 5; when the driving shaft of the driving cylinder contracts, the expansion block returns to the original position under the action of the tightening spring, so that the pipe fitting can be taken out quickly.
In other specific embodiments, the present embodiment further includes two positioning blocks 7, the two positioning blocks 7 are disposed at intervals, and a positioning gap is formed between the two positioning blocks 7, the base body 1 is located above the two positioning blocks 7, a positioning boss 11 that is in clearance fit with the positioning is disposed at the bottom of the base body 1, and a gasket 9 is disposed between the positioning boss 11 and a side wall of the positioning gap; through adjusting the thickness of the gasket on the two sides of the positioning boss, the radial position of the pipe fitting can be accurately adjusted.
In a specific installation mode of the expansion shaft, the embodiment further comprises a limit ring sleeve 8, an installation cavity is arranged in the base body 1, the limit ring sleeve 8 is installed in the installation cavity, a limit boss 81 is arranged on the side wall of the limit ring sleeve 8, the limit boss 81 is positioned on one side of the base body 1 close to the driving cylinder 2, and the sliding through cavity is positioned in the limit ring sleeve 8; when driving actuating cylinder drive bloated mandril, spacing boss on the spacing ring cover supports and leans on base body one end, carries out spacingly to the spacing ring cover from the axial.
In order to guarantee the spacing reliability, in a further specific design mode, the base body 1 is provided with a spacing sliding groove extending from the end part along the expansion shaft 3 towards one end of the driving cylinder 2, and the spacing boss 81 is positioned in the spacing sliding groove.
Correspondingly, in the installation process of the expansion block, the expansion block 5 can be slidably installed at one end of the limiting ring sleeve 8 far away from the driving cylinder 2; the expansion block, the limit ring sleeve and the expansion shaft can be conveniently detached together.
In the specific embodiment of the spacing ring sleeve, the side wall of the spacing ring sleeve 8 is provided with an observation window, so that the position of the pipe fitting can be conveniently observed after the pipe fitting is installed and clamped.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a tight stop gear of pipe fitting expansion of novel structure which characterized in that includes: the device comprises a base body (1), a driving cylinder (2), an expansion shaft (3), a positioning shaft sleeve (4) and a plurality of expansion blocks (5);
a horizontally extending sliding through cavity is formed in the middle of the base body (1), one end of the expansion shaft (3) extends into the sliding through cavity and is slidably mounted on the sliding through cavity, a first guide surface is annularly arranged on the outer wall of the expansion shaft (3), and the first guide surface is positioned on one side of the base body (1) and gradually decreases in the direction of the outer radial direction close to the base body (1);
the driving cylinder (2) is positioned on one side, away from the first guide surface, of the base body (1), a driving shaft extending towards the direction of the expansion shaft (3) is arranged on the driving cylinder (2), and the driving cylinder (2) is in driving connection with the expansion shaft (3) through the driving shaft;
base body (1) is close to first spigot surface one end is equipped with along the radial a plurality of installation spouts that extend of mandril (3), and a plurality of installation spouts distribute along mandril (3) circumference that expands, but a plurality of bloated mandril (5) slidable mounting respectively are in a plurality of installation spouts, bloated mandril (5) towards expand mandril (3) one side be equipped with first spigot surface complex second spigot surface, location axle sleeve (4) cover is established at whole bloated mandril (5) outside and one end fixed with base body (1), location axle sleeve (4) inner wall and form the centre gripping clearance that is used for the centre gripping pipe fitting between bloated mandril (5) outer wall.
2. The pipe fitting expansion limiting mechanism with the novel structure as claimed in claim 1, further comprising a tightening spring (6), wherein the tightening spring (6) is sleeved outside all the expansion blocks (5).
3. The pipe fitting expansion limiting mechanism with the novel structure as claimed in claim 1, further comprising two positioning blocks (7), wherein the two positioning blocks (7) are arranged at intervals, a positioning gap is formed between the two positioning blocks, the base body (1) is located above the two positioning blocks (7), a positioning boss (11) matched with the positioning gap is arranged at the bottom of the base body (1), and a gasket (9) is arranged between the positioning boss (11) and the side wall of the positioning gap.
4. The pipe fitting expansion limiting mechanism with the novel structure as claimed in claim 1, further comprising a limiting ring sleeve (8), wherein a mounting cavity is formed inside the base body (1), the limiting ring sleeve (8) is mounted in the mounting cavity, a limiting boss (81) is formed on the side wall of the limiting ring sleeve (8), the limiting boss (81) is located on the side of the base body (1) close to the driving cylinder (2), and the sliding through cavity is located in the limiting ring sleeve (8).
5. The pipe fitting expansion limiting mechanism with the novel structure as claimed in claim 4, wherein one end of the base body (1) facing the driving cylinder (2) is provided with a limiting sliding groove extending from the end along the expansion shaft (3), and the limiting boss (81) is located in the limiting sliding groove.
6. The pipe fitting expansion limiting mechanism with the novel structure as claimed in claim 4, wherein the expansion block (5) is slidably mounted at one end of the limiting ring sleeve (8) far away from the driving cylinder (2).
7. The pipe fitting expansion limiting mechanism with the novel structure as claimed in claim 4, wherein the side wall of the limiting ring sleeve (8) is provided with an observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010129283.5A CN111360483A (en) | 2020-02-28 | 2020-02-28 | Pipe fitting expansion limiting mechanism with novel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010129283.5A CN111360483A (en) | 2020-02-28 | 2020-02-28 | Pipe fitting expansion limiting mechanism with novel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111360483A true CN111360483A (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010129283.5A Pending CN111360483A (en) | 2020-02-28 | 2020-02-28 | Pipe fitting expansion limiting mechanism with novel structure |
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| Country | Link |
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| CN (1) | CN111360483A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760819A (en) * | 2020-07-08 | 2020-10-13 | 重庆电子工程职业学院 | Manufacturing device of special-shaped copper pipe for computer heat dissipation |
| CN111843249A (en) * | 2020-07-28 | 2020-10-30 | 宁波恒信合精密机械有限公司 | Fixture for laser welding of magnetizer of fuel metering valve |
| CN112427992A (en) * | 2020-11-27 | 2021-03-02 | 广东和胜工业铝材股份有限公司 | Thin-walled tube clamping and processing device |
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| CN209394010U (en) * | 2018-12-21 | 2019-09-17 | 歌尔科技有限公司 | Axis processing and positioning device and concentricity detecting tool |
| CN209578497U (en) * | 2019-03-15 | 2019-11-05 | 山东欧锐激光科技有限公司 | A kind of tubing laser cutting machine |
| CN210023813U (en) * | 2018-12-28 | 2020-02-07 | 西京学院 | Self-positioning chuck |
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2020
- 2020-02-28 CN CN202010129283.5A patent/CN111360483A/en active Pending
Patent Citations (10)
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| CN102581839A (en) * | 2011-12-16 | 2012-07-18 | 浙江博雷重型机床制造有限公司 | Feeding manipulator |
| CN106181214A (en) * | 2016-08-28 | 2016-12-07 | 陶程意 | A kind of fixing device welded for large-scale iron sheet barrel |
| CN206083647U (en) * | 2016-11-23 | 2017-04-12 | 上海创志实业有限公司 | Novel bloated tight mechanism of sleeve of structure |
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| CN209394010U (en) * | 2018-12-21 | 2019-09-17 | 歌尔科技有限公司 | Axis processing and positioning device and concentricity detecting tool |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760819A (en) * | 2020-07-08 | 2020-10-13 | 重庆电子工程职业学院 | Manufacturing device of special-shaped copper pipe for computer heat dissipation |
| CN111760819B (en) * | 2020-07-08 | 2021-08-20 | 重庆电子工程职业学院 | Manufacturing device of special-shaped copper pipe for computer heat dissipation |
| CN111843249A (en) * | 2020-07-28 | 2020-10-30 | 宁波恒信合精密机械有限公司 | Fixture for laser welding of magnetizer of fuel metering valve |
| CN112427992A (en) * | 2020-11-27 | 2021-03-02 | 广东和胜工业铝材股份有限公司 | Thin-walled tube clamping and processing device |
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Application publication date: 20200703 |