CN109277841B - Thin-wall pipe inner support tool - Google Patents
Thin-wall pipe inner support tool Download PDFInfo
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- CN109277841B CN109277841B CN201811110913.3A CN201811110913A CN109277841B CN 109277841 B CN109277841 B CN 109277841B CN 201811110913 A CN201811110913 A CN 201811110913A CN 109277841 B CN109277841 B CN 109277841B
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- screw rod
- thin
- tool
- support plate
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention discloses an inner support tool for a thin-walled tube, which comprises an upper support plate and a corresponding lower support plate, wherein the centers of the upper support plate and the lower support plate are respectively connected with a screw rod through left threads and/or right threads; the edge of the lower supporting plate is provided with a lower hinge corresponding to the equal central angle, the lower hinge is hinged with the lower support rod, and the upper support rod is hinged with the lower support rod through a hinge; a locking nut is arranged between the upper supporting plate and the screw rod, and a locking nut is arranged between the lower supporting plate and the screw rod; the supporting tool is provided with a fixing structure. The supporting tool adapts to the sizes of different pipe diameters, keeps the roundness of the pipe, is convenient to machine a groove meeting the standard requirement, solves the problem of pipe diameter deformation when the groove is machined on the stainless steel thin-wall pipe, is convenient to disassemble and assemble, is simple to operate, and is beneficial to improving the working efficiency.
Description
Technical Field
The invention relates to the technical field of steel pipe structural members, in particular to an inner supporting tool for a thin-wall pipe.
Background
The chemical ship pipe system is mostly made of stainless steel materials, the wall thickness of the pipe is usually thin (mostly below 4 mm), the pipe and the flange are welded in a butt joint mode, and grooves are machined at two ends of the pipe by a groove machine before welding. Because the pipe wall is thin, the pipe diameter is easy to deform when the beveling machine clamps the pipe, the processed bevel has larger size and shape deviation, the phenomenon of uneven joint occurs when the next procedure is used for welding, and the assembly quality is influenced.
Disclosure of Invention
The invention aims to provide an inner supporting tool for a thin-walled tube, which can finely adjust the size of an outer supporting ring formed by the supporting tool, is suitable for sizes of different tube diameters, keeps the roundness of the tube, is convenient for processing a groove meeting the standard requirement, solves the problem of tube diameter deformation when the groove is processed by the stainless steel thin-walled tube, is convenient to disassemble and assemble, is simple to operate, is beneficial to improving the working efficiency, and can finely adjust the tube diameter.
In order to achieve the purpose, the technical scheme of the invention is to design an inner support tool for a thin-walled tube, which comprises an upper support plate and a corresponding lower support plate, wherein the centers of the upper support plate and the lower support plate are respectively connected with a screw rod through left threads and/or right threads; the edge of the lower supporting plate is provided with a lower hinge corresponding to the equal central angle, the lower hinge is hinged with the lower support rod, and the upper support rod is hinged with the lower support rod through a hinge; a locking nut is arranged between the upper supporting plate and the screw rod, and a locking nut is arranged between the lower supporting plate and the screw rod; the supporting tool is provided with a fixing structure.
Support for line contact between frock and the thin pipe wall, thin pipe wall inboard is smooth structure, support the frock and also be smooth structure at the contact point of thin pipe wall, because in the course of the work, support the worker and be equipped with the risk from the thin pipe wall landing, consequently, need increase fixed knot structure on original support frock's basis.
According to the preferable technical scheme, the fixing structure is that the screw rod is of a hollow structure, one end of the screw rod is provided with an elastic air bag with a rough outer surface, the elastic air bag is connected with one end of the screw rod in a sealing mode, and the other end of the screw rod is provided with an air inlet and an air outlet. The rough surface of the air bag can increase the friction force with the thin pipe wall, and the supporting tool is further fixed on the thin pipe wall. The gasbag is inflated during use, and the gasbag is deflated through the hollow lead screw after use, so that the disassembly and the assembly are convenient.
According to a preferable technical scheme, the screw rod is further provided with an annular air bag, the annular air bag is connected with the circumferential outer surface of the screw rod in a sealing mode, and an air inlet and an air outlet are formed in the connecting portion of the circumferential outer surface of the screw rod and the annular air bag. The elastic air bag and the annular air bag clamp the supporting tool in the middle to form a more stable clamping structure.
As a preferred technical scheme, one end of the screw rod is in threaded fit with a clamping nut, the end face of the clamping nut is a conical surface, the conical surface of the clamping nut is matched with a central through hole of a C-shaped split ring, and the C-shaped split ring is placed in a pipe fitting and forms a fixed structure with the clamping nut at one end of the screw rod. The round table-shaped top is matched with the split ring for use, the round table-shaped top compresses the split ring along with the continuous entering of the screw threads of the screw rod, and the split ring fixes the supporting tool in the thin pipe wall.
As an optimal technical scheme, the screw rod is provided with scales, the locking nut at one end is located on the scale mark 0, the compression amount of pipe diameters with different sizes to the supporting tool can be intuitively obtained through the scales on the screw rod, and the supporting range of the supporting tool can be conveniently and accurately and quantitatively adjusted.
As the preferred technical scheme, be equipped with the spring part between last backup pad and the bottom suspension fagging, the spring part is connected with the scale. In the elasticity limit, the compression capacity and the pressure that receives of spring part are directly proportional, and the compression capacity of spring part is big more for big pressure, and then the interval between backup pad and the bottom suspension fagging is little more, and pressure display device can audio-visual demonstration compression capacity. When the supporting tool is used for supporting the same pipe diameter, the compression amount can be rapidly determined according to experience, and the working efficiency is improved. And after the expansion of the supporting tool is accurately determined, the supporting tool is fixed through a locking nut.
As the preferred technical scheme, the upper supporting plate is fixedly arranged on the screw rod, the lower supporting plate is provided with a magnet, a driving electromagnet is arranged at the position, corresponding to the lower supporting plate, of the screw rod, the same magnetic pole of the magnet is opposite to that of the driving electromagnet, the driving electromagnet is electrically connected with the motor to form an electric driving device, and the electric driving device is electrically connected with the adjusting device.
Set up magnet at the bottom suspension fagging that supports the frock, correspond the position at the lead screw and set up driving electromagnet, according to the principle that like poles repel each other of magnet, along with the increase of circular telegram electric current, the distance of bottom suspension fagging and driving electromagnet is more and more far away, because go up the backup pad and fix on the lead screw, consequently the bottom suspension fagging is more and more near along with the increase of electric current with last backup pad, and the outer support ring face that consequently support piece formed is bigger and bigger.
Furthermore, electric drive arrangement is equipped with adjusting device, treats the thin pipe wall internal diameter that supports at adjusting device input, and through-hole adjusting device built-in controlling means turns into the internal diameter value and the distance value of lower backup pad and drive arrangement, goes up the distance value of backup pad and lower backup pad promptly, and then supports the bloated and reduce of frock through the control current size accurate control, improves the accurate degree of operation.
As a preferred technical scheme, the supporting plate is a regular hexagon supporting plate. The supporting plate can be a regular polygon such as a circle, a square, a regular octagon and the like, the supporting work of the regular hexagon supporting plate is best in supporting effect, and the manufacturing process is simple.
Preferably, the number of the upper stay bar and the lower stay bar is 6 respectively. The left thread and the right thread of the screw rod are rotated to control the angles of the 6 support rods, so that the support rods can be expanded and reduced and are supported on the inner wall of the pipe, the roundness of the pipe is kept, and a groove meeting the standard requirement is processed conveniently. The whole tool is six-sided and can be used for supporting the pipe system with the diameter phi of more than 219 mm. The upper supporting rod and the lower supporting rod of the supporting tool can be multiple, the more the supporting rods support the more contact points between the tool and the pipe wall, the better the supporting effect on the pipe wall is.
As the preferred technical scheme, the screw rod and the locking nut are made of carbon steel. Due to the particularity of the stainless steel piping system of the chemical ship, the strut parts are all made of stainless steel, and the adjusting screw rod is made of carbon steel, so that thread occlusion is prevented.
The invention has the advantages and beneficial effects that: the invention adopts the screw rod for adjustment, can finely adjust the size of the extension and can adapt to the sizes of different pipe diameters; the screw rod is adopted to rotate, so that the support tool can be conveniently disassembled and assembled on the thin pipe wall; the supporting tool is provided with the fixing structure, tight connection between the supporting tool and the thin pipe wall is guaranteed, the supporting tool is not prone to slipping in the working process, the supporting tool is easy to operate, and construction efficiency is high.
Drawings
FIG. 1 is a schematic structural diagram of an internal support tool of a thin-walled tube according to the present invention;
FIG. 2 is a top view of the support tool in a thin-walled tube according to the present invention;
fig. 3 is a sectional view of the support tool in the thin-walled tube.
In the figure: 1. a support plate; 2. a screw rod; 3. an upper hinge; 4. an upper stay bar; 5. a hinge; 6. a lower stay bar; 7. a lower hinge; 8. locking the nut; 9. a spring member; 10. an elastic air bag; 11. air inlet and outlet, 12, and graduated scale.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
An inner support tool for a thin-walled tube comprises support plates 1 which correspond to each other up and down, wherein the centers of the upper support plate and the lower support plate are hinged through threads of positive teeth and negative teeth of a screw rod 2, the edges of the upper support plate are provided with upper hinges 3 at equal central angles, and the upper hinges are hinged with upper support rods 4; the edge of the lower supporting plate is provided with a lower hinge 7 corresponding to the equal central angle, the lower hinge is hinged with a lower support rod 6, and the upper support rod is hinged with the lower support rod through a hinge 5; a locking nut 8 is arranged between the upper supporting plate and the screw rod, and a locking nut is arranged between the lower supporting plate and the screw rod; the supporting tool is provided with a fixing structure.
The fixing structure is that the screw rod is of a hollow structure, one end of the screw rod is provided with an elastic air bag 10 with a rough outer surface, the elastic air bag is connected with one end of the screw rod in a sealing mode, and the other end of the screw rod is provided with an air inlet and outlet 11.
The lead screw is further provided with an annular air bag, the annular air bag is connected with the circumferential outer surface of the lead screw in a sealing mode, and an air inlet and an air outlet are formed in the connecting portion of the circumferential outer surface of the lead screw and the annular air bag.
One end of the screw rod is in threaded fit with the clamping nut, the end face of the clamping nut is a conical surface, the conical surface of the clamping nut is matched with the central conical hole of the C-shaped split ring, and the C-shaped split ring is placed in the pipe fitting and forms a fixed structure with the clamping nut at one end of the screw rod.
And a spring part 9 is arranged between the upper supporting plate and the lower supporting plate and is connected with a dial gauge 12.
Go up backup pad thread tightening and set up on the lead screw, the bottom suspension fagging is equipped with magnet, the lead screw is equipped with driving electromagnet with the bottom suspension fagging corresponding position, magnet is relative with driving electromagnet's the same magnetic pole, driving electromagnet constitutes electric drive arrangement with the motor electricity is connected, electric drive arrangement is connected with adjusting device electricity.
The supporting plate is a regular hexagon supporting plate.
The upper supporting rod and the lower supporting rod are 6 respectively.
The screw rod and the locking nut are made of carbon steel.
And a molybdenum disulfide wear-resistant coating is arranged outside the hinge.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The inner support tool for the thin-walled tube is characterized by comprising an upper support plate and a corresponding lower support plate, wherein the centers of the upper support plate and the lower support plate are respectively connected with a screw rod through left threads and/or right threads; the edge of the lower supporting plate is provided with a lower hinge corresponding to the equal central angle, the lower hinge is hinged with the lower support rod, and the upper support rod is hinged with the lower support rod through a hinge; a locking nut is arranged between the upper supporting plate and the screw rod, and a locking nut is arranged between the lower supporting plate and the screw rod; the supporting tool is provided with a fixing structure; the fixing structure is a hollow structure of a screw rod, one end of the screw rod is provided with an elastic air bag with a rough outer surface, the elastic air bag is connected with one end of the screw rod in a sealing way, and the other end of the screw rod is provided with an air inlet and an air outlet; a spring part is arranged between the upper supporting plate and the lower supporting plate and is connected with the scale; the screw rod is also provided with an annular air bag, the annular air bag is hermetically connected with the circumferential outer surface of the screw rod, and an air inlet and outlet is arranged at the connection part of the circumferential outer surface of the screw rod and the annular air bag; the elastic air bag and the annular air bag clamp the supporting tool in the middle.
2. The support tool in the thin-walled tube according to claim 1, wherein one end of the screw rod is in threaded fit with a clamping nut, the end face of the clamping nut is a conical surface, the conical surface of the clamping nut is matched with a central conical hole of a C-shaped split ring, and the C-shaped split ring is placed in a pipe fitting and forms a fixing structure with the clamping nut at one end of the screw rod.
3. The thin-walled tube inner support tool according to claim 2, wherein the upper support plate is fixedly arranged on a screw rod in a threaded manner, the lower support plate is provided with a magnet, a driving electromagnet is arranged at a position of the screw rod corresponding to the lower support plate, the magnet is opposite to the same magnetic pole of the driving electromagnet, the driving electromagnet is electrically connected with a motor to form an electric driving device, and the electric driving device is electrically connected with an adjusting device.
4. The support tool in a thin-walled tube according to claim 3, wherein the support plate is a regular hexagon support plate.
5. The support tool in a thin-walled tube according to claim 4, wherein the number of the upper support rod and the number of the lower support rod are 6 respectively.
6. The support tool in a thin-walled tube according to claim 5, wherein the lead screw and the lock nut are made of carbon steel.
7. The support tool in a thin-walled tube according to claim 6, wherein a molybdenum disulfide wear-resistant coating is provided outside the hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110913.3A CN109277841B (en) | 2018-09-22 | 2018-09-22 | Thin-wall pipe inner support tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110913.3A CN109277841B (en) | 2018-09-22 | 2018-09-22 | Thin-wall pipe inner support tool |
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| Publication Number | Publication Date |
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| CN109277841A CN109277841A (en) | 2019-01-29 |
| CN109277841B true CN109277841B (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811110913.3A Active CN109277841B (en) | 2018-09-22 | 2018-09-22 | Thin-wall pipe inner support tool |
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| CN110270701B (en) * | 2019-06-26 | 2021-01-05 | 广东景昊智能装备制造有限公司 | Internal expansion type tool for numerical control CNC (computer numerical control) machining center |
| CN110293236B (en) * | 2019-08-02 | 2020-10-30 | 双峰县诚恩精密机械有限公司 | Wide digit control machine tool auxiliary device that has heat dissipation function of application scope |
| CN110695729A (en) * | 2019-10-22 | 2020-01-17 | 北京星航机电装备有限公司 | Profile supports frock in dysmorphism |
| CN110871406A (en) * | 2019-12-04 | 2020-03-10 | 湖州织里宝丰铝业有限公司 | Steel pipe clamping device suitable for different specifications |
| CN110953436B (en) * | 2019-12-11 | 2021-08-17 | 上海申排成套装备产业有限公司 | Strut device |
| CN111113102A (en) * | 2020-02-21 | 2020-05-08 | 常州市大华环宇机械制造有限公司 | Clamping device for machining bearing ring |
| CN111546103A (en) * | 2020-06-10 | 2020-08-18 | 扬州工业职业技术学院 | Multipoint synchronous winding and unwinding tool |
| CN111687656A (en) * | 2020-06-15 | 2020-09-22 | 曹燕红 | Clamping device for lathe roller |
| CN111660173B (en) * | 2020-06-16 | 2021-06-25 | 韩梅 | Ceramic cylinder liner grinding is with from centering anchor clamps |
| CN111822892B (en) * | 2020-07-24 | 2021-09-10 | 南昌航空大学 | Tool clamp for laser welding of C-shaped thin-wall part and using method thereof |
| CN111992764A (en) * | 2020-08-15 | 2020-11-27 | 谢琼玲 | Aluminum pipe drilling equipment |
| CN114055207B (en) * | 2021-11-23 | 2022-09-09 | 内蒙古工业大学 | Anti-deformation fixing equipment for tubular aluminum alloy machining |
| CN115008234B (en) * | 2022-08-05 | 2022-10-21 | 新乡学院 | Fixing device for processing annular parts |
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2018
- 2018-09-22 CN CN201811110913.3A patent/CN109277841B/en active Active
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| CN109277841A (en) | 2019-01-29 |
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