CN113664279B - False tail device for zero-tailing when cutting circular steel pipe along cross section and using method thereof - Google Patents

False tail device for zero-tailing when cutting circular steel pipe along cross section and using method thereof Download PDF

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Publication number
CN113664279B
CN113664279B CN202111162930.3A CN202111162930A CN113664279B CN 113664279 B CN113664279 B CN 113664279B CN 202111162930 A CN202111162930 A CN 202111162930A CN 113664279 B CN113664279 B CN 113664279B
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connecting body
steel pipe
length
conical
zero
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CN113664279A (en
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黄玉果
黄西刚
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D21/00—Machines or devices for shearing or cutting tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D33/00—Accessories for shearing machines or shearing devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention provides a false tail device with zero tail material when a round steel pipe is cut off along a cross section and a using method thereof, wherein the false tail device comprises a rear connecting body, a first counter bore groove for accommodating an intermediate connecting body is formed in the end surface of the rear connecting body, and radial dovetail grooves which are symmetrically arranged are formed in the bottom wall of the first counter bore groove; the end face of the middle connecting body is provided with a conical counter bore groove, the middle connecting body comprises two symmetrically arranged semi-annular bodies, and the end face, far away from the conical counter bore groove, of each semi-annular body is provided with a radial dovetail boss matched with the radial dovetail groove; the central positions of the rear connector and the middle connector are provided with through holes for the connecting bolts to pass through, the central position of the conical body is provided with a threaded through hole screwed with the connecting bolts, and the connecting bolts sequentially penetrate through the rear connector, the middle connector and the conical body and connect the rear connector, the middle connector and the conical body into a whole. The invention can ensure that the length of the actually generated tailings of the circular tube cutting machine is less than that of the finished product, thereby achieving zero-tailing cutting processing and improving the production efficiency and the resource utilization rate.

Description

False tail device for zero-tailing when cutting circular steel pipe along cross section and using method thereof
Technical Field
The invention relates to the technical field of pipe fitting production and processing, in particular to a false tail device of zero tailings when a circular steel pipe is cut off along a cross section and a using method thereof.
Background
Along with the improvement of the automation degree, professional processing equipment continuously emerges, when a circular steel pipe cutting machine is used for cutting a circular steel pipe, the efficiency and the cutting quality are high, but the length of tailings actually generated by the equipment is often longer than that of finished products, the special cutting machine is limited by factors such as space and the like, the manufacturing difficulty is very high, the manufacturing cost is increased, and the cutting cannot be realized at all when the required length is smaller; if the residual tailings (which can also be used for processing a finished product) are discarded, resource waste is caused, and the method is not preferable; if the processing is performed by other equipment, the production efficiency is reduced and the labor cost is occupied.
Disclosure of Invention
The invention aims to provide a zero tailing false tailing device for cutting a circular steel pipe along a cross section and a using method thereof, which can enable the length of the actually generated tailing of a circular pipe cutting machine to be smaller than the length of a finished product to be required, achieve zero tailing cutting processing and improve the production efficiency and the resource utilization rate.
According to the purpose of the invention, the invention provides a false tail device with zero tailing when a round steel pipe is cut off along a cross section, which comprises a rear connecting body, an intermediate connecting body, a conical body and a connecting bolt, wherein the rear connecting body and the intermediate connecting body are both in cylindrical structures;
The end face of the rear connecting body is provided with a first counter bore groove for accommodating the middle connecting body, and the bottom wall of the first counter bore groove is provided with radial dovetail grooves which are symmetrically arranged;
the end face of the middle connecting body is provided with a conical counter bore groove, the middle connecting body comprises two symmetrically arranged semi-annular bodies, and the end face of each semi-annular body, far away from the conical counter bore groove, is provided with a radial dovetail boss matched with the radial dovetail groove;
the rear connecting body and the middle connecting body are provided with through holes at the central positions, the through holes are used for the connecting bolts to pass through, threaded through holes screwed with the connecting bolts are arranged at the central positions of the conical bodies, and the connecting bolts sequentially penetrate through the rear connecting body and the middle connecting body and then are connected with the threaded through holes of the conical bodies into a whole.
Further, the taper of the conical body is the same as that of the conical counter sink groove.
Further, the area of the semi-annular body is smaller than half of the area of the first counter bore groove.
Furthermore, the diameter of the outer cylindrical surface of the rear connecting body is the same as the outer diameter of the processed steel pipe, and the diameter of the inner cylindrical surface of the rear connecting body is the same as the diameter of the outer cylindrical surface of the middle connecting body.
Furthermore, the sum of the length of the middle connecting body extending into the cut round pipe and the length of the exposed part of the rear connecting body is equal to the difference between the length of the tailings generated by the equipment and the length of the materials needed.
Further, the length of the middle connecting body extending into the cut round tube is less than or equal to half of the difference between the length of the tailings generated by the equipment and the length of the required materials.
Further, the length of the leaking part of the rear connecting body is larger than or equal to half of the difference between the length of the tailings generated by the equipment and the length of the materials needed.
Furthermore, four radial dovetail grooves are formed in the bottom wall of the first counter bore groove, two semi-annular bodies are arranged in the first counter bore groove, the radial dovetail bosses on the two semi-annular bodies are installed in the two radial dovetail grooves which are symmetrically arranged, and the two semi-annular bodies can slide along the radial dovetail grooves which are symmetrically arranged.
According to another object of the invention, the invention provides a method for using the false tail device for cutting the round steel pipe along the cross section, which comprises the following steps:
step one, the connecting bolt sequentially penetrates through the rear connecting body and the middle connecting body and then the threaded through holes of the conical body are connected into a whole;
Step two, the middle connecting body which leaks from the assembly body which is loosely connected into a whole is arranged in an inner hole of the processed steel pipe, at the moment, the outer surface of the middle connecting body is loosely connected with the inner hole surface of the processed steel pipe, and the inner and outer circumferential end surfaces of the rear connecting body are aligned with the end surface of the processed pipe fitting;
and thirdly, screwing the connecting bolt, enabling the connecting bolt to only rotate, enabling the conical body to axially move, forcing the two separated intermediate connecting bodies to symmetrically move outwards under the guidance of the radial dovetail groove until the peripheral surface of the intermediate connecting body is completely pressed on the inner surface of the processed steel pipe, and connecting the intermediate connecting body and the processed piece into a whole by virtue of static friction.
Furthermore, the connecting bolt can be connected with the processed workpiece into a whole by rotating less than one circle.
The technical scheme of the invention can ensure that the length of the actually generated tailings of the circular tube cutting machine is less than the length of the finished product to achieve zero tailing cutting processing, saves resource and labor waste and production management difficulty due to the fact that the actual length of the tailings is larger than the length of the finished product, ensures the automatic full cutting realization of circular tube cutting, improves the production efficiency and the resource utilization rate, and can generate considerable economic and social benefits due to the large number of processed tubes in the cutting of special tubes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a top view of an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a rear connector according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a semi-annular body according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a cone according to an embodiment of the present invention.
Description of the reference numerals:
in the figure, 1-rear connector, 2-middle connector, 3-conical body, 4-connecting bolt, 5-first counter sink groove, 6-radial dovetail groove, 7-conical counter sink groove, 8-semi-annular body, 9-radial dovetail boss, 10-through hole and 11-thread through hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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.
As shown in fig. 1-5:
a false tail device of zero tailing when cutting off a circular steel pipe along a cross section comprises a rear connector 1, an intermediate connector 2, a conical body 3 and a connecting bolt 4, wherein the rear connector 1 and the intermediate connector 2 are both in a cylindrical structure;
the end face of the rear connecting body 1 is provided with a first counter bore groove 5 for accommodating the middle connecting body, and the bottom wall of the first counter bore groove 5 is provided with radial dovetail grooves 6 which are symmetrically arranged;
a conical counter bore groove 7 is formed in the end face of the middle connecting body 2, the middle connecting body 2 comprises two symmetrically-arranged semi-annular bodies 8, the area of each semi-annular body 8 is smaller than half of that of the corresponding first counter bore groove 5, and a radial dovetail boss 9 matched with the radial dovetail groove 6 is arranged on the end face, far away from the conical counter bore groove 7, of each semi-annular body 8;
four radial dovetail grooves 6 are formed in the bottom wall of the first counter bore groove 5, two semi-annular bodies 8 are arranged in the first counter bore groove 5, radial dovetail bosses 9 on the two semi-annular bodies 8 are installed in the two symmetrically-arranged radial dovetail grooves 6, and the two semi-annular bodies 8 can slide along the symmetrically-arranged radial dovetail grooves 6.
The central positions of the rear connecting body 1 and the middle connecting body 2 are provided with through holes 10 for connecting bolts to pass through, and the taper of the conical body 3 is the same as that of the conical counter sink groove 7. The central position of the conical body 3 is provided with a thread through hole 11 screwed with the connecting bolt, and the connecting bolt 4 sequentially penetrates through the thread through hole 11 of the rear connecting body 1, the middle connecting body 2 and the conical body 3 to be screwed and connected into a whole.
The diameter of the outer cylindrical surface of the rear connecting body 1 is the same as the outer diameter of the processed steel pipe, and the diameter of the inner cylindrical surface of the rear connecting body 1 is the same as the diameter of the outer cylindrical surface of the middle connecting body 2. The sum of the length of the middle connecting body 2 extending into the cut round pipe and the length of the exposed part of the rear connecting body 1 is equal to the difference between the length of the tailings generated by the equipment and the length of the materials needed.
The length of the middle connecting body 2 extending into the cut round pipe is less than or equal to half of the difference between the length of the tailings generated by the equipment and the length of the materials needed; or the length of the leaking part of the rear connecting body 1 is more than or equal to half of the difference between the length of the tailings generated by the equipment and the length of the materials needed.
The use method of the false tail device for the zero-tailing when the circular steel pipe is cut off along the cross section comprises the following steps:
step one, a connecting bolt 4 penetrates through the rear connecting body 1 and the middle connecting body 2 in sequence and then is connected with a threaded through hole 11 of the conical body 3 into a whole;
step two, the middle connector 2 which is loosely connected into a whole and leaks from the assembly body is arranged in the inner hole of the processed steel pipe, at the moment, the outer surface of the middle connector 2 is loosely connected with the inner hole surface of the processed steel pipe, and the inner and outer circumferential end surfaces of the rear connector 1 are aligned with the end surface of the processed pipe;
and step three, screwing the connecting bolt 4, enabling the connecting bolt 4 to only rotate, enabling the conical body 3 to axially move, forcing the two separated intermediate connecting bodies 2 to symmetrically move outwards under the guidance of the radial dovetail grooves 6 until the peripheral surface of the intermediate connecting body 2 is completely pressed on the inner surface of the processed steel pipe, and connecting the intermediate connecting body 2 and the processed piece into a whole by means of static friction force. The internal thread of the conical body 3 of the embodiment is screwed with the external thread of the connecting bolt, the connecting bolt 4 is threaded with fine threads, the connecting bolt is not rotated for a circle, and the intermediate connecting body 2 and a processed workpiece can be connected into a whole.
Such as: the length L0 of the tail material is preset by the equipment, the actual required blanking length is L1, the axial length condition of the false tail design (including the length of the middle connecting body extending into the inner hole of the processed pipe fitting and the length of the rear connecting body) is less than or equal to L0-L1, and the length of the middle connecting body extending into the inner hole of the processed pipe fitting is not more than 1/2 (L0-L1); when the machined pipe (including the installed false tail) is cut to the end, let the real remaining length of the machined pipe be L2. If L2 is larger than L1 and smaller than L0, a real tailing with the length of L2 is formed without false tailing, and in fact, the tailing can be processed into a finished product; if the false tail is installed, the real remaining length of the processed pipe fitting is L2, based on the axial length condition of the false tail design, the sum of the real tail with the length of L2 and the length of the outer leakage false tail is calculated to be larger than L0, the cutting equipment can cut the last finished product of the single pipe, and the middle body cannot be cut to the part which penetrates into the processed pipe fitting; if L2 is less than L1, the sum of the lengths of L2 and the outer false tail is less than L0, and the artificial tail directly falls down according to the preset tail material and directly enters the automatic cutting of the next pipe.
By means of the assembly of the false tail and the pipe fitting, when the pipe fitting is cut off along the cross section, the length of the actually generated tail is smaller than a required length, namely zero tail, so that the problems of waste caused by the fact that the actually generated tail is longer than the required length when the circular pipe fitting is automatically cut off along the cross section and troubles caused by subsequent manual independent treatment are solved, the automatic production efficiency can be improved, the labor cost can be reduced, and the resource waste can be reduced. The invention has simple structure and low cost, is easy to realize the installation and the disassembly, and can be repeatedly used.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The false tail device is characterized by comprising a rear connector, an intermediate connector, a conical body and a connecting bolt, wherein the rear connector and the intermediate connector are both in cylindrical structures;
the end face of the rear connecting body is provided with a first counter bore groove for accommodating the middle connecting body, and the bottom wall of the first counter bore groove is provided with radial dovetail grooves which are symmetrically arranged;
the end face of the middle connecting body is provided with a conical counter bore groove, the middle connecting body comprises two symmetrically arranged semi-annular bodies, and the end face of each semi-annular body, far away from the conical counter bore groove, is provided with a radial dovetail boss matched with the radial dovetail groove;
The central position department of back connector with the intermediate junction body all offers the through-hole that is used for connecting bolt passes through, the central position department of conical body be equipped with connecting bolt closes the screw thread through-hole soon, connecting bolt runs through in proper order back connector with the intermediate junction body after with the conical body the screw thread through-hole closes to be connected as an organic wholely.
2. The pseudo-tailing device of zero tailing when cutting off a circular steel pipe along a cross section according to claim 1, wherein the taper of the conical body is the same as the taper of the conical counter sink groove.
3. The pseudo tail device for zero tailing when cutting off a circular steel pipe along a cross section according to claim 1, wherein the area of the semi-annular body is less than half of the area of the first counter sink groove.
4. The pseudo tail device of zero tailing when cutting off a circular steel pipe along a cross section according to claim 1, wherein the diameter of the outer cylindrical surface of the rear connecting body is the same as the outer diameter of the steel pipe to be processed, and the diameter of the inner cylindrical surface of the rear connecting body is the same as the diameter of the outer cylindrical surface of the middle connecting body.
5. The pseudo tail device of zero tailing when cutting off a circular steel pipe along a cross section according to claim 1, wherein the sum of the length of the middle connecting body extending into the cut circular pipe and the length of the exposed part of the rear connecting body is equal to the difference between the length of the tailing generated by the equipment and the length of the needed material.
6. The false tail device of zero tail when cutting off a circular steel pipe along the cross section according to claim 1, wherein the length of the middle connecting body extending into the cut circular pipe is less than or equal to half of the difference between the length of the tail generated by the equipment and the length of the required material.
7. The false tail device of zero tailing when cutting off circular steel pipes along cross sections according to claim 1, characterized in that the length of the leaking part of the rear connecting body is more than or equal to half of the difference between the length of the tailing generated by the equipment and the length of the material needed.
8. The pseudo tail device of zero tail when cutting off circular steel pipes along a cross section according to claim 1, wherein four radial dovetail grooves are formed in the bottom wall of the first counter bore groove, two of the half rings are arranged in the first counter bore groove, the radial dovetail bosses on the two half rings are installed in the two symmetrically arranged radial dovetail grooves, and the two half rings can slide along the symmetrically arranged radial dovetail grooves.
9. The use method of the false tail device for the zero-tail when cutting the circular steel pipe along the cross section according to any one of claims 1 to 8 is characterized by comprising the following steps:
Step one, the connecting bolt sequentially penetrates through the rear connecting body and the middle connecting body and then is connected with the threaded through hole of the conical body into a whole;
step two, the middle connecting body which is leaked outside the assembly body which is loosely connected into a whole is arranged in an inner hole of the processed steel pipe, the outer surface of the middle connecting body is loosely connected with the inner hole surface of the processed steel pipe, and the inner and outer circumferential end surfaces of the rear connecting body are aligned with the end surface of the processed pipe;
and thirdly, screwing the connecting bolt, enabling the connecting bolt to only rotate, enabling the conical body to axially move, forcing the two separated intermediate connecting bodies to symmetrically move outwards under the guidance of the radial dovetail groove until the peripheral surface of the intermediate connecting body is completely pressed on the inner surface of the processed steel pipe, and connecting the intermediate connecting body and the processed piece into a whole by virtue of static friction.
10. The method for using the false tail device of zero tail when cutting off the circular steel pipe along the cross section according to claim 9, wherein the connecting bolt is rotated less than one turn to connect the intermediate connecting body and the processed workpiece into a whole.
CN202111162930.3A 2021-09-30 2021-09-30 False tail device for zero-tailing when cutting circular steel pipe along cross section and using method thereof Active CN113664279B (en)

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CN202111162930.3A CN113664279B (en) 2021-09-30 2021-09-30 False tail device for zero-tailing when cutting circular steel pipe along cross section and using method thereof

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CN202111162930.3A CN113664279B (en) 2021-09-30 2021-09-30 False tail device for zero-tailing when cutting circular steel pipe along cross section and using method thereof

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CN113664279B true CN113664279B (en) 2022-08-12

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10057031C1 (en) * 2000-11-17 2002-05-23 Werner Jankus Device for the inner centering of pipe joints to be welded together
CN201399513Y (en) * 2009-04-28 2010-02-10 中国重型机械研究院有限公司 Inner supporting type extension rod mechanism for pipe bending equipment
CN102485385A (en) * 2010-12-03 2012-06-06 山东双轮股份有限公司 Thin-wall tube body fastening device
GB2514593B (en) * 2013-05-30 2016-02-17 Acergy France SAS Internal line-up clamps for welding pipes
CN110524327B (en) * 2019-09-26 2021-02-26 山东交通学院 Cutter sharpener for disc cutter
CN110666439B (en) * 2019-10-23 2021-07-06 西安航天动力机械有限公司 Inner support device and method for preventing deformation of cylinder outer part during welding and heat treatment

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