CN214517191U

CN214517191U - Necking tightening device for metal pipe connection

Info

Publication number: CN214517191U
Application number: CN202120734826.6U
Authority: CN
Inventors: 杨震
Original assignee: Laizhou Delian Nc Machinery Co ltd
Current assignee: Laizhou Delian Nc Machinery Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-10-29
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a throat tightening means for tubular metal resonator connects relates to pipe fitting processing technology field, including being used for driving the drive assembly that the tubular metal resonator removed to the throat device along vertical direction, the throat device sets up in the workstation on the bottom plate, and the throat device includes that the several can form the throat cover of complete ring after being arc structure and closed, links to each other with a plurality of throat covers linkage member, and the linkage member passes through the reciprocal closure of drive assembly driven throat cover and opens the throat that forms the tubular metal resonator. The utility model discloses a throat cover of three arc structure carries out the throat to the tubular metal resonator, can realize the smooth transition of tubular metal resonator throat department to improve tubular metal resonator throat quality, the linkage member then adopts pure mechanical type design, not only cooperates the precision high, and the fault rate is low moreover, is suitable for large batch tubular metal resonator production and processing.

Description

Necking tightening device for metal pipe connection

Technical Field

The utility model relates to a pipe fitting processing technology field especially relates to a throat tightening means for tubular metal resonator connects.

Background

The processing design of pipelines is often related in the modern mechanical field, the pipelines are mostly used for conveying liquid or gas media in the mechanical field, generally, a plurality of pipelines are connected to form a conveying system to finish smooth conveying of the media on one mechanical device due to the structural limitation of the device, the connection parts among the pipelines are sealed by adopting a necking design, and the quality of necking at two ends of the pipelines directly influences whether the quality of pipeline connection is qualified or not. However, throat processingequipment among the prior art sets up a plurality of throat splint that are the toper structure in its throat chamber annular, because throat splint itself is planar structure, consequently can lead to the tubular metal resonator uneven at the in-process atress of throat, presents anomalous polygon malformation structure behind the tubular metal resonator throat for the quality of tubular metal resonator throat department can not satisfy the good connection demand of tubular metal resonator, and based on this, provide the utility model discloses.

SUMMERY OF THE UTILITY MODEL

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of an overall appearance structure of a necking tightening device for metal pipe connection according to the present invention;

fig. 2 is a schematic front view of a necking down tightening device for connecting a metal pipe according to the present invention;

fig. 3 is a schematic structural view of a metal plate mounting plate in a necking tightening device for metal pipe connection according to the present invention;

fig. 4 is a schematic structural view of the inside of a workbench in a necking tightening device for metal pipe connection according to the present invention;

fig. 5 is a schematic cross-sectional view of the stage of fig. 4.

In the figure: 1. a base plate; 2. a support; 3. a cylinder; 4. a guide bar; 5. a metal tube mounting plate; 6. a work table; 7. a necking device; 8. a metal tube; 9. the elastic clamping piece; 10. a ferrule; 11. extruding the column; 12. a circular hole; 13. a traveler; 14. a limiting plate; 15. a circular truncated cone; 16. connecting a short rod; 17. a through hole; 18. a support bar; 19. a conical connecting block; 20. a necking sleeve; 21. tabletting; 22. a column; 23. a spring; 24. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting 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", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed 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 implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-5, a throat tightening mechanism for tubular metal resonator connection, including being used for driving the tubular metal resonator 8 along the drive assembly of vertical direction to throat device 7 removal, throat device 7 sets up in workstation 6 on bottom plate 1, throat device 7 includes that the several is the arc structure and can form the throat cover 20 of complete ring after closed, the linkage member that links to each other with a plurality of throat covers 20, the linkage member drives the reciprocal closure and the opening of throat cover 20 through drive assembly and forms the throat to tubular metal resonator 8.

Specifically, as shown in fig. 4 and 5, the inside of the working table 6 of the present invention is a cylindrical cavity structure, the linkage rod is disposed in the cavity of the working table 6, a vertical column 22 is fixed at the center of the bottom of the working table 6 along the vertical direction, and the top of the vertical column 22 extends along the radial direction to form a limiting plate 14;

the linkage rod piece comprises a sliding column 13 which is sleeved on an upright column 22 in a sliding mode, the top of the sliding column 13 extends outwards in the radial direction to form a pressing sheet 21, a limiting plate 14 at the top of the upright column 22 can stop the pressing sheet 21 to prevent the sliding column 13 from separating from the upright column 22, a round table 15 is formed at the bottom of the sliding column 13, a spring 23 is sleeved on the upright column 22, the spring 23 is located between the round table 15 and the bottom of the workbench 6, three connecting short rods 16 are distributed on the circumferential surface of the round table 15 in an annular mode, one end of each connecting short rod 16 is hinged with the round table 15, the other end of each connecting short rod passes through a through hole 17 in the cavity wall of the workbench 6 and then is connected with a supporting rod 18, the supporting rod 18 is obliquely arranged towards the inside of the workbench 6, a conical connecting block 19 is rotatably connected to the top of the supporting rod 18, a reducing sleeve 20 is fixed at the large-section end of the conical connecting block 19, and when the sliding column 13 slides downwards along the upright column 22, the connecting short rod 16 is driven to rotate anticlockwise relative to the horizontal plane, thereby driving the top end of the supporting rod 18 to move towards the inner direction of the workbench 6, and finally realizing the tendency that the three necking sleeves 20 are closed to form extrusion necking on the metal pipe 8.

Furthermore, the ratio of the inner diameter of the through hole 17 to the outer diameter of the connecting short rod 16 is 1.5:1, a sufficient space is left between the through hole 17 and the connecting short rod 16 for the connecting short rod 16 to swing up and down in the through hole 17, the ratio of the outer diameters of the pressing sheet 21 and the limiting plate 14 is controlled to be 1.5-2:1, the cross section of the extrusion action of the extrusion column 11 and the pressing sheet 21 can be ensured, and the sliding column 13 can be smoothly driven to slide along the circumferential surface of the upright column 22.

As shown in fig. 1 and 2, the utility model provides a drive assembly then includes that the mount establishes support 2 on bottom plate 1, install cylinder 3 on support 2 and the tubular metal resonator mounting panel 5 of being connected with the drive of 3 output ends of cylinder, the cylinder body end fixed mounting of cylinder 3 is at 2 up end of support, the piston end downwardly extending of cylinder 3 extends behind support 2 and links to each other with tubular metal resonator mounting panel 5, the lower terminal surface shape of tubular metal resonator mounting panel 5 is formed with the elasticity fastener 9 that is used for the fixed tubular metal resonator 8 of centre gripping, tubular metal resonator 8 passes through the detachable installation on tubular metal resonator mounting panel 5 of elasticity fastener 9, the personnel of being convenient for change fast.

Specifically, as shown in fig. 3, the elastic clamping piece 9 is a tapered tubular structure with a small top and a large bottom and a notch, the ferrule 10 is elastically sleeved on the outer wall of the elastic clamping piece 9, the bottom of the outer wall of the elastic clamping piece 9 is provided with a groove 24 for accommodating the ferrule 10, when the metal pipe 8 is inserted into the elastic clamping piece 9, the ferrule 10 is stirred downwards, and the elastic clamping piece 9 has certain elasticity, and the ferrule 10 does not deform, so that the bottom of the elastic clamping piece 9 is forced to contract inwards to clamp the metal pipe 8.

The driving assembly further comprises an extrusion column 11 which is arranged at the center of the lower end face of the metal pipe mounting plate 5 in the vertical direction, a round hole 12 matched with the outer diameter of the limiting plate 14 is formed in the bottom of the extrusion column 11 in the axial direction, and the extrusion column 11 moves downwards to abut against the pressing sheet 21 so as to drive the sliding column 13 to slide along the circumferential surface of the upright column 22.

Further, the both sides that lie in cylinder 3 on support 2 are provided with a guide bar 4 respectively along vertical direction, every guide bar 4 all downwardly extending through support 2 back and tubular metal resonator mounting panel 5's up end fixed connection, the top of guide bar 4 is formed with spacing backstop piece, two guide bars 4 then can be spacing to the piston rod motion formation of cylinder 3, guarantee that extrusion column 11 moves along vertical direction all the time to the cooperation precision of extrusion column 11 with traveller 13 has been ensured.

The utility model provides a throat tightening means for tubular metal resonator connects, when processing tubular metal resonator 8, insert tubular metal resonator 8 to elasticity fastener 9, stir hoop 10 downwards along elasticity fastener 9 outer wall until it gets into in recess 24, elasticity fastener 9 takes place to be out of shape and the tubular metal resonator 8 centre gripping is firm, start cylinder 3 drive tubular metal resonator 8 to throat device 7 and move, simultaneously compression leg 11 and tubular metal resonator 8 synchronous motion, after the round hole 12 in compression leg 11 passed limiting plate 14, compression leg 11 offsets with the preforming 21 at the traveller 13 top and drives traveller 13 and slide down along the periphery of stand 22, bracing piece 18 of connecting the end connection of quarter butt 16 moves to workstation 6 inboard and drives throat cover 20 closure and extrudes the throat to tubular metal resonator 8, along with tubular metal resonator 8 and compression leg 11 further downward movement, throat cover 20 closes gradually and forms a complete ring, thereby, the metal tube 8 forms a necking of a conical structure, and after the metal tube 8 is processed, the sliding column 13 is restored to the initial position under the action of the spring 23.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a throat tightening means for tubular metal resonator connects which characterized in that: including being used for driving drive assembly that tubular metal resonator (8) removed to throat device (7) along vertical direction, throat device (7) set up in workstation (6) on bottom plate (1), throat device (7) include that the several is arc structure and can form throat cover (20) of complete ring after closed, link member with a plurality of throat covers (20) link to each other, link member drives the reciprocal closure of throat cover (20) and opens the throat that forms tubular metal resonator (8) through drive assembly.

2. A necking take-up device for metal pipe connection according to claim 1, wherein: the inside of the workbench (6) is of a cylindrical cavity structure, the linkage rod piece is arranged in the cavity of the workbench (6), an upright post (22) is fixed at the center of the bottom in the workbench (6) along the vertical direction, and the top of the upright post (22) extends along the radial direction to form a limiting plate (14);

the linkage rod piece comprises a sliding column (13) which is sleeved on an upright post (22) in a sliding mode, the top of the sliding column (13) extends outwards along the radial direction to form a pressing sheet (21), a round table (15) is formed at the bottom of the sliding column, a spring (23) is sleeved on the upright post (22), the spring (23) is located between the round table (15) and the bottom of a workbench (6), three connecting short rods (16) are distributed on the circumferential surface of the round table (15) in an annular mode, one end of each connecting short rod (16) is hinged to the round table (15), the other end of each connecting short rod penetrates through a through hole (17) in the cavity wall of the workbench (6) and then is connected with a supporting rod (18), the top of the supporting rod (18) is rotatably connected with a conical connecting block (19), and a reducing sleeve (20) is fixed at the large section end of the conical connecting block (19).

3. A necking take-up device for metal pipe connection according to claim 2, wherein: the ratio of the inner diameter of the through hole (17) to the outer diameter of the connecting short rod (16) is 1.5:1, and the ratio of the outer diameter of the pressing sheet (21) to the outer diameter of the limiting plate (14) is 1.5-2: 1.

4. A necking take-up device for metal pipe connection according to claim 2 or 3, wherein: drive assembly establishes support (2) on bottom plate (1) including the mount, install cylinder (3) on support (2) and metal tube mounting panel (5) of being connected with cylinder (3) output drive, the cylinder body end fixed mounting of cylinder (3) is at support (2) up end, the piston end downwardly extending of cylinder (3) is passed behind support (2) and is linked to each other with metal tube mounting panel (5), the lower terminal surface of metal tube mounting panel (5) is formed with elasticity fastener (9) that are used for the fixed metal tube of centre gripping (8).

5. A necking take-up device for metal pipe connection according to claim 4, wherein: elastic clamping piece (9) is big end down and is had the toper tubular structure of breach, and elasticity has cup jointed cuff (10) on the outer wall of elastic clamping piece (9), and recess (24) with being used for holding cuff (10) are seted up to the outer wall bottom of elastic clamping piece (9).

6. A necking take-up device for metal pipe connection according to claim 4, wherein: the guide rods (4) are arranged on the two sides of the support (2) located on the air cylinder (3) in the vertical direction respectively, each guide rod (4) extends downwards to penetrate through the support (2) and then is fixedly connected with the upper end face of the metal pipe mounting plate (5), and a limiting stop block is formed at the top of each guide rod (4).

7. A necking take-up device for metal pipe connection according to claim 5 or 6, wherein: the driving assembly further comprises an extrusion column (11) which is arranged at the center of the lower end face of the metal pipe mounting plate (5) in the vertical direction, and a round hole (12) matched with the outer diameter of the limiting plate (14) is formed in the bottom of the extrusion column (11) in the axial direction.