Special-shaped welded pipe mold stress dispersion supporting structure

Abstract

The utility model relates to the technical field of supporting, in particular to a special-shaped welded pipe mold stress dispersion supporting structure which comprises a threaded column installed in a mold body, a square rod is fixedly connected to the upper surface of the threaded column, and a threaded sleeve is connected to the outer surface of the square rod in a nested mode. The outer surface of the threaded sleeve and the outer surface of the threaded column are both movably connected with limiting covers, the outer surface of the square rod is connected with an inner supporting mechanism in a nested mode, and the inner supporting mechanism comprises a mounting ring and a third bolt. By changing the angle of the hinge rod and screwing the second bolt, the position of the moving rod can be limited, so that the extending length of the moving rod is adjustable, the stress distribution requirements of different shapes and directions in the mold main body can be met, meanwhile, it is ensured that the moving rod is tightly attached to the inner wall of the mold main body, and therefore multi-point supporting and stress dispersing are conducted.

Description

A stress-dispersing support structure for irregularly shaped welded pipe molds Technical Field

[0001] This utility model relates to the field of support technology, specifically a stress-dispersing support structure for irregularly shaped welded pipe molds. Background Technology

[0002] The supporting structure is an important component of the welded pipe mold. The welded pipe mold is a special tool used to produce welded pipes. Its main function is to bend metal sheets into a circle. The welded pipe mold is usually composed of multiple sets of forming molds and several sets of shaping molds. The metal sheet is fed into multiple sets of forming molds and rolled into a tube shape. For reference, there is a low-stress irregular welded pipe mold described in announcement number CN222710527U, which includes an arc-shaped connecting plate. Both ends of the arc-shaped connecting plate are slidably engaged with external threaded pipes. The external threaded pipes are detachably and fixedly connected to a drive shaft on an external frame. A screw-in ring is screwed onto the end of the external threaded pipe opposite to the arc-shaped connecting plate. An extrusion cover is fixed to the end of the screw-in ring opposite to the external threaded pipe.

[0003] Although the above-mentioned device can clamp and fix welded pipe molds of different apertures by means of two extrusion covers, which is convenient for installing welded pipe molds of different aperture sizes during the shaping process of irregular welded pipes, the contact position between the installation structure and the mold is the stress point, and the stress position is relatively concentrated. The lack of internal support structure leads to stress concentration, which reduces the stability and service life of the mold. Summary of the Invention

[0004] The purpose of this utility model is to provide a stress-dispersing support structure for irregularly shaped welded pipe molds to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A stress-dispersing support structure for an irregularly shaped welded pipe mold includes a threaded column installed inside the mold body, a square rod fixedly connected to the upper surface of the threaded column, and a threaded sleeve nested on the outer surface of the square rod.

[0007] The outer surfaces of the threaded sleeve and the threaded post are movably connected to limit caps. The outer surface of the square rod is nested with an inner support mechanism. The inner support mechanism includes a mounting ring and a third bolt. The mounting ring is nested with the outer surface of the square rod, and the third bolt is threaded with the outer surface of the mounting ring. The third bolt abuts against the square rod.

[0008] Furthermore, the upper and lower surfaces of the mounting ring are both fixedly connected to a screw cylinder, and the outer surface of the screw cylinder is threadedly connected to a threaded ring.

[0009] Furthermore, the internal support mechanism also includes a mounting base, a hinge rod, a second bolt, and a movable rod. The mounting base is fixedly connected to the upper and lower surfaces of the mounting ring, the hinge rod is hinged to the outer surface of the mounting base, the second bolt is threaded to the outer surface of the hinge rod, and the movable rod is embedded in and movably connected to the interior of the hinge rod.

[0010] Furthermore, one end of the second bolt contacts the moving rod, which can limit the position of the moving rod.

[0011] Furthermore, a limiting groove is provided inside the mold body, and the end of the moving rod matches the limiting groove.

[0012] Furthermore, a handle is fixedly connected to the upper surface of the limiting cover, and a nut is threadedly connected to the outer surface of the threaded column and the threaded sleeve.

[0013] Furthermore, the outer surface of the threaded sleeve is threaded with a first bolt, and the outer surface of the square rod is provided with several insertion holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The hinged design allows the hinge rod to swing within a certain angle range. Based on this, the hinge rod is squeezed by the threaded ring to change the angle of the hinge rod. By tightening the second bolt, the position of the moving rod can be limited, making the length of the moving rod adjustable. This can adapt to the stress distribution requirements of different shapes and directions inside the mold body, while ensuring a tight fit with the inner wall of the mold body, thereby providing multi-point support and dispersing stress.

[0016] 2. The insertion holes are distributed along the length of the square rod and are used to insert into the end of the first bolt, thereby realizing the positioning and fixing of the threaded sleeve on the square rod in the axial position. The distance between the threaded post and the threaded sleeve can be changed to make it suitable for mold bodies of different heights. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 is a schematic cross-sectional view of the main body of the mold of this utility model;

[0019] Figure 3 is a schematic diagram of the internal support mechanism of this utility model;

[0020] Figure 4 is a schematic diagram of the threaded column structure of this utility model.

[0021] In the diagram: 1. Threaded post; 101. Square rod; 102. First bolt; 103. Insertion hole; 104. Threaded sleeve; 2. Mold body; 201. Limiting groove; 3. Limiting cover; 301. Handle; 302. Nut; 4. Inner support mechanism; 401. Mounting ring; 402. Mounting seat; 403. Hinge rod; 404. Second bolt; 405. Moving rod; 406. Third bolt; 407. Screw barrel; 5. Threaded ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4. In this embodiment of the present invention, a stress dispersion support structure for an irregularly shaped welded pipe mold includes a threaded column 1 installed inside the mold body 2, a square rod 101 fixedly connected to the upper surface of the threaded column 1, and a threaded sleeve 104 nested on the outer surface of the square rod 101.

[0024] The outer surfaces of the threaded sleeve 104 and the threaded post 1 are movably connected to the limit cover 3. The outer surface of the square rod 101 is nested with an inner support mechanism 4. The inner support mechanism 4 includes a mounting ring 401 and a third bolt 406. The mounting ring 401 is nested on the outer surface of the square rod 101, and the third bolt 406 is threaded on the outer surface of the mounting ring 401. The third bolt 406 abuts against the square rod 101.

[0025] Specifically, the threaded column 1 and threaded sleeve 104 are placed inside the mold body 2. Then, the conical limiting cover 3 is installed. The nut 302 is rotated, and under the push of the thread, the two limiting covers 3 apply pressure to both ends of the mold body 2, thereby limiting the mold body 2. The position of the mounting ring 401 is fixed by the third bolt 406, thereby determining the position of the inner support mechanism 4. The limiting cover 3 is movably connected to the outer surface of the threaded column 1 and threaded sleeve 104 to prevent the mold body 2 from excessive displacement or deformation in the vertical direction, and further disperse and limit the concentration of stress.

[0026] Example 1

[0027] As shown in Figures 1-4, a screw cylinder 407 is fixedly connected to both the upper and lower surfaces of the mounting ring 401. A threaded ring 5 is threadedly connected to the outer surface of the screw cylinder 407. The inner support mechanism 4 also includes a mounting base 402, a hinge rod 403, a second bolt 404, and a moving rod 405. The mounting base 402 is fixedly connected to the upper and lower surfaces of the mounting ring 401. The hinge rod 403 is hinged to the outer surface of the mounting base 402. The second bolt 404 is threadedly connected to the outer surface of the hinge rod 403. The moving rod 405 is embedded and movably connected inside the hinge rod 403.

[0028] In this embodiment, a screw cylinder 407 is fixedly connected to the upper and lower surfaces of the mounting ring 401. A threaded ring 5 is threadedly connected to the outer surface of the screw cylinder 407. The position of the threaded ring 5 can be changed by rotating it. The mounting base 402 provides a fixed base for the subsequent installation of the hinge rod 403. The hinge method allows the hinge rod 403 to swing within a certain angle range. Based on this, the angle of the hinge rod 403 is changed by pressing the hinge rod 403 with the threaded ring 5. By tightening the second bolt 404, the position of the moving rod 405 can be limited, so that the extension length of the moving rod 405 is adjustable. This can adapt to the stress distribution requirements of different shapes and directions inside the mold body 2, while ensuring a tight fit with the inner wall of the mold body 2, thereby providing multi-point support and dispersing stress.

[0029] As shown in Figures 1-4, one end of the second bolt 404 contacts the moving rod 405, which can limit the position of the moving rod 405. A limiting groove 201 is opened inside the mold body 2, and the end of the moving rod 405 matches the limiting groove 201.

[0030] In this embodiment, the movable rod 405 matches and abuts against the limiting groove 201 inside the mold body 2. When the mold body 2 is subjected to force, the movable rod 405 distributes the stress to more parts of the mold body 2, avoiding stress concentration and improving the stability and service life of the mold.

[0031] Example 2

[0032] Based on Embodiment 1, in order to overcome the problem that it is inconvenient to adapt to mold bodies of different sizes in Embodiment 1.

[0033] As shown in Figures 1-4, a handle 301 is fixedly connected to the upper surface of the limiting cover 3, a nut 302 is threadedly connected to the outer surface of the threaded post 1 and the threaded sleeve 104, a first bolt 102 is threadedly connected to the outer surface of the threaded sleeve 104, and several insertion holes 103 are opened on the outer surface of the square rod 101.

[0034] In this embodiment, the handle 301 allows the user to hold the limiting cover 3, making the installation, disassembly, and adjustment of the limiting cover 3 easier and more convenient. The insertion hole 103 is distributed along the length of the square rod 101 and is used to insert into the end of the first bolt 102, thereby realizing the positioning and fixing of the threaded sleeve 104 on the square rod 101 in the axial position. The distance between the threaded post 1 and the threaded sleeve 104 can be changed to make it suitable for mold bodies 2 of different heights.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stress-dispersing support structure for a shaped welded pipe mold, comprising a threaded column (1) installed inside the mold body (2), wherein a square rod (101) is fixedly connected to the upper surface of the threaded column (1), and a threaded sleeve (104) is nested on the outer surface of the square rod (101); characterized in that, The outer surfaces of the threaded sleeve (104) and the threaded post (1) are movably connected to the limit cap (3). The outer surface of the square rod (101) is nested with an inner support mechanism (4). The inner support mechanism (4) includes: a mounting ring (401) nested on the outer surface of the square rod (101); and a third bolt (406) threaded on the outer surface of the mounting ring (401). The third bolt (406) abuts against the square rod (101).

2. The stress dispersion support structure for irregularly shaped welded pipe molds according to claim 1, characterized in that, The upper and lower surfaces of the mounting ring (401) are fixedly connected with screw cylinders (407), and the outer surface of the screw cylinder (407) is threadedly connected with a threaded ring (5).

3. The stress dispersion support structure for irregularly shaped welded pipe molds according to claim 1 or 2, characterized in that, The inner support mechanism (4) further includes: a mounting base (402) fixedly connected to the upper and lower surfaces of the mounting ring (401); a hinge rod (403) hinged to the outer surface of the mounting base (402); a second bolt (404) threadedly connected to the outer surface of the hinge rod (403); and a movable rod (405) embedded in and movably connected to the interior of the hinge rod (403).

4. The stress dispersion support structure for irregularly shaped welded pipe molds according to claim 3, characterized in that, One end of the second bolt (404) is in contact with the moving rod (405), which can limit the position of the moving rod (405).

5. The stress dispersion support structure for irregularly shaped welded pipe molds according to claim 3, characterized in that, The mold body (2) has a limiting groove (201) inside, and the end of the moving rod (405) matches the limiting groove (201).

6. The stress dispersion support structure for irregularly shaped welded pipe molds according to claim 1, characterized in that, The upper surface of the limiting cover (3) is fixedly connected to a handle (301), and the outer surfaces of the threaded column (1) and the threaded sleeve (104) are threadedly connected to nuts (302).

7. The stress dispersion support structure for irregularly shaped welded pipe molds according to claim 1, characterized in that, The outer surface of the threaded sleeve (104) is threaded with a first bolt (102), and the outer surface of the square rod (101) is provided with a plurality of insertion holes (103).

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