CN219005113U - Combined type large cylindrical part welding deformation-preventing tool - Google Patents

Abstract

The utility model relates to the technical field of welding anti-deformation tools, in particular to a combined type large-sized cylindrical part welding anti-deformation tool. The tool comprises a general ring plate weldment, a special connecting block, trapezoidal screws and welding heads, wherein a plurality of general ring plate weldments are connected through the special connecting block to form a polygonal rigid body; one end of the trapezoidal screw is connected with the universal annular plate weldment, the other end of the trapezoidal screw is connected with the welding head, and the welding head is welded with the outer wall of the cylindrical part; and connecting the polygonal rigid body with the outer circle side of the cylindrical part through the trapezoidal screw and the welding head. The utility model supports the cylindrical part on the outer circular side, and can effectively control the deformation of the cylindrical part no matter the cylindrical part is a single-layer cylindrical part or the cylindrical part is a double-layer cylindrical part with rib plates arranged inside. The radial distance of the supporting point is adjusted by using the trapezoidal screw, so that the concentricity requirement on the tool and the cylindrical part is low, and the adjustment is more convenient.

Description

Combined type large cylindrical part welding deformation-preventing tool

Technical Field

The utility model relates to the technical field of welding anti-deformation tools, in particular to a combined type large-sized cylindrical part welding anti-deformation tool.

Background

Along with the development of underground engineering equipment, the application of large cylindrical parts in the underground engineering equipment is more and more extensive, such as shield bodies of shield machines, wind power towers and the like. When underground engineering equipment is used for underground operation, the underground engineering equipment needs to bear large pressure from soil and groundwater, and the cylindrical part is used as a main stress part for resisting soil layer pressure, so that the cylindrical part plays a vital role in protecting core parts and supporting the appearance of products. Therefore, the welding of the cylindrical member is particularly important. In general, a cylindrical part is formed by welding an inner shell, an outer shell and a middle rib plate, and when welding operation is performed, the inner rib plate is large in welding quantity, and the outer shell is usually deformed locally due to release of welding stress, so that roundness of the cylindrical part is deteriorated, and product quality is further affected. Therefore, it is also extremely important to control the welding deformation of the cylindrical member.

To solve the above problem, inner and outer bracing tools are generally used to prevent deformation of the cylindrical member. The internal stay tool is generally made of sectional materials, and the structure of the internal stay tool is similar to a Chinese character 'mi' shaped bracket. Although such an internal stay tooling can prevent the flange from deforming to some extent, it still has the following drawbacks:

1. the internal bracing tool is only suitable for cylindrical parts without rib plate structures in the cylinder body, such as shield tails of shield bodies, and is not suitable for ring-mounted cylinder bodies with two-layer cylindrical structures, such as shield bodies in front of and in the middle of the shield bodies.

2. Along with the diameter of the cylindrical part becoming larger, the section bar length of the internal stay frock also becomes larger, leads to the intensity of the internal stay frock not enough.

3. The internal stay frock is usually integrated into one piece, has bulky, installation dismantlement difficulty, transportation difficulty, takes up big shortcoming such as place.

The existing external bracing tool technology does not have universality, can only be used for a cylinder with a fixed diameter, and can only prevent the outward expansion deformation of the cylinder, and cannot control the inward contraction deformation of the cylinder.

Therefore, there is a need to develop a tool with a novel structure to solve the above problems.

Disclosure of Invention

First, the technical problem to be solved

In view of the defects and shortcomings of the prior art, the utility model provides a combined large-sized cylindrical part welding deformation-preventing tool, which solves the technical problems that the existing internal support tool is poor in applicability, the external support tool is poor in universality, and the inward shrinkage deformation of a cylindrical part cannot be controlled.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

the embodiment of the utility model provides a combined large cylindrical part welding deformation-preventing tool, which comprises a general annular plate welding part, a special connecting block, a trapezoidal screw and a welding head, wherein a plurality of general annular plate welding parts are connected through the special connecting block to form a polygonal rigid body; one end of the trapezoidal screw is connected with the universal annular plate weldment, the other end of the trapezoidal screw is connected with the welding head, and the welding head is welded with the outer wall of the cylindrical part; and connecting the polygonal rigid body with the outer circle side of the cylindrical part through the trapezoidal screw and the welding head.

Further, the universal ring plate weldment comprises a flange plate and a web plate which are vertically connected, wherein connecting holes are formed in two ends of the flange plate and used for being connected with the special connecting block, and trapezoid threaded holes are formed in the web plate and used for being connected with the trapezoid screw rods.

Further, the flange plate comprises a main body area connected with the web plate and a connecting area provided with the connecting hole, and two ends of the main body area protrude out of the connecting area to form a first stop edge.

Further, threaded holes corresponding to the connecting holes are formed in the special connecting blocks, and the special connecting blocks are connected with the universal annular plate weldment through bolts.

Further, the special connecting block is provided with a pin hole and a threaded hole corresponding to the connecting hole, and the special connecting block is connected with the universal annular plate weldment through a pin shaft and a bolt.

Further, the middle part of the bottom surface of the special connecting block protrudes out of two ends of the bottom surface of the special connecting block to form a second stop edge, and the second stop edge is positioned between two adjacent universal annular plate weldments.

Further, one end of the trapezoidal screw is in threaded connection with the universal annular plate weldment, and the other end of the trapezoidal screw is in rotary connection with the welding head.

Further, a groove for installing the trapezoidal screw is formed in the welding head, the other end of the trapezoidal screw is connected with the welding head through the cover plate, and the diameter of the other end of the trapezoidal screw is smaller than that of the groove.

(III) beneficial effects

The combined large-sized cylindrical part welding deformation-preventing tool provided by the utility model has the following beneficial effects:

1. the utility model supports the cylindrical part on the outer circular side, and can effectively control the deformation of the single-layer cylindrical part or the double-layer cylindrical part with the rib plates arranged inside.

2. The utility model adopts a combined structure that a plurality of universal ring plate weldments are connected through a plurality of special connecting blocks to form a polygonal rigid body; the combined structure has high universality and is suitable for supporting cylindrical parts with different diameters.

3. The utility model has simple structure, convenient disassembly and assembly, no occupied space and convenient transportation.

4. The tool is separated from the cylindrical part, and only the welding head with low manufacturing cost is required to be worn when being cut off, so that the overall durability of the tool is improved, and the loss of raw materials is reduced.

5. According to the utility model, the radial distance of the supporting point is adjusted by using the trapezoidal screw, so that the concentricity requirement on the tool and the cylindrical part is low, and the adjustment is more convenient.

Drawings

FIG. 1 is a schematic diagram of an application structure of a combined large-sized cylindrical part welding deformation-preventing tool;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the general purpose annular plate weldment of the present utility model;

FIG. 4 is a schematic diagram of the structure of the special connection block of the present utility model;

FIG. 5 is a schematic view of the connection of the trapezoidal screw of the present utility model to the universal ring plate weldment and the weld head.

[ reference numerals description ]

1. A universal ring plate weldment; 11. flange plates; 111. a connection hole; 112. a first stop edge; 12. a web; 121. a trapezoidal threaded hole; 2. a special connecting block; 21. a pin hole; 22. a threaded hole; 23. a second stop edge; 3. a trapezoidal screw; 4. a welding head; 41. a groove; 5. a cover plate; 6. a pin shaft; 7. a bolt; 8. a cylindrical member.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings. Wherein references herein to "upper", "lower", etc. are made to the orientation of fig. 1.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a combined anti-deformation tool for welding a large cylindrical part, and fig. 2 is a partial enlarged view of a position a in fig. 1.

In a first specific embodiment, the utility model provides a combined large cylindrical part welding deformation-preventing tool. The combined type large cylindrical part welding deformation-preventing tool combines the universal annular plate weldments 1 with different numbers and the special connecting blocks 2 into a polygonal rigid body, realizes the welding support of the outer circles of cylindrical parts 8 with different specifications, and has reusability and universality.

Referring to fig. 1 and 2, the combined large cylindrical part 8 welding deformation-preventing tool comprises a general annular plate welding part 1, a special connecting block 2, a trapezoidal screw 3 and a welding head 4. A plurality of universal ring plate weldments 1 are connected through special connecting blocks 2 to form a polygonal rigid body. One end of the trapezoidal screw rod 3 is in threaded connection with the universal annular plate weldment 1, the other end of the trapezoidal screw rod 3 is in rotary connection with the welding head 4, and the welding head 4 is welded with the outer wall of the cylindrical part 8. The polygonal rigid body is connected with the outer circular side of the cylindrical member 8 through the trapezoidal screw 3 and the welding head 4. The tool adopts the welding head 4 which is easy to replace, simple in structure and low in manufacturing cost and the trapezoidal screw 3 with the self-locking function to connect the outer wall of the cylindrical part 8 with the polygonal rigid body, so that the use cost can be reduced, and the outer wall of the cylindrical part 8 can be limited to expand outwards and contract inwards. Specifically, the trapezoidal screw 3 is rotated to drive the welding head 4 to move along the radial direction of the cylindrical part 8, and after the welding head 4 contacts with the outer wall of the cylindrical part 8, the trapezoidal screw 3 stops rotating to weld the welding head 4 with the outer wall of the cylindrical part 8. After the welding operation of the cylindrical part 8 is finished, the welding head 4 and the cylindrical part 8 are required to be cut off, and only the welding head 4 with low manufacturing cost and simple structure is required to be worn when being cut off, so that the overall durability of the tool can be improved, and the loss of raw materials is reduced.

The utility model supports the outer wall of the cylindrical part 8, not only can replace the internal support type support, but also can be used under the condition that the internal rib plate structure of the cylindrical part 8 is complex and the internal support type can not be used.

Wherein, referring to fig. 3, the universal ring plate weldment 1 comprises vertically connected flange plates 11 and webs 12. The flange plate 11 is provided with connecting holes 111 at both ends for connection with the dedicated connecting block 2. The web 12 is provided with a trapezoidal threaded hole 121 for connection with the trapezoidal screw 3. Specifically, the universal ring plate weldment 1 is a rigid structure having sufficient strength and rigidity, and the universal ring plate weldment 1 has recyclability.

In some embodiments, the flange plate 11 includes a main body region of the connecting web 12 and a connecting region where the connecting hole 111 is provided, and both ends of the main body region protrude from the connecting region to form a first stop 112 to prevent the universal ring plate weldment 1 from rotating when connected with the dedicated connecting block 2, so that the rotational freedom of the polygonal rigid body can be limited. Specifically, the middle part of the flange plate 11 is a straight plate, an inclined edge is formed at the first stop edge 112, and two end parts of the flange plate 11 are obliquely arranged towards the direction of the cylindrical part 8, so that two end parts of the flange plates 11 are connected through the special connecting block 2 to form a polygonal rigid body.

Wherein, referring to fig. 4, the special connection block 2 is provided with a pin hole 21 and a screw hole 22 corresponding to the connection hole 111 for connecting the special connection block 2 with the universal ring plate weldment 1 through the pin shaft 6 and the bolt 7. The pin shaft 6 can play a role in positioning, and the special connecting block 2 and the universal ring plate weldment 1 can be fixed through the bolt 7. Specifically, the dedicated connection block 2 is a single-layer square steel plate structure, and cylindrical members 8 of different diameter grades are provided with different dedicated connection blocks 2.

In some embodiments, the special connection block 2 is provided with a threaded hole 22 corresponding to the connection hole 111 for connecting the special connection block 2 with the universal ring plate weldment 1 by the bolt 7. The utility model can also fixedly connect the special connecting block 2 with the universal ring plate weldment 1 directly through the bolt 7.

In some embodiments, the middle part of the bottom surface of the special connecting block 2 protrudes from two ends of the bottom surface of the special connecting block 2 to form two second stop edges 23, and the second stop edges 23 are located between two adjacent universal ring plate weldments 1. The rotational freedom of the polygonal rigid body can be limited by the pin 6, the first stop 112 and the second stop 23. Specifically, the second stop edge 23 may be an inclined edge, so that the special connection block 2 and the universal ring plate weldment 1 are conveniently connected and fixed.

Wherein, referring to fig. 5, a groove 41 for installing the trapezoidal screw 3 is provided on the welding head 4, and the other end of the trapezoidal screw 3 is fitted into the groove 41 of the welding head 4 through the cover plate 5. The diameter of the other end of the trapezoidal screw 3 is smaller than the diameter of the groove 41 so that the trapezoidal screw 3 is rotatable with respect to the weld head 4. By rotating the trapezoidal screw 3, the welding head 4 is driven to move in the radial direction of the cylindrical member 8.

The working principle of the utility model in the present year is as follows: for cylindrical parts 8 with different specifications, different numbers of universal ring plate weldments 1 and special connecting blocks 2 are used for enclosing a polygon, the rotation freedom degree of the polygon is limited by utilizing a pin shaft 6, a first stop edge 112 and a second stop edge 23, and each universal ring plate weldment 1 and each special connecting block 2 are screwed down by utilizing bolts 7, so that a polygonal rigid body with enough strength and rigidity is formed. One end of the trapezoidal screw 3 is in threaded connection with the universal annular plate weldment 1, the other end of the trapezoidal screw is assembled with the welding head 4, and the welding head 4 is welded with the outer wall of the cylindrical part 8, so that the shrinkage and expansion of the outer wall of the cylindrical part 8 are limited, and the purpose of preventing welding deformation is achieved.

The assembly method of the utility model is as follows:

before the cylindrical part 8 is welded, the general annular plate weldment 1 and the special connecting block 2 are assembled into a polygon on the flat ground, a polygonal rigid body is formed by positioning through the pin shaft 6 and screwing through the bolt 7, then the polygonal rigid body is integrally hoisted to the outer side of the cylindrical part 8, each welding head 4 is sequentially contacted with the outer wall of the cylindrical part 8 by screwing each trapezoidal screw 3, and the welding is carried out, so that riveting and welding of each rib plate in the cylindrical part 8 are carried out, and the deformation-preventing support of the cylindrical part 8 is realized.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made by those skilled in the art within the scope of the utility model, which also falls within the scope of the appended claims.

Claims (8)

1. The utility model provides a large-scale cylindric spare welding of combination shape frock of preapring for an unfavorable turn of events which characterized in that: the welding device comprises a general ring plate welding piece (1), a special connecting block (2), trapezoidal screws (3) and welding heads (4), wherein a plurality of general ring plate welding pieces (1) are connected through the special connecting block (2) to form a polygonal rigid body; one end of the trapezoidal screw (3) is connected with the universal annular plate welding piece (1), the other end of the trapezoidal screw (3) is connected with the welding head (4), and the welding head (4) is welded with the outer wall of the cylindrical piece (8); the polygonal rigid body is connected to the outer circumferential side of the cylindrical part (8) by means of the trapezoidal screw (3) and the welding head (4).

2. The combined large-sized cylindrical part welding deformation-preventing tool according to claim 1, wherein: the universal annular plate weldment (1) comprises a flange plate (11) and a web plate (12) which are vertically connected, wherein connecting holes (111) are formed in two ends of the flange plate (11) and are used for being connected with the special connecting block (2), and trapezoid threaded holes (121) are formed in the web plate (12) and are used for being connected with the trapezoid screw rods (3).

3. The combined large-sized cylindrical part welding deformation-preventing tool as claimed in claim 2, wherein: the flange plate (11) comprises a main body area connected with the web plate (12) and a connecting area provided with the connecting hole (111), and two ends of the main body area protrude out of the connecting area to form a first stop edge (112).

4. The combined large-sized cylindrical part welding deformation-preventing tool as claimed in claim 2, wherein: the special connecting block (2) is provided with a threaded hole (22) corresponding to the connecting hole (111), and the special connecting block (2) is connected with the universal annular plate weldment (1) through a bolt (7).

5. The combined large-sized cylindrical part welding deformation-preventing tool as claimed in claim 2, wherein: the special connecting block (2) is provided with a pin hole (21) and a threaded hole (22) which correspond to the connecting hole (111), and the special connecting block (2) is connected with the universal annular plate weldment (1) through a pin shaft (6) and a bolt (7).

6. The combined large-sized cylindrical part welding deformation-preventing tool according to claim 4 or 5, wherein: the middle part of the bottom surface of the special connecting block (2) protrudes out of two ends of the bottom surface of the special connecting block (2) to form a second stop edge (23), and the second stop edge (23) is positioned between two adjacent universal annular plate weldments (1).

7. The combined large-sized cylindrical part welding deformation-preventing tool according to claim 1, wherein: one end of the trapezoidal screw (3) is in threaded connection with the universal annular plate welding piece (1), and the other end of the trapezoidal screw (3) is in rotary connection with the welding head (4).

8. The combined large-sized cylindrical part welding deformation-preventing tool as claimed in claim 7, wherein: the welding head (4) is provided with a groove (41) for installing the trapezoidal screw (3), the other end of the trapezoidal screw (3) is connected with the welding head (4) through the cover plate (5), and the diameter of the other end of the trapezoidal screw (3) is smaller than that of the groove (41).

Images