A kind of raised seat tailor-welding saddle position tooling

Abstract

The application provides a kind of raised seat tailor-welding saddle position tool, comprising: two hinged mounting tables, the connecting structure for being detachably connected between two mounting tables is provided, the movable table plate is slid on the face of two mounting tables opposite each other, the movable table plate is used to be connected with the flange corresponding to the raised seat, it can be moved towards or away from another mounting table relative to corresponding mounting table, the second connecting structure for being detachably connected between movable table plate and its corresponding mounting table is provided, at least one group of fixing hole groups for being connected with the flange of raised seat is opened on movable table plate, the center axis of each group of fixing hole groups is projected on the projection line of the surface of movable table plate to form an imaginary circle, the normal line of the center of gravity of two movable table plates through its corresponding imaginary circle is in the same vertical plane.The tool has strong versatility, can reduce the number of supporting tools and land occupation, and shorten the production preparation period, improve work efficiency.

Description

Technical Field

[0001] This invention specifically relates to a tooling for welding a raised seat saddle. Background Technology

[0002] The riser mount is a casing component of a power transformer. It is a crucial component that supports and secures the transformer's outgoing line assembly. It not only provides physical protection for the internal insulation components but also serves to install and fix the bushings. A typical riser mount consists of two annular flanges 1 at the ends and 2-3 sections of cylindrical walls 2 with beveled joints (see [reference]). Figure 1 The flange has evenly distributed perforations along its diameter φ for mounting the riser itself and fixing sleeves on it. When designing the riser, in addition to providing the flange mounting dimension φ, the included angle β between the normal centerlines of the two flanges and the distances H1 and H2 between the mounting surfaces of the two flanges and the intersection of these two normal centerlines are usually given. Typically, the value of φ is selected from several fixed constants, and the size, number, and distribution angle of the perforations are basically constant. The included angle β is usually one of three constants: 90°, 95°, and 100°, but the dimensions H1 and H2 are variable. During welding, to ensure the above dimensions, a corresponding welding saddle is generally made corresponding to the included angle β. The tooling consists of a horizontal platform 3 with an included angle α = 180 - β and a vertical platform 4 (see...). Figures 2-4 Based on β, H1, and H2, calculate the values ​​of L1 and L2 (i.e., the intersection line of the two flange mounting surfaces). Figure 2 The distance between the centerline (shown at point Y) and the centerline passing through the center of the distribution circle of each flange mounting surface and parallel to the above intersection line is L1 = (H2 - H1 × Cosβ) ÷ Sinβ, L2 = (H1 - H2 × Cosβ) ÷ Sinβ. See [reference] Figure 1 Then, the flange center is determined on the platform 3 and the vertical platform 4 according to the values ​​L1 and L2, respectively. Several threaded holes or smooth holes that match the flange hole positions are made according to the diameter φ. The flange is fixed with fasteners, and then the welding and assembly of the cylindrical wall is completed. This welding saddle tooling has the following disadvantages: due to the change of included angle β, several sets of tooling need to be prepared. When encountering an uncommon angle, it is necessary to spend a long time to specially make the saddle; for each value of L1 and L2, it is necessary to temporarily mark lines and make holes on the platform 3 and the vertical platform 4, and the production preparation cycle is long. In particular, after the same platform is used many times, it is riddled with holes, and interference often occurs due to the overlapping of hole positions (see Figure 3 and Figure 4 Therefore, it is necessary to weld the holes and then re-drill them, which is time-consuming and labor-intensive. In addition, the storage of different saddle tooling also requires a lot of space, which is very uneconomical. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a universal lifting seat welding saddle tooling to address the above-mentioned deficiencies in the prior art, thereby reducing the number of supporting tooling and the floor space occupied, shortening the production preparation cycle, and improving work efficiency.

[0004] The technical solution adopted to solve the technical problem of this invention is:

[0005] This invention provides a welding saddle fixture for a riser seat, comprising: a first mounting platform and a second mounting platform. The first mounting platform is arranged horizontally, and the second mounting platform is arranged vertically and hinged to the upper end of the first mounting platform via a hinge shaft. The second mounting platform is capable of rotating relative to the first mounting platform in a vertical plane. A first connecting structure is provided between the two mounting platforms for detachably connecting them.

[0006] Movable platforms are slidably mounted on the surfaces of two mounting platforms facing each other. These movable platforms are connected to flanges corresponding to the riser seats and can move relative to the respective mounting platform toward or away from the other mounting platform. A second connecting structure is provided between the movable platform and its corresponding mounting platform for detachably connecting the two.

[0007] The movable platform is provided with at least one set of fixing holes for connecting with the flange of the lifting seat. The projection of the central axis of the fixing holes of each set onto the surface of the movable platform forms an imaginary circle. The normals of the two movable platforms passing through the center of their respective imaginary circles are in the same vertical plane.

[0008] Optionally, the mounting platform has a first scale, which is perpendicular to the hinge axis, and the zero point of the first scale is located on the central axis of the hinge axis.

[0009] A first pointer is provided on the movable platform corresponding to the mounting platform. When the movable platform slides, it causes the first pointer to move on the first scale. The projection of the center of the imaginary circle on the movable platform onto the first pointer is located on the central axis of the first pointer.

[0010] Optionally, the fixing hole group on the movable platform corresponds to the flange hole group on at least one specification of the riser flange, and / or,

[0011] The movable platform is equipped with a radial adjustment structure.

[0012] The radial adjustment structure includes a fixed base and a movable base. The fixed base is detachably connected to the movable platform through at least one fixing hole.

[0013] The movable seat is slidably mounted on the fixed seat and can slide radially relative to the fixed seat along an imaginary circle on the movable platform. A third connecting structure is provided between the movable seat and the fixed seat for detachably connecting the two.

[0014] The movable base is provided with a connection hole for connecting to the flange of the lifting base.

[0015] The fixed base is provided with a second scale, and the movable base is provided with a second pointer. The projection of the central axis of the connecting hole onto the second pointer coincides with the central axis of the second pointer. When the movable base slides, it drives the second pointer to move on the second scale.

[0016] Optionally, the third connection structure includes a first nut, a first screw, a first threaded groove, a second threaded groove, and a receiving groove. The first threaded groove is formed on the movable seat, the second threaded groove is formed on the end face of the fixed seat facing the movable seat, and the receiving groove is formed on the end of the fixed seat facing away from the movable seat. The first threaded groove, the second threaded groove, and the receiving groove all extend along the sliding direction of the movable seat and are connected in sequence. The first nut is slidably disposed in the receiving groove, and the first screw is threadedly connected to the first threaded groove, the second threaded groove, and the first nut respectively to lock the movable seat and the fixed seat.

[0017] Optionally, multiple radial adjustment structures are provided, and these multiple radial adjustment structures are distributed at circumferential intervals along an imaginary circle on the movable platform, or...

[0018] The movable seats are provided in multiple ways, and the multiple movable seats are distributed at intervals along the circumference of an imaginary circle on the movable platform.

[0019] Optionally, the first connecting structure includes an adjusting rod, which is a telescopic rod hinged between two mounting platforms, and the central axis of the adjusting rod is perpendicular to the central axis of the hinge shaft; and / or,

[0020] The first connecting structure includes a positioning rod, a first hinge seat on one mounting platform, a second hinge seat on the other mounting platform, and a plurality of hinge holes on the second hinge seat. The positioning rod is hinged between one of the hinge holes of the first and second hinge seats, and the central axis of the positioning rod is perpendicular to the central axis of the hinge shaft.

[0021] Optionally, a drive mechanism for driving the movable platform to slide is also provided between the movable platform and its corresponding mounting platform.

[0022] Optionally, the mounting platform is a frame structure, the driving mechanism includes a screw and a nut seat, the screw is arranged perpendicular to the hinge axis and rotatably connected to the middle of the mounting platform, and a driving handle or driving component is provided at the end away from the other mounting platform, the nut seat is threadedly connected to the screw, and the movable platform is supported on the nut seat.

[0023] Optionally, the second connection structure includes a guide rail and a guide block.

[0024] The guide rail is arranged perpendicular to the hinge axis and fixedly connected to the mounting platform. The movable platform slides on the guide rail. The guide rail has a guide groove extending along its length. The guide block slides in the guide groove. The movable platform is supported on the guide block. The movable platform and the guide block are connected by fasteners.

[0025] Optionally, the guide rail is provided with two rails, which are respectively located on both sides of the screw in the radial direction. Each guide rail has two guide blocks, which are respectively located on both sides of the nut seat in the axial direction of the guide rail.

[0026] In this invention, by hinged connecting the water platform and the vertical platform, it can accommodate the welding of riser seats with different flange angles. Furthermore, by providing a sliding movable platform on both the water platform and the vertical platform, with a set of fixing holes for positioning and detachably connecting the riser seat flange, it can accommodate the welding of riser seats with different spacing between the intersection points of the flange normal centerlines. This tooling is highly versatile, reducing the number of supporting tooling and floor space required, shortening the production preparation cycle, and improving work efficiency. Attached Figure Description

[0027] Figure 1 A schematic diagram of a common power transformer riser;

[0028] Figure 2 A schematic diagram of the pre-welding saddle fixture for improvement;

[0029] Figure 3 for Figure 2 The top view shows that, apart from the four holes on the distribution circle φ, the other openings are remnants from multiple uses of the tooling before its creation.

[0030] Figure 4 for Figure 2 In the A-direction view, apart from the 8 holes on the distribution circle φ, the other openings are remnants from multiple uses of the tooling before its creation.

[0031] Figure 5 This is a top view of the lifting seat welding saddle tooling of Embodiment 1 of the present invention (i.e., Figure 6 (C-C section view);

[0032] Figure 6 for Figure 5 Top view;

[0033] Figure 7 for Figure 5 The left view;

[0034] Figure 8 for Figure 5 A sectional view of plane A-A (hinge structure diagram on only one side);

[0035] Figure 9 This is a schematic diagram of the adjusting rod;

[0036] Figure 10 for Figure 9 Left view (full section along the center);

[0037] Figure 11 This is a schematic diagram of the T-shaped guide block.

[0038] Figure 12 for Figure 11 The left view;

[0039] Figure 13 for Figure 11 Top view;

[0040] Figure 14 for Figure 6 Sectional view of plane B-B in the middle;

[0041] Figure 15 for Figure 14 Sectional view of plane C-C in the middle;

[0042] Figure 16 for Figure 6 The M-direction view in the middle;

[0043] Figure 17 for Figure 7 The N-direction view in the middle;

[0044] Figure 18 This is a schematic diagram of the welding saddle fixture of Example 1 applied to a riser seat to be welded at β = 95°.

[0045] Figure 19 This is a schematic diagram of the radial adjustment seat.

[0046] Figure 20 for Figure 19 Top view;

[0047] Figure 21 for Figure 19 AA cross-section view.

[0048] In the diagram: 1 - Elevation seat flange; 2 - Cylindrical wall; 3 - Water platform; 4 - Vertical platform; 5 - First mounting platform; 6 - Second mounting platform; 7 - Adjusting rod; 8 - Positioning rod; 9 - Movable platform; 10 - Screw; 11 - Hinge shaft; 12 - Second hinge seat; 13 - Pin.

[0049] 14 – Guide block; 15 – Guide rail; 16 – Bolt; 17 – Second nut; 18 – Nut seat;

[0050] 19 – Second scale; 25 – Second scale; 20 – First pointer; 21 – Wire hole;

[0051] 22 – Pin hole; 23 – Fixed seat; 24 – Moving seat; 26 – Insert pin; 27 – First screw;

[0052] 28 – Second screw; 29 – Threaded hole; 30 – First nut. Detailed Implementation

[0053] The technical solutions of the invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without creative effort are within the scope of the invention.

[0054] In the description of this invention, it should be noted that the use of terms such as "above" to indicate orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings and is only for the purpose of facilitating and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0055] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "setting," "installation," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0057] This invention provides a welding saddle fixture for a riser seat, comprising: a first mounting platform and a second mounting platform. The first mounting platform is arranged horizontally, and the second mounting platform is arranged vertically and hinged to the upper end of the first mounting platform via a hinge shaft. The second mounting platform is capable of rotating relative to the first mounting platform in a vertical plane. A first connecting structure is provided between the two mounting platforms for detachably connecting them.

[0058] Movable platforms are slidably mounted on the surfaces of two mounting platforms facing each other. These movable platforms are connected to flanges corresponding to the riser seats and can move relative to the respective mounting platform toward or away from the other mounting platform. A second connecting structure is provided between the movable platform and its corresponding mounting platform for detachably connecting the two.

[0059] The movable platform is provided with at least one set of fixing holes for connecting with the flange of the lifting seat. The projection of the central axis of the fixing holes of each set onto the surface of the movable platform forms an imaginary circle. The normals of the two movable platforms passing through the center of their respective imaginary circles are in the same vertical plane.

[0060] Example 1:

[0061] like Figures 5-21 As shown, this embodiment provides a welding saddle fixture for a raised seat, including: a first mounting platform 5 and a second mounting platform 6. The first mounting platform 5 is arranged horizontally, and the second mounting platform 6 is arranged vertically and hinged to the upper end of the first mounting platform 5 via a hinge shaft 11. It can rotate relative to the first mounting platform 5 in a vertical plane. A first connecting structure is provided between the two mounting platforms for detachably connecting them.

[0062] Movable platform 9 slides on the surfaces of two mounting platforms facing each other. The movable platform 9 is used to connect with the flange corresponding to the riser. It can move relative to the corresponding mounting platform toward or away from the other mounting platform. A second connecting structure is provided between the movable platform 9 and its corresponding mounting platform for detachably connecting the two.

[0063] The movable platform 9 has at least one set of fixing holes for connecting with the flange of the lifting seat. The projection of the central axis of the fixing holes of each set onto the surface of the movable platform 9 forms an imaginary circle. The normals of the two movable platforms 9 passing through the center of their respective imaginary circles are in the same vertical plane.

[0064] Therefore, by hinged connecting the water platform (first mounting platform 5) and the vertical platform (second mounting platform 6), it is possible to accommodate the welding of riser seats with different flange included angles (β). Furthermore, by setting a sliding movable platform 9 on the water platform and the vertical platform, with a set of fixing holes to position the riser seat flange and detachably connect it, it is possible to accommodate the welding of riser seats with different flange normal centerline intersection point spacing dimensions (H1, H2). This tooling is highly versatile, can reduce the number of supporting tooling and the floor space, shorten the production preparation cycle, and improve work efficiency.

[0065] In this embodiment,

[0066] The mounting platform has a first scale 19, which is perpendicular to the hinge shaft 11, and the zero point of the first scale 19 is located on the central axis of the hinge shaft 11.

[0067] The movable platform 9 corresponding to the mounting platform has a first pointer 20. When the movable platform 9 slides, it drives the first pointer 20 to move on the first scale 19. The projection of the center of the imaginary circle on the movable platform 9 onto the first pointer 20 is located on the central axis of the first pointer 20.

[0068] Based on the known angle β between the normal centerlines of the two flanges of the riser and the distances H1 and H2 between the mounting surfaces of the two flanges and the intersection of the two normal centerlines, the distances L1 and L2 between the intersection line of the two flange mounting surfaces and the centerline passing through the center of the distribution circle of each flange mounting surface and parallel to the above intersection line can be calculated using the formulas L1 = (H2 - H1 × Cosβ) ÷ Sinβ and L2 = (H1 - H2 × Cosβ) ÷ Sinβ. L1 and L2 can be easily read by moving the first pointer 20 on the first scale 19 when the movable platform 9 slides.

[0069] In this invention:

[0070] The fixing hole group on the movable platform 9 corresponds to the flange hole group on at least one specification of the riser flange, and / or,

[0071] The movable platform 9 is equipped with a radial adjustment structure.

[0072] The radial adjustment structure includes a fixed base 23 and a movable base 24. The fixed base 23 is detachably connected to the movable platform 9 through at least one fixing hole.

[0073] The movable seat 24 is slidably mounted on the fixed seat 23 and can slide radially relative to the fixed seat 23 along an imaginary circle on the movable platform 9. A third connecting structure is provided between the movable seat 24 and the fixed seat 23 for detachably connecting the two.

[0074] The movable base 24 has a connection hole 29 for connecting to the flange of the riser base.

[0075] The fixed base 23 is provided with a second scale 25, and the movable base 24 is provided with a second pointer. The projection of the central axis of the connecting hole 29 onto the second pointer coincides with the central axis of the second pointer. When the movable base 24 slides, it drives the second pointer to move on the second scale.

[0076] In other words, this invention provides three positioning and installation methods for riser flanges that are adapted to different installation dimensions (φ):

[0077] First, multiple sets of fixing holes are opened with an imaginary circle as the center, which are matched with the flange holes on flanges of various installation sizes φ. Since the fixing hole sets are all circumferentially spaced with the imaginary circle as the center, there will be no phenomenon of overlapping and interference of hole positions when the φ specification is limited.

[0078] Secondly, the fixed hole group serves as a connection hole group between the movable platform 9 and the radial adjustment structure on one hand, and the central axis of the fixed hole serves as the zero point positioning line of the second scale 25 on the other hand. By dividing the imaginary circle diameter ± flange installation dimension φ by 2, the movement dimension of the second pointer (corresponding to the center line of the flange hole on the flange) relative to the positioning line can be calculated. By sliding the movable seat 24 relative to the fixed seat 23, the second pointer can be moved on the second scale, and the movement dimension of the second pointer relative to the positioning line can be obtained very easily.

[0079] Third, the above two methods are combined to accommodate the welding of riser seats with more flange installation dimensions φ.

[0080] In this embodiment, a third method is adopted, in which the fixing hole group on the movable platform 9 is divided into four groups, forming four imaginary circles arranged concentrically. Two of these groups are threaded holes 21 with the same diameter as the distribution circle of the flange holes to be welded, and the other two groups are positioning pin holes 22, used to connect with the radial adjustment structure. The two groups of threaded holes 21 are located between the two groups of pin holes 22.

[0081] In this embodiment, the third connection structure includes a first nut 30, a first screw 27, a first threaded groove, a second threaded groove, and a receiving groove. The first threaded groove is formed on the movable seat 24, the second threaded groove is formed on the end face of the fixed seat 23 facing the movable seat 24, and the receiving groove is formed on the end of the fixed seat 23 facing away from the movable seat 24. The first threaded groove, the second threaded groove, and the receiving groove all extend along the sliding direction of the movable seat 24 and are connected in sequence. The first nut 30 is slidably disposed in the receiving groove. The first screw 27 is threadedly connected to the first threaded groove, the second threaded groove, and the first nut 30 respectively to lock the movable seat 24 and the fixed seat 23.

[0082] The above method cleverly conceals the first screw 27 and the first nut 30 in the slot, without occupying the normal dimension of the movable platform. Therefore, when converting the H1 and H2 of the riser to be welded into L1 and L2 values, only the height dimension h of the radial adjustment structure needs to be considered, which improves the accuracy of the dimension conversion.

[0083] In this embodiment, to improve the stability of the flange positioning installation, multiple adjustment structures are provided. These multiple adjustment structures are distributed at intervals along the circumference of an imaginary circle on the movable platform 9, or...

[0084] Multiple movable seats 24 are provided, and the multiple movable seats 24 are distributed circumferentially along the imaginary circle on the movable platform 9.

[0085] In this invention, the first connecting structure includes an adjusting rod 7, which is a telescopic rod hinged between two mounting platforms. The central axis of the adjusting rod 7 is perpendicular to the central axis of the hinge shaft 11; and / or,

[0086] The first connecting structure includes a positioning rod 8, a first hinge seat on one mounting platform, and a second hinge seat 12 on the other mounting platform. The second hinge seat 12 has multiple hinge holes. The positioning rod 8 is hinged between one of the hinge holes of the first hinge seat and the second hinge seat 12. The central axis of the positioning rod 8 is perpendicular to the central axis of the hinge shaft 11.

[0087] That is, this embodiment provides three methods to accommodate weldable risers with different included angles (β) between normal centerlines:

[0088] One is the stepless adjustment method, which uses the extension and retraction of the lifting rod to adjust the included angle α between the two mounting platforms, thereby achieving the purpose of adjusting β (α=180-β). The angle α can be quickly obtained by adding an angle measuring device.

[0089] Secondly, a positioning rod of a certain length and a second hinge seat 12 of different heights are used to adapt to the limited β specification of the riser to be welded.

[0090] Thirdly, an adjusting rod 7 and a positioning rod 8 are used. In this method, the adjusting rod 7 only assists in adjusting α to a certain angle from the positioning rod 8. The positioning rod 8 then locks α at that angle. This embodiment uses the third method.

[0091] In this embodiment, a driving mechanism for driving the movable platform 9 to slide is also provided between the movable platform 9 and its corresponding mounting platform.

[0092] In this embodiment, the mounting platform is a frame structure, and the driving mechanism includes a screw 10 and a nut seat 18. The screw 10 is arranged perpendicular to the hinge shaft 11 and rotatably connected to the middle of the mounting platform. The end of the screw 10 away from the other mounting platform is provided with a driving handle or driving component. The nut seat 18 is threadedly connected to the screw 10, and the movable platform 9 is supported on the nut seat 18.

[0093] In this embodiment, the second connecting structure includes a guide rail 15 and a guide block 14.

[0094] The guide rail 15 is arranged perpendicular to the hinge axis 11 and is fixedly connected to the mounting platform. The movable platform 9 is slidably mounted on the guide rail 15. A guide groove extending along its length is provided in the guide rail 15. The guide block 14 is slidably mounted in the guide groove. The movable platform 9 is supported on the guide block 14. The movable platform 9 and the guide block 14 are connected by fasteners.

[0095] In this embodiment, there are two guide rails 15, which are respectively located on both sides of the screw 10 in the radial direction. Each guide rail 15 has two guide blocks 14, which are respectively located on both sides of the nut seat 18 in the axial direction of the guide rail 15.

[0096] In summary, the main body of the lifting seat welding saddle tooling in this embodiment consists of a water platform (first mounting platform 5), a vertical platform (second mounting platform 6), an adjusting rod 7, a positioning rod 8, a movable platform 9 and its driving mechanism, a radial adjustment structure, etc. The water platform and the vertical platform are connected by hinges, and the angle between them is adjusted by adjusting rod 7 and can be positioned and locked by positioning rod 8. Each of the water platform and the vertical platform has a movable plate 9 and a screw and nut driving mechanism. The position of the movable plate 9 on the water platform and the vertical platform can be adjusted by the driving mechanism. The movable plate 9 has a threaded hole 21 with the same diameter as the distribution circle of the flange holes of the riser seat to be welded. In addition, a positioning pin hole 22 is also made on the movable plate 9 circumferentially with the distribution circle as the center. A first scale 19 is embedded on the side of the water platform and the vertical platform, and the value on it reflects the distance between the point and the hinge center. A first pointer is arranged on the side of the movable plate 9 to indicate the center position of the distribution circle of the threaded hole 21 on the movable plate 9. In addition, the present invention also includes a radial adjustment structure, which is also marked with scale values. The radial adjustment structure can be installed on the pin hole 22 of the movable plate 9 by positioning pin. When welding the riser seats, the values ​​of α, L1, and L2 are calculated based on β, H1, and H2 of the riser seats to be welded. The included angle between the horizontal platform and the vertical platform is adjusted to α and locked using adjusting rod 7 and positioning rod 8. Then, the position of the movable platform 9 on the horizontal platform and the vertical platform is adjusted using the screw and nut drive mechanism until the values ​​of L1 and L2 are reached. At this point, the flange of the riser seat to be welded is installed on the two movable platforms 9, allowing for the welding and assembly of the cylindrical wall. When supplemented with the aforementioned radial adjustment structure, the range of riser seat flanges suitable for welding can be further expanded. This allows the tooling to meet the welding needs of riser seats with different angles and sizes.

[0097] The following Examples 2-5 are several examples of welding of the riser using Example 1:

[0098] Example 2:

[0099] In this embodiment, the parameters of the riser to be welded are: β = 90°, H1 = 875mm, H2 = 1200mm, φ = 1440mm.

[0100] like Figures 5-7 As shown, the main body of the water platform (first mounting platform 5) and the vertical platform (second mounting platform 6) is a rectangular tube, and each has two sets of guide rails 15. The water platform and the vertical platform are connected by two sets of hinges 11 (see...). Figure 8 ); There are two of each of the adjusting rod 7 and the positioning rod 8 (regarding Figure 6 There is one piece on each side of the C-C symmetrical arrangement, with the center of the adjusting rod and positioning rod on each side at... Figure 5(They are all on the same plane) and are connected to the platform and the fixed hinge seat on the vertical platform by pins. In this example, the positioning rod 8 is a flat steel with pin holes at both ends. It has three hinge holes on the second hinge seat 12 on the vertical platform. Through the pin 13, the positioning rod 8 can be connected to any one of the hinge holes in the second hinge seat 12. Figure 5 In the middle, when the positioning rod 8 is connected to the three hinge holes from top to bottom, the angles between the corresponding water platform and the vertical platform are 90°, 85° and 80° respectively; there are two movable platform plates 9, each containing two rings of evenly distributed threaded holes 21 commonly used for welding the raised seat flange, with a distribution circle diameter of φ = 1440mm. In addition, with the center of this distribution circle as the center, two rings of pin holes 22 for positioning are also evenly distributed along the circumference on the movable platform plate 9; each movable platform plate is fastened to the guide rails 15 of the water platform and the vertical platform by four T-shaped guide blocks 14 (see Figure 14 , Figure 15 The movable platform 9 can be locked at any position with bolts 16 and square nuts (second nuts 17); the position of the movable platform 9 on the water platform and the vertical platform can be adjusted by the drive mechanism installed on each platform (when the screw 10 rotates, the nut seat 18 installed at the bottom of the movable platform 9 moves along the axial direction of the screw 10, driving the movable platform 9 to move); in addition, a first scale 19 is embedded on the side of the water platform and the vertical platform, and the value of any point on it reflects the distance between the point and the central axis of the hinge shaft 11, while a first pointer 20 is fixed on the side of the movable platform 9, and the position of the pointer line is the projection line of the center normal of the distribution circle of the wire holes 21 on the movable platform 9 on the side of the platform.

[0101] During the welding of the riser seats, based on β, H1, and H2 of the riser seats to be welded, it is easy to see that: α = 90°, L1 = H2 = 1200mm, and L2 = H1 = 875mm. Observe whether the positioning rod 8 and the second hinge seat 12 are pinned together in the uppermost hinge hole. Figure 5 If not, pull out pin 13, adjust the included angle between the platform and the vertical platform using the adjusting rod 7 until the positioning rod 8 and the vertical platform are pinned and locked by pin 13 in the uppermost hinge hole of the second hinge seat 12; loosen bolt 16, and adjust the positions of the two movable platform plates 9 on the platform and the vertical platform using the screw and nut drive mechanism until the values ​​of L1 and L2 are reached (as shown). Figure 16 , Figure 17 (The pointer indicates the state). At this point, tighten bolt 16 to lock the movable platform 9 onto the horizontal platform and the vertical platform; use fasteners to install the flanges at both ends of the riser to be welded onto the corresponding threaded holes 21 on the movable platform, and then the cylindrical wall of the riser to be welded can be assembled and welded. After completion, remove the fasteners of the flanges and lift the welded riser apart.

[0102] Example 3:

[0103] In this embodiment, the parameters of the riser to be welded are: β = 95°, H1 = 875 mm, H2 = 1200 mm, φ = 1440 mm.

[0104] Based on the conversion of β, H1, and H2 of the riser to be welded, we get: α = 85°, L1 = 1281.1 mm, L2 = 983.3 mm.

[0105] like Figure 18 The welding saddle fixture structure and operation shown are the same as in Embodiment 2. The difference from Embodiment 2 is that when adjusting the angle between the platform and the vertical platform using the adjusting rod 7, it is necessary to adjust the positioning rod 8 and the vertical platform so that they can be pinned and locked by the pin 13 in the hinge hole in the middle of the second hinge seat 12. Figure 18 (as shown in the figure); in addition, when adjusting the position of the two movable platforms 9 on the water platform and the vertical platform through the drive mechanism, the L1 and L2 values ​​in this embodiment should be satisfied.

[0106] Example 4:

[0107] In this embodiment, the parameters of the riser to be welded are: β = 95°, H1 = 875mm, H2 = 1200mm, φ = 1170mm.

[0108] Although the values ​​of β, H1, and H2 of the riser seat to be welded are the same as in Example 3, the φ of the riser seat flange is not a commonly used value. Therefore, during the welding process, as in... Figure 18 The welding saddle fixture shown requires the use of the radial adjustment structure mentioned in this invention (see [link]). Figures 19-21 In this embodiment, the radial adjustment seat body consists of a fixed seat 23 and a movable seat 24. The fixed seat 23 is a strip with a trapezoidal cross-section, with a continuous countersunk groove at its upper part and an inverted T-shaped groove in its lower middle section. Two pins 26 are embedded in the fixed seat 23, and their distance values ​​match the distance values ​​of the two radial pin holes 22 on the movable platform 9 for positioning. The fixed seat 23 also has internal hexagon screws 28 fitted into two countersunk screw holes, and their center distance values ​​match the distance values ​​of the two radial threaded holes 21 on the movable platform 9. A second scale 25 is embedded on one side of the trapezoidal inclined side of the fixed seat 23, and the value of a certain point on it reflects the distance value between that point and the center line of the outermost countersunk screw hole. The movable seat 24 is a T-shaped block, and its lower part mates with the continuous countersunk groove at the upper part of the fixed seat 23 (see...). Figure 21The movable seat 24 has two countersunk screw holes and three connecting holes 29 that match the mounting holes of the flange of the riser to be welded. The movable seat 24 can be fixed and locked in the inverted T-slot of the fixed seat 23 by means of hexagon socket screws (first screw 27) and square nuts (first nut 30). Three pointer lines are also engraved on the side of the movable seat 24, which are the projection lines of the center lines of the three connecting holes 29 on the side of the movable seat. In use, 4 to 8 of these radial adjustment structures are evenly inserted into the two radial pin holes 22 on the movable platform 9 for positioning by means of two pins 26 on the fixed seat 23 (so that the 0 line of the scale is on the side away from the normal line of the distribution circle of the pin holes on the movable platform 9), and fixed in the threaded hole 21 of the movable platform 9 by hexagon socket screws (second screw 28). Adjust the position of the movable seat 24 on the fixed seat 23 so that a pointer line on the upper side of the movable seat 24 points to the 135mm scale value on the second scale 25 on the side of the fixed seat 23, and lock it with an internal hex screw (first screw 27) and a square nut (first nut 30). At this time, the connecting hole 29 on the movable seat 24 corresponding to the scale value is located on the φ1170mm distribution circle on the movable platform 9.

[0109] It should be noted here that, due to the addition of a radial adjustment seat, when converting the L1 and L2 values ​​based on the H1 and H2 of the riser to be welded, the height dimension h of the radial adjustment seat must be taken into account (see [reference]). Figure 19 , Figure 21 The effect is that when substituting H1 and H2 into the calculation, h needs to be added. For example, in practical applications, h = 70, which translates to L1 = 1357.5mm and L2 = 1059.7mm. The position of the movable platform 9 on the water platform and the vertical platform needs to be adjusted accordingly. This is also the difference between this and Example 2.

[0110] Example 4:

[0111] In this embodiment, the parameters of the riser to be welded are: β = 105°, H1 = 875mm, H2 = 1200mm, φ = 1440mm.

[0112] Based on the conversion of β, H1, and H2 of the riser to be welded, we get: α = 75°, L1 = 1476.8 mm, L2 = 1227.4 mm.

[0113] At this point, the welding saddle fixture, except for a slight change in α, still maintains the same main structural shape as before. Figure 18Similarly, the operation method is the same as in Embodiment 3. The difference is that, because the pin holes at both ends of the original positioning rod 8 in Embodiment 3 could not determine the included angle between the platform and the platform corresponding to α = 75° when hinged to the three hinge holes of the second hinge seat 12 on the platform, a special positioning rod is required in this embodiment. Once a hinge hole of the second hinge seat 12 is determined, the distance between the pin holes at both ends of this special positioning rod can be calculated or drawn. Then, when adjusting the included angle between the platform and the platform using the adjusting rod 7, the position determined by this special positioning rod must be satisfied.

[0114] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A tooling for welding a riser seat saddle, characterized in that, include: A first mounting platform (5) and a second mounting platform (6) are provided. The first mounting platform (5) is arranged horizontally, and the second mounting platform (6) is arranged vertically and is hinged to the upper end of the first mounting platform (5) via a hinge shaft (11). The second mounting platform (6) can rotate relative to the first mounting platform (5) in a vertical plane. A first connecting structure is provided between the two mounting platforms for detachably connecting them. Movable platform plates (9) are slidably mounted on the surfaces of two mounting platforms facing each other. The movable platform plates (9) are used to connect with flanges corresponding to the riser seats. They can move relative to the corresponding mounting platform toward or away from the other mounting platform. A second connecting structure is provided between the movable platform plates (9) and their corresponding mounting platforms for detachably connecting the two. The movable platform (9) is provided with at least one set of fixing holes for connecting with the flange of the lifting seat. The projection of the central axis of the fixing holes of each set of fixing holes onto the surface of the movable platform (9) forms an imaginary circle. The normals of the two movable platforms (9) passing through the center of their respective imaginary circles are in the same vertical plane. The fixing hole group on the movable platform (9) corresponds to the flange hole group on at least one type of riser flange. The movable platform (9) is provided with a radial adjustment structure. The radial adjustment structure includes a fixed base (23) and a movable base (24). The fixed base (23) is detachably connected to the movable platform (9) through at least one fixing hole. The movable seat (24) is slidably mounted on the fixed seat (23) and can slide radially relative to the fixed seat (23) along an imaginary circle on the movable platform (9). A third connecting structure is provided between the movable seat (24) and the fixed seat (23) for detachably connecting the two. The movable seat (24) is provided with a connection hole for connecting to the flange of the lifting seat. The fixed base (23) is provided with a second scale (25), and the movable base (24) is provided with a second pointer. The projection of the central axis of the connecting hole onto the second pointer coincides with the central axis of the second pointer. When the movable base (24) slides, it drives the second pointer to move on the second scale.

2. The lifting seat welding saddle fixture according to claim 1, characterized in that, The mounting platform has a first scale (19), which is perpendicular to the hinge shaft (11), and the zero point of the first scale (19) is located on the central axis of the hinge shaft (11). The movable platform (9) corresponding to the mounting platform has a first pointer (20). When the movable platform (9) slides, it drives the first pointer (20) to move on the first scale (19). The projection of the center of the imaginary circle on the movable platform (9) onto the first pointer (20) is located on the central axis of the first pointer (20).

3. The lifting seat welding saddle fixture according to claim 1, characterized in that, The third connection structure includes a first nut (30), a first screw (27), a first threaded groove, a second threaded groove, and a receiving groove. The first threaded groove is formed on the movable seat (24), the second threaded groove is formed on the end face of the fixed seat (23) facing the movable seat (24), and the receiving groove is formed on the end of the fixed seat (23) facing away from the movable seat (24). The first threaded groove, the second threaded groove, and the receiving groove all extend along the sliding direction of the movable seat (24) and are connected in sequence. The first nut (30) is slidably disposed in the receiving groove. The first screw (27) is threadedly connected to the first threaded groove, the second threaded groove, and the first nut (30) respectively to lock the movable seat (24) and the fixed seat (23).

4. The lifting seat welding saddle fixture according to claim 1, characterized in that, The radial adjustment structure is provided in multiple parts, and the multiple radial adjustment structures are distributed circumferentially at intervals along the imaginary circle on the movable platform (9), or, The movable seats (24) are provided in multiple ways, and the multiple movable seats (24) are distributed circumferentially along the imaginary circle on the movable platform (9).

5. The lifting seat welding saddle fixture according to any one of claims 1-4, characterized in that, The first connecting structure includes an adjusting rod (7), which is a telescopic rod hinged between two mounting platforms. The central axis of the adjusting rod (7) is perpendicular to the central axis of the hinge shaft (11); and / or, The first connection structure includes a positioning rod (8), a first hinge seat is provided on one mounting platform, and a second hinge seat (12) is provided on the other mounting platform. The second hinge seat (12) is provided with a plurality of hinge holes. The positioning rod (8) is hinged between one of the hinge holes of the first hinge seat and the second hinge seat (12). The central axis of the positioning rod (8) is perpendicular to the central axis of the hinge shaft (11).

6. The lifting seat welding saddle fixture according to any one of claims 1-4, characterized in that, A drive mechanism for driving the movable platform (9) to slide is also provided between the movable platform (9) and its corresponding mounting platform.

7. The lifting seat welding saddle fixture according to claim 6, characterized in that, The mounting platform is a frame structure. The driving mechanism includes a screw (10) and a nut seat (18). The screw (10) is arranged perpendicular to the hinge axis (11) and rotatably connected to the middle of the mounting platform. A driving handle or driving component is provided at one end away from the other mounting platform. The nut seat (18) is threadedly connected to the screw (10). The movable platform (9) is supported on the nut seat (18).

8. The lifting seat welding saddle fixture according to claim 7, characterized in that, The second connection structure includes a guide rail (15) and a guide block (14). The guide rail (15) is arranged perpendicular to the hinge axis (11) and fixedly connected to the mounting platform. The movable platform (9) is slidably mounted on the guide rail (15). A guide groove extending along its length is provided in the guide rail (15). The guide block (14) is slidably mounted in the guide groove. The movable platform (9) is supported on the guide block (14). The movable platform (9) and the guide block (14) are connected by fasteners.

9. The lifting seat welding saddle fixture according to claim 8, characterized in that, The guide rail (15) is provided in two sections, which are located on both sides of the screw (10) in the radial direction. Each guide rail (15) has two guide blocks (14), which are located on both sides of the nut seat (18) in the axial direction of the guide rail (15).

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