Auxiliary control device for assembling and forming large-diameter welded pipe
Through the auxiliary control device of the roller frame and the extrusion adjustment component, the problem of precise docking during the molding process of large-diameter welded pipe groups is solved, and efficient and accurate welding effect is achieved.
Patent Information
- Application Number
- CN202422121380.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-30
AI Technical Summary
During the molding process of large-diameter welded pipe group, the large diameter of the pipe section and the different thickness of the plate lead to inconsistent deformation during transportation and horizontal shelving, making it difficult to achieve accurate butt and angle adjustment, affecting the welding quality.
The auxiliary control device including two sets of roller frames and extrusion adjustment components is adopted to support the welded pipe through the roller frame and radially extrude the welded pipe connection ends using the extrusion adjustment components to ensure a flat fit, and then accurately docking is achieved under the drive of the axial translation operation table.
Accurate butt and efficient welding of large-diameter welded pipes are achieved, the welding quality is improved, and uneven surfaces caused by deformation during welding are avoided.
Smart Images
Figure CN223185923U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of large-diameter welded pipe alignment and forming, and specifically relates to an auxiliary control device for large-diameter welded pipe alignment and forming. Background Art
[0002] The alignment and forming of large-diameter welded pipes is a core section in the welding process of wind turbine towers. This process involves aligning and welding multiple pipe sections with different steel plate thicknesses and large diameters (such as d = 15m, etc.) respectively, and then forming a tower body with a length of more than 50m; according to the process requirements, the outer surface of the entire tower body must be smooth, that is, the outer surfaces of the joints between two adjacent pipe sections are smoothly connected, and the inner side needs to be chamfered at the connection end of the pipe section with a relatively thick plate, and then the two adjacent large-diameter pipe sections are aligned and welded; the current technical difficulty lies in: the alignment and docking operation before welding is cumbersome and it is difficult to achieve precise fitting of the docking surfaces; the reasons are as follows: (1) The pipe sections have large diameters and different plate thicknesses for each pipe section, and the circular pipe bodies have different deformations during transportation and horizontal placement, which in turn affects the precise matching degree of the docking of the two pipe sections; (2) When aligning each pipe section, the lengths of the two joints are very long, and it is very difficult to achieve fine adjustment of the angle and precise docking during the docking adjustment process of large-diameter and long-sized pipe sections. Content of the Utility Model
[0003] In view of the above deficiencies, the utility model provides an auxiliary control device for large-diameter welded pipe alignment and forming, which can achieve precise fitting and alignment between large-diameter pipes and has a good effect.
[0004] To achieve the above object, the utility model adopts the following technical solutions:
[0005] The auxiliary control device for large-diameter welded pipe alignment and forming includes two sets of roller racks, at least one set of the roller racks is arranged on the sliding seat of the axial translation operation table, and the axial translation operation table is used to drive one set of the roller racks to displace relative to the other set of the roller racks; each of the two sets of roller racks supports a welded pipe to be welded; it further includes an extrusion adjustment component, the extrusion adjustment component is arranged on the support ring, and the support ring is arranged between the two sets of roller racks; the support ring is fixed on the fixed seat of the axial translation operation table; a number of the extrusion adjustment components are arranged at intervals along the support ring to form a group, which is used to radially extrude the connection ends of the two welded pipes to be welded, so as to make the docking surfaces of the two welded pipes to be welded flat and fit. Optionally, the roller rack consists of a left roller rack and a right roller rack; both the left roller rack and the right roller rack can be slidably arranged in the left and right directions on the roller rack support; the roller rack support is arranged on the sliding seat.
[0006] Optionally, two sets of the extrusion adjustment components are provided, and the two sets of the extrusion adjustment components are arranged adjacent to each other along the axis.
[0007] Optionally, the extrusion adjustment component includes a telescopic cylinder, a connection component, and an arc-shaped roller pressing plate; the bottom surface of the arc-shaped roller pressing plate is arranged as an arc surface matching the surface of the to-be-welded pipe, and a plurality of rolling wheels or rolling beads are arranged on its bottom surface; the upper part of the arc-shaped roller pressing plate is detachably connected to the connection component; the upper part of the connection component is connected to the telescopic rod of the telescopic cylinder; the telescopic cylinder is fixed to the support ring.
[0008] Optionally, the connection component includes a connection seat, a T-shaped groove is arranged on the upper part of the connection seat, and a T-shaped connection head is clamped on the T-shaped groove; a piezoresistive resistance module is arranged between the T-shaped connection head and the bottom surface of the T-shaped groove; the upper part of the T-shaped connection head is connected to the telescopic rod of the telescopic cylinder.
[0009] Optionally, a pressure display module is arranged on the support ring, and the pressure display module is electrically connected to the piezoresistive resistance module.
[0010] Optionally, eight of the extrusion adjustment components form a group and are arranged in a circle at intervals of 45°. Optionally, a plurality of clamping holes are arranged axially on the sliding seat, and a synchronous pressure rod is detachably arranged on the clamping holes.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] By arranging a circle of extrusion adjustment components, the present utility model performs flatness extrusion adjustment on the outer surfaces of the connecting ends of two to-be-welded pipes. Then, under the condition of maintaining the extrusion force of the extrusion adjustment components, the to-be-welded pipes are axially displaced through the axial translation operation table, so as to prompt the connecting ends of the two to-be-welded pipes to abut, thereby ensuring the flat joint welding of the two to-be-welded pipes. Moreover, during the welding process, the extrusion force is always maintained, and a large amount of deformation of the bevel surface will not occur due to the high welding temperature, significantly improving the welding quality. Description of the Drawings
[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments.
[0014] Figure 1 It is the rear view of the present utility model;
[0015] Figure 2 It is the left view of the present utility model;
[0016] Figure 3 It is the structural schematic diagram of the extrusion adjustment component of the present utility model. Detailed Embodiments
[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inner", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0019] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0020] As Figures 1 to 3 shown, the large-diameter welded pipe butt-forming auxiliary control device includes two sets of roller racks 3. At least one set of the roller racks 3 is arranged on the sliding seat 5 of the axial translation operation table. The axial translation operation table is used to drive one set of the roller racks 3 to displace relative to the other set of the roller racks; each of the two sets of the roller racks 3 supports a welded pipe 4 to be welded; it further includes an extrusion adjustment component. The extrusion adjustment component is arranged on the support ring 8. In this embodiment, the rear view of the support ring 8 is in a ring structure. As Figure 2 shown, the middle part of the support ring 8 is hollowed out. The advantage of this design is that it is convenient to observe and measure the flatness when the two welded pipes 4 to be welded are butted. The support ring 8 is arranged between the two sets of roller rack groups, that is, between the two welded pipes 4 to be welded, so as to facilitate the extrusion adjustment component to extrude the outer surfaces of the connecting ends of the two welded pipes 4 to be welded; the support ring 8 is fixed on the fixed seat 1 of the axial translation operation table; in this embodiment, as Figure 1As shown, a support ring support frame 7 is provided, and then the support ring 8 is connected through a connecting arm 11, and the support ring support frame 7 is fixed to the fixed seat 1 of the axial translation operation table; a number of the extrusion adjustment components are arranged in a circle at intervals along the support ring to form a group, and are used for radially extruding the connecting ends of the two to-be-welded pipes, so as to make the butting surfaces of the two to-be-welded pipes flat and fit.
[0021] Optionally, as Figure 1 shown, the roller rack consists of a left roller rack and a right roller rack; both the left roller rack and the right roller rack can be slidably arranged on the roller rack support seat in the left and right directions. During use, they are driven to move left and right by a driving device 2, and at the same time, a rotating motor (not shown) is also provided to drive the driving wheel to control the rotation of the roller rack 3 for the to-be-welded pipe 4 to rotate (the current roller rack already has this function); the roller rack support seat is arranged on the sliding seat 5.
[0022] Optionally, as Figure 2 shown, two groups of the extrusion adjustment components are provided, and the two groups of the extrusion adjustment components are arranged adjacent to each other axially, that is, one group of the extrusion adjustment components is used to extrude one to-be-welded pipe 4, and the other group is used to extrude the other to-be-welded pipe 4.
[0023] Optionally, as Figure 3 shown, the extrusion adjustment component includes a telescopic cylinder 10, a connecting component and an arc-shaped roller pressing plate 9; the bottom surface of the arc-shaped roller pressing plate 9 is arranged as an arc surface to match the surface of the to-be-welded pipe 4. During processing, different specifications of arc surfaces are matched according to the common pipe diameters of the to-be-welded pipes 4, such as 15m, etc., to improve the matching degree; a number of rolling wheels or rolling beads 13 are arranged on the bottom surface of the arc-shaped roller pressing plate 9; the upper part of the arc-shaped roller pressing plate 9 is detachably connected to the connecting component. In this embodiment, the following scheme is adopted: the connecting component includes a connecting seat, a clamping groove 22 is arranged at the lower part of the connecting seat, a connecting rod 14 is arranged at the upper part of the arc-shaped roller pressing plate 9, and the connecting rod 14 is clamped into the clamping groove 22 and then tightened and connected by a bolt 21; a T-shaped groove 20 is arranged at the upper part of the connecting seat, and a T-shaped connecting head 19 is clamped on the T-shaped groove 20; a piezoresistive resistance module 15 is arranged between the T-shaped connecting head 19 and the bottom surface of the T-shaped groove 20; the upper part of the T-shaped connecting head 19 is provided with a clamping groove 18 and is fixed by a bolt 16 to realize the detachable connection with the telescopic rod 17 of the telescopic cylinder 10, which is convenient for daily maintenance. The telescopic cylinder 10 can be a double-acting cylinder, and can be an electric telescopic cylinder, a hydraulic cylinder or a pneumatic cylinder driven by a stepping motor with a speed reducer, such as Figure 1 shown, the telescopic cylinder 10 is fixed to the support ring 8.
[0024] Optionally, as Figure 2As shown, a pressure display module 12 is provided on the support ring 8, and the pressure display module 12 is electrically connected to the piezoresistive module 15. In this embodiment, a pressure display module 12 is provided beside each extrusion adjustment component, which facilitates technicians to view in a timely and convenient manner during operation. The pressure display module 12 can use a small module within a size of 5 cm.
[0025] Optionally, as Figure 1 shown, in this embodiment, eight extrusion adjustment components form a group and are arranged in a circle at intervals of 45°.
[0026] Optionally, as Figure 2 shown, a plurality of clamping holes 5-1 are axially provided on the sliding seat, and a synchronous pressure rod 5-2 is detachably provided on the clamping holes 5-1. The purpose of setting the synchronous pressure rod 5-2 is that for some pipes to be welded 4 with a smaller diameter and lighter weight, they cannot rely on their own gravity to well eliminate the extrusion force of several extrusion adjustment components and there will be a displacement of the pipe to be welded 4 relative to the sliding seat 5 during the axial displacement. That is, the function of setting the synchronous pressure rod 5-2 is to ensure the synchronization of the pipe to be welded 4 and the sliding seat 5 during the axial displacement.
[0027] When using the large-diameter pipe butt joint forming auxiliary control device as described above for auxiliary control, the operation is as follows: (1) Synchronously adjust the left roller stand and the right roller stand according to the diameter of the pipe to be welded, lift the two pipes to be welded 4 into the two sets of roller stands respectively, and control the connection ends of the two pipes to be welded to be within the extrusion range of the arc-shaped roller pressing plates of the extrusion adjustment components; make the center of the pipe to be welded coincide with the center of the support ring; during operation, the center of the support ring 8 is fixed. Therefore, in actual operation, after synchronously adjusting the left roller stand and the right roller stand and placing the pipe to be welded 4 on it, the roller stand 3 can be driven first to make the pipe to be welded 4 rotate several times;
[0028] (2) Control the arc-shaped roller pressing plate of the extrusion adjustment component to displace radially and press against the outer surface of the pipe to be welded, and perform a standard circle fine-tuning operation on the connection end of the pipe to be welded 4; control the radial displacement amount of the arc-shaped roller pressing plate by comparing the flatness of the outer surfaces of the connection ends of the two pipes to be welded. At the same time, control the extrusion force within the safe pressure range through the pressure display module. If the extrusion force value is too large in some directions, the connection end of the pipe to be welded 4 will deviate relatively from the standard circle. At this time, all extrusion adjustment components can be retracted first and a suitable extrusion force can be maintained, and then the pipe to be welded 4 can be rotated to perform a standard circle fine-tuning on the connection end of the pipe to be welded 4;
[0029] (3) Check the flatness of the outer surfaces of the connection ends of the two pipes to be welded in a circle;
[0030] (4) Control the sliding seat displacement of the axial translation operation table to prompt the connection ends of the two to-be-welded steel pipes to abut against each other;
[0031] (5) Conduct a second inspection around the flatness of the outer surfaces of the connection ends of the two to-be-welded steel pipes;
[0032] (6) Maintain / fine-tune the extrusion force of the arc-shaped roller pressing plate of the extrusion adjustment component;
[0033] (7) Weld from the inner ends of the two to-be-welded steel pipes.
[0034] Optionally, when controlling the arc-shaped roller pressing plate of the extrusion adjustment component to perform extrusion, extrusion adjustment is performed according to the two relatively arranged extrusion adjustment components.
Claims
1. Auxiliary control device for large diameter welded pipe forming, characterized by: It includes two sets of roller frames, at least one set of the roller frames is arranged on the sliding seat of the axial translation operating table, and the axial translation operating table is used to drive one set of the roller frames to move relative to the other set of the roller frames; the two sets of roller frames each support a welded pipe to be welded; it also includes an extrusion adjustment component, the extrusion adjustment component is arranged on a support ring, and the support ring is arranged between the two sets of the roller frame groups; the support ring is fixed on the fixed seat of the axial translation operating table; a plurality of the extrusion adjustment components are arranged along the support ring at intervals of one circle to form a group, which is used to radially extrude the connecting ends of the two welded pipes to be welded, so as to make the butt surfaces of the two welded pipes to be welded flat and fit together.
2. The large diameter welded pipe forming auxiliary control device according to claim 1, characterized in that: The roller frame consists of a left roller frame and a right roller frame; the left roller frame and the right roller frame can be slidably arranged on the roller frame support along the left and right directions; the roller frame support is arranged on the sliding seat.
3. The large diameter welded pipe forming auxiliary control device according to claim 1, characterized in that: The extrusion adjustment components are provided in two groups, and the two groups of extrusion adjustment components are adjacently arranged along the axial direction.
4. The large diameter welded pipe forming auxiliary control device according to claim 1, characterized in that: The extrusion adjustment assembly includes a telescopic cylinder, a connecting assembly and an arc-shaped roller pressure plate; the bottom surface of the arc-shaped roller pressure plate is matched with the surface of the welded pipe to be welded and is set to an arc surface, and a plurality of rolling wheels or rolling balls are provided on its bottom surface; the upper part of the arc-shaped roller pressure plate is detachably connected to the connecting assembly; the upper part of the connecting assembly is connected to the telescopic rod of the telescopic cylinder; the telescopic cylinder is fixed to the support ring.
5. The large diameter welded pipe forming auxiliary control device according to claim 4, characterized in that: The connecting assembly includes a connecting seat, a T-shaped slot is provided on the upper part of the connecting seat, a T-shaped connector is clamped on the T-shaped slot; a varistor module is provided between the T-shaped connector and the bottom surface of the T-shaped slot; the upper part of the T-shaped connector is connected to the telescopic rod of the telescopic cylinder.
6. The large diameter welded pipe forming auxiliary control device according to claim 5, characterized in that: A pressure display module is provided on the support ring, and the pressure display module is electrically connected to the pressure-sensitive resistor module.
7. The large diameter welded pipe forming auxiliary control device according to claim 1, characterized in that: The eight extrusion adjustment components form a group and are arranged in a circle at an interval of 45 degrees.
8. The large diameter welded pipe forming auxiliary control device according to claim 1, characterized in that: A plurality of clamping holes are arranged on the sliding seat along the axial direction, and a synchronous pressing rod is detachably arranged on the clamping hole.
9. The large diameter welded pipe forming auxiliary control device according to claim 5, characterized in that: A card slot is provided at the lower portion of the connecting seat, and a connecting rod is provided at the upper portion of the arc-shaped roller pressure plate. A detachable connection is achieved by inserting the connecting rod into the card slot.