Double annular frame jointing device and method thereof

Abstract

This invention discloses a double-ring frame seam closing method. The device includes a transition closing ring frame and a closing ring frame, which are arranged adjacent to each other. The transition closing ring frame consists of a transition lifting ring frame and a transition pressure roller beam forming a trumpet-shaped structure, with the transition pressure roller beam mounted on the transition lifting ring frame. The center of the lifting ring frame is aligned with the outer axial direction of the open tube blank. This device, through its double-ring frame structure, controls the seam pressure of the closing section and the transition section separately, evenly distributing the seam force of the closing section and the transition section onto each closing roller beam to meet the needs of the production process and achieve the seam closing of the open tube blank.

Description

Technical Field

[0001] The invention belongs to the field of JCOE large straight seam submerged arc welded pipe production line, and specifically relates to the seaming of open pipe blanks after forming, especially to the seaming of high-grade and thick-walled open pipe blanks, and specifically is a double annular frame seaming device and method thereof. Background Art

[0002] In recent years, with the continuous research and development of straight seam welded pipe steel and the market demand, the demand for high-grade and thick-wall straight seam welded pipes has gradually increased. At present, the production process of large straight seam submerged arc welded pipes is mainly based on JCOE forming, in which the seam closing of the open pipe blank is completed by the seam closing machine. The seam closing machine generally adopts the multi-roller beam seam closing method. Due to the characteristics of the JCOE forming process and the seam closing working principle, there is a long section behind the closing section in the closing roller beam, forming a tapered pipe seam and generating a large seam tension. This tapered pipe seam section is called the closing transition section. The design of traditional roller beams adopts the introduction angle method, that is, the first few groups of rollers at the entrance of the closing roller beam are designed to be conical structures as a closing transition section to reduce the pressure of the closing tension on the pressure rollers. However, due to the inconsistency of the openings of the open tube billets after forming of sheets of different materials and wall thicknesses, the tapered angles and closing tensions generated during the closing process are different, especially for open tube billets with high steel grades and large wall thicknesses, the first group of pressure rollers at the rear closing roller position are damaged due to overload, causing the machine to fail to work. Summary of the invention

[0003] One object of the present invention is to provide a double annular frame seaming device, and another object of the present invention is to provide a double annular frame seaming method; in view of the problem that the current seaming machine cannot seam, especially the straight seam open pipe blanks with high steel grade and large wall thickness, the seaming pressure of the seam section and the transition section are controlled separately through a double annular frame structure, and the seam force of the seam section and the transition section are evenly distributed on each closing roller beam to meet the process production needs and realize the seam closing of the open pipe blank.

[0004] To achieve the above-mentioned purpose, the double-annular frame joint device of the present invention comprises a mainframe base and a frame arranged on the mainframe base;

[0005] The frame comprises a transition closing annular frame and a closing annular frame, and the transition closing annular frame and the closing annular frame are arranged adjacent to each other;

[0006] The transition closing annular frame is composed of a transition lifting annular frame and a transition pressure roller beam to form a bell-mouth structure, and the transition pressure roller beam is installed on the transition lifting annular frame;

[0007] The transition roller beam is composed of a first fixed component and a first movable component, and a rolling wheel is installed at the end of the transition roller beam;

[0008] The first fixed component includes a 3# transition pressure roller beam and a 6# transition pressure roller beam fixed on the transition lifting annular frame;

[0009] The first movable component includes a 1# transition roller beam, a 2# transition roller beam, a 4# transition roller beam, a 5# transition roller beam, a 7# transition roller beam, and an 8# transition roller beam movably mounted on a transition lifting annular frame;

[0010] The closing ring frame is composed of a lifting ring frame and a pressure roller beam, and the pressure roller beam is installed on the lifting ring frame;

[0011] The pressure roller beam is composed of a second fixed component and a second movable component, and a rolling wheel is installed at the end of the pressure roller beam;

[0012] The second fixed member includes a 3.1# pressure roller beam, a 6.1# pressure roller beam and a 9# pressure roller beam fixed on the lifting ring frame;

[0013] The second movable component includes 1.1# roller beam, 2.1# roller beam, 4.1# roller beam, 5.1# roller beam, 7.1# roller beam and 8.1# roller beam movably installed on the lifting ring frame.

[0014] At least one rolling wheel is installed at the end of the transition roller beam.

[0015] The 1# transition roller beam, 2# transition roller beam, 4# transition roller beam, 5# transition roller beam, 7# transition roller beam and 8# transition roller beam are all provided with driving hydraulic cylinders; the 1# transition roller beam, 2# transition roller beam, 4# transition roller beam, 5# transition roller beam, 7# transition roller beam and 8# transition roller beam are distributed in an annular plane on the same annular plane of the transition lifting annular frame through driving hydraulic cylinders; the 1# transition roller beam is provided with a 1# corresponding transition roller beam, the 2# transition roller beam is provided with a 2# corresponding transition roller beam, the 4# The transition roller beam corresponds to the 4# corresponding transition roller beam, the 5# corresponding transition roller beam corresponds to the 5# corresponding transition roller beam, the 7# corresponding transition roller beam corresponds to the 7# corresponding transition roller beam, and the 8# corresponding transition roller beam corresponds to the 8# corresponding transition roller beam; the 1# corresponding transition roller beam, the 2# corresponding transition roller beam, the 4# corresponding transition roller beam, the 5# corresponding transition roller beam, the 7# corresponding transition roller beam, and the 8# corresponding transition roller beam are all provided with driving hydraulic cylinders, which are distributed in an annular plane of the transition lifting annular frame through the driving hydraulic cylinders.

[0016] The 3# transition roller beam is correspondingly provided with the 3# corresponding transition roller beam; the 6# transition roller beam is correspondingly provided with the 6# corresponding transition roller beam.

[0017] The corresponding transition pressure roller beams are driven to move synchronously by the hydraulic cylinder.

[0018] The angle between the 3# transition roller beam and the 6# transition roller beam is 120°, and the 3# transition roller beam and the 6# transition roller beam are mirror-imaged with the longitudinal center axis h of the transition closing annular frame as the center line; the angle between the 3# transition roller beam and the longitudinal center axis h is 60°; the angle between the 6# transition roller beam and the longitudinal center axis h is 60°.

[0019] At least one rolling wheel is installed at the end of the pressure roller beam.

[0020] The 1.1# roller beam, 2.1# roller beam, 4.1# roller beam, 5.1# roller beam, 7.1# roller beam, and 8.1# roller beam are all provided with driving hydraulic cylinders; the 1.1# roller beam, 2.1# roller beam, 4.1# roller beam, 5.1# roller beam, 7.1# roller beam, and 8.1# roller beam are distributed in an annular shape on the same annular plane of the lifting annular frame through the driving hydraulic cylinders;

[0021] The 1.1# roller beam corresponds to the 1.1# roller beam, the 2.1# roller beam corresponds to the 2.1# roller beam, the 4.1# roller beam corresponds to the 4.1# roller beam, the 5.1# roller beam corresponds to the 5.1# roller beam, the 7.1# roller beam corresponds to the 7.1# roller beam, and the 8.1# roller beam corresponds to the 8.1# roller beam. Driving hydraulic cylinders are arranged on the 1.1# roller beam, the 2.1# roller beam, the 4.1# roller beam, the 5.1# roller beam, the 7.1# roller beam, and the 8.1# roller beam, which are distributed in an annular plane of the lifting annular frame through the driving hydraulic cylinders.

[0022] The 3.1# roller beam corresponds to the 3.1# roller beam, the 6.1# roller beam corresponds to the 6.1# roller beam, and the 9# roller beam corresponds to the 9# roller beam.

[0023] The corresponding pressure roller beams are driven to move synchronously by the hydraulic cylinders.

[0024] The angle between the 3.1# roller beam, 6.1# roller beam and 9# roller beam is 120°, and the 3.1# roller beam and 6.1# roller beam are mirror-imaged with the longitudinal center axis h' of the closed annular frame as the center line, the angle between the 3.1# roller beam and the longitudinal center axis h' is 60°, the angle between the 6.1# roller beam and the longitudinal center axis h' is 60°, and the angle between the 9# roller beam and the longitudinal center axis h' is 0°.

[0025] An angle is formed between the bell-mouth structure composed of the transition lifting ring frame and the transition pressure roller beam and the outer circumferential axis of the open tube blank, and the angle between the bell-mouth structure and the outer circumferential axis of the open tube blank is adjusted by the transition pressure roller beam; the center of the lifting ring frame is consistent with the outer circumferential axis of the open tube blank, and the radial movement of the lifting ring frame is adjusted by the pressure roller beam.

[0026] A transition lifting adjustment mechanism is arranged at the bottom of the transition closing annular frame, and the height of the transition closing annular frame is adjusted by the transition lifting adjustment mechanism; a lifting adjustment mechanism is arranged at the bottom of the closing annular frame, and the height of the closing annular frame is adjusted by the lifting adjustment mechanism.

[0027] The transition lifting adjustment mechanism and the lifting adjustment mechanism are one or a combination of a cylinder or a hydraulic cylinder; the transition pressure roller beam and the pressure roller beam are one or a combination of a cylinder or a hydraulic cylinder.

[0028] The transition lifting annular frame forms a bell-mouth structure, the inclination angle of the bell-mouth structure is a transition curve, and the inclination angle of the transition curve is adjusted by a transition pressure roller beam; the radial movement of the lifting annular frame is adjusted by the pressure roller beam.

[0029] The double annular frame jointing device of the present invention further includes a feeding module, which includes a feeding mechanism, a closing annular frame feeding mechanism and a transition closing annular frame feeding mechanism, and the feeding mechanism is sequentially connected to the closing annular frame feeding mechanism and the transition closing annular frame feeding mechanism; a pulley is arranged on the top of the closing annular frame feeding mechanism, and the closing annular frame feeding mechanism is installed at the bottom of the lifting annular frame to support and transport the open pipe blank 4; the transition closing annular frame feeding mechanism is installed at the bottom of the transition lifting annular frame to support and transport the open pipe blank 4;

[0030] The feeding mechanism is connected to the transmission motor and is arranged inside the main machine base.

[0031] The axis of the transitional closing annular frame is the intersection line a of the longitudinal center axis h and the transverse center axis w; the axis of the closing annular frame is the intersection line a of the longitudinal center axis h' and the transverse center axis w'; the intersection line a coincides with the intersection line a.

[0032] The double annular frame jointing device and method described in the present invention have the following beneficial effects: the jointing of the open tube billet is started from the end thereof by the jointing machine rollers, the open tube billet is jointed while being conveyed, and the entire production process of automatic jointing, welding and closing of the open tube billet is completed by the automatic welding system; each group of roller beams moves in the radial direction to close the transition section of the tube billet, and the jointing load of each roller is evenly distributed; at the same time, the annular frame is adjusted up and down to meet the bottom edge positioning form of tube billets with different diameters; some roller beams can adjust their positions along the circumferential direction to adapt to tube billets with different diameters and wall thicknesses to achieve the best closing state. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The schematic diagram of the working principle of the double ring frame joint Figure 1 ;

[0034] Figure 2 The schematic diagram of the working principle of the double ring frame joint Figure 2 ;

[0035] Figure 3 It is a side view of the transition closing roller ring frame;

[0036] Figure 4 It is a side view of the closing roller ring frame;

[0037] Figure 5 This is a working diagram of the double ring frame jointing machine;

[0038] In the figure: 1-transition closing ring frame, 1-1-transition lifting ring frame, 2-closing ring frame, 2-1-lifting ring frame, 3-driving hydraulic cylinder, 4-open pipe blank, 5-welding machine system, 6-feeding mechanism, 6-1-closing ring frame feeding mechanism, 6-2-transition closing ring frame feeding mechanism, 7-1# transition roller beam, 8-2# transition roller beam, 9-3# transition roller beam, 10-4# transition roller beam, 11-5# transition roller beam, 12-6# transition roller beam, 13-7# transition roller beam, 14-8# transition roller beam, 15-9# roller beam, 16-transition lifting adjustment mechanism;

[0039] 7-1-1.1# roller beam, 8-1-2.1# roller beam, 9-1-3.1# roller beam, 10-1-4.1# roller beam, 11-1-5.1# roller beam, 12-1-6.1# roller beam, 13-1-7.1# roller beam, 14-1-8.1# roller beam, 16-1-lifting adjustment mechanism;

[0040] 7-2-1.1# corresponds to roller beam, 8-2-2.1# corresponds to roller beam, 9-2-3.1# corresponds to roller beam, 10-2-4.1# corresponds to roller beam, 11-2-5.1# corresponds to roller beam, 12-2-6.1# corresponds to roller beam, 13-2-7.1# corresponds to roller beam, 14-2-8.1# corresponds to roller beam;

[0041] 7-3# corresponds to transition roller beam, 8-3# corresponds to transition roller beam, 9-3# corresponds to transition roller beam, 10-3# corresponds to transition roller beam, 11-3# corresponds to transition roller beam, 12-3# corresponds to transition roller beam, 13-3# corresponds to transition roller beam, 14-3# corresponds to transition roller beam, and 15-1-9# corresponds to roller beam. DETAILED DESCRIPTION

[0042] Example 1

[0043] like Figure 1 , 3 -5, a double annular frame joint device according to the present invention comprises a mainframe base and a frame arranged on the mainframe base;

[0044] The frame comprises a transition closing annular frame 1 and a closing annular frame 2, wherein the transition closing annular frame 1 and the closing annular frame 2 are arranged adjacent to each other;

[0045] The transition closing annular frame 1 is composed of a transition lifting annular frame 1-1 and a transition pressure roller beam to form a bell-mouth structure, and the transition pressure roller beam is installed on the transition lifting annular frame 1-1;

[0046] The transition roller beam is composed of a first fixed component and a first movable component, and a rolling wheel is installed at the end of the transition roller beam;

[0047] The first fixed component includes a 3# transition roller beam 9 and a 6# transition roller beam 12 fixed on the transition lifting ring frame 1-1;

[0048] The first movable component includes a 1# transition roller beam 7, a 2# transition roller beam 8, a 4# transition roller beam 10, a 5# transition roller beam 11, a 7# transition roller beam 13, and an 8# transition roller beam 14 movably mounted on the transition lifting ring frame 1-1;

[0049] The closing ring frame 2 is composed of a lifting ring frame 2-1 and a pressure roller beam, and the pressure roller beam is installed on the lifting ring frame 2-1;

[0050] The pressure roller beam is composed of a second fixed component and a second movable component, and a rolling wheel is installed at the end of the pressure roller beam;

[0051] The second fixed member includes a 3.1# roller beam 9-1, a 6.1# roller beam 12-1 and a 9# roller beam 15 fixed on the lifting ring frame 2-1;

[0052] The second movable component includes 1.1# roller beam 7-1, 2.1# roller beam 8-1, 4.1# roller beam 10-1, 5.1# roller beam 11-1, 7.1# roller beam 13-1, and 8.1# roller beam 14-1 movably mounted on the lifting ring frame 2-1.

[0053] A rolling wheel is installed at the end of the transition roller beam.

[0054] The 1# transition roller beam 7, the 2# transition roller beam 8, the 4# transition roller beam 10, the 5# transition roller beam 11, the 7# transition roller beam 13, and the 8# transition roller beam 14 are all provided with a driving hydraulic cylinder 3; the 1# transition roller beam 7, the 2# transition roller beam 8, the 4# transition roller beam 10, the 5# transition roller beam 11, the 7# transition roller beam 13, and the 8# transition roller beam 14 are distributed in an annular plane on the same annular plane of the transition lifting annular frame 1-1 through the driving hydraulic cylinder 3; the 1# transition roller beam 7 is provided with a 1# corresponding transition roller beam 7-3, the 2# transition roller beam 8 is provided with a 2# corresponding transition roller beam 8-3, and the 4# transition roller beam 10 is provided with a corresponding A 4# corresponding transition roller beam 10-3 is set, a 5# corresponding transition roller beam 11 is set corresponding to a 5# corresponding transition roller beam 11-3, a 7# corresponding transition roller beam 13 is set corresponding to a 7# corresponding transition roller beam 13-3, and an 8# corresponding transition roller beam 14 is set corresponding to a 8# corresponding transition roller beam 14-3; the 1# corresponding transition roller beam 7-3, the 2# corresponding transition roller beam 8-3, the 4# corresponding transition roller beam 10-3, the 5# corresponding transition roller beam 11-3, the 7# corresponding transition roller beam 13-3, and the 8# corresponding transition roller beam 14-3 are all provided with a driving hydraulic cylinder 3, which is distributed in an annular plane of the transition lifting annular frame 1-1 through the driving hydraulic cylinder 3.

[0055] The angle between the 3# transition roller beam 9 and the 6# transition roller beam 12 is 120°, and the 3# transition roller beam 9 and the 6# transition roller beam 12 are mirror-imaged with the longitudinal center axis h of the transition closing annular frame 1 as the center line; the angle between the 3# transition roller beam 9 and the longitudinal center axis h is 60°; the angle between the 6# transition roller beam 12 and the longitudinal center axis h is 60°.

[0056] A rolling wheel is installed at the end of the pressure roller beam.

[0057] The 1.1# roller beam 7-1, 2.1# roller beam 8-1, 4.1# roller beam 10-1, 5.1# roller beam 11-1, 7.1# roller beam 13-1, and 8.1# roller beam 14-1 are all provided with a driving hydraulic cylinder 3; the 1.1# roller beam 7-1, 2.1# roller beam 8-1, 4.1# roller beam 10-1, 5.1# roller beam 11-1, 7.1# roller beam 13-1, and 8.1# roller beam 14-1 are distributed in an annular shape on the same annular plane of the lifting annular frame 2-1 through the driving hydraulic cylinder 3;

[0058] The 1.1# roller beam 7-1 is corresponding to the 1.1# roller beam 7-2, the 2.1# roller beam 8-1 is corresponding to the 2.1# roller beam 8-2, the 4.1# roller beam 10-1 is corresponding to the 4.1# roller beam 10-2, the 5.1# roller beam 11-1 is corresponding to the 5.1# roller beam 11-2, the 7.1# roller beam 13-1 is corresponding to the 7.1# roller beam 13-2, and the 8.1# roller beam 10-1 is corresponding to the 4.1# roller beam 10-2. Beam 14-1 corresponds to 8.1# corresponding roller beam 14-2, and 1.1# corresponding roller beam 7-2, 2.1# corresponding roller beam 8-2, 4.1# corresponding roller beam 10-2, 5.1# corresponding roller beam 11-2, 7.1# corresponding roller beam 13-2, and 8.1# corresponding roller beam 14-2 are all provided with driving hydraulic cylinders 3, which are distributed in an annular plane on the same annular plane of the lifting annular frame 2-1 through the driving hydraulic cylinders 3.

[0059] The angle between the 3.1# roller beam 9-1, the 6.1# roller beam 12-1 and the 9# roller beam 15 is 120°, and the 3.1# roller beam 9-1 and the 6.1# roller beam 12-1 are mirror-imaged with the longitudinal center axis h' of the closed annular frame 2 as the center line, the angle between the 3.1# roller beam 9-1 and the longitudinal center axis h' is 60°, the angle between the 6.1# roller beam 12-1 and the longitudinal center axis h' is 60°, and the angle between the 9# roller beam 15 and the longitudinal center axis h' is 0°.

[0060] There is an angle between the bell-mouth structure composed of the transition lifting ring frame 1-1 and the transition pressure roller beam and the outer circumferential axis of the open tube blank 4, and the angle between the bell-mouth structure and the outer circumferential axis of the open tube blank 4 is adjusted by the transition pressure roller beam; the lifting ring frame 2-1 is parallel to the outer circumferential axis of the open tube blank 4, and the radial movement of the lifting ring frame 2-1 is adjusted by the pressure roller beam.

[0061] A transition lifting adjustment mechanism 16 is provided at the bottom of the transition closing ring frame 1, and the height of the transition closing ring frame 1 is adjusted by the transition lifting adjustment mechanism 16; a lifting adjustment mechanism 16-1 is provided at the bottom of the closing ring frame 2, and the height of the closing ring frame 2 is adjusted by the lifting adjustment mechanism 16-1.

[0062] The transition lifting adjustment mechanism 16 and the lifting adjustment mechanism 16 - 1 are hydraulic cylinders; the transition pressure roller beam and the pressure roller beam are hydraulic cylinders.

[0063] The transition lifting ring frame 1-1 forms a bell-mouth structure, the inclination angle of the bell-mouth structure is a transition curve, and the transition curve adjusts the inclination angle through a transition pressure roller beam; the radial movement of the lifting ring frame 2-1 is adjusted by the pressure roller beam.

[0064] The 3# transition roller beam 9 corresponds to the 3# corresponding transition roller beam 9 - 3 ; the 6# transition roller beam 12 corresponds to the 6# corresponding transition roller beam 12 - 3 .

[0065] The corresponding transition pressure roller beams are driven to move synchronously by the hydraulic cylinder.

[0066] The 3.1# roller beam 9-1 corresponds to the 3.1# roller beam 9-2, the 6.1# roller beam 12-1 corresponds to the 6.1# roller beam 12-2, and the 9# roller beam 15 corresponds to the 9# roller beam 15-1.

[0067] The corresponding pressure roller beams are driven to move synchronously by the hydraulic cylinders.

[0068] The double ring frame jointing device described in the present invention also includes a feeding module, the feeding module includes a feeding mechanism 6, a closing ring frame feeding mechanism 6-1 and a transition closing ring frame feeding mechanism 6-2, the feeding mechanism 6 is connected to the closing ring frame feeding mechanism 6-1 and the transition closing ring frame feeding mechanism 6-2 in sequence; a pulley is arranged on the top of the closing ring frame feeding mechanism 6-1, and the closing ring frame feeding mechanism 6-1 is installed at the bottom of the lifting ring frame 2-1; the transition closing ring frame feeding mechanism 6-2 is installed at the bottom of the transition lifting ring frame 1-1; the feeding mechanism 6 is connected to the transmission motor, and the feeding mechanism 6 is arranged inside the main machine base;

[0069] The feeding mechanism is connected to the transmission motor and is arranged inside the main machine base.

[0070] The axis of the transitional closing annular frame is the intersection line a of the longitudinal center axis h and the transverse center axis w; the axis of the closing annular frame is the intersection line a of the longitudinal center axis h' and the transverse center axis w'; the intersection line a coincides with the intersection line a.

[0071] Example 2

[0072] like Figure 2-5 As shown, the double-annular frame joint device of the present invention has a structure as in Example 1;

[0073] 9 rolling wheels are arranged on the corresponding transition roller beam; 9 rolling wheels are arranged on the corresponding roller beam.

[0074] The double-annular frame jointing method described in the present invention has the following steps:

[0075] 1) Closing the annular frame 2 completes the closing of the open tube 4; transition closing the annular frame 1 completes the closing of the transition opening part of the open tube 4; the driving hydraulic cylinders 3 on both sides of each annular frame drive the closing roller beams to move synchronously to achieve the closing function;

[0076] 2) The axis of the lifting ring frame 2-1 on the closing ring frame 2 is parallel to the center l of the open tube blank 4, driving the hydraulic cylinder 3 to move synchronously; the axis on the transition closing ring frame 1 forms a certain angle with the center l of the open tube blank 4 to form a horn structure. This angle can be adjusted according to the specifications of the open tube blank 4. When closing the seam, the hydraulic cylinder 3 is driven to move synchronously, and it moves synchronously with the driving hydraulic cylinder on the closing ring frame 2.

[0077] like Figure 5 As shown, under the joint action of the transition closing ring frame 1 and the closing ring frame 2, the end of the open tube blank 4 is closed, and under the action of the feeding mechanism 6, the open tube blank 4 is conveyed forward to achieve closing while conveying, and at the same time, the welding system 5 continuously welds the plate side bevel after closing until the closing welding of the entire open tube blank is completed.

[0078] like Figure 4 As shown, 9 rolling wheels are arranged on the corresponding roller beams installed on the closing ring frame 2, which can be driven individually in the radial direction until the open tube 4 is closed; among them, the 1.1# roller beam 7-1, 2.1# roller beam 8-1, 4.1# roller beam 10-1, 5.1# roller beam 11-1, 7.1# roller beam 13-1, and 8.1# roller beam 14-1 can be adjusted along the circumferential direction of the closing ring frame 2 to adapt to the open tube 4 with different diameters and wall thicknesses to achieve the best closing state. Under the action of the lifting adjustment mechanism 16-1, the closing ring frame 2 adjusts its height up and down so that the center of the closing ring frame 2 is consistent with the center of the open tube 4, which is adapted to the bottom edge positioning method when the open tube is incoming.

[0079] like Figure 3 As shown, the structure of the transition closing ring frame 1 is similar to that of the closing roller ring frame 2, and 9 rolling wheels are arranged on the corresponding transition roller beam, which can be driven separately in the radial direction. The transition lifting ring frame 1-1 and the transition roller beam form a bell-mouth structure with an angle between the outer axial direction of the open tube blank 4, and the angle between the bell-mouth structure and the outer axial direction of the open tube blank 4 is adjusted by the transition roller beam; the bell-mouth structure can adjust the inclination curve according to different tube diameters and wall thicknesses; the transition closing ring frame 1 is adjusted in height up and down under the action of the transition lifting adjustment mechanism 16, and is adjusted synchronously with the center of the closing ring frame 2.

[0080] Example 3

[0081] The double ring frame jointing method of the present invention comprises the following steps: Figure 2-5 As shown; the processing method is as in Example 2, the processing tube diameter is φ355~φ1422mm; the length is 8000~15000mm; the tube thickness is 6~60mm, wherein X80≤52; the production efficiency is 8~12 pieces / hour on average.

Claims

1. A double ring frame joint device, comprising a mainframe base and a frame arranged on the mainframe base; characterized in that: The frame comprises a transition closing annular frame (1) and a closing annular frame (2), wherein the transition closing annular frame (1) and the closing annular frame (2) are arranged adjacent to each other; The transition closing annular frame (1) is composed of a transition lifting annular frame (1-1) and a transition pressure roller beam to form a bell-mouth structure, and the transition pressure roller beam is installed on the transition lifting annular frame (1-1); The transition roller beam is composed of a first fixed component and a first movable component, and a rolling wheel is installed at the end of the transition roller beam; The first fixed component comprises a 3# transition pressure roller beam (9) and a 6# transition pressure roller beam (12) fixed on the transition lifting annular frame (1-1); The first movable component comprises a 1# transition roller beam (7), a 2# transition roller beam (8), a 4# transition roller beam (10), a 5# transition roller beam (11), a 7# transition roller beam (13), and an 8# transition roller beam (14) movably mounted on a transition lifting annular frame (1-1); The closing annular frame (2) is composed of a lifting annular frame (2-1) and a pressure roller beam, and the pressure roller beam is installed on the lifting annular frame (2-1); The pressure roller beam is composed of a second fixed component and a second movable component, and a rolling wheel is installed at the end of the pressure roller beam; The second fixed component comprises a 3.1# pressure roller beam (9-1), a 6.1# pressure roller beam (12-1) and a 9# pressure roller beam (15) fixed on the lifting annular frame (2-1); The second movable component comprises a 1.1# pressure roller beam (7-1), a 2.1# pressure roller beam (8-1), a 4.1# pressure roller beam (10-1), a 5.1# pressure roller beam (11-1), a 7.1# pressure roller beam (13-1), and an 8.1# pressure roller beam (14-1) movably mounted on the lifting annular frame (2-1).

2. A double annular frame jointing device as claimed in claim 1, characterized in that: At least one rolling wheel is installed at the end of the transition roller beam.

3. A double annular frame jointing device as claimed in claim 2, characterized in that: The 1# transition roller beam (7), the 2# transition roller beam (8), the 4# transition roller beam (10), the 5# transition roller beam (11), the 7# transition roller beam (13), and the 8# transition roller beam (14) are all provided with a driving hydraulic cylinder (3); the 1# transition roller beam (7), the 2# transition roller beam (8), the 4# transition roller beam (10), the 5# transition roller beam (11), the 7# transition roller beam (13), and the 8# transition roller beam (14) are distributed in an annular manner on the same annular plane of the transition lifting annular frame (1-1) through the driving hydraulic cylinder (3); the 1# transition roller beam (7) is provided with a 1# corresponding transition roller beam (7-3), the 2# transition roller beam (8) is provided with a 2# corresponding transition roller beam (8-3), and the 4# transition roller beam (1 0) is provided correspondingly to the 4# corresponding transition roller beam (10-3), the 5# corresponding transition roller beam (11) is provided correspondingly to the 5# corresponding transition roller beam (11-3), the 7# corresponding transition roller beam (13) is provided correspondingly to the 7# corresponding transition roller beam (13-3), and the 8# corresponding transition roller beam (14) is provided correspondingly to the 8# corresponding transition roller beam (14-3); the 1# corresponding transition roller beam (7-3), the 2# corresponding transition roller beam (8-3), the 4# corresponding transition roller beam (10-3), the 5# corresponding transition roller beam (11-3), the 7# corresponding transition roller beam (13-3), and the 8# corresponding transition roller beam (14-3) are all provided with driving hydraulic cylinders (3), which are distributed in an annular manner on the same annular plane of the transition lifting annular frame (1-1) through the driving hydraulic cylinders (3).

4. A double annular frame jointing device as claimed in claim 3, characterized in that: The angle between the 3# transition roller beam (9) and the 6# transition roller beam (12) is 120°. The 3# transition roller beam (9) and the 6# transition roller beam (12) are arranged in a mirror-image manner with the longitudinal center axis h of the transition closing annular frame (1) as the center line; the angle between the 3# transition roller beam (9) and the longitudinal center axis h is 60°; and the angle between the 6# transition roller beam (12) and the longitudinal center axis h is 60°.

5. A double annular frame jointing device as claimed in claim 4, characterized in that: At least one rolling wheel is installed at the end of the pressure roller beam.

6. A double annular frame jointing device as claimed in claim 5, characterized in that: The 1.1# roller beam (7-1), the 2.1# roller beam (8-1), the 4.1# roller beam (10-1), the 5.1# roller beam (11-1), the 7.1# roller beam (13-1), and the 8.1# roller beam (14-1) are all provided with a driving hydraulic cylinder (3); the 1.1# roller beam (7-1), the 2.1# roller beam (8-1), the 4.1# roller beam (10-1), the 5.1# roller beam (11-1), the 7.1# roller beam (13-1), and the 8.1# roller beam (14-1) are distributed in an annular manner on the same annular plane of the lifting annular frame (2-1) through the driving hydraulic cylinder (3); The 1.1# roller beam (7-1) is provided with a corresponding 1.1# roller beam (7-2), the 2.1# roller beam (8-1) is provided with a corresponding 2.1# roller beam (8-2), the 4.1# roller beam (10-1) is provided with a corresponding 4.1# roller beam (10-2), the 5.1# roller beam (11-1) is provided with a corresponding 5.1# roller beam (11-2), the 7.1# roller beam (13-1) is provided with a corresponding 7.1# roller beam (13-2), and the 8.1# roller beam is provided with a corresponding (14-1) corresponds to the 8.1# corresponding roller beam (14-2), and the 1.1# corresponding roller beam (7-2), the 2.1# corresponding roller beam (8-2), the 4.1# corresponding roller beam (10-2), the 5.1# corresponding roller beam (11-2), the 7.1# corresponding roller beam (13-2), and the 8.1# corresponding roller beam (14-2) are all provided with driving hydraulic cylinders (3), which are distributed in an annular manner on the same annular plane of the lifting annular frame (2-1) through the driving hydraulic cylinders (3).

7. A double annular frame jointing device as claimed in claim 6, characterized in that: The angle between the 3.1# roller beam (9-1), the 6.1# roller beam (12-1) and the 9# roller beam (15) is 120°. The 3.1# roller beam (9-1) and the 6.1# roller beam (12-1) are arranged in mirror image with the longitudinal center axis h' of the closed annular frame (2) as the center line. The angle between the 3.1# roller beam (9-1) and the longitudinal center axis h' is 60°, the angle between the 6.1# roller beam (12-1) and the longitudinal center axis h' is 60°, and the angle between the 9# roller beam (15) and the longitudinal center axis h' is 0°.

8. A double ring frame jointing device as claimed in claim 1, characterized in that: An angle is formed between the bell-mouth structure formed by the transition lifting annular frame (1-1) and the transition pressure roller beam and the outer circumferential axis of the open tube blank (4), and the angle between the bell-mouth structure and the outer circumferential axis of the open tube blank (4) is adjusted by the transition pressure roller beam; the lifting annular frame (2-1) is parallel to the outer circumferential axis of the open tube blank (4), and the radial movement of the lifting annular frame (2-1) is adjusted by the pressure roller beam.

9. A double ring frame jointing device as claimed in claim 8, characterized in that: A transition lifting adjustment mechanism (16) is provided at the bottom of the transition closing annular frame (1), and the height of the transition closing annular frame (1) is adjusted by the transition lifting adjustment mechanism (16); a lifting adjustment mechanism (16-1) is provided at the bottom of the closing annular frame (2), and the height of the closing annular frame (2) is adjusted by the lifting adjustment mechanism (16-1).

10. A double ring frame jointing device as claimed in claim 9, characterized in that: The transition lifting adjustment mechanism (16) and the lifting adjustment mechanism (16-1) are one or a combination of a cylinder or a hydraulic cylinder; the transition pressure roller beam and the pressure roller beam are one or a combination of a cylinder or a hydraulic cylinder.

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