A foldable support tool for welding thin-walled cylinder and its installation and adjustment method

Abstract

The present invention discloses a foldable rounding tool for welding a thin-walled cylinder and an installation and adjustment method, comprising a support shaft, a first flange, a second flange, a third flange, a first support assembly, a second support assembly, a first connecting rod, a second connecting rod, a first screw, and a second screw; the support shaft is provided with a first flange, a second flange, a third flange, a first support assembly, and a second support assembly, wherein the first flange, the first support assembly, the second support assembly, and the support shaft are welded, and the second flange and the third flange can slide along the support shaft; the first connecting rod is hinged to the second flange and the first support assembly, respectively, and the second connecting rod is hinged to the second support assembly and the third flange. The present invention provides a foldable rounding tool for welding a thin-walled cylinder, which can realize the cylinder rounding and end plate and cylinder concentricity adjustment processes at one time, is convenient and fast, and improves welding efficiency.

Description

Technical Field

[0001] The invention relates to the field of low-temperature container welding processing tooling, and in particular to a thin-walled cylinder welding foldable rounding tooling and an assembly and adjustment method. Background Art

[0002] The breakthrough and widespread application of superconducting materials are poised to usher in a new technological revolution. Currently, the most common application of superconducting materials is in the production of superconducting magnets for various purposes. The operation of superconducting magnets depends on the stable low-temperature environment provided by cryogenic containers. The production of cryogenic containers requires the use of thin-walled metal cylinders. Generally, thin-walled cylinders are first welded together from sheet metal, and then end plates or other working components are welded to the ends of the cylinders. The thin-walled cylinders used in cryogenic containers are relatively thin, and the cylinders deform under their own weight, becoming elliptical. Consequently, when welding the ends of the cylinders to the end plates or other working welded components, the gap at the joint is very large, making welding impossible. Furthermore, the low concentricity between the end plates and the cylinders results in uneven circumferential welds, significantly impacting the strength of the cylinders. Summary of the Invention

[0003] In order to solve the shortcomings of the existing technology, the present invention provides a thin-walled cylinder welding foldable support tool and installation method, which can realize the cylinder rounding and end plate and cylinder concentricity adjustment processes in one go, which is convenient and fast and improves welding efficiency.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A thin-walled cylindrical welded foldable round support fixture includes a support shaft, a first flange, a second flange, a third flange, a first support assembly, a second support assembly, a first connecting rod, a second connecting rod, a first screw, and a second screw. The first flange, the second flange, the third flange, the first support assembly, and the second support assembly are mounted on the support shaft. The first flange, the first support assembly, the second support assembly, and the second support assembly are welded to the support shaft, and the second and third flanges are slidable along the support shaft. The first connecting rod is hinged to the second flange and the first support assembly, respectively, and the second connecting rod is hinged to the second support assembly and the third flange. The first and second screws are threadedly connected to the first flange.

[0006] Furthermore, the first supporting assembly is composed of a first slide rod, a first slideway, a first fixed seat, a fourth flange, and an arc plate; the first slide rod can slide up and down along the first slideway, the first slide rod and the first connecting rod are hinged, and an arc plate is installed on the upper end of the first slide rod; the first fixed seat and the fourth flange are fixed, and the fourth flange and the first stud are hinged; the first slideway and the first fixed seat are hinged, and a ruler is engraved on the outside of the first slideway, which is convenient for precise adjustment during rounding, and can also measure the diameter of the cylinder.

[0007] Furthermore, the second support assembly consists of a second slide bar, a second slideway, a second fixed seat, a fifth flange, and a third screw. The second slide bar can slide up and down along the second slideway and is hinged to the second connecting rod. The second fixed seat is fixed to the fifth flange, which is hinged to the second stud. The second slideway is hinged to the second fixed seat, and the third screw is mounted on the top of the second slide bar. A ruler is engraved on the outside of the second slideway, allowing for precise dimensional adjustment and measuring the diameter of the end plate.

[0008] The present invention also provides a method for assembling and adjusting a thin-walled cylinder welding foldable support tool, comprising the following steps:

[0009] Step (1) fine-tune the position of the arc plate on the first slide bar to ensure that the positions of all arc plates relative to the slide bar are consistent.

[0010] Step (2) fine-tune the third screw on the second slide rod to ensure that the relative position of the third screw on the second slide rod is consistent.

[0011] Step (3) Insert the tooling into the cylinder and end plate.

[0012] Step (4) uses a pin to fix the first slide bar and the first slideway, the second slide bar and the second slideway together, and adjusts the second flange and the third flange on the support shaft on the support shaft through the stud, so that the second flange and the third flange slide to the right, driving the connecting rod to rotate the slideway and unfold the tooling.

[0013] Step (5) Use bolts to fix the slide and the fixed seat together, release the fixed relationship between the slide and the slide rod, continue to adjust the position of the second flange and the third flange on the shaft, slide the slide rod upward along the slide, further unfold the tooling, and finally make the cylinder body completely wrapped by the arc plate, and the end plate can be fixed on the third slide rod.

[0014] Step (6) adjust the position of the third flange on the support, move the third flange to the left, drive the second slide bar to move downward, further squeeze the cylinder, and calibrate the circle.

[0015] Step (7) Calculate the distance between the two relative points of the cylinder using the scale on the outside of the second slideway and compare it with the theoretical diameter. The error should be controlled within ±0.5mm.

[0016] Step (8) Use a cylindrical measuring rod to measure the distance between the outer circle of the end plate and the inner wall of the cylinder to further verify the concentricity of the end plate and the cylinder. The distance error of each point is controlled to ±0.5mm.

[0017] Step (9) is to carry out welding.

[0018] The beneficial effects of the present invention are:

[0019] The sliding rod of the rounding tool of the present invention can be extended and retracted to meet the coaxial positioning and welding requirements of thin-walled cylinders and end plates of cryogenic containers of different specifications and diameters. It has a simple structure, is easy to operate, and is low in cost. The rounding tool of the present invention is foldable, further reducing space occupation and facilitating transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the expanded state of the circle support tool provided by the present invention;

[0021] Figure 2 This is a schematic structural diagram of the circle support tool provided by the present invention in a folded state;

[0022] Figure 3 This is a schematic diagram of an example of application of the circle support tooling provided by the present invention;

[0023] Figure 4 This is a schematic diagram of the top structure of the first slide bar of the circle support tool provided by the present invention;

[0024] Figure 5 This is a schematic diagram of the top structure of the second slide bar of the circular support tool provided by the present invention;

[0025] In the figure: 1-support shaft; 2-first flange; 3-second flange; I-first support assembly; II-second support assembly; 4-first connecting rod; 5-second connecting rod; 6-first screw; 7-second screw; 8-first slide rod; 9-first slideway; 10-first fixed seat; 11-third flange; 12-arc plate; 13-second slide rod; 14-second slideway; 15-second fixed seat; 16-fourth flange; 17-fifth flange; 18-third screw; 19-positioning plate. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0027] The present invention provides a thin-walled cylindrical welded foldable round support fixture comprising a support shaft 1, a first flange 2, a second flange 3, a third flange 11, a first support assembly I, a second support assembly II, a first connecting rod 4, a second connecting rod 5, a first screw 6, and a second screw 7. The support shaft 1 is provided with the first flange 2, the second flange 3, the third flange 11, the first support assembly I, and the second support assembly II, wherein the first flange 2, the first support assembly I, the second support assembly II, and the support shaft 1 are welded, and the second flange 3 and the third flange 11 can slide left and right along the support shaft. The first connecting rod 4 is hinged to the second flange 3 and the first support assembly I, respectively, and the second connecting rod 5 is hinged to the second support assembly II and the third flange 11. The first screw 6 and the second screw 7 are respectively threadedly connected to the first flange 2, the first screw 6 is hinged to the second flange 3, and the second screw 7 is hinged to the third flange 3.

[0028] The first support assembly I is composed of a first slide bar 8, a first slideway 9, a first fixed seat 10, a fourth flange 16, and an arc plate 12; the first slide bar 8 and the first connecting rod 4 are hinged, and the first slide bar 8 can slide up and down along the first slideway 9 driven by the first connecting rod 4; a positioning plate 19 is installed on the upper end of the first slide bar 8, and the arc plate 12 is installed on the positioning plate 19 by bolts, and the positioning plate 19 can be adjusted in position by the bolts at the top of the first slide bar 8 to complete the up and down movement and thus accurately adjust the position of the arc plate 12; the first fixed seat 10 and the fourth flange 16 are connected by bolts, the first slideway 9 and the first fixed seat 10 are hinged, and a ruler is engraved on the outside of the first slideway 9 to facilitate precise adjustment during rounding, and the diameter of the cylinder can also be measured.

[0029] The second support assembly II consists of a second slide bar 13, a second slideway 14, a second fixed seat 15, a fifth flange 17, and a third screw 18; the second slide bar 13 can slide up and down along the second slideway 14, and the second slide bar 13 is hinged to the second connecting rod 5; the second fixed seat 15 and the fifth flange 17 are fixed, the second slideway 14 and the second fixed seat 15 are hinged, and the third screw 18 is installed at the top end of the second slide bar 13, and the radial position of the end plate can be adjusted by rotating the third screw 18; the second slide bar 13 is machined with a groove to limit the axial position of the end plate, and a ruler is engraved on the outside of the second slideway 14 to facilitate precise adjustment, and the diameter of the end plate can also be measured.

[0030] A method for assembling and adjusting a foldable rounding tool for welding a thin-walled cylinder according to the present invention comprises the following steps:

[0031] Step (1) adjusts the position of the arc plate 12 on the first slide bar 8 by means of the fine-tuning bolt on the top of the first slide bar 8 to ensure that the positions of all the arc plates 12 relative to the first slide bar 8 are consistent.

[0032] Step (2) fine-tuning the third screw rod 18 on the second slide rod 13 to ensure that the relative position of the third screw rod 18 on the second slide rod 13 is consistent.

[0033] Step (3) Insert the tooling into the cylinder and end plate.

[0034] In step (4), the first slide bar 8 and the first slideway 9, the second slide bar 13 and the second slideway 14 are fixed together by using a pin shaft, and the second flange 3 and the third flange 11 are slid to the right along the support shaft 1 by adjusting the first screw 6 and the second screw 7, thereby driving the first connecting rod 4 and the second connecting rod 5, and rotating the first slideway 9 and the second slideway 14 to unfold the tooling.

[0035] Step (5) Use bolts to fix the slideway and the fixing seat, release the fixed relationship between the slideway and the slide rod, continue to adjust the position of the second flange 3 and the third flange 11 on the axis, drive the first slide rod 8 and the second slide rod 13 to further extend the corresponding slideway, further expand the tooling, and finally make the cylinder body completely wrapped by the arc plate 12, and the end plate is fixed in the groove at the top of the second slide rod 13.

[0036] Step (6) adjusts the position of the third flange 11 so that the third flange 11 slides to the left, driving the first slide bar 8 to move downward, further squeezing the cylinder body to calibrate the circle.

[0037] Step (7) The distance between two opposite points of the cylinder is calculated by the scale on the outside of the first slide 9 and compared with the theoretical diameter. The error should be controlled within ±0.5mm.

[0038] Step (8) Use a cylindrical measuring rod to measure the distance between the outer circle of the end plate and the inner wall of the cylinder to further verify the concentricity of the end plate and the cylinder. The distance error of each point is controlled to ±0.5mm.

[0039] Step (9) is to carry out welding.

[0040] It will be easily understood by those skilled in the art that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A thin-walled cylinder welding foldable rounding tool, characterized in that: The invention comprises a support shaft (1), a first flange (2), a second flange (3), a third flange (11), a first support assembly (I), a second support assembly (II), a first connecting rod (4), a second connecting rod (5), a first screw (6), and a second screw (7); the support shaft (1) is provided with a first flange (2), a second flange (3), a third flange (11), a first support assembly (I), and a second support assembly (II); the first flange (2), the first support assembly (I), the second support assembly (II) and the support shaft (1) are welded, and the second flange (3) and the third flange (11) are slidably connected to the support shaft (1); the first connecting rod (4) is hinged to the second flange (3) and the first support assembly (I), and the second connecting rod (5) is hinged to the second support assembly (II) and the third flange (11); the first screw (6) and the second screw (7) are respectively threadedly connected to the first flange (2); The first screw and the second flange are hinged, and the second screw and the third flange are hinged; The first supporting assembly (I) includes a first slide bar (8), a first slideway (9), a first fixed seat (10), a fourth flange (16), an arc plate (12), and a positioning plate (19); the first slide bar (8) and the first connecting rod (4) are hinged, and the first slide bar (8) and the first slideway (9) are slidably connected; a positioning plate (19) is installed on the upper end of the first slide bar (8), and the arc plate (12) is installed on the positioning plate (19) by bolts; the first fixed seat (10) and the fourth flange (16) are fixed, the first slideway (9) and the first fixed seat (10) are hinged, and a scale is engraved on the outer side of the first slideway (9); The second support assembly (II) includes a second slide bar (13), a second slideway (14), a second fixed seat (15), a fifth flange (17), and a third screw (18); the second slide bar (13) can slide up and down along the second slideway (14), and the second slide bar (13) and the second connecting rod (5) are hinged; the second fixed seat (15) and the fifth flange (17) are fixed, the second slideway (14) and the second fixed seat (15) are hinged, and the third screw (18) is installed at the top end of the second slide bar (13), the second slide bar (13) is processed with a groove to limit the axial position of the end plate, and a scale is engraved on the outside of the second slideway (14).

2. A method for assembling and adjusting a foldable rounding tool for welding a thin-walled cylinder, the method being used for the foldable rounding tool for welding a thin-walled cylinder as claimed in claim 1, characterized in that: The method comprises the following steps: Step (1) fine-tuning the bolt on the top of the first slide bar (8) to change the axial position of the arc plate (12) on the first slide bar (8) to ensure that the positions of all the arc plates (12) relative to the first slide bar (8) are consistent; Step (2) fine-tuning the third screw rod (18) on the second slide rod (13) to ensure that the relative position of the third screw rod (18) on the second slide rod (13) is consistent; Step (3) inserting the tooling into the cylinder and the end plate; Step (4) uses a pin to fix the first slide bar (8) and the first slideway (9), the second slide bar (13) and the second slideway (14) together, and adjusts the first screw bar (6) and the second screw bar (7) to make the second flange (3) and the third flange (11) slide to the right along the support shaft (1), thereby driving the first connecting bar (4) and the second connecting bar (5), and making the first slideway (9) and the second slideway (14) rotate, thereby unfolding the tooling; Step (5) Use bolts to fix the slideway and the fixing seat, release the fixed relationship between the slideway and the slide bar, continue to adjust the position of the second flange (3) and the third flange (11) on the support shaft (1), drive the first slide bar (8) and the second slide bar (13) to further extend out of the corresponding slideway, further unfold the tooling, and finally make the cylinder completely wrapped by the arc plate (12), and the end plate is fixed in the groove at the top of the second slide bar (13); Step (6) adjusting the position of the second flange (3), sliding the second flange (3) to the left, driving the first slide bar (8) to move downward, further squeezing the cylinder body, and calibrating the roundness; Step (7) calculates the distance between each point of the cylinder by the ruler of the first slide (9), compares it with the theoretical diameter, and controls the error within ±0.5mm; Step (8) Use a cylindrical measuring rod to measure the distance between the outer circle of the end plate and the inner wall of the cylinder to further verify the concentricity of the end plate and the cylinder. The distance error of each point is controlled to ±0.5mm; Step (9) is to carry out welding.

Images