A straightening and pressing tool for T-profile welding and a T-profile welding method

Abstract

The present invention relates to the field of ship technology, and discloses a straightening and pressing tool for T-profile welding and a T-profile welding method. The straightening and pressing tool for T-profile welding includes a connecting device, a pressing device and a straightening device. The connecting device includes a support frame, a first top support column, a first fastener, a first latch tube and a second latch tube. The support frame is provided with a first accommodating groove extending along a first direction for accommodating the T-profile, and the first top support column is slidably provided on both sides of the first accommodating groove along the first direction. The pressing device includes a first latch, a pressing cylinder, a second latch tube, a second latch and a first force plate. The first end of the first latch is inserted into the first latch tube, the pressing cylinder is provided at the second end of the first latch, and the second latch tube is fixedly provided on the side wall of the pressing cylinder. The straightening device includes a third latch and a second force plate. The first end of the third latch is inserted into the third latch tube, and the second force plate is fixedly provided at the second end of the third latch.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and in particular to a straightening and pressing tool for T-section welding and a T-section welding method. Background Art

[0002] During the shipbuilding phase, T-shaped profiles and sheet metal often need to be assembled during the assembly process. During this process, the T-shaped profiles are inevitably deformed to varying degrees during lifting and laying. Therefore, a large number of temporary clamps (such as 7-shaped clamps) are often welded onto the sheet metal to press the T-shaped profiles and adjust their verticality. However, this method involves welding the temporary clamps, cutting off the temporary clamps, and grinding the clamp feet, which can easily damage the T-shaped profiles and sheet metal, and is labor-intensive and time-consuming.

[0003] Therefore, there is an urgent need for a T-profile welding straightening and pressing tool and a T-profile welding method to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a straightening and pressing tool for T-profile welding and a T-profile welding method, so as to reduce damage to the T-profile and the plate and improve the welding efficiency of the T-profile.

[0005] In order to achieve the above-mentioned object, the present invention provides a straightening and pressing tool for T-profile welding, comprising:

[0006] and a third latch tube, wherein the first latch tube is fixed to the top of the support frame and extends along the first direction for accommodating the T-shaped bar, the first supporting column being slidably provided on both sides of the first supporting column along the first direction, the first supporting column being provided with a first strip hole extending along the length direction of the first supporting column, the first fastener and the first strip hole being arranged in a one-to-one correspondence with each other, the first end of the first fastener being able to be inserted into the corresponding part of the first strip hole located in the first receiving groove, so as to drive the first supporting column to move in a direction close to the web of the T-shaped bar located in the first receiving groove, the first latch tube being fixedly provided on the top of the support frame and extending along the first direction, the third latch tube being fixedly provided on the top of the first latch tube and extending along a second direction perpendicular to the first direction;

[0007] and a second end of the first and second end of the second stopper, wherein the first end of the first and second stopper is engaged with the first and second stopper tubes, respectively, and the first and second stopper tubes are engaged with the first and second stopper tubes, respectively.

[0008] The straightening device includes a third latch and a second force applying plate, wherein the first end of the third latch is inserted into the third latch tube, and the second force applying plate is fixedly arranged on the second end of the third latch.

[0009] As an improvement of the above technical solution, the support frame includes a top plate and two side plates, the two side plates are fixed on the top plate and spaced apart along the second direction, the top plate and the side plates are arranged to form the first accommodating groove, and the side plates are provided with first column holes passing through the side plates along the second direction, and the first support columns are inserted into the first column holes.

[0010] As an improvement of the above technical solution, the pressing device further includes:

[0011] two sleeves, the two sleeves being fixedly arranged on the end surface of the second end of the first latch at intervals along the second direction;

[0012] The rotating shaft, the pressing cylinder is arranged between the two sleeves, and a rotating shaft hole parallel to the second direction is provided on the pressing cylinder. The rotating shaft passes through the rotating shaft hole, and both ends are respectively inserted into the inner holes of the two sleeves. The outer diameter of the rotating shaft is equal to the inner diameter of the rotating shaft hole. The axis of the pressing cylinder is parallel to the axis of the rotating shaft and is arranged at intervals. The rotating shaft can rotate relative to the sleeve.

[0013] As an improvement to the above technical solution, the extension direction of the second latch tube is parallel to the plane defined by the first rotation axis and the axis of the pressing cylinder.

[0014] As an improvement of the above technical solution, the pressing device further includes a clamping and adjusting head, and the clamping and adjusting head includes:

[0015] Two limiting clamps, the two limiting clamps are respectively fixedly arranged on the end surfaces of the two ends of the pressing cylinder, the two limiting clamps and the pressing cylinder are surrounded to form a second accommodating groove for accommodating the T-profile, and the limiting clamps are each provided with a second column hole extending along the second direction;

[0016] A second supporting column, wherein each of the second supporting columns is inserted into the second column hole, and a second strip-shaped hole extending along the length direction of the second supporting column is provided on the second supporting column;

[0017] The second fastener is arranged in a one-to-one correspondence with the second strip hole, and the first end of the second fastener can be inserted into the corresponding part of the second strip hole located in the second receiving groove to drive the second support column to abut against the web of the T-shaped material located in the second receiving groove.

[0018] As an improvement to the above technical solution, the first latch includes:

[0019] a main longitudinal rod, a first end of which is inserted into the first latch tube;

[0020] a cross bar fixedly disposed on the second end of the main longitudinal bar;

[0021] Two connecting longitudinal rods, the first ends of the two connecting longitudinal rods are fixedly arranged on the cross rod at intervals along the second direction, the connecting longitudinal rods extend along the first direction, and the two sleeves are respectively fixedly arranged on the second ends of the two connecting longitudinal rods.

[0022] As an improvement to the above technical solution, the cross-sectional size of the first fastener gradually increases from the first end of the first fastener to the second end of the first fastener;

[0023] The cross-sectional size of the second fastening member gradually increases from the first end of the second fastening member to the second end of the second fastening member.

[0024] As an improvement of the above technical solution, the straightening device further includes:

[0025] A base, wherein a slot is provided on the base;

[0026] A supporting screw rod, the bottom end of which is inserted into the slot, and the supporting screw rod is capable of rotating around its own axis relative to the base;

[0027] A collar is sleeved on the supporting screw and is threadedly connected to the supporting screw, and an outer wall of the collar is fixedly connected to a side wall of the third latch.

[0028] As an improvement of the above technical solution, the base includes:

[0029] base plate;

[0030] The limiting cylinder has a bottom end fixedly arranged on the bottom plate, and the slot is the inner hole of the limiting cylinder.

[0031] As an improvement of the above technical solution, the base also includes a limiting bolt, the bottom end of the supporting screw is provided with an anti-slip groove surrounding the supporting screw, and a limiting hole is provided on the side wall of the limiting cylinder, and the limiting bolt passes through the limiting hole and extends into the anti-slip groove.

[0032] As an improvement to the above technical solution, a pre-straightening device is further included, and the pre-straightening device includes:

[0033] left splint;

[0034] a right splint, which is arranged opposite to the left splint;

[0035] Anti-roll plates, both sides of the left and right clamping plates are provided with the anti-roll plates;

[0036] A support plate, a first end of which is fixedly connected to the left clamping plate, a top of the support plate being provided with a support surface for supporting the T-shaped bar, and a top surface of the support plate being inclined downward from the first end of the support plate to the second end of the support plate;

[0037] A connecting column, a first connecting hole is provided on the second end of the support plate, and a second connecting hole is provided on the right splint. The connecting column passes through the first connecting hole and the second connecting hole to connect the second end of the support plate and the right splint, so that the left splint, the right splint and the support plate are surrounded to form a third accommodating cavity for accommodating the web of the T-profile.

[0038] As an improvement of the above technical solution, the pre-straightening device also includes a first magnetic strip, which is provided on both sides of the left clamping plate and both sides of the right clamping plate. The first magnetic strip on the left clamping plate is provided at the edge of the left clamping plate close to the third accommodating cavity, and the first magnetic strip on the right clamping plate is provided at the edge of the right clamping plate close to the third accommodating cavity.

[0039] As an improvement of the above technical solution, a first abutment plane is provided on the side of the first supporting column close to the top plate, and a second abutment plane perpendicular to the first abutment plane is provided on the end of the first supporting column extending into the first accommodating groove.

[0040] As an improvement of the above technical solution, it further includes a first protection head, wherein the first protection head includes:

[0041] a first guard plate, wherein the first side surface of the guard plate is adapted to be in contact with the wing plate, and the second side surface of the guard plate is adapted to be in contact with the first abutting plane of the first supporting column;

[0042] a second guard plate, the top end of which is fixedly mounted on one end of the first guard plate, the second guard plate being arranged perpendicular to the first guard plate, the first side surface of the second guard plate being adapted to abut against the web, and the second side surface being adapted to abut against the second abutting plane of the first supporting column;

[0043] A first transition surface is provided at the connection between the first guard plate and the second guard plate. The first transition surface is a plane. The first transition surface connects the first side surface of the first guard plate and the first side surface of the second guard plate. The first transition surface and the first side surface of the first guard plate, as well as the first transition surface and the first side surface of the second guard plate, are both arranged at an angle.

[0044] The second magnetic strip is fixedly provided on the second guard plate, and the second magnetic strip is used for adsorbing the web.

[0045] A T-profile welding method, using any of the above-mentioned T-profile welding straightening and pressing fixtures to weld the T-profile to a plate, comprising:

[0046] S1, dividing the T-profile into an initial welding section and a press welding section along the extension direction of the T-profile;

[0047] S2, spot welding the web of the T-shaped bar located in the initial welding area to the plate;

[0048] S3, installing the connecting device on the T-shaped bar, and installing the pressing device and the straightening device on the connecting device;

[0049] S4. Using the second force-applying plate to drive the connecting device to adjust the perpendicularity between the web of the T-profile and the plate, and using the first force-applying plate to drive the pressing cylinder to squeeze the wing of the T-profile away from one side of the web, thereby deforming the press-welded section of the T-profile to adjust the distance between the bottom surface of the web located in the press-welded section and the plate, and spot-welding the press-welded section;

[0050] S5. Full weld the web of the T-shaped bar and the plate.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] The present invention provides a T-profile welding straightening and pressing tool and a T-profile welding method. When welding the T-profile to the plate, the T-profile is divided into an initial welding section and a pressing welding section along the extension direction of the T-profile. The web of the T-profile located in the initial welding area is spot-welded and fixed to the plate to achieve preliminary fixation of the T-profile and the plate. The support frame is placed on the T-profile, and two first fasteners are inserted into the first strip holes on the two first supporting columns, so that the two first supporting columns cooperate to clamp the web of the T-profile. The first end of the first latch is inserted into the first latch tube, and the first end of the second latch is inserted into the The third latch is inserted into the second latch tube, and the verticality between the web of the T-profile and the plate is adjusted by pressing down or lifting the second force plate, and the first force plate is pressed down to drive the pressing cylinder to squeeze the wing of the T-profile, so that the T-profile is deformed to adjust the distance between the bottom surface of the web located in the pressing welding section and the plate. By moving the connecting device, the various parts of the T-profile located in the pressing welding section can be adjusted in turn, and the adjusted pressing welding section can be spot-welded to connect the web of the T-profile and the plate, and finally the web of the T-profile and the plate are fully welded. The T-profile welding straightening and pressing tool of the present invention does not require welding temporary clamps, which reduces damage to the T-profile and the plate. By moving the connecting device, the various parts of the T-profile located in the pressing welding section can be adjusted in turn, with good continuous operation efficiency and fast installation and disassembly speeds, which can effectively improve the welding efficiency of the T-profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 This is a structural schematic diagram of the T-profile welding straightening and pressing tool provided by an embodiment of the present invention when it is installed on the T-profile;

[0054] Figure 2 This is a partial structural diagram of a T-profile welding straightening and pressing tool provided by an embodiment of the present invention when it is installed on a T-profile;

[0055] Figure 3 This is a schematic diagram of the partial structure of the T-profile welding straightening and pressing tool provided by the embodiment of the present invention. Figure 1 ;

[0056] Figure 4 This is an exploded view of a partial structure of a straightening and pressing tool for T-profile welding provided by an embodiment of the present invention;

[0057] Figure 5 This is a schematic diagram of the partial structure of the T-profile welding straightening and pressing tool provided by the embodiment of the present invention. Figure 2 ;

[0058] Figure 6 This is a schematic diagram of the partial structure of the T-profile welding straightening and pressing tool provided by the embodiment of the present invention. Figure 3 ;

[0059] Figure 7 2 is a schematic structural diagram of a pre-straightening device of a straightening and pressing tool for T-profile welding provided by an embodiment of the present invention;

[0060] Figure 8 2 is a schematic structural diagram of a first protective head of a straightening and pressing tool for T-profile welding provided in an embodiment of the present invention;

[0061] Figure 9 It is a structural schematic diagram of the second protective head 6 of the straightening and pressing tool for T-profile welding provided by an embodiment of the present invention.

[0062] In the picture:

[0063] 1. Connecting device;

[0064] 11. Support frame; 111. Top plate; 112. Side plate; 1121. First column hole;

[0065] 12. First supporting column; 121. First strip-shaped hole; 122. First abutting plane; 123. Second abutting plane;

[0066] 13. First fastener; 14. First latch tube;

[0067] 15. Second latch tube;

[0068] 2. Pressing device;

[0069] 21. First latch; 211. Main longitudinal rod; 212. Cross rod; 213. Connecting longitudinal rod;

[0070] 22. Pressed cylinder; 23. Second latch tube; 24. Second latch; 25. First force application plate;

[0071] 26. Sleeve; 27. Rotating shaft; 271. Limiting plate;

[0072] 28. Clamping and adjusting head; 281. Position limiting clamp; 2811. Second column hole; 282. Second supporting column; 2821. Second strip hole; 283. Second fastener;

[0073] 3. Righting device;

[0074] 31. Third latch; 32. Second force application plate;

[0075] 33. Base; 331. Bottom plate; 332. Limiting cylinder; 333. Limiting bolt;

[0076] 34. Support screw; 35. Collar; 36. Rotating handle;

[0077] 4. Pre-righting device;

[0078] 41. Left splint; 42. Right splint; 43. Anti-tilt plate; 44. Support plate; 45. Connecting column; 46. First magnetic strip;

[0079] 5. First protective head; 51. First guard plate; 52. Second guard plate; 53. First transition surface; 54. Second magnetic strip;

[0080] 6. Second protective head; 61. Third protective plate; 62. Fourth protective plate; 63. Second transition surface; 64. Third magnetic strip;

[0081] 100. T-profile; 101. Wing plate; 102. Web plate. DETAILED DESCRIPTION

[0082] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0083] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0084] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0085] In the description of this embodiment, terms such as "upper," "lower," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0086] like Figure 1-Figure 5As shown, this embodiment provides a T-profile welding straightening and pressing tool, which is used to press and straighten the T-profile 100 during welding between the T-profile 100 and a plate (not shown). The T-profile 100 includes a wing plate 101 and a web plate 102. The top of the web plate 102 is fixedly mounted in the middle of the wing plate 101. The connecting device 1 includes a support frame 11, a first supporting column 12, a first fastener 13, a first latch tube 14 and a third latch tube 15. The support frame 11 is provided with a first receiving groove extending along the first direction for accommodating the T-profile 100. The first receiving groove is slidably provided with first supporting columns 12 on both sides along the first direction. The first supporting column 12 is provided with a first strip hole 121 extending along the length direction of the first supporting column 12. The first fastener 13 is arranged in a one-to-one correspondence with the first strip hole 121. The first end of the first fastener 13 can be inserted into the part of the corresponding first strip hole 121 located in the first receiving groove to drive the first supporting column 12 to move toward the direction of the web 102 of the T-profile 100 located in the first receiving groove. The first latch tube 14 is fixedly provided at the top of the support frame 11 and extends along the first direction. The third latch tube 15 is fixedly provided at the top of the first latch tube 14 and extends along a second direction perpendicular to the first direction. The pressing device 2 includes a first latch 21, a pressing cylinder 22, a second latch tube 23, a second latch 24 and a first force plate 25. The first end of the first latch 21 is inserted into the first latch tube 14. The pressing cylinder 22 is arranged at the second end of the first latch 21 and can rotate relative to the first latch 21 around a first rotation axis extending in the second direction. The axis of the pressing cylinder 22 is parallel to the first rotation axis and is spaced apart from the first rotation axis. The second latch tube 23 is fixedly arranged on the pressing cylinder. On the sidewall of the column 22, extending perpendicularly to the axis of the pressing cylinder 22, the first end of the second latch 24 is inserted into the second latch tube 23. A first force-applying plate 25 is fixedly mounted on the second end of the second latch 24. The first force-applying plate 25 can drive the pressing cylinder 22 to rotate relative to the first latch 21 via the second latch 24 and the second latch tube 23, so that the pressing cylinder 22 presses the wing 101 of the T-profile 100 away from the side of the web 102 (i.e., the top surface of the T-profile 100). The straightening device 3 includes a third latch 31 and a second force-applying plate 32. The first end of the third latch 31 is inserted into the third latch tube 15, and the second force-applying plate 32 is fixedly mounted on the second end of the third latch 31.

[0087] The T-profile welding straightening and pressing tool of this embodiment is used. When welding the T-profile 100 to the plate, the T-profile 100 is divided into an initial welding section and a pressing welding section along the extension direction of the T-profile 100. The web 102 of the T-profile 100 located in the initial welding area is spot-welded and fixed to the plate to achieve preliminary fixation of the T-profile 100 and the plate. The support frame 11 is put on the T-profile 100, and the two first supporting columns 12 are respectively inserted into the two first through-column holes 1121 on both sides of the support frame 11, and the two first fasteners 13 are inserted into the first strip holes 121 on the two first supporting columns 12, so that the two first supporting columns 12 cooperate to clamp the web 102 of the T-profile 100. The first end of the first latch 21 is inserted into the first latch tube 1 4, insert the first end of the second latch 24 into the second latch tube 23, and insert the third latch 31 into the third latch tube 15. By pressing down the second force applying plate 32, the verticality between the web 102 of the T-profile 100 and the plate is adjusted. By pressing down the first force applying plate 25, the pressing cylinder 22 is driven to squeeze the wing 101 of the T-profile 100, so that the T-profile 100 is deformed to adjust the distance between the bottom surface of the web 102 located in the pressing welding section and the plate. By moving the connecting device 1, the various parts of the T-profile 100 located in the pressing welding section can be adjusted in turn, and the adjusted pressing welding section can be spot-welded to connect the web 102 of the T-profile 100 and the plate. Finally, the web 102 of the T-profile 100 and the plate are fully welded. The T-profile welding straightening and pressing tooling of this embodiment does not require welding temporary clamps, which reduces damage to the T-profile 100 and the plate. By moving the connecting device 1, the various areas of the T-profile 100 located in the pressing and welding section can be adjusted in turn, with good continuous operation efficiency and fast installation and disassembly speeds, which can effectively improve the welding efficiency of the T-profile 100.

[0088] Alternatively, as Figures 1-6 As shown, the support frame 11 includes a top plate 111 and two side plates 112. The two side plates 112 are fixedly arranged on the top plate 111 and are spaced apart along the second direction. The top plate 111 and the side plates 112 are surrounded to form a first accommodating groove. The side plates 112 are each provided with a first through-column hole 1121 that passes through the side plates 112 along the second direction. The first top support column 12 is inserted into the first through-column hole 1121 so that the first top support column 12 can be slidably set on the support frame 11.

[0089] Alternatively, as Figures 1-6As shown, the pressing device 2 further includes two sleeves 26 and a rotating shaft 27. The two sleeves 26 are fixedly disposed on the end surface of the second end of the first latch 21 at intervals along the second direction. The pressing cylinder 22 is disposed between the two sleeves 26. The pressing cylinder 22 is provided with a rotating shaft hole parallel to the second direction. The rotating shaft 27 passes through the rotating shaft hole, and its two ends are respectively inserted into the inner holes of the two sleeves 26. The outer diameter of the rotating shaft 27 is equal to the inner diameter of the rotating shaft hole. The axis of the pressing cylinder 22 is parallel to the axis of the rotating shaft 27 and is spaced apart. The rotating shaft 27 can rotate relative to the sleeves 26. The rotation of the rotating shaft 27 relative to the sleeve 26 can realize the rotation of the pressing cylinder 22.

[0090] Alternatively, as Figure 5 and Figure 6 As shown, limit plates 271 are provided at both ends of the rotating shaft 27. The limit plates 271 are located on the side of the sleeve 26 away from the pressing cylinder 22. The cross-sectional size of the limit plates 271 is larger than the inner diameter of the sleeve 26. By providing limit plates 271 at both ends of the rotating shaft 27, the rotating shaft 27 can be prevented from falling out of the sleeve 26.

[0091] Alternatively, as Figure 1 and Figure 5 As shown, the extension direction of the second latch tube 23 is parallel to the plane defined by the first rotation axis and the axis of the pressing cylinder 22. After the T-bar welding straightening and pressing fixture is attached to the T-bar 100, the second latch tube 23 is located on the side of the pressing cylinder 22 away from the T-bar 100, and the axis of the pressing cylinder 22 is located on the side of the axis of the rotating shaft 27 closer to the first force-applying plate 25. Consequently, when the first force-applying plate 25 is pressed downward, the pressing cylinder 22 rotates relative to the second latch 24. At this point, the pressing cylinder 22 acts like a cam, pressing downward against the top surface of the wing 101 of the T-bar 100 as it rotates. Those skilled in the art will understand that if the connecting device 1 is located in the area where the T-profile 100 is welded to the plate, and the pressing cylinder 22 is away from the area where the T-profile 100 is welded to the plate, then when the pressing cylinder 22 squeezes the wing 101 of the T-profile 100 downward, the squeezed area of ​​the T-profile 100 deforms toward the plate; on the contrary, if the connecting device 1 is away from the area where the T-profile 100 is welded to the plate, and the pressing cylinder 22 is located in the area where the T-profile 100 is welded to the plate, then when the pressing cylinder 22 squeezes the wing 101 of the T-profile 100 downward, the area of ​​the T-profile 100 squeezed by the pressing cylinder 22 does not deform, and the T-profile 100 connected by the connecting device 1 deforms toward the direction away from the plate. That is to say, by adjusting the relative position between the connecting device 1 and the pressing cylinder 22 and the welded fixed area of ​​the T-profile 100, the area where the T-profile 100 is too close to the plate can be adjusted upward, and the area where the T-profile 100 is too far away from the plate can be adjusted downward.

[0092] Alternatively, as Figure 1 and Figure 5 As shown, the pressing device 2 also includes a clamping and adjusting head 28, which includes two limiting clamps 281, a second supporting column 282, and a second fastener 283. The two limiting clamps 281 are respectively fixedly mounted on the end surfaces of the pressing cylinder 22. The two limiting clamps 281 and the pressing cylinder 22 form a second accommodating groove for accommodating the T-shaped bar 100. The limiting clamps 281 are each provided with a second through-hole 2811 extending along the second direction. The second supporting column 282 is inserted into each of the second through-holes 2811, and the second supporting column 282 is provided with a second strip-shaped hole 2821 extending along the length of the second supporting column 282. The second fasteners 283 are arranged in a one-to-one correspondence with the second strip-shaped holes 2821. The first ends of the second fasteners 283 can be inserted into the portion of the corresponding second strip-shaped holes 2821 located within the second accommodating groove, thereby driving the second supporting columns 282 to abut against the web 102 of the T-profile 100 located within the second accommodating groove. The two second fasteners 283 drive the two second supporting columns 282 on both sides of the web 102 of the T-profile 100 to abut against both sides of the web 102, thereby adjusting the relative position of the pressing cylinder 22 and the T-profile 100 so that the center of the pressing cylinder 22 in the longitudinal direction is aligned with the center of the wing 101 of the T-profile 100 in the width direction. This ensures that the direction in which the pressing cylinder 22 causes the T-profile 100 to deform is perpendicular to the longitudinal direction of the T-profile 100, thereby preventing the T-profile 100 from being twisted when the pressing cylinder 22 squeezes the T-profile 100.

[0093] Alternatively, as Figure 1 、 Figure 2 and Figure 5 As shown, the first latch 21 includes a main longitudinal rod 211, a cross rod 212 and two connecting longitudinal rods 213. The first end of the main longitudinal rod 211 is inserted into the first latch tube 14. The cross rod 212 is fixedly set on the second end of the main longitudinal rod 211. The first ends of the two connecting longitudinal rods 213 are fixedly set on the cross rod 212 at intervals along the second direction. The connecting longitudinal rods 213 extend along the first direction, and the two sleeves 26 are respectively fixedly set on the second ends of the two connecting longitudinal rods 213. The two sleeves 26 are respectively supported and fixed by the two connecting longitudinal rods 213, and the center line of the main longitudinal rod 211 is perpendicular to the axis of the inner hole of the sleeve 26 and intersects with the axis of the inner hole of the sleeve 26. The distance between the center line of the two connecting longitudinal rods 213 and the center line of the main longitudinal rod 211 is equal.

[0094] Alternatively, as Figure 1 、 Figure 2 、 Figure 3 and Figure 5As shown, the cross-sectional dimensions of the first fastener 13 gradually increase from the first end to the second end of the first fastener 13. Thus, as the first end of the first fastener 13 is gradually inserted into the portion of the first strip-shaped hole 121 located within the first receiving groove, the first supporting column 12 can gradually approach the web 102 of the T-shaped profile 100. The cross-sectional dimensions of the second fastener 283 gradually increase from the first end to the second end of the second fastener 283. Thus, as the first end of the second fastener 283 is gradually inserted into the portion of the second strip-shaped hole 2821 located within the second receiving groove, the second supporting column 282 can gradually approach the web 102 of the T-shaped profile 100.

[0095] Further, if Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, when the first fastener 13 is inserted into the first strip-shaped hole 121, the cross-section of the first fastener 13 parallel to the length direction of the first strip-shaped hole 121 and parallel to the depth direction of the first strip-shaped hole 121 is a triangle. When the second fastener 283 is inserted into the second strip-shaped hole 2821, the cross-section of the second fastener 283 parallel to the length direction of the second strip-shaped hole 2821 and parallel to the depth direction of the second strip-shaped hole 2821 is a triangle.

[0096] Alternatively, as Figure 1-Figure 4 As shown, the straightening device 3 also includes a base 33, a supporting screw 34, a collar 35 and a rotating handle 36. A slot is provided on the base 33. The bottom end of the supporting screw 34 is inserted into the slot, and the supporting screw 34 can rotate relative to the base 33 around its own axis. The collar 35 is sleeved on the supporting screw 34 and is threadedly connected to the supporting screw 34. The outer wall of the collar 35 is fixedly connected to the side wall of the third latch 31. By rotating the supporting screw 34, the supporting screw 34 is rotated relative to the collar 35, and the bottom end of the supporting screw 34 presses against the base 33. Under the reaction of the base 33, the collar 35 is driven to move upward. The collar 35 drives the T-shaped bar 100 to tilt away from the supporting screw 34 through the abutment plane of the third latch 31 and the first supporting column 12 close to the collar 35. That is, by pressing down or stepping on the second force-applying plate 32, the T-profile 100 can be driven to tilt toward the second force-applying plate 32, or by rotating the supporting screw 34, the T-profile 100 can be driven to tilt away from the supporting screw 34. Therefore, regardless of whether the T-profile 100 tilts to the left or to the right, the verticality of the T-profile 100 can be adjusted very conveniently and quickly by the straightening device 3. It will be understood by those skilled in the art that when adjusting the T-profile 100 by pressing down or stepping on the second force-applying plate 32, the supporting screw 34 should be temporarily uninstalled to prevent the supporting screw 34 from affecting the up and down swinging of the third latch 31.

[0097] Further, if Figure 1-Figure 4 As shown, the straightening device 3 further includes a rotating handle 36, which is fixedly arranged on the top end of the supporting screw 34. The supporting screw 34 is driven to rotate by the rotating handle 36, which facilitates the rotation operation of the supporting screw 34.

[0098] Alternatively, as Figure 1-Figure 4 As shown, the base 33 includes a bottom plate 331, a limiting cylinder 332, and a limiting bolt 333. The bottom end of the limiting cylinder 332 is fixedly mounted on the bottom plate 331. The slot is the inner hole of the limiting cylinder 332, and the side wall of the limiting cylinder 332 is provided with a limiting hole. The bottom end of the supporting screw 34 is provided with an anti-slip groove surrounding the supporting screw 34. The limiting bolt 333 extends through the limiting hole and into the anti-slip groove. The cooperation between the limiting bolt 333 and the anti-slip groove allows the bottom end of the supporting screw 34 to rotate stably in the limiting cylinder 332 without falling out of the limiting cylinder 332.

[0099] Alternatively, as Figure 3 As shown, a first abutting plane 122 is provided on one side of the first supporting column 12 close to the top plate 111 , and a second abutting plane 123 perpendicular to the first abutting plane 122 is provided at the end of the first supporting column 12 extending into the first accommodating groove.

[0100] Alternatively, as Figure 8 As shown, the straightening and pressing tool for T-profile welding provided in this embodiment also includes a first protective head 5, which includes a first guard plate 51, a second guard plate 52, and a second magnetic strip 54. The first side of the first guard plate 51 is used to fit with the wing plate 101, and the second side is used to fit with the first abutting plane 122 of the first supporting column 12. The top end of the second guard plate 52 is fixedly set at one end of the first guard plate 51. The first side of the second guard plate 52 is used to fit with the web 102, and the second side is used to fit with the second abutting plane 123 of the first supporting column 12. A first transition surface 53 is provided at the connection between the first guard plate 51 and the second guard plate 52. The first transition surface 53 is a plane and connects the first side of the first guard plate 51 and the first side of the second guard plate 52. The first transition surface 53 and the first side of the first guard plate, as well as the first transition surface 53 and the first side of the second guard plate 52, are both arranged at an angle. A second magnetic strip 54 is fixedly mounted on the second guard plate 52 and is used to attract the web 102. In this embodiment, a second magnetic strip 54 is mounted on both end surfaces of the second guard plate 52. The thickness of the second magnetic strip 54 is equal to that of the second guard plate 52 to prevent the second magnetic strip 54 from obstructing the contact between the first side surface of the second guard plate 52 and the web 102.

[0101] The second magnetic strip 54 can absorb the T-profile 100, so that the first protective head 5 can be very conveniently absorbed on the web 102 of the T-profile 100 through the second magnetic strip 54. When the straightening and pressing tool for T-profile welding is used, the second guard plate 52 can be set between the first top support column 12 and the web 102 to separate the first top support column 12 and the web 102, and the first guard plate 51 can be set between the first top support column 12 and the wing plate 101 to separate the first top support column 12 and the wing plate 101. In other words, the first top support column 12 abuts against the wing plate 101 of the T-profile 100 through the first guard plate 51, and abuts against the web 102 of the T-profile 100 through the second guard plate 52. The connection between the first guard plate 51 and the second guard plate 52 is chamfered to form a first transition surface 53, so as to prevent the transition structure at the connection between the web 102 and the wing plate 101 from hindering the first protective head 5 from being attached to both the web 102 and the wing plate 101 at the same time.

[0102] Alternatively, as Figure 9 As shown, the straightening and pressing tool for T-profile welding provided in this embodiment also includes a second protective head 6, which includes a third protective plate 61, a fourth protective plate 62, and a third magnetic strip 64. The first side of the third protective plate 61 is used to mate with the wing plate 101, and the second side is used to mate with the first abutment plane 122 of the first supporting column 12. The top of the fourth protective plate 62 is fixedly mounted on one end of the third protective plate 61, and the fourth protective plate 62 is arranged perpendicular to the third protective plate 61. The first side of the fourth protective plate 62 is used to mate with the web 102, and the second side is used to mate with the first abutment plane 122 of the first supporting column 12. A second transition surface 63 is provided at the connection between the third protective plate 61 and the fourth protective plate 62. The second transition surface 63 connects the first side of the third protective plate 61 and the first side of the fourth protective plate 62, and the second transition surface 63 is an arcuate surface. A third magnetic strip 64 is fixedly mounted on the fourth protective plate 62, and the third magnetic strip 64 is used to attract the web 102.

[0103] The third magnetic strip 64 can absorb the T-profile 100, so that the second protective head 6 can be very conveniently absorbed on the web 102 of the T-profile 100 through the third magnetic strip 64. When the straightening and pressing tool for T-profile welding is used, the fourth guard plate 62 can be set between the first top support column 12 and the web 102 to separate the first top support column 12 and the web 102, and the third guard plate 61 can be set between the first top support column 12 and the wing plate 101 to separate the first top support column 12 and the wing plate 101. In other words, the first top support column 12 abuts against the wing plate 101 of the T-profile 100 through the third guard plate 61, and abuts against the web 102 of the T-profile 100 through the fourth guard plate 62. By providing an arc transition plate between the third guard plate 61 and the fourth guard plate 62 , the transition structure at the connection between the web 102 and the wing plate 101 is prevented from hindering the second protective head 6 from being attached to the web 102 and the wing plate 101 at the same time.

[0104] In this embodiment, the second protective head 6 is provided in multiple types, and each type of the second protective head 6 has an arc transition plate with a different curvature, so as to adapt to different types of T-profiles 100 .

[0105] Before the straightening and pressing fixture for T-section welding is connected to the T-section 100 , a first protective head 5 or a second protective head 6 is selected according to the model of the T-section 100 .

[0106] Alternatively, as Figure 1 、 Figure 2 and Figure 6 As shown, the straightening and pressing tooling for T-profile welding provided in this embodiment also includes a pre-straightening device 4, which includes a left splint 41, a right splint 42, an anti-tilt plate 43, a support plate 44 and a connecting column 45. The right splint 42 is arranged opposite to the left splint 41. Anti-tilt plates 43 are provided on both sides of the left splint 41 and the right splint 42. The anti-tilt plates 43 are used to support the left splint 41 and the right splint 42 to prevent the left splint 41 and the right splint 42 from tipping over. The first end of the support plate 44 is fixedly connected to the left splint 41, and a support surface for supporting the T-profile 100 is provided on the top of the support plate 44. From the first end of the support plate 44 to the second end of the support plate 44, the top surface of the support plate 44 is inclined downward. A first connecting hole is provided at the second end of support plate 44, and a second connecting hole is provided on right clamping plate 42. Connecting post 45 passes through the first and second connecting holes to connect the second end of support plate 44 to right clamping plate 42. This allows left clamping plate 41, right clamping plate 42, and support plate 44 to enclose a third accommodating cavity for accommodating web 102 of T-bar 100. Support plate 44 connects left clamping plate 41 and right clamping plate 42. When T-bar 100 is placed on pre-straightening device 4, support plate 44 supports the bottom surface of web 102 of T-bar 100.

[0107] In this embodiment, if Figure 1 、 Figure 2 and Figure 6 As shown, both the left and right clamping plates 41 and 42 are right-angled triangles. This ensures that when the pre-straightening device 4 is placed on the sheet, both sides of the third accommodating cavity are perpendicular to the sheet. Before welding the T-bar 100 to the sheet, several pre-straightening devices 4 are spaced apart on the sheet according to the predetermined welding positions of the T-bar 100. The T-bar 100 is then placed on the pre-straightening devices 4, ensuring that the web 102 of the T-bar 100, placed on the pre-straightening devices 4, is substantially perpendicular to the sheet, thus pre-straightening the T-bar 100.

[0108] Alternatively, as Figure 1 、 Figure 2 and Figure 6As shown, the pre-straightening device 4 also includes a first magnetic strip 46, which is provided on both sides of the left clamping plate 41 and the right clamping plate 42. The first magnetic strip 46 on the left clamping plate 41 is located at the edge of the left clamping plate 41 near the third accommodating cavity, and the first magnetic strip 46 on the right clamping plate 42 is located at the edge of the right clamping plate 42 near the third accommodating cavity. By providing the first magnetic strip 46 on the left clamping plate 41 and the right clamping plate 42, the left clamping plate 41 and the right clamping plate 42 can be closely attached to the web 102 of the T-profile 100, thereby improving the verticality of the T-profile 100 and ensuring the pre-straightening effect.

[0109] When welding T-shaped bars to plates, the number of connecting devices 1, straightening devices 3 and pre-straightening devices 4 can be selected as needed. Figure 1 As shown, in this embodiment, two connecting devices 1, two straightening devices 3 and two pre-straightening devices 4 are provided.

[0110] The manufacturing method of the straightening and pressing tool for T-profile welding provided in this embodiment is as follows:

[0111] 1. The connecting device 1 is mainly made of steel plates and steel columns processed and welded. Specifically, two steel plates with a length of 50mm, a width of 50mm, and a thickness of 10mm and one steel plate with a length of 70mm, a width of 50mm, and a thickness of 10mm are spliced ​​into an n-shaped structure, which is also the support frame 11. First column holes 1121 with a height of 22mm and a width of 22mm are drilled in the middle of both sides of the n-shaped structure. The first column holes 1121 are used to install the first top support column 12. Two sections of steel columns with a length of 20mm, a width of 20mm, and a length of 60mm are used as the first top support column 12. A first strip hole 121 with a height of 10mm and a length of 30mm is drilled in the middle of the first top support column 12. The first fastener 13 is a triangular strip with a length of 60mm, a height of 10mm, and a width of 5mm-30mm made from steel plates. A small n-shaped structure is welded to the top of the n-shaped structure to form the first latch tube 14. The small n-shaped structure consists of a steel plate 20 mm long, 48 mm wide, and 10 mm thick, and two steel plates 20 mm long, 28 mm wide, and 28 mm high. A square steel tube 30 mm long, 30 mm high, and 30 mm wide with an inner hole 25 mm high and 25 mm wide is used as the third latch tube 15.

[0112] 2. The pressing device 2 is mainly made of square steel, round steel, steel pipe and steel plate processing, assembly and welding. The main longitudinal rod 211 is a square steel with a length of 300mm, a width of 25mm and a height of 25mm. The cross bar 212 is a square steel with a length of 90mm, a width of 25mm and a height of 25mm. The connecting longitudinal rod 213 is a square steel with a length of 60mm, a width of 25mm and a height of 25mm. The sleeve is a bearing steel pipe with an outer diameter of 28mm, an inner diameter of 22mm and a length of 20mm. The pressing cylinder 22 uses a round steel with a length of 40mm and a diameter of 40mm. A hole with a diameter of 20mm is drilled 5mm away from the center of the round steel, which is the shaft hole. A steel pipe with an outer diameter of 20mm is used as the shaft 27, which passes through the sleeve and the pressing cylinder 22. Two steel plates with a length of 40mm, a width of 40mm and a thickness of 10mm are welded on both sides of the front end surface of the pressing cylinder 22. A second column hole 2811 with a height of 22mm and a width of 22mm is drilled in the middle of the steel plate. The steel plate is the limiting splint 281. Two sections of steel columns with a length of 20mm, a width of 20mm and a length of 60mm are used as the second supporting columns 282. A second strip groove with a height of 10mm and a depth of 30mm is drilled in the middle of the second supporting columns 282. A second fastener 283 with a length of 60mm, a height of 10mm and a width of 5mm-30mm is formed by processing the steel plate. A second pin tube 23 with a length of 60mm, a height of 30mm, a width of 30mm and an inner hole of 25mm and a height of 25mm is welded on the top of the pressing cylinder 22. A square steel tube with a length of 500mm, a width of 25mm and a height of 25mm and an inner hole of 20mm and a height of 20mm is used as the second pin 24, and a steel plate with a diameter of 150mm and a thickness of 5mm is set at one end of the second pin 24 as the first force applying plate 25.

[0113] 3. The righting device 3 is primarily constructed by welding together steel pipes and screws. A square steel pipe measuring 300 mm long, 25 mm wide, 25 mm high, and with an inner hole width of 20 mm and an inner height of 20 mm is used as the third latch 31. An M20 nut is welded to one end of the third latch 31, 30 mm from the end, as a collar 35. A 200 mm long M20 screw serves as a support screw 34. A 150 mm long, 20 mm diameter rotary handle 36 is welded to one end of the support screw 34, and a base 33 is located at the other end. A 150 mm diameter, 5 mm thick steel plate is welded to the end of the third latch 31 as the second force-applying plate 32.

[0114] 4. The left and right clamping plates 41 and 42 of the pre-straightening device 4 are both constructed from right-angled triangular steel plates with a base length of 50mm, a height of 50mm, and a thickness of 3mm. A right-angled trapezoidal bar measuring 30mm long, 3mm thick, and 4mm-10mm wide serves as a support plate 44. One end of the support plate 44 is welded to one of the right-angled triangular steel plates, and a 5mm long, 3mm diameter cylinder is attached to the other end as a connecting post 45. A second connecting hole with a diameter of 3mm is drilled in the bottom edge of the other right-angled triangular steel plate. A first magnetic strip 46 measuring 20mm long, 5mm wide, and 5mm high is fixed to each vertical edge of the two triangular plates. When the pre-straightening device 4 supports the T-shaped bar 100, the first magnetic strip 46 attracts both sides of the T-shaped bar 100, and the support plate 44 applies force to keep the T-shaped bar 100 upright. An anti-roll plate 43 measuring 30mm long, 10mm wide, and 3mm thick is welded to the bottom of the right-angled triangular steel plate.

[0115] The first and second protective heads 5 and 6 are primarily made of steel plate. A 50mm long, 50mm wide steel plate is bent into a right angle, the right angle is cut, and third magnetic strips 64, 20mm long, 5mm wide, and 5mm high, are installed at both ends of the steel plate to form the first protective head 5. A 50mm long, 50mm wide steel plate is rolled and bent, forming an arc at the bend. Third magnetic strips 64, 20mm long, 5mm wide, and 5mm high, are installed at both ends of the steel plate to form the second protective head 6.

[0116] This embodiment further provides a T-profile welding method, which uses the aforementioned T-profile welding straightening and pressing tool to weld the T-profile 100 to a plate, including:

[0117] S1. According to the predetermined welding position of the T-shaped bar 100 , several pre-straightening devices 4 are arranged at intervals on the plate, and the T-shaped bar 100 is placed on the pre-straightening devices 4 .

[0118] S2. Divide the T-profile 100 along its extension direction into an initial welding section and a press-welded section. Also divide the joint between the web 102 and the sheet material into an initial welding section and a press-welded section. Specifically, determine the location where the joint between the bottom surface of the web 102 of the T-profile 100 and the sheet material is smallest (i.e., the location where the distance between the bottom surfaces of the web 102 is closest). The area of ​​the T-profile 100 within a predetermined distance on either side of this location is defined as the initial welding section. The remaining portion of the T-profile 100 is defined as the press-welded section.

[0119] S3. The web 102 of the T-shaped bar 100 located in the initial welding area is fixed to the plate by spot welding.

[0120] S4. Install the connecting device 1 on the T-shaped bar 100 , and install the pressing device 2 and the straightening device 3 on the connecting device 1 .

[0121] S5. Remove the pre-straightening device 4.

[0122] S6. The second force-applying plate 32 drives the connecting device 1 to adjust the verticality between the web 102 of the T-profile 100 and the plate. The first force-applying plate 25 drives the pressing cylinder 22 to squeeze the wing 101 of the T-profile 100 away from the web 102, causing the pressing welding section of the T-profile 100 to deform. This adjusts the distance between the bottom surface of the web 102 located in the pressing welding section and the plate, and spot welds the pressing welding section. It will be understood by those skilled in the art that after the T-profile 100 is placed on the pre-straightening device 4, the position where the seam between the bottom surface of the web 102 of the T-profile 100 and the plate is the smallest is near the middle of the T-profile 100, that is, there are pressing welding sections on both sides of the initial welding section. Therefore, preferably, the press welding section is divided into several sections to be press-welded, and each section to be press-welded located on one side of the initial welding section is straightened, pressed and spot-welded section by section along the direction gradually away from the initial welding section. Then, each section to be press-welded located on the other side of the initial welding section is straightened, pressed and spot-welded section by section along the direction gradually away from the initial welding section.

[0123] S7. Full weld the web 102 of the T-shaped bar 100 and the plate.

[0124] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A straightening and pressing tool for T-section welding, characterized in that: include: A connecting device (1) comprising a support frame (11), a first supporting column (12), a first fastener (13), a first latch tube (14) and a third latch tube (15), wherein the support frame (11) is provided with a first receiving groove extending along a first direction for accommodating the T-shaped bar (100), the first supporting column (12) being slidably provided on both sides of the first receiving groove along the first direction, the first supporting column (12) being provided with a first strip hole (121) extending along the length direction of the first supporting column (12), the first fastener (13) being connected to the first strip hole (121), 21) are arranged in a one-to-one correspondence, the first end of the first fastener (13) can be inserted into the portion of the corresponding first strip hole (121) located in the first receiving groove to drive the first supporting column (12) to move in a direction close to the web (102) of the T-shaped material (100) located in the first receiving groove, the first latch tube (14) is fixedly arranged on the top of the support frame (11) and extends along the first direction, and the third latch tube (15) is fixedly arranged on the top of the first latch tube (14) and extends along a second direction perpendicular to the first direction; A pressing device (2) comprises a first latch (21), a pressing cylinder (22), a second latch tube (23), a second latch (24) and a first force plate (25), wherein the first end of the first latch (21) is inserted into the first latch tube (14), the pressing cylinder (22) is arranged at the second end of the first latch (21) and can rotate relative to the first latch (21) around a first rotation axis extending along the second direction, the axis of the pressing cylinder (22) is parallel to the first rotation axis and is spaced apart from the first rotation axis, and the second latch tube (23) is fixedly arranged at the second end of the first latch (21). The second latch (24) is disposed on the side wall of the pressing cylinder (22) and extends in a direction perpendicular to the axis of the pressing cylinder (22). The first end of the second latch (24) is inserted into the second latch tube (23). The first force plate (25) is fixedly disposed on the second end of the second latch (24). The first force plate (25) can drive the pressing cylinder (22) to rotate relative to the first latch (21) via the second latch (24) and the second latch tube (23), so that the pressing cylinder (22) squeezes the wing (101) of the T-shaped material (100) away from one side of the web (102). A straightening device (3) comprises a third latch (31) and a second force applying plate (32), wherein the first end of the third latch (31) is inserted into the third latch tube (15), and the second force applying plate (32) is fixedly arranged on the second end of the third latch (31).

2. The T-profile welding straightening and pressing tool according to claim 1, characterized in that: The support frame (11) includes a top plate (111) and two side plates (112), the two side plates (112) are fixedly arranged on the top plate (111) and spaced apart along the second direction, the top plate (111) and the side plates (112) are arranged to form the first accommodating groove, the side plates (112) are each provided with a first column hole (1121) passing through the side plates (112) along the second direction, and the first supporting column (12) is inserted into the first column hole (1121).

3. The T-profile welding straightening and pressing tool according to claim 2, characterized in that: The pressing device (2) further comprises: Two sleeves (26), the two sleeves (26) being fixedly arranged on the end surface of the second end of the first latch (21) at intervals along the second direction; A rotating shaft (27), the pressing cylinder (22) is arranged between the two sleeves (26), the pressing cylinder (22) is provided with a rotating shaft hole parallel to the second direction, the rotating shaft (27) passes through the rotating shaft hole, and both ends are respectively inserted into the inner holes of the two sleeves (26), the outer diameter of the rotating shaft (27) is equal to the inner diameter of the rotating shaft hole, the axis of the pressing cylinder (22) is parallel to the axis of the rotating shaft (27) and is arranged at a distance, and the rotating shaft (27) can rotate relative to the sleeves (26).

4. The T-profile welding straightening and pressing tool according to claim 3, characterized in that: The extension direction of the second latch tube (23) is parallel to a plane defined by the first rotation axis and the axis of the pressing cylinder (22).

5. The T-profile welding straightening and pressing tool according to claim 4, characterized in that: The pressing device (2) further comprises a clamping and adjusting head (28), and the clamping and adjusting head (28) comprises: Two limiting clamps (281), the two limiting clamps (281) are respectively fixedly arranged on the end surfaces of both ends of the pressing cylinder (22), the two limiting clamps (281) and the pressing cylinder (22) are surrounded to form a second accommodating groove for accommodating the T-shaped bar (100), and the limiting clamps (281) are each provided with a second column hole (2811) extending along the second direction; A second supporting column (282), wherein each of the second through-column holes (2811) is provided with a second supporting column (282), and a second strip-shaped hole (2821) extending along the length direction of the second supporting column (282) is provided on the second supporting column (282); A second fastener (283) is provided in one-to-one correspondence with the second strip-shaped hole (2821), and a first end of the second fastener (283) can be inserted into the portion of the corresponding second strip-shaped hole (2821) located in the second receiving groove to drive the second supporting column (282) to abut against the web (102) of the T-shaped bar (100) located in the second receiving groove.

6. The T-profile welding straightening and pressing tool according to claim 5, characterized in that: The first latch (21) comprises: A main longitudinal rod (211), a first end of which is inserted into the first latch tube (14); A cross bar (212) fixedly disposed on the second end of the main longitudinal bar (211); Two connecting longitudinal rods (213), the first ends of the two connecting longitudinal rods (213) are fixedly arranged on the cross rod (212) at intervals along the second direction, the connecting longitudinal rods (213) extend along the first direction, and the two sleeves (26) are respectively fixedly arranged on the second ends of the two connecting longitudinal rods (213).

7. The T-profile welding straightening and pressing tool according to claim 5, characterized in that: The cross-sectional size of the first fastener (13) gradually increases from the first end of the first fastener (13) to the second end of the first fastener (13); From the first end of the second fastener (283) to the second end of the second fastener (283), the cross-sectional size of the second fastener (283) gradually increases.

8. The T-profile welding straightening and pressing tool according to any one of claims 1 to 7, characterized in that: The straightening device (3) further comprises: A base (33), wherein a slot is provided on the base (33); A supporting screw rod (34), the bottom end of which is inserted into the slot, and the supporting screw rod (34) is capable of rotating around its own axis relative to the base (33); A collar (35) is sleeved on the supporting screw (34) and is threadedly connected to the supporting screw (34); an outer wall of the collar (35) is fixedly connected to a side wall of the third latch (31).

9. The T-profile welding straightening and pressing tool according to claim 8, characterized in that: The base (33) comprises: bottom plate (331); The limiting cylinder (332) has a bottom end fixedly disposed on the bottom plate (331), and the slot is an inner hole of the limiting cylinder (332).

10. The T-profile welding straightening and pressing tool according to claim 9, characterized in that: The base (33) further includes a limiting bolt (333), the bottom end of the supporting screw (34) is provided with an anti-slip groove surrounding the supporting screw (34), a limiting hole is provided on the side wall of the limiting cylinder (332), and the limiting bolt (333) passes through the limiting hole and extends into the anti-slip groove.

11. The T-profile welding straightening and pressing tool according to any one of claims 1 to 7, characterized in that: It also includes a pre-straightening device (4), which includes: left splint (41); a right splint (42) disposed opposite to the left splint (41); Anti-roll plates (43), the anti-roll plates (43) being provided on both sides of the left clamping plate (41) and the right clamping plate (42); A support plate (44), a first end of which is fixedly connected to the left clamping plate (41), a support surface for supporting the T-shaped bar (100) being provided on the top of the support plate (44), and a top surface of the support plate (44) being inclined downward from the first end of the support plate (44) to the second end of the support plate (44); A connecting column (45) is provided on the second end of the support plate (44), and a second connecting hole is provided on the right clamping plate (42). The connecting column (45) passes through the first connecting hole and the second connecting hole to connect the second end of the support plate (44) and the right clamping plate (42), so that the left clamping plate (41), the right clamping plate (42) and the support plate (44) are surrounded to form a third accommodating cavity for accommodating the web (102) of the T-shaped bar (100).

12. The T-section welding straightening and pressing tool according to claim 11, characterized in that: The pre-straightening device (4) further includes a first magnetic strip (46), and the first magnetic strip (46) is provided on both sides of the left clamping plate (41) and both sides of the right clamping plate (42). The first magnetic strip (46) on the left clamping plate (41) is provided at an edge of the left clamping plate (41) close to the third accommodating cavity, and the first magnetic strip (46) on the right clamping plate (42) is provided at an edge of the right clamping plate (42) close to the third accommodating cavity.

13. The T-profile welding straightening and pressing tool according to any one of claims 2 to 7, characterized in that: A first abutting plane (122) is provided on one side of the first supporting column (12) close to the top plate (111), and a second abutting plane (123) perpendicular to the first abutting plane (122) is provided at the end of the first supporting column (12) extending into the first accommodating groove.

14. The T-profile welding straightening and pressing tool according to claim 13, characterized in that: It also includes a first protection head (5), which includes: A first guard plate (51), a first side surface of which is adapted to abut against the wing plate (101), and a second side surface of which is adapted to abut against the first abutting plane (122) of the first supporting column (12); a second guard plate (52), the top end of which is fixedly arranged on one end of the first guard plate (51); the second guard plate (52) is arranged perpendicular to the first guard plate (51); a first side surface of the second guard plate (52) is used to fit with the web (102); and a second side surface is used to fit with the second abutting plane (123) of the first supporting column (12); A first transition surface (53) is provided at the connection between the first guard plate (51) and the second guard plate (52); the first transition surface (53) is a plane; the first transition surface (53) connects the first side surface of the first guard plate (51) and the first side surface of the second guard plate (52); the first transition surface (53) and the first side surface of the first guard plate, as well as the first transition surface (53) and the first side surface of the second guard plate (52), are both arranged at an angle; A second magnetic strip (54) is fixedly provided on the second guard plate (52), and the second magnetic strip (54) is used to absorb the web (102).

15. A T-profile welding method, characterized in that: The method of welding a T-profile (100) to a plate using the straightening and pressing tool for T-profile welding according to any one of claims 1 to 14 comprises: S1, dividing the T-shaped profile (100) into an initial welding section and a pressing welding section along the extension direction of the T-shaped profile (100); S2, spot welding the web (102) of the T-shaped bar (100) located in the initial welding area to the plate; S3, installing the connecting device (1) on the T-shaped bar (100), and installing the pressing device (2) and the straightening device (3) on the connecting device (1); S4, driving the connecting device (1) to adjust the verticality between the web (102) of the T-profile (100) and the plate through the second force-applying plate (32), and driving the pressing cylinder (22) to squeeze the wing (101) of the T-profile (100) away from one side of the web (102) through the first force-applying plate (25), so that the pressing welding section of the T-profile (100) is deformed to adjust the distance between the bottom surface of the web (102) located in the pressing welding section and the plate, and spot welding the pressing welding section; S5. Full welding is performed to weld the web (102) of the T-shaped bar (100) and the plate.

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