A die for welding transformer foot channel steel

Abstract

The present invention discloses a mold for welding transformer foot channel steel, specifically relates to the field of channel steel welding, including a support type flipping mechanism, the support type flipping mechanism includes a limit column support seat, a first annular limit frame is fixedly installed on the top of the limit column support seat, an annular slide groove is opened on the inner wall of the first annular limit frame, a second annular limit frame is arranged inside the first annular limit frame, a limit type balance frame is fixedly installed at the horizontal center line position of the second annular limit frame, and the first limit mechanism is fixedly connected inside the support type flipping mechanism. After the foot channel steel and the connecting beam are welded together, the second annular limit frame can be rotated as a whole to synchronously drive the connecting beam and the foot channel steels on both sides thereof to flip, which makes it easier to perform welding processing on other positions, and there is no need to disassemble and reinstall the channel steel and the connecting beam as a whole from the device, so it is more convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of channel steel welding, and more particularly to a die for welding transformer foot channel steel. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. Transformers can be divided into power transformers and special transformers according to their uses. Power transformers are mainly used in power transmission and distribution lines to change the AC voltage to meet the needs of different users. Special transformers are used in special fields such as smelting, electrical processing, electric traction, communications, and automatic control. Its main components are primary coils, secondary coils, and iron cores (magnetic cores). The main functions of transformers are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. Transformers are basic equipment for power transmission and distribution, and are widely used in industry, agriculture, transportation, urban communities, and other fields.

[0003] Channel steel is a long steel strip with a groove-shaped cross section. It is a carbon structural steel for construction and machinery. It is a steel section with a complex cross section. Its cross section shape is a groove shape. As the foot supporting the transformer, the stability and balance of its support are very important. At present, when welding the foot channel steel, manual adjustment and naked eye observation are mostly required to judge whether the two feet are balanced and aligned. It is very easy to make errors, which leads to low quality of the welded foot and is not convenient for actual use. Therefore, the present invention proposes a mold for welding transformer foot channel steel to solve the above problem. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a mold for welding transformer foot channel steel. After the foot channel steel and the connecting beam are welded together, the second annular limit frame can be rotated as a whole to synchronously drive the connecting beam and the foot channel steels on both sides thereof to flip, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mold for welding transformer foot channel steel, comprising a support type flip mechanism, the support type flip mechanism comprising a limit column support seat, a first annular limit frame is fixedly installed on the top of the limit column support seat, an annular slide groove is opened on the inner wall of the first annular limit frame, a second annular limit frame is arranged inside the first annular limit frame, and a limit type balance frame is fixedly installed at the horizontal center line position of the second annular limit frame;

[0006] A first limiting mechanism is fixedly connected inside the supporting flipping mechanism, a displacement reminding mechanism is fixedly installed on the top of the first limiting mechanism, and second limiting mechanisms are fixedly installed on both sides of the first limiting mechanism;

[0007] The first limiting mechanism includes a first positioning plate fixedly connected to the limiting type balancing frame, a connecting type sliding rod slidably connected to the annular sliding groove is fixedly installed on one side of the first positioning plate, two balancing limiting rods are fixedly installed inside the first positioning plate, and the outer walls of the two balancing limiting rods are rotatably installed with connecting type supporting frames, and a third positioning plate is fixedly installed on one side of the connecting type supporting frame.

[0008] In a preferred embodiment, an N-shaped support frame is installed in a vertical sliding state inside the limiting balance frame, a wear-resistant pad is fixedly installed on the outer wall of the N-shaped support frame, and a first threaded adjustment rod engaged with a second annular limiting frame is rotatably installed on the top of the N-shaped support frame.

[0009] In a preferred embodiment, the two balancing limit rods are arranged relative to each other and in parallel, a second positioning plate is fixedly installed at the vertical center line position of the two balancing limit rods, and the connecting support brackets arranged on the outer walls of the two balancing limit rods are symmetrically arranged about the vertical center line of the first positioning plate under normal conditions.

[0010] In a preferred embodiment, the inner thread of the third positioning plate is connected to a second threaded adjustment rod, and a vacuum suction cup is fixedly mounted on the bottom of the second threaded adjustment rod.

[0011] In a preferred embodiment, the second limiting mechanism includes a fourth positioning plate fixedly connected to one side of the third positioning plate, and limiting support plates are fixedly installed on both sides of the fourth positioning plate, and a supporting rotating rod is rotatably installed on the top of the limiting support plate, and a third threaded adjustment rod is fixedly connected to the bottom of the supporting rotating rod, and a first limiting pressure plate is rotatably installed on the outer wall of the supporting rotating rod, and a second limiting pressure plate is meshed on the outer wall of the third threaded adjustment rod.

[0012] In a preferred embodiment, the tops of the two supporting rotating rods arranged on both sides of the fourth positioning plate are fixedly connected to gear plates, and the outer walls of the two gear plates are meshed with synchronous belts.

[0013] In a preferred embodiment, two first supporting ribs are hinged on one side of the first limiting pressure plate, and one side of the two first supporting ribs is rotatably connected to a second supporting rib hinged to the second limiting pressure plate.

[0014] In a preferred embodiment, the two first support ribs and the two second support ribs provided on one side of each of the first limiting pressure plate and the second limiting pressure plate are symmetrically arranged with respect to the vertical center line of the limiting support plate.

[0015] In a preferred embodiment, the displacement reminder mechanism includes a pressure rod fixedly installed inside a connecting type support bracket, a support seat is fixedly installed on the top of the first positioning plate, a plurality of arc-shaped connecting tubes are fixedly installed inside the support seat, the bottoms of the plurality of arc-shaped connecting tubes are all connected to a first airbag, and the tops of the plurality of arc-shaped connecting tubes are all connected to a second airbag.

[0016] In a preferred embodiment, the pressure rod, the arc-shaped connecting tube and the first airbag are all arranged on the same annular trajectory, and the center of the balance limit rod is the same as the center of the trajectory surrounded by the pressure rod, the arc-shaped connecting tube and the first airbag.

[0017] Technical effects and advantages of the present invention:

[0018] 1. The present invention provides a first positioning plate fixedly connected to the limiting balance frame, and a connecting type sliding rod slidably connected to the annular sliding groove is fixedly installed on one side of the first positioning plate, so that the second positioning plate and the third positioning plate are synchronously pressed against the top of the connecting beam between the two foot channel steels. After the foot channel steel and the connecting beam are welded together, when other dead angle positions need to be welded and fixed, the second annular limiting frame as a whole can limit the connecting beam through the second positioning plate and the third positioning plate, and synchronously drive the connecting beam and the foot channel steels on both sides to flip, which makes it easier to weld other positions, without having to disassemble and reinstall the channel steel and the connecting beam as a whole from the device, and is more convenient to use.

[0019] 2. The present invention can make the third threaded adjustment rod rotate synchronously by rotating the supporting rotating rod, and then make the second limit pressure plate move up and down on its outer wall. Then, when used for limiting the position of channel steels of different specifications, the first limit pressure plate is placed on the top of the channel steel, and then the height of the second limit pressure plate is adjusted until it is fitted on the bottom of the channel steel, so that the channel steel can be limited and clamped, making the device more applicable, and there is no need to replace different molds for different channel steels, which is more convenient to use;

[0020] 3. In the present invention, when one of the two base channel steels is offset, the connecting support bracket to which the offset base is fixedly connected synchronously drives the pressure rod to be offset, thereby exerting pressure on the first airbag, and then allowing the internal gas of the first airbag to enter the inner cavity of the second airbag and expand it, so that it can be visually observed that the base on this side has offset and needs to be adjusted, thereby avoiding the problem of inability to observe with the naked eye and then discovering the imbalance of the two bases after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2It is a schematic diagram of the bottom structure of the present invention.

[0023] Figure 3 It is a partial structural sectional view of the supporting flipping mechanism, the first limiting mechanism and the displacement reminding mechanism of the present invention.

[0024] Figure 4 For the present invention Figure 3 A-section structure enlarged view.

[0025] Figure 5 It is a partial structural schematic diagram of the first limiting mechanism and the displacement reminding mechanism of the present invention.

[0026] Figure 6 For the present invention Figure 5 Enlarged view of the structure of part B.

[0027] Figure 7 It is a partial structural schematic diagram of the support type turning mechanism of the present invention.

[0028] Figure 8 For the present invention Figure 7 Enlarged view of the C structure.

[0029] Fig. 9 It is a schematic diagram of the partial structure of the second limiting mechanism of the present invention.

[0030] Fig.10 For the present invention Fig. 9 Enlarged view of the D structure.

[0031] The accompanying drawings are marked as follows: 1 supporting type flip mechanism, 101 limiting column supporting seat, 102 first annular limiting frame, 103 annular slide groove, 104 second annular limiting frame, 105 limiting type balancing frame, 106 N-shaped support frame, 107 wear-resistant pad, 108 first threaded adjustment rod, 2 first limiting mechanism, 21 first positioning plate, 22 connecting type slide rod, 23 balancing limiting rod, 24 connecting type supporting bracket, 25 second positioning plate, 26 third positioning Plate, 27 second threaded adjustment rod, 28 vacuum suction cup, 3 displacement reminder mechanism, 31 pressure rod, 32 support seat, 33 arc connection tube, 34 first air bag, 35 second air bag, 4 second limiting mechanism, 41 fourth positioning plate, 42 limiting support plate, 43 supporting rotating rod, 44 third threaded adjustment rod, 45 first limiting pressure plate, 46 second limiting pressure plate, 47 first supporting rib, 48 second supporting rib, 49 gear plate, 410 synchronous belt. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Refer to the instruction manual Figure 1-10 , a die for welding transformer foot channel steel according to an embodiment of the present invention, such as Figure 1 As shown, it includes a supporting type flipping mechanism 1, combined with Figure 7-8 As shown, the support type flip mechanism 1 includes a limit column support seat 101, a first annular limit frame 102 is fixedly installed on the top of the limit column support seat 101, an annular slide groove 103 is opened on the inner wall of the first annular limit frame 102, a second annular limit frame 104 is arranged inside the first annular limit frame 102, and a limit type balance frame 105 is fixedly installed at the horizontal center line position of the second annular limit frame 104;

[0034] like Figure 1 As shown, a first limiting mechanism 2 is fixedly connected inside the supporting flipping mechanism 1, a displacement reminding mechanism 3 is fixedly installed on the top of the first limiting mechanism 2, and second limiting mechanisms 4 are fixedly installed on both sides of the first limiting mechanism 2;

[0035] Combination Figure 5-6 As shown, the first limiting mechanism 2 includes a first positioning plate 21 fixedly connected to the limiting balance frame 105, a connecting slide bar 22 slidably connected to the annular slide groove 103 is fixedly installed on one side of the first positioning plate 21, two balancing limiting rods 23 are fixedly installed inside the first positioning plate 21, and the outer walls of the two balancing limiting rods 23 are rotatably installed with connecting support brackets 24, and the connecting support brackets 24 can only deflect around the outer walls of the balancing limiting rods 23 toward the direction close to the displacement reminding mechanism 3, and a third positioning plate 26 is fixedly installed on one side of the connecting support bracket 24. In actual use, the second positioning plate 25 and the third positioning plate 26 The top of the connecting beam between the two base channel steels is synchronously pressed, and the connecting beam is placed between the second annular limiting frame 104 and the second positioning plate 25. The purpose of this arrangement is that after the base channel steel and the connecting beam are welded together, when other dead angles need to be welded and fixed, the second annular limiting frame 104 can be rotated as a whole to limit the connecting beam through the second positioning plate 25 and the third positioning plate 26, and synchronously drive the connecting beam and the base channel steels on both sides to flip over, which makes it easier to weld other positions without having to disassemble and reinstall the channel steel and the connecting beam as a whole from the device, making it more convenient to use.

[0036] Further, see Figure 4 and Figure 8 As shown, an n-shaped support frame 106 is installed in a vertical sliding state inside the limiting balance frame 105, and a wear-resistant pad 107 is fixedly installed on the outer wall of the n-shaped support frame 106, and a first threaded adjustment rod 108 engaged with the second annular limiting frame 104 is rotatably installed on the top of the n-shaped support frame 106. When the first threaded adjustment rod 108 is rotated to move up and down inside the second annular limiting frame 104, the n-shaped support frame 106 and the wear-resistant pad 107 can be synchronously driven to move up and down. When the n-shaped support frame 106 and the wear-resistant pad 107 move downward synchronously until they are limited on both sides of the connecting beam, the connecting beam can be auxiliary limited again, wherein the two balance limit rods 23 are arranged in a relative and parallel state, and the vertical center line position of the two balance limit rods 23 is The second positioning plate 25 is fixedly installed on both sides, and the connecting support brackets 24 arranged on the outer walls of the two balancing limit rods 23 are symmetrically arranged about the vertical center line of the first positioning plate 21 under normal conditions. The purpose of this arrangement is to ensure that the two balancing limit rods 23 drive the corresponding connecting support brackets 24 to always remain on the same horizontal plane under normal conditions. When one of the connecting support brackets 24 is displaced synchronously with the channel steel, since the balancing limit rod 23 and the second positioning plate 25 are fixed in position, the two connecting support brackets 24 can be prevented from synchronously driving the two channel steel feet to deviate synchronously. Then, in actual use, it is easier to intuitively observe whether the two feet are kept on the same horizontal plane. At the same time, in order to maintain stability in the process of the connecting beam driving the channel steel to flip and change sides, refer to Figure 4-5 As shown, the internal thread of the third positioning plate 26 is connected to the second threaded adjustment rod 27, and a vacuum suction cup 28 is fixedly installed at the bottom of the second threaded adjustment rod 27. In actual use, by adjusting the length of the second threaded adjustment rod 27 downward, the vacuum suction cup 28 is adsorbed and limited at the top of the connecting beam, and the two sides of the connecting beam can be balanced and limited simultaneously, thereby making the connecting beam more stable during operation.

[0037] As a further extension of this solution, combined with Figure 9-10As shown, the second limiting mechanism 4 includes a fourth positioning plate 41 fixedly connected to one side of the third positioning plate 26, and the side of the fourth positioning plate 41 away from the third positioning plate 26 is placed in contact with one side of the channel steel foot welded to the connecting beam, and both sides of the fourth positioning plate 41 are fixedly installed with limiting support plates 42, and the top of the limiting support plate 42 is rotatably installed with a supporting rotating rod 43, and the bottom of the supporting rotating rod 43 is fixedly connected with a third threaded adjusting rod 44, and the outer wall of the supporting rotating rod 43 is rotatably installed with a first limiting pressure plate 45, and the outer wall of the third threaded adjusting rod 44 is meshed with a second limiting pressure plate 46. In actual use When in use, the third threaded adjustment rod 44 can be rotated synchronously by rotating the supporting rotating rod 43, and then the second limiting pressure plate 46 can be moved up and down on its outer wall. Then, when it is used for limiting the position of channel steels of different specifications, the first limiting pressure plate 45 is placed on the top of the channel steel, and then the height of the second limiting pressure plate 46 is adjusted until it fits on the bottom of the channel steel, so that the channel steel can be limited and clamped. Synchronously, a second limiting mechanism 4 is provided on one side of the connecting support bracket 24 on both sides of the two balancing limiting rods 23, so that the two base channel steels can be limited synchronously.

[0038] Furthermore, the tops of the two supporting rotating rods 43 arranged on both sides of the fourth positioning plate 41 are fixedly connected with gear plates 49, and the outer walls of the two gear plates 49 are meshed with synchronous belts 410. A stepping motor is provided inside a limiting support plate 42 for driving the supporting rotating rod 43 to rotate. The purpose of such a setting is that when the supporting rotating rods 43 arranged on both sides of the same fourth positioning plate 41 are synchronously adjusted, the two supporting rotating rods 43 can drive the third threaded adjustment rod 44 to rotate synchronously through the setting of the gear plates 49 and the synchronous belts 410, and then the two second limiting pressure plates 46 can be displaced synchronously, so as to balance and stably limit and fix a base channel steel on one side of the connecting beam, wherein one side of the first limiting pressure plate 45 is hinged with two first supporting ribs 47, and one side of the two first supporting ribs 47 is rotatably connected with a second supporting rib 48 hinged with the second limiting pressure plate 46. The change in the distance between the pressure plate 45 and the second limiting pressure plate 46 can synchronously change the angle between the first support rib 47 and the second support rib 48, and then synchronously limit the first limiting pressure plate 45 and the second limiting pressure plate 46 to avoid the first limiting pressure plate 45 and the second limiting pressure plate 46 from loosening after clamping the channel steel, thereby causing displacement between the two base channel steels, thereby affecting the actual welding quality. At the same time, the two first supporting ribs 47 and the two second supporting ribs 48 set on one side of each first limiting pressure plate 45 and the second limiting pressure plate 46 are symmetrically arranged about the vertical center line of the limiting support plate 42. The purpose of such arrangement is that when the second limiting pressure plate 46 moves on the outer wall of the third threaded adjustment rod 44, the symmetrical second supporting ribs 48 and the first supporting rib 47 can limit the first limiting pressure plate 45 and the second limiting pressure plate 46 to be evenly stressed, thereby making the channel steel clamped more stable.

[0039] In the specific implementation, first, the connecting beam welded and fixed with the two foot channel steels is placed between the second positioning plate 25 and the second annular limiting frame 104, and then the two channel steel feet are respectively placed on both sides of the connecting beam, and the tops of the two channel steels are respectively fitted with the bottoms of the first limiting pressure plate 45, and then the third threaded adjustment rod 44 is rotated and adjusted to make the second limiting pressure plate 46 move up and fit against the bottom of the channel steel, so that the two foot channel steels can be symmetrically placed on both sides of the connecting beam, and then the first threaded adjustment rod 108 is rotated to drive the N-shaped support frame 106 and the wear-resistant pad 107 to move downward as a whole until they are fitted and limited on the connecting beam. The position of the connecting beam is limited and fixed on both sides to keep it relatively stable with the channel steel base to avoid shaking during processing and welding. During the welding process, if it is necessary to flip the base channel steel and the connecting beam, when welding the dead angle position, the connecting beam can be driven to rotate synchronously by rotating the second annular limiting frame 104 as a whole. At this time, through the connection between the limiting balance frame 105 and the first positioning plate 21, and the sliding connection between the connecting slide bar 22 and the annular slide groove 103, the first limiting mechanism 2 as a whole can synchronously drive the two base channel steels to flip synchronously, which is very convenient to operate and more convenient to weld and fix the dead angle position in time.

[0040] As a further extension of this solution, combined with Figure 5-6 As shown, the displacement reminder mechanism 3 includes a pressure rod 31 fixedly installed inside the connecting type support bracket 24, a support seat 32 is fixedly installed on the top of the first positioning plate 21, and a plurality of arc-shaped connecting tubes 33 are fixedly installed inside the support seat 32, and the bottoms of the plurality of arc-shaped connecting tubes 33 are connected to a first air bag 34, and the tops of the plurality of arc-shaped connecting tubes 33 are connected to a second air bag 35. In actual use, when one of the two base channel steels is offset, so that the two bases are not aligned, the connecting type support bracket 24 fixedly connected to the offset base will synchronously drive the pressure rod 31 to offset, so as to generate pressure on the first air bag 34, and then the internal gas of the first air bag 34 enters the inner cavity of the second air bag 35 and expands it, so that it can be intuitively seen that the base on this side is offset and needs to be adjusted. Figure 6As shown, the pressure rod 31, the arc-shaped connecting tube 33 and the first air bag 34 are all arranged on the same annular trajectory, and the center of the circle of the balance limit rod 23 is the same as the center of the circle of the trajectory surrounded by the pressure rod 31, the arc-shaped connecting tube 33 and the first air bag 34. When one of the two channel steel feet is displaced, the second limiting mechanism 4 and the third positioning plate 26 are synchronously limited to allow the connecting support bracket 24 to deflect around the outer wall of the balance limit rod 23. The purpose of such a setting is to allow the pressure rod 31 to move along the annular trajectory concentric with the balance limit rod 23 when deflected, and then more intuitively contact the first air bag 34, so that the first air bag 34 can flow gas into the inner cavity of the second air bag 35 through the arc-shaped connecting tube 33, and then the second air bag 35 can expand, so as to avoid the problem of inability to observe with the naked eye and then find the imbalance of the two feet after welding.

[0041] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0042] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0043] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mold for welding transformer foot channel steel, comprising a support type flip mechanism (1), the support type flip mechanism (1) comprising a limit column support seat (101), a first annular limit frame (102) is fixedly installed on the top of the limit column support seat (101), an annular slide groove (103) is provided on the inner wall of the first annular limit frame (102), a second annular limit frame (104) is provided inside the first annular limit frame (102), and a limit type balance frame (105) is fixedly installed at the horizontal center line position of the second annular limit frame (104); Features: The support-type turning mechanism (1) is internally fixedly connected to a first limiting mechanism (2), a displacement reminder mechanism (3) is fixedly installed on the top of the first limiting mechanism (2), and second limiting mechanisms (4) are fixedly installed on both sides of the first limiting mechanism (2); The first limiting mechanism (2) comprises a first positioning plate (21) fixedly connected to the limiting balance frame (105); a connecting slide rod (22) slidably connected to the annular slide groove (103) is fixedly installed on one side of the first positioning plate (21); two balancing limiting rods (23) are fixedly installed inside the first positioning plate (21); connecting support frames (24) are rotatably installed on the outer walls of the two balancing limiting rods (23); and a third positioning plate (26) is fixedly installed on one side of the connecting support frame (24); An N-shaped support frame (106) is installed in a vertical sliding state inside the limit-type balance frame (105), a wear-resistant pad (107) is fixedly installed on the outer wall of the N-shaped support frame (106), and a first threaded adjustment rod (108) meshing with the second annular limit frame (104) is rotatably installed on the top of the N-shaped support frame (106); the two balance limit rods (23) are arranged in a relative and parallel state, and the second positioning plate (25) is fixedly installed at the vertical center line position of the two balance limit rods (23), and the connecting type support frame (24) provided on the outer wall of the two balance limit rods (23) is symmetrically arranged about the vertical center line of the first positioning plate (21) in a normal state; The inner thread of the third positioning plate (26) is connected to a second threaded adjustment rod (27), and a vacuum suction cup (28) is fixedly mounted on the bottom of the second threaded adjustment rod (27); The second limiting mechanism (4) comprises a fourth positioning plate (41) fixedly connected to one side of the third positioning plate (26), limiting support plates (42) fixedly installed on both sides of the fourth positioning plate (41), a supporting rotating rod (43) rotatably installed on the top of the limiting support plate (42), a third threaded adjustment rod (44) fixedly connected to the bottom of the supporting rotating rod (43), a first limiting pressure plate (45) rotatably installed on the outer wall of the supporting rotating rod (43), and a second limiting pressure plate (46) meshing with the outer wall of the third threaded adjustment rod (44); The tops of the two supporting rotating rods (43) disposed on both sides of the fourth positioning plate (41) are fixedly connected to gear plates (49), and the outer walls of the two gear plates (49) are meshed with synchronous belts (410); Two first support ribs (47) are hingedly connected to one side of the first limiting pressure plate (45), and one side of the two first support ribs (47) is rotatably connected to a second support rib (48) hingedly connected to the second limiting pressure plate (46).

2. A die for welding transformer foot channel steel according to claim 1, characterized in that: The two first supporting ribs (47) and the two second supporting ribs (48) provided on one side of each first limiting pressure plate (45) and the second limiting pressure plate (46) are symmetrically arranged with respect to the vertical center line of the limiting support plate (42).

3. A die for welding transformer foot channel steel according to claim 1, characterized in that: The displacement reminder mechanism (3) comprises a pressure rod (31) fixedly mounted inside the connecting support frame (24); a support seat (32) is fixedly mounted on the top of the first positioning plate (21); a plurality of arc-shaped connecting tubes (33) are fixedly mounted inside the support seat (32); the bottoms of the plurality of arc-shaped connecting tubes (33) are all connected to a first air bag (34); and the tops of the plurality of arc-shaped connecting tubes (33) are all connected to a second air bag (35).

4. A die for welding transformer foot channel steel according to claim 3, characterized in that: The pressure rod (31), the arc-shaped connecting tube (33) and the first airbag (34) are all arranged on the same annular trajectory, and the center of the balance limit rod (23) and the center of the trajectory surrounded by the pressure rod (31), the arc-shaped connecting tube (33) and the first airbag (34) are the same point.

Images