A tooling for transformer forming

Abstract

This utility model belongs to the field of transformer manufacturing equipment, and proposes a tooling for transformer forming, including an I-beam. The I-beam is horizontally arranged with a cross-span opening in the middle of its bottom. Insert plates are located on both sides of the cross-span opening and are mounted on a ground steel plate. The ground steel plate has multiple pairs of insertion interfaces arranged in a rectangular array. A channel steel assembly is arranged above the I-beam. The channel steel assembly includes a downward-facing support channel steel. Positioning angle plate assemblies are located on both sides of the support channel steel, and these positioning angle plate assemblies cooperate with horizontal slots located on both sides of the I-beam. An inclined channel steel is provided at the end of the support channel steel that is offset from the I-beam, and a foot pedal channel steel is provided at the top of the inclined channel steel. This utility model has a reasonable design, good support stability, helps avoid unnecessary damage to the workshop floor and oil tank surface, and has a high utilization rate, making it suitable for large-scale promotion.

Description

Technical Field

[0001] This utility model belongs to the field of transformer production equipment, and relates to a tooling for transformer forming, and more particularly to a support tooling for forming oil tanks of oil-immersed transformers. Background Technology

[0002] An oil-immersed transformer is a power transformer that uses oil as its primary insulation and cooling medium. Its main structural components include an iron core, windings, oil tank, oil conservator, radiator, gas relay, insulating bushings, and explosion-proof pipes. The oil tank is manufactured by first separating the sections and then welding them together.

[0003] Traditionally, oil tank welding is done manually. However, automated welding technology is now being widely adopted, such as using welding robots and welding trolleys during the tank assembly process. For ordinary transformers, due to their small size, they can be clamped onto extendable and rotatable fixtures after assembly to assist in installation, such as the internal support fixture for transformer oil tank welding disclosed in Chinese Utility Model Patent Publication No. CN207479896U. For large-capacity transformers, due to their larger size, they are generally placed on platforms or the ground, combined with forklifts and overhead cranes to assist robotic welding, with welding operations on workshop floors being particularly common. Welding large-capacity transformers requires placing channel steel on the ground to facilitate forklift and lifting operations. If the channel steel faces upwards, it may cause damage to the transformer surface, requiring subsequent welding repairs, which affects production efficiency and product quality. Conversely, if the channel steel faces downwards, it may scratch the workshop floor, leading to noticeable surface defects over time. Furthermore, simply placing the channel steel as a support fixture results in an arbitrary support span and potential misalignment, affecting support stability. Additionally, for welding large-capacity transformers, workers need to use additional supports for weld quality inspection and lifting equipment installation, which is inconvenient for operations. Utility Model Content

[0004] This utility model addresses the technical problems existing in the welding and forming process of large-capacity transformer tanks by proposing a tooling for transformer forming that is reasonably designed, has good support stability, helps avoid unnecessary damage to the workshop floor and tank surface, and has a high utilization rate.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a tooling for transformer forming, including an I-beam. The I-beam is horizontally arranged with a cross-span opening in the middle of its bottom. Insert plates are located on both sides of the cross-span opening. The insert plates are mounted on a ground steel plate. Multiple pairs of insertion interfaces arranged in a rectangular array are provided on the ground steel plate. A channel steel assembly is provided above the I-beam. The channel steel assembly includes a downward-facing support channel steel. Positioning angle plate assemblies are provided on both sides of the support channel steel. The positioning angle plate assemblies cooperate with horizontal slots located on both sides of the I-beam. An inclined channel steel is provided at one end of the support channel steel that is offset from the I-beam. A foot pedal channel steel is provided at the top of the inclined channel steel.

[0006] Preferably, the foot pedal channel steel has a triangular opening in the middle, which is welded and fixed to the two sides of the apex of the inclined channel steel, and the length direction of the foot pedal channel steel is consistent with the length direction of the supporting channel steel.

[0007] Preferably, the top of the foot pedal channel steel is provided with a plurality of anti-slip holes distributed along its length, and the anti-slip holes are elongated.

[0008] Preferably, the bottom of the foot pedal channel steel is provided with a pair of lifting lugs.

[0009] Preferably, the positioning corner plate assembly includes a lower corner plate with its corner opening facing upward and one side of it welded to the supporting channel steel. An upper corner plate is provided between the lower corner plate and the outer wall of the I-beam, with its corner opening facing downward and one side of it spot-welded to the lower corner plate.

[0010] Preferably, a pair of handle assemblies are provided on one side of the I-beam. The handle assembly includes a square tube welded to the I-beam. The top and bottom surfaces of the square tube are flush with the top surface of the I-beam and the top surface of the cross span, respectively. A round tube is provided on the side of the square tube, and a horizontal bolt is provided in the round tube. The length of the bolt is greater than the length of the round tube.

[0011] Preferably, the bolt is provided with a support tube, and the support tube is provided with an installation port that rotates with the bolt.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model provides a tooling for transformer forming. The ground steel plate can be tightly attached to the workshop floor and, due to its weight, will not shift easily. The ground steel plate provides a positioning foundation for the I-beams, allowing for easy insertion and fixing at different positions according to the required support span. The back of the supporting channel steel assembly directly contacts the transformer tank, avoiding damage to the tank. The inclined channel steel and footrest channel steel can serve as a trestle, facilitating workers' access to the transformer. This utility model has a reasonable design, good support stability, helps avoid unnecessary damage to the workshop floor and tank surface, and has a high utilization rate, making it suitable for large-scale promotion. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A perspective view of a tooling for transformer forming provided in an embodiment; Figure 2 A front view of a tooling for transformer forming provided in an embodiment; Figure 3 A perspective view of a tooling (groundless steel plate) for transformer forming provided for an embodiment; Figure 4 An exploded view of a tooling (groundless steel plate) for transformer forming provided in an embodiment; Figure 5 A side view of a tooling (groundless steel plate) for transformer forming provided for an embodiment; In the above figures: 1. I-beam; 11. Cross span; 12. Insert plate; 13. Horizontal slot; 2. Ground steel plate; 21. Insertion interface; 3. Channel steel assembly; 31. Support channel steel; 32. Inclined channel steel; 33. Foot pedal channel steel; 34. Triangular opening; 35. Anti-slip hole; 36. Lifting lug; 4. Positioning corner plate assembly; 41. Lower corner plate; 42. Upper corner plate; 5. Handle rod assembly; 51. Square tube; 52. Round tube; 53. Bolt; 54. Support tube; 55. Mounting port. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Examples, such as Figures 1-5 As shown, the present invention provides a tooling for transformer forming, including an I-beam 1, which is horizontally arranged with a cross opening 11 in the middle of its bottom. The cross opening 11 has two insert plates 12 on both sides, which are set on a ground steel plate 2. The ground steel plate 2 has multiple pairs of insert interfaces 21 arranged in a rectangular array. A channel steel assembly 3 is set above the I-beam 1. The channel steel assembly 3 includes a support channel steel 31 with the slot facing downward. Positioning angle plate assemblies 4 are set on both sides of the support channel steel 31. The positioning angle plate assemblies 4 cooperate with the horizontal slots 13 set on both sides of the I-beam 1. An inclined channel steel 32 is set at the end of the support channel steel 31 that is away from the I-beam 1. A foot pedal channel steel 33 is set on the top of the inclined channel steel 32.

[0018] Specifically, the ground steel plate 2, made of 2.0-3.5cm thick steel plate, can be tightly attached to the workshop floor and is heavy enough not to shift easily. The ground steel plate 2 provides a positioning foundation for the I-beam 1, making it easy to select different positions to insert and fix the I-beam 1 according to the support span requirements. The cross span 11 of the I-beam 1 directly abuts against the top surface of the ground steel plate 2, and the bottom of the I-beam 1, i.e., the insertion plate 12, does not protrude from the bottom surface of the ground steel plate 2. Therefore, under the protection of the ground steel plate 2, deep scratches will not appear on the workshop floor. The back of the supporting channel steel 31 of the channel steel assembly 3 is used to directly contact the transformer oil tank, avoiding damage to the transformer oil tank. The inclined channel steel 32 and the footrest channel steel 33 can extend a certain distance and height to the side of the transformer. The elevated height of the footrest channel steel 33 allows it to be used as a trestle, making it convenient for workers to climb above the transformer to observe and inspect the weld quality. This utility model has a reasonable design, good support stability, and helps to avoid unnecessary damage to the workshop floor and oil tank surface. Furthermore, the floor steel plate 2, I-beam 1 and channel steel assembly 3 are commonly used steel materials in the workshop. The materials are relatively easy to obtain and the processing difficulty is not high, making it easy to manufacture. It has good comprehensive utilization rate and applicability.

[0019] Furthermore, the foot pedal channel steel 33 provided by this utility model has a triangular opening 34 in the middle, which is welded and fixed to the two sides of the apex of the inclined channel steel 32. The length direction of the foot pedal channel steel 33 is consistent with the length direction of the support channel steel 31, and the end of the support channel steel 31 is provided with an inclined opening for welding the bottom corner of the inclined channel steel 32. In this way, the support channel steel 31, the inclined channel steel 32 and the foot pedal channel steel 33 are welded into a channel steel assembly 3, which has high structural strength and strong resistance to deformation. The foot pedal channel steel 33 and the inclined channel steel 32 have a T-shaped structure, and the extension at both ends can provide workers with sufficient footing margin. The overall force of the channel steel assembly 3 is stably pressed under the transformer oil tank, which facilitates workers to safely complete the operation of going up and down the transformer oil tank.

[0020] To improve the safety of workers going up and down transformer tanks, the footrest channel steel 33 provided by this utility model is provided with multiple anti-slip holes 35 distributed along its length on the top. The anti-slip holes 35 are elongated, which can improve the safety of workers climbing to inspect and observe welds, and especially prevent slipping and causing safety accidents when going down to transformer tanks.

[0021] To facilitate the transfer of the foot pedal channel steel 33, this utility model provides a pair of lifting lugs 36 at the bottom of the foot pedal channel steel 33. The lifting lugs 36 are provided with lifting holes for workers or cranes to lift the lifting lugs 36, thereby realizing the transfer of the channel steel assembly 3.

[0022] In order to improve the fit quality between the channel steel assembly 3 and the I-beam 1, the positioning corner plate assembly 4 provided by this utility model includes a lower corner plate 41, the corner opening of the lower corner plate 41 faces upward and one side of it is welded to the supporting channel steel 31, and an upper corner plate 42 is provided between the lower corner plate 41 and the outer side wall of the I-beam 1, the corner opening of the upper corner plate 42 faces downward and one side of it is spot welded to the lower corner plate 41. The upper corner plate 42 and the lower corner plate 41 are both L-shaped corner steel plates, which can be made from the processing surplus of the transformer tank. The bottom plate of the lower corner plate 41 is used to insert into the horizontal slot 13 of the I-beam 1 to prevent the channel steel assembly 3 from flipping up and down. The other side of the lower corner plate 41 extends out with a certain width allowance, which is used to weld the upper corner plate 42. The upper corner plate 42 clamps the I-beam 1 and the entire channel steel assembly 3 through its side, and provides a certain width support for the transformer tank through its top surface, which helps to improve the fit quality between the channel steel assembly 3 and the I-beam 1 and the stability of the channel steel assembly 3.

[0023] To facilitate adjustment of the insertion position of the I-beam 1 on the ground steel plate 2, the present invention provides a pair of handle assemblies 5 on one side of the I-beam 1. The handle assembly 5 includes a square tube 51 welded to the I-beam 1. The top and bottom surfaces of the square tube 51 are flush with the top surface of the I-beam 1 and the top surface of the cross-section 11, respectively. A round tube 52 is provided on the side of the square tube 51, and a horizontal bolt 53 is provided in the round tube 52. The length of the bolt 53 is greater than the length of the round tube 52. The square tube 51 can be supported on the surface of the ground steel plate 2, and its top will not affect the support effect of the device on the transformer tank. The round tube 52 provides a horizontal adjustment range for the bolt 53 and helps to reduce the shear force at the root of the bolt 53. The part of the bolt 53 that extends beyond the round tube 52 can be used as a handle. By holding the bolt 53, the I-beam 1 can be flipped up from the insertion position on the ground steel plate 2, thereby releasing the positioning relationship between the I-beam 1 and the ground steel plate 2. It should be noted that the bolts 53 are located in opposite directions of the two I-beams 1, while the opposite direction of the two I-beams 1 provides reasonable operating space for the forklift.

[0024] Furthermore, the bolt 53 provided by this utility model is provided with a support tube 54, and the support tube 54 is provided with a mounting port 55 that rotates with the bolt 53. The mounting port 55 is biased towards one end of the support tube 54. By flipping the other end of the support tube 54 to the upward direction, it can be used to support the reinforcing iron and channel-shaped components of the transformer tank, avoiding significant deformation at the weld position where it is only spot welded and not fully welded. Therefore, it is beneficial to improve the final actual quality of the product to a certain extent.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A tooling for transformer forming, comprising an I-beam, characterized in that, The I-beam is horizontally positioned with a cross opening in the middle of its bottom. Insert plates are located on both sides of the cross opening and are mounted on a ground steel plate. The ground steel plate has multiple pairs of insertion interfaces arranged in a rectangular array. A channel steel assembly is positioned above the I-beam. The channel steel assembly includes a downward-facing support channel steel. Positioning angle plate assemblies are located on both sides of the support channel steel and engage with horizontal slots on both sides of the I-beam. An inclined channel steel is located at the end of the support channel steel that is offset from the I-beam, and a footrest channel steel is located at the top of the inclined channel steel.

2. The tooling for transformer forming according to claim 1, characterized in that, A triangular opening is provided in the middle of the foot pedal channel steel, and the triangular opening is welded and fixed to the two sides of the top corner of the inclined channel steel. The length direction of the foot pedal channel steel is consistent with the length direction of the support channel steel.

3. The tooling for transformer forming according to claim 2, characterized in that, The top of the foot pedal channel steel is provided with a plurality of anti-slip holes distributed along its length, and the anti-slip holes are elongated.

4. The tooling for transformer forming according to claim 3, characterized in that, The bottom of the foot pedal channel steel is equipped with a pair of lifting lugs.

5. A tooling for transformer forming according to claim 1 or 4, characterized in that, The positioning corner plate assembly includes a lower corner plate with its corner opening facing upward and one side of it welded to the supporting channel steel. An upper corner plate is provided between the lower corner plate and the outer wall of the I-beam, with its corner opening facing downward and one side of it spot-welded to the lower corner plate.

6. The tooling for transformer forming according to claim 1, characterized in that, A pair of handle assemblies are provided on one side of the I-beam. The handle assembly includes a square tube welded to the I-beam. The top and bottom surfaces of the square tube are flush with the top surface of the I-beam and the top surface of the cross span, respectively. A round tube is provided on the side of the square tube. A horizontal bolt is provided in the round tube. The length of the bolt is greater than the length of the round tube.

7. The tooling for transformer forming according to claim 6, characterized in that, The bolt is provided with a support tube, and the support tube is provided with an installation port that is rotatably fitted to the bolt.

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