CN212145114U - Welding tool for side plate of ring main unit - Google Patents

Abstract

The utility model discloses a welding tool for the side plate of a ring network cabinet. The welding tool for the side plate of the ring network cabinet is used for welding a bracket and a rib plate on the side plate. A side plate positioning mechanism, a bracket quick-clamp assembly for defining the position of the bracket on the side plate and pressing the bracket on the side plate, and a bracket quick-clamp assembly for defining the position of the rib plate on the side plate and pressing the rib plate On the rib plate quick-clamping mechanism on the side plate, at least one support plate for supporting the side plate is fixed on the base. The utility model can well locate the positions of the side plate, the bracket and the rib plate, press the bracket and the rib plate on the side plate respectively, and can complete the welding installation of the bracket and the rib plate on the side plate by using a set of tooling , which not only improves the welding accuracy, but also saves the tooling.

Description

Ring main unit side panel welding tool

technical field

The utility model relates to a welding tool for a side panel of a ring main unit, which belongs to the field of welding and manufacturing of an air box of a ring main unit in the electric power industry.

Background technique

In the power system, ring network switchgear is widely used, and the stainless steel air box is the main component in the ring network cabinet. In order to improve the welding fixture and improve the welding efficiency of the air box, various manufacturers have spared no effort. The traditional welding tooling for air box side plates, ribs and brackets mainly has the following problems: (1) The brackets and the ribs are on different sides of the side plates, and two sets of tooling are required;

(2) The positioning of the rib plate and the bracket is relatively extensive, which cannot meet the accuracy requirements of the subsequent assembly and welding of this air box; (3) The positioning and clamping of the rib plate are operated separately, which affects the efficiency.

SUMMARY OF THE INVENTION

The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a welding tool for the side plate of the ring main unit, which can well locate the positions of the side plate, the bracket and the rib plate, and separate the bracket and the rib plate respectively. Pressed on the side plate, a set of tooling can be used to complete the welding of the bracket and the rib plate on the side plate, which not only improves the welding accuracy, but also saves the tooling.

In order to solve the above-mentioned technical problems, the technical scheme of the present utility model is: a welding tool for the side plate of the ring main unit, which is used for welding the bracket and the rib plate on the side plate, which comprises:

a base, on which at least one support plate for supporting the side plate is fixed;

A side plate positioning mechanism used to limit the position of the side plate on the support plate;

A bracket quick-clamp assembly for limiting the position of the bracket on the side plate and pressing the bracket on the side plate;

The rib plate quick-clamping mechanism used to limit the position of the rib plate on the side plate and press the rib plate on the side plate.

A specific structure of a side plate positioning mechanism is further provided, the side plate positioning mechanism includes two positioning assemblies, each positioning assembly acts on a pair of opposite sides of the side plate, and the positioning assemblies include:

a block group, the block group includes at least one block fixed on the base, the block is used for abutting with one edge of a pair of opposite sides of the side plate;

A cylinder group, the cylinder group includes at least one cylinder with a cylinder block fixed on the base, the cylinder is used to push the other side of the pair of opposite sides of the side plate to make it meet the block when its cylinder rod is extended Co-clamps the side plates and releases the side plates when their cylinder rods are retracted.

It further provides a specific structure of a bracket quick clamp assembly and a rib plate quick clamp mechanism, and the bracket quick clamp assembly includes:

The positioning plate, the free end of which is provided with a U-shaped opening for clamping the bracket;

a first rotation driving mechanism connected with the positioning plate and used for driving the positioning plate to rotate to a horizontal state;

a first pressing piece connected to the positioning plate and used for pressing the bracket mounted on the positioning plate to the side plate when the positioning plate is rotated to a horizontal state;

The rib plate quick-clamping mechanism includes two rib-plate quick-clamp assemblies arranged oppositely, and the rib-plate quick-clamp assemblies include:

The free end of the horizontal pressing rod is provided with a positioning pin for being embedded in the positioning hole of the rib plate to limit the position of the rib plate;

a second rotational driving mechanism connected to the horizontal pressing rod and used for driving the horizontal pressing rod to rotate to a horizontal state;

A second pressing piece connected to the horizontal pressing rod and used for pressing the rib against the side plate when the horizontal pressing rod is rotated to a horizontal state.

Further provided are the specific structures of a first rotational drive mechanism and a second rotational drive mechanism, the first rotational drive mechanism and the second rotational drive mechanism both include:

The elbow clamp whose base is fixed on the base, the positioning piece is connected with the clamping jaw of the elbow clamp to rotate with the clamping jaw, the positioning plate and the horizontal pressing rod are collectively referred to as the positioning piece;

A fixed seat fixed on the base and used to support the positioning member when the positioning member is rotated to a horizontal state.

Further, in order to facilitate the connection between the positioning member and the clamping jaw, a connection method between the positioning member and the clamping jaw is provided. The positioning member is slidably fitted on the clamping jaw. A locking mechanism for locking the position of the positioning member when in place.

Further, in order to constrain the extension length and rotation range of the positioning member, the positioning member is equipped with a horizontal pin, and the fixed seat is provided with an arc-shaped groove that matches the rotation trajectory of the pin. During the rotation of the positioning member , the pin slides in the arc-shaped groove, and when the pin slides to the bottom of the arc-shaped groove, the positioning member is in a horizontal state.

Further provided are the specific structures of a first pressing piece and a second pressing piece, wherein the first pressing piece and the second pressing piece both comprise bolts threaded on the positioning piece, and the bolts are The lower end protrudes from the positioning piece, so that the protruding length of the lower end of the bolt can be adjusted by rotating the bolt to adjust the pressing force; wherein, the positioning plate and the horizontal pressing rod are collectively referred to as the positioning piece.

Further, in order to prevent the first pressing member from pressing against the bracket, when the positioning plate is in a horizontal state, a gap is left between the lower surface of the portion of the positioning plate provided with the U-shaped opening and the upper surface of the side plate.

The utility model also provides a method for using the welding tool for the side panel of the ring main unit, which is characterized in that:

The method steps include:

Step S1: place the side plate on the support plate, and the side plate positioning mechanism limits the side plate to fix the position of the side plate;

Step S2: the bracket quick-clamp assembly defines the position of the bracket on the side plate, presses the bracket on the side plate, and then welds the bracket on the side plate;

Step S3: turning the side plate welded on the bracket so that the surface of the side plate welded with the bracket faces downward, and the side plate positioning mechanism limits the side plate again to fix the position of the side plate;

Step S4: The rib plate quick clamping mechanism defines the position of the rib plate on the side plate, presses the rib plate on the side plate, and then welds the rib plate on the side plate.

Further, in step S2, the bracket quick-clamp assembly defines the position of the bracket on the side plate, and the method steps of pressing the bracket on the side plate include:

First, close the bracket to be welded against the U-shaped opening; then act the elbow clamp of the bracket quick-clamp assembly to make the positioning plate rotate to a horizontal state; finally, use the first pressing member to press the bracket on the side plate;

And/or in step S3, the rib plate quick clamping mechanism defines the position of the rib plate on the side plate, and the method steps of pressing the rib plate on the side plate include:

Put the rib plate on the side plate first; then move the elbow clamp of a rib plate quick-clamp assembly, so that the positioning pin of the horizontal pressure rod of the rib plate quick-clamp assembly is embedded in a positioning hole of the rib plate; then move another rib plate The elbow of the plate quick-clamp assembly is adjusted and the rib plate is adjusted so that the positioning pin of the horizontal pressure rod of the rib plate quick-clamp assembly is embedded in another positioning hole of the rib plate; The second pressing member presses the rib against the side plate.

After the above technical solution is adopted, the side plate positioning mechanism is used to define the position of the side plate, and then the bracket quick-clamp assembly is used to define the position of the bracket on the side plate, and the bracket is pressed, so as to facilitate the welding of the bracket on the side plate, and then The side plate is turned over, and the position of the rib plate is limited by the rib plate quick clamping mechanism, and the rib plate is pressed, so as to facilitate the welding of the rib plate on the side plate. The brackets on the positive and negative sides of the side plate are welded with the rib plate, which reduces the investment of a set of tooling and has high welding precision; the bracket quick-clamp assembly of the present utility model is provided with action and power by the elbow clamp, and the bracket is limited by the positioning plate on the side plate. Then, the bracket is pressed against the side plate by the first pressing member, which realizes the rapid positioning and clamping of the bracket, improves the clamping accuracy and efficiency, and also improves the welding accuracy of the bracket; the utility model The rib plate quick-clamp assembly is provided with action and power by the elbow clamp, and the position of the rib plate on the side plate is defined by the cooperation of the positioning pin on the horizontal pressing rod and the positioning hole on the rib plate, and then the second pressing member The rib plate is pressed against the side plate, and two rib plate quick-clamp components are used to realize the rapid positioning and clamping of the rib plate, which improves the clamping efficiency and the welding accuracy of the rib plate.

Description of drawings

Figure 1 is a schematic structural diagram of the side plate after welding the bracket and the rib plate;

Fig. 2 is the structural schematic diagram of the utility model after welding the side plate of the ring main unit to locate the side plate and the bracket;

Figure 3 is a schematic structural diagram of the utility model after the side plate of the ring main unit is welded to position the side plate and the rib plate;

Fig. 4 is the front view of the bracket quick-clamp assembly of the side plate welding tool of the ring main unit of the present invention;

Fig. 5 is the top view of the bracket quick-clamp assembly of the side plate welding tool of the ring main unit of the present invention;

6 is a front view of the rib plate quick-clamp assembly of the side plate welding tool of the ring main unit of the present invention;

7 is a top view of the rib plate quick-clamp assembly of the side plate welding tool of the ring main unit of the present invention.

Detailed ways

In order to make the content of the present utility model easier to understand clearly, the present utility model will be described in further detail below according to specific embodiments and in conjunction with the accompanying drawings.

Example 1

As shown in Figures 1 to 7, a ring main unit side plate welding tool is used for welding the bracket 20 and the rib plate 30 on the side plate 10, which includes:

a base 1, on which at least one support plate 2 for supporting the side plate 10 is fixed;

A side plate positioning mechanism for limiting the position of the side plate 10 on the support plate 2;

The bracket quick-clamp assembly 5 for defining the position of the bracket 20 on the side plate 10 and pressing the bracket 20 on the side plate 10;

The rib plate quick-clamping mechanism for defining the position of the rib plate 30 on the side plate 10 and pressing the rib plate 30 on the side plate 10 .

In this embodiment, the side plate welding tool of the ring main unit is used for welding the bracket 20 on one surface of the side plate 10 and welding the rib plate 30 on the other surface. Two rib plates 30 are welded, and two rib plate quick clamping mechanisms are provided, but not limited to this. Three of the support plates 2 are arranged side by side.

Specifically, the side plate positioning mechanism is used to define the position of the side plate 10 , and then the bracket quick-clamp assembly 5 is used to define the position of the bracket 20 on the side plate 10 , and the bracket 20 is pressed, so as to facilitate the completion of the bracket 20 on the side plate 10 . After welding, the side plate 10 is turned over, and the position of the rib plate 30 is limited by the rib plate quick clamping mechanism, and the rib plate 30 is pressed, so as to facilitate the welding of the rib plate 30 on the side plate 10. The ring network cabinet of the present invention The side plate welding tool can weld the brackets 20 and the rib plates 30 distributed on the front and back sides of the side plate 10 , which reduces the investment of a set of tooling and has high welding precision.

As shown in Figures 2 and 3, the side plate positioning mechanism includes two positioning assemblies, each of which acts on a pair of opposite sides of the side plate 10, and the positioning assemblies include:

A block group, the block group includes at least one block 3 fixed on the base 1, the block 3 is used for abutting with one of the pair of opposite sides of the side plate 10;

The cylinder group includes at least one cylinder 4 whose cylinder body is fixed on the base 1, and the cylinder 4 is used to push the other side of the pair of opposite sides of the side plate 10 when its cylinder rod is extended to make the cylinder block 10. Together with the stop 3, it clamps the side plate 10 and releases the side plate 10 when its cylinder rod is retracted.

As shown in Figures 4 and 5, the bracket quick-clamp assembly 5 includes:

The positioning plate 51, its free end is provided with a U-shaped opening for clamping the bracket 20;

a first rotation driving mechanism connected to the positioning plate 51 and used to drive the positioning plate 51 to rotate to a horizontal state;

a first pressing member 52 connected to the positioning plate 51 and used for pressing the bracket 20 clamped on the positioning plate 51 to the side plate 10 when the positioning plate 51 is rotated to a horizontal state;

In this embodiment, the bracket 20 is L-shaped, the vertical plate of the bracket 20 is in contact with the wall of the U-shaped opening, and the first pressing member 52 is used for pressing the horizontal plate of the bracket 20 against the side plate 10 . superior.

As shown in Figures 6 and 7, the rib plate quick-clamping mechanism includes two oppositely arranged rib plate quick-clamp assemblies 6, and the rib plate quick-clamp assembly 6 includes:

The free end of the horizontal pressing rod 61 is provided with a positioning pin 62 for being embedded in the positioning hole of the rib plate 30 to define the position of the rib plate 30;

a second rotational driving mechanism connected to the horizontal pressing rod 61 and used to drive the horizontal pressing rod 61 to rotate to a horizontal state;

The second pressing member 63 is connected to the horizontal pressing rod 61 and is used for pressing the rib 30 against the side plate 10 when the horizontal pressing rod 61 is rotated to a horizontal state.

In this embodiment, two ends of each rib plate 30 are respectively provided with a positioning hole, and each positioning pin 62 corresponds to a positioning hole. At the position on the side plate 19 , the second pressing member 63 is used to press the rib plate 30 on the side plate 10 .

As shown in Figures 4, 5, 6, and 7, the first rotational drive mechanism and/or the second rotational drive mechanism include:

Its base 712 is fixed on the elbow clamp 71 on the base 1, and the positioning member is connected with the clamping jaw 711 of the elbow clamp 71 to rotate with the clamping jaw 711, and the positioning plate 51 and the horizontal pressing rod 61 are collectively referred to as the positioning member;

The fixed seat 72 is fixed on the base 1 and used to support the positioning member when the positioning member is rotated to a horizontal state.

The elbow clamp 71 is in the prior art, and its structure will not be described in detail.

Specifically, the bracket quick-clamp assembly 5 of the present invention is actuated and powered by the elbow clip 71 , the position of the bracket 20 on the side plate 10 is limited by the positioning plate 51 , and then the bracket 20 is compressed by the first pressing member 52 On the side plate 10 , the fast positioning and clamping of the bracket 20 is realized, the clamping accuracy and efficiency are improved, and the welding accuracy of the bracket 20 is also improved.

The rib plate quick-clamp assembly 6 of the present invention is actuated and powered by the toggle clamp 71 , and the position of the rib plate 30 on the side plate 10 is limited by the cooperation of the positioning pin 62 on the horizontal pressing rod 61 and the positioning hole on the rib plate 30 . position, and then press the rib plate 30 on the side plate 10 through the second pressing member 63, and use the two rib plate quick-clamp assemblies 6 to realize the rapid positioning and clamping of the rib plate 30, which improves the clamping efficiency and also improves the clamping efficiency. The welding accuracy of the rib plate 30 is improved.

As shown in FIGS. 4 , 5 , 6 and 7 , in order to facilitate the connection between the positioning member and the clamping jaw 711 , the positioning member is slidably fitted on the clamping jaw 711 . A locking mechanism for locking the position of the positioning member when matched in place.

In this embodiment, the clamping jaw 711 is provided with a groove, the positioning member is slidably fitted in the groove, and the locking mechanism includes at least one locking bolt 8 threadedly connected to the positioning member. When the position of the positioning member is locked, the locking bolt 8 is screwed in, so that the head of the locking bolt 8 abuts the bottom of the slot, and the movement of the positioning member relative to the clamping jaw 711 can be restricted.

In this embodiment, a horizontal pin 73 is mounted on the positioning member, and an arc-shaped groove 74 is arranged on the fixing base 72 to match the rotation track of the pin 73. During the rotation of the positioning member, the pin 73 Sliding in the arc groove 74, when the pin 73 slides to the bottom of the arc groove 74, the positioning member is in a horizontal state, and then the horizontal positioning member is supported by the fixing seat 72. 73 and the arc groove 74 cooperate to constrain the protruding length of the positioning member. Only when the positioning member extends a specific length, the pin 73 can slide in the arc groove 74, thereby ensuring that the rib plate quick-clamp assembly 6 and The positioning accuracy of the bracket quick-clamp assembly 5.

As shown in Figures 4, 5, 6, and 7, the first pressing member 52 and/or the second pressing member 63 include bolts threaded on the positioning member, and the lower ends of the bolts protrude from the positioning member so as to pass through the positioning member. Rotate the bolt to adjust the protruding length of the lower end of the bolt to adjust the pressing force; wherein, the positioning plate 51 and the horizontal pressing rod 61 are collectively referred to as positioning pieces.

In this embodiment, in order to facilitate the rotation of the bolt, a nut is fixed on the upper end of the bolt.

As shown in FIG. 4 , in order to prevent the first pressing member 52 from vacantly pressing the bracket 20 , when the positioning plate 51 is in a horizontal state, the lower surface of the portion of the positioning plate 51 provided with the U-shaped opening and the upper surface of the side plate 10 A gap is left between the surfaces.

In this embodiment, the height of the gap is 0.5-1.5 mm.

Embodiment 2

A method for using a welding tool for a side panel of a ring main unit as described in Embodiment 1, the method steps include:

Step S1: place the side plate 10 on the support plate 2, and the side plate positioning mechanism limits the side plate 10 to fix the position of the side plate 10;

Step S2: the bracket quick-clamp assembly 5 defines the position of the bracket 20 on the side plate 10, presses the bracket 20 on the side plate 10, and then welds the bracket 20 on the side plate 10;

Step S3: turning the side plate 10 welded on the bracket 20 so that the surface of the side plate 10 with the bracket 20 welded faces downward, and the side plate positioning mechanism limits the side plate 10 again to fix the position of the side plate 10;

Step S4 : the rib plate quick clamping mechanism defines the position of the rib plate 30 on the side plate 10 , presses the rib plate 30 on the side plate 10 , and then welds the rib plate 30 on the side plate 10 .

Specifically, in step S2, the bracket quick-clamp assembly 5 defines the position of the bracket 20 on the side plate 10, and the method steps of pressing the bracket 20 on the side plate 10 include:

First, close the bracket 20 to be welded against the U-shaped opening; then actuate the elbow clamp 71 of the bracket quick-clamp assembly 5 to rotate the positioning plate 51 to a horizontal state; finally, use the first pressing member 52 to press the bracket 20 against the side plate 10 superior;

And/or in step S3, the rib plate quick clamping mechanism defines the position of the rib plate 30 on the side plate 10, and the method steps of pressing the rib plate 30 on the side plate 10 include:

First put the rib plate 30 on the side plate 10; then actuate the toggle clamp 71 of a rib plate quick-clamp assembly 6, so that the positioning pin 62 of the horizontal pressure rod 61 of the rib plate quick-clamp assembly 6 is virtually embedded in one of the rib plate 30. In the positioning hole; then actuate the elbow clamp 71 of the other rib plate quick-clamp assembly 6 and adjust the rib plate 30 so that the positioning pin 62 of the horizontal pressure rod 61 of the rib plate quick-clamp assembly 6 is virtually embedded in another position of the rib plate 30 In the hole; finally, the two second pressing members 63 of the two rib plate quick-clamp assemblies 6 are used to press the rib plate 30 on the side plate 10 .

The specific embodiments described above further describe in detail the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention, and are not intended to be used for To limit the present utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

In the description of the present invention, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that The device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that is usually placed when the utility model product is used, only for the convenience of describing the present utility model and simplifying the description, not Indicates or implies that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhanging" etc. do not imply that a component is required to be absolutely horizontal or overhang, but rather may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the present invention, unless otherwise expressly specified and limited, the first feature above or below the second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact Rather, they are contacted by additional features between them. Also, the first feature being above, above and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is below, below and below the second feature includes the first feature is directly below and diagonally below the second feature, or simply means that the first feature level is smaller than the second feature.

Claims (8)

1. A ring main unit side panel welding tool for welding a bracket (20) and a rib panel (30) on the side panel (10), characterized in that, it includes: a base (1), on which at least one supporting plate (2) for supporting the side plate (10) is fixed; a side plate positioning mechanism for limiting the position of the side plate (10) on the support plate (2); A bracket quick-clamp assembly (5) for defining the position of the bracket (20) on the side plate (10) and pressing the bracket (20) on the side plate (10); A rib plate quick-clamping mechanism for defining the position of the rib plate (30) on the side plate (10) and pressing the rib plate (30) on the side plate (10). 2. ring main unit side plate welding tooling according to claim 1, is characterized in that, The side plate positioning mechanism includes two positioning assemblies, each of which acts on a pair of opposite sides of the side plate (10), and the positioning assemblies include: A block group, the block group comprising at least one block (3) fixed on the base (1), the block (3) being used for one side of the pair of opposite sides of the side plate (10) abut; A cylinder group, the cylinder group comprises at least one cylinder (4) whose cylinder body is fixed on the base (1), the cylinder (4) is used to push the pair of pairs of side plates (10) when the cylinder rods thereof are extended the other of the sides so that it cooperates with the stopper (3) to clamp the side plate (10) and release the side plate (10) when its cylinder rod is retracted. 3. ring main unit side plate welding tooling according to claim 1, is characterized in that, The bracket quick-clamp assembly (5) includes: the positioning plate (51), the free end of which is provided with a U-shaped opening for clamping the bracket (20); a first rotational driving mechanism connected to the positioning plate (51) and used for driving the positioning plate (51) to rotate to a horizontal state; Connected to the positioning plate (51) and used for pressing the bracket (20) clamped on the positioning plate (51) to the side plate (10) when the positioning plate (51) is rotated to a horizontal state a pressing piece (52); And/or the rib plate quick-clamping mechanism includes two rib-plate quick-clamp assemblies (6) arranged opposite to each other, and the rib-plate quick-clamp assembly (6) includes: a horizontal pressing rod (61), the free end of which is provided with a positioning pin (62) for being embedded in the positioning hole of the rib plate (30) to define the position of the rib plate (30); a second rotational driving mechanism connected to the horizontal pressing rod (61) and used for driving the horizontal pressing rod (61) to rotate to a horizontal state; A second pressing member (63) connected to the horizontal pressing rod (61) and used for pressing the rib plate (30) on the side plate (10) when the horizontal pressing rod (61) is rotated to a horizontal state. 4. ring main unit side plate welding tooling according to claim 3, is characterized in that, The first rotational drive mechanism and/or the second rotational drive mechanism include: The base (712) is fixed on the elbow clamp (71) on the base (1), the positioning member is connected with the clamping claw (711) of the elbow clamp (71) to rotate with the clamping claw (711), the positioning plate (51) and The horizontal pressing rod (61) is collectively referred to as the positioning member; The fixing base (72) is fixed on the base (1) and used to support the positioning member when the positioning member is rotated to a horizontal state. 5. The ring main unit side plate welding tooling according to claim 4, is characterized in that, The positioning member is slidably fitted on the clamping claw (711), and a locking mechanism for locking the position of the positioning member is provided between the positioning member and the clamping claw (711) when the positioning member is slidably fitted to a proper position. 6. The ring main unit side plate welding tooling according to claim 5, is characterized in that, A horizontal pin (73) is assembled on the positioning member, and an arc-shaped groove (74) matched with the rotation track of the pin (73) is arranged on the fixing seat (72). During the rotation of the positioning member, The pin (73) slides in the arc-shaped groove (74), and when the pin (73) slides to the bottom of the arc-shaped groove (74), the positioning member is in a horizontal state. 7. The ring main unit side plate welding tool according to claim 3, characterized in that, The first pressing member (52) and/or the second pressing member (63) comprise bolts threaded on the positioning member, the lower ends of the bolts protrude from the positioning members, so that the lower ends of the bolts can be adjusted by rotating the bolts. Extend the length to adjust the pressing force; wherein, the positioning plate (51) and the horizontal pressing rod (61) are collectively referred to as positioning pieces. 8. The ring main unit side panel welding tool according to claim 3, wherein When the positioning plate (51) is in a horizontal state, a gap is left between the lower surface of the portion of the positioning plate (51) provided with the U-shaped opening and the upper surface of the side plate (10).

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