Glue pouring tool for transformer

Abstract

The utility model relates to the technical field of transformers, and provides a transformer glue pouring tool, the transformer comprises a front flange mounting position and a rear flange mounting position, the front flange mounting position and the rear flange mounting position are oppositely arranged, a rear flange is fixed on the rear flange mounting position, the front flange mounting position and the rear flange mounting position are oppositely arranged, and the rear flange is fixed on the rear flange mounting position. The tool comprises a cover plate, a bottom plate and a fixed-distance support, the cover plate is fixed to a front flange installation position of the transformer, and a glue pouring opening is formed in the cover plate and used for pouring glue into the transformer; one end of the distance support is fixed on the cover plate, and the other end is fixed on the rear flange. According to the glue filling tool for the transformer, the fixed-distance support is arranged, and the cover plate and the rear flange of the transformer are relatively fixed through the fixed-distance support, so that the distance between the front flange and the rear flange can correspond to the mounting position on a welding clamp after the cover plate is subsequently dismounted and the front flange is mounted, and the situation that the mounting difficulty of the transformer is increased due to the production precision error is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer glue filling tool. Background Art

[0002] A welding tongs transformer is a device used for arc welding, which is used to convert the voltage of the input power supply into a voltage suitable for welding. A welding tongs transformer usually includes a main transformer and some auxiliary circuits for regulating current and stabilizing the welding arc. The main function of a welding tongs transformer is to convert the input high-voltage power supply into a low voltage suitable for welding, while providing sufficient current to maintain the arc required during the welding process. This type of equipment is commonly used in handheld arc welding tools such as welding tongs. A welding tongs transformer has a housing, a primary coil, a secondary coil and multiple interfaces. During the production process, it is necessary to inject glue into the transformer housing through glue filling to achieve insulation protection between lines.

[0003] The control transformer fixing tooling structure with the authorization announcement number CN206574595U fixes and installs the electrode studs by setting tooling plates to ensure that the installed electrode studs are accurately positioned so that the electrode studs will not deviate during or after installation.

[0004] For welding clamp transformers, it is necessary to install a front flange and a rear flange on the transformer so that the transformer can be fixed in the welding clamp through the two flanges. The relative positions of the two flanges cannot be fixed in the above scheme. In the actual assembly process, due to production accuracy and other issues, the distance between the two flanges is difficult to correspond to the installation position on the welding clamp, which makes the installation of the transformer more difficult. Utility Model Content

[0005] In view of this, the utility model proposes a transformer glue filling tooling, which provides a distance bracket and uses the distance bracket to relatively fix the cover plate and the rear flange of the transformer, so that after the cover plate is subsequently removed and the front flange is installed, the distance between the front and rear flanges can correspond to the installation position on the welding clamp, so as to avoid the production precision error increasing the difficulty of transformer installation.

[0006] The technical solution of the utility model is implemented as follows: the utility model provides a transformer glue filling tool, the transformer includes a front flange mounting position and a rear flange mounting position, the front flange mounting position and the rear flange mounting position are arranged oppositely, and a rear flange is fixed on the rear flange mounting position, the front flange mounting position and the rear flange mounting position are arranged oppositely, the tool includes a cover plate, a bottom plate and a distance bracket, wherein,

[0007] The cover plate is fixed on the front flange mounting position of the transformer, and a glue filling port is provided on the cover plate, and the glue filling port is used to fill glue liquid into the transformer;

[0008] One end of the distance bracket is fixed on the cover plate, and the other end is fixed on the rear flange. The distance bracket is used to determine the relative distance between the cover plate and the rear flange. The distance between the front and rear flanges of the transformer is equal to the relative distance between the cover plate and the rear flange.

[0009] The bottom plate cover is arranged on the rear flange and fixed to the rear flange.

[0010] On the basis of the above technical solution, preferably, the number of the glue filling ports is multiple and evenly distributed.

[0011] On the basis of the above technical solution, preferably, a through opening is opened on the cover plate, and the screw in the transformer passes through the cover plate through the through opening.

[0012] Further preferably, it also includes a single-pass hexagonal stud, which is threadedly connected to the portion of the transformer screw extending out of the through hole and abuts against the cover plate.

[0013] On the basis of the above technical solution, preferably, a boss is provided on the bottom plate, and the boss extends into the transformer.

[0014] On the basis of the above technical solution, preferably, a plurality of pre-installation ports are provided on the bottom plate.

[0015] On the basis of the above technical solution, preferably, the number of the distance brackets is two, and they are respectively arranged on both sides of the rear flange.

[0016] On the basis of the above technical solution, preferably, the distance bracket has three fixing parts, one of which is fixedly connected to the cover plate, and the other two are fixedly connected to the rear flange.

[0017] On the basis of the above technical solution, preferably, a matching groove is provided on the cover plate, and one end of the transformer is inserted into the matching groove.

[0018] On the basis of the above technical solution, preferably, the cover plate and the bottom plate are both fixed to the transformer by bolts.

[0019] The transformer glue filling tool of the utility model has the following beneficial effects compared with the prior art:

[0020] (1) By setting a distance bracket and fixing the cover plate and the rear flange of the transformer relatively, after the cover plate is removed and the front flange is installed, the distance between the front and rear flanges can correspond to the installation position on the welding clamp, so as to avoid the production accuracy error increasing the difficulty of transformer installation;

[0021] (2) Multiple glue filling ports are set. During the glue filling process, most of the glue can be poured in through the middle glue filling port, and then glue is poured to the outside of the transformer coil through the glue filling ports on both sides, so that the glue is poured more evenly and the number of bubbles is reduced;

[0022] (3) Set a number of single-pass hexagonal studs corresponding to the number of transformer screws. Before glue filling, the single-pass hexagonal studs can be assembled with the screws and then installed on the cover together, and the screws can be connected to the rear flange to prevent the screws from extending too long or insufficiently from the front flange after glue filling, which will affect the normal installation operation of the transformer or the stability after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A three-dimensional diagram of the transformer glue filling tooling of the utility model;

[0025] Figure 2 It is a schematic diagram of the implementation of installing the transformer glue filling tooling of the utility model on the transformer;

[0026] Figure 3 The utility model is a three-dimensional diagram of the transformer glue-filling tooling cover plate. DETAILED DESCRIPTION

[0027] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-3 As shown, the transformer glue-filling tooling of the utility model comprises a cover plate 1, a bottom plate 2 and a distance bracket 3.

[0029] The transformers mentioned in this embodiment refer to welding clamp transformers, or transformers with the requirement of installing front and rear flanges. In a specific example, the transformer for glue filling operation includes a casing, a rear flange, a primary coil, a secondary coil, multiple screws and multiple interfaces. Openings are set on both sides of the transformer casing, and one of the opening sides is fixed to the rear flange. It should be noted that the transformer needs to install the front flange after the glue filling is completed, and the front and rear flanges are respectively installed on the front and rear flange mounting positions.

[0030] The cover plate 1 is arranged on the open side of the transformer away from the rear flange and fixed to the transformer, that is, the cover plate 1 is installed on the front flange mounting position of the transformer before glue filling. A glue filling port 11 is opened on the cover plate 1. When the cover plate 1 contacts the open side of the transformer shell, the edge of the transformer shell is closed, and only the glue filling port 11 is left as a connecting port between the transformer and the outside world for glue filling operation. The cover plate 1 is specifically fixed to the secondary coil of the transformer by bolts. The installation position of the bolts is the installation position of the bolts when the front flange is connected to the transformer.

[0031] The bottom plate 2 is covered on the rear flange and fixed to the rear flange. It should be noted that the rear flange is fixed on the transformer casing, and the external dimensions are basically consistent with the transformer casing. After the bottom plate 2 is fixed on the rear flange, the rear flange can be closed, and the other side of the transformer casing can be closed through the rear flange. In this embodiment, the glue-filled side of the transformer is used as the top of the transformer, and the other side is used as the bottom of the transformer. The bottom plate 2 is set to close the bottom of the transformer, so that the injected glue cannot flow out, thereby filling the interior of the transformer.

[0032] One end of the distance bracket 3 is fixed on the cover plate 1, and the other end is fixed to the rear flange, so as to keep a certain distance between the cover plate 1 and the rear flange. The length of the set distance bracket 3 is determined according to the installation position of the transformer on the welding clamp. Before using the distance bracket 3, you can try to install it on the welding clamp to ensure that the distance bracket 3 meets the distance requirements.

[0033] In the specific glue pouring process, the base plate 2 is first installed on the rear flange of the transformer, and then the cover plate 1 and the distance bracket 3 are installed. After the cover plate 1, the base plate 2 and the distance bracket 3 are installed on the transformer, the glue pouring operation can be carried out toward the inside of the transformer through the glue pouring port 11. After the glue pouring is completed, the base plate 2, the distance bracket 3 and the cover plate 1 can be removed in turn, and the front flange of the transformer can be installed at the original cover plate 1 installation position on the transformer.

[0034] In the actual glue filling operation of the technicians, it was found that only using one glue filling port 11 for glue filling operation will cause the glue to flow to the side for a long time, and due to the inconsistent flow uniformity, bubbles are easily generated. Therefore, in this embodiment, multiple glue filling ports 11 are set on the cover plate 1, and the multiple glue filling ports 11 are evenly distributed. It should be noted that the number and shape of the glue filling ports 11 need to be set according to the structure of the secondary coil of the transformer. In this embodiment, the number of glue filling ports 11 set is three, and they are arranged along the width direction of the transformer. The middle glue filling port 11 has the largest area and is arranged in a straight line. The glue filling ports 11 on both sides are smaller than the middle glue filling port 11. During the glue filling operation, most of the glue can be poured in through the middle glue filling port 11, and then glue is poured to the outside of the transformer coil through the glue filling ports 11 on both sides to make the glue filling more uniform and reduce the number of bubbles.

[0035] In order to fix the front flange and the rear flange on the transformer, a plurality of screws are provided so that the two ends of the screws are respectively connected to the front and rear flanges. A through opening 12 is provided on the cover plate 1 according to the position where the transformer screw protrudes from the transformer housing. The screw in the transformer passes through the cover plate 1 through the through opening 12. The through opening 12 is provided for the screw to pass through. After the cover plate 1 is removed, when the front flange is installed, the front flange and the rear flange are fixed by the screws.

[0036] In addition, in order to make the length of each screw rod extending out of the cover plate 1 consistent and ensure that the screw rod will not be overlong or insufficient due to precision reasons when the front flange is installed, a single-way hexagonal stud 4 is provided in a corresponding number to the screw rod. The single-way hexagonal stud 4 is threadedly connected to the part of the transformer screw rod extending out of the through-portion 12 and abuts against the cover plate 1. In a specific glue pouring process, the screw rod needs to be inserted into the open side of the single-way hexagonal stud 4 before glue pouring and completely twisted into the single-way hexagonal stud 4. The screw rod is then inserted into the transformer through the through-portion 12 and twisted into the rear flange until the open side of the single-way hexagonal stud 4 abuts against the cover plate 1 and cannot rotate. At this time, the glue pouring operation is performed. After the glue pouring is completed and the glue solidifies, the single-way hexagonal stud 4 needs to be removed before removing the cover plate 1.

[0037] A junction box of the transformer also needs to be installed in the transformer. In order to reserve installation space during the glue pouring process, a boss 21 is set on the bottom plate 2. The boss 21 extends into the transformer. The boss 21 is set to prevent glue from being poured into the reserved space. When the bottom plate 2 is removed, the reserved space that has not been filled with glue can be obtained, and the junction box can be installed through the reserved space.

[0038] During the actual installation process, it is also necessary to consider the installation positions of the signal distribution interface and the power interface of the transformer. A number of pre-installed ports 22 are provided on the base plate 2 for installing various interfaces of the transformer. During the specific glue pouring process, before the base plate 2 is installed on the transformer, the various interfaces of the transformer are respectively inserted into the pre-installed ports 22 and fixed. Before fixing, the various interfaces have been connected to the internal circuit of the transformer. After installation, the base plate 2 is fixed to the transformer. After the glue pouring operation, the base plate 2 is removed from the transformer, and the various interfaces are left on the transformer. In the present embodiment, three pre-installed ports 22 are provided. In addition to the signal distribution interface and the power interface, a grounding port is also provided.

[0039] As a preferred embodiment, the number of the distance brackets 3 is two, and they are respectively arranged on both sides of the rear flange. The two symmetrical distance brackets 3 can make the distances from both sides of the cover plate 1 to the rear flange the same, avoid inconsistent distances between various points on the cover plate 1 and the rear flange, and improve the consistency of the installation position when assembling the transformer.

[0040] As a preferred embodiment, the distance bracket 3 has three fixing parts, one of which is fixedly connected to the cover plate 1, and the other two are fixedly connected to the rear flange. This arrangement enables at least three points on the distance bracket 3 to connect the rear flange and the cover plate 1 respectively, forming a stable triangular structure, thereby avoiding relative friction between the cover plate 1 and the rear flange, which affects the normal distance effect.

[0041] In this embodiment, since the specifications of the distance bracket 3 are fixed, the cover 1 may not be able to fit the transformer housing at a suitable distance due to errors during production. Therefore, a matching groove 13 is opened on the cover 1, and one end of the transformer is inserted into the matching groove 13. The matching groove 13 can compensate for the difference in accuracy between the cover 1 and the transformer housing, so that after the distance difference, the glue can still be replenished to the side of the cover 1 close to the transformer, and the distance meets the requirements.

[0042] In this embodiment, the cover plate 1 and the base plate 2 are both fixed to the transformer by bolts. Specifically, the cover plate 1 is provided with seven mounting bolts, and the seven bolts are distributed on the outside of the middle glue filling port 11, and are fixed to the components on the secondary coil to fix the cover plate 1 and the transformer, while the base plate 2 is directly fixed to the rear flange by four bolts located at the corners. This arrangement is convenient for installation and removal of tooling components, and will not affect the structure of the transformer itself.

[0043] 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 transformer glue filling tool, characterized by: The transformer comprises a front flange mounting position and a rear flange mounting position, the front flange mounting position and the rear flange mounting position are arranged opposite to each other, and a rear flange is fixed on the rear flange mounting position, the front flange mounting position is used to install the front flange after the glue filling is completed, the tooling comprises a cover plate (1), a bottom plate (2) and a distance bracket (3), wherein: The cover plate (1) is fixed on the front flange mounting position of the transformer, and a glue filling port (11) is provided on the cover plate (1), and the glue filling port (11) is used to fill glue liquid into the transformer; One end of the distance bracket (3) is fixed on the cover plate (1), and the other end is fixed on the rear flange, the distance bracket (3) is used to determine the relative distance between the cover plate (1) and the rear flange, and the distance between the front and rear flanges of the transformer is equal to the relative distance between the cover plate (1) and the rear flange; The bottom plate (2) is covered on the rear flange and fixed to the rear flange.

2. The transformer glue filling tool as claimed in claim 1, characterized in that: The glue filling ports (11) are multiple in number and evenly distributed.

3. The transformer glue filling tool as claimed in claim 1, characterized in that: The cover plate (1) is provided with a through opening (12), and the screw in the transformer passes through the through opening (12) and penetrates the cover plate (1).

4. The transformer glue filling tool as claimed in claim 3, characterized in that: It also comprises a single-pass hexagonal stud (4), which is threadedly connected to the portion of the transformer screw rod extending out of the through opening (12) and abuts against the cover plate (1).

5. The transformer glue filling tool as claimed in claim 1, characterized in that: A boss (21) is provided on the bottom plate (2), and the boss (21) extends into the transformer.

6. The transformer glue filling tool as claimed in claim 1, characterized in that: The bottom plate (2) is provided with a plurality of pre-installation openings (22).

7. The transformer glue filling tool as claimed in claim 1, characterized in that: The number of the distance brackets (3) is two, and they are respectively arranged on both sides of the rear flange.

8. The transformer glue filling tool as claimed in claim 1, characterized in that: The distance bracket (3) has three fixing parts, one of which is fixedly connected to the cover plate (1), and the other two fixing parts are fixedly connected to the rear flange.

9. The transformer glue filling tool as claimed in claim 1, characterized in that: The cover plate (1) is provided with a matching groove (13), and one end of the transformer is inserted into the matching groove (13).

10. The transformer glue filling tool as claimed in claim 1, characterized in that: The cover plate (1) and the bottom plate (2) are both fixed on the transformer by means of bolts.

Images