Special welding clamp applied to transformer clamp

Abstract

The utility model discloses a special welding fixture applied to a transformer clamp, which comprises a base, a limit block and a fixed push block are mounted on the base, a tooling space is formed between the limit block and the fixed push block, a plurality of positioning columns are arranged at the bottom of the tooling space, and after the transformer clamp is tooling and positioned, the positioning columns are fixed on the limit block and the fixed push block. A rectangular block pressed by a first pressing piece is installed on the surface of the transformer clamping piece, an L-shaped guiding piece located by one corner of the rectangular block is installed on the surface of the transformer clamping piece, the L-shaped guiding piece abuts against the limiting block, a second pressing piece used for pressing the L-shaped guiding piece is installed on the base, the transformer clamping piece is located through a locating column, and the transformer clamping piece is clamped through the locating column. The L-shaped guiding pieces are positioned through the rectangular blocks and the limiting blocks, finally welding is conducted through the welding mechanical arm, the installation position of each L-shaped guiding piece can be guaranteed, the alignment effect of installation of the two transformer clamping pieces is guaranteed, and meanwhile the welding efficiency and quality are effectively improved.

Description

Technical Field

[0001] The utility model relates to a tooling fixture for manufacturing large transformer accessories, in particular to a special welding fixture applied to transformer clamping parts. Background Art

[0002] Transformer clamping parts are mainly used to fix and support components such as the iron core and windings of a transformer, ensuring that they maintain a relatively stable position during the operation of the transformer, preventing displacement or loosening due to factors such as electromagnetic force and vibration, so as to maintain the normal electrical and mechanical properties of the transformer. Generally, a transformer clamping part is installed on each side of the transformer and fixed by conventional means such as bolts to clamp components such as the iron core and windings of the transformer. However, since the two transformer clamping parts are independent components, it is easy to misalign them during installation. Therefore, several guiding parts are generally welded on the inner side of the transformer clamping part (i.e., the side close to the other transformer clamping part). When the transformer clamping parts are fixed, the two transformer clamping parts will approach each other. The guiding parts can directly abut and contact, or there can be a certain distance, which is much smaller than the distance between the two transformer clamping parts, and can more intuitively observe the positional relationship between the two transformer clamping parts. It can also be a clamping tool to align and clamp the guiding parts of the two transformer clamping parts, which can also achieve the effect of aligning the two transformer clamping parts. Currently, the guiding parts are generally welded manually by workers, which has certain requirements for the skills of the welding workers. At the same time, manual welding will also have errors, resulting in the inability to completely align the guiding parts, and thus the situation where the two transformer clamping parts cannot be aligned. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a special welding fixture applied to transformer clamping parts.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] A special welding fixture applied to transformer clamping parts includes a base. A limiting block and a fixed pushing block for pushing the transformer clamping part towards the limiting block are installed on the base. A tooling space for accommodating the transformer clamping part is formed between the limiting block and the fixed pushing block. A plurality of positioning columns for positioning the transformer clamping part are arranged at the bottom of the tooling space. After the transformer clamping part is tooled and positioned, a rectangular block pressed by a first pressing part is installed on the surface of the transformer clamping part. An "L"-shaped guiding part positioned by a corner of the rectangular block is installed on the surface of the transformer clamping part, and the "L"-shaped guiding part abuts against the limiting block. A second pressing part for pressing the "L"-shaped guiding part is installed on the base.

[0006] A first positioning hole is provided on the transformer clamping piece corresponding to the positioning post, and a second positioning hole is provided on the rectangular block corresponding to the positioning post. When the transformer clamping piece is tooled, the positioning post sequentially passes through the first positioning hole and the second positioning hole.

[0007] The bent part of the "L"-shaped guiding piece abuts against two adjacent sides of one of the corners of the rectangular block.

[0008] The first pressing piece includes a first fixed seat, a first pressing rod that can be fixed is hinged to the first fixed seat, and a first pressing block is installed on the lower side of the end of the first pressing rod.

[0009] The second pressing piece includes a second fixed seat, a second pressing rod that can be fixed is hinged to the second fixed seat, and a second pressing block is installed on the lower side of the end of the second pressing rod.

[0010] A semi-circular groove is provided on the top surface of the limiting block, a third positioning hole is provided on the "L"-shaped guiding piece corresponding to the semi-circular groove, a positioning pin is inserted into the third positioning hole, and the lower side of the positioning pin abuts against the semi-circular groove.

[0011] The beneficial effects of the present utility model are as follows: A limiting block and a fixed pushing block for pushing the transformer clamping piece towards the limiting block are installed on the base of the present utility model. A tooling space for accommodating the transformer clamping piece is formed between the limiting block and the fixed pushing block. A plurality of positioning posts for positioning the transformer clamping piece are provided at the bottom of the tooling space. After the transformer clamping piece is tooled and positioned, a rectangular block pressed by the first pressing piece is installed on the surface of the transformer clamping piece. An "L"-shaped guiding piece positioned by one of the corners of the rectangular block is installed on the surface of the transformer clamping piece, and the "L"-shaped guiding piece abuts against the limiting block. A second pressing piece for pressing the "L"-shaped guiding piece is installed on the base. By positioning the transformer clamping piece through the positioning post, clamping the transformer clamping piece through the fixed pushing block and the limiting block, positioning the "L"-shaped guiding piece through the rectangular block and the limiting block, and finally welding by a welding manipulator, the installation position of each "L"-shaped guiding piece can be ensured, the alignment effect of the installation of two transformer clamping pieces can be guaranteed, and the welding efficiency and quality can be effectively improved. Description of the Drawings

[0012] The present utility model will be further described below with reference to the drawings and embodiments.

[0013] Figure 1 is one of the structural diagrams of the present utility model (the transformer clamping piece has been fixed);

[0014] Figure 2 is the second structural diagram of the present utility model (the transformer clamping piece has not been fixed). Detailed Embodiment

[0015] To make the objectives, technical solutions, and advantages of the present utility model clearer and more explicit, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments may be combined with each other.

[0016] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model.

[0017] The following describes some embodiments of the present utility model provided in conjunction with the accompanying drawings.

[0018] Referring to Figure 1 、 2 , a special welding fixture applied to a transformer clamping piece, comprising a base 1, a limiting block 2 installed on the base 1, and a fixed pushing block 4 that pushes the transformer clamping piece 3 towards the limiting block 2 (the fixed pushing block 4 is a prior art, and its function is to cooperate with the limiting block 2 to clamp the transformer clamping piece 3). A working space for accommodating the transformer clamping piece 3 is formed between the limiting block 2 and the fixed pushing block 4. A plurality of positioning posts 5 for positioning the transformer clamping piece 3 are arranged at the bottom of the working space. After the transformer clamping piece 3 is tooled and positioned, a rectangular block 7 pressed by a first pressing member 6 is installed on the surface of the transformer clamping piece 3. An "L"-shaped guiding member 8 positioned by a corner of the rectangular block 7 is installed on the surface of the transformer clamping piece 3, and the "L"-shaped guiding member 8 abuts against the limiting block 2. A second pressing member 9 for pressing the "L"-shaped guiding member 8 is installed on the base 1. By positioning the transformer clamping piece through the positioning posts, clamping the transformer clamping piece by the fixed pushing block and the limiting block, positioning the "L"-shaped guiding member by the rectangular block and the limiting block, and finally welding by a welding manipulator, the installation position of each "L"-shaped guiding member can be ensured, the alignment effect of the installation of two transformer clamping pieces can be guaranteed, and the welding efficiency and quality can be effectively improved.

[0019] A first positioning hole corresponding to the positioning post 5 is provided on the transformer clamping piece 3, and a second positioning hole corresponding to the positioning post 5 is provided on the rectangular block 7. When the transformer clamping piece 3 is tooled, the positioning post 5 sequentially passes through the first positioning hole and the second positioning hole. By positioning the transformer clamping piece 3 and the rectangular block 7 simultaneously through the positioning post 5, the structure of the welding clamping piece can be optimized.

[0020] The bent portion of the "L"-shaped guiding member 8 abuts against two adjacent sides of a corner of the rectangular block 7. When the "L"-shaped guiding member 8 is completely attached, the positioning of the "L"-shaped guiding member 8 can be completed. The "L"-shaped guiding member 8 abuts against the limiting block 2 to further improve the positioning effect of the "L"-shaped guiding member 8.

[0021] The first pressing member 6 includes a first fixed seat 10, a first pressing rod 11 that is hinged to the first fixed seat 10 and can be fixed, and a first pressing block 12 is installed on the lower side of the end of the first pressing rod 11.

[0022] The second pressing member 9 includes a second fixed seat 13, a second pressing rod 14 that is hinged to the second fixed seat 13 and can be fixed, and a second pressing block 15 is installed on the lower side of the end of the second pressing rod 14.

[0023] When one end of the corresponding pressing rod is toggled upward, the corresponding pressing block descends accordingly, thereby pressing the rectangular block 7 or the "L"-shaped guide member 8. It belongs to a kind of lever structure. The fixing method of the pressing rod can be that there is a groove on the pressing rod, and there is a bump reset by an elastic piece on the fixed seat. When the rectangular block 7 and the "L"-shaped guide member 8 are pressed, the bump is aligned with the groove, and the elastic piece pushes the bump into the groove for fixing to prevent loosening during the welding process. When it is necessary to loosen the rectangular block 7 and the "L"-shaped guide member 8, directly press down the pressing rod, the bump slides along the inner wall of the groove and exits from the groove. Only when pressing the rectangular block 7 and the "L"-shaped guide member 8 is it necessary to limit the movement of the pressing rod, and there are no special requirements for the pressing rod when loosening the rectangular block 7 and the "L"-shaped guide member 8.

[0024] A semi-circular groove 16 is provided on the top surface of the limiting block 2, a third positioning hole 17 corresponding to the semi-circular groove 16 is provided on the "L"-shaped guide member 8, a positioning pin is inserted through the third positioning hole 17, and the lower side of the positioning pin abuts against the semi-circular groove 16 to further improve the positioning effect of the "L"-shaped guide member 8.

[0025] In this product, the positioning of the "L"-shaped guide member 8 includes three methods: one corner of the rectangular block 7, abutting against the limiting block 2, and inserting a positioning pin between the semi-circular groove 16 and the third positioning hole 17. It is possible to choose to use all three at the same time, or to choose the positioning by combining one corner of the rectangular block 7 with abutting against the limiting block 2, or the positioning by combining abutting against the limiting block 2 with inserting a positioning pin between the semi-circular groove 16 and the third positioning hole 17.

[0026] In the present utility model, the term "plurality" refers to two or more, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] It should be noted that when an element is referred to as being "assembled on", "mounted on", "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0028] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A special welding fixture applied to transformer clamping parts, comprising a base (1), characterized in that A limiting block (2) and a fixed pushing block (4) for pushing a transformer clamping piece (3) towards the limiting block (2) are installed on the base (1). A tooling space for accommodating the transformer clamping piece (3) is formed between the limiting block (2) and the fixed pushing block (4). A plurality of positioning columns (5) for positioning the transformer clamping piece (3) are arranged at the bottom of the tooling space. After the transformer clamping piece (3) is tooled and positioned, a rectangular block (7) pressed by a first pressing piece (6) is installed on the surface of the transformer clamping piece (3). An "L"-shaped guiding piece (8) positioned by a corner of the rectangular block (7) is installed on the surface of the transformer clamping piece (3), and the "L"-shaped guiding piece (8) abuts against the limiting block (2). A second pressing piece (9) for pressing the "L"-shaped guiding piece (8) is installed on the base (1).

2. The special welding fixture applied to the transformer clamping piece according to claim 1, wherein A first positioning hole corresponding to the positioning column (5) is arranged on the transformer clamping piece (3). A second positioning hole corresponding to the positioning column (5) is arranged on the rectangular block (7). When the transformer clamping piece (3) is tooled, the positioning column (5) sequentially passes through the first positioning hole and the second positioning hole.

3. The special welding fixture applied to the transformer clamping piece according to claim 1, characterized in that The bent part of the "L"-shaped guiding piece (8) abuts against two adjacent sides in one corner of the rectangular block (7).

4. The special welding fixture applied to the transformer clamping piece according to claim 1, characterized in that The first pressing piece (6) includes a first fixing seat (10). A first pressing rod (11) that can be fixed is hinged to the first fixing seat (10). A first pressing block (12) is installed on the lower side of the end of the first pressing rod (11).

5. The special welding fixture applied to the transformer clamping piece according to claim 1, characterized in that The second pressing piece (9) includes a second fixing seat (13). A second pressing rod (14) that can be fixed is hinged to the second fixing seat (13). A second pressing block (15) is installed on the lower side of the end of the second pressing rod (14).

6. The special welding fixture applied to the transformer clamping piece according to claim 1, characterized in that A semi-circular groove (16) is arranged on the top surface of the limiting block (2). A third positioning hole (17) corresponding to the semi-circular groove (16) is arranged on the "L"-shaped guiding piece (8). A positioning pin is inserted into the third positioning hole (17), and the lower side of the positioning pin abuts against the semi-circular groove (16).

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