CN202622266U

CN202622266U - Welding tool

Info

Publication number: CN202622266U
Application number: CN 201220316074
Authority: CN
Inventors: 周飞; 张海玉
Original assignee: CNR Datong Electric Locomotive Co Ltd
Current assignee: CRRC Datong Co ltd
Priority date: 2012-07-02
Filing date: 2012-07-02
Publication date: 2012-12-26
Anticipated expiration: 2022-07-02

Abstract

The utility model provides a welding tool which comprises a base body; the base body comprises two first beam bodies which are arranged in parallel, a fixed beam used for connecting the two first beam bodies, and a second beam body that is in lap joint with one planes of the first beam bodies, wherein the four ends of the each first beam body are respectively provided with a clamp locating mechanism; the fixed beam is provided with a first locating piece; and the first locating piece is provided with a locating surface arranged towards the second beam body. The relative position between a transformer oil tank body and a mounting seat assembly is guaranteed to be constant by the locating surface of the welding tool; due to a clamp locating structure, the relative size of mounting seats during assembly can be guaranteed, and the influence caused by welding deformation can be fully canceled out; and the welding tool improves the accuracy of welded products, lightens the labor intensity and guarantees the safe production.

Description

Welding tooling

Technical field

The utility model relates to welding field, especially, relates to a kind of welding tooling.

Background technology

Referring to Fig. 1, Fig. 6 and Fig. 7; In the welding procedure of prior art; The casing 50 of oil tank of transformer is prone to take place welding deformation when welding with mount pad 70; Can occur organizing right situation some deficiency below having summed up through on-the-spot welding when being welded on terminal board 60 on the casing again: the distortion contraction has taken place in (1) fuel tank casing 50 behind face bonding, can not guarantee tight cooperating with the casing datum level; (2) mount pad 70 welding back deflections are bigger, had influence on the frock welding.And do not have frock to guarantee when causing not enough reason to be the single-piece welding, so that it is bigger to be out of shape amount of contraction, has had influence on follow-up installation welding.But on the whole, BJP welding frock still can meet design requirement basically, and well helps the workman to organize, welding, but makes the management of processing technology procedure when guaranteeing the drawing dimensional requirement.

The utility model content

The utility model purpose is to provide a kind of welding tooling, to solve the technical problem of the distortion that causes in the welding process.

For realizing above-mentioned purpose, the utility model provides a kind of welding tooling, comprises matrix, comprises two first beam bodies that laterally arrange and the built-in beams that are connected two first beam bodies; The second beam body is with a plane overlap joint of the first beam body; Four ends of two first beam bodies are provided with four clamping positioning mechanisms; Built-in beam is provided with first keeper, and first keeper has the locating surface towards the second beam body.

Further, the second beam body is three crossbeams that laterally arrange.

Further, be respectively arranged with the datum level of location casing at grade on three crossbeams.

Further, two second location-plates that are provided with static housing in the outside in three crossbeams.

Further, second location-plate and first location-plate are oppositely arranged.

Further, clamping positioning mechanism is the slide block clamping structure.

Further, the slide block clamping structure is through bearing pin and first beam body location.

Further, four clamping positioning mechanisms are arranged on the same horizontal plane.

Further, first location-plate is the L type, and the horizontal part of first location-plate is connected with built-in beam, and vertically portion is perpendicular to the plane at second beam body place.

Further, second location-plate is the L type, and the horizontal part of second location-plate is connected with the second beam body, and vertically portion is perpendicular to the plane at second beam body place.

The utlity model has following beneficial effect:

The relative position that the locating surface assurance transformer oil box body of welding tooling and mount pad group are right is constant; The clamping and positioning structure guaranteed mount pad group to the time relative size and offset the influence that welding deformation amount causes fully, improve welding product precision, reduce labor intensity, guarantee safe production.

Except top described purpose, feature and advantage, the utility model also has other purpose, feature and advantage.To do further detailed explanation to the utility model with reference to figure below.

Description of drawings

The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:

Fig. 1 is the sketch map after the oil tank of transformer welding in the prior art;

Fig. 2 is the sketch map according to the welding tooling of the utility model;

Fig. 3 is the sketch map that the welding tooling according to the utility model cooperates with casing;

Fig. 4 is the sketch map that the welding tooling according to the utility model cooperates with casing and mount pad;

Fig. 5 is the sketch map that the welding tooling according to the utility model cooperates with casing, mount pad and terminal board;

Fig. 6 is the sketch map of terminal board in the prior art; And

Fig. 7 is the sketch map of mount pad in the prior art.

The specific embodiment

Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.

Referring to Fig. 2, the welding tooling according to the utility model comprises: matrix comprises two first beam bodies 11 and the built-in beam that is connected two first beam bodies 11 12 that laterally arrange; The second beam body 20 is with a plane overlap joint of the first beam body 10; Four ends of two first beam bodies 10 are provided with four clamping positioning mechanisms 30; Built-in beam 12 is provided with first keeper, 41, the first keepers 41 and has the locating surface towards the second beam body 20.。The locating surface of welding tooling guarantees that transformer

oil box body

50 and 70 groups of right relative positions of mount pad are constant; The clamping and positioning structure guaranteed mount pad 70 group to the time relative size and offset the influence that welding deformation amount causes fully, improve welding product precision, reduce labor intensity, guarantee safe production.

Referring to Fig. 2, the second beam body 20 is three crossbeams that laterally arrange.Three crossbeams are provided with the datum level 21 of location casing 50.Two second location-plates 42 that are provided with static housing 50 in the outside in three crossbeams.The crossbeam of both sides is provided with three datum levels 21; Be separately positioned on two limits and centre; On two edges of crossbeam in the middle of being positioned at two datum levels 21 are set; Such three crossbeams are provided with 8 datum levels 21 altogether, and the EDGE CONTACT of datum level 21 and casing 50 guarantees the depth of parallelism of casing 50 on welding tooling.

Referring to Fig. 2 to Fig. 5, clamping positioning mechanism 30 is the slide block clamping structure.The slide block clamping structure is through bearing pin and the first beam body, 10 location.The slide block clamping structure is fixed through screws clamp.

Referring to Fig. 2 to Fig. 5, first location-plate 41 is the L type, and the horizontal part of first location-plate is connected with built-in beam, and vertically portion is perpendicular to the plane at the second beam body, 20 places.Second location-plate 42 is the L type, and the horizontal part of second location-plate is connected with the second beam body 20, and vertically portion is perpendicular to the plane at the second beam body, 20 places.Second location-plate 42 and first location-plate 41 are oppositely arranged; Be used for fixing terminal board 60; The vertical end of first location-plate 41 and second location-plate is parallel to each other; The sidewall, assurance terminal board 60 and the

casing

50 and 70 smooth cooperations of mount pad that are used for positioning end daughter board 60 with respect to the second beam body, the 20 outside sides of centre.

Referring to Fig. 1, Fig. 6 and Fig. 7, there is one probably to understand to the overall structure of oil tank of transformer.The oil tank of transformer critical piece has: casing 50, mount pad 70, terminal board 60 and auxiliary equipment.To this oil tank of transformer; Whole assembling process; One by one on frock clamp, position these many parts in order and clamp exactly; Treat just to form parts after fixing back of spot welding or welding are accomplished, and the part that need on weld jig, assemble is not single, but many.It is right with the group of casing 40 that welding tooling only need be accomplished mount pad 70, terminal board 60, and the casing 50 that will organize accomplishing is fixed on the welding upset tire with welding tooling, makes things convenient for the workman to carry out omnibearing angle and weld.

At first must be with the master unit of oil tank of transformer---casing 50 is placed on a definite datum level---on first datum level 21.In view of the structure and the auxiliary equipment of transformer oil box body, the utility model has three fixed datums, and first datum level 21 is the precondition of other two datum levels for the location casing.The second datum level permissible accuracy requires relatively stricter relatively, cooperates because must guarantee the axle bed of four mount pads 70; The 3rd datum level is a positioning end daughter board 60, guarantees that the height of terminal board 60 reaches dimensional requirement, has avoided the technological problems of manual line and location; All datum levels all must be with respect to welding tooling processing design, and design basis is exactly the level that must guarantee platform.According to the influence of factors such as drawing tolerance control requirement and consideration welding contracted quantity, clamping and positioning structure 30 is designed to the slide block clamping structure simultaneously, has solved the influence of the above-mentioned factor of mentioning.

After having confirmed the welding tooling architecture design of oil tank of transformer, ensuing work is exactly will organize clamping with anchor clamps to together part, and the installation of part on anchor clamps comprises the location and clamp the RUP of two close ties.Simple in structure from positioner designs, the location is reliable, and makes its processing and manufacturing and more the easy angle of assembling consider that the clamping device of welding tooling has adopted two groups of slide blocks to clamp, and locatees the mode of bolt with bearing pin.Adopt such design, can guarantee on the one hand that part occupies in the welding process of assigned position to remain unchanged on locator, can control the welding deformation amount of contraction effectively on the one hand in addition, the assurance size is in the margin of tolerance.In view of principle; Welding tooling is fixed on casing 50 on the frock with clamping device exactly; Locate four mount pads 70 then, measure, confirm after the size conforms size its spot welding is firm, frock and casing 50 lifted on the welding upset tire together after intact and weld.

Referring to Fig. 2 to Fig. 5; Can know by the figure paper size; The location that needs two of strict guarantee to be installed in respectively on the first beam body 11 clamps slider bore apart from being 1570mm, and existing is the controlled dimensions slide block with slider designs, reaches 1568mm, 1570mm and three size values of 1574mm respectively; Taken all factors into consideration the influence of the factors such as control and welding contracted quantity of drawing dimensional tolerance in welding process, can prevent to occur the situation that postwelding can not take off workpiece like this and take place.

To relative datum level of frock definition; On this basis casing 50 is placed; In that to utilize clamping device on the frock that four fuel tank mount pads 70 are organized according to the position that configures right, fully the fuel tank casing 50 and the relative size of mount pad 70 are taken into account fully.Simultaneously with terminal board 60 also organize to, install, saved the trouble of organizing, line at the back.So both accelerated the installation of transformer oil box body 50, avoided again because the error that human factor causes with mount pad 70.

From above description, can find out that the utility model the above embodiments have realized following technique effect:

Adopt welding tooling to organize, weld job, part is located by locator, need not rule, just need not measure and can obtain rigging position accurately, thereby guarantee assembly precision, has accelerated the process that standard is joined operation; Also alleviate simultaneously workman's manual labor, improved assembling, welding efficiency.Adopt the frock group to weldment; When guaranteeing casing 50 with mount pad 70 relative altitudes, the flatness of strict control workpiece is offset the influence that produces because of welding deformation simultaneously; It has not only solved the influence that is produced when organizing mount pad owing to manual work; Simultaneously can also save working strength of workers, the group of accomplishing mount pad fast is right, helps producing in enormous quantities.

The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. a welding tooling is characterized in that, comprising:

Matrix comprises two first beam bodies (11) that laterally arrange and the built-in beam (12) that is connected said two first beam bodies (11);

The second beam body (20) is with a plane overlap joint of the said first beam body (10);

Four ends of said two first beam bodies (10) are provided with four clamping positioning mechanisms (30);

Said built-in beam (12) is provided with first keeper (41), and said first keeper (41) has the locating surface towards the said second beam body (20).

2. welding tooling according to claim 1 is characterized in that, the said second beam body (20) is three crossbeams that laterally arrange.

3. welding tooling according to claim 2 is characterized in that, is respectively arranged with the datum level (21) of location casing (50) at grade on said three crossbeams.

4. welding tooling according to claim 2 is characterized in that, two second location-plates (42) that are provided with static housing (50) in the outside in said three crossbeams.

5. welding tooling according to claim 4 is characterized in that, said second location-plate (42) is oppositely arranged with said first location-plate (41).

6. welding tooling according to claim 1 is characterized in that, said clamping positioning mechanism (30) is the slide block clamping structure.

7. welding tooling according to claim 6 is characterized in that, said slide block clamping structure is through bearing pin and the said first beam body (10) location.

8. welding tooling according to claim 1 is characterized in that, four said clamping positioning mechanisms (30) are arranged on the same horizontal plane.

9. welding tooling according to claim 1 is characterized in that, said first location-plate (41) is the L type, and the horizontal part of said first location-plate is connected with said built-in beam (12), and vertically portion is perpendicular to the plane at the said second beam body (20) place.

10. welding tooling according to claim 4 is characterized in that, said second location-plate (42) is the L type, and the horizontal part of said second location-plate is connected with the said second beam body (20), and vertically portion is perpendicular to the plane at the said second beam body (20) place.