CN210677510U

CN210677510U - Clamp for welding T-shaped joint by flux sheet constrained arc welding

Info

Publication number: CN210677510U
Application number: CN201921115846.4U
Authority: CN
Inventors: 王文琰; 乔及森; 王磊; 陈振文; 芮正雷
Original assignee: Lanzhou University of Technology
Current assignee: Lanzhou University of Technology
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-06-05
Anticipated expiration: 2029-07-17

Abstract

The utility model relates to a clamp for welding T-shaped joints by welding flux sheet constrained arc welding, which comprises a base, a core plate placing groove (1), a copper cushion block (2), a pressing part (3) and a ceramic plate (5), wherein the core plate placing groove, the copper cushion block (2) and the pressing part are all arranged on the base, and the ceramic plate is used for being placed on a panel (4) to be welded; the core plate placing groove is vertically formed in the base; the two copper cushion blocks are arranged on the left side and the right side of the top of the core plate placing groove, and the upper surface of the core plate placing groove is used for placing a panel to be welded; the pressing component is used for pressing the ceramic plate downwards after the ceramic plate is placed; the ceramic plate is provided with a through notch for inserting and fixing the soldering flux sheet. The utility model discloses both realized fastening fixedly core, panel and ceramic plate, realized the welding flux piece fast, stable clamp tight fixedly through setting up of notch on the ceramic plate moreover, not only improved weldability, convenience, also guaranteed the quality that welding flux piece restraines arc welding joint. And simultaneously, the utility model discloses still have characteristics such as simple structure, convenient operation, easy dismouting.

Description

Clamp for welding T-shaped joint by flux sheet constrained arc welding

Technical Field

The utility model relates to a welding jig technical field especially relates to a welding flux piece is restrained arc welding and is welded anchor clamps that T type connects.

Background

The metal sandwich plate is a metal hollow sandwich structure formed by combining two horizontal panels and a central core plate into a whole by special means. The metal sandwich plate is a special structural plate with light weight, has the characteristics of high specific strength and high specific rigidity, has wide application prospect in the fields of ships, automobiles, rail transit, heavy machinery and the like, and has better mechanical property than other sandwich structural plates.

In the conventional method, the high-strength steel sandwich plate is mostly manufactured by laser welding, but the width of the connection between the core plate and the T-shaped joint of the panel is insufficient in the laser welding, the T-shaped joint is a basic unit of the metal sandwich plate, and the stress concentration of the welding joint is caused by the gap between the panel and the core plate of the T-shaped joint, so that the overall strength and toughness of the sandwich structure are reduced.

Therefore, a new method for welding the T-shaped joint, namely welding flux sheet constrained arc welding, is provided, the welding method can realize single-side welding three-side forming, solve the problem of poor fusion between a panel and a core plate of the laser welding T-shaped joint, and simultaneously prepare the high-strength steel T-shaped joint with good fusion between the panel and the core plate and sufficient fusion depth and excellent performance. The utility model aims at providing a welding jig for the T-shaped joint welding flux sheet restraining arc welding.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a welding flux piece restriction electric arc welding T type connects anchor clamps is provided, and it has improved the weldability, has guaranteed the quality that welding flux piece restriction electric arc welding connects simultaneously.

In order to solve the above problem, the present invention provides a clamp for welding a T-shaped joint by flux-cored arc welding, comprising: the base is provided with a core plate placing groove, a copper cushion block, a pressing part and a ceramic plate, wherein the core plate placing groove, the copper cushion block and the pressing part are all arranged on the base; the core plate placing groove is vertically formed in the base; the two copper cushion blocks are symmetrically arranged on the left side and the right side of the top of the core plate placing groove, two opposite surfaces of the two copper cushion blocks are flush with the inner wall of the core plate placing groove, and the upper surface of the two copper cushion blocks is used for placing the panel to be welded; a plurality of the pressing members for pressing the ceramic plate downward after the ceramic plate is placed; one side of the ceramic plate, which is close to the welding operation position, is provided with a through strip-shaped notch, and the notch is used for inserting and fixing the welding flux sheet.

Preferably, the bottom of one side of the ceramic plate close to the welding operation is provided with an inclined groove, and the groove opening is formed in the edge of the inclined groove.

Preferably, the jig further comprises a core board height adjusting mechanism provided at the position of the core board placing groove on the base.

Preferably, the core plate height adjusting mechanism is a U-shaped adjusting support block, a U-shaped opening of the U-shaped adjusting support block corresponds to the vertical opening of the core plate placing groove, a bolt with a punched head is arranged on a transverse member at the bottom of the U-shaped opening in a penetrating manner, and the bolt is used for abutting against the bottom of the core plate to be welded after the core plate to be welded is placed in the core plate to adjust the height of the core plate.

Preferably, the base is provided with a front supporting plate and a rear supporting plate, the front supporting plate and the rear supporting plate are respectively provided with a front vertical opening and a rear vertical opening which form the core plate placing groove, and the U-shaped adjusting supporting block is arranged on the opposite inner walls of the two plates.

Preferably, the bolt is a butterfly bolt.

Preferably, the pressing part is a quick clamp.

Compared with the prior art, the utility model has the following advantage:

the utility model discloses anchor clamps had both realized treating the welding core, treated welding panel and ceramic plate step up the fixed action, had realized the tight fixed action of quick, stable clamp to the welding flux piece through setting up of notch on the ceramic plate simultaneously moreover, had not only improved weldability, convenience, had also guaranteed the quality that the welding flux piece was restrainted arc welding and is connected. And simultaneously, the utility model discloses anchor clamps still have characteristics such as simple structure, convenient operation, easy dismouting.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic view of an overall assembly structure of a clamp according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a ceramic plate according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a T-shaped welding operation place provided by the embodiment of the present invention.

Fig. 4 is a schematic view of an assembly structure of the copper pad block on the base according to an embodiment of the present invention.

Fig. 5 is an assembly structure diagram of the U-shaped adjusting support block and the butterfly bolt provided by the embodiment of the present invention.

In the figure: 1-a core plate placing groove, 2-a copper cushion block, 3-a pressing part and 4-a panel to be welded; 5-ceramic plate, 51-notch, 52-oblique groove; 6-welding flux pieces, 7-U-shaped adjusting supporting blocks, 8-core plates to be welded, 9-bolts, 10-supporting plates and 11-connecting plates.

Detailed Description

Referring to fig. 1 to 3, the embodiment of the present invention provides a welding flux sheet restraining arc welding T-joint fixture, which can be applied to the welding of T-joints in high-strength steel sandwich plates and other structures, and the fixture mainly comprises a base, a core plate placing groove 1, a copper cushion block 2 and a pressing part 3, all of which are arranged on the base, and a ceramic plate 5 for placing on a panel 4 to be welded.

The core plate placing groove 1 is vertically formed in the base; two copper cushion blocks 2 are symmetrically arranged on the left side and the right side of the top of the core board placing groove 1, two opposite surfaces are parallel and level with the inner wall of the core board placing groove 1, and the upper surface forms a panel placing position for placing a panel 4 to be welded.

A plurality of pressing members 3 are uniformly arranged beside the panel placing position for pressing the ceramic plate 5 downward after it is placed. During actual manufacturing, the pressing part 3 can adopt a common quick clamp in the prior art, and is opened and pressed by opening and closing, so that the use is convenient and the tightening effect is good.

One side of the ceramic plate 5 near the welding operation is provided with a through elongated notch 51, and the notch 51 is used for inserting and fixing the flux sheet 6.

The assembling and using method of the clamp comprises the following steps: (1) placing the core board 8 to be welded into the core board placing groove 1, placing the two panels 4 to be welded on the copper cushion blocks 2 on the left side and the right side respectively, and enabling the top surface of the core board 8 to be welded to be flush with the upper surfaces of the copper cushion blocks 2 and form a strip-shaped welding bead with the side walls of the two panels 4 to be welded on the left side and the right side; (2) the upper ends of the welding flux sheets 6 are inserted into the notches 51 on the ceramic plate 5 in a whole row, the welding flux sheets 6 can be fixed and fastened, then the ceramic plate 5 is placed above the panel 4 to be welded, and the lower ends of the welding flux sheets 6 are placed into a welding channel to be tightly attached to the side wall of the panel 4 to be welded; (3) and (3) compressing and fixing the ceramic plate 5 by using the compressing component 3, and finally, carrying out T-shaped joint welding by matching with a soldering flux sheet constrained arc process.

In the above assembly process, it will be appreciated that the upper end of the flux piece 6 is fixed in the notch 51 and the lower end is also held against the side wall of the panel 4 to be welded, which means that the portion of the notch 51 on the ceramic plate 5 is positioned well beyond the side wall of the panel 4 to be welded. Therefore, further, in order to reduce the influence of the structure of the notch 51 at the upper end of the fixed soldering flux sheet 6 on the ceramic plate 5 on the welding process, an inclined groove 52 is arranged at the bottom of one side of the ceramic plate 5 close to the welding operation, the thickness of the inclined groove 52 is gradually increased from outside to inside, and the notch 51 is arranged at the edge of the inclined groove 52.

The utility model discloses in, furtherly, this anchor clamps are still including establishing the core height-adjusting mechanism of 1 position department of core standing groove on the base for the top surface height of treating welding core 8 when needs is adjusted.

Specifically, core plate height adjustment mechanism can be U type regulation supporting shoe 7, and the U type opening of U type regulation supporting shoe 7 corresponds with the vertical opening of core plate standing groove 1, wears to be equipped with the bolt 9 that the head was towards on the cross member of U type opening bottom, and bolt 9 is used for waiting to weld core plate 8 to put into back and supports its bottom and adjust its height through the screw thread rotation. For direct rotation by hand, the bolt 9 is embodied as a wing bolt as shown in fig. 5.

Further, referring to fig. 4, the base is a frame structure, and has a front supporting plate 10 and a rear supporting plate 10, which are respectively provided with front and rear vertical openings forming the core plate placing groove 1, and the U-shaped adjusting support blocks 7 are provided on opposite inner walls of the two plates through mounting holes, bolts and nuts used in cooperation.

The left and right sides of the top of the vertical openings of the front supporting plate 10 and the back supporting plate 10 are provided with notches for arranging the copper cushion blocks 2, the two ends of each copper cushion block 2 are overlapped on the two notches in the front and the back, the two ends of each copper cushion block 2 are provided with counter bores in the vertical direction and are fixedly connected on the notches through inner bolts, and the upper surfaces of the copper cushion blocks 2 are kept flat after the copper cushion blocks are installed and fixed due to the arrangement of the counter bores.

Four corners of the front and the back support plates 10 are provided with grooves for arranging the connecting plates 11, and two ends of the connecting plates 11 are fixed in the grooves through bolt connection. The two upper connecting plates 11 also serve as platforms for the clamping members 3.

The technical scheme provided by the utility model is introduced in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A holder for a T-joint for flux sheet constrained arc welding, the holder comprising:

the device comprises a base, a core plate placing groove (1), a copper cushion block (2), a pressing part (3) and a ceramic plate (5), wherein the core plate placing groove, the copper cushion block and the pressing part are all arranged on the base;

the core plate placing groove (1) is formed in the base along the vertical direction; the two copper cushion blocks (2) are symmetrically arranged on the left side and the right side of the top of the core plate placing groove (1), two opposite surfaces are flush with the inner wall of the core plate placing groove (1), and the upper surface is used for placing the panel (4) to be welded; a plurality of said pressing members (3) for pressing said ceramic plates (5) downwards after they have been placed;

one side of the ceramic plate (5) close to the welding operation part is provided with a through long-strip-shaped notch (51), and the notch (51) is used for inserting and fixing the welding flux sheet (6).

2. The clamp according to claim 1, characterized in that the ceramic plate (5) is provided with an oblique bevel (52) at the bottom of the side close to the welding operation, and the notch (51) is opened at the edge of the oblique bevel (52).

3. The jig of claim 1 or 2 further comprising a core plate height adjusting mechanism provided on the base at the position of the core plate placing groove (1).

4. The clamp according to claim 3, characterized in that the core plate height adjusting mechanism is a U-shaped adjusting support block (7), a U-shaped opening of the U-shaped adjusting support block (7) corresponds to a vertical opening of the core plate placing groove (1), a bolt (9) with a punched head is arranged on a cross member at the bottom of the U-shaped opening, and the bolt (9) is used for abutting against the bottom of the core plate (8) to be welded and adjusting the height of the core plate after the core plate is placed in the core plate placing groove.

5. The jig as claimed in claim 4 wherein the base has front and rear support plates (10) which are respectively provided with front and rear vertical openings forming the core plate placing groove (1), the U-shaped regulating support blocks (7) being provided on opposite inner walls of the plates.

6. The clamp according to claim 4, characterized in that the bolt (9) is a butterfly bolt.

7. A clamp as claimed in claim 1, characterized in that the pressing part (3) is a quick clamp.