CN219852893U

CN219852893U - Welding frock

Info

Publication number: CN219852893U
Application number: CN202321107697.3U
Authority: CN
Inventors: 金冲; 王蕊玲; 畅冰; 张家标; 沈佳祺
Original assignee: Lonking Shanghai Machinery Manufacturing Co Ltd
Current assignee: Lonking Shanghai Machinery Manufacturing Co Ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-10-20
Anticipated expiration: 2033-05-09

Abstract

The utility model discloses a splice welding tool, which is used for welding a rear cover portal frame and comprises the following steps: a base; the first fixing structure is arranged between the top of the bent pipe and the transverse pipe, and the two ends of the first fixing structure are respectively provided with a first positioning piece for abutting against the top and a second positioning piece for abutting against the transverse pipe; the second fixing structures are arranged on two sides of each leg part of the bent pipe and are used for respectively fixing the first bent plate and the second bent plate on each leg part, and the second fixing structures comprise first hole alignment structures for fixing the first bent plate and second hole alignment structures for fixing the second bent plate, and the force application directions of the first hole alignment structures and the second hole alignment structures are opposite; and the third fixing structure is used for fixing the connecting plate and is symmetrically arranged on two sides of the first fixing structure. The welding fixture disclosed by the utility model can improve the welding efficiency and welding quality of the rear cover door frame, and is accurate and convenient in site positioning welding, high in efficiency and good in using effect.

Description

Welding frock

Technical Field

The utility model relates to the technical field of loaders, in particular to a splice welding tool.

Background

The hood portal is a welding part for manufacturing parts by using square steel pipes and steel plates, special welding tools are not used for positioning welding assembly, the hood portal assembled by conventional manual welding has large size error and high repair rate, and the product quality is greatly influenced, so that the final whole machine assembly is influenced.

Disclosure of Invention

The utility model aims to provide a welding tool, which is used for accurately positioning a welding part, is convenient and efficient when a rear cover portal frame of a loader is manufactured in a welding mode.

In order to achieve the above object, the utility model provides a welding fixture for welding a back cover portal, the back cover portal comprises a bent pipe, a transverse pipe, a connecting plate, a first bending plate and a second bending plate, the bent pipe comprises a top, two legs symmetrically arranged and a bending part connecting the top and the legs, the welding fixture comprises: the base is used for supporting the rear cover door frame; the first fixing structure is arranged between the top of the bent pipe and the transverse pipe, and a first positioning piece for abutting against the top and a second positioning piece for abutting against the transverse pipe are respectively arranged at two ends of the first fixing structure; the second fixing structures are arranged on two sides of each leg of the bent pipe and are used for respectively fixing the first bent plate and the second bent plate on each leg, and the second fixing structures comprise first hole alignment structures used for fixing the first bent plate and second hole alignment structures used for fixing the second bent plate, and the force application directions of the first hole alignment structures and the second hole alignment structures are opposite; and the third fixing structure is used for fixing the connecting plate and is symmetrically arranged on two sides of the first fixing structure.

Optionally, the first fixed knot constructs by a plurality of first supporting seats that have the same structure and constitutes, first supporting seat is rectangular form, both ends set up respectively first setting element and second setting element, first setting element and second setting element are concave table form.

Optionally, the first positioning element is disposed near an edge of the base, and the second positioning element is disposed near a middle portion of the base.

Optionally, the third fixing structure includes a third hole alignment structure for fixing the connection plate.

Optionally, the third hole alignment structure is a dowel pin seat.

Optionally, the third fixing structure is disposed between the first fixing structure and the bent portion.

Optionally, the base is provided with a first abutting structure and a second abutting structure, the first abutting structure is provided with a first hole alignment structure, the second abutting structure is provided with a second hole alignment structure, and the abutting directions of the first abutting structure and the second abutting structure are opposite.

Optionally, the first hole alignment structures and the second hole alignment structures are staggered, and the first hole alignment structures and the second hole alignment structures are multiple.

Optionally, a second supporting seat for supporting the leg of the elbow is arranged between the first supporting structure and the second supporting structure.

Optionally, a third supporting seat for supporting the leg is arranged on the outer side of the second fixing structure, the third supporting seat and the second supporting seat are on the same straight line, and the upper surface of the third supporting seat is flush with the upper surface of the second supporting seat.

The welding fixture disclosed by the utility model can improve the welding efficiency and welding quality of the rear cover door frame, and is accurate and convenient in site positioning welding, high in efficiency and good in using effect.

Drawings

Fig. 1 is a schematic perspective view of a welding tool for a back cover door frame according to a preferred embodiment of the present utility model.

FIG. 2 is a schematic view of a rear shroud portal tailor-welding tool in accordance with a preferred embodiment of the present utility model.

FIG. 3 is a schematic view of another usage state of the back shroud portal tailor-welding tool according to the preferred embodiment of the present utility model.

Reference numerals:

20. the welding fixture comprises a welding fixture body, 22, a base, 24, a first fixing structure, 25, a first supporting seat, 252, a first positioning piece, 254, a second positioning piece, 26, a second fixing structure, 262, a first hole alignment structure, 263, a first abutting structure, 264, a second hole alignment structure, 265, a second abutting structure, 27, a second supporting seat, 28, a third fixing structure, 29 and a third supporting seat;

60. rear cover door frame, 62, return bend, 622, top, 624, shank, 64, cross tube, 66, connecting plate, 67, first bent plate, 68, second bent plate.

Detailed Description

In order to make the utility model more comprehensible, preferred embodiments accompanied with the accompanying drawings are described in detail as follows:

referring now to fig. 1 and 2, fig. 1 shows a splice welding tool 20 according to a preferred embodiment of the present utility model, and fig. 2 shows a back cover door frame 60 for which the splice welding tool 20 is adapted. As shown in fig. 2, the welding tool 20 provided in the preferred embodiment of the present utility model is used for welding a back cover door frame 60, and the back cover door frame 60 is assembled by positioning and welding two square pipe parts and three steel plate parts, and the back cover door frame 60 is mainly composed of, for example, an elbow 62, a transverse pipe 64, a connecting plate 66, a first bending plate 67 and a second bending plate 68, wherein the elbow 62 includes a top 622, two symmetrically arranged legs 624, and a bending 626 connecting the top 622 and the legs 624. The section bar forming the bent pipe 62 and the cross pipe 64 may be square pipe, and the steel material forming the connection plate 66, the first bending plate 67 and the second bending plate 68 may be steel plate.

Referring to fig. 1, 2 and 3, the tailor welding tool 20 includes a base 22, and a first fixing structure 24, a second fixing structure 26 and a third fixing structure 28 disposed on the base 22. The components comprising the back housing door 60 are placed on the base 22, the first securing structure 24 may be used to secure the top 622 and cross tube 64 of the elbow 62, the second securing structure 26 may be used to secure the two legs 624, the first elbow 67 and the second elbow 68 of the elbow 62, and the third securing structure 28 may be used to secure the connecting plate 66.

According to the directions shown in fig. 1 and 2, the first fixing structure 24 is disposed on the right half portion of the base 22 and symmetrically disposed with respect to the top 622 of the elbow 62, the first fixing structure 24 is integrally formed, two ends of the first fixing structure are respectively provided with a first positioning member 252 for fixing the top 622 and a second positioning member 254 for fixing the cross tube 64, the top 622 of the elbow 62 is fixed to the first positioning member 252, and the cross tube 64 is fixed to the second positioning member 254. The second fixing structure 26 is symmetrically disposed on the left half of the base 22, and is used for fixing the first bending plate 67 and the second bending plate 68 on the leg portions 624, for example, fixing the first bending plate 67 and the second bending plate 68 on each leg portion 624 from the side by aligning holes, and each leg portion 624 may be provided with the first bending plate 67 and the second bending plate 68. The second securing structure 26 includes two symmetrically disposed first hole alignment structures 262 and two symmetrically disposed second hole alignment structures 264. A plurality of third fixing structures 28 are symmetrically disposed on both sides of the first fixing structure 24, and the third fixing structures 28 may be used to fix the connection plate 66. By providing the first, second and third fixing structures 24, 26, 28 on the base 22, the main components of the back cover door frame 60, such as the elbow 62, the cross tube 64, the connecting plate 66, the first and second bending plates 67, 68, may be fixed to facilitate welding; by simultaneously fixing the bent pipe 62 and the cross pipe 64 to both ends of the first fixing structure 24, the bent pipe 62 and the cross pipe 64 can be precisely positioned and precisely welded.

Referring to fig. 1, the first fixing structure 24 may be formed by a plurality of first supporting seats 25 having the same structure, for example, an even number of the first supporting seats 25 are symmetrically disposed, the first positioning members 252 and the second positioning members 254 are disposed at two ends of the first supporting seats 25 respectively, and the first positioning members 252 and the second positioning members 254 may be disposed in a concave stage shape. The second positioning member 254 may be disposed near an edge of the base 22 and the second positioning member 254 may be disposed near a middle portion of the base 22. The first fixing structure 24 is a long strip-shaped supporting seat, and the first positioning piece 252 and the second positioning piece 254 at two ends of the supporting seat are concave, so that the fixing effect is good, and the material consumption is low.

The base 22 is provided with a first abutting structure 263 and a second abutting structure 265, the first hole alignment structure 262 is formed on the first abutting structure 263, the second hole alignment structure 264 is formed on the second abutting structure 265, the abutting directions of the first abutting structure 263 and the second abutting structure 265 are opposite, and the first abutting structure 263 and the second abutting structure 265 are fixed on the base 22. The first and second hole alignment structures 262, 264 are staggered to secure the first and second curved plates 67, 68, respectively, on either side of the leg 624 of the elbow 62. Alignment holes are provided in the first and second hole alignment structures 262, 264 and alignment holes are also provided in the first and second curved plates 67, 68. When welding, the alignment holes on the first and second curved plates 67 and 68 are aligned with the alignment holes provided on the first and second hole alignment structures 262 and 264, respectively, to tack weld the first and second curved plates 67 and 68 to the leg 624. The first and second hole alignment structures 262 and 264 may each be provided in an even number and symmetrically disposed on the front and rear sides of the base 22 to secure the first and second curved plates 67 and 68, respectively, to the two legs 624 of the curved tube 62. Positioning the first bending plate 67 and the second bending plate 68 through the hole alignment structure is accurate, convenient and efficient; the first hole alignment structure 262 and the second hole alignment structure 264 are arranged in a staggered mode, the first abutting structure 263 and the second abutting structure 265 which are opposite in matching abutting direction are matched, the first bending plate 67 and the second bending plate 68 are not easy to move relative to the leg 624 in the welding process, and the positioning is accurate and the using effect is good.

A second support seat 27 for supporting the leg 624 is provided between the first and second abutting structures 263 and 265. A third supporting seat 29 for supporting the leg 624 is provided outside the second fixing structure 26, and an upper surface of the third supporting seat 29 is flush with an upper surface of the second supporting seat 27. The second support seat 27 and the third support seat 29 cooperate to effectively support the leg 624 of the elbow 62.

The third fixing structure 28 is disposed between the first fixing structure 24 and the bent portion 626 of the bent pipe 62, the third fixing structure 28 includes a third hole alignment structure for fixing the connecting plate 66, the third hole alignment structure may be a positioning pin seat, the part connecting plate 66 is placed on the positioning pin seat and positioned by a hole, and by fixing the connecting plate 66 by the hole alignment structure or the positioning pin seat, not only the positioning is accurate, but also the material consumption is low.

When in use, the bent pipe 62 of the back cover door frame part can be firstly placed on the first positioning piece 252 and the second positioning piece 254 on the second supporting seat 27, the third supporting seat 29 and the first supporting seat 25, and the first positioning piece 252, the second positioning piece 254, the second supporting seat 27 and the third supporting seat 29 can be respectively provided with concave tables for positioning the bent pipe 62, and the heights of the concave tables can be different due to different supporting positions and different heights of the supporting positions. The part cross tube 64 is then positioned in the recess of the third support base 29 and the part first bent plate 67 is positioned in the hole in the third fixed structure 28. Finally, the part connecting plate 66, the first bending plate 67 and the second bending plate 68 are placed on the part bent pipe 62 to be aligned and positioned with the holes on the first hole alignment structure 262 and the second hole alignment structure 264, and the welding gun can be used for welding after the placement of the parts. The assembly welding tool is accurate in site positioning assembly welding and high in efficiency, assembly welding efficiency and assembly welding quality of the rear cover door frame are improved, and the purposes of improving production quality and production efficiency of the parts are achieved.

While the utility model has been described with respect to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims. Equivalent embodiments of the present utility model will be apparent to those skilled in the art having the benefit of the teachings disclosed herein, when considered in the light of the foregoing disclosure, and without departing from the spirit and scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A splice welding frock for welding back cover portal (60), back cover portal (60) include return bend (62), violently manage (64), connecting plate (66), first bent plate (67) and second bent plate (68), return bend (62) include top (622), two shank (624) of symmetry setting and connect curved portion (626) of top (622) and shank (624), its characterized in that, splice welding frock includes:

a base (22) for supporting the rear cowl door (60);

the first fixing structure (24) is arranged between the top (622) of the bent pipe (62) and the transverse pipe (64), and a first positioning piece (252) for abutting against the top (622) and a second positioning piece (254) for abutting against the transverse pipe (64) are respectively arranged at two ends of the first fixing structure;

the second fixing structures (26) are arranged on two sides of each leg (624) of the bent pipe (62) and are used for fixing the first bent plate (67) and the second bent plate (68) on each leg (624) respectively, and comprise a first hole alignment structure (262) for fixing the first bent plate (67) and a second hole alignment structure (264) for fixing the second bent plate (68), and the force application directions of the first hole alignment structure (262) and the second hole alignment structure (264) are opposite; and

and the third fixing structure (28) is used for fixing the connecting plate (66) and is symmetrically arranged on two sides of the first fixing structure (24).

2. The welding fixture according to claim 1, wherein the first fixing structure (24) is formed by a plurality of first supporting seats (25) with the same structure, the first supporting seats (25) are long-strip-shaped, the first positioning pieces (252) and the second positioning pieces (254) are respectively arranged at two ends, and the first positioning pieces (252) and the second positioning pieces (254) are concave.

3. The tailor welding tool according to claim 2, wherein the first positioning element (252) is arranged close to an edge of the base (22), and the second positioning element (254) is arranged close to a middle of the base (22).

4. The tailor welding tool according to claim 1, characterized in that the third fixing structure (28) comprises a third hole alignment structure for fixing a connection plate (66).

5. The tailor welding tool of claim 4, wherein the third hole alignment structure is a dowel pin holder.

6. The tailor welding tool according to claim 1, characterized in that the third fixation structure (28) is arranged between the first fixation structure (24) and the bend (626).

7. The tailor welding tool according to claim 1, wherein a first tightening structure (263) and a second tightening structure (265) are provided on the base (22), the first hole alignment structure (262) is formed on the first tightening structure (263), the second hole alignment structure (264) is formed on the second tightening structure (265), and the tightening directions of the first tightening structure (263) and the second tightening structure (265) are opposite.

8. The tailor welding tool of claim 7, wherein the first hole alignment structure (262) and the second hole alignment structure (264) are staggered, the first hole alignment structure (262) and the second hole alignment structure each having a plurality of knots.

9. The tailor welding tool according to claim 7, characterized in that a second support seat (27) for supporting the leg (624) of the elbow (62) is arranged between the first abutting structure (263) and the second abutting structure (265).

10. The tailor welding tool according to claim 9, characterized in that a third support seat (29) for supporting the leg portion (624) is arranged outside the second fixing structure (26), the third support seat (29) and the second support seat (27) are on the same straight line, and the upper surface of the third support seat (29) and the upper surface of the second support seat (27) are flush.