CN207464571U - Side wall automatic welding tooling - Google Patents

Abstract

The side wall automatic welding tool belongs to the field of rail vehicle side wall welding technology. The problem of low utilization rate of tooling and high cost of tooling. The side wall automatic welding tooling of the present utility model comprises: a main body frame; a positioning assembly arranged at the upper end of the main body frame, the positioning assembly includes a front mounting template or a reverse mounting template detachably connected to the upper end of the main body frame, and the front mounting The upper end surface of the formwork is an arc surface, which is matched with the inner arc surface of the side wall to be welded, and the upper end surface of the reverse formwork is an arc surface, which is matched with the outer arc surface of the side wall to be welded, and the side wall to be welded and The positive installation formwork or the reverse installation formwork is attached; and two sets of pressing structures symmetrically arranged at both ends of the main frame, each set of pressing structures cooperate with the main frame to clamp the side wall to be welded.

Description

Side wall automatic welding tooling

technical field

The utility model belongs to the technical field of rail vehicle side wall welding, in particular to an automatic side wall welding tool.

Background technique

The basic technological process of rail vehicle production includes profile grinding, profile welding, repairing, side wall processing, treatment, small parts assembly welding, repairing, testing, inspection, etc. The welding process of the side wall basically includes front-mounted welding and reverse-mounted welding; Referring to accompanying drawing 1 and accompanying drawing 2, it is the structural representation of the side wall 1 to be welded, including the inner arc surface 101 and the outer arc surface 102, the welding of the wall panel of the side wall 1 in the prior art usually uses a special welding machine for side wall welding. Welding with tooling, the welding efficiency is low. At the same time, because the urban railway car has the characteristics of small batches and many types of vehicles, the side wall structure is also different. Even if the shape of the wall panels is the same, the length and size of the side walls are different. And radian restrictions lead to the use of multiple sets of tooling for the side walls of the same shape, the utilization rate of each tooling is low, and the cost of the tooling is high.

Utility model content

The purpose of this utility model is to propose an automatic welding tool for side walls, which solves the problem that the welding of side wall panels in the prior art usually uses special tooling for side wall welding, the welding efficiency is low, and the side walls of different types of vehicles have different structures. , due to the limitation of the length and radian of the wallboard, multiple sets of tooling will be used for the side wall of the same shape, the utilization rate of each tooling is low, and the cost of the tooling is high.

In order to solve the above problems, the automatic welding tool for side walls of the utility model includes:

main frame;

A positioning assembly arranged on the upper end of the main frame, the positioning assembly includes a front-mounting formwork or a reverse-installation formwork detachably connected to the upper end of the main body frame, the upper end surface of the front-mounting formwork is an arc surface, and a side wall to be welded The inner arc surface of the anti-installation formwork is matched, the upper end surface of the reverse installation formwork is an arc surface, and the outer arc surface of the side wall to be welded is matched, and the side wall to be welded is fitted with the formal installation formwork or the reverse installation formwork;

And two sets of pressing structures arranged symmetrically at both ends of the main frame, each set of pressing structures cooperate with the main frame to clamp the side wall to be welded.

The main frame includes:

Two beams arranged in parallel;

Two columns arranged at both ends of the beam, the upper end of each column is fixedly connected to one end of the upper beam, and the middle position is fixedly connected to one end of the lower beam;

multiple stiffeners connected between two beams;

And a fixing device arranged at the lower end of each upright, by which the theme frame is fixed on the ground.

The fixtures include:

an anchor plate fixed to the lower end of the column;

a plurality of anchor bolts passing through the anchor plate and connecting to the ground;

a plurality of anchor nuts threadedly connected to each of the anchor bolts above the anchor plate;

and a spring pad arranged between each anchor nut and the anchor plate.

The beams, columns and reinforcing ribs are all square steel pipes.

The positioning component also includes:

A plurality of L-shaped pressure plates evenly arranged along the upper beam in the main body frame, the horizontal plate of the L-shaped pressure plate is fixedly connected with the cross beam, the vertical plate of the L-shaped pressure plate and the side wall of the cross beam The distance between them is greater than the thickness of the formal template and the reverse template;

And a plurality of positioning bolts threadedly connected to the upper end of the vertical plate of each L-shaped pressing plate, the positioning bolts are perpendicular to the vertical plate of the L-shaped pressing plate.

The pressing mechanism includes:

one end of which is fixed to the seat plate at the end of the beam above the middle of the main body frame;

a bent plate assembly that is fixedly connected between one end and the other end of the seat plate through a bolt;

A compression nut fixedly connected to the other end of the bent plate assembly;

A compression screw arranged vertically in threaded connection with the compression nut;

a pressure head arranged at the lower end of the compression screw;

And an aluminum alloy backing plate arranged on the lower end surface of the indenter.

Both ends of the upper end faces of the formal template and the reverse template are provided with protrusions; the inner side wall of the protrusion at any one end of the formal template is used as a positioning surface to cooperate with the side wall of the side wall to be welded; the protrusion at any end of the reverse template The inner side wall of the side wall is used as a positioning surface to cooperate with the side wall of the side wall to be welded.

The beneficial effects of the utility model are as follows: the utility model is designed for the side walls with different lengths and different radians when the side walls are assembled and welded. Due to the different lengths of the side walls of the same model, split-type tooling is used, and a single tooling is fixed by using the chute on the floor of the factory building. According to the length of the side wall, several tooling tools of the utility model are arranged in parallel to meet the different sizes of the side wall. According to production planning requirements, multiple side walls can be welded each time to improve production efficiency.

According to the length of the side wall, a number of side wall automatic welding tools of the present invention are arranged in parallel to meet the welding of side walls of different sizes, and positioning blocks are arranged in the longitudinal direction of the side wall panels. The side wall panels are composed of four profiles. The resulting butt welds are all long and symmetrical butt welds. Considering the appearance requirements of the welds, joints are not allowed in the middle of the welds, and the pressing device cannot interfere with the automatic welding equipment. In the form of compression, the middle weld area is compressed with cast iron briquetting blocks during the welding process to prevent welding deformation. Since the size of the side wall is too large, the positioner cannot be used to automatically turn over, so the front-mounted welding split tooling and the reverse-mounted welding split tooling are designed to be welded separately; the tooling template is a detachable part, and if the curvature of the side wall is changed, just The welding of the new side wall plate can be carried out by replacing the formwork, which reduces the manufacturing cost of the tooling and reduces the production cost.

Description of drawings

Fig. 1 is a schematic diagram of the structure when the outer arc of the side wall to be welded is upward;

Fig. 2 is a structural schematic diagram when the inner arc of the side wall to be welded faces upward;

Fig. 3 is the schematic diagram of the structure of the side wall automatic welding tool of the present invention;

Fig. 4 is the front view of the utility model's side wall automatic welding tool structure;

Fig. 5 is a structural schematic diagram of the formal formwork in the side wall automatic welding tooling of the present utility model;

Fig. 6 is a structural schematic diagram of the inverted formwork in the side wall automatic welding tooling of the present invention;

Fig. 7 is a schematic diagram of the structure of the side wall automatic welding tool of the utility model when it is being equipped with workpieces;

Fig. 8 is a schematic diagram of the structure of the side wall automatic welding tooling of the utility model when the workpiece is reversed;

Among them: 1, side wall, 101, inner arc surface, 102, outer arc surface, 2, main frame, 201, beam, 202, column, 203, reinforcing rib, 204, anchor plate, 205, anchor bolt, 206, Anchor nut, 207, spring pad, 3, positioning assembly, 301, front mounting template, 302, reverse mounting template, 303, pressure plate, 304, positioning bolt, 4, pressing mechanism, 401, seat plate, 402, bending plate assembly , 403, latch, 404, compression nut, 405, compression screw, 406, pressure head, 407, backing plate.

Detailed ways

Embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

Referring to accompanying drawing 3 and accompanying drawing 4, side wall automatic welding frock of the present utility model comprises:

Main frame 2;

The positioning assembly 3 arranged on the upper end of the main frame 2, the positioning assembly 3 includes a front mounting template 301 or a reverse mounting template 302 detachably connected to the upper end of the main body frame 2, the upper end surface of the front mounting template 301 is an arc surface , cooperate with the inner curved surface 101 of the side wall 1 to be welded, the upper end surface of the reverse installation template 302 is a curved surface, cooperate with the outer curved surface 102 of the side wall 1 to be welded, the side wall 1 to be welded and the Lamination of the formal template 301 or the reverse template 302;

And two sets of pressing structures arranged symmetrically at both ends of the main frame 2, each set of pressing structures cooperate with the main frame 2 to clamp the side wall 1 to be welded.

The main frame 2 includes:

Two beams 201 arranged in parallel;

Two columns 202 arranged at both ends of the beam 201, the upper end of each column 202 is fixedly connected to one end of the upper beam 201, and the middle position is fixedly connected to one end of the lower beam 201;

a plurality of ribs 203 connected between the two beams 201;

And a fixing device arranged at the lower end of each upright column 202, through which the theme frame is fixed on the ground.

The fixtures include:

An anchor plate 204 fixed at the lower end of the column 202;

A plurality of anchor bolts 205 passing through the anchor plate 204 and connecting to the ground;

a plurality of anchor nuts 206 threadedly connected to each of the anchor bolts 205 above the anchor plate 204;

And a spring pad 207 arranged between each anchor nut 206 and the anchor plate 204 .

The beams 201, columns 202 and ribs 203 are all square steel pipes.

The positioning assembly 3 also includes:

A plurality of L-shaped pressing plates 303 uniformly arranged along the upper cross beam 201 in the main body frame 2, the horizontal plates of the L-shaped pressing plates 303 are fixedly connected to the cross beams 201, the vertical plates of the L-shaped pressing plates 303 are connected to the The distance between the sidewalls of the crossbeam 201 is greater than the thickness of the front template 301 and the reverse template 302;

And a plurality of positioning bolts 304 threadedly connected to the upper end of the vertical plate of each L-shaped pressing plate 303 , the positioning bolts 304 are perpendicular to the vertical plate of the L-shaped pressing plate 303 . The positive installation template 301 or the reverse installation template 302 is placed between the side wall of the beam 201 and the vertical plate of the L-shaped pressing plate 303, and the lower end surface of the positive installation template 301 or the reverse installation template 302 is in contact with the upper end surface of the L-shaped horizontal plate , tighten the front-mounting template 301 or the reverse-installing template 302 through the positioning bolts 304 .

The pressing mechanism 4 includes;

One end is fixed to the seat plate 401 at the end of the upper beam 201 in the main body frame 2;

A bent plate assembly 402 that is fixedly connected with one end and the other end of the seat plate 401 through a pin 403;

A compression nut 404 fixedly connected to the other end of the bent plate assembly 402;

A compression screw 405 arranged vertically in threaded connection with the compression nut 404;

A pressure head 406 arranged at the lower end of the compression screw 405;

And the aluminum alloy backing plate 407 arranged on the lower end surface of the pressure head 406 .

Referring to accompanying drawing 5 and accompanying drawing 6, described front formwork 301 and anti-installation formwork 302 upper end surfaces both ends are provided with protrusions; The inner side wall of the protrusion of any end of formal formwork 301 is used as positioning surface, and the side wall to be welded 1 side wall matching; the raised inner side wall at any end of the reverse installation template 302 is used as a positioning surface, and is matched with the side wall 1 side wall to be welded.

The positive installation template 301 or the reverse installation template 302 is made of aluminum alloy.

Referring to accompanying drawings 7 and 8, the positioning assembly 3 of the present invention is in direct contact with the side wall 1 to be welded, and is used for the overall positioning and arc guarantee of the side wall 1 to be welded. The material is aluminum alloy, and the formwork is divided into Formal installation template 301 and reverse installation template 302. The automatic welding tool for side wall 1 is divided into front welding and back welding, that is, the outer arc surface and the inner arc surface. The template 302 is reversed.

When the utility model is performing front-mounted welding or reverse-installed welding, the tooling is first fixed on the floor groove, and a plurality of toolings are arranged in parallel according to the size requirements of the side wall 1 to be assembled and welded, and at both ends of the wallboard of the side wall 1 Reserve the space for spot-welding of the wall panels. The wall panels are close to the positioning side. One panel of each side wall is composed of four wall panel profiles. There is no gap between them, and the inner arc surface 101 of the side wall 1 and the arc surface of the formal formwork 301 are tightly pressed, and are pressed for formal welding. Then the side wall 1 is hoisted to the anti-installation tooling, leaned tightly on the positioning side, and pressed tightly, and the outer arc surface 102 is close to the arc surface of the anti-installation formwork 302, and the anti-installation welding is performed.

Claims (7)

1. The side wall automatic welding tool is characterized in that it includes: Main frame (2); The positioning group (3) is arranged on the upper end of the main frame (2), and the positioning group (3) includes a positive installation template (301) or a reverse installation template ( 302), the upper end surface of the formal installation formwork (301) is an arc surface, which is matched with the inner arc surface (101) of the side wall (1) to be welded, and the upper end surface of the reverse installation formwork (302) is an arc surface, Cooperate with the outer arc surface (102) of the side wall (1) to be welded, and the side wall (1) to be welded is attached to the formal installation template (301) or the reverse installation template (302); And two sets of pressing structures arranged symmetrically at both ends of the main frame (2), each set of pressing structures cooperate with the main frame (2) to clamp the side wall (1) to be welded. 2. The side wall automatic welding tool according to claim 1, characterized in that, the main frame (2) comprises: Two beams (201) arranged in parallel; Two columns (202) arranged at both ends of the beam (201), the upper end of each column (202) is fixedly connected to one end of the beam (201) above, and the middle position is connected to one end of the beam (201) below. fixed connection; a plurality of ribs (203) connected between the two beams (201); And a fixing device arranged at the lower end of each column (202), through which the theme frame is fixed on the ground. 3. The side wall automatic welding tool according to claim 2, wherein the fixing device comprises: An anchor plate (204) fixed at the lower end of the column (202); A plurality of anchor bolts (205) passing through the anchor plate (204) and connecting to the ground; a plurality of anchor nuts (206) threadedly connected to each of the anchor bolts (205) above the anchor plate (204); And a spring pad (207) arranged between each anchor nut (206) and the anchor plate (204). 4. The side wall automatic welding tool according to claim 2 or 3, characterized in that, the beams (201), columns (202) and ribs (203) are all square steel pipes. 5. The side wall automatic welding tool according to claim 2, characterized in that, the positioning group (3) also includes: A plurality of L-shaped pressing plates (303) uniformly arranged along the upper cross beam (201) in the main body frame (2), the transverse plates of the L-shaped pressing plates (303) are fixedly connected to the cross beam (201), the The distance between the vertical plate of the L-shaped pressing plate (303) and the side wall of the crossbeam (201) is greater than the thickness of the formal template (301) and the reverse template (302); And a plurality of locating bolts (304) that are threadedly connected to the upper end of the riser of each L-shaped pressing plate (303), the locating bolts (304) are perpendicular to the rising plate of the L-shaped pressing plate (303). 6. The side wall automatic welding tool according to claim 2 or 5, characterized in that the pressing mechanism (4) includes One end is fixed to the seat plate (401) at the end of the upper beam (201) in the main body frame (2); a bent plate assembly (402) fixedly connected with one end and the other end of the seat plate (401) through a pin (403); A compression nut (404) fixedly connected to the other end of the bent plate assembly (402); A compression screw (405) arranged vertically in threaded connection with the compression nut (404); A pressure head (406) arranged at the lower end of the compression screw (405); And an aluminum alloy backing plate (407) arranged on the lower end surface of the pressure head (406). 7. The side wall automatic welding tool according to claim 1, characterized in that, both ends of the upper end faces of the front formwork (301) and the reverse formwork (302) are provided with protrusions; any end of the front formwork (301) The raised inner side wall of the anti-installation formwork (302) is used as a positioning surface to match the side wall of the side wall (1) to be welded; Sidewall fit.