CN202701661U - Assembly and welding tool for bogie frame beams - Google Patents

Abstract

The utility model relates to an integrated tooling for assembly and welding of a bogie frame crossbeam, which comprises a fixture for fixing and clamping workpieces. The assembly and welding are completed on the fixture, and at least one pair of fixtures for fixing The clamping head of the clamp is provided with an elevator on both sides of the clamp, and a support seat is rotatably connected to each elevator, and the support base is driven to rotate by a slewing mechanism, and a pair of clamping heads pass through The clamping devices are respectively installed and fixed on the corresponding support bases, and the slewing mechanism and the elevator are connected with the electric control cabinet. The utility model has the advantages of simple structure, strong practicability, convenient operation and high safety performance. The assembling and welding processes of the frame beams are integrated on one tooling, which can greatly improve production efficiency and reduce production costs, and the fixtures in the tooling can realize The rotation in the direction of X-axis and Y-axis makes all welding seams of the workpiece realize the welding at PA position, and the welding quality is easily guaranteed.

Description

Bogie frame beam assembly and welding integrated tooling

technical field

The utility model relates to a process device used in the manufacture of a rail vehicle body, in particular to an integrated tooling for assembling and welding a bogie frame beam of a rail vehicle, and belongs to the technical field of rail vehicle manufacturing.

Background technique

At present, the speed of high-speed EMUs has reached 380 kilometers per hour. Compared with locomotives and low-speed EMUs, the frame beams as the main load-carrying components are more stringent in terms of design and manufacturing process requirements. How to ensure the high precision of the design of the beams? The size requirement has become a difficult point in the EMU frame assembly and welding technology.

There are more than 40 welding seams concentrated on the front and back of the 2.5m2 upper cover plate of the beam, and the size control is mostly ±2mm. In order to ensure the relevant dimensions and control the huge deformation that will be produced, according to the general assembly method, the inner ribs and webs must be assembled on a special assembly tool, and then welded on the displacer, and then removed, adjusted After flattening, install the assembly tooling again, and then install the welding positioner, a total of 5 processes. Too many processes will cause the tolerance to accumulate and become larger, and the cost of man-hours will remain high. For this reason, special tooling is needed to solve these problems.

Utility model content

The main purpose of the utility model is to solve the above problems and provide an integrated tooling for assembly and welding of bogie frame beams which is easy to operate, can greatly improve production efficiency and reduce production costs.

In order to achieve the above object, the technical solution of the utility model is:

An integrated tooling for assembly and welding of bogie frame crossbeams, including fixtures for fixing and clamping workpieces, assembly and welding are completed on the fixtures, and at least one pair of clamps for fixing the fixtures are symmetrically arranged on the fixtures For the clamping head, an elevator is respectively arranged on both sides of the clamp, and a supporting base is rotatably connected to each of the elevators, and the supporting base is driven to rotate by a slewing mechanism, and a pair of the clamping heads are separated by the clamping device. Installed and fixed on the corresponding support base, the slewing mechanism and the elevator are connected with the electric control cabinet.

Further, the clamping device is a collar plate.

Further, the upper surface and/or the lower surface of the clamp is an operation plane having a flatness required by the design.

Further, a positioning block for positioning the workpiece, a presser and a pressing plate for pressing and fixing the workpiece are arranged on the fixture.

Further, the compactor is a screw-type compactor.

Further, the slewing mechanism adopts a worm gear reducer.

Further, a pair of clamping heads are arranged symmetrically on both the X axis and the Y axis of the clamp.

In summary, the bogie frame beam assembly and welding integrated tooling described in the utility model has a simple structure, strong practicability, convenient operation, and high safety performance, and integrates the assembly and welding processes of the frame beam into one tooling. , can greatly improve production efficiency and reduce production costs, and the fixture in the tooling can realize rotation in the X-axis and Y-axis directions, so that all welds of the workpiece can be welded at the PA position, and the welding quality is easily guaranteed.

Description of drawings

Fig. 1 is the structural representation after the utility model is assembled;

Fig. 2 is a schematic view of the structure of the utility model fixture;

Fig. 3 is A-A sectional view of Fig. 2.

As shown in Figure 1 to Figure 3, clamp 1, positioning block 2, compactor 3, pressure plate 4, lifter 5, lift motor 6, column 7, bracket 8, safety bolt 9, support seat 10, clamping head 11 , Clamping device 12, worm gear reducer 13, workpiece 14, bearing housing 15.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

As shown in Figure 1, an integrated tooling for assembling and welding the bogie frame beam is used for assembling and welding workpiece 14. The assembly and welding of each component is completed on this tooling at the same time.

As shown in FIG. 1 , the integrated tooling includes a jig 1 for fixing and clamping workpieces. The jig 1 is a working platform for assembly and welding. The assembly and welding of the workpiece 14 are all completed on the jig 1 . In order to ensure the assembly and welding accuracy of the workpiece 14, the upper surface and/or lower surface of the fixture 1 (that is, the plane in contact with the workpiece) is an operating plane with flatness required by the design, that is, a high-precision grinding plane.

As shown in Figures 2 and 3, a plurality of positioning blocks 2 for positioning the workpiece 14, a compactor 3 and a pressing plate 4 for compressing and fixing the workpiece 14 are provided on the fixture 1, wherein the compactor 3 is preferably The screw-type compactor with convenient and quick operation is adopted. A plurality of positioning blocks 2 position the upper and lower cover plates, inner webs and ribs of the beam to be processed, and then use the screw type compactor 3 and the pressure plate 4 to fix the components of the beam to ensure the key parts of the above components At the same time, it can be lifted and flipped to a suitable position to realize welding, and to ensure effective control of welding deformation, so as to achieve good product size during beam assembly and welding, ensure the quality of weldments, reduce labor intensity of workers, and improve work efficiency.

An elevator 5 is arranged on both sides of the fixture 1. The elevator 5 is composed of a lifting motor 6, a column 7 and a liftable bracket 8. The column 7 is fixed on the workshop floor by a safety bolt 9, and the lifting motor 6 is fixed on the column 7. The top of the top, the bracket 8 moves up and down along the column 7 driven by the lifting motor 6, and the lifting motor 6 is connected with the electric control cabinet (not shown in the figure) and is uniformly controlled by the electric control cabinet.

The bracket 8 on each elevator 5 is connected to a supporting base 10 in rotation, one of the supporting bases 10 (ie, the supporting base at the driving end) is driven to rotate by the rotary mechanism, and the supporting base 10 at the other end is driven to rotate. The support base 10 on the left side is the driving end, the support base 10 on the right side is the driven end, and the support base 10 on the driving end is connected with the rotary mechanism. The machine 13 is connected with the electric control cabinet, and is uniformly controlled by the electric control cabinet. The supporting seat 10 at the driven end on the right side is connected with the bracket 8 through bearing rotation, and the bearing is fixed on the bearing seat 15 .

At least one pair of clamping heads 11 for fixing the clamp 1 is arranged symmetrically on the clamp 1, and the clamping heads 11 are welded and fixed on the periphery of the clamp 1, and a pair of clamping heads 11 are respectively installed and fixed on corresponding On the two supporting seats 10. The bracket 8 of the elevator 5 drives the support base 10 to lift, and the worm gear reducer 13 drives the support base 10 to rotate, and the fixture 1 lifts and rotates with the support base 10. By controlling the height and flip angle of the support base 10, the workpiece can be Raise and flip to a suitable position to realize PA welding of the workpiece and ensure the welding quality of the workpiece.

Considering the self-weight of the crossbeam, the clamping head 11 should have sufficient carrying capacity, and the installation and fixing should be fast, reliable and convenient. , the clamping device 12 is a kalan plate with quick clamping function, and the kalan plate is fixed on the support base 10 .

In order to facilitate the operator to weld the workpiece 14 in all directions, so that all welds of the workpiece 14 can realize PA welding, and at the same time achieve the purpose of saving man-hours and costs, in this embodiment, the shape of the fixture 1 is roughly square or rectangular. The fixture 1 can also adopt a circular structure according to the requirements of processing the workpiece 14. A pair of clamping heads 11 are symmetrically arranged in the X-axis and Y-axis directions of the fixture 1, and the workpiece 14 can be rotated 90 degrees in the horizontal direction according to the welding requirements. The welding operation is convenient, so that the size of the workpiece 14 can be effectively controlled without interfering with the welding operation space.

As shown in Figures 1 to 3, the working process of the tooling will be described in detail below.

When the workpiece 14 is being welded, the fixture 1 is lowered to a lower position, and a pair of clamping heads 11 on the X axis of the fixture 1 are respectively fixed on the two support seats 10 through the collar plate. At this time, on the fixture 1 Assemble the upper cover plate, inner web and each rib plate of the beam, and ensure the relative size of each part through the limitation of multiple positioning blocks 2, and then use the screw type compactor 3 and the pressure plate 4 to fix the parts of the beam live.

Control the elevator 5 to raise the fixture 1, and at the same time, rotate the support base 10 through the worm gear reducer 13 to tilt the fixture 1 at a certain angle to realize the PA position welding of the upper cover plate and each weld seam.

Control the rotation of the support base 10, turn the fixture 1 to the other side, lower the fixture 1 to a lower position, assemble the lower cover, and ensure the relative size through the limitation of multiple positioning blocks 2, and then use the screw type compactor 3. The pressing plate 4 fixes the parts of the beam.

After raising fixture 1 again and tilting at a certain angle, the PA position welding of the lower cover plate and each rib plate weld seam is realized.

During the welding process, when it is necessary to weld the side of the workpiece in the Y-axis direction, untie the collar plate on the support seat 10, and rotate the fixture 1 in the horizontal direction by 90 degrees through the crane in the workshop. A pair of clamping heads 11 on the Y axis of the workpiece are respectively fixedly connected with the two supporting bases 10, and fixed with a collar plate.

Repeat the above welding process until all welding is completed. During the welding process, PA welding of all welds of the box structure can be realized to ensure the welding quality.

As mentioned above, a similar technical solution can be derived in combination with the solutions presented in the drawings and the embodiments. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the utility model still belong to the scope of the technical solution of the utility model.

Claims (7)

1. integrated frock of bogie frame crossbeam assembly welding, it is characterized in that: comprise the anchor clamps for fixing and holding workpiece, assemble and be welded on the described anchor clamps and finish, be symmetrically arranged with the clamping head that at least one pair of is used for fixing described anchor clamps on the described anchor clamps, both sides at described anchor clamps respectively arrange a lift, a supporting seat is rotatably connected on each described lift, described supporting seat is by the slew gear driven rotary, a pair of described clamping head is fixed on respectively on the corresponding described supporting seat by clamping device, described slew gear, lift is connected with electrical control cubicles.

2. the integrated frock of bogie frame crossbeam assembly welding according to claim 1 is characterized in that: described clamping device is the blue dish of card.

3. the integrated frock of bogie frame crossbeam assembly welding according to claim 1, it is characterized in that: the upper surface of described anchor clamps and/or lower surface are the operation planar with designing requirement flatness.

4. the integrated frock of bogie frame crossbeam assembly welding according to claim 1 is characterized in that: be provided be used to the locating piece of locating described workpiece, for the compactor and the pressing plate that are fixed described workpiece at described anchor clamps.

5. the integrated frock of bogie frame crossbeam assembly welding according to claim 4, it is characterized in that: described compactor is the screw type compactor.

6. the integrated frock of bogie frame crossbeam assembly welding according to claim 1 is characterized in that: described slew gear employing worm-gear speed reducer.

7. according to claim 1 to the integrated frock of 6 each described bogie frame crossbeam assembly weldings, it is characterized in that: on the X-axis of described anchor clamps, Y-axis, all be symmetrically arranged with a pair of described clamping head.

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