Combined fixture for cast crossbeams

Abstract

The invention discloses a combined fixture for cast crossbeams, which comprises a fixed seat, a rotary plate, two end hole drill plates, at least two inclined hole drill plates and a plurality of clamping parts; the fixed seat is provided with a mounting surface connected with a drilling machine workbench and a fixing surface perpendicular to the mounting surface; the rotary plate is rotatably mounted on the fixing surface through a connecting shaft; the end hole drill plates are fixed on both sides of the rotary plate, and the surfaces of the end hole drill plates are provides with die holes corresponding to both sides of a cast crossbeam to be drilled; the inclined hole drill plates are mounted on the surface of the rotary plate, and each inclined hole drill plate is provided with drill plate holes corresponding to the positions and sizes of inclined holes; and the clamping parts are detachably mounted on the rotary plate, and are used for mounting the cast crossbeam on the rotary plate. The invention is integrated with multiple processes for machining, positioning is uniform, the number of processes is reduced, the carrying cost is reduced, and the efficiency is increased.

Description

technical field [0001] The invention relates to a casting beam composite fixture, in particular to a fixture which is arranged on a radial drilling machine workbench and processes each hole of a casting beam through rotary positioning. Background technique [0002] The car beam is an important part of the car, such as image 3 , 4 Shown is a schematic diagram of the beam structure of a heavy-duty vehicle, in view of the fact that the product is a complex, asymmetric large-scale product. The following problems exist in its actual processing: [0003] 1. Multi-process processing. This product has many holes processed, including the processing holes a, c and inclined holes b on the end surface, and they are distributed on different planes. It requires multi-station processing in different steps. The number of positioning reference replacements is large, and the handling cost is increased. and time consumption; [0004] 2. The processing is difficult and the precision is high...

AI Technical Summary

Problems solved by technology

[0003] 1. Multi-process processing. This product has many holes processed, including the processing holes a, c and inclined holes b on the end surface, and they are distributed on different planes. It requires multi-station processing in different steps. The number of positioning reference replacements is large, and the handling cost is increased. and time consumption;

[0004] 2. The processing is difficult and the precision is high. The angle β of the center line of the eight oblique holes b is 48°17′, and the two sides are asymmetrical structures;

[0005] 3. Heavy weight and low efficiency. The product is time-consuming, labor-intensive and low-efficiency in terms of handling and operation.

[0006] Therefore, it is not suitable for long-term mass production, the number of handling is large, the quality cannot be stabilized, and the cost is too high.

This will undoubtedly greatly increase the manufacturing cost

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