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Forming mold for bucket bottom plate and its forming process

A molding process and molding die technology, applied in the field of construction machinery bucket bottom molding die and its molding process, can solve the problems of large errors, many processes, and low efficiency, and achieve the effects of small errors, few processes, and high efficiency

Inactive Publication Date: 2014-10-08
LIUZHOU JINMAO MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a bucket bottom plate molding die and its molding process to solve the shortcomings of the above-mentioned prior art, such as large errors, many processes, and low efficiency

Method used

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  • Forming mold for bucket bottom plate and its forming process
  • Forming mold for bucket bottom plate and its forming process
  • Forming mold for bucket bottom plate and its forming process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of mold for forming the bottom plate of a bucket (see Figure 1 ~ Figure 3 ), including a lower mold 2 and an upper mold 3, the lower mold 2 includes a lower mold bottom plate 201, lower mold side plates 202 respectively installed on both sides of the lower mold bottom plate 201, and the lower mold bottom plate 201 is installed under a hydraulic press to work On the platform; the upper mold 3 includes an upper template 301, 11 punches 302 fixed parallel to the bottom of the upper template 301, and the punch 302 is an arc rod with an arc stamping surface matching the shape of the workpiece The upper template 301 is installed on the bottom of the upper workbench 6 of the hydraulic press; an adjustment backing plate 4 for adjusting the rebound coefficient is also provided between the punch 302 and the bottom plate 201 of the lower mold, and the adjustment backing plate 4 is fixedly installed on the lower On the mold bottom plate 201.

[0038] 10 lower mold reinforci...

Embodiment 2

[0042] A forming process for the bottom plate of a bucket, which is a process for forming the bottom plate of a bucket by using the forming mold for the bottom plate of the bucket described in Embodiment 1. The process includes the following steps:

[0043] A. Cutting: flame cutting the steel plate according to the size into the rough plate 8 of the bucket bottom plate and the rough plate 9 of the reinforcement plate. Ⅲ903 3 pieces in total (see Figure 4 , Figure 5 );

[0044] B. Spot welding assembly: respectively spot-weld the reinforced plate rough plate Ⅰ901, reinforced plate rough plate Ⅱ902, and reinforced plate rough plate Ⅲ903 on the surface of the rough plate 8 of the bucket bottom plate body, and assemble into a planar bucket bottom plate blank 10 (see Image 6 );

[0045] C. Hydroforming: The bucket bottom plate blank 10 after spot welding is hydroformed on the hydraulic press through the bucket bottom plate forming mold to obtain the bucket bottom plate workp...

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Abstract

The invention relates to a forming die and a forming technology, in particular to a bucket baseplate forming die and a forming technology of a bucket baseplate. The die comprises a lower die and an upper die; the lower die comprises a lower die baseplate and lower die side plates; the upper die comprises an upper die plate and a plurality of male dies fixed at the bottom of the upper die plate in parallel; the male dies are arc-shaped rod pieces; the upper die plate is mounted at the bottom of an upper workbench of a hydraulic press; and an adjustment padding plate used for adjusting the resilience coefficient is further arranged between the male dies and the lower die baseplate. The forming technology comprises the following steps: A, blanking: performing flame cutting to steel plates to obtain bucket baseplate body blank plates and reinforcing plate blank plates respectively; B, spot welding and assembling: spot welding the reinforcing plate blank plates on the surfaces of the bucket baseplate body blank plates and assembling to form a planar bucket baseplate blank; and C, hydraulic forming: performing hydraulic forming to the bucket baseplate blank on the hydraulic press through the forming die to obtain a bucket baseplate workpiece. The bucket baseplate forming die and the forming technology have the characteristics of small errors, high precision, fewer procedures, high efficiency and low production cost, and can be suitable for mass production.

Description

technical field [0001] The invention relates to a forming die and a forming process, in particular to a forming die for a construction machinery bucket bottom plate and a forming process. Background technique [0002] The bucket used in construction machinery is generally welded by the bottom plate and the side plate. In order to increase the strength of the bucket, multiple reinforcement plates are usually welded on the bottom plate of the bucket. However, the existing processing methods for the bottom plate of construction machinery buckets are to separately cut the bucket bottom plate body and reinforcement plate, and then use three-core rollers to roll the bucket bottom plate body and reinforcement plate into arc-shaped plates respectively, and then roll them into arc-shaped plates. A plurality of reinforcing plates are respectively welded on the bucket bottom plate body one by one. The disadvantages of the above method are: 1. The rolling error is large, the process is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10B21D5/06B21D43/09B21D43/00
Inventor 何拥军何嘉圣何嘉贤曾德信甘有瑶赵帮强
Owner LIUZHOU JINMAO MACHINERY