Tubular product multi-section one-time closing-in forming die and forming method

Abstract

The invention belongs to the technical field, and particularly relates to a tubular product multi-section one-time closing-in forming die and a forming method. The die sequentially comprises a supporting plate, a lower die holder, a base plate, a concave die plate, a stripper plate, a concave die fixing plate, a second concave die, a first concave die, a concave die fixing sleeve and an upper dieholder; the lower die holder, the base plate, the concave die plate and the stripper plate are tightly connected, the concave die fixing plate, the second concave die, the first concave die, the concave die fixing sleeve and the upper die holder are tightly connected, a gap is formed between the supporting plate and the lower die holder, and a gap is formed between the stripper plate and the concave die fixing plate; a material return rod penetrates through the lower die holder, the base plate and the concave die plate, one end of the material return rod is fixedly connected with the supporting plate, and the other end of the material return rod is fixedly connected with the stripper plate; a positioning core rod penetrates through the concave die plate, the stripper plate, the concave diefixing plate, the second concave die, the first concave die and the concave die fixing sleeve, one end of the positioning core rod is fixedly connected with the base plate, and the other end of the positioning core rod is connected with the upper die holder. The technology is easy to master, manufacturing of the die is easy to ensure, the manufacturing cost is low, and the product size precisionand shape precision are easy to ensure, and operation is safe and convenient.

Description

technical field

[0001] The invention belongs to the technical field of auto parts, and in particular relates to a multi-segment disposable closing forming mold for pipes and a forming method. Background technique

[0002] In automotive pipe fittings, in order to facilitate assembly and reduce processing procedures, such as figure 1 Structural pipe fittings have many applications.

[0003] The above parts need to be processed in two stages on the pipe fittings. The purpose is to reduce the processing technology and material consumption, but the performance and size will not be affected.

[0004] For such multi-stage stepped pipe fittings, the closing process is generally used for processing. At present, most manufacturers use the combination of horizontal hydraulic press and closing die for processing. For multi-steps, it is realized by multiple closing. The processing beat is slow, and the positioning benchmarks of multiple processing are inconsistent. Moreover, the hori...

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