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Half-surrounded lower threshold type side wall outer plate drawing die and drawing method

A side wall outer panel and drawing die technology, which is applied in the half-enclosed lower sill-type side wall outer panel drawing die and drawing field, can solve the problem of achieving the goal and affecting the utilization rate of the single-piece material of the side wall of the vehicle factory. Problems such as the economic benefits of the vehicle factory, to achieve the effect of improving material utilization and ensuring consistency

Pending Publication Date: 2021-02-09
CHINA FIRST AUTOMOBILE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The structure of the lower sill position of the "half-enclosed lower sill type" side wall Due to the shape of the A-pillar and the molding characteristics of the lower sill, the "half-enclosed lower sill type" side wall has always adopted the conventional side wall of the "full-enclosed lower sill type". The drawing process complements the modeling methods, such as figure 1 and figure 2 As shown, the material consumption rate of the "semi-enclosed lower sill type" side wall during the molding process is higher than that of the "full-enclosed lower sill" side wall, which seriously affects the single-piece material of the side wall of the OEM. The achievement of the utilization rate will affect the economic benefits of the OEM

Method used

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  • Half-surrounded lower threshold type side wall outer plate drawing die and drawing method
  • Half-surrounded lower threshold type side wall outer plate drawing die and drawing method
  • Half-surrounded lower threshold type side wall outer plate drawing die and drawing method

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specific Embodiment approach

[0045] In order to clearly and completely describe the technical solution of the present invention and its specific working process, in conjunction with the accompanying drawings, the specific implementation of the present invention is as follows:

[0046] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

[0047]In the present in...

Embodiment 1

[0050] The first embodiment discloses a half-enclosed lower sill-type side wall outer panel drawing die, such as image 3 with Figure 4 As shown, the drawing die is designed for the structure that half surrounds the lower sill-type side wall outer panel, and the drawing forming of the half-enclosed lower sill-type side wall outer panel is realized through a drawing forming process.

[0051] Such as Figure 5 As shown, the mold includes: upper mold assembly I and lower mold assembly III; wherein, as Image 6 As shown, the upper mold assembly I includes: upper mold small binder plate 1, upper mold die body 2, upper stripper plate screw 7, nitrogen spring 8, upper guide plate 9 and polyurethane buffer 10; Die assembly III includes: lower mold pressing ring 3, lower mold small pressing plate 4, lower mold punch body 5, lower stripping plate screw 11, supporting rod 12, lower stripping plate screw 11, first lower guide plate 6 , the second lower guide plate 13 and the lower bot...

Embodiment 2

[0055] The second embodiment discloses a half-enclosed lower sill-type side panel drawing method, such as image 3 with Figure 4 As shown, the drawing method is aimed at drawing and forming the half-enclosed lower sill-type side wall outer panel, and through the drawing die described in the first embodiment above, the lower sill-type side wall outer panel half-enclosed The drawing method at the threshold position is changed from ordinary drawing (with process supplements such as draft surface) to open drawing (without process supplements such as draft surface).

[0056] The drawing method sequentially includes: drawing die release stroke, drawing pressing material, drawing forming and separation of upper and lower molds; the specific process is as follows:

[0057] Step 1: Drawing die release stroke:

[0058] Such as Figure 7 As shown, in the starting state of drawing, each movable part of the drawing die is in the state of fully releasing the stroke, wherein, the upper m...

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Abstract

The invention discloses a half-surrounded lower threshold type side wall outer plate drawing die and a drawing method. The drawing die is characterized in that an upper die small pressure plate and alower die small pressure plate are separately arranged at a lower threshold position in the presence of an existing half-surrounded lower threshold type side wall large pressure ring and small pressure rings in a front door opening and a rear door opening. According to the drawing method, the drawing mode of the lower threshold position of a side wall outer plate is changed into open type drawingfrom traditional common drawing, the material utilization rate is effectively increased, and the consistency of the pressure state in a forming process is guaranteed by controlling the stroke of a movable part of the drawing die.

Description

technical field [0001] The invention belongs to the technical field of drawing forming in a stamping process, and in particular relates to a drawing die and a drawing method for a half-enclosed lower sill type side wall outer panel. Background technique [0002] In the automobile outer cover, the side wall is one of the most critical parts in the body outer cover, and its structural size is the largest one in the cover. The geometric shape of the side wall is complex. In order to realize the design intention of the product shape, And to ensure the molding quality of the products in the forming process of each process of the stamping die, the material requirements for the side enclosure parts are relatively high, and the material category of the side enclosure parts is the best among the material categories of the outer cover parts, so the side enclosure parts The material cost is also the highest. If the material utilization rate of the side wall parts is improved, it can sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/22B21D37/10
CPCB21D22/22B21D37/10
Inventor 于博张雄飞李凯张振松张秀青胡勇李春阳赵丹张永亮
Owner CHINA FIRST AUTOMOBILE