CN221473125U - Sheet metal skeleton roof beam embossing mold utensil - Google Patents

Abstract

The utility model discloses a sheet framework Liang Yazhi die which is characterized in that: the die comprises a base (1), two symmetrically distributed brackets (2) are arranged on the base (1), a lower die (4) is rotatably supported on the brackets (2) through a rotating shaft (3), the cross section of the lower die (4) is in a convex shape, the die further comprises an upper die (5) which is matched with the two lower dies (4) simultaneously, the cross section of the bottom end face of the upper die (5) is in a concave shape, and the bottom end face of the upper die (5) is in a cambered surface. The pressing die is simple in structure, ingenious in design and reasonable in layout, and can rapidly and conveniently realize the bending operation of the thin plate skeleton beam.

Description

Sheet metal skeleton roof beam embossing mold utensil

Technical Field

The utility model relates to the field of stamping forming, in particular to a sheet frame beam pressing die.

Background

The body structure of rolling stock is continuously moving toward a trend of weight reduction and overall load bearing. The frame beam of drum-type vehicle is a side structural component which accords with the development trend, and is usually formed by adopting a cold-rolled sheet (the thickness is less than or equal to 3 mm) strip, bending sheet metal into a shape (longitudinal section) with a standard, and then adopting a stretch bending process method.

Stretch bending tends to be mature and popular due to the advantage of high forming precision, but according to the requirements of continuous improvement and reasonable optimization, the stretch bending method also has the defect of: 1. due to a stretch bending forming mechanism, breakage caused by microscopic defects of materials is very easy to occur in the stretch bending process, so that the yield of a stretch bending method is lower; 2. because the stretch bending forming mechanism is needed, the two ends of the profile are required to be reserved with larger clamping length, and the profile is cut off after stretch bending forming, the material utilization rate of the stretch bending method is low; 3. as the mechanism is limited, the stretch bending method is more suitable for rejecting the requirement of all prior holes, no matter the hole site and the size.

There is thus a need for a method or apparatus that solves the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides the pressing die which is simple in structure, ingenious in design and reasonable in layout and can rapidly and conveniently realize the bending operation of the thin plate skeleton beam.

The technical scheme of the utility model is as follows: a sheet metal skeleton roof beam embossing mold utensil, its characterized in that: the die comprises a base 1, two symmetrically distributed brackets 2 are arranged on the base 1, a lower die 4 is rotatably supported on the brackets 2 through a rotating shaft 3, the section of the lower die 4 is in a convex shape,

The die further comprises an upper die 5 which is matched with the two lower dies 4 at the same time, the section of the bottom end face of the upper die 5 is concave, and the bottom end face of the upper die 5 is an arc face.

Compared with the prior art, the utility model has the following advantages:

The sheet skeleton Liang Yazhi die in the structural form has the advantages that the structure is simple, the design is ingenious, the layout is reasonable, the special structure is designed aiming at various problems existing in the traditional stretch bending operation by using a stretch bending forming machine, the press bending operation of the sheet skeleton beam with the special-shaped section can be completed by only one-step pressing operation, and compared with the stretch bending operation, the deformation of constraint bending parts is followed due to the fact that the bearing parts (the upper die and the lower die) are arranged on two sides of the sheet skeleton, the forming precision of products is guaranteed and improved, and the yield is greatly improved; the pre-perforated thin plate skeleton beam is not broken and damaged in other forms in the pressing process, so that holes can be processed and arranged before bending and forming on the thin plate skeleton beam conveniently, the processing dimension is simplified, and the processing efficiency is greatly improved; in addition, when the sheet frame beam pressing die in the structural form is used for production, the sheet frame beam pressing die does not need to be like a stretch bending production mode: the two ends are reserved with too long process clamping ends, and then are cut off after being formed, so that the materials can be saved in a large ratio. The die has the advantages of simple manufacturing process and low manufacturing cost, so that the die is particularly suitable for popularization and application in the field and has very broad market prospect.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present utility model.

Fig. 2 is a front view of an embodiment of the present utility model.

Fig. 3 is a cross-sectional view taken along A-A in fig. 2.

Fig. 4 is a front view (sectional state) of an embodiment of the present utility model.

1, A support 2, a rotating shaft 3, a lower die 4, an upper die 5 and a framework beam 6.

Detailed Description

The following description of the embodiments of the utility model refers to the accompanying drawings, in which: as shown in fig. 1 to 4, a sheet-frame beam pressing mold comprises a base 1 as a foundation, two symmetrically distributed brackets 2 are arranged on the base 1, a lower mold 4 is rotatably supported on the brackets 2 through a rotating shaft 3, the section of the lower mold 4 is in a convex shape,

The die further comprises an upper die 5 which is matched with the two lower dies 4 at the same time, the section of the bottom end face of the upper die 5 is concave, and the bottom end face of the upper die 5 is an arc face.

The working process of the sheet frame beam pressing die provided by the embodiment of the utility model is as follows: in the initial state, the upper parts of the two lower dies 4 are empty, the skeleton beam 6 needing to be pressed is placed on the two lower dies 4, the cross section of the skeleton beam 6 is in a shape like a Chinese character 'ji', and is matched with the convex cross section of the lower dies 4,

After the skeleton beam 6 is put in place, under the action of the dead weight of the skeleton beam 6, the two lower dies 4 automatically swing to a collinear state to wait for the pressing operation,

The upper die 5 is connected to the end of the press, the press drives the upper die 5 to move downwards, two lower dies 4 are pressed simultaneously, the two lower dies 4 swing towards two directions respectively under the action of the lower pressure of the upper die 5 to form a state shown in fig. 4, at this time, the frame beam 6 is bent, and the radian of the bent position is matched with the radian of the cambered surface of the bottom end face of the upper die 5.

Claims (1)

1. A sheet metal skeleton roof beam embossing mold utensil, its characterized in that: the die comprises a base (1), two symmetrically distributed brackets (2) are arranged on the base (1), a lower die (4) is rotatably supported on the brackets (2) through a rotating shaft (3), the section of the lower die (4) is in a convex shape,

The die further comprises an upper die (5) which is matched with the two lower dies (4) at the same time, the section of the bottom end face of the upper die (5) is concave, and the bottom end face of the upper die (5) is a cambered surface.