CN108515118A - A kind of automobile exhaust system shell product shaping mould - Google Patents

Abstract

The invention provides a plastic mold for automobile exhaust system shell products, which includes an upper mold base and a lower mold base. A side trimming head is provided under the stripper plate, and a side trimming block is provided on the lower mold base, and the side trimming block is located directly below the side trimming head and is aligned with the side trimming head. The two sides of the side shaping block are provided with side shaping sliders, and the side shaping sliders and the side shaping inserting knife can move relatively. Compared with ordinary plastic molds, it has a movable slider, which is convenient for maintenance. Because of its adjustability, it is convenient and safe to operate, and can meet various processing conditions. The plastic slider is installed on the movable slider, which can solve the R-angle springback and material stacking caused by the arc shape of the part and no ribs. Otherwise, it is necessary to produce 3 sets of molds, which is a waste of manpower and material resources.

Description

A plastic mold for automobile exhaust system shell products

technical field

The invention relates to a plastic mold for automobile exhaust system shell products.

Background technique

Stamping processing is a production technology that uses the power of conventional or special stamping equipment to directly stamp the sheet or strip in the mold to be deformed and deformed, so as to obtain product parts with a certain shape, size and performance required by the drawings. Sheet metal, mold and equipment are the three elements of stamping processing. According to the stamping processing temperature, it is divided into hot stamping and cold stamping. The former is suitable for sheet metal processing with high deformation resistance and poor plasticity; the latter is carried out at room temperature and is a commonly used stamping method for thin plates. It is one of the main methods of metal plastic processing (or pressure processing), and it also belongs to material forming engineering technology. Forming processing is a processing method in which a workpiece is shaped with a forming tool that matches the final surface profile of the workpiece, and the part can be processed in general. However, parts for automobile exhaust system shell products are large in shape and arc-shaped. During production, there will be severe springback at the R angle, and the thickness of the outer edge material will overlap, so a shaping mold is required. Shaping dies are dies that correct parts into exact shape and size.

Contents of the invention

In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a plastic mold for automobile exhaust system shell products, improve efficiency and quality rate, and completely solve the problems of springback of the part and overlapping of two material thicknesses.

In order to achieve the above purpose and other related purposes, the present invention provides a plastic mold for automobile exhaust system shell products, including an upper mold base and a lower mold base, a stripping plate is provided under the upper mold base, and the upper mold base Side trimming knives are provided on both sides of the seat, a side trimming punch is provided under the stripper plate, and a side trimming block is provided on the lower mold base, and the side trimming block is located on the side of the side trimming punch. Directly below and coincident with the side trimming punch, side trimming sliders are provided on both sides of the side trimming block, and the side trimming sliders and the side trimming insert can move relatively.

Preferably, arc-shaped protrusions are provided on the side shaping block, and grooves matching the arc-shaped protrusions are arranged on both sides of the side shaping punch.

Preferably, an inclined surface is provided on the outer side of the side adjustment slider, and an inclined surface capable of moving with the inclined surface of the side adjustment slider is provided on the inner side of the side adjustment knife.

Preferably, a wear plate is provided under the side adjustment slider, and wear plates are provided on both sides of the side adjustment knife.

Preferably, several equal-height sets of screws and compression springs are installed between the upper mold base and the stripper plate.

Preferably, an outer guide column is provided on the outer side of the upper mold base, and an outer guide sleeve adapted to the outer guide column is provided at a position corresponding to the lower mold base.

Preferably, nitrogen springs are provided under the side adjustment slider.

Preferably, an upper cover plate is provided above the upper mold base, and side abutment blocks are provided on both sides of the lower mold base.

Preferably, a lower pad is provided under the lower mold base.

As mentioned above, the plastic mold for automobile exhaust system shell products provided by the present invention has the following beneficial effects: Compared with ordinary plastic molds, there is a movable slider, which is convenient for maintenance, and because it is adjustable, it is convenient and safe to operate , to meet various processing conditions. The plastic slider is installed on the movable slider, which can solve the R-angle springback and material stacking caused by the arc shape of the part and no ribs. Otherwise, it is necessary to produce 3 sets of molds, which is a waste of manpower and material resources.

Description of drawings

Fig. 1 is a structural schematic diagram of a plastic mold for an automobile exhaust system shell product.

1—upper cover plate, 2—upper mold base, 3—stripping plate, 4—side trimming knife, 5—side trimming punch, 6—side trimming block, 7—side trimming slider, 8—side trimming Block, 9—lower mold base, 10—lower foot, 11—equal height set screw, 12—compression spring, 13—inner guide column, 14—screw, 15—outer guide column, 16—wear plate, 17—nitrogen Spring, 18—product.

Detailed ways

The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

See Figure 1. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without any substantial change in the technical content.

As shown in Fig. 1, the present invention provides a kind of plastic mold for automobile exhaust system shell product, comprises upper mold base 2, lower mold base 9, and the bottom of described upper mold base 2 is provided with stripping plate 3, and described upper mold base 2 Both sides of the die base 2 are provided with side trimming inserts 4, the bottom of the stripper plate 3 is provided with a side trimming punch 5, and the lower die base 9 is provided with a side trimming block 6, and the side trimming block 6 Located directly below the side trimming punch 5 and coincident with the side trimming punch 5, side trimming sliders 7 are arranged on both sides of the side trimming block 6, and the side trimming sliders 7 are aligned with the side trimming block 6. Slot 4 can do relative movement.

In this embodiment, the side shaping block 6 is provided with arc-shaped protrusions, and both sides of the side shaping punch 5 are provided with grooves matching the arc-shaped protrusions.

In this embodiment, an inclined surface is provided on the outer side of the side adjustment slider 7 , and an inclined surface capable of moving with the inclined surface of the side adjustment slider 7 is provided on the inner side of the side adjustment insertion knife 4 .

In this embodiment, a wear-resistant plate 16 is provided under the side adjustment slider 7 , and wear-resistant plates 16 are provided on both sides of the side adjustment insert 4 .

In this embodiment, several contour sets of screws 11 and compression springs 12 are installed between the upper mold base 2 and the stripper plate 3 .

In this embodiment, an outer guide post 15 is provided on the outer side of the upper die base 2 , and an outer guide sleeve adapted to the outer guide post 15 is provided at a position corresponding to the lower die base 9 .

In this embodiment, a nitrogen gas spring 17 is provided below the side adjustment slider 7 .

In this embodiment, an upper cover plate 1 is provided above the upper mold base 2 , and side abutment blocks 8 are provided on both sides of the lower mold base 9 .

In this embodiment, a lower pad 10 is provided below the lower mold base 9 .

Described patrix comprises upper cover plate 1, and described upper cover plate 1 is provided with upper mold base 2, and described upper mold base 2 is provided with stripper plate 3, described upper mold base 2 and stripper plate 3 A side trimming knife 4 is installed, a side trimming punch 5 is provided with a contour set screw 11 and a compression spring 12 in the upper die base 2 and the stripper plate 3, and an inner guide post 13 is arranged in the upper die base 2 , Outer guide post 15, there are fixing screws in the upper mold base 2, the upper mold will be formed by connecting the upper cover plate 1 with the stripping plate 3;

The shape of the lower mold matches the inner surface of the upper mold space, the lower mold includes a lower mold base 9, the lower mold base 9 is provided with a lower foot 10, and a fixing screw hole is installed in the lower foot 10 for connecting Lower mold holder 9. Described lower die base 9 is provided with side rectifying block 8, and described lower die base 9 is equipped with side rectifying slide block 7. There is a lower guide column, which together form a lower mold;

When stamping, the power device lifts the upper die to separate the upper die from the lower die. Under the action of the power device, the side trimming knife 4 punches vertically downwards, squeezing the side trimming slider 7 to the middle, and the side trimming block 8. Limit the position of the side trimming knife 4, and the side trimming block 6 squeezes the product 18 under the action of the side trimming slider 7, and the left and right sides of the product 18 are formed and flanged flat to obtain the parts we need.

To sum up, the present invention provides an automobile exhaust system, which improves efficiency and quality rate, completely solves the problem of springback of the part and the overlap of two material thicknesses, and the appearance of the product is neat and beautiful, and the cost rate is also greatly reduced. The plastic surgery that originally required 3 sets of molds now requires only one set of molds, which saves manpower and material resources and improves the economy. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims (9)

1. A plastic mold for automobile exhaust system shell products, characterized in that: it comprises an upper mold base and a lower mold base, a stripping plate is provided below the upper mold base, and both sides of the upper mold base are provided with Side trimming inserting knife, a side trimming punch is provided under the stripper plate, a side trimming block is provided on the lower mold base, and the side trimming block is located directly below the side trimming punch and is connected to the The side trimming punch matches, and the side trimming sliders are arranged on both sides of the side trimming block, and the side trimming sliders and the side trimming inserts can move relatively. 2. A plastic mold for automobile exhaust system shell products according to claim 1, characterized in that: said side shaping block is provided with arc-shaped protrusions, and both sides of said side shaping punch are provided with The curved protrusions match the grooves. 3. A plastic mold for automobile exhaust system shell products according to claim 2, characterized in that: the outside of the side adjustment slider is provided with a slope, the inside of the side adjustment knife is provided with a Describe the inclined planes on which the inclined planes of the side adjustment slider move mutually. 4. A plastic mold for automobile exhaust system shell products according to claim 3, characterized in that: a wear-resistant plate is provided under the side trimming slider, and both sides of the side trimming knife are provided with Wear plate. 5. A plastic mold for automobile exhaust system shell products according to claim 1, characterized in that: several contour sets of screws and compression springs are installed between the upper mold base and the stripper plate. 6. A plastic mold for automobile exhaust system shell products according to claim 1, characterized in that: the outer side of the upper mold base is provided with an outer guide column, and the position corresponding to the lower mold base is provided with a Outer guide bushing for the above outer guide post. 7. A plastic mold for automobile exhaust system shell products according to claim 1, characterized in that: a nitrogen spring is provided under the side trimming slider. 8. A plastic mold for automobile exhaust system shell products according to claim 1, characterized in that: an upper cover is provided above the upper mold base, and side trimmers are provided on both sides of the lower mold base. By block. 9 . The plastic mold for automobile exhaust system shell products according to claim 1 , wherein a lower foot is provided under the lower mold base. 10 .