CN210253846U

CN210253846U - Forming die of car silence board of double-deck region of utensil

Info

Publication number: CN210253846U
Application number: CN201920931091.9U
Authority: CN
Inventors: 李继针; 王计省; 佘龙飞; 周亚峰
Original assignee: Wuxi Baozhong Technology Co Ltd
Current assignee: Wuxi Baozhong Technology Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-04-07
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a forming die of double-deck regional car silence of utensil, this forming die include mould, lower mould and blank holder, the blank holder can set up with going up and down in the periphery of lower mould, a serial communication port, the lower mould is including the shaping terrace die that is used for the main backplate of shaping, it attaches the board shaping region to have the lower that is used for the shaping to attach the board on the shaping terrace die, go up the mould including the shaping die that is used for the main backplate of shaping, it attaches the board shaping region to have the shaping on attaching the board on the shaping die. The forming die of the automobile silencing plate with the double-layer area can realize one-step forming of the automobile silencing plate with the double-layer area. The processing precision of the automobile silencing plate is improved to a certain extent.

Description

Forming die of car silence board of double-deck region of utensil

Technical Field

The utility model relates to an automobile mold especially relates to a forming die of car silence board of double-deck region of utensil.

Background

The car body is assembled by steel plate structure or other materials to form a closed space and a carriage, and each car type can generate different noises due to different original factory design concepts, such as engine design, shock absorption system, air intake and exhaust modes, tightness of car door and car body, or static state or different road surface advancing state, and the sound insulation treatment of the car is required by the uncomfortable sound, tinnitus, fatigue or interference of original pleasant sound effect caused by steel plate, car body resonance, sound amplification and excessive noise. Therefore, the original factory design and assembly conditions are adopted, various shock absorption, sound insulation and absorption materials are added, unnecessary environmental noise in the carriage is eliminated to the minimum state, namely, the automobile sound insulation is achieved, the host factory designs and develops a noise reduction structure, a double-layer material structure wraps the outer side of an engine, the noise of the automobile engine is absorbed, the automobile requires light weight and reduces unnecessary part structures, double-layer plate processing needs to be carried out at a specific position, and other areas are single-layer plates.

At present, most of the processing methods of the automobile silencing plate with the double-layer area are to respectively process the main guard plate and the auxiliary plate arranged on the main guard plate, and then press the two plates together through a mold device. The processing mode obviously has the defects of low processing efficiency, complicated processing steps and poor processing precision.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a forming die of car silence board of double-deck region of utensil to there is the low problem poor with the machining precision of machining efficiency in the car silence board that has double-deck region among the solution prior art.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a forming die of car silence board of double-deck region of utensil, its includes mould, lower mould and blank holder, the blank holder can set up with going up and down in the periphery of lower mould, wherein, the lower mould is including the shaping terrace die that is used for shaping main backplate, it attaches the board shaping region to have the lower that is used for the shaping to attach the board on the shaping terrace die, go up the mould including the shaping die that is used for shaping main backplate, it attaches the board shaping region to have the shaping on the shaping die to attach the board.

As a further improvement of the scheme, the edge of the inner hole of the blank holder is provided with a circle of convex ribs so as to ensure the forming quality of the automobile silencing plate.

As a further improvement of the scheme, a plurality of limiting columns used for adjusting the size of the part before the main guard board is molded are arranged on the end face of the blank holder.

As a further improvement of the scheme, a plurality of positioning columns extend downwards around the upper die, and positioning grooves with corresponding numbers are formed in the edge pressing ring in a matched mode through the positioning columns.

As a further improvement of the scheme, the main bodies of the upper die, the lower die and the blank holder are all designed in a hollow structure, a main body supporting structure is formed by a plurality of reinforcing plates, and lightening holes are formed in the reinforcing plates.

The beneficial effects of the utility model are that, compare with prior art the forming die of the car silence board of utensil double-deck region can realize the one shot forming of the car silence board of utensil double-deck region. Not only the structure is simple, but also the design is ingenious; and the processing is convenient, the processing efficiency is high, and the processing precision of the automobile silencing plate is improved to a certain extent.

Drawings

Fig. 1 is a schematic perspective view of a forming mold for an automotive acoustic panel having a double-layer region according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a lower mold and a blank holder of a forming mold for an automotive acoustic panel having a double-layer region according to an embodiment of the present invention;

fig. 3 is a bottom view of an upper mold of a forming mold for an automotive acoustic panel having a double-layer region according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a processed main guard board of a processing method of an automobile noise board with a double-layer area according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an auxiliary plate of a method for processing an automotive acoustic panel having a double-layer region according to an embodiment of the present invention after pre-processing;

fig. 6 is a schematic structural diagram of the bonded auxiliary plates of the method for processing the car acoustic panel having the double-layer region according to the embodiment of the present invention.

In the figure:

1. an upper die; 2. a lower die; 3. a blank holder; 4. a reinforcing plate; 5. forming a male die; 6. a lower attached plate molding area; 7. forming a female die; 8. an upper attached plate molding area; 9. a rib; 10. a limiting column; 11. a positioning column; 12. positioning a groove; 13. a main guard plate material sheet; 14. a notch; 15. an accessory plate material sheet; 16. a profiled hole; 17. avoiding the hole.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 3, in the present embodiment, a forming mold for an automotive soundboard with a double-layer area includes an upper mold 1, a lower mold 2 and a blank holder 3, wherein the blank holder 3 is disposed at the periphery of the lower mold 2 in a lifting manner, main bodies of the upper mold 1, the lower mold 2 and the blank holder 3 are all designed to be hollow structures, a main body supporting structure is composed of a plurality of reinforcing plates 4, and weight-reducing holes are formed in the reinforcing plates 4. The lower die 2 comprises a forming male die 5 for forming a main protection plate, a lower attached plate forming area 6 for forming an attached plate is arranged on the forming male die 5, the upper die 1 comprises a forming female die 7 for forming the main protection plate, an upper attached plate forming area 8 for forming the attached plate is arranged on the forming female die 7, and during forming, the forming male die 5 and the forming female die 7 form and fix the attached plate on the main attached plate through the upper attached plate forming area 8 and the lower attached plate forming area 6 while the main protection plate is formed.

The edge of the inner hole of the blank holder 3 is provided with a circle of convex ribs 9, and the defects of strain or wrinkling and the like can be prevented through the convex ribs 9 during forming so as to ensure the forming quality of the automobile silencing plate. The end face of the blank holder 3 is provided with a plurality of limiting columns 10 used for adjusting the size of the part before the main guard board is formed.

The periphery of the upper die 1 extends downwards to form a plurality of positioning columns 11, and positioning grooves 12 with corresponding numbers are formed in the blank holder 3 by matching the positioning columns 11.

Referring to fig. 4 to 5, the product requirements are: the size 1388 of the main guard plate part is 421 MM 230 MM, the offset of the auxiliary plate relative to the main guard plate digital-analog position product is +/-2.0 MM, the main guard plate side line tolerance is +/-0.5 MM, and the product is required to have no crush injury and no crack. The specific forming method of the forming die of the automobile silencing plate with the double-layer area comprises the following steps:

the method comprises the following steps: preprocessing a main guard plate: determining the size of the main guard plate material sheet 13 through CAE analysis, as shown in fig. 4, fig. 4 is a schematic diagram of the pre-processed main guard plate of the processing method of the automotive acoustic panel with the double-layer region provided by the embodiment of the present invention, where the overall length of the main guard plate material sheet 13 is 1640 mm, the overall width is 680 mm, and two corners of one side of the main guard plate material sheet 13 along the length direction are removed, two sides of the main guard plate material sheet 13 along the length direction are provided with four notches 14 for adjusting the dimensions of the parts, and each side is provided with two triangular notches 14;

step two: preprocessing an attached plate: determining the size of the attached plate material sheet 15 through CAE analysis, as shown in fig. 5, fig. 5 is a schematic diagram of the pre-processed attached plate of the processing method of the automobile acoustic panel with the double-layer region according to the embodiment of the present invention, where the overall length of the attached plate material sheet 15 is 837 mm, and the overall width is 196 mm; two special-shaped holes 16 are processed on the auxiliary plate material sheet 15, and a plurality of avoidance holes 17 which are matched with the hole positions on the main guard plate are processed on the auxiliary plate material sheet 15;

step three: and (3) adhering the attached plates: through early-stage CAE simulation analysis, the position of a part before forming relative to a main guard plate is found accurately, an adhesive is coated on an auxiliary plate material sheet 15, the auxiliary plate material sheet 15 is adhered to the corresponding position on a main guard plate material sheet 13, and the main guard plate material sheet is placed for 3 hours at normal temperature, the adhesive can enable the material sheets to flow while adhering two material sheets together, please refer to fig. 6, and fig. 6 is a structural schematic diagram after the auxiliary plate is adhered in the processing method of the automobile silencing plate with the double-layer region provided by the specific embodiment of the invention;

step four: and (3) stretching and forming: two tablets that will bond together are placed in foretell double-deck regional automobile silence's of utensil forming die, under the initial condition, blank holder 3 is in the state of floating, two tablets are placed on blank holder 3, hold in the palm two tablets by blank holder 3 and level, will go up mould 1 and blank holder 3 through the punch press and compress tightly two tablets, then go up mould 1 and blank holder 3 and descend simultaneously together and carry out one-shot stretch forming to two tablets, the stability of tablet has been guaranteed, guarantee that tensile in-process tablet does not corrugate, do not ftracture.

The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a forming die of car silence board of double-deck region of utensil, its includes mould, lower mould and blank holder, the blank holder can set up with going up and down in the periphery of lower mould, a serial communication port, the lower mould is including the shaping terrace die that is used for shaping main backplate, it attaches the board shaping region to have the lower that is used for the shaping to attach the board on the shaping terrace die, go up the mould including the shaping die that is used for shaping main backplate, it attaches the board shaping region to have the shaping on attaching the board on the shaping die.

2. The mold for molding automotive acoustic panel having a double-layer region according to claim 1, wherein a circle of convex ribs is disposed at an edge of an inner hole of the blank holder.

3. The mold for molding automotive soundboard according to claim 1 wherein the binder has a plurality of spacers for adjusting the dimensions of the parts before molding the main fender.

4. The mold for molding automotive soundboard according to claim 1, wherein a plurality of positioning posts extend downwardly around the upper mold, and a corresponding number of positioning slots are provided on the blank holder in cooperation with the positioning posts.

5. The mold for molding the automotive soundboard according to claim 1, wherein the upper mold, the lower mold and the blank holder are all designed with a hollow structure, a plurality of reinforcing plates form a main body supporting structure, and the reinforcing plates are provided with lightening holes.