CN223616580U - Bending composite die used in heat shield production - Google Patents

Abstract

This utility model discloses a bending composite mold for heat insulation cover production, comprising an upper mold structure and a lower mold structure. The upper mold structure includes an upper clamping plate, an upper template, a balance block, a third spring, a pressure block, and an upper bending block, which slides obliquely along a first inclined sliding surface. The lower mold structure includes a support base, a limiting block, a lateral bending block, a second spring, a connecting block, a first spring, a spring core, and a fourth spring; the lateral bending block slides obliquely along a second inclined sliding surface; the spring core moves up and down relative to the connecting block. This improves product quality, reduces costs, and increases production efficiency. The oblique sliding structure of the upper bending block solves the problem of parts being unable to be removed after bending.

Description

Bending composite die used in heat shield production

Technical Field

The utility model relates to the technical field of cold stamping dies, in particular to a bending composite die used in heat shield production.

Background

The bending die is one of the work types with higher technical content in sheet metal machining, and although part of products in modern machining are machined by adopting numerical control equipment, the machining cost is high, the efficiency is low, and along with the change of market demands and the progress of technology, the design and the manufacture of the bending die also continuously provide higher requirements.

At present, the conventional working procedures of the engine heat shield die comprise the steps of blanking 22, bending 23, curling 24 and pressing 25, wherein each working procedure is completed by one set of die, one oil press and one operator, the quality of the product is poor, deformation and distortion of the plate are increased in the process of bending for many times, certain errors are introduced due to conversion among working procedures in the process of operation and processing for many times, the delivery quality of the product is directly affected by accumulation of the errors, the cost is high, the number of the working procedure multi-phase dies is large, the research and development cost of the die is high, the oil press is large, the equipment maintenance and loss cost is increased, the operators are large, the labor cost of the working procedures is increased, the production efficiency is low, and the product is required to be processed in a circulation mode one by one working procedure in the process of product processing production, and the production cycle of the product is long.

The conventional bending die cannot meet the requirements of the market on cost, efficiency and quality, and in order to process a high-quality heat shield which meets the market requirements, a bending composite die suitable for heat shield production needs to be developed and designed.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provide a bending composite die used in the production of a heat shield.

The utility model provides a technical scheme that a bending composite die used in heat shield production comprises an upper die structure and a lower die structure, and is characterized in that the upper die structure comprises an upper clamping plate, wherein an upper die plate is arranged on the upper clamping plate, a balance block is arranged below the upper die plate, a third spring mounting hole is arranged in the upper clamping plate, and a Kong Nashe third spring is arranged in the third spring;

The lower die structure comprises a support base, a limit block is arranged on the support base, a lateral bending block is arranged in the support base and slides obliquely along a second oblique sliding surface, a second spring mounting hole is formed in the lateral bending block and is used for mounting Kong Nashe a second spring, the lateral bending block is connected with a connecting block in a clearance fit mode, a first spring mounting hole is formed in the connecting block and is used for mounting Kong Nashe a first spring, the connecting block is connected with a material core in a clearance fit mode, a fourth spring mounting hole is formed in the material core, a fourth spring is arranged in the fourth spring mounting hole, and the material core moves up and down relative to the connecting block.

Further, the elastic material core is matched with the pressing block and the upper bending block, and the heat shield is molded, positioned and fixed between the upper bending block and the lateral bending block under the action force of the lateral bending block.

The utility model has the beneficial effects that:

The product quality is improved, two working procedures are completed in one die, the deformation and the distortion of the plate are reduced in the bending process, the conversion times among the working procedures are reduced, and the error accumulation is reduced, so that the error in the processing process is avoided, and the delivery quality of the product is improved;

2. The cost is reduced, only one set of die is required to be developed in two working procedures of bending and curling, so that the design and manufacturing development cost of the die is reduced, the number of oil presses is reduced, the equipment maintenance and loss cost is reduced, the number of operators is reduced, and the manual processing cost of the process working procedures is reduced;

3. the production efficiency is improved, two processes of bending and curling are completed in one stamping process, the product processing process is reduced, and the product processing period is shortened;

4. the upper bending block adopts an oblique sliding structure, so that the problem that a piece cannot be taken after bending is solved.

Drawings

FIG. 1 is a schematic diagram of a closed-mode structure of the present utility model;

FIG. 2 is a schematic diagram of the operational process state structure of the present utility model;

FIG. 3 is a schematic diagram of an open mold configuration of the present utility model;

FIG. 4 is a schematic diagram of a prior art process;

fig. 5 is a schematic diagram of the processing process of the present utility model.

In the figure, 1, an upper template, 2, an upper clamping plate, 3, a pressing block, 4, an upper bending block, 5, a heat shield, 6, a spring core, 7, a connecting block, 8, a support base, 9, a balance block, 10, a limiting block, 11, a lateral bending block, 12, a first inclined sliding surface, 13, a first spring, 14, a first spring mounting hole, 15, a second spring, 16, a second spring mounting hole, 17, a third spring mounting hole, 18, a third spring, 19, a second inclined sliding surface, 20, a fourth spring, 21, a fourth spring mounting hole, 22, blanking, 23, bending, 24, curling, 25, pressing, 26 and bending are compounded.

Detailed Description

For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.

As shown in fig. 1, 2 and 3, a bending composite die for heat shield production comprises an upper die structure and a lower die structure;

The upper die structure comprises an upper clamping plate 2, an upper die plate 1 is fixed above the upper clamping plate 2 by using a screw, a balance block 9 is fixed below the upper die plate 1 by using a bolt, and the balance block 9 has the function of balancing the die pressure when the die bends downwards and pushing a lateral bending block 11 to slide obliquely; the upper bending block 4 adopts Cr12Mov die steel, has higher wear resistance, after the die bending is finished, the acting force of the third spring 18 pushes the upper bending block 4 to slide obliquely along the first oblique sliding surface 12 when the die goes up, so that the heat shield 5 is ensured to be taken out smoothly after being bent;

The lower die structure comprises a support base 8, a limiting block 10 is fixed above the support base 8 and used for limiting the return position of a lateral bending block 11, the lateral bending block 11 is installed in the support base 8, high-strength die steel is used for SKD11, when the die works, the lateral bending block 11 slides obliquely along a second oblique sliding surface 19 under the downward thrust of a balance block 9, a second spring installation hole 16 is formed in the lateral bending block 11, a second spring 15 is installed in the second spring installation hole 16, the lateral bending block 11 is connected with a connecting block 7 in a clearance fit mode, a first spring installation hole 14 is formed in the connecting block 7, a first spring 13 is installed in the first spring installation hole, the acting force of the second spring 15 pushes the lateral bending block 11 to slide obliquely along the second oblique sliding surface 19 and return to a designed initial position when the die returns, a connecting block 7 is connected with a spring core 6 in a clearance fit mode, a fourth spring installation hole 21 is formed in the spring installation hole 21, when the die returns, the fourth spring 20 pushes the spring core 6 to push the spring core 6 to move upwards, the spring core 6 moves upwards, the spring 7 moves downwards relative to the spring installation hole 4, and the lateral bending block 4 is fixed between the lateral bending block 4 and the lateral bending block 11 and the upper die.

As shown in fig. 5, the process scheme of the utility model comprises blanking 22, bending and compounding 26 and pressing 25, wherein three working procedures are completed, and each working procedure corresponds to one set of die.

The utility model relates to a bending composite die used in heat shield production, which is characterized in that an upper die descends, a flat blank is positioned on a material spring 6, an upper bending block 4 slides obliquely along a first oblique sliding surface 12 synchronously under the descending pressure of the upper die until the material spring 6 contacts an upper clamping plate 2, the material spring 6 descends synchronously under the pressure of the upper die, a heat shield 5 bends at right angles, the material spring 6 descends to be in full contact with the connecting block 7, a balance block 9 pushes a lateral bending block 11 to slide obliquely along a second oblique sliding surface 12, the material spring 6 and the connecting block 7 descend synchronously, the lateral bending block 11 and the upper bending block 4 cooperate to fold out a negative angle of the heat shield 5, the heat shield 5 is bent, the upper die descends to a limit position and then ascends synchronously under the acting force of a first spring 13, a second spring 15 and a fourth spring 20, the material spring 6, the connecting block 7 and the lateral bending block 11 stop ascending when the material spring 6 ascends to a design position, the upper die continues ascending, the upper die 4 ascends synchronously under the force of the first spring 12 and the fourth spring 20, and the lateral bending block 18 ascends to the limit position along the first oblique sliding surface 4, and the heat shield 5 is separated continuously, and the heat shield is bent continuously and the heat shield is bent and repeatedly ascended to the limit position along the first oblique sliding surface 4.

It should be understood that technical features that are not specifically described in the present specification belong to the prior art. Although the embodiments of the present utility model have been described in connection with the accompanying drawings, the present utility model is not limited to the above-described embodiments, which are intended to be illustrative only and not limiting, and many more forms can be made by those of ordinary skill in the art without departing from the spirit of the utility model and the scope of the appended claims, which are to be construed as falling within the scope of the utility model.

Claims (2)

1. A bending composite die used in heat shield production comprises an upper die structure and a lower die structure, and is characterized in that the upper die structure comprises an upper clamping plate (2), an upper die plate (1) is arranged on the upper clamping plate (2), a balance block (9) is arranged below the upper die plate (1), a third spring mounting hole (17) is formed in the upper clamping plate (2), a third spring (18) is arranged in the third spring mounting hole (17), a pressing block (3) is arranged below the upper clamping plate (2), the pressing block (3) is in clearance fit with an upper bending block (4), and the upper bending block (4) obliquely slides along a first oblique sliding surface (12);

The lower die structure comprises a support base (8), a limiting block (10) is arranged on the support base (8), a lateral bending block (11) is arranged in the support base (8), the lateral bending block (11) slides obliquely along a second oblique sliding surface (19), a second spring mounting hole (16) is formed in the lateral bending block (11), a second spring (15) is arranged in the second spring mounting hole (16), the lateral bending block (11) is connected with a connecting block (7) in a clearance fit mode, a first spring mounting hole (14) is formed in the connecting block (7), a first spring (13) is arranged in the first spring mounting Kong Nashe, the connecting block (7) is connected with a material core (6) in a clearance fit mode, a fourth spring mounting hole (21) is formed in the material core (6), a fourth spring (20) is arranged in the fourth spring mounting hole (21), and the material core (6) moves up and down relative to the connecting block (7).

2. A bending composite mould for heat shield production according to claim 1, characterized in that the elastic material core (6) is matched with the pressing block (3) and the upper bending block (4), and the heat shield (5) is formed, positioned and fixed between the upper bending block (4) and the lateral bending block (11) under the action force of the lateral bending block (11).