CN201300175Y

CN201300175Y - Stretching and forming die for deep stretching component

Info

Publication number: CN201300175Y
Application number: CNU2008201460619U
Authority: CN
Inventors: 黄哲潘
Original assignee: Xiamen Longshanyuan Traffic Equipment Co Ltd
Current assignee: Xiamen Longshanyuan Traffic Equipment Co Ltd
Priority date: 2008-10-24
Filing date: 2008-10-24
Publication date: 2009-09-02
Anticipated expiration: 2018-10-24

Abstract

The utility model discloses a stretching and forming die for a deep stretching component, which comprises an upper die, a lower die, an upper material pressing plate, a lower material pressing plate and an ejector rod. A female die in the utility model is characterized in that the diameter of an inner cavity takes the shape of a ladder which decreases step by step, the male die is made of a plurality of die sleeves sleeved on middle kernels in sequence, the middle kernels, the outer diameters of the die sleeves and the female die decrease the diameter matching of the inner cavity in the shape of a ladder step by step, in this way, when the stretching component almost achieves the limit of material stretching operation, auxiliary up-thrust force is generated at the lower part, during the period of simultaneously actuating the upper force and the lower force, the heat energy generated by friction between the upper die and the lower die and the material can ensure that the flowing process of the material is smoother, and the deep stretching process is achieved at one time, thereby completing the production of canister bodies.

Description

Drawing shaping die of deep drawing part

Technical field

The utility model relates to a kind of cold punching die, particularly relates to a kind of drawing shaping die of deep drawing part.

Background technology

Canister is to be under the jurisdiction of the gasoline evaporation control system, this system is that fuel-steam escapes into atmosphere behind the engine stoping operation, can be referred to as " gall-bladder " of vapour, locomotive, its effect is that steam is introduced burning and prevented to evaporate in the atmosphere, not only reduce discharging (waste gas), and reduced oil consumption.And tank body is one of critical component of canister, and it manufactures the technology of processing, performance and the life-span that quality directly has influence on canister.The life-span of normal canister should still as because of processing technology falls behind, cause the tank intensity deficiency more than 50,000 kilometers, in the course of the work behind high temperature, hyperbar concussion fracture immersion oil, can scrap at once, directly influence the performance and the life-span of engine, the most important thing is direct atmosphere pollution.

Traditional tank body processing technology is because of technical deficiency, the following three kinds of processing methods of basic employing: 1, adopt many group moulds to finish the pull and stretch of differing heights size respectively, because this kind processing method stretches for being interrupted, can cause material more and more harder (flow harden principle), easily drawing crack, wrinkling bad, and spent manpower and time cost are higher.2, take iron plate to be rolled into the garden tubbiness after, weld again, so solder technology requires high and intensity is difficult to guarantee, has easily that weld seam breaks, welding hole is bad, expends the cost height.3, adopt more expensive raw material special engineering plastics (PE polyethylene), utilization plastics mould high-temperature molding.In recent years, because the develop rapidly of global economy and auto industry, automobile has become tool on people's the ordinary traffic, because the widely-used generation large quantity of exhaust gas of automobile causes air pollution, global climate to heat up, therefore, international environmental protection organization is more and more harsher for the requirement of automobile emission standard, and then the capability and performance (high temperature resistant, shock-resistant) of canister is proposed higher requirement.

The processing of conventional carbon tank (adopting multimode to stretch) has following characteristics:

1, adopt mould totally 6 procedures (cutting edge in the stretching of 4 roads, 1 road moulding, 1 road) production, greatly to little, integer is carried out in the operation that stretches highly from low to high, successively to operating principle again from external diameter, cuts edge at last, needs to be equipped with operating personnel 6 people.

2,4 road stretching operations are interruption (be about 32 seconds the break time from last work step to following work step) production, and material its material after repeatedly stretching more and more harder (material ductility reduction---flow harden principle) is easily broken.

3, adopt the production of 600T hydraulic press, equipment cost is high, and its operating principle is extended (go up molding pressure, counterdie cylinder balancing, take off material) for the unidirectional power punching press, and its quality instability (crease easily, break), production efficiency are low, and each process time is for being about 75 seconds.

4, the production operation place is an open environment, and semi-finished product easily touch dust granules in the process, adhere to material surface, causes the damage of mould R angle in drawing process, and then pulls product, causes product rejection.

Because it is a lot of influence the factor that tank body processes, and these weave ins often, wherein the performance of the structure of the flow process of processing technology, mould, production equipment etc. is a principal element.Certainly, in the multimode production operation, it then is maximum being interrupted stretching operation (flow harden) influence, we can say that processing technology is depended in the processing technology intensity quality assurance of tank body to a great extent.In the processing technology of existing unidirectional power equipment coideal is that one one-off drawing, integer, side cut one mould are finished, yet this situation does not in fact exist, particularly integrally stretching is once finished, the limit of stretch restriction of height 249mm because product stretches, can't accomplish in theory, be difficult to the state of accomplishing that the one-off drawing operation is finished thus.

The utility model content

But the purpose of this utility model is to provide a kind of one-off drawing operation to finish the drawing shaping die of deep drawing part of deep drawn product.

For achieving the above object, technical solution of the present utility model is:

The utility model is a kind of drawing shaping die of deep drawing part, and it comprises upper die and lower die, last holding pad, following holding pad, push rod; The counterdie that is installed in the patrix on the base and is installed in down on the base is oppositely arranged, and last holding pad is installed in the patrix lower end, and following holding pad is socketed on the counterdie and can moves up and down at the center line of the effect lower edge of push rod counterdie, leans with following holding pad; Described patrix is a die, and its intracavity diameter is dwindle step by step stepped; Described counterdie is a punch, and it is made of middle benevolence, a plurality of die sleeve, and during a plurality of die sleeves are socketed in successively on the benevolence, the diameter that the external diameter of middle benevolence, a plurality of die sleeves and die dwindle stepped inner chamber step by step cooperates also can stretch into this each stepped inner chamber respectively.

Described patrix is made of three stepped inner chambers that dwindle step by step; Described counterdie is made of middle benevolence, first die sleeve, second die sleeve, and on the benevolence, second die sleeve was socketed on first die sleeve during first die sleeve was socketed in; The middle benevolence of described counterdie cooperates with patrix minimum diameter inner chamber.

Described patrix is made up of first patrix, first Connection Block, second patrix, second Connection Block, the 3rd patrix; First patrix connects second patrix by first Connection Block, second patrix connects the 3rd patrix by second Connection Block, the lower end of first patrix connects goes up holding pad, and the upper end of the 3rd patrix is fixed on the base, and first patrix, second patrix, the 3rd patrix intracavity diameter are and dwindle shape step by step; Described first Connection Block and second Connection Block are the member that goes in ring, and nose end is the circular arc chamfering in it.

After adopting such scheme, adopt many group moulds at commonly using product processing, finish the pull and stretch of differing heights size respectively, material stretches through repeatedly being interrupted, can cause the hardness of material to improve, influence the defective of the ductility of material extending, the utility model adopts repeatedly and stretches, the moulding engineering combines in the structural design of a mould, promptly, die of the present utility model is that intracavity diameter is dwindle step by step stepped, during being socketed in successively by a plurality of die sleeves, makes on the benevolence by punch, middle benevolence, the external diameter of a plurality of die sleeves cooperates with the diameter that die dwindles stepped inner chamber step by step, like this, tensioning member produces complementary upwards thrust by the below when being about to arrive the material extending and the limit, during the last start simultaneously of exerting oneself, the heat energy of mould and material friction generation can allow the material process of flowing more smooth and easy up and down, once finishes and takes out processing deeply, and then finish the production of canister tank body.

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Description of drawings

Fig. 1 is the utility model structure chart;

Fig. 2 is that the utility model is protruding, the installation diagram of die;

Fig. 3 is the structural representation of the utility model punch;

Fig. 4 A, Fig. 4 B, Fig. 4 C, Fig. 4 D, Fig. 4 E be the utility model blowing matched moulds, stretch for the first time, stretch for the second time, stretch for the third time, the integer schematic diagram;

Fig. 5 A, Fig. 5 B, Fig. 5 C, Fig. 5 D are that the utility model stretches for the first time, stretches for the second time, stretches for the third time, the stamping parts schematic diagram after the integer.

The specific embodiment

As shown in Figure 1, the utility model is a kind of drawing shaping die of deep drawing part, and it comprises patrix 1, counterdie 2, last holding pad 3, following holding pad 4, push rod 5.

Being installed in patrix 1 on the base 10 and the counterdie 2 that is installed in down on the base 20 is oppositely arranged, last holding pad 3 is installed in patrix 1 lower end, following holding pad 4 is socketed on the counterdie 2 and can moves up and down at the center line of the effect lower edge of push rod 5 counterdie 2, leans with following holding pad 4, compresses the edge of batching.

With reference to shown in Figure 2, described counterdie 2 is a punch 2 as Fig. 3, and it is made of middle benevolence 21, first die sleeve 22, second die sleeve 23.On the benevolence 21, second die sleeve 23 was socketed on first die sleeve 22 during first die sleeve 22 was socketed in; The external diameter of middle benevolence 21, first die sleeve 22, second die sleeve 23 cooperates with the diameter that first patrix 11, second patrix 13 and the 3rd patrix 15 of die 1 dwindle stepped inner chamber step by step, and can stretch into this corresponding stepped inner chamber respectively, as, middle benevolence 21 cooperates with the 3rd patrix 15 inner chambers of patrix 1 minimum diameter and can stretch into the 3rd patrix 15 inner chambers.

As shown in Figure 2, described patrix 1 is a die, is made up of first patrix 11, first Connection Block 12, second patrix 13, second Connection Block 14, the

3rd patrix

15 and 16 five equilibrium patrixes 16.The intracavity diameter of first patrix 11, second patrix 13 and the 3rd patrix 15 is dwindle step by step stepped, i.e. first patrix, 11 intracavity diameter maximums, the 3rd patrix 13 intracavity diameter minimums.The upper end that first patrix 11 is gone up holding pad 3, the three patrixes 15 by first Connection Block, 12 connections, second patrix, 13, the second patrixes 13 by the lower end connection of second Connection Block, 14 connections the 3rd patrix, 15, the first patrixes 11 is fixed on the base 10; Described first Connection Block 12 and second Connection Block 14 are the member that goes in ring, and nose end is circular arc chamfering R in it.Described 16 five equilibrium patrixes 16 are nested with at the 3rd patrix 15 inner chambers, and it cooperates with middle benevolence 21 on the punch 2, are used for forming gauffer at workpiece bottom.

The course of work of the present utility model:

1, blowing flanging (shown in Fig. 4 A), following holding pad 4 moves up under the effect of push rod 5, leans at last holding pad 3, compresses the material limit;

2, stretching (shown in Fig. 4 B) for the first time.Counterdie 2 moves up under the effect of oil cylinder, and second die sleeve 23 on the counterdie 2 stretches into first patrix, 11 inner chambers on the patrix 1, finishes for the first time to stretch, and stamping parts 90 is shape shown in Fig. 5 A.

3, stretching (shown in Fig. 4 C) for the second time.Counterdie 2 moves up under the effect of oil cylinder, and first die sleeve 22 on the counterdie 2 stretches into second patrix, 13 inner chambers on the patrix 1, finishes for the second time to stretch, and stamping parts 90 is shape shown in Fig. 5 B.

4, stretching (shown in Fig. 4 D) for the third time.Counterdie 2 moves up under the effect of oil cylinder, and the middle benevolence 21 on the counterdie 2 stretches into the 3rd patrix 15 inner chambers on the patrix 1, finishes the I3 time stretching, and stamping parts 90 is shape shown in Fig. 5 C.

5, integer and formation gauffer (shown in Fig. 4 E).16 five equilibrium patrixes 16 cooperate with middle benevolence 21 on the punch 2, form gauffer at workpiece bottom, and stamping parts 90 is shape shown in Fig. 5 D.

Emphasis of the present utility model just is: die is designed to intracavity diameter and is dwindle step by step stepped, makes on the benevolence during punch is socketed in successively by a plurality of die sleeves.The die sleeve number of punch and the progression of die can be determined according to the degree of depth of the stamping parts of required stretching.

Claims

1, a kind of drawing shaping die of deep drawing part, it comprises upper die and lower die, last holding pad, following holding pad, push rod; The counterdie that is installed in the patrix on the base and is installed in down on the base is oppositely arranged, and last holding pad is installed in the patrix lower end, and following holding pad is socketed on the counterdie and can moves up and down at the center line of the effect lower edge of push rod counterdie, leans with following holding pad; It is characterized in that: described patrix is a die, and its intracavity diameter is dwindle step by step stepped; Described counterdie is a punch, and it is made of middle benevolence, a plurality of die sleeve, and during a plurality of die sleeves are socketed in successively on the benevolence, the diameter that the external diameter of middle benevolence, a plurality of die sleeves and die dwindle stepped inner chamber step by step cooperates also can stretch into this each stepped inner chamber respectively.

2, drawing shaping die of deep drawing part according to claim 1 is characterized in that: described patrix is made of three stepped inner chambers that dwindle step by step; Described counterdie is made of middle benevolence, first die sleeve, second die sleeve, and on the benevolence, second die sleeve was socketed on first die sleeve during first die sleeve was socketed in; The middle benevolence of described counterdie cooperates with patrix minimum diameter inner chamber.

3, drawing shaping die of deep drawing part according to claim 1 and 2 is characterized in that: described patrix is made up of first patrix, first Connection Block, second patrix, second Connection Block, the 3rd patrix; First patrix connects second patrix by first Connection Block, second patrix connects the 3rd patrix by second Connection Block, the lower end of first patrix connects goes up holding pad, and the upper end of the 3rd patrix is fixed on the base, and first patrix, second patrix, the 3rd patrix intracavity diameter are and dwindle shape step by step; Described first Connection Block and second Connection Block are the member that goes in ring, and nose end is the circular arc chamfering in it.