CN215544250U - Sheet metal component double-cavity single-acting drawing die - Google Patents

Abstract

The utility model relates to the field of sheet metal forming dies, and particularly discloses a sheet metal part double-cavity single-acting drawing die, which comprises: the device comprises a lower die holder provided with a first male die and a second male die, a through hole, a blank holder guide pillar, a blank holder insert, a first male die, a second male die, a blank holder guide groove, an ejector rod column, an upper die guide groove, a plate limiter, an upper die holder, a first female die, a second female die, an upper die guide pillar, a balance block boss, a limiting rod and a limiting rod hole. The double-station synchronous operation of the blank holder guide groove and the blank holder guide pillar as well as the upper die guide groove and the upper die guide pillar is adopted, so that the parts can be guided during movement, the movable gap among the parts is eliminated, and the maintenance of the die precision is improved; the plate limiting stopper is arranged on the blank holder, the plate can be conveniently guided into the feeding area, and the position can be adjusted to change the size of the feeding area.

Description

Sheet metal component double-cavity single-acting drawing die

Technical Field

The utility model belongs to the field of sheet metal forming dies, and particularly relates to a sheet metal part double-cavity single-acting drawing die.

Background

The sheet metal part is a common part in industrial products, and the sheet metal part is processed by using a stamping die, a forming die, a cutting die, a punching die, a binding die and the like; a common basic structure is a top and bottom die composite structure, the die typically comprising: the upper die comprises an upper die plate, an upper die body, a lower die plate, a lower die body and a working assembly.

The existing drawing die for sheet metal parts is generally only provided with a single station, and the processing efficiency is low; the upper die, the lower die and the die core and the lower die can move relatively, so that the precision retentivity is poor due to the influence of tolerance stacking factors while the die is stressed greatly during drawing, and the tolerance is easy to increase after long-time use; meanwhile, if multi-station feeding is adopted, the alignment time of feeding is long, and the production efficiency is affected, so that the adoption of an automatic material plate guide device which can facilitate feeding is also one of important factors considered by the design.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sheet metal part double-cavity single-acting drawing die, so that the defects of low working efficiency, poor precision retentivity and inconvenience in feeding of the conventional sheet metal drawing die are overcome.

In order to achieve the purpose, the utility model provides a sheet metal part double-cavity single-acting drawing die, which comprises: the lower die base is fixedly provided with a first male die and a second male die, two or more blank holder guide pillars are arranged on the lower die base, two or more through holes are also formed in the lower die base, and the guide pillars and the through holes are arranged around the first male die and the second male die in a surrounding manner; the blank holder is sleeved on the first male die and the second male die in a sliding manner and is provided with a first die hole matched with the first male die and a second die hole matched with the second male die, the blank holder is provided with a blank holder guide groove matched with the blank holder guide pillar, the bottom of the blank holder is provided with a ejector rod column, one end of the ejector rod column penetrates through the through hole and extends to the lower part of the lower die holder, and the side part of the blank holder is provided with an upper die guide groove; the plate limiters are respectively arranged at the openings of the first die hole and the second die hole and enclose a feeding area, and the area of the feeding area is adjustable; the upper die base is provided with a first concave die and a second concave die which are detachable, the first concave die corresponds to the first convex die in position, the second concave die corresponds to the second convex die in position, and an upper die guide pillar matched with the upper die guide groove is arranged on the upper die base.

Preferably, in the above technical scheme, two or more balance blocks are arranged on the blank holder, and the height of the balance blocks is adjustable.

Preferably, in the above technical solution, the upper die base is provided with a balance block boss corresponding to the balance block.

Preferably, in the above technical scheme, a plurality of blank holder inserts are arranged on the blank holder, and the blank holder inserts enclose the first die hole and the second die hole respectively.

Preferably, in the above technical scheme, the blank holder is provided with two insert mounting grooves for mounting the blank holder insert, and the blank holder insert is mounted in the insert mounting groove through a screw.

Preferably, in the above technical scheme, a first extrusion key is clamped between the blank holder insert and the side wall of the insert mounting groove.

Preferably, in the technical scheme, the plate limiter comprises a mounting seat and a limiting column, a long through hole is formed in the mounting seat, the limiter is mounted on the blank holder insert block through a screw penetrating through the long through hole, one end of the limiting column extends towards the upper die base, a guide part is arranged on one side of the upper die base, and the guide part can enable the plate to slide towards the first die hole or the second die hole.

Preferably, in the above technical scheme, the lower die holder is provided with two or more than two limiting rods, one end of each limiting rod extends towards the upper die holder, the blank holder is provided with limiting rod holes corresponding to the limiting rods, and the blank holder can be limited by the limiting rods when moving to one end of the limiting rods.

Preferably, in the above technical scheme, the center of the first concave die and the center of the second concave die are respectively provided with an elastically telescopic discharging rod.

Preferably, in the technical scheme, two die mounting grooves are formed in the upper die base, the first die and the second die are respectively arranged in the die mounting grooves, and a second extrusion key is clamped between the first die and the side wall of the die mounting groove and between the second die and the side wall of the die mounting groove.

Compared with the prior art, the utility model has the following beneficial effects:

1. the drawing die works simultaneously through double stations, so that the working efficiency of the die is improved, the blank holder guide groove and the blank holder guide pillar are arranged between the blank holder and the lower die holder, and the upper die guide groove and the upper die guide pillar are arranged between the blank holder and the upper die, so that parts can be guided during movement, movable gaps among the parts are eliminated, and the retentivity of the die precision is improved; the plate limiting stopper is arranged on the blank holder, the plate can be conveniently guided into the feeding area, and the position can be adjusted to change the size of the feeding area.

2. According to the utility model, the height-adjustable balance blocks are arranged on the blank holder, the balance block bosses matched with the balance blocks are arranged on the upper die base, and the blank holder can be always carried out in a higher levelness state in the process that the upper die base pushes the blank holder to move, so that the quality and the shape accuracy of a finished product are improved.

3. The blank holder is provided with the blank holder insert, the blank holder insert is enclosed on the peripheries of the first male die and the second male die and used for pressing the edge of the plate, and a first extrusion key is arranged between the periphery of the blank holder insert and the blank holder insert mounting groove and can tightly push a gap between the blank holder inserts, so that the surface quality of a finally formed part is guaranteed.

4. According to the utility model, the first female die and the second female die are arranged in the female die mounting groove of the upper die holder, and then are arranged between the first female die and the second female die through the second extrusion key, and the female die and the mounting groove are mutually tightly propped, so that the effects of eliminating gaps and reinforcing the female die are achieved.

5. The elastic telescopic discharging rods are arranged in the middle of the first female die and the second female die, so that the processed parts can be ejected out of the female dies when the upper die base is lifted upwards after being processed, and the function of preventing the parts from being clamped in the female dies is achieved.

6. The lower die holder is provided with the limiting rod which can be used for limiting the displacement of the blank holder when the blank holder is ejected upwards by the ejector rod of the oil press, so that safety accidents are prevented.

7. The limiting device is provided with the guide part, the bevel edge of the guide part is inclined downwards, when a plate is placed between the limiting devices, the plate can automatically slide onto the male die to be positioned, so that the automatic positioning effect is achieved, the bottom of the limiting device is provided with the long through hole for mounting the screw, and the mounting position of the limiting device can be changed by adjusting the mounting position of the screw in the long through hole in the using process, so that the area of a feeding area is changed.

Drawings

FIG. 1 is a structural diagram of a double-cavity single-acting drawing die for sheet metal parts.

Fig. 2 is a structural view of the lower die base.

FIG. 3 is a view showing the construction of a blank holder.

Fig. 4 is a structural view of the upper die base.

Description of the main reference numerals:

1-a lower die holder, 11-a first male die, 12-a second male die, 13-a blank holder guide post and 14-a through hole;

2-a blank holder, 21-a first die hole, 22-a second die hole, 23-a blank holder guide groove, 24-a jack post, 25-an upper die guide groove, 26-a blank holder insert, 27-an insert mounting groove and 28-a first extrusion key;

3-plate limiter, 31-mounting seat, 32-limiting column and 33-long through hole;

4-an upper die holder, 41-a first female die, 42-a second female die, 43-an upper die guide post, 44-a balance block boss, 45-a female die installation groove and 46-a second extrusion key;

5-a balance weight;

6-a limiting rod, 61-a limiting rod hole;

7-a discharge rod.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

As shown in fig. 1 to 4, the double-cavity single-acting drawing die for a sheet metal part in this embodiment includes: the die holder comprises a lower die holder 1, a first male die 11, a second male die 12, a blank holder guide post 13, a through hole 14, a blank holder 2, a first die hole 21, a second die hole 22, a blank holder guide groove 23, a mandril post 24, an upper die guide groove 25, a blank holder insert 26, an insert mounting groove 27, a first extrusion key 28, a plate limiter 3, a mounting seat 31, a limiting post 32, a long through hole 33, an upper die holder 4, a first female die 41, a second female die 42, an upper die guide post 43, a balance block boss 44, a female die mounting groove 45, a second extrusion key 46, a balance block 5, a limiting rod 6, a limiting rod hole 61 and a discharging rod 7.

The lower die holder 1 is fixedly provided with a first male die 11 and a second male die 12, four corners of the lower die holder 1 are respectively provided with a blank holder guide post 13, the lower die holder 1 is further provided with a plurality of through holes 14, and the guide posts 13 and the through holes 14 are arranged around the first male die 11 and the second male die 12 in a surrounding manner.

The blank holder 2 is sleeved on the first male die 11 and the second male die 12 and can slide along the first male die 11 and the second male die 12, a first die hole 21 matched with the first male die 11 and a second die hole 22 matched with the second male die 12 are formed in the blank holder 2, blank holder guide grooves 23 matched with the blank holder guide posts 13 are formed in four corners of the blank holder 2, ejector rod posts 24 are arranged at the bottom of the blank holder 2, one ends of the ejector rod posts 24 penetrate through the through holes 14 and extend towards the lower portion of the lower die holder 1, and upper die guide grooves 25 are formed in the side portions of the blank holder 2; a plurality of balance blocks 5 are arranged on the blank holder 2, and the height of each balance block 5 is adjustable; the blank holder 2 is provided with two insert mounting grooves 27 for mounting the blank holder insert 26, the plurality of blank holder inserts 26 are mounted in the insert mounting grooves 27 through screws, the plurality of blank holder inserts 26 in each insert mounting groove 27 respectively enclose the first die hole 21 and the second die hole 22, and a plurality of first extrusion keys 28 are mounted between the side walls of the blank holder inserts 26 and the insert mounting grooves 27 so as to enable the blank holders to be inserted between the 26 and mutually tightly push against each other to eliminate the gap between the blank holder inserts 26.

A plurality of plate stopper 3 encircles the drill way department of installing at first nib 21 and second nib 22 respectively, and enclose and close out the material loading district, the area in this material loading district is adjustable, plate stopper 3 includes mount pad 31 and spacing post 32, slotted hole 33 has been seted up on the mount pad 31, stopper 3 is installed on blank holder insert 26 through the screw that passes slotted hole 33, the one end of spacing post 32 extends to the direction of upper die base 4, one side of upper die base 4 is provided with guide part 44, guide part 44 is the inclined plane structure of downward sloping, it can make the plate slide to the material loading district of first nib 21 or second nib 22, and carry out the screens.

The upper die base 4 is provided with a first detachable female die 41 and a second detachable female die 42, the first female die 41 corresponds to the first male die 11, the second female die 42 corresponds to the second male die 12, two sides of the upper die base 4 are provided with upper die guide posts 43 matched with the upper die guide grooves 25, the upper die base 4 is provided with a balance block boss 44 corresponding to the balance block 5, the center of the first female die 41 and the center of the second female die 42 are respectively provided with an elastically telescopic discharging rod 7, the upper die base 4 is provided with two female die mounting grooves 45, the first female die 41 and the second female die 42 are respectively arranged in one female die mounting groove 45, and a second extrusion key 46 is arranged between the side walls of the first female die 41 and the second female die 42 and the female die mounting groove 45 so as to tightly push the first female die 41 and the second female die 42.

Two gag lever posts 6 are installed respectively to the front and back both sides of die holder 1, and the one end of gag lever post 6 extends to the direction of upper die base 4, has seted up the gag lever post hole 61 corresponding with gag lever post 6 on the blank holder 2, thereby can be dragged by it and carry on spacingly when blank holder 2 moves to the one end of gag lever post 6.

Next, the working principle of the double-cavity single-acting drawing die for sheet metal parts in this embodiment will be described in detail to make those skilled in the art more understand the present invention:

when the die is used, the upper die holder 4 is firstly installed on a sliding block of an oil press, the upper die holder is driven by the sliding block to move up and down, a first female die 41 and a second female die 42 are respectively installed in two female die installation grooves 45 of the upper die holder 4, a second extrusion key 46 is installed between the first female die 41 and the second female die 42 and the female die installation grooves 45, and the first female die 41 and the second female die 42 can be tightly attached to the female die installation grooves 45 through the second extrusion key 46.

The lower die holder 1 is fixed on a workbench of an oil press, and a mandril of the oil press is inserted into the through hole 14 from the bottom of the lower die holder 1 and then is contacted with the bottom of a mandril column 24 on the blank holder 2; the blank holder insert 26 is installed in the insert installation groove 27, then the first extrusion key 28 is installed to tightly push the gaps between the blank holder inserts 26, finally the plate limiter 3 is installed on the blank holder inserts 26 through screws, and the distance between the blank holder inserts 26 is adjusted according to the actual size of the plate, so that the feeding area enclosed by the blank holder inserts 26 corresponds to the size of the plate.

The flitch is put into two feeding areas enclosed by the plate limiter 3, when the upper die holder 4 presses the lower die holder 1, the balance block boss 44 on the upper die holder 4 and the balance block 5 on the blank holder 2 are contacted with each other to push the blank holder 2 downwards, the flitch is clamped between the male die and the female die, and along with the downward movement of the blank holder 2, the first male die 11 and the second male die 12 are lifted upwards to draw and form the middle part of the plate; subsequently, the upper die base 4 is lifted upwards, the formed plate is unloaded from the female die by the unloading rod 7, and meanwhile, the ejector rod of the oil press lifts the whole blank holder 2, so that the die is reset.

In conclusion, the double-station synchronous die disclosed by the utility model can work simultaneously through double stations, so that the working efficiency of the die is improved, the blank holder guide groove and the blank holder guide pillar are arranged between the blank holder and the lower die holder, and the upper die guide groove and the upper die guide pillar are arranged between the blank holder and the upper die, so that the parts can be guided during movement, the movable gaps among the parts are eliminated, and the retentivity of the die precision is improved; the plate limiting stopper is arranged on the blank holder, the plate can be conveniently guided into the feeding area, and the position can be adjusted to change the size of the feeding area.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a sheet metal component double-chamber single action type drawing die which characterized in that includes:

the lower die holder (1) is fixedly provided with a first male die (11) and a second male die (12), two or more blank holder guide pillars (13) are arranged on the lower die holder (1), two or more through holes (14) are also formed in the lower die holder (1), and the guide pillars (13) and the through holes (14) are annularly arranged around the first male die (11) and the second male die (12);

the blank holder (2) is sleeved on the first male die (11) and the second male die (12) in a slidable manner and is provided with a first die hole (21) matched with the first male die (11) and a second die hole (22) matched with the second male die (12), a blank holder guide groove (23) matched with the blank holder guide post (13) is formed in the blank holder (2), a push rod column (24) is arranged at the bottom of the blank holder (2), one end of the push rod column (24) penetrates through the through hole (14) and extends towards the lower part of the lower die holder (1), and an upper die guide groove (25) is formed in the side part of the blank holder (2);

the plate limiters (3) are respectively arranged at the orifices of the first die hole (21) and the second die hole (22) and enclose a feeding area, and the area of the feeding area is adjustable;

the upper die holder (4) is provided with a first detachable female die (41) and a second detachable female die (42), the first female die (41) corresponds to the first male die (11), the second female die (42) corresponds to the second male die (12), and an upper die guide post (43) matched with the upper die guide groove (25) is arranged on the upper die holder (4).

2. The sheet metal part double-cavity single-acting drawing die according to claim 1, wherein two or more balance blocks (5) are arranged on the blank holder (2), and the height of the balance blocks (5) is adjustable.

3. The sheet metal part double-cavity single-acting drawing die according to claim 2, wherein a balance block boss (44) corresponding to the balance block (5) is arranged on the upper die base (4).

4. Sheet metal part double-cavity single-acting drawing die according to claim 1, characterized in that a plurality of blank holder inserts (26) are arranged on the blank holder (2), and the blank holder inserts (26) enclose the first die hole (21) and the second die hole (22) respectively.

5. The sheet metal part double-cavity single-acting drawing die as claimed in claim 4, wherein the blank holder (2) is provided with two insert mounting grooves (27) for mounting the blank holder insert (26), and the blank holder insert (26) is mounted in the insert mounting groove (27) through a screw.

6. The sheet metal part double-cavity single-acting drawing die according to claim 5, wherein a first extrusion key (28) is clamped between the blank holder insert (26) and the side wall of the insert mounting groove (27).

7. The sheet metal part double-cavity single-acting drawing die according to claim 6, wherein the plate limiter (3) comprises a mounting seat (31) and a limiting column (32), a long through hole (33) is formed in the mounting seat (31), the limiter (3) is mounted on a blank holder insert (26) through a screw penetrating through the long through hole (33), one end of the limiting column (32) extends towards the upper die holder (4), a guide part (44) is arranged on one side of the upper die holder (4), and the guide part (44) can enable a plate to slide towards the first die hole (21) or the second die hole (22).

8. The sheet metal part double-cavity single-acting drawing die according to claim 1, wherein two or more than two limiting rods (6) are arranged on the lower die holder (1), one ends of the limiting rods (6) extend towards the upper die holder (4), and limiting rod holes (61) corresponding to the limiting rods (6) are formed in the blank holder (2), so that the blank holder (2) can be limited by the limiting rods (6) when moving to one ends of the limiting rods.

9. The sheet metal part double-cavity single-acting drawing die according to claim 1, wherein an elastically telescopic discharging rod (7) is respectively arranged at the center of the first concave die (41) and the center of the second concave die (42).

10. The sheet metal part double-cavity single-acting drawing die according to claim 1, wherein the upper die holder (4) is provided with two die mounting grooves (45), the first die (41) and the second die (42) are respectively arranged in one die mounting groove (45), and a second extrusion key (46) is clamped between the first die (41) and the second die (42) and the side wall of the die mounting groove (45).

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