CN210359202U

CN210359202U - Die casting die of big panel corner work piece

Info

Publication number: CN210359202U
Application number: CN201921319253.XU
Authority: CN
Inventors: 周建民; 连文杰; 林济建
Original assignee: Fujian Shengya Mould Co ltd
Current assignee: Fujian Shengya Mould Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-04-21
Anticipated expiration: 2029-08-14

Abstract

The utility model provides a die casting die of big panel corner work piece, including cover half, movable mould, slider and pull device, still include balancing weight and positioner, balancing weight fixed connection is in a side end of cover half frame and compresses tightly in the drive block, and the packing force of this balancing weight acts on the outer end of slider through the transmission of drive block after, in order to offset the thrust that is exerted on the slider by the molten metal in the die cavity; the positioning device comprises a plurality of positioning lugs and a plurality of positioning grooves which are respectively arranged on the movable mould core and the fixed mould core, and the positioning lugs can be just embedded in the positioning grooves for positioning so as to offset the thrust exerted on the movable mould core by the molten metal in the mould cavity. The utility model discloses effectively prevent slider and movable mould benevolence outwards to remove, guaranteed the yields of big panel corner work piece.

Description

Die casting die of big panel corner work piece

Technical Field

The utility model relates to a die casting die.

Background

The die casting die is a metal die used for forming castings in a pressure casting forming process, and pressure casting is a method for casting liquid forging, and is a process finished on a special die casting die forging machine. The basic technological process includes low speed or high speed casting of molten metal, filling the molten metal into the cavity of die casting mold, and pressure forging of the die casting mold with movable cavity surface. The comprehensive mechanical property of the blank is obviously improved.

The die-cast workpiece can be varied, and thus, it is possible to encounter the workpiece with a large panel corner as shown in fig. 1, in which the workpiece is composed of a first flat thin plate 201 and a second flat thin plate 202, and the first flat thin plate 201 and the second flat thin plate 202 have a larger area and form an included angle a, which is referred to as a large panel corner workpiece 200 in the present invention.

As shown in fig. 2, the die-casting mold 100 currently used for manufacturing the large panel corner workpiece 200 includes a fixed mold 1 ', a movable mold 2', a slide block 3 'and a drawing device 4'; the cavity 5 'is composed of a fixed die core 12', a movable die core 22 'and a slide block 3', and the slide block 3 'is driven by a drawing device 4' to translate in the process of die opening and die closing. Because the area of the working surface of the slide block 3 'is also larger due to the larger plane size of the first plane thin plate 201 and the second plane thin plate 202, when the die-casting die 100' is pressurized by the pressurizing device 300 ', the molten metal in the cavity 5' can transmit the pressure outwards along the periphery, and acts on the parting surfaces of the fixed mold core 12 ', the movable mold core 22 ' and the working surface of the slide block 3 ', since the large panel corner workpiece 200 causes the areas of the cavity 12 ', the parting surface of the cavity 22 ' and the working surface of the slide block 3 ' to be large, as can be known from the relationship formula F between pressure and pressure intensity PS, under the condition that the pressure P is not changed, the larger the stress area S is, the larger the pressure F is, so that the slide block 3 ' and the movable die core 22 ' move outwards relative to the fixed die core 12 ' due to the larger thrust F, the size of the die cavity is changed, and defective products are produced.

Disclosure of Invention

The to-be-solved technical problem of the utility model lies in providing a die casting die of big panel corner work piece, effectively prevents slider and movable mould benevolence outwards to remove, has guaranteed the yields of big panel corner work piece.

The utility model discloses a realize like this: a die casting die of big panel corner work piece includes:

a pressurizing device;

the fixed die comprises a fixed die frame and a fixed die core, the fixed die frame is connected with the pressurizing device, and the fixed die core is arranged in the fixed die frame;

the movable die comprises a movable die frame and a movable die core, the movable die frame is arranged relative to the fixed die frame, and the movable die core is arranged in the movable die frame;

the sliding block is arranged on one side of the fixed die core and one side of the movable die core, and a cavity of a large panel corner workpiece is formed between the sliding block and the fixed die core and between the sliding block and the movable die core;

the drawing device comprises a driving block and an inclined rod, the driving block is connected to the sliding block and provided with an inclined hole, the lower end of the inclined rod is inserted into the inclined hole, and the upper end of the inclined rod is connected to the fixed die frame;

further comprising:

the counterweight block is fixedly connected with one side end part of the fixed die frame and tightly pressed on the driving block, and the pressing force of the counterweight block is transmitted by the driving block and then acts on the outer end of the sliding block so as to offset the thrust exerted on the sliding block by the molten metal in the die cavity;

the positioning device comprises a plurality of positioning lugs and a plurality of positioning grooves which are respectively arranged on the movable mould core and the fixed mould core, and the positioning lugs can be just embedded in the positioning grooves for positioning so as to counteract the thrust exerted on the movable mould core by the molten metal in the mould cavity.

Further, according to the utility model discloses a specific embodiment, the balancing weight with cover half frame integrated into one piece.

Furthermore, part or all of the plurality of positioning bumps are arranged on the movable mold core or the fixed mold core, and part or all of the plurality of positioning grooves are arranged on the movable mold core or the fixed mold core.

The utility model has the advantages that: the utility model discloses a die casting die sets up the balancing weight on the cover half frame to from the end tight slider of clamp, can offset by molten metal applies in the die cavity thrust on the slider is equipped with positioner on movable mould benevolence and cover half benevolence again simultaneously, through a plurality of positioning lug and a plurality of positioning groove one-to-one cooperation location, during the die-casting work piece, positioning lug inlay in fix a position in the positioning groove, in order to offset and apply by molten metal in the die cavity thrust on the movable mould benevolence, the three part that so constitutes the die cavity all can not relative movement, and the size of die cavity just can not change yet, has guaranteed the yields of big panel corner work piece widely.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a large panel corner workpiece.

Fig. 2 is a schematic structural view of a conventional die casting mold.

Fig. 3 is a schematic structural view of the die casting mold of the present invention.

Fig. 4 is a schematic perspective view of a movable mold core.

Detailed Description

Referring to fig. 3 and 4, the die casting mold 100 for large panel corner workpiece of the present invention includes a fixed mold 1, a movable mold 2, a slider 3 and a pulling device 4, and further includes a weight block 6 and a positioning device 7:

the fixed die 1 comprises a fixed die frame 11 and a fixed die core 12, the fixed die frame 11 is connected to a pressurizing device 300, and the fixed die core 12 is arranged in the fixed die frame 11;

the movable mold 2 comprises a movable mold frame 21 and a movable mold core 22, the movable mold frame 21 is arranged relative to the fixed mold frame 11, and the movable mold core 22 is arranged in the movable mold frame 21; as shown in fig. 4, the movable die core 22 has a parting surface 221 corresponding to the first flat thin plate 201 of the workpiece 200 with a large panel corner, and a parting surface 222 corresponding to the second flat thin plate 202;

the slide block 3 is arranged at one side of the fixed die core 12 and the movable die core 22, and a cavity 5 of a large panel corner workpiece is formed between the slide block and the fixed die core 12 and between the slide block and the movable die core 22;

the drawing device 4 comprises a driving block 41 and an inclined rod 42, the driving block 41 is connected to the sliding block 3 and is provided with an inclined hole 412, the lower end of the inclined rod 42 is inserted into the inclined hole 412, and the upper end is connected to the fixed mold frame 11; when the die is closed, the movable die 2 moves towards the fixed die 1, so that the inclined rod 42 is inserted into the inclined hole 412, the inclined rod 42 can drive the driving block 41 to drive the slide block 3 to move inwards through the inclined hole 412 until the slide block 3 reaches a preset position, and the die closing is finished; when the mold is opened, the movable mold 2 is far away from the fixed mold 1, so that the inclined rod 42 is pulled out from the inclined hole 412, and the inclined rod 42 can drive the driving block 41 to drive the slide block 3 to move outwards through the inclined hole 412 until the mold is completely opened.

A weight block 6 fixedly connected to one end of the fixed mold frame 11 and pressed against the driving block 41, wherein the pressing force of the weight block 6 is transmitted by the driving block 41 and then acts on the outer end of the slide block 3 to offset the thrust applied to the slide block 3 by the molten metal in the cavity 5; preferably, the weight member 6 is integrally formed with the mold frame 11, so that when the mold frame 11 is manufactured, the weight frame can be enlarged directly to form a portion of the weight member 6 directly.

The positioning device 7 includes a plurality of positioning protrusions 71 and a plurality of positioning grooves 72 respectively disposed on the moving mold core 22 and the stationary mold core 12, and the positioning protrusions 71 can be just embedded in the positioning grooves 72 for matching and positioning, so as to counteract the thrust exerted on the moving mold core 22 by the molten metal in the cavity 5.

When the positioning structure is arranged, all the positioning protrusions 71 can be arranged on the moving core 22, and all the positioning grooves 72 can be arranged on the fixed core 12; the reverse arrangement is also possible; as shown in fig. 4, a part of the positioning protrusions 71 and the positioning grooves 72 are disposed on the moving mold core 22, and another part of the positioning protrusions 71 and the positioning grooves 72 are disposed on the fixed mold core 12, as long as the positioning protrusions 71 and the positioning grooves 72 are matched with each other in a one-to-one correspondence manner.

The utility model discloses a theory of operation lies in:

when the die casting die 100 of the utility model is used for die-casting, the counterweight 6 on the fixed die frame 11 is pressed on the driving block 41, when the pressurizing device 300 pressurizes the molten metal in the die cavity 5, the pressure is transmitted to the movable die core 22, the fixed die core 12 and the slide block 3 of the forming cavity 5 through the molten metal, and the movement trend that the three are far away from each other is formed, at this time, as the driving block 41 is pressed, the thrust exerted on the slide block 3 by the molten metal in the die cavity 5 can be counteracted, so as to fully prevent the slide block 3 from moving outwards, and meanwhile, the positioning devices 7 are arranged on the movable die core 22 and the fixed die core 12, and are correspondingly positioned one by one-to-one through the plurality of positioning lugs 71 and the plurality of positioning grooves 72, when a workpiece is die-cast, the positioning lugs 71 are embedded in the positioning grooves 72 to be positioned, so as to counteract the thrust exerted on the movable die core 22, the size of the die cavity 5 cannot be changed, and the yield of large panel corner workpieces is greatly guaranteed.

Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A die casting die of big panel corner work piece includes:

the fixed die comprises a fixed die frame and a fixed die core, the fixed die frame is connected with a pressurizing device, and the fixed die core is arranged in the fixed die frame;

the method is characterized in that: further comprising:

the counterweight block is fixedly connected with one side end part of the fixed die frame and tightly pressed on the driving block, and the pressing force of the counterweight block is transmitted by the driving block and then acts on the outer end of the sliding block so as to offset the thrust exerted on the sliding block by molten metal in the die cavity;

2. The die-casting die for the large-panel corner workpiece as claimed in claim 1, wherein: the balancing weight and the fixed die frame are integrally formed.

3. The die-casting die for the large-panel corner workpiece as claimed in claim 1, wherein: and part or all of the plurality of positioning lugs are arranged on the movable mould core or the fixed mould core, and part or all of the plurality of positioning grooves are arranged on the movable mould core or the fixed mould core.