CN215199602U

CN215199602U - Die-casting die for metal piece with hole

Info

Publication number: CN215199602U
Application number: CN202022893761.8U
Authority: CN
Inventors: 张作坚
Original assignee: Dongguan Hongwei Precision Hardware Products Co ltd
Current assignee: Dongguan Hongwei Precision Hardware Products Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-12-17
Anticipated expiration: 2030-12-03

Abstract

The utility model provides a die-casting die for a metal piece with a hole, wherein a prepressing plate is connected below an upper backing plate through a first spring, a lifting hole is arranged in the prepressing plate, two inclined rods are fixed at the bottom of the prepressing plate, and a push rod is fixed at the bottom of an upper module; a cylindrical die core block is fixed in the center of the lower template, translation blocks are arranged on two sides of the cylindrical die core block, positioning inclined holes are formed in the translation blocks, a lower half die cavity is formed in one side of each translation block and comprises a first half circular cavity and a second half circular cavity, and a hole forming mechanism is arranged on each translation block; the hole forming mechanism comprises a forming jack, one side of the forming jack is vertically connected with a lifting cavity, the bottom of the lifting cavity is connected with a spring cavity, a hole forming rod is connected in the forming jack in a sliding mode, a transverse plate is connected in the lifting cavity in a sliding mode, a second spring is arranged in the spring cavity, and the transverse plate is fixed on one side of the hole forming rod. The utility model discloses during the die sinking, the push rod only needs less stroke just can break away from the translation piece and realize stepping down, can effectively save space and energy.

Description

Die-casting die for metal piece with hole

Technical Field

The utility model relates to a die casting die specifically discloses a die casting die of foraminiferous metalwork.

Background

The die casting is a metal casting process and is characterized in that high pressure is applied to molten metal by utilizing an inner cavity of a die, and the processing process is similar to injection molding. The die-casting die is a tool for casting metal parts, completes a die-casting process on a special die-casting die forging machine, and can process and obtain a metal piece matched with a die-casting cavity.

In the prior art, when producing foraminiferous metalwork such as flange, it is equipped with corresponding inserted bar and is used for forming to lead to can, and during the compound die, the inserted bar inserts in the die-casting die cavity, and the inserted bar takes off the die-casting die cavity and lets the position for taking off the material during the die sinking, and to the flange that has the flange or other pore structure are located the metalwork of lower position, the die sinking needs to pass through great stroke, and die-casting die's occupation space is big.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a die-casting mold for a metal part with a hole, which can be used for die-casting the metal part with the hole, has a small stroke required by die opening, and can effectively save space.

In order to solve the prior art problem, the utility model discloses a die casting die of foraminiferous metalwork, including upper padding plate, upper die block, lower bolster, die holder and lower bolster, be equipped with the casting passageway in upper padding plate and the upper die block, the bottom of upper padding plate is fixed with the guide pillar, be connected with the preformplate through first spring under the upper padding plate, be equipped with the lift hole in the preformplate, the upper die block is connected in the lift hole in a sliding manner, be equipped with the guide hole on the preformplate, the guide pillar is connected in the guide hole in a sliding manner, the bottom of preformplate is fixed with two down tubes, the bottom of upper die block is fixed with 2n push rods, n is the positive integer;

a cylindrical die core block positioned right below the upper die block is fixed in the center of the lower die plate, two sides of the cylindrical die core block are respectively provided with a translation block, the lower die plate is provided with two sliding grooves which are T-shaped grooves or dovetail grooves, the bottom of the translation block is fixed with a sliding block which is connected in the sliding grooves in a sliding manner, positioning inclined holes are formed in the translation block, inclined rods are connected in the positioning inclined holes in a sliding manner, one side, close to the cylindrical die core block, of the translation block is provided with a lower half die cavity, the lower half die cavity comprises a first semicircular cavity and a second semicircular cavity which are connected up and down, the cylindrical die core block, the first semicircular cavity and the second semicircular cavity have a common axis, the radius of the first semicircular cavity is smaller than that of the second semicircular cavity, and the translation block is provided with an n-hole forming mechanism;

hole forming mechanism is including connecting the shaping jack on the second semicircle chamber, and the push rod can insert in the shaping jack, and one side of shaping jack is connected with the lift chamber perpendicularly, and the bottom in lift chamber is connected with the spring chamber, and sliding connection has the hole shaping pole in the shaping jack, and sliding connection has the diaphragm in the lift chamber, is equipped with the second spring in the spring chamber, and diaphragm fixed connection is in one side of hole shaping pole, and the chamber end in diaphragm and spring chamber is connected at the both ends of second spring.

Furthermore, the bottom end of the guide pillar is fixed with a limiting plate, the bottom of the guide hole is connected with a limiting cavity, and the limiting plate is connected in the limiting cavity in a sliding mode.

Further, the bottom of the upper die block is provided with an upper die cavity.

Furthermore, a material ejecting cavity is arranged in the lower die base, a material ejecting plate is connected in the material ejecting cavity in a sliding mode, an ejector pin is fixed on the material ejecting plate, a third spring is connected between the material ejecting plate and the lifting cavity, a material ejecting hole is formed in the cylindrical die core block, and the ejector pin is connected in the material ejecting hole in a sliding mode.

Furthermore, a through hole is formed in the lower base plate, and a guide block which is connected in the through hole in a sliding mode is fixed at the bottom of the ejector plate.

The utility model has the advantages that: the utility model discloses a die casting die of foraminiferous metalwork is provided with special hole forming mechanism, and the push rod promotes the hole shaping pole to the second semicircle chamber during the compound die, can die-cast and form foraminiferous metalwork, and during the die sinking, the push rod only needs less stroke just can break away from the translation piece and realize stepping down, and hole shaping pole can effectively break away from the second semicircle chamber, and the die sinking action is reliable and stable, can effectively save space and energy simultaneously to reduction in production cost; the limit of the translation block is removed after the push rod is separated from the forming through hole, the translation block can be smoothly and flatly moved away from the cylindrical die core block under the action of the inclined rod, the metal piece can be reliably separated from the lower half die cavity, and the material can be effectively and conveniently removed.

Drawings

Fig. 1 is the schematic view of the internal structure of the pre-pressing device of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the die casting device of the present invention.

Fig. 3 is a schematic view of the three-dimensional structure of the mold opening and material ejection of the present invention.

The reference signs are: the device comprises an upper padding plate 10, a guide post 11, a first spring 12, a limiting plate 13, an upper module 20, a casting channel 21, a push rod 22, an upper die cavity 23, a lower die plate 30, a cylindrical die core block 31, a material ejecting hole 311, a sliding groove 32, a lower die base 40, a material ejecting cavity 41, a lower padding plate 50, a through hole 51, a pre-pressing plate 60, a lifting hole 61, a guide hole 62, an inclined rod 63, a limiting cavity 64, a translation block 70, a sliding block 71, a positioning inclined hole 72, a lower die cavity 73, a first semicircular cavity 731, a second semicircular cavity 732, a hole forming mechanism 80, a forming insertion hole 81, a hole forming rod 811, a lifting cavity 82, a transverse plate 821, a spring cavity 83, a second spring 831, a material ejecting plate 91, an ejector pin 92, a third spring 93, a guide block 94 and a metal piece 100.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Refer to fig. 1 to 3.

The embodiment of the utility model discloses die casting die of foraminiferous metalwork, including from last upper padding plate 10, upper module 20, lower bolster 30, die holder 40 and the lower bolster 50 that sets gradually down, be equipped with same casting passageway 21 in upper padding plate 10 and the upper module 20, the bottom of upper padding plate 10 is fixed with guide pillar 11, upper padding plate 10 is connected with pre-stressed plate 60 through first spring 12 down, be equipped with lift hole 61 in the pre-stressed plate 60, upper module 20 sliding connection is in lift hole 61, be equipped with guide hole 62 on the pre-stressed plate 60, guide pillar 11 sliding connection is in guide hole 62, the stability of the mould action that can effectively open and shut, the bottom of pre-stressed plate 60 is fixed with two down tubes 63, each down tube 63 all keeps away from upper module 20 slope from last to down, the bottom of upper module 20 is fixed with 2n push rods 22, n is the positive integer;

a cylindrical mold core block 31 positioned right below the upper mold block 20 is fixed at the central position of the lower template 30, two translation blocks 70 are respectively arranged at two opposite sides of the cylindrical mold core block 31, two sliding grooves 32 are arranged on the lower template 30, each sliding groove 32 is a T-shaped groove or a dovetail groove, a sliding block 71 is fixed at the bottom of each translation block 70, each sliding block 71 is slidably connected in the corresponding sliding groove 32, the sliding block 71 is matched with the sliding groove 32 in shape, namely the sliding block 71 is a T-shaped sliding block 71 or a dovetail-shaped sliding block 71, the position of the sliding block 71 can be effectively limited through the corresponding sliding groove 32, so that the translation block 70 can only realize translation movement without lifting movement, the reliability of the material stripping action of the translation block can be effectively ensured, a positioning inclined hole 72 parallel to the inclined rod 63 is arranged in each translation block 70, the inclined rod 63 is slidably connected in the positioning inclined hole 72, a lower mold cavity 73 is arranged at one side of each translation block 70 close to the cylindrical mold core block 31, the two lower half-mould cavities 73 can form a complete mould cavity structure after being spliced, each lower half-mould cavity 73 comprises a first semicircular cavity 731 and a second semicircular cavity 732 which are connected up and down, each of the first semicircular cavity 731 and the second semicircular cavity 732 is a semi-cylindrical cavity structure, each first semicircular cavity 731 is connected to the top of each second semicircular cavity 732, each cylindrical mould core block 31, each first semicircular cavity 731 and each second semicircular cavity 732 have a common axis, the radius of each first semicircular cavity 731 is smaller than that of each second semicircular cavity 732, and each translation block 70 is provided with n hole forming mechanisms 80;

hole forming mechanism 80 is including connecting the shaping jack 81 on second semicircle chamber 732, the vertical top surface that runs through translation piece 70 of shaping jack 81, each push rod 22 can correspond and insert in each shaping jack 81, during the compound die, each push rod 22 inserts respectively in each shaping jack 81, one side of shaping jack 81 is connected with lift chamber 82 perpendicularly, the bottom in lift chamber 82 is connected with spring chamber 83, sliding connection has porose shaping pole 811 in the shaping jack 81, sliding connection has diaphragm 821 in the lift chamber 82, be equipped with vertical flexible second spring 831 in the spring chamber 83, diaphragm 821 fixed connection is in one side of hole shaping pole 811, diaphragm 821 and the chamber bottom of spring chamber 83 are connected at the both ends of second spring 831.

The depth of the push rod 22 can be set to be the same as the depth of the second semicircular cavity 732, which can effectively shorten the stroke of the push rod 22 required for the translation block 70 to yield.

The utility model discloses a working process does: when the mold closing prepressing is carried out, as shown in fig. 1, the prepressing plate 60 is tightly attached to the translation block 70, the inclined rod 63 drives the translation block 70 to be tightly attached to the side surface of the cylindrical mold core block 31 through the positioning inclined hole 72, the two lower mold half cavities 73 are spliced and then matched with the cylindrical mold core block 31 to form a die casting cavity, and molten metal is injected into the die casting cavity through the casting channel 21; during die casting, as shown in fig. 2, the upper cushion plate 10 is driven by the press to continuously descend, the upper module 20 further descends close to the cylindrical die core block 31, so as to extrude the molten metal in the die-casting cavity, meanwhile, the push rod 22 is inserted into the forming insertion hole 81, the hole forming rod 811 is pushed into the second semicircular cavity 732 for shaping, and the metal piece 100 is obtained after cooling forming; when the mold is opened, the upper cushion plate 10 gradually moves away from the lower cushion plate 50 to ascend, the upper mold block 20 is separated from the cylindrical mold core block 31, the push rod 22 loosens the hole forming rod 811 and separates from the forming jack 81 to give way for the movement of the subsequent translation block 70, the push rod 22 is prevented from blocking the movement of the translation block 70, the hole forming rod 811 is driven to ascend and reset through the transverse plate 821 under the action of the second spring 831, so that the hole forming rod 732 is separated, the hole forming rod 811 is prevented from blocking the metal piece 100 to separate from the lower half mold cavity 73, the stroke required by mold opening is small, the stability of mold opening and closing actions can be effectively improved, and the occupied space of the mold can be reduced; as shown in fig. 3, during the process of further raising the upper tie plate 10, the prepressing plate 60 is raised away from the translation block 70, and the inclined rod 63 drives the translation block 70 to move in translation away from the cylindrical mold core block 31 through the positioning inclined hole 72, so that the metal piece 100 is separated from the two lower mold half cavities 73.

In this embodiment, a limiting plate 13 is fixed at the bottom end of each guide post 11, a limiting cavity 64 is connected to the bottom of each guide hole 62, the limiting plate 13 is slidably connected to the limiting cavity 64, and no matter whether the mold is opened or closed, the first spring 12 is always in a pressing state, when the mold is opened, the upper cushion plate 10 rises until the limiting plate 13 reaches the top of the limiting cavity 64, and the upper cushion plate 10 can directly pull the prepressing plate 60 through the limiting plate 13 to overcome the elastic force of the first spring 12 and rise away from the translation block 70, so as to ensure stable and reliable mold opening.

In this embodiment, the upper die cavity 23 is disposed at the bottom of the upper die block 20, when the die assembly and die casting are performed, the upper die cavity 23 covers the two lower die half cavities 73, the upper die cavity 23 is connected to the first semicircular cavity 731, and the die casting cavity formed by the upper die cavity 23 and the two lower die half cavities 73 after being spliced and matching with the cylindrical die core block 31 can effectively form a cover-shaped structure.

Based on the above embodiment, be equipped with liftout chamber 41 in the lower bolster 40, sliding connection has liftout plate 91 in the liftout chamber 41, be fixed with thimble 92 on the liftout plate 91, be connected with the third spring 93 of vertical setting between liftout plate 91 and the lift chamber 82, be equipped with liftout hole 311 in the cylinder mold core piece 31, liftout hole 311 runs through lower bolster 30 simultaneously, thimble 92 sliding connection is in liftout hole 311, after the die sinking, external ejecting power unit drive liftout plate 91 rises, thereby ejecting realization stripping with metalwork 100, stripping is convenient, and safe and reliable.

In the embodiment, the lower backing plate 50 is provided with the through hole 51, and the bottom of the ejector plate 91 is fixed with the guide block 94 slidably connected in the through hole 51, so that the stability of the stripping and ejecting actions can be effectively improved.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A die-casting die for a perforated metal piece comprises an upper backing plate (10), an upper die block (20), a lower die plate (30), a lower die holder (40) and a lower backing plate (50), wherein a casting channel (21) is arranged in the upper backing plate (10) and the upper die block (20), the die-casting die is characterized in that a guide pillar (11) is fixed at the bottom of the upper backing plate (10), a prepressing plate (60) is connected below the upper backing plate (10) through a first spring (12), a lifting hole (61) is formed in the prepressing plate (60), the upper die block (20) is connected in the lifting hole (61) in a sliding manner, a guide hole (62) is formed in the prepressing plate (60), the guide pillar (11) is connected in the guide hole (62) in a sliding manner, two inclined rods (63) are fixed at the bottom of the prepressing plate (60), 2n push rods (22) are fixed at the bottom of the upper die block (20), n is a positive integer;

be fixed with in the center of lower bolster (30) and be located cylinder mould core block (31) under last module (20), the both sides of cylinder mould core block (31) all are equipped with a translation piece (70), be equipped with two spout (32) on lower bolster (30), spout (32) are T type groove or dovetail, the bottom of translation piece (70) is fixed with slider (71), slider (71) sliding connection in spout (32), be equipped with location inclined hole (72) in translation piece (70), down tube (63) sliding connection is in location inclined hole (72), translation piece (70) are close to be equipped with down half mould cavity (73) on one side of cylinder mould core block (31), down half mould cavity (73) are including first semicircle chamber (731) and second semicircle chamber (732) of connecting from top to bottom, cylinder mould core block (31), The first semicircular cavity (731) and the second semicircular cavity (732) have a common axis, the radius of the first semicircular cavity (731) is smaller than that of the second semicircular cavity (732), and the translation block (70) is provided with n hole forming mechanisms (80);

hole forming mechanism (80) including connect in shaping jack (81) on second semicircle chamber (732), push rod (22) can insert in shaping jack (81), one side vertical connection of shaping jack (81) has lift chamber (82), the bottom in lift chamber (82) is connected with spring chamber (83), sliding connection porose shaping pole (811) in shaping jack (81), sliding connection has diaphragm (821) in lift chamber (82), be equipped with second spring (831) in spring chamber (83), diaphragm (821) fixed connection in one side of hole shaping pole (811), the both ends of second spring (831) are connected diaphragm (821) with the chamber bottom of spring chamber (83).

2. The die-casting die for the perforated metal part as claimed in claim 1, wherein a limiting plate (13) is fixed at the bottom end of the guide post (11), a limiting cavity (64) is connected to the bottom of the guide hole (62), and the limiting plate (13) is slidably connected in the limiting cavity (64).

3. A die casting mould for a perforated metal element according to claim 1, characterized in that the bottom of the upper mould block (20) is provided with an upper mould cavity (23).

4. The die-casting die for the perforated metal part as claimed in claim 3, wherein an ejector cavity (41) is arranged in the lower die holder (40), an ejector plate (91) is connected in the ejector cavity (41) in a sliding manner, an ejector pin (92) is fixed on the ejector plate (91), a third spring (93) is connected between the ejector plate (91) and the lifting cavity (82), an ejector hole (311) is arranged in the cylindrical die core block (31), and the ejector pin (92) is connected in the ejector hole (311) in a sliding manner.

5. A die-casting die for a metal piece with a hole as claimed in claim 4, characterized in that a through hole (51) is formed in the lower backing plate (50), and a guide block (94) slidably connected in the through hole (51) is fixed at the bottom of the ejector plate (91).