CN106583655B

CN106583655B - Copper alloy precision casting spare casting mold

Info

Publication number: CN106583655B
Application number: CN201710059251.0A
Authority: CN
Inventors: 徐正茂; 黄爱军
Original assignee: Falcon Aerotech Ltd
Current assignee: Falcon Aerotech Ltd
Priority date: 2017-01-24
Filing date: 2017-01-24
Publication date: 2020-10-27
Anticipated expiration: 2037-01-24
Also published as: CN106583655A

Abstract

The invention discloses a copper alloy precision casting mold in the technical field of precision casting, which comprises a bottom plate, wherein the left side and the right side of the bottom plate are movably connected with locking rods through hinges, the left end and the right end of the top of the bottom plate are symmetrically provided with movable cushion blocks, the tops of the two groups of movable cushion blocks are connected with a lower section mold, the top of the upper section mold is provided with a pouring gate, the left end and the right end of the upper section mold are symmetrically provided with upper section mold wrenches, the left end and the right end of the lower section mold are provided with lower section mold wrenches, the top end of the locking rod is provided with a locking device, the locking device is positioned at the top of the upper section mold, the bottom of the lower section mold is connected with a material pushing sleeve, and the top of the material pushing sleeve is connected with a cavity. Through the design of the material pushing sleeve, the demolding process is simple and reliable.

Description

Copper alloy precision casting spare casting mold

Technical Field

The invention relates to the technical field of precision casting, in particular to a casting mold for a copper alloy precision casting part.

Background

Copper alloy with zinc as the major additive element for brass molding has attractive yellow molding and is generally referred to as brass. The copper-zinc binary alloy is called common brass or simple brass. The three-element or more brass is called special brass or complex brass. Brass alloys containing less than 36% zinc are composed of solid solution and have good cold workability, and as 30% zinc brass are commonly used to make bullet case molding devices commonly known as bullet case brass or hepta-tri brass.

Forging is an old and important process in modern industry. Today in modern industry, what is presented to our eyes is a fully automatic high speed forging line, and forging is direct forming by deforming metal using a die having the same shape as a formed part, so that it is suitable for mass production. However, the existing casting mold for the copper alloy precision casting part is difficult to control, so that a finished product does not conform to the specification, and the cost is wasted.

Disclosure of Invention

The invention aims to provide a casting mold for a copper alloy precision casting part, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a copper alloy precision casting spare casting mold, includes the bottom plate, there is the check lock lever the left and right sides of bottom plate through hinge swing joint, both ends symmetry is equipped with movable cushion about the top of bottom plate, and is two sets of the top of movable cushion is connected with down the section mould, the top of lower section mould is connected with the cope match-plate pattern, open at the top of cope match-plate pattern has the sprue gate, connect through the locating pin between cope match-plate pattern and the lower section mould, cope match-plate pattern spanner is installed to both ends symmetry about the cope match-plate pattern, lower section mould spanner is installed at both ends about the lower section mould, the top of check lock lever is equipped with locking device, and locking device is located the top of cope match-plate pattern, the bottom of lower section mould is connected with.

Preferably, the pouring gate comprises a transverse flow channel, and the top of the transverse flow channel is connected with a riser through a necking flow channel.

Preferably, the locking device comprises an upper locking ring and a lower locking ring, the left ends of the upper locking ring and the lower locking ring are movably connected through a pin shaft, the right ends of the upper locking ring and the lower locking ring are connected with a locking block, and the locking block is in threaded connection with a locking screw.

Preferably, the left end and the right end of the inner cavity of the bottom plate are symmetrically provided with positioning screws convenient to fix, and the locking rod is provided with through holes matched with the upper die spanner and the lower die spanner.

Preferably, the left end and the right end of the upper section die and the lower section die are both provided with positioning holes, and the positioning pins are installed in the positioning holes.

Compared with the prior art, the invention has the beneficial effects that: the invention has simple and novel structure, high qualification rate of the cast finished product, good quality and cost saving, ensures the position precision of the formed part by using the positioning pin, and ensures the simple and reliable demolding process by designing the material pushing sleeve.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a sprue gate according to the present invention;

fig. 3 is a schematic structural diagram of the locking device of the present invention.

In the figure: the device comprises a base plate 1, a locking rod 2, a movable cushion block 3, a lower section die 4, an upper section die 5, a pouring gate 6, a riser 61, a necking runner 62, a transverse runner 63, a positioning pin 7, a locking device 8, an upper locking ring 81, a lower locking ring 82, a pin shaft 83, a locking block 84, a locking screw 85, an upper section die wrench 9, a lower section die wrench 10, a material pushing sleeve 11 and a cavity 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a copper alloy precision casting spare casting mold, includes bottom plate 1, there is check lock lever 2 bottom plate 1's the left and right sides through hinge swing joint, bottom plate 1's top left and right sides both ends symmetry is equipped with movable cushion 3, and is two sets of movable cushion 3's top is connected with down section mould 4, the top of down section mould 4 is connected with cope pattern mould 5, open at the top of cope pattern mould 5 has sprue gate 6, connect through locating pin 7 between cope pattern mould 5 and the down section mould 4, cope pattern mould spanner 9 is installed to both ends symmetry about cope pattern mould 5, down section mould spanner 10 is installed at both ends about 4, the top of check lock lever 2 is equipped with locking device 8, and locking device 8 is located the top of cope pattern mould 5, the bottom of down section mould 4 is connected with and pushes away material cover 11, the top that pushes away material cover 11 is connected with die cavity 12.

The pouring gate 6 comprises a transverse flow channel 63, the top of the transverse flow channel 63 is connected with a riser 61 through a necking flow channel 62, the locking device 8 comprises an upper locking ring 81 and a lower locking ring 82, the left ends of the upper locking ring 81 and the lower locking ring 82 are movably connected through a pin shaft 83, the right ends of the upper locking ring 81 and the lower locking ring 82 are connected with a locking block 84, the locking block 84 is connected with a locking screw 85 through threads, positioning screws convenient to fix are symmetrically arranged at the left end and the right end of an inner cavity of the bottom plate 1, a through hole matched with the upper die wrench 9 and the lower die wrench 10 is formed in the locking rod 2, positioning holes are formed in the left end and the right end of the upper die 5 and the lower die 4, and the positioning pins 7 are installed in the positioning holes.

The working principle is as follows: the locking rod 2 is movably connected with the bottom plate 1 through a hinge, after a movable cushion block 3, a lower die 4 and an upper die 5 are sequentially assembled and combined on the bottom plate 1, the locking rod 2 is rotated to be in a vertical state on the bottom plate 1, the locking screw 85 is screwed to lock the whole die, a copper alloy metal solution is injected into a cavity 12 formed between the upper die 5 and the lower die 4 through a pouring gate 6, wherein the pouring gate 6 consists of a dead head 61, a necking runner 62 and a transverse runner 63, the edge of the dead head 61 is set to be in the same structure as the transverse runner 63, turbulence and metal splashing are counteracted, metal liquid is prevented from splashing out of the pouring gate 6 in the pouring process of the copper alloy, after the copper alloy solution in the cavity 12 is cooled and formed, the movable cushion block 3 is drawn out, the locking screw 85 is loosened, the upper die 5 is taken out through an upper die wrench 9, and the lower die 4 is pressed downwards towards the bottom plate 1 through the lower die wrench 10, under the action of the material pushing sleeve 11, the cooled and formed copper alloy is ejected out of the lower die 4, namely the whole pouring process is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a copper alloy precision casting spare casting mold, includes bottom plate (1), its characterized in that: the improved structure of the high-speed forging die is characterized in that locking rods (2) are movably connected to the left side and the right side of the bottom plate (1) through hinges, movable cushion blocks (3) are symmetrically arranged at the left end and the right end of the top of the bottom plate (1), lower dies (4) are connected to the tops of the two groups of movable cushion blocks (3), upper dies (5) are connected to the tops of the lower dies (4), pouring openings (6) are formed in the tops of the upper dies (5) and the lower dies (4) through positioning pins (7), upper die wrenches (9) are symmetrically installed at the left end and the right end of the upper dies (5), lower die wrenches (10) are installed at the left end and the right end of the lower dies (4), locking devices (8) are arranged at the top ends of the locking rods (2), the locking devices (8) are located at the tops of the upper dies (5), and material pushing sleeves, the top of the material pushing sleeve (11) is connected with the cavity (12), the pouring gate (6) comprises a transverse flow passage (63), the top of the transverse flow passage (63) is connected with a riser (61) through a necking flow passage (62), the locking device (8) comprises an upper locking ring (81) and a lower locking ring (82), the left ends of the upper locking ring (81) and the lower locking ring (82) are movably connected through a pin shaft (83), the right ends of the upper locking ring (81) and the lower locking ring (82) are connected with a locking block (84), the locking block (84) is in threaded connection with a locking screw (85), the left end and the right end of the inner cavity of the bottom plate (1) are symmetrically provided with positioning screws convenient to fix, the locking rod (2) is provided with a through hole matched with the upper die spanner (9) and the lower die spanner (10), the edge of the riser (61) is provided with the same structure as the transverse flow channel (63).

2. The casting mold for copper alloy precision castings according to claim 1, wherein: the left end and the right end of the upper section mould (5) and the lower section mould (4) are both provided with positioning holes, and the positioning pins (7) are arranged in the positioning holes.