CN111318667A

CN111318667A - Die-casting precision motor casing die

Info

Publication number: CN111318667A
Application number: CN201811532903.9A
Authority: CN
Inventors: 胡鲁明; 李光林; 周金卫; 张宏; 樊玉锦; 李峰; 程建良
Original assignee: Ningbo Bowei Mould Metal Products Co ltd
Current assignee: Ningbo Bowei Mould Metal Products Co ltd
Priority date: 2018-12-14
Filing date: 2018-12-14
Publication date: 2020-06-23

Abstract

The invention relates to a die-casting precision motor shell die, which comprises an upper die holder, an upper die core and a lower die core, wherein the lower die holder is arranged at the lower end of the upper die holder, the upper die core and the lower die core which are stacked up and down are arranged between the lower die holder and the upper die holder, core-pulling structures are arranged between the lower die holder and the upper die holder and are positioned at the front, the back, the left and the right of the upper die core and the lower die core, each core-pulling, slider and hydro-cylinder, take-up housing slidable mounting is in the die holder upper end, take-up housing one end is provided with the slider that inserts in the die cavity, the hydro-cylinder of the take-up housing other end and the installation of the die holder outside links to each other, the lower mould bottom plate is installed to the die holder lower extreme, the upper end mid-mounting of lower mould bottom plate has the vertical shaping post that inserts the die cavity in upper end, the inside cooling chamber that is provided with of shaping post, the both sides that lie in the shaping post in the lower mould bottom plate are provided with inlet tube and the outlet pipe that is linked. The invention has simple structure and long service life.

Description

Die-casting precision motor casing die

Technical Field

The invention relates to the technical field of dies, in particular to a die-casting precision motor shell die.

Background

The main factors influencing the quality of the motor shell are the structure of the die, the die is designed to be reasonable in structure, the reject ratio of the motor shell can be greatly reduced, and the defects that the product generates bubbles, is cold cut and the like can be avoided. In order to ensure that the mold can produce a motor casing with a complex structure, a core pulling structure, a cooling structure and the like which are reasonable in design are needed.

Disclosure of Invention

The invention aims to provide a die-casting precision motor casing die which is simple in structure and long in service life.

The technical scheme adopted by the invention for solving the technical problems is as follows: the die for die-casting the precision motor shell comprises an upper die base, an upper die core and a lower die core, wherein the lower die base is installed at the lower end of the upper die base, the upper die core and the lower die core which are stacked up and down are installed between the lower die base and the upper die base, core-pulling structures are arranged between the lower die base and the upper die base and are positioned at the front, the rear, the left and the right of the upper die core and the lower die core respectively, each core-pulling structure comprises a slider base, a slider and an oil cylinder, the slider base is installed at the upper end of the lower die base in a sliding mode, the slider inserted into a die cavity is arranged at one end of the slider base, the other end of the slider base is connected with the oil cylinder installed at the outer side of the lower die base, a lower die base plate is installed at the lower end of the lower die base, a forming column with the upper end vertically inserted into the die, the four sliders surround the forming column.

As a supplement to the technical scheme of the invention, guide posts are vertically arranged at four corners of the upper end of the lower die holder and are matched with guide sleeves arranged on the upper die holder.

As a supplement to the technical scheme of the invention, the upper end of the upper die base is provided with an exhaust groove at one side of each guide sleeve.

As a supplement to the technical scheme of the invention, a sprue bush is vertically arranged in the front part of the upper die base, and a sprue spreader matched with the sprue bush is arranged at the upper end of a sliding block base of the front core pulling structure.

As a supplement to the technical scheme of the invention, cooling pipelines are arranged in the sliding block and the sliding block seat.

As a supplement to the technical scheme of the invention, the four corners of the lower end of the upper mold core are respectively provided with a limiting column which is matched with a positioning groove arranged on the lower mold core.

As a supplement to the technical scheme of the invention, the bottom of the lower die bottom plate is provided with a through hole below the forming column, and the through hole is internally provided with a screw for fixing the forming column.

Has the advantages that: the invention relates to a die-casting precision motor casing die, an upper die core, a lower die core, a forming column and four sliding blocks jointly form a die cavity, the middle part of the upper end of a lower die bottom plate is provided with the forming column, the upper end of the forming column is vertically inserted into the die cavity, the forming column and the lower die bottom plate are fixed through screws, the forming surface of the forming column is easy to lose, only the forming column needs to be frequently replaced, the whole lower die does not need to be replaced, the die cost is greatly saved, a cooling cavity is arranged inside the forming column, a water inlet pipe and a water outlet pipe which are communicated with the cooling cavity are arranged on two sides of the forming column in the lower die bottom plate, water enters the cooling cavity through the water inlet pipe and then comes out of the water outlet pipe, the cooling of. The four sliding blocks surround the side wall of the cavity, and the service life of the whole die can be prolonged as long as the sliding blocks are replaced.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the present invention in a front view;

FIG. 3 is a schematic diagram of the internal structure of the present invention viewed from the left;

FIG. 4 is a schematic structural view of the lower die holder according to the present invention;

fig. 5 is a schematic structural view of an upper die base according to the present invention.

The figure is as follows: 1. the mold comprises an upper mold base, 2, a core-pulling structure, 3, a lower mold base plate, 4, a forming column, 5, a limiting column, 6, an exhaust groove, 7, a guide pillar, 8, a guide sleeve, 9, an upper mold core, 10, a lower mold core, 11, a water inlet pipe, 12, a cooling cavity, 13, a water outlet pipe, 14, the forming column, 15, an oil cylinder, 16, a slider base, 17, a slider, 18, a sprue bush, 19, a spreader cone, 20, a cooling pipeline, 21 and a positioning groove.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

The embodiment of the invention relates to a die-casting precision motor shell die, which comprises an upper die holder 1, an upper die core 9 and a lower die core 10, wherein the lower die holder 4 is arranged at the lower end of the upper die holder 1, the upper die core 9 and the lower die core 10 which are stacked up and down are arranged between the lower die holder 4 and the upper die holder 1, core pulling structures 2 are respectively arranged between the lower die holder 4 and the upper die holder 1 and positioned at the front, the back, the left and the right of the upper die core 9 and the lower die core 10, each core pulling structure 2 comprises a slider holder 16, a slider 17 and an oil cylinder 15, the slider holder 16 is slidably arranged at the upper end of the lower die holder 4, one end of the slider holder 16 is provided with the slider 17 inserted into a die cavity, the other end of the slider holder 16 is connected with the oil cylinder 15 arranged at the outer side of the lower die holder 4, the lower die base plate 3 is arranged at the lower end of the, the inside cooling chamber 12 that is provided with of shaping post 14, the lower mould bottom plate 3 in lie in the both sides of shaping post 14 and be provided with inlet tube 11 and outlet pipe 13 that are linked together with cooling chamber 12, four sliders 17 surround shaping post 14.

Guide posts 7 are vertically arranged at four corners of the upper end of the lower die holder 4, and the guide posts 7 are matched with guide sleeves 8 arranged on the upper die holder 1.

And an exhaust groove 6 is formed in one side, located on each guide sleeve 8, of the upper end of the upper die base 1.

A sprue bush 18 is vertically arranged in the front part of the upper die holder 1, and a shunting cone 19 matched with the sprue bush 18 is arranged at the upper end of a sliding block seat 16 of the front core-pulling structure 2.

Cooling pipelines 20 are arranged in the slide block 17 and the slide block seat 16.

Four corners of the lower end of the upper die core 9 are provided with limiting columns 5, and the limiting columns 5 are matched with positioning grooves 21 arranged on the lower die core 3.

The bottom of the lower die bottom plate 3 is provided with a through hole below the forming column 14, and the through hole is internally provided with a screw for fixing the forming column 14.

Examples

Go up mold core 9, lower mold core 10, become moulding post 14 and four sliders 17 group one-tenth die cavity jointly, the upper end mid-mounting of lower mould bottom plate 3 has the vertical moulding post 14 that inserts the die cavity in upper end, through the fix with screw between moulding post 14 and the lower mould bottom plate 3, the easy loss of shaping face of moulding post 14, as long as often change moulding post 14 can, need not change whole lower mould, the mould cost has been practiced thrift greatly, the inside cooling chamber 12 that is provided with of moulding post 14, the both sides that lie in moulding post 14 in lower mould bottom plate 3 are provided with inlet tube 11 and outlet pipe 13 that are linked together with cooling chamber 12, it intakes toward cooling chamber 12 through inlet tube 11, come out from outlet pipe 13 again, realize the cooling of moulding post 14, the product laminating of moulding post 14 and formation, can the temperature of quick reduction product. The four sliding blocks 17 enclose the side wall of the cavity, and the service life of the whole die can be prolonged as long as the sliding blocks 17 are replaced.

Claims

1. The utility model provides a die-casting precision motor shell mould, includes upper die base (1), goes up mold core (9) and lower mold core (10), upper die base (1) lower extreme install die holder (4), install between this die holder (4) and upper die base (1) about stack last mold core (9) and lower mold core (10), its characterized in that: core pulling structures (2) are arranged between the lower die holder (4) and the upper die holder (1) and are positioned at the front, the back, the left and the right of the upper die core (9) and the lower die core (10), each core pulling structure (2) comprises a slider holder (16), a slider (17) and an oil cylinder (15), the slider holders (16) are slidably mounted at the upper ends of the lower die holders (4), the sliders (17) inserted into the die cavities are arranged at one ends of the slider holders (16), the other ends of the slider holders (16) are connected with the oil cylinders (15) mounted at the outer sides of the lower die holders (4), the lower die base plate (3) is mounted at the lower end of the lower die holder (4), a forming column (14) with the upper end vertically inserted into the die cavities is mounted in the middle part of the upper end of the lower die base plate (3), a cooling cavity (12) is arranged inside the forming column (14), a water inlet pipe (11) and a water outlet pipe (13) communicated with the cooling cavity (, the four sliders (17) surround the forming column (14).

2. The die-casting precision motor casing die of claim 1, wherein: guide posts (7) are vertically arranged at four corners of the upper end of the lower die holder (4), and the guide posts (7) are matched with guide sleeves (8) arranged on the upper die holder (1).

3. The die-casting precision motor casing die of claim 2, wherein: and an exhaust groove (6) is formed in one side, located on each guide sleeve (8), of the upper end of the upper die holder (1).

4. The die-casting precision motor casing die of claim 1, wherein: a sprue bush (18) is vertically arranged in the front of the upper die base (1), and a sprue spreader (19) matched with the sprue bush (18) is arranged at the upper end of a sliding block base (16) of the front core-pulling structure (2).

5. The die-casting precision motor casing die of claim 1, wherein: and cooling pipelines (20) are arranged in the sliding block (17) and the sliding block seat (16).

6. The die-casting precision motor casing die of claim 1, wherein: four corners of the lower end of the upper die core (9) are provided with limiting columns (5), and the limiting columns (5) are matched with positioning grooves (21) arranged on the lower die core (3).

7. The die-casting precision motor casing die of claim 1, wherein: and a through hole is formed in the bottom of the lower die bottom plate (3) below the forming column (14), and a screw for fixing the forming column (14) is arranged in the through hole.