CN215144592U

CN215144592U - Main bearing cap die-casting mold core for automobile rotating shaft

Info

Publication number: CN215144592U
Application number: CN202122667305.6U
Authority: CN
Inventors: 陆豪斌; 王晓艳; 叶兴祥; 张迪; 匡雄
Original assignee: Ningbo Beilun Xinyu Mold Tooling & Casting Co ltd
Current assignee: Ningbo Beilun Xinyu Mold Tooling & Casting Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2021-12-14
Anticipated expiration: 2031-11-03

Abstract

The utility model relates to a main bearing cap die-casting mold core for car pivot, loose core including last mold core, lower mold core and preceding, last mold core and lower mold core be and stack and arrange, form the die cavity structure between the two, last mold core and lower mold core between the front-mounting loose core, the rear portion install the back loose core, the left part is installed the left side and is loosed core, the right part is installed the right side and is loosed core, last mold core under the die cavity groove department at terminal surface middle part be provided with a plurality of be the recess lug that vertical semicircle slice was arranged, the recess lug be vertical interval and arrange side by side, the lower terminal surface of recess lug on be provided with horizontal shaping face, lower mold core up end middle part arrange the face of exhausting that matches with horizontal shaping face, the front and back end of the face of exhausting on all be provided with the cinder ladle groove, horizontal shaping face and the face of exhausting between leave the clearance. The utility model has the characteristics of improve product quality, reduction in production cost, ensure that accumulated heat is discharged etc.

Description

Main bearing cap die-casting mold core for automobile rotating shaft

Technical Field

The utility model relates to a car pivot bearing cap technical field especially relates to a main bearing cap die-casting mold core for car pivot.

Background

When the main shaft bearing cover of production car, need set up the groove body structure of indent on the lid, this groove body structure mainly is used for making things convenient for arranging and the location of bearing and position sleeve, because the longitudinal depth of groove body is great, and far away with the position of runner, can cause groove body shaping portion long-pending heat to appear, and be difficult for discharging the processing to lead to the inside shrinkage cavity that appears of groove body, in order to solve above-mentioned problem, need design a new mold core structure.

Disclosure of Invention

The utility model aims to solve the technical problem that a main bearing cap die-casting mold core for car pivot is provided for guarantee that the gas shrinkage cavity can not appear in the cell body structure, have and improve product quality, reduction in production cost, ensure characteristics such as long-pending heat removal.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a main bearing cap die-casting mold core for car pivot, includes upper die core, lower mold core and preceding loose core, upper die core and lower mold core be and stack and arrange, form the die cavity structure between the two, upper die core and lower mold core between the front-mounting loose core, after-mounting loose core, the left part is installed and is left loose core, the right part is installed and is right loose core, upper die core under the die cavity department at terminal surface middle part be provided with a plurality of be the recess lug that vertical semicircle slice was arranged, the recess lug be vertical interval and arrange side by side, the lower terminal surface of recess lug on be provided with horizontal shaping face, lower mold core up end middle part arrange the exhaust face that matches with horizontal shaping face, the front and back end of exhaust face on all be provided with the cinder ladle groove, horizontal shaping face and exhaust face between leave the clearance.

As a supplement to the technical scheme, the upper portion of the front core pulling is higher than the upper end face of the lower mold core, a matching groove attached to the upper portion of the front core pulling is formed in the upper mold core, a main runner groove is formed in the matching groove, and the branch ends of the main runner groove extend to the positions of the intervals of the groove lugs.

As a supplement to the technical scheme, an auxiliary runner butted with the right part of the die cavity is arranged at the right part of the lower end surface of the upper die core.

As a supplement to the technical scheme, the right end of the left core pulling is provided with an interface groove, the left end of the right core pulling is provided with a shaft body groove, the left part of the upper mold core is provided with an interface protrusion matched with the interface groove, and the right part of the upper mold core is provided with a shaft body protrusion matched with the shaft body groove.

As a supplement to the technical scheme, an end part exhaust slag ladle is arranged on the rear side of the interface bulge, and an exhaust shallow groove extending to the left side of the mold is arranged on one side of the end part exhaust slag ladle.

As a supplement to the technical scheme, the rear part of the lower end surface of the upper mold core is provided with a plurality of rear exhaust grooves butted with the mold cavity structure, the right part of the lower end surface of the upper mold core is provided with an auxiliary slag ladle groove butted with the right end of the mold cavity structure, and the auxiliary slag ladle groove is butted with the rear exhaust grooves.

As a supplement to the technical scheme, the middle part of the upper mold core is provided with transverse cooling pipes penetrating through the left side and the right side of the upper mold core, the middle part of the upper mold core is vertically provided with a plurality of spot cooling pipes which are in one-to-one correspondence with the groove lugs, and the spot cooling pipes are communicated with the transverse cooling pipes.

Has the advantages that: the utility model relates to a main bearing cap die-casting mold core for car pivot, through setting up a plurality of recess lug, be used for making things convenient for the positioning groove's of lid shaping, thereby ensure that the product is complete, through setting up exhaust face and cinder ladle groove, make the long-pending heat of product bottom discharge, make the gas shrinkage cavity can not appear in this portion, thereby ensure product quality, through setting up the mainstream way groove, make aluminium liquid can fill fast in the die cavity structure, mainstream way groove flow direction interval position simultaneously, make the structure of this portion of product more complete, filling speed also obtains accelerating, reduce product shaping required time, have and improve product quality, and the production cost is reduced, ensure characteristics such as long-pending heat discharge.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a structural view of the lower mold core of the present invention;

fig. 3 is a structural view of the upper mold core according to the present invention;

FIG. 4 is a structural view of a slag ladle groove according to the present invention;

fig. 5 is a front view of the present invention in full section.

The figure is as follows: 1. the mold comprises an upper mold core, 2, a lower mold core, 3, a front core pulling, 4, a rear core pulling, 5, a left core pulling, 6, a right core pulling, 7, a groove lug, 8, a horizontal forming surface, 9, an exhaust surface, 10, a slag ladle groove, 11, an interface groove, 12, a shaft body groove, 13, an interface bulge, 14, a shaft body bulge, 15, a matching groove, 16, a main runner groove, 17, an auxiliary runner, 18, a rear exhaust groove, 19, an auxiliary slag ladle groove, 20, an exhaust shallow groove, 21, a transverse cooling pipe, 22 and a spot cooling pipe.

Detailed Description

The present invention will be further described 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. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

The embodiment of the utility model relates to a main bearing cap die-casting mold core for an automobile rotating shaft, as shown in figures 1-5, comprising an upper mold core 1, a lower mold core 2 and a front loose core 3, wherein the upper mold core 1 and the lower mold core 2 are arranged in a stacking way, a mold cavity structure is formed between the upper mold core 1 and the lower mold core 2, the front loose core 3 is arranged at the front part between the upper mold core 1 and the lower mold core 2, the rear loose core 4 is arranged at the rear part, the left loose core 5 is arranged at the left part, and the right loose core 6 is arranged at the right part, a plurality of groove lugs 7 which are arranged in a vertical semicircular sheet shape are arranged at the mold cavity groove at the middle part of the lower end surface of the upper mold core 1, the groove lugs 7 are arranged side by side at longitudinal intervals, a horizontal forming surface 8 is arranged on the lower end surface of the groove lugs 7, an exhaust surface 9 matched with the horizontal forming surface 8 is arranged at the middle part of the upper end surface of the lower mold core 2, slag ladle grooves 10 are arranged on the front and back ends of the exhaust surface 9, and a gap is reserved between the horizontal forming surface 8 and the exhaust surface 9.

In the technical scheme, a plurality of groove lugs 7 are arranged on the lower end surface of an upper mold core 1 to enable the inner part of a cover body to have positioning grooves for positioning a main shaft and a bearing, the groove lugs 7 are arranged at intervals, so that the groove can fix a single shaft sleeve or bearing for positioning, the adhesion of adjacent shaft sleeves or bearings is avoided, the arrangement of the horizontal forming surface 8 and the exhaust surface 9 is convenient for arranging the slag ladle groove 10, the accumulated heat of the slag ladle groove 10 is exhausted, the product is prevented from generating a shrinkage cavity, the product quality is improved, a gap is reserved between the horizontal forming surface 8 and the exhaust surface 9, so that a thinner end surface is formed at the part, and a slag ladle in the slag ladle groove 10 can be reserved on the outer surface of the part, the cover body thickness is ensured while heat accumulation discharge is ensured, and the inner structure of the product cannot be influenced by the slag ladle structure.

As a supplement to the technical solution, the upper portion of the front core pulling 3 is higher than the upper end surface of the lower mold core 2, the upper mold core 1 is provided with a matching groove 15 attached to the upper portion of the front core pulling 3, the matching groove 15 is provided with a main runner groove 16, and the diverging ends of the main runner groove 16 extend to the interval positions of the groove bumps 7.

Through setting up the matching groove 15 among this technical scheme for preceding 3 of loosing core can cooperate the equipment with last mold core 1, through setting up the mainstream way groove 16, make and form aluminium liquid injection runner between last mold core 1 and the preceding 3 of loosing core, simultaneously through the interval position department that extends to recess lug 7 with the branching end of mainstream way groove 16, make aluminium liquid enter into the die cavity structure fast in, accelerate filling speed, thereby improve the quality and the production efficiency of product.

As a supplement to the present technical solution, an auxiliary runner 17 butted with the right part of the mold cavity is arranged at the right part of the lower end surface of the upper mold core 1.

The right part structure of die cavity is comparatively complicated among this technical scheme, in order to ensure that aluminium liquid can rush into fast, has set up the auxiliary runner 17 that flows to the die cavity right part alone.

As a supplement to the present technical solution, the right end of the left core pulling 5 is provided with an interface groove 11, the left end of the right core pulling 6 is provided with a shaft body groove 12, the left portion of the upper mold core 1 is provided with an interface protrusion 13 matched with the interface groove 11, and the right portion of the upper mold core 1 is provided with a shaft body protrusion 14 matched with the shaft body groove 12.

Through setting up axis body recess 12 and axis body arch 14 among this technical scheme for the lid right-hand member forms a half arc shell structure, is used for matching the equipment with the right-hand member of transmission shaft, and through setting up interface recess 11 and interface arch 13, forms the interface structure of lid left end.

As a supplement to the technical solution, an end portion exhaust slag ladle is arranged at the rear side of the interface bulge 13, and an exhaust shallow groove 20 extending to the left side of the mold is arranged at one side of the end portion exhaust slag ladle.

In order to ensure that no air shrinkage cavity appears at the structural part of the product interface, an end part exhaust slag bag and an exhaust shallow groove 20 are arranged, so that accumulated heat is discharged, and the product quality is improved.

As a supplement to the technical solution, the rear part of the lower end surface of the upper mold core 1 is provided with a plurality of rear exhaust grooves 18 butted with the mold cavity structure, the right part of the lower end surface of the upper mold core 1 is provided with an auxiliary slag ladle groove 19 butted with the right end of the mold cavity structure, and the auxiliary slag ladle groove 19 is butted with the rear exhaust grooves 18.

Through setting up rear portion air discharge duct 18 among this technical scheme for discharge the long-pending heat in product upper portion from the mould rear side fast, ensure product quality, through setting up supplementary cinder ladle groove 19, discharge the long-pending heat of product right-hand member, ensure that the product right-hand member can not appear the gas shrinkage cavity.

As a supplement to the technical scheme, the middle of the upper mold core 1 is provided with transverse cooling pipes 21 penetrating through the left side and the right side of the upper mold core 1, the middle of the upper mold core 1 is vertically provided with a plurality of spot cooling pipes 22 corresponding to the groove bumps 7 one by one, and the spot cooling pipes 22 are communicated with the transverse cooling pipes 21.

Through setting up some cold tubes 22, cool off recess lug 7 and product lower part position fast, improve product shaping speed, ensure simultaneously that the gas shrinkage cavity phenomenon can not appear in the product lower part, through setting up horizontal cooling tube 21, ensure the cooling water backward flow.

Examples

When the technical scheme is used for producing products, firstly, the upper mold core 1 and the lower mold core 2 are matched through a mold and a matching machine, aluminum liquid is injected from a pouring gate after the product is finished, the aluminum liquid enters a mold cavity through a main runner groove 16, the aluminum liquid quickly enters the mold cavity through a split end because the tail end of the main runner is the split end, meanwhile, in order to ensure the quick forming of the right part of the product, the right part of the main runner groove 16 flows to an auxiliary runner 17, the auxiliary runner 17 independently fills the right part of the product, when the mold cavity is filled completely, accumulated heat at the bottom of the product is discharged due to a slag ladle groove 10 on an exhaust surface 9 on the bottom of the mold cavity, so that the air shrinkage cavity at the part is avoided, meanwhile, the accumulated heat in the whole mold cavity is discharged from a rear exhaust groove 18, the integral forming of the product is ensured, meanwhile, the air shrinkage cavity is avoided, in order to improve the production efficiency of the product, the whole mold is cooled through a spot cooling pipe 22, the cooling water is discharged through the transverse cooling pipe 21, so that the circulation of the cooling water is ensured, and after the temperature of the mold is reduced, the product is taken out through the mold opening operation.

Claims

1. The utility model provides a main bearing cap die-casting mold core for automobile rotating shaft, includes mold core (1), lower mold core (2) and preceding (3) of loosing core, last mold core (1) and lower mold core (2) be and stack and arrange, form the die cavity structure between the two, last mold core (1) and lower mold core (2) between front-mounted loose core (3), rear portion install after loose core (4), the left portion is installed and is left loose core (5), the right portion is installed the right side and is loosed core (6), its characterized in that: last die cavity groove department at terminal surface middle part under mold core (1) be provided with recess lug (7) that a plurality of is vertical semicircle slice and arranges, recess lug (7) be longitudinal separation and arrange side by side, the lower terminal surface of recess lug (7) on be provided with horizontal shaping face (8), lower die core (2) up end middle part arrange exhaust face (9) that match with horizontal shaping face (8), the front and back end of exhaust face (9) on all be provided with cinder ladle groove (10), horizontal shaping face (8) and exhaust face (9) between leave the clearance.

2. The die-casting core for a main bearing cap of an automotive rotating shaft according to claim 1, wherein: preceding upper portion of loosing core (3) be higher than the up end of lower mould core (2), last mould core (1) on be provided with preceding matching recess (15) of loosing core (3) upper portion laminating, matching recess (15) on be provided with main runner groove (16), the branching end of main runner groove (16) all extend to the interval position department of recess lug (7).

3. The die-casting core for a main bearing cap of an automotive rotating shaft according to claim 1, wherein: and an auxiliary runner (17) butted with the right part of the die cavity is arranged at the right part of the lower end surface of the upper die core (1).

4. The die-casting core for a main bearing cap of an automotive rotating shaft according to claim 1, wherein: the right-hand member department of loosing core (5) on a left side be provided with interface recess (11), the left end department of loosing core (6) on the right side be provided with axis body recess (12), the left part of last mold core (1) be provided with interface arch (13) that match with interface recess (11), the right part department of last mold core (1) be provided with axis body arch (14) that match with axis body recess (12).

5. The die-casting core for a main bearing cap of an automotive rotating shaft according to claim 4, wherein: an end part exhaust slag ladle is arranged on the rear side of the interface bulge (13), and an exhaust shallow groove (20) extending to the left side of the mold is arranged on one side of the end part exhaust slag ladle.

6. The die-casting core for a main bearing cap of an automotive rotating shaft according to claim 1, wherein: the rear part of the lower end face of the upper mold core (1) is provided with a plurality of rear exhaust grooves (18) butted with the mold cavity structure, the right part of the lower end face of the upper mold core (1) is provided with an auxiliary slag ladle groove (19) butted with the right end of the mold cavity structure, and the auxiliary slag ladle groove (19) is butted with the rear exhaust grooves (18).

7. The die-casting core for a main bearing cap of an automotive rotating shaft according to claim 1, wherein: the cooling device is characterized in that transverse cooling pipes (21) penetrating through the left side and the right side of the upper mold core (1) are arranged in the middle of the upper mold core (1), a plurality of spot cooling pipes (22) corresponding to the groove lugs (7) one to one are vertically arranged in the middle of the upper mold core (1), and the spot cooling pipes (22) are communicated with the transverse cooling pipes (21).