Die-casting forming die for thin-wall steering gear shell

Abstract

The utility model discloses a thin-wall steering gear shell die-casting forming die which comprises an upper die block and a lower die block, the bottom of the upper die block is provided with an upper die groove and a runner, the top of the lower die block is provided with a lower die groove and a runner, the upper die groove and the lower die groove form a main cavity after the upper die block and the lower die block are encircled, and each port of the main cavity is provided with a plurality of cores and sliding block inserts; caulking grooves are vertically and symmetrically formed in the bottom of the upper module and the top of the lower module, the caulking grooves are located in the side portion of the steering gear shell cylinder section of the main cavity and communicate with the main cavity, clamping blocks are embedded in the caulking grooves and slightly stretch into the main cavity, and the clamping blocks are made of the same material as the mold. Compared with the prior art, the fixture block is additionally arranged at the side part of the column body section of the steering gear shell of the mold, and the fixture block structure can counteract part of holding force generated during mold opening, so that a product is prevented from being lengthened, and the risk of cracking is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to die casting mould technical field especially relates to a thin wall steering gear housing die casting forming mould. BACKGROUND

[0002] Steering gear housing is an important component of automobile steering system, is used for supporting and fixed gear, rack, when rotating steering wheel, the gear in the steering gear rotates, drives the rack in the steering gear to move to the direction that the steering wheel rotates, increases the force that the steering wheel transmits to the steering drive mechanism and changes the transmission direction of force.

[0003] As Figure 1 The steering gear housing includes a hollow cylinder, and the cylinder is connected with a manual shaft shell and a gear shell. Figure 1 The upper arrow represents the direction of the holding force generated by the long core-pulling mold opening, and the traditional steering gear housing die casting forming mold does not have any anti-lengthening structure in this direction, which causes the steering gear housing to be easily lengthened in this direction due to the holding force, especially the 2.5mm thin-wall steering gear housing, which is prone to cracking after being lengthened, affecting the product quality. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a thin-wall steering gear housing die casting forming mold, a clamping block is additionally arranged on the side of the steering gear housing cylinder segment of the mold, the clamping block structure can offset part of the holding force generated during mold opening, prevent the product from being lengthened, and further reduce the risk of cracking, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A thin-wall steering gear housing die casting forming mold, comprising an upper mold block and a lower mold block, the bottom of the upper mold block is provided with an upper mold groove and a flow channel, the top of the lower mold block is provided with a lower mold groove and a flow channel, the upper mold groove and the lower mold groove form a main cavity after the upper mold block and the lower mold block are combined, and each port of the main cavity is provided with a plurality of core and slider inserts; the bottom of the upper mold block and the top of the lower mold block are symmetrically provided with an embedding groove, the embedding groove is located on the side of the steering gear housing cylinder segment of the main cavity, the embedding groove is communicated with the main cavity, a clamping block is embedded in the embedding groove, the clamping block slightly extends into the main cavity, and the material of the clamping block is the same as that of the mold.

[0007] A further improved scheme of the utility model is that the embedding groove comprises a first embedding groove, a second embedding groove and a third embedding groove, and the first clamping block, the second clamping block and the third clamping block are respectively embedded in the three embedding grooves.

[0008] A further improved scheme of the utility model is that the first clamping block, the second clamping block and the third clamping block are rectangular, the first clamping block and the second clamping block are on the same side, and the third clamping block is on one side.

[0009] The further improved scheme of the utility model discloses is that the upper module and the lower module are symmetrically provided with recesses, and the upper and lower recesses form a sub-cavity after the upper module and the lower module are combined.

[0010] The further improved scheme of the utility model discloses is that the sub-cavity is symmetrically distributed on both sides of the diverter housing column body segment of the main cavity.

[0011] The further improved scheme of the utility model discloses is that the sub-cavity is located between the second clamping block and the third clamping block.

[0012] The further improved scheme of the utility model discloses is that the thickness size of the clamping block is 0.5-3mm.

[0013] The further improved scheme of the utility model discloses is that the core is connected to the core pulling device, and the slider insert block is connected to the telescopic push-pull device.

[0014] The utility model discloses have beneficial effect:

[0015] The thin-wall diverter housing die-casting forming die of the utility model discloses, the clamping block is additionally arranged on the side portion of the diverter housing column body segment of the die, the clamping block structure can offset part of the holding force generated when opening the mold, prevents the product from being lengthened, and further reduces the risk of cracking.

[0016] The thin-wall diverter housing die-casting forming die of the utility model discloses, the upper module and the lower module are symmetrically provided with recesses, and the upper and lower recesses form a sub-cavity after the upper module and the lower module are combined, the support block formed in the sub-cavity is integrated with the diverter housing, and part of the holding force generated when opening the mold can be further offset, the product is prevented from being lengthened, and the risk of cracking is further reduced. DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of diverter housing.

[0018] Figure 2 It is the whole structure schematic diagram of the utility model.

[0019] Figure 3 It is the schematic diagram of the diverter housing in the lower module of the utility model.

[0020] Figure 4 It is the structure schematic diagram of the lower module of the utility model.

[0021] Figure 5 It is the schematic diagram of the diverter housing after die-casting of the utility model.

[0022] In the diagram: 1-Upper module, 2-Lower module, 3-Flow channel, 4-Main cavity, 5-Core, 6-Slider insert, 7-First slot, 8-Second slot, 9-Third slot, 10-First locking block, 11-Second locking block, 12-Third locking block, 13-Secondary cavity, 14-Steering gear housing, 1401-Column, 1402-Manual shaft housing, 1403-Gear housing, 15-Support block. Detailed Implementation

[0023] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1: As Figures 1-5 As shown, a die-casting mold for a thin-walled steering gear housing includes an upper module 1 and a lower module 2. The bottom of the upper module 1 is provided with an upper mold groove and a flow channel 3, and the top of the lower module 2 is provided with a lower mold groove and a flow channel 3. When the upper module 1 and the lower module 2 are closed, the upper mold groove and the lower mold groove form a main cavity 4. Each port of the main cavity 4 is provided with several cores 5 and slider inserts 6. The bottom of the upper module 1 and the top of the lower module 2 are symmetrically provided with grooves. The grooves are located on the side of the steering gear housing 14 column 1401 section of the main cavity 4, and the grooves are connected to the main cavity 4. A locking block is embedded in the groove, and the locking block extends slightly into the main cavity 4. The material of the locking block is the same as that of the mold.

[0025] The slots include a first slot 7, a second slot 8 and a third slot 9, and a first locking block 10, a second locking block 11 and a third locking block 12 are respectively installed in the three slots.

[0026] The first card block 10, the second card block 11 and the third card block 12 are rectangular, with the first card block 10 and the second card block 11 on the same side and the third card block 12 on one side.

[0027] The upper module 1 and the lower module 2 are symmetrically provided with grooves. When the upper module 1 and the lower module 2 are closed together, the two grooves form a sub-cavity 13.

[0028] Among them, the sub-cavities 13 are symmetrically distributed on both sides of the column 1401 section of the steering housing 14 of the main cavity 4.

[0029] The sub-cavity 13 is located between the second locking block 11 and the third locking block 12.

[0030] The thickness of the card block is 0.5-3mm.

[0031] Among them, the core 5 is connected to the core pulling device, and the slider insert 6 is connected to the telescopic push-pull device.

[0032] Table 1: Anti-elongation characteristics of blocks without locking mechanisms and support blocks

[0033]

[0034] Table 2: Anti-lengthening features of the clamping block and the supporting block

[0035]

[0036] Comparing Table 1 and Table 2, it can be seen that the anti-lengthening features of the clamping block and the supporting block formed in the secondary cavity 13 have good effects on preventing the product from lengthening, effectively preventing the column 1401 (especially the root of the reinforcing rib indicated by the arrow) of the 2.5mm-thick steering gear shell 14 from breaking, and ensuring the product quality. Figure 5

[0037] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent transformation or modification according to the spirit and essence of the present application shall be covered within the protection scope of the present application.​

Claims

1. A thin-walled diverter housing die-cast forming mold characterized by: The utility model relates to a two -piece mould for steering gear housing, including upper module (1) with lower module (2), upper module (1) bottom is equipped with upper mould groove and runner (3), lower module (2) top is equipped with lower mould groove and runner (3), and upper module (1) is surrounded with lower module (2) after upper mould groove and lower mould groove form main cavity (4), and main cavity (4) each port is equipped with several core (5) with slider insert (6);The bottom of upper module (1) and the top of lower module (2) are symmetrically equipped with the recess in upper and lower, and the recess is located in the side portion of the steering gear housing (14) cylinder (1401) section of main cavity (4), and the recess is communicated with main cavity (4), and the recess is embedded with the clamping block, and the clamping block extends into main cavity (4).

2. The thin walled diverter housing die cast molding tool of claim 1, wherein: The recess includes first recess (7), second recess (8) and third recess (9), and the first clamping block (10), second clamping block (11) and third clamping block (12) are embedded in the three recesses respectively.

3. The thin walled diverter housing die cast molding tool of claim 2, wherein: The first clamping block (10), second clamping block (11) and third clamping block (12) are rectangular, the first clamping block (10) and the second clamping block (11) are on the same side, and the third clamping block (12) is on one side.

4. The thin walled diverter housing die cast molding tool of claim 3, wherein: The upper module (1) and the lower module (2) are symmetrically provided with grooves, and the upper module (1) and the lower module (2) form a secondary cavity (13) after being enclosed.

5. The thin walled diverter housing die cast molding tool of claim 4, wherein: The secondary cavity (13) is symmetrically distributed on both sides of the steering gear housing (14) cylinder (1401) section of the main cavity (4).

6. The thin walled diverter housing die cast molding tool of claim 4, wherein: The secondary cavity (13) is located between the second clamping block (11) and the third clamping block (12).

7. The thin walled diverter housing die cast molding tool of claim 1, wherein: The thickness of the clamping block is 0.5-3mm.

8. The thin walled diverter housing die cast molding tool of claim 1, wherein: The core (5) is connected to the core pulling device, and the slider insert (6) is connected to the telescopic push-pull device.

Images