Modular pouring gate for casting supercharger worm gear

Abstract

The utility model discloses a modular pouring gate for casting a supercharger worm gear. The modular pouring gate is characterized by comprising a casting head, a plurality of transverse pouring gates, a plurality of straight pouring gates and end pouring gates, a plurality of the transverse pouring gates and the straight pouring gates can be connected at intervals according to the number of layers of turbine blades, and the two ends of the transverse pouring gates and the two ends of the straight pouring gates are provided with the casting heads and the end pouring gates to form a required casting pouring gate whole. Modularized assemblies are used for group tree verification, the manufacturing efficiency is high, the size precision is high, the cost is relatively low, and meanwhile the verification period can be shortened.

Description

Technical Field

[0001] This utility model relates to the field of casting production technology for automotive parts, and in particular to a modular gating system for casting turbocharger worm gears. Background Technology

[0002] The turbocharger turbine is one of the key components of the turbocharger. It is usually made into blanks by precision casting. During production, the turbine wax model needs to be welded through the gating system and finally cast. Therefore, the design of the gating system is a key factor affecting the cost and yield of the turbine casting process.

[0003] To control production costs, various different gating systems are required for casting assembly verification during product launch and cost optimization to achieve ideal material utilization and yield rates. The gating system shapes are complex; if manual gating is used, production efficiency and dimensional accuracy are difficult to guarantee; if a new gating mold is made each time, the cost is high and the cycle is too long. Therefore, how to quickly meet different gating system requirements is one of the challenges in process design. Summary of the Invention

[0004] This invention addresses the problems mentioned in the background art by providing a modular gating system for casting turbocharger worm gears. It utilizes modular components for assembly verification, resulting in high manufacturing efficiency, high dimensional accuracy, relatively low cost, and a shorter verification cycle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A modular gating system for casting turbocharger worm gears, characterized by including risers and gating gates, several horizontal gating gates, several vertical gating gates, and end gating gates;

[0007] The upper end of the riser is the pouring port and the lower end is the connecting nozzle. The riser is cylindrical and the inner cavity is a hollow conical tube. The inner cavity diameter decreases evenly from the pouring port to the connecting nozzle. During pouring, there is more material at the pouring port, which makes it easier to apply pressure to the material at the bottom so that it can quickly enter the next stage of the gating system.

[0008] The aforementioned horizontal runners are hollow discs, with concave conical holes at both the top and bottom ends that mate with the lower end of the riser. The outer wall of the horizontal runners has several through holes with protruding openings that communicate with the inner cavity of the horizontal runners. During casting, casting branches are set according to the number of turbine blades.

[0009] The aforementioned sprues are hollow cylindrical tubes with sealed ends and a certain length. Their length is set according to the interval between each layer of blades of the casting turbine. The two ends of the sprues are provided with protruding nozzles that cooperate with the conical concave holes at the upper and lower ends of the horizontal sprues and penetrate the inner cavity of the sprues.

[0010] The end gating system is a hollow disc-shaped part with an opening at one end. The closed part at the lower end has a conical tip for support, and the opening at the upper end has a concave conical hole that matches the protruding part of the gating system.

[0011] The beneficial effects of this invention are: the horizontal and vertical runners can be connected at intervals according to the number of turbine blade layers, and risers and end runners are installed at both ends to form the required casting runner system. Using modular components for assembly verification results in high production efficiency, high dimensional accuracy, relatively low cost, and a shorter verification cycle. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the assembly structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the gating and riser structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the horizontal gating structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the direct casting channel structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the end gating structure of this utility model. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example

[0018] As shown in the figure, a modular gating system for casting turbocharger worm gears includes a riser 1, several horizontal gatings 2, several vertical gatings 3, and an end gating 4.

[0019] The upper end of the riser 1 is the pouring port and the lower end is the connecting nozzle. The riser 1 is cylindrical and the inner cavity is a hollow conical tube. The inner cavity diameter decreases evenly from the pouring port to the connecting nozzle. When pouring, there is more material at the pouring port, which makes it easier to apply pressure to the material at the bottom so that it can quickly enter the next stage of the gating channel.

[0020] The aforementioned horizontal runners 2 are hollow discs, with concave conical holes at both the upper and lower ends that mate with the lower end of the riser 1. The outer wall of the horizontal runners 2 has several through holes with protruding openings that communicate with the inner cavity of the horizontal runners 2. During casting, casting branching is set according to the number of turbine blades.

[0021] The aforementioned sprues 3 are hollow cylindrical tubes with sealed ends and a certain length. Their length is set according to the interval between each layer of blades of the casting turbine. The two ends of the sprues 3 are provided with protruding nozzles that cooperate with the conical concave holes at the upper and lower ends of the horizontal sprues 2 and are connected to the inner cavity of the sprues.

[0022] The end gating 4 is a hollow disc-shaped part with an opening at one end. The lower closed part is provided with a conical tip for support, and the upper opening is provided with a concave conical hole that matches the convex part of the straight gating 3.

Claims

1. A modular gating system for casting turbocharger worm gears, characterized in that: It includes risers, several horizontal runners, several vertical runners, and end runners; The upper end of the riser is the pouring port and the lower end is the connecting nozzle. The riser is cylindrical and the inner cavity is a hollow conical tube. The inner cavity diameter decreases evenly from the pouring port to the connecting nozzle. During pouring, there is more material at the pouring port, which makes it easier to apply pressure to the material at the bottom so that it can quickly enter the next stage of the gating system. The aforementioned horizontal runners are hollow discs, with concave conical holes at both the top and bottom ends that mate with the lower end of the riser. The outer wall of the horizontal runners has several through holes with protruding openings that communicate with the inner cavity of the horizontal runners. During casting, casting branches are set according to the number of turbine blades. The aforementioned sprues are hollow cylindrical tubes with sealed ends and a certain length. Their length is set according to the interval between each layer of blades of the casting turbine. The two ends of the sprues are provided with protruding nozzles that cooperate with the conical concave holes at the upper and lower ends of the horizontal sprues and penetrate the inner cavity of the sprues. The end gating system is a hollow disc-shaped part with an opening at one end. The closed part at the lower end has a conical tip for support, and the opening at the upper end has a concave conical hole that matches the protruding part of the gating system.

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