阅读说明：本技术 一种方向盘骨架压铸生产方法 (Die-casting production method for steering wheel framework ) 是由 陈晖明 于 2019-12-18 设计创作，主要内容包括：本发明涉及一种方向盘骨架压铸生产方法,包括以下步骤：(1)熔炉升温；(2)模具加温；(3)炉中加料；(4)喷脱模剂；(5)放入花键；(6)合模铸射；(7)开模取件；(8)工件自检；(9)切边；(10)探伤；(11)炉渣清除；(12)轮缘清理；(13)轮辐清理；(14)底座清孔。本发明具有能够在方向盘骨架压铸时就将键槽造出,减少工作人员的制造时间的效果。(The invention relates to a die-casting production method of a steering wheel framework, which comprises the following steps: (1) heating the smelting furnace; (2) heating the mould; (3) charging in a furnace; (4) spraying a release agent; (5) placing the spline; (6) co-molding and injecting; (7) opening the mold and taking out the part; (8) self-checking the workpiece; (9) trimming; (10) flaw detection; (11) removing slag; (12) cleaning a wheel rim; (13) cleaning spokes; (14) and cleaning holes on the base. The invention has the effect of reducing the manufacturing time of workers by manufacturing the key slot when the steering wheel framework is die-cast.)

1. A die-casting production method of a steering wheel framework is characterized by comprising the following steps:

(1) heating the smelting furnace;

heating the furnace;

(2) heating the mould;

heating the mould in a mechanical or manual mode;

(3) charging in a furnace;

adding the qualified magnesium ingot or aluminum ingot into the smelting furnace;

(4) spraying a release agent;

spraying the punch, the hole sites, the fixed die and the movable die according to the solid ratio, and blowing the die after the spraying to ensure uniformity and reasonability;

(5) placing the spline;

placing the spline into a mold, and placing the spline into the mold stably and forcibly;

(6) co-molding and injecting;

closing the movable mold and the fixed mold, and injecting casting liquid into the mold;

(7) opening the mold and taking out the part;

separating the movable mold from the fixed mold, and taking out the casting from the fixed mold;

(8) self-checking the workpiece;

visually observing each casting taken out of the mold, and primarily observing spokes of the casting;

(9) trimming;

arranging a specially-assigned person to operate the edge trimmer, trimming the edge of the casting and cutting off the flash on the casting;

(10) flaw detection;

inspecting the trimmed castings, and inspecting whether the castings have obvious defects;

(11) removing slag;

cleaning slag in a mold and a furnace;

(12) cleaning a wheel rim;

manually using a file, a flat file and a round file to burr and smooth the rim from outside to inside without leaving any mark;

(13) cleaning spokes;

the lumps and the spots are clearly and cleanly remained by using a round and flat file;

(14) cleaning holes on the base;

the residue points of the plug are clear and clean by matching with functional hole sites by using round files and the like.

2. The die-casting production method of the steering wheel frame according to claim 1, characterized in that: and heating the die by a die temperature controller.

3. The die-casting production method of the steering wheel frame according to claim 1, characterized in that: 5 magnesium ingots or aluminum ingots are prepared at the cold material furnace end of the smelting furnace.

4. The die-casting production method of the steering wheel frame according to claim 3, characterized in that: and heating the aluminum ingot or the magnesium ingot in a cold material furnace end of the smelting furnace to 50 ℃.

5. The die-casting production method of the steering wheel frame according to claim 1, characterized in that: and obliquely putting an aluminum ingot or a magnesium ingot into the melting furnace.

6. The die-casting production method of the steering wheel frame according to claim 1, characterized in that: and blowing away residues in the edge cutting process by using a fan.

7. The die-casting production method of the steering wheel frame according to claim 1, characterized in that: the protective tool is worn to clean the slag in the die and the furnace.

8. The die-casting production method of the steering wheel frame according to claim 1, characterized in that: when the casting is cleaned, the groove matched with the spline on the casting is polished.

Technical Field

The invention relates to the technical field of production of steering wheel frameworks, in particular to a die-casting production method of a steering wheel framework.

Background

The existing manufacturing method of the automobile steering wheel framework has two types, firstly, the magnesium alloy with the magnesium content of more than 95% is adopted as the material, and the whole body is formed by die casting, so that the automobile steering wheel framework has the advantages of accurate size of an assembly process hole formed by die casting, accurate positioning when the components of the steering wheel are assembled on the framework and simple assembly.

Chinese patent publication No. CN102514609A discloses a method for manufacturing a steering wheel frame, which belongs to the field of manufacturing of automobile steering wheels, and comprises welding a steel outer ring, spokes and splines into a frame blank by using a welding process, and then press-casting an aluminum alloy mounting substrate containing 83% of aluminum on the frame blank by using a die-casting process at a die-casting temperature of 670 ℃.

The manufacturing of the steering wheel framework can be conveniently and rapidly completed by the method.

The above prior art solutions have the following drawbacks: the steering wheel is generally connected with the rotating shaft, so that a key groove connected with the rotating shaft key is generally reserved on the steering wheel framework. However, in actual manufacturing, the key groove needs to be formed in the framework after the framework is manufactured, so that the manufacturing time is increased, and once the specification of the key groove is not satisfactory, the whole framework needs to be manufactured again.

Disclosure of Invention

In view of the defects in the prior art, one of the purposes of the present invention is to provide a method for producing a steering wheel frame by die-casting, which can form a key slot during die-casting of the steering wheel frame, thereby reducing the manufacturing time of workers.

The above object of the present invention is achieved by the following technical solutions:

1. a die-casting production method of a steering wheel framework comprises the following steps:

(1) heating the smelting furnace;

heating the furnace;

(2) heating the mould;

heating the mould in a mechanical or manual mode;

(3) charging in a furnace;

adding the qualified magnesium ingot or aluminum ingot into the smelting furnace;

(4) spraying a release agent;

spraying the punch, the hole sites, the fixed die and the movable die according to the solid ratio, and blowing the die after the spraying to ensure uniformity and reasonability;

(5) placing the spline;

placing the spline into a mold, and placing the spline into the mold stably and forcibly;

(6) co-molding and injecting;

closing the movable mold and the fixed mold, and injecting casting liquid into the mold;

(7) opening the mold and taking out the part;

separating the movable mold from the fixed mold, and taking out the casting from the fixed mold;

(8) self-checking the workpiece;

visually observing each casting taken out of the mold, and primarily observing spokes of the casting;

(9) trimming;

arranging a specially-assigned person to operate the edge trimmer, trimming the edge of the casting and cutting off the flash on the casting;

(10) flaw detection;

inspecting the trimmed castings, and inspecting whether the castings have obvious defects;

(11) removing slag;

cleaning slag in a mold and a furnace;

(12) cleaning a wheel rim;

manually using a file, a flat file and a round file to burr and smooth the rim from outside to inside without leaving any mark;

(13) cleaning spokes;

the lumps and the spots are clearly and cleanly remained by using a round and flat file;

(14) cleaning holes on the base;

the residue points of the plug are clear and clean by matching with functional hole sites by using round files and the like.

Through adopting above-mentioned technical scheme, when carrying out the die-casting of steering wheel skeleton, put into the mould with the spline to it is fixed with the spline, then pour into the casting liquid into the mould again, stereotype in the mould, the mould is stereotyped the back, and the spline blocks the casting liquid, forms the keyway on the foundry goods of making, makes the keyway cast out together at the foundry goods in-process, lets follow-up staff need not drive the keyway again when operating the foundry goods.

The present invention in a preferred example may be further configured to: and heating the die by a die temperature controller.

Through adopting above-mentioned technical scheme, the temperature of control heating that can be better.

The present invention in a preferred example may be further configured to: 5 magnesium ingots or aluminum ingots are prepared at the cold material furnace end of the smelting furnace.

By adopting the technical scheme, the materials are pre-added, so that the rapid charging of subsequent processes is facilitated.

The present invention in a preferred example may be further configured to: and heating the aluminum ingot or the magnesium ingot in a cold material furnace end of the smelting furnace to 50 ℃.

Through adopting above-mentioned technical scheme, preheat the material, let the material melt sooner.

The present invention in a preferred example may be further configured to: and obliquely putting an aluminum ingot or a magnesium ingot into the melting furnace.

Through adopting above-mentioned technical scheme, prevent the melt that causes when cutting straightly and splash.

The present invention in a preferred example may be further configured to: and blowing away residues in the edge cutting process by using a fan.

Through adopting above-mentioned technical scheme, prevent that the residue from bonding on the foundry goods once more.

The present invention in a preferred example may be further configured to: the protective tool is worn to clean the slag in the die and the furnace.

Through adopting above-mentioned technical scheme, prevent that sweat from dripping into the stove.

The present invention in a preferred example may be further configured to: when the casting is cleaned, the groove matched with the spline on the casting is polished.

By adopting the technical scheme, the key groove formed by die casting is smoother.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the key groove can be manufactured when the steering wheel framework is subjected to die casting, so that the manufacturing time of workers is reduced;

2. the material is convenient to be added into the smelting furnace;

3. prevent sweat of workers from entering the melting furnace.

Drawings

FIG. 1 is a schematic view of the production process in this example.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the steering wheel frame die-casting production method disclosed by the invention comprises the following steps:

(1) heating the smelting furnace;

the temperature of the smelting furnace is increased to 685 +/-15 ℃ through a heating program (a heater), the safe operation of a control circuit is checked, and whether lubricating oil, protective gas, an electric thermocouple, a charging pump and the like are normal or not is checked. The liquid temperature in the furnace is 685 +/-15 ℃ and the hearth temperature is 750-. And (4) for well prepared materials and standard production, confirming the analysis of the components of the molten soup, the brand of the raw materials, the pressure of protective gas and the like.

(2) Heating the mould;

the mould heats through machinery or artificial mode, heats the mould through the mould temperature machine in this process, removes absolute oil, aqueous vapor, carries out explosion-proof measure, and the mould is locked. The joint of the mould and the mould temperature controller needs to be locked, and the water pipe joint of cooling water is firmly connected. And (4) checking the temperatures of the movable mold and the fixed mold and the central position and the edge position by using a temperature measuring instrument to determine whether the temperatures meet the design requirements, if so, the production is standardized.

(3) Charging in a furnace;

adding qualified magnesium (aluminum) ingot, opening the cover, placing lightly, preparing 5 cold material burners, keeping the temperature at about 50 ℃, and preventing pollution. Only 1 ingot is added in every 4-5 production, and the ingot is lightly placed at an oblique angle of 45 degrees, and no more or less ingots are added.

(4) Spraying a release agent;

the spraying mold is used according to the solid-to-solid ratio, the punch is firstly sprayed, then the hole site is sprayed, then the fixed mold and the movable mold are sprayed, the uniformity and reasonability are ensured during spraying, and the mold is dried. If the spraying is less, the condition of sticking the die can occur, and the spraying is more, which causes waste. When spraying, the staff lift the stable spray gun, guarantee that the flow is even.

(5) Placing the spline;

the spline is put into a die and is put into the die smoothly and forcefully without deflection, inclination and looseness. Each mould is tightly closed in place, otherwise quality accidents and damage to the moulds can occur.

(6) Co-molding and injecting;

and (3) closing the movable die and the fixed die, injecting casting liquid into the die, and stopping the die to investigate reasons if abnormal sound is found in the equipment die.

(7) Opening the mold and taking out the part;

the movable mold and the fixed mold are separated, the casting is taken out from the fixed mold, and the movable mold is prevented from falling down when the casting is taken out.

(8) Self-checking the workpiece;

and (4) visually observing each casting taken out of the die, and preliminarily observing the spoke of the casting to determine whether obvious defects exist. To ensure smooth taking. And (4) when the detection is carried out, the sequence is changed if the detection is qualified according to the drawing and the quality standard, and the detection is carried out by an inspector if the detection is not up to the standard. The reason is found and corrected for defects such as cold shut and deformation.

(9) Trimming;

arranging a specially-assigned person to control the edge trimmer, trimming the castings, cutting off the flashes on the castings, and blowing away cut-off residues by using a fan in the cutting-off process. The overall shape of the casting cannot be destroyed when the flash is cut off.

(10) Flaw detection;

and inspecting the trimmed castings to check whether the castings have obvious defects.

(11) Removing slag;

workers wear protective devices such as safety helmets and gloves to clean the slag in the molds and the furnaces, so that the slag cannot interfere with production during the next production. Wherein, the staff wears the protective equipment, mainly used prevents that sweat from dripping into the stove.

(12) Cleaning a wheel rim;

manually using a file, a flat file and a round file to burr and smooth the rim from outside to inside without leaving any mark. The wheel rim is smooth and free of residual concave-convex marks, and is smooth and free of dust when being rubbed by hands.

(13) Cleaning spokes;

the lumps and spots are clearly and cleanly remained by using the round and flat file.

(14) Cleaning holes on the base;

the residue points of the plug are clear and clean by matching with functional hole sites by using round files and the like.

The used spline is subjected to special machine, special person, special cutter and standard operation to form the spline tooth. And a special plane and a special person are positioned on the casting according to the drawing to drill a screw tap.

The product is passivated according to a rule by a passivation program, cleaned, air-dried, oiled and labeled.

When the casting is cleaned, the groove matched with the spline on the casting is polished.

The implementation principle of the embodiment is as follows: when carrying out the die-casting of steering wheel skeleton, put into the mould with the spline to it is fixed with the spline, then pour into casting liquid into to the mould again, stereotype in the mould, the mould is stereotyped the back, and the spline blocks casting liquid, forms the keyway on the foundry goods of making for the keyway is cast out together at the foundry goods cast in-process, lets follow-up staff need not drive the keyway again when operating the foundry goods.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.