CN100358736C

CN100358736C - Making process of assembled hub-type steel wheel

Info

Publication number: CN100358736C
Application number: CNB2006100506964A
Authority: CN
Inventors: 张建荣; 张小光; 吴欣生
Original assignee: SITONG WHEEL MAKING CO Ltd JIAXING
Current assignee: JIAXING STONE WHEEL CO Ltd
Priority date: 2006-05-08
Filing date: 2006-05-08
Publication date: 2008-01-02
Anticipated expiration: 2026-05-08
Also published as: CN1847036A

Abstract

The present invention relates to a making process of assembled felly-type steel wheel. The present invention has the implementing steps: (1) flat plate steel belts are made into tubeless fellies through process steps, such as truncation, ring circle, welding, expanding, contour roll forming, bulging, punching air holes, etc.; (2) the flat plate steel belts are made into supporting rings through the process steps, such as truncation, ring circle, welding, bulging, upsetting squeeze, expanding, rotary extrusion, etc.; (3) the processed fellies and supporting rings are made into an assembled felly-type steel wheel finished product through the process steps, such as press fitting, welding, test, surface treatment, etc. When the making process is adopted, raw materials of the supporting rings can use ordinary flat plate steel belts, the materials are easy to be obtained, and the cost is low. The supporting rings with different cross sections and according with the requirements of designs can be obtained by the method by combining upsetting squeeze and rotary extrusion. The adopted equipment can be the ordinary equipment made in China, and the production cost is reduced; the equipment is suitable for the protection of small lot and multiple varieties. The process is an ideal process of few investments, good product quality and low production cost.

Description

Making process of assembled hub-type steel wheel

Technical field

The present invention relates to the manufacturing process of inner tube-free wheel in the automotive wheel manufacturing, a kind of making process of assembled hub-type steel wheel.

Background technology

Assembled hub-type steel wheel is to be widely used in one of wheel on the automobile at present.This wheel is to be made respectively by bracing ring and wheel rim two parts of having the 28 degree conical surfaces, then weld together.At present tubeless tire rim adopts the manufacturing process of dull and stereotyped steel coil strip/weld/roll mostly, and differs greatly on the bracing ring manufacturing process, concludes and gets up to have following several scheme:

1, shaped steel steel coil strip/welder's skill;

2, dull and stereotyped steel coil strip/weld/roll shape technology;

3, solid drawn pipe rolls shape technology.

Process program 1 is with rolling good and two shaped steel steel bands that the support ring cross sectional shape is identical, through blocking, enclose circle, welding and the circle that expands is shaped, severs from axis of symmetry punishment then, becomes single support ring.Process program 2 is to justify, weld and roll formation shape through blocking, enclosing with dull and stereotyped steel band, severs from axis of symmetry punishment then, becomes single support ring.Process program 3 is basic identical with process program 2, just replaces dull and stereotyped steel coil strip/weldering with large-diameter steel pipe.The advantage of process program 1 is: can make the unequal section support ring of cross sectional shape coincidence pattern requirement, and the production efficiency height; Its shortcoming is: be unsuitable for small lot, many variety production, shaped steel steel band welding back welding slag is removed difficulty, influences presentation quality.The advantage of process program 2 is: small lot, many variety production can be carried out easily in the raw MAT'L source; Its shortcoming is: can only produce the uniform cross section support ring, and the requirement of out of reach pattern, and, roll the import roll forming machine that shape uses and cost an arm and a leg.The advantage of process program 3 is: can produce no weld seam support ring, intensity is higher; Its shortcoming is: raw MAT'L source difficulty, can only produce the uniform cross section support ring, and the requirement of out of reach pattern, same, used import roll forming machine costs an arm and a leg.

Summary of the invention

The purpose of this invention is to provide a kind of making process of assembled hub-type steel wheel.Be suitable for small lot, many variety production, and can reach the requirement of support ring unequal section pattern.

Making process of assembled hub-type steel wheel proposed by the invention is:

(1) wheel rim manufacturing: dull and stereotyped steel band blocks → encloses circle → welding → enlarging → roll shape → bulging → qi of chong channel ascending adversely hole;

(2) support ring manufacturing: dull and stereotyped steel band blocks → encloses circle → welding → bulging → upsetting squeeze → enlarging → spin shaping;

(3) assembly welding: the support ring that processes is press fit into the ad-hoc location → welding → surface treatment of the wheel rim that processes.

Wheel rim manufacturing and assembly welding technique and common inner tube free steel wheel manufacturing process do not have big difference in this technology, and key is support ring manufacturing process difference.Make support ring with this technology and can adopt the ordinary flat steel band, the raw MAT'L source is easy, low price.The method that adds spinning with upsetting squeeze can obtain the unequal section support ring that coincidence pattern requires.The equipment that is adopted can be common home equipment, can reduce production costs.And be applicable to small lot, many variety production.Therefore this technology is a kind of small investment, good product quality, the desirable technology that productive costs is low.

Description of drawings

Fig. 1 is a kind of assembled hub-type steel wheel pattern.Wherein: 1 wheel rim, 2 weld nuggets, 3 support rings.

Fig. 2 is a wheel rim manufacturing process route scheme drawing.Wherein: (a) dull and stereotyped steel band blocks, (b) circle circle, (c) welding, (d) enlarging, (e) roll shape, (f) bulging, (g) qi of chong channel ascending adversely hole.

Fig. 3 is a support ring manufacturing process route scheme drawing.Wherein: (a) dull and stereotyped steel band block, (b) circle circle, (c) welding, (d) bulging, (e) upsetting squeeze, (f) enlarging, (g) spinning.

Fig. 4 is an assembly welding technique route scheme drawing.Wherein: (a) press-fit, (b) welding.

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing.

1, wheel rim manufacturing process (referring to accompanying drawing 2):

1.1, dull and stereotyped steel band blocks: dull and stereotyped steel band is blocked by the fixed length size (Fig. 2 is a);

1.2, circle circle: with the circle circular knitting machine with the steel band circle of fixed-length cut-off circular (Fig. 2 b);

1.3, the welding: will enclose conglobate steel band with butt welder and be welded into drum (Fig. 2 c);

1.4, enlarging: on compression machine, the drum that is welded into is expanded cup-shaped (Fig. 2 d) with flaring die;

1.5, roll shape: on roll forming machine, cup-shaped drum rolled and forms wheel rim shape (Fig. 2 e);

1.6, bulging: the wheel rim that on compression machine, will the roll formation circle (Fig. 2 f) that expands with bulging die;

1.7, the qi of chong channel ascending adversely hole: with punch press at the wheel rim upper punch aperture of door (Fig. 2 g) of giving vent to anger.

2, support ring manufacturing process (referring to accompanying drawing 3):

2.1, dull and stereotyped steel band blocks: dull and stereotyped steel band is blocked by the fixed length size (Fig. 3 is a);

2.2, circle circle: with the circle circular knitting machine with the steel band circle of fixed-length cut-off circular (Fig. 3 b);

2.3, the welding: will enclose conglobate steel band with butt welder and be welded into annulus (Fig. 2 c);

2.4, bulging: on compression machine with bulging die with the annulus that the is welded into circle (Fig. 3 d) that expands;

2.5, upsetting squeeze: the head shape (Fig. 3 e) that on compression machine, the annulus one end upsetting squeeze of bulging is become support ring with the upsetting squeeze mould;

2.6, enlarging: on compression machine, the other end of annulus is expanded into awl mouth (Fig. 3 f) with flaring die;

2.7, spinning: on spinning machine with support ring spin shaping (Fig. 3 g);

3, assembly welding technique (referring to Fig. 4):

3.1, press-fit: on pressing machine, the support ring that processes is fitted in that (Fig. 4 is a) in the wheel rim that processes;

3.2, welding: on submerged arc welding machine, will press-fit good support ring and wheel rim weld together (Fig. 4 b);

The wheel good by above-mentioned processes just become assembled hub-type automobile steel wheel made product through operations such as check, surface treatments.

Claims

1, a kind of making process of assembled hub-type steel wheel comprises wheel rim manufacturing, support ring manufacturing and assembly welding technique, and wherein the wheel rim manufacturing process comprises following operation: dull and stereotyped steel band blocks → encloses circle → welding → enlarging → roll shape → bulging → qi of chong channel ascending adversely hole; Assembly welding technique comprises following operation: the support ring that processes is press fit into the ad-hoc location → welding → surface treatment of the wheel rim that processes; The support ring manufacturing process comprises following operation: dull and stereotyped steel band blocks → encloses circle → welding → bulging, it is characterized in that carrying out upsetting squeeze, enlarging and spin shaping again after the bulging operation in the support ring manufacturing process.