A kind of wheel spoke for steel tire of automobile manufacturing process and its particular manufacturing craft
Technical field
The invention belongs to steel rim spoke production technical field, a kind of wheel spoke for steel tire of automobile manufacturing process and its particular manufacturing craft are related in particular to.
Background technology
In the prior art, the process of conventional wheel spoke for steel tire of automobile manufacturing process is(a), steel plate air cutting blanking, i.e., according to the finished size of steel rim spoke calculate steel plate circle material blank size, gas cutting goes out disk material on steel plate,(b)Disk is struck out, the plane and the angle of side face formation for making disk are 110~150 degree,(c), compound flushing go out centre bore and bolt hole,(d), spinning or hydroforming, shaped on spinning machine or hydraulic press, form finished form(e), rush air holes,(f), fraising,(g), lathe finishing,(h), mark know, examine, packaging, storage.According to measuring and calculating, existing production technology is low to the utilization rate of steel, and the utilization rate for rushing air holes front spring only has 56% or so, and production cost is high.
Technical problem
According to measuring and calculating, existing production technology is low to the utilization rate of steel, and the utilization rate for rushing air holes front spring only has 56% or so, and production cost is high.
Technical solution
To achieve these goals, the technical scheme is that:A kind of wheel spoke for steel tire of automobile manufacturing process, its processing step is:
(a), blanking:Steel plate or steel band size needed for the shaping of single-piece spoke are calculated, with flame cutting machine or plate shearing machine by steel plate or steel band cutting forming;
(b), edge rolling:The steel plate of cutting forming is rolled into cylindrical shape with edge rolling machine;
(c), flatten:The steel plate both ends of the surface of edge rolling are flattened to good;
(d), butt welding:The steel plate of pressing is welded into cylindrical shape with butt welding machine, it is desirable to which weld is firm;
(e), except welding slag, remove the welding slag at cylindric blank weld bond;
(f), rolling:It is smooth by being rolled at the cylindric blank slagging-off for shooting off welding slag;
(g), end cut:Cut the unnecessary slag charge of end face;
(h), fourth contact:The blank full circle after cutting will be held;
(i), close up and expansion, flatten face substep carry out:
Close up:The cylindric blank of fourth contact is placed on the mould of forcing press, by the hot forging of blank top, hot pressing(Blank is in partly or wholly heated condition)Or cold forging, the method pressure harvest bell mouth shape of cold pressing, mould therefor is special closing-in mould, and the angle for finally making top horn mouth inclined-plane and horizontal plane is 150~160 degree;
Expansion, pressing face:The cylindric blank of closing in is placed on the special flaring die of forcing press, with hot forging, hot pressing(Blank is in partly or wholly heated condition)Or cold forging, the method for cold pressing, top horn mouth is flattened, bell mouth shape is expanded into lower vertical face, bottom horn mouth inclined-plane is 110~150 degree with horizontal plane angle;
(j), punching:On hydraulic press mould, centre bore, bolt hole are rushed, is needed that bolt hole can not also be rushed according to technique;
(k), mould pressing or hydroforming:Blank after punching is placed on spinning machine or hydraulic press and carries out spinning or hydroforming;
(l), rush air holes;
(m), fraising;
(n), lathe finishing;
(o), mark know, examine, packaging, storage.
Beneficial effect
The production technology of the present invention can improve steel utilization ratio, according to measuring and calculating, production technology originally rushes air holes front spring utilization rate and there was only 56% or so, and the production technology backlash air holes front spring utilization rate of the present invention is used up to more than 95%, so as to reduce spoke production cost, the competitiveness of product commercially is improved.In actual production process, spoke can be pressed into the steel pipe of size is met, now, can omit edge rolling, pressing, butt welding, cut except welding slag, rolling, end, the process such as fourth contact, make the production technology of the present invention more simplified, make the production cost of spoke lower.
Brief description of the drawings
Fig. 1 for close up and when expansion, the face substep of pressing are carried out closing in operation principle schematic diagram, 1 is forcing press, and 2 be the cylindric blank of fourth contact, and 3 be mould on special closing-in, and 4 be mould under special closing-in, 10, workbench;
Fig. 2 is closes up and expansion when expansion, the face substep of pressing are carried out, the operation principle schematic diagram for flattening face, and 1 is forcing press, and 5 be mould on special flaring die, the 6 cylindric blank to close up, and 7 be mould under special enlarging, and 10, workbench;
The operation principle schematic diagram that Fig. 3 is closes up, expansion, pressure plane synchronization are carried out, 1 is forcing press, and 2 be the cylindric blank of fourth contact, and 8 be mould on specific complex mould, and 9 be mould under specific complex, 10, workbench;
The preferred forms of the present invention
a), blanking:Steel plate or steel band sized data needed for the shaping of single-piece spoke are calculated, with flame cutting machine or plate shearing machine by steel plate or steel band cutting forming;
(b), edge rolling:The steel plate of cutting forming is rolled into cylindrical shape with edge rolling machine;
(c), flatten:The steel plate both ends of the surface of edge rolling are flattened to good;
(d), butt welding:The steel plate of pressing is welded into cylindrical shape with butt welding machine, it is desirable to which weld is firm;
(e), except welding slag, remove the welding slag at cylindric blank weld bond;
(f), rolling:It is smooth by being rolled at the cylindric blank slagging-off for shooting off welding slag;
(g), end cut:Cut the unnecessary slag charge of end face;
(h), fourth contact:The blank full circle after cutting will be held;
(i), close up and expansion, flatten face substep carry out:
Close up:The cylindric blank 2 of fourth contact is placed on the mould of forcing press 1 shown in Fig. 1, by the hot forging of blank top, hot pressing(Blank is in partly or wholly heated condition)Or cold forging, the method pressure harvest bell mouth shape of cold pressing, mould therefor is special closing-in mould, and the angle for finally making top horn mouth inclined-plane and horizontal plane is 110~1200;
The angle of setting frustum of a cone inner chamber in mould 3 on the special closing-in mould, its special closing-in, frustum inclined-plane and horizontal plane is 150~160 degree, and mould 4 is the cylinder table matched with mould on special closing-in under its special closing-in;
Expansion, pressing face:The cylindric blank 6 of closing in is placed on the special flaring die of forcing press 1 shown in Fig. 2, with hot forging, hot pressing(Blank is in partly or wholly heated condition)Or cold forging, the method for cold pressing, top horn mouth is flattened, bell mouth shape is expanded into lower vertical face, bottom horn mouth inclined-plane is 110~150 degree with horizontal plane angle;
The special flaring die, mould 7 is the frustum of a cone under its special enlarging, and the angle of frustum of a cone inclined-plane and horizontal plane is 110~150 degree, and mould 5 is discoid in its special enlarging.
(j), punching:Place the blanks on hydraulic press mould, rush centre bore, bolt hole;Needed that bolt hole can not also be rushed according to technique;
(k), mould pressing or hydroforming:Blank after punching is placed on spinning machine or hydraulic press and carries out spinning or hydroforming;
(l), rush air holes;
(m), fraising;
(n), lathe finishing;
(o), mark know, examine, packaging, storage.
Embodiments of the present invention
Embodiment one
(a), blanking:Steel plate or steel band sized data needed for the shaping of single-piece spoke are calculated, with flame cutting machine or plate shearing machine by steel plate or steel band cutting forming;
(b), edge rolling:The steel plate of cutting forming is rolled into cylindrical shape with edge rolling machine;
(c), flatten:The steel plate both ends of the surface of edge rolling are flattened to good;
(d), butt welding:The steel plate of pressing is welded into cylindrical shape with butt welding machine, it is desirable to which weld is firm;
(e), except welding slag, remove the welding slag at cylindric blank weld bond;
(f), rolling:It is smooth by being rolled at the cylindric blank slagging-off for shooting off welding slag;
(g), end cut:Cut the unnecessary slag charge of end face;
(h), fourth contact:The blank full circle after cutting will be held;
(i), close up and expansion, flatten face substep carry out:
Close up:The cylindric blank of fourth contact is placed on the mould of forcing press, by the hot forging of blank top, hot pressing(Blank is in partly or wholly heated condition)Or cold forging, the method for cold pressing suppress harvest bell mouth shape in two times, the angle of top horn mouth inclined-plane and horizontal plane is 120~125 degree when suppressing for the first time, and mould therefor is a closing-in mould when suppressing for the first time;Second of compacting finally makes the angle of top horn mouth inclined-plane and horizontal plane be 150~160 degree;Mould therefor is special closing-in mould,
Closing-in mould, it once closes up and frustum of a cone inner chamber is set in upper mould, and frustum inclined-plane and horizontal plane angle are that mould is and the cylinder table that above mould matches that once closes up under 120~125 degree, its special closing-in;
Expansion, pressing face:Top horn mouth is flattened, bell mouth shape is expanded into lower vertical face, bottom horn mouth inclined-plane is 110~150 degree with horizontal plane angle;
(j), punching:Place the blanks on hydraulic press mould, rush centre bore, bolt hole;Needed that bolt hole can not also be rushed according to technique;
(k), mould pressing or hydroforming:Blank after punching is placed on spinning machine or hydraulic press and carries out spinning or hydroforming;
(l), rush air holes;
(m), fraising;
(n), lathe finishing;
(o), mark know, examine, packaging, storage.
Embodiment two:
(a), blanking:Steel plate or steel band sized data needed for the shaping of single-piece spoke are calculated, with flame cutting machine or plate shearing machine by steel plate or steel band cutting forming;
(b), edge rolling:The steel plate of cutting forming is rolled into cylindrical shape with edge rolling machine;
(c), flatten:The steel plate both ends of the surface of edge rolling are flattened to good;
(d), butt welding:The steel plate of pressing is welded into cylindrical shape with butt welding machine, it is desirable to which weld is firm;
(e), except welding slag, remove the welding slag at cylindric blank weld bond;
(f), rolling:It is smooth by being rolled at the cylindric blank slagging-off for shooting off welding slag;
(g), end cut:Cut the unnecessary slag charge of end face;
(h), fourth contact:The blank full circle after cutting will be held;
(i), close up, expansion, pressure plane synchronization carry out:
Described closing in, expansion, pressure plane synchronization are carried out, the cylindric blank 2 of fourth contact is placed on the mould on forcing press 1 shown in Fig. 3, closing in is synchronized with the method for hot forging, hot pressing or cold forging, cold pressing and is expanded, form top horn mouth and bottom horn mouth, top horn mouth inclined-plane is 110~150 degree with horizontal plane angle, bottom horn mouth inclined-plane is 110~150 degree with horizontal plane angle, and mould therefor is specific complex mould, then will close up top horn mouth being pressed into plane;Mould therefor is special pressure plane mould.
The specific complex mould, mould 8 sets circular cone shape inner chamber in its specific complex, frustum inclined-plane and horizontal plane angle are that mould 9 is the frustum of a cone that matches with mould in specific complex 8 under 110~150 degree, its specific complex, and the angle of frustum inclined-plane and horizontal plane is 110~150 degree;
Mould is discoid in the special pressure plane mould, its special pressing, and mould is the frustum of a cone under its special pressing, and frustum inclined-plane is 110~150 degree with horizontal plane angle.
(j), punching:Place the blanks on hydraulic press mould, rush centre bore, bolt hole, needed that bolt hole can not also be rushed according to technique;
(k), mould pressing or hydroforming:Blank after punching is placed on spinning machine or hydraulic press and carries out spinning or hydroforming;
(l), rush air holes;
(m), fraising;
(n), lathe finishing;
(o), mark know, examine, packaging, storage.
Industrial applicibility
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