The method for high-precision manufacturing of sectional material of train body large-size complex-cross-section mold for extruding(1) technical field
The present invention relates to a kind of method for high-precision manufacturing of sectional material of train body large-size complex-cross-section mold for extruding, be used for the manufacturing of sectional material of train body large-size complex-cross-section mold for extruding.
(2) background technology
At present, complicated die is formed by a plurality of die assemblies usually, usually adding man-hour,, carrying out assembly manipulation at last respectively to its processing, yet in actual production, find, because separate machined, the harmony of each mould can't be unified, and precision is lower, often have error condition, mould assembling effect is unsatisfactory.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, the method for high-precision manufacturing of the sectional material of train body large-size complex-cross-section mold for extruding that a kind of error is little, precision is high is provided.
The object of the present invention is achieved like this: a kind of method for high-precision manufacturing of sectional material of train body large-size complex-cross-section mold for extruding, and described mould is formed by stacking successively by upper die and lower die and die-cushion, and its manufacture method is:
1) patrix processing:
A, machined into: patrix is carried out drilling operation;
B, flaw detection: the patrix good to machined into detects;
C, CNC processing: get out the assembling screw that is complementary with counterdie;
D, drilling machine processing: on circumference, process the master, help lifting hole(eyelet);
E, heat treatment: oil quenching is handled;
F, finish turning: to the processing of polishing of patrix external diameter, seam and mating surface;
G, flat surface grinding: male, go into aluminium;
H, CNC processing: mill male and pan hole behind the clamping;
2) counterdie processing:
A, machined into: counterdie is carried out drilling operation;
B, flaw detection: the counterdie good to machined into detects;
C, CNC processing: get out the assembling screw that is complementary with patrix;
D, drilling machine processing: on circumference, process the master, help lifting hole(eyelet) and dowel hole;
E, heat treatment: oil quenching is handled;
F, finish turning: counterdie external diameter and seam are processed;
G, flat surface grinding: the counterdie contact-making surface is polished;
H, CNC processing: mill pan pin-and-hole and seam chamber behind the clamping;
I, line cut operation: with wire cutting machine counterdie is carried out the nib cutting;
The processing of j, electrode: cut the merging electrode with the thick copper plate of 20mm, with 15mm thick cut the core rod electrode, graphite is done the dorsal pore electrode.
3) upper die and lower die cooperate processing
Processing is handled with polishing behind upper die and lower die clamping together;
4) die-cushion processing:
A, machined into: die-cushion is carried out drilling operation;
B, flaw detection: the die-cushion good to machined into detects;
C, CNC processing: get out the assembling screw that is complementary with upper die and lower die;
D, drilling machine processing: on circumference, process the master, help lifting hole(eyelet) and dowel hole;
E, heat treatment: oil quenching is handled;
F, finish turning: die-cushion external diameter and seam are processed;
G, flat surface grinding: the die-cushion contact-making surface is polished;
H, CNC processing: mill male and pan hole behind the clamping;
I, electric spark: carry out drainage procedure;
5) assembling:
Upper die and lower die and die-cushion are assembled into one.
The invention has the beneficial effects as follows:
Adding man-hour, carrying out process operation after upper die and lower die are combined once more, guaranteeing the uniformity of upper die and lower die, making that its error is little, precision is high.
(4) description of drawings
Fig. 1 is the structural representation of invention sectional material of train body large-size complex-cross-section mold for extruding.
Among the figure:
Patrix 1, counterdie 2, die-cushion 3
(5) specific embodiment
The present invention relates to a kind of method for high-precision manufacturing of sectional material of train body large-size complex-cross-section mold for extruding, described mould is formed by stacking successively by patrix 1, counterdie 2 and die-cushion 3, and its manufacture method is:
1) patrix 1 processing:
A, machined into: patrix 1 is carried out drilling operation;
B, flaw detection: the patrix 1 good to machined into detects;
C, CNC processing: get out the assembling screw that is complementary with counterdie 2;
D, drilling machine processing: on circumference, process the master, help lifting hole(eyelet);
E, heat treatment: oil quenching is handled;
F, finish turning: to the processing of polishing of patrix 1 external diameter, seam and mating surface;
G, flat surface grinding: male, go into aluminium;
H, CNC processing: mill male and pan hole behind the clamping;
2) counterdie 2 processing:
A, machined into: counterdie 2 is carried out drilling operation;
B, flaw detection: the counterdie 2 good to machined into detects;
C, CNC processing: get out the assembling screw that is complementary with patrix 1;
D, drilling machine processing: on circumference, process the master, help lifting hole(eyelet) and dowel hole;
E, heat treatment: oil quenching is handled;
F, finish turning: counterdie 2 external diameters and seam are processed;
G, flat surface grinding: counterdie 2 contact-making surfaces are polished;
H, CNC processing: mill pan pin-and-hole and seam chamber behind the clamping;
I, line cut operation: with wire cutting machine counterdie 2 is carried out the nib cutting;
The processing of j, electrode: cut the merging electrode with the thick copper plate of 20mm, with 15mm thick cut the core rod electrode, graphite is done the dorsal pore electrode.
3) patrix 1 and counterdie 2 cooperate processing
The processing of polishing behind patrix 1 and the counterdie 2 clamping is together handled;
4) die-cushion processing:
A, machined into: die-cushion 3 is carried out drilling operation;
B, flaw detection: the die-cushion 3 good to machined into detects;
C, CNC processing: get out the assembling screw that is complementary with patrix 1 and counterdie 2;
D, drilling machine processing: on circumference, process the master, help lifting hole(eyelet) and dowel hole;
E, heat treatment: oil quenching is handled;
F, finish turning: die-cushion 3 external diameters and seam are processed;
G, flat surface grinding: die-cushion 3 contact-making surfaces are polished;
H, CNC processing: mill male and pan hole behind the clamping;
I, electric spark: carry out drainage procedure;
5) assembling:
Patrix 1, counterdie 2 and die-cushion 3 are assembled into one.