Flanging technique of multifunctional hydraulic pressure flanging machine
Technical field
The invention belongs to metallurgical equipment, the hydraulic pressure flanger flanging process of particularly all kinds of shell tank body processing usefulness.
Background technology
The demand of all kinds of shell tank bodies such as the high force feed power transformation of China, chemical industry, oil, medicine is on the increase, and along with the user is more and more stricter to the requirement of properties of product, the multifunction hydraulic flanger becomes the indispensable unit that the shell tank body is produced gradually.Simultaneously, the multifunction hydraulic flanger is also constantly being popularized in the application in fields such as shipbuilding, automobile.Hydraulic pressure flanger flanging process belongs to the flanger additional process, formulates in order to guarantee the flange yield rate, is mainly concerned with the design of frock part size and the establishment of flanging process.Because most of users do not formulate rational flanging process in the use of flanger, cause percent defective to be effectively controlled, thus more and more urgent once the demand of the perfect flanging process of cover.
Metal is drawn in the deformed area that forms between punch and the die because turn-up process is meant under the condition that the material flanging coefficient allows by punch, so the establishment of the size design of frock parts such as punch, die and flange flow process all can have influence on the flange yield rate.
The effect of flanging technique of multifunctional hydraulic pressure flanging machine mainly is to boost productivity, and guarantees the yield rate of unit, thereby increases substantially product quality.In order to satisfy the requirement of user to product quality and productivity ratio, just must be according to the strict appearance and size of frock part and the intensity of contact surface set of user's product demand, rationally work out the flange flow process according to drawing-die size and workpiece material, therefore, this flanging process mainly comprises the size design of frock parts such as punch, die and the establishment of flange flow process, and wherein the setting of frock part size, flange passage, drawing temperature, drop-down speed and pulling capacity is most important.
Summary of the invention
The objective of the invention is to design a cover flanging technique of multifunctional hydraulic pressure flanging machine, to satisfy the requirement of user to product quality and productivity ratio in all kinds of shell tank body processing.
Technical scheme of the present invention is: design a kind of flanging technique of multifunctional hydraulic pressure flanging machine, it is characterized in that: which comprises at least master cylinder 6, left and right sides kicker cylinder 7, die 2, punch 1 and following hoisting cross beam 10 and cylinder lever connecting rod 3; Master cylinder 6 places workbench 4 middles, master cylinder 6 bilateral symmetry arrange that two left and right sides kicker cylinders 7 make master cylinder 6 backhauls, two left and right sides kicker cylinders 7 that master cylinder 6 and bilateral symmetry are arranged are connected between workbench 4 and the following hoisting cross beam 10, master cylinder 6 piston rod cylinder lever connecting rods 3 are connected with punch 1, and die 2 is located in workbench 4 and master cylinder 6 lower ends; The workpiece 18 that cuts behind the hole is put on the die 2; punch 1 is sent to travel switch qualification position by sending mould manipulator 13 to hang mould; left and right sides kicker cylinder 7 drives cylinder lever connecting rod 3 and rises near switch qualification position; 12 releases of bull stick cylinder; displacement detector 9 provides the lifting position signal that will store; bull stick cylinder 12 drives bull stick device 11 makes cylinder lever connecting rod 3 commentaries on classics advance 45 ° of matched moulds; left and right sides kicker cylinder 7 drives punch 1 downward rapid pretension workpiece by cylinder lever connecting rod 3; automatically gripping mechanism 17 is with Work-sheet pressing by flexible; master cylinder 6 begins to load drop-down until the final shaping that realizes workpiece 18; kicker cylinder 7 drive cylinder lever connecting rods 3 in the left and right sides rise to displacement detector 9 and provide the lifting position that will store; send mould manipulator 13 to move ahead and connect mould; bull stick cylinder 12 drives bull stick device 11 makes cylinder lever connecting rod 3 commentaries on classics move back 45 ° of demouldings; kicker cylinder 7 decline releases in the left and right sides also drive cylinder lever connecting rod 3 declines; send mould manipulator 13 to connect the mould return and put in place, this moment, gripping mechanism 17 was opened automatically, and workpiece 18 machines.
Described cylinder lever connecting rod 3 drop-down punch 1 enter the deformed area, regulate drop-down speed and make the control pulling capacity to minimum.
Described punch 1 conical surface enters the deformed area fully, is lubricated at punch 1 calibrating strap; Drop-down then punch 1 puts in place, workpiece 18 flanging formings.
Described cylinder lever connecting rod 3 upper ends are connected with bull stick cylinder 12 by bull stick device 11, and bull stick device 11 is fixed on down on the hoisting cross beam 10 with bull stick cylinder 12; Drive by master cylinder 6 when following hoisting cross beam 10 is worked, realize loading decline; Drive by left and right sides kicker cylinder 7 under the Light Condition, realize the return after rising connects the mould and the demoulding.
There is branch sleeve 8 in described cylinder lever connecting rod 3 outsides, and meter wheel on the displacement detector 9 and branch sleeve 8 compress, and remember lifting position by the displacement of the lines tolerance lifting displacement on meter wheel surface in the course of the work.
Described punch 1 and cylinder lever connecting rod 3 are by the spline clamping.
Characteristics of the present invention are: rule of thumb formula is set and is cut hole dimension; Bore edges polishing polishing also carries out fault detection; The flange hole is annealing in process for the first time, strict control drawing temperature; Set the flange passage according to drop-down height of workpiece and material limits flanging coefficient, in the shaping passage of back, all should carry out corresponding annealing in process behind every time flange, and bore edges is carried out polishing and fault detection; The drop-down punch of pull bar enters deformed area (deformed area mainly forms by the gap adjustment of punch and die).Regulate drop-down speed to specifying numerical value, control pulling capacity this moment to minimum; The punch conical surface enters the deformed area fully, is lubricated at the punch calibrating strap; Drop-down punch puts in place, the workpiece flanging forming.Flange yield rate height of the present invention, technology advanced person, reasonable in design, can satisfy the requirement of user to product quality and productivity ratio.
Description of drawings
The invention will be further described below in conjunction with the embodiment accompanying drawing.
Fig. 1 is an embodiment of the invention structure partial schematic diagram;
Fig. 2 is punch and die structural representation;
Fig. 3 implements drop-down shaped portion structural representation;
Fig. 4 hangs the punch schematic diagram in the embodiment of the invention structure structure.
Among the figure: 1, punch; 2, die; 3, cylinder lever connecting rod; 4, workbench; 5, shears; 6, master cylinder; 7, left and right sides kicker cylinder; 8, branch sleeve; 9, displacement detector; 10, following hoisting cross beam; 11, bull stick device; 12, bull stick cylinder; 13, send the mould manipulator; 14, hydraulic cylinder; 15, guide post; 16, rack-and-pinion arm; 17, automatic gripping mechanism; 18, workpiece.
The specific embodiment
As shown in Figure 1 and Figure 2, master cylinder 6 places workbench 4 middles, and shears 5 is in the middle of master cylinder 6, and master cylinder 6 bilateral symmetry arrange that two left and right sides kicker cylinders 7 make master cylinder 6 backhauls.Two left and right sides kicker cylinders 7 that master cylinder 6 and bilateral symmetry are arranged are connected between workbench 4 and the following hoisting cross beam 10, (cylinder lever connecting rod 3 is a Tiebar structure to master cylinder 6 piston rod cylinder lever connecting rods 3, belong to lowering or hoisting gear) be connected with punch 1, die 2 is located in workbench 4 and master cylinder 6 lower ends.
Cylinder lever connecting rod 3 upper ends are connected with bull stick cylinder 12 by bull stick device 11, and bull stick device 11 is fixed on down on the hoisting cross beam 10 with bull stick cylinder 12.Drive by master cylinder 6 when following hoisting cross beam 10 is worked, realize loading decline; Drive by left and right sides kicker cylinder 7 under the Light Condition, realize the return after rising connects the mould and the demoulding.
There is branch sleeve 8 in cylinder lever connecting rod 3 outsides, and meter wheel on the displacement detector 9 and branch sleeve 8 compress, and remember lifting position by the displacement of the lines tolerance lifting displacement on meter wheel surface in the course of the work.
Punch 1 and cylinder lever connecting rod 3 are by the spline clamping.
As shown in Figure 3 and Figure 4; workpiece 18 during work after cutting the hole is put on the die 2; punch 1 is connected on the cylinder lever connecting rod 3; sending mould manipulator 13 to hang punch 1 by rack-and-pinion arm 16 sends to travel switch qualification position; left and right sides kicker cylinder 7 drives cylinder lever connecting rod 3 and rises near switch qualification position; 12 releases of bull stick cylinder; displacement detector 9 provides the lifting position signal that will store; bull stick cylinder 12 drives bull stick device 11 makes cylinder lever connecting rod 3 commentaries on classics advance 45 ° of matched moulds; left and right sides kicker cylinder 7 drives punch 1 downward rapid pretension workpiece by cylinder lever connecting rod 3; automatically gripping mechanism 17 is with Work-sheet pressing by flexible; master cylinder 6 begins to load drop-down until the final shaping that realizes workpiece 18; kicker cylinder 7 drive cylinder lever connecting rods 3 in the left and right sides rise to displacement detector 9 and provide the lifting position (by the computer memory area) that will store; send the mould manipulator to move ahead and connect mould; bull stick cylinder 12 drives bull stick device 11 makes cylinder lever connecting rod 3 commentaries on classics move back 45 ° of demouldings; kicker cylinder 7 decline releases in the left and right sides also drive cylinder lever connecting rod 3 declines; sending mould manipulator 13 to connect the mould return puts in place; this moment, gripping mechanism 17 was opened automatically, and workpiece 18 machines.
Send mould manipulator 13 generally to constitute by two guide posts 15 and the rack-and-pinion arm 16 of hydraulic cylinder 14, hydraulic cylinder 14 both sides; drive and two guide post 15 guiding at hydraulic cylinder 14, rack-and-pinion arm 16 moves the travel switch qualification position of punch 1 to die 2 tops.
The chamfer dimesion of workpiece flange bore edges is decided by the chamfer dimesion of die nib periphery, for guaranteeing yield rate, should rationally set the die size in conjunction with empirical equation by workpiece size.
Main flange flow process is as follows: rule of thumb formula is set and is cut hole dimension; Bore edges polishing polishing also carries out fault detection; The flange hole is annealing in process for the first time, strict control drawing temperature; Set the flange passage according to drop-down height of workpiece and material limits flanging coefficient, in the shaping passage of back, all should carry out corresponding annealing in process behind every time flange, and bore edges is carried out polishing and fault detection; The drop-down punch of pull bar enters deformed area (deformed area mainly forms by the gap adjustment of punch and die).Regulate drop-down speed to specifying numerical value, control pulling capacity this moment to minimum; The punch conical surface enters the deformed area fully, is lubricated at the punch calibrating strap; Drop-down punch puts in place, the workpiece flanging forming.