A kind of perforation of rolling ring hammer cogging is without damage device and its processing method
Technical field
The present invention relates to a kind of forging and stamping ring trepanning molding machines, perforate more particularly, to a kind of rolling ring hammer cogging lossless
Device and its processing method.
Background technology
It is the common preparatory processing material base applied in engineering mechanical components to forge and press ring, is rolling over ring forging industry, hot rolling
It is usually with ring billet preparation method:Blanking → heating → jumping-up → heating → punching;Traditional cogging technics are using right after upsetting
Blank is punched out, and will produce the block that rushes of 5-10Kg, so-called cogging puncturing technique in punch process;
Such as CN 1442250A《The processing technology of ring parts》It uses hot-rolled steel bar for raw material, is made by following steps
Part forging:Material base is heated to 900 DEG C one 1250 DEG C of one forcing press base of temperature with heating equipment by blanking one, main to pass through
Upset forming, one Ring Rolling Machine reaming of punching work step, one die-forging forming.
Such as CN 1491758A《The production technology of wheel rim》Steel are sawn into one block of block blank, reheating is carried out to blank
And base and roll milling forming processing are punched out respectively to hot base, steel are carried out not during punching base and roll milling forming
Disconnected forging and squeezing.Machining is carried out to the wheel rim of roll milling forming, then examines storage afterwards.
Although the step of all disclosing punching, without proposing the technical problems to be solved by the invention, do not producing
In the case that block is rushed in life, realizes the lossless trepanning of blank, and modifier treatment is carried out to blank, avoids reheating energy saving,
It avoids producing product and shrinkage cavity, crackle and other issues occurs.
Invention content
The present invention is directed to the deficiency of existing product, and provides a kind of rollings ring hammer cogging and perforate without damage device and its processing side
Method.The technical problem to be solved by the present invention is to:The block that rushes that blank occurs in the production process of trepanning is avoided, production material is saved
Material, improves the mechanical performance of product.
A kind of rolling ring hammer cogging of the present invention is perforated without damage device, and described device includes upper forging and stamping platform, blank, lifting
Guide rod, lower forging and stamping platform, reaming axis, oblique milling roller, blank be placed on forging and stamping platform and lower forging and stamping platform between, it is described it is upper forge and press platform it is upper
End is fixedly connected with press upper beam, and press upper beam movable set is on operation guide rail, the corresponding position in lower section of upper forging and stamping platform
Storing is equipped with lower forging and stamping platform;The upper surface of lower forging and stamping platform is provided with forging and stamping platform, and the surrounding for forging and pressing platform is connected with lifting guide pillar,
The center setting of platform is forged and pressed there are one convex card slot, lower footstock is installed in convex card slot, the first half of lower footstock is
Cone, lower half are boss identical with embossed card groove shape, and the lower end of the lower footstock is connected with elevating ram, lifting oil
Cylinder is mounted on the inside of lower forging and stamping platform;Reaming axis, the upper end of the reaming axis and upper forging and stamping platform are installed below upper forging and stamping platform
It being movably hinged, reaming axis interlude is equipped with transmission gear, and the driving engaged gears of transmission gear and hydraulic motor are sequentially connected,
Hydraulic motor is mounted below the left side of cursor, and cursor is fixedly connected with runner assembly by flange, runner assembly installation
It is run simultaneously up and down with press upper beam on the operation guide rail of press upper beam, in the center line of reaming axis and lower footstock
On unified vertical line, the both sides of the blank and oblique milling roller connect heart line.
Further, the reaming axis includes reaming main shaft, upper pressure loop coil, interior loop coil, reaming set, transition reaming ring;It is described
It is thread segment that the lower semisection of reaming main shaft, which is provided with three sections, respectively upper thread segment A, intermediate thread section B, lower thread segment C, reaming
Main shaft bottom is the trepanning conehead of cone, and transition reaming ring, transition reaming ring and reaming master are equipped with above trepanning conehead
For axis by lower thread segment C connections, the top of transition reaming ring is that reaming set, reaming set and reaming main shaft pass through intermediate thread section B
The top of connection, reaming set is equipped with pressure loop coil, and upper pressure loop coil is connected with reaming main shaft by thread segment A;The reaming
The inside of set is equipped with interior loop coil, and interior loop coil is connected with reaming spindle thread section A.
Further, the hand of spiral of the upper thread segment A, lower thread segment C and intermediate thread section B are on the contrary, and upper thread segment
A, the outer diameter of lower thread segment C is smaller than intermediate thread section B.
Further, the upper end of the reaming axis is installed with unilateral bearing, and unilateral bearing is mounted on upper forging and stamping platform lower surface
It is oriented in installation card slot.
Further, the runner assembly includes guide rail sliding sleeve, guide rail mounting base, rotary electric machine mounting base, rotary electric machine, cunning
Cover mounting flange, oil-way;The guide rail mounting base is connected by bolt with press upper beam, and guide rail sliding sleeve is sleeved on guide rail
The inside of mounting base and operation guide rail are slidably matched;Sliding sleeve mounting flange is mounted on the both ends of the surface of guide rail mounting base, and guide rail is slided
Lock set is in guide rail mounting base;Rail mounting base side is provided with rotary electric machine mounting base, rotary electric machine mounting base and rotary electric machine
Connection, the rotary electric machine are connected by mounting flange with cursor.
The invention also discloses a kind of processing method of rolling ring hammer cogging perforation without damage device, include the following steps:
A, blank is put into heating furnace, after being heated to 1200 DEG C, is kept for 120 minutes;
B, the blank heated is hung to the upper of the forging and stamping platform for moving on to lower forging and stamping platform, forging and stamping platform is declined by lifting guide pillar, under
Footstock is risen by elevating ram, and lower footstock is installed in the convex card slot of forging and stamping platform by collective effect;Upper forging and stamping platform downlink
Upsetting pressure is carried out to blank, the blank lower half portion after upsetting pressure can form bellmouth identical with lower footstock shape;
C, after blank forging and stamping, runner assembly drives cursor to be movably hinged the upper end of reaming axis and upper forging and stamping platform, installation
After upper forging and stamping platform drive reaming axis downlink, and reaming axis being rotated by hydraulic motor together, blank is in Xia Ding
Under the collective effect of seat and reaming axis, by blank trepanning symmetrical above and below;
D, after the symmetrical trepanning of blank, reaming axis continues traveling downwardly, and lower footstock is pushed into lower forging and stamping platform by trepanning conehead, blank
By transition reaming ring, opening diameter becomes larger, and blank completes lossless extruding trepanning using reaming set.
The beneficial effects of the invention are as follows:
1, reasonable for structure, jumping-up may be implemented, squeeze punching and disposably complete, without carrying out reheating, be greatly saved plus
The required energy of heat, improves production efficiency;
2, highly practical, securely and reliably;Since reaming axis is vulnerable part, must integrally be reported after traditional reaming axis surface is cracked
Useless, the multistage thread segment design of reaming axis facilitates the replacement that reaming covers, and greatly reduces use cost, while effectivelying prevent reaming
Be sleeved on squeeze reaming during realize it is locking, avoid influence endoporus processing dimension, it is ensured that product processing quality.
3, during hot-puncturing process, the strain field and thermo parameters method of workpiece have very big shadow to the forming quality of metal round billet
Ring, this technique using oblique milling tooling cooperation the perforating of round billet, squeezed hole, can well solve during roll piercing at base
Quality problems.The product for avoiding reheating and rushing the generation of block, and processing, since metallic fiber streamline is in profiling
Property, by flow forming, there is good heterogeneous microstructure, greatly provide height its mechanical performance, avoid producing
Out there is shrinkage cavity, crackle and other issues in product.
Description of the drawings
Structural schematic diagram when Fig. 1 is the jumping-up of the present invention.
Structural schematic diagram when Fig. 2 is the punching of the present invention.
Fig. 3 is the structural schematic diagram of the runner assembly of the present invention.
Fig. 4 is the structural schematic diagram of the reaming axis of the present invention.
Fig. 5 is the reaming axis mounting structure schematic diagram of the present invention.
Fig. 6 is the lossless extruding trepanning operation principle structural schematic diagram of the present invention.
In figure:Upper forging and stamping platform 1, blank 2, lifting guide pillar 3, lower forging and stamping platform 4, reaming axis 5, oblique milling roller 6, press upper beam
7, lower footstock 8, runner assembly 9, cursor 10, hydraulic motor 11, guiding mounting groove 12;It is reaming main shaft 51, upper pressure loop coil 52, interior
Loop coil 53, reaming set 54, transition reaming ring 55, trepanning conehead 56;Guide rail sliding sleeve 91, guide rail mounting base 92, rotary electric machine installation
Seat 93, rotary electric machine 94, sliding sleeve mounting flange 95, oil-way 96.
Specific implementation mode
With reference to embodiment, the invention will be further described.
The present invention a kind of rolling ring hammer cogging perforation without damage device mainly by upper forging and stamping platform 1, blank 2, lifting guide pillar 3,
Lower forging and stamping platform 4, reaming axis 5, oblique milling roller 6, press upper beam 7, lower footstock 8, runner assembly 9, cursor 10, hydraulic motor 11,
It is oriented to mounting groove 12;Reaming main shaft 51, upper pressure loop coil 52, interior loop coil 53, reaming set 54, transition reaming ring 55;Guide rail sliding sleeve 91,
Guide rail mounting base 92, rotary electric machine mounting base 93, rotary electric machine 94, sliding sleeve mounting flange 95, oil-way 96 form.
As shown in Figure 1, 2, a kind of rolling ring hammer cogging of the invention is perforated without damage device, and described device includes upper forging and stamping platform
1, blank 2, lifting guide pillar 3, lower forging and stamping platform 4, reaming axis 5, oblique milling roller 6, blank 2 are placed on forging and stamping platform 1 and lower forging and stamping platform 4
Between, the upper end of the upper forging and stamping platform 1 is fixedly connected with press upper beam 7, and 7 movable set of press upper beam is in operation guide rail
On, the corresponding position in lower section of upper forging and stamping platform 1 is placed with lower forging and stamping platform 4;The upper surface of lower forging and stamping platform 4 is provided with forging and stamping platform,
The surrounding and lifting guide pillar 3 for forging and pressing platform connect, and forge and press the center setting of platform there are one convex card slot, in convex card slot
Lower footstock 8 is installed, the first half of lower footstock 8 is cone, and lower half is boss identical with embossed card groove shape, under described
The lower end of footstock 8 is connected with elevating ram, and elevating ram is mounted on the inside of lower forging and stamping platform 4;The lower section of upper forging and stamping platform 1 is equipped with
Reaming axis 5, the upper end of the reaming axis 5 and upper forging and stamping platform 1 are movably hinged, and 5 interlude of reaming axis is equipped with transmission gear, are driven
The driving engaged gears of gear and hydraulic motor 11 are sequentially connected, and hydraulic motor 11 is mounted below the left side of cursor 10, turn
Swing arm 10 is fixedly connected with runner assembly 9 by flange, and runner assembly 9 is mounted on the operation guide rail of press upper beam 7, and pressure
About 7 machine upper beam is run simultaneously, and the center line of the center line of reaming axis 5 and lower footstock 8 is on unified vertical line, the blank
2 both sides and oblique milling roller 6 connect.The present invention rolles over the perforation of ring hammer cogging without damage device, and jumping-up may be implemented, squeeze punching
It is disposable to complete, without carrying out reheating, the energy needed for heating is greatly saved, improves production efficiency.
Shown in Fig. 4, the reaming axis 5 includes reaming main shaft 51, upper pressure loop coil 52, interior loop coil 53, reaming set 54, transition expansion
Orifice ring 55;It is thread segment that the lower semisection of the reaming main shaft 51, which is provided with three sections, respectively upper thread segment A, intermediate thread section B,
Lower thread segment C, 51 bottom of reaming main shaft are the trepanning conehead 56 of cone, and 56 top of trepanning conehead is equipped with transition reaming ring
55, transition reaming ring 55 is connected with reaming main shaft 51 by lower thread segment C, and the top of transition reaming ring 55 is that reaming covers 54, is expanded
Hole set 54 is connected with reaming main shaft 51 by intermediate thread section B, and the top of reaming set 54 is equipped with pressure loop coil 52, upper pressure loop coil
52 are connected with reaming main shaft 51 by thread segment A;The inside of reaming set 54 is equipped with interior loop coil 53, interior loop coil 53 and and
The 51 thread segment A connections of reaming main shaft.The hand of spiral of the upper thread segment A, lower thread segment C and intermediate thread section B are on the contrary, on and
Thread segment A, the outer diameter of lower thread segment C are smaller than intermediate thread section B.
The multistage thread segment design of reaming axis 5 facilitates the replacement of reaming set 54 while reaming set 54 being effectively prevent to squeeze expansion
Realized during hole it is locking, avoid influence endoporus processing dimension, it is ensured that product processing quality.
By 2 center top pressure trepanning of blank, the transition reaming ring 55 of rear cone squeezes hole to be expanded trepanning conehead 56
External table to the overall diameter of reaming set 54, reaming set 54 is provided with antifriction alloy carbon dust coating, and antifriction alloy carbon dust coating has
The outer wall of effect protection reaming set 54 ensures that hole is diffused into required aperture in vertical centre by the precision of interior hole machined, reaming set 54,
The product for avoiding reheating and rushing the generation of block, and processing is revolved since metallic fiber streamline is in profiling
Turn extrusion forming, there is good heterogeneous microstructure, greatly provides height its mechanical performance, while process velocity is fast,
The process heated again after a jumping-up is reduced than common hot-puncturing process.
Shown in Fig. 3, the runner assembly 9 includes guide rail sliding sleeve 91, guide rail mounting base 92, rotary electric machine mounting base 93, turns
Dynamic motor 94, sliding sleeve mounting flange 95, oil-way 96;The guide rail mounting base 92 is connected by bolt and press upper beam 7,
Guide rail sliding sleeve 91 is sleeved on the inside of guide rail mounting base 92 and operation guide rail is slidably matched;Sliding sleeve mounting flange 95 is mounted on guide rail
The both ends of the surface of mounting base 92, by the lock of guide rail sliding sleeve 91 in guide rail mounting base 92;92 side of rail mounting base is provided with rotary electric machine
Mounting base 93, rotary electric machine mounting base 93 and rotary electric machine 94 connect, and the rotary electric machine 94 passes through mounting flange and cursor
10 connections.
As shown in Figure 6, the invention also discloses a kind of processing method of rolling ring hammer cogging perforation without damage device, including with
Lower step:
A, blank 2 is put into heating furnace, after being heated to 1200 DEG C, is kept for 120 minutes;
B, the blank 2 heated is hung to the upper of the forging and stamping platform for moving on to lower forging and stamping platform 4, forging and stamping platform is declined by lifting guide pillar 3,
Lower footstock 8 is risen by elevating ram, and lower footstock 8 is installed in the convex card slot of forging and stamping platform by collective effect;Upper forging and stamping platform 1
Downlink carries out upsetting pressure to blank 2, and 2 lower half portion of blank after upsetting pressure can form bellmouth identical with lower 8 shape of footstock;
C, after blank 2 forges and presses, runner assembly 9 drives cursor 10 by the upper end of reaming axis 5 and upper 1 moveable hinge of forging and stamping platform
It connects, upper forging and stamping platform 1 drives the downlink together of reaming axis 5 after installing, and reaming axis 5 turns under the driving of hydraulic motor 11
Dynamic, blank 2 is under the collective effect of lower footstock 8 and reaming axis 5, by 2 trepanning symmetrical above and below of blank;
D, after 2 symmetrical trepanning of blank, reaming axis 5 continues traveling downwardly, and lower footstock 8 is pushed into lower forging and stamping platform 4 by trepanning conehead 56
Interior, by transition reaming ring 55, opening diameter becomes larger blank 2, and blank 2 is completed lossless extruding using reaming set 54 and opened
Hole.
During hot-puncturing process, the strain field and thermo parameters method of workpiece have very big shadow to the forming quality of metal round billet
Ring, this technique using oblique milling tooling cooperation the perforating of round billet, squeezed hole, can well solve during roll piercing at base
Quality problems.
A kind of rolling ring hammer cogging of the present invention is perforated without damage device, is avoided reheating and is rushed the generation of block, and
The product processed, by flow forming, has good microstructure knot since metallic fiber streamline is in profiling
Structure greatly provides height its mechanical performance.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.