CN106975720B - A kind of occlusion forging of step axis blank - Google Patents
A kind of occlusion forging of step axis blank Download PDFInfo
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- CN106975720B CN106975720B CN201710210699.8A CN201710210699A CN106975720B CN 106975720 B CN106975720 B CN 106975720B CN 201710210699 A CN201710210699 A CN 201710210699A CN 106975720 B CN106975720 B CN 106975720B
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- mold core
- face
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- lower mold
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/025—Closed die forging
Abstract
The present invention discloses a kind of occlusion forging of step axis blank, including：1) bar heated is put into lower mold core and is molded；2) when mould cavity pressure P increases to the back pressure Fs that four top shoes are born, four top shoes move radially outwards, and as cavity pressure further increases, when increasing to the back pressure Fx that four sliding blocks are born, four sliding blocks also begin to move radially outwards；3) since Fx is more than, the speed that the blank that Fs and four top shoe contacts radially flows is fast, and radially flowing velocity is slow with the blank of four sliding blocks contact；4) both final to reach simultaneously or successively reach the limit of position, four top shoes are blocked by the material that performs, and four sliding blocks are blocked by lower stopper, and forming ends；5) it molds.The present invention can complete the forming of the complexity blank in an equipment, have production efficiency high, forging streamline is good, high-quality, it is easy to accomplish mechanization and automation.
Description
Technical field
The present invention relates to metal-forming techniques fields, and in particular to a kind of occlusion forging of step axis blank.
Background technology
Axis is generally configured to step according to its requirement, and blank forming mode generally has bar forging, multi-pass
Squeeze pier nose forming, cross wedge rolling forming, radial forging or swaging etc..Bar forging there is efficiency low, stock utilization
The problems such as low, multi-pass squeezes pier nose low production efficiency, needs multistation equipment, and cross wedge rolling, radial forging or swaging
It is required for special equipment.
Invention content
The purpose of the present invention is to provide a kind of occlusion forgings of step axis blank, are squeezed with solving existing tradition forging
The low problem of the existing efficiency of pressure, and cross wedge rolling, radial forging or swaging need special equipment, invest big problem.This
Invention can complete the forming of the complexity blank in an equipment, have production efficiency high, forging streamline is good, high-quality, easily
In realize mechanization and automation the characteristics of.
To achieve the goals above, the present invention adopts the following technical scheme that：
Sawing obtains bar, and --- --- --- pre- graphitization --- heating --- step occludes ball blast for sorting of weighing
Multiway forging obtains forging.
A kind of occlusion forging of step axis blank, the occlusion finish forge device based on a kind of step axis blank, described
The occlusion finish forge device of rank axis blank includes upper die and lower die core, top shoe structure, downslide block structure, shrink ring, guide and limit
Cylinder, support plate and lower die holder；Guide and limit cylinder is fixed on lower die holder, and the bottom of guide and limit cylinder is fixed with resistance unit, resistance
It is fixed with support plate at the top of power unit；Be placed the lower mold core and shrink ring of coaxial arrangement in support plate, shrink ring and
Lower mold core is tightened together by interference fit, and shrink ring is set to lower mold core periphery；Upper mold coaxial arrangement in lower mold core and
Above shrink ring, it is fixed on press ram, can moves up and down with press ram；Lower mold core is equipped with cavity, cavity
In be equipped with for coordinating forming step shaft-like work top bar and the top shoe structure got out of a predicament or an embarrassing situation and downslide block structure with lower mold core；
The centre bore of lower die holder is equipped with can be along the centre bore up and down motion lower push rod of lower die holder；Lower push rod upper ends upper ejector pin；
Upper ejector pin extends in the lower mold core centre bore of lower mold core；The axial direction of lower mold core be equipped with lower mold core centre bore, get out of a predicament or an embarrassing situation hole and
Top bar hole, the wherein diameter in top bar hole are equal to the diameter of the top bar of workpiece, and the diameter in hole of getting out of a predicament or an embarrassing situation is equal under workpiece
The diameter of step；The cross-shaped aperture being provided symmetrically at the top of lower mold core, excircle of each aperture position in lower mold core
It is equipped with upper guide runner and lower guide runner；Each there are one top shoe structures for installation in upper guide runner, each pacify in lower guide runner
There are one downslide block structures for dress；
The occlusion forging of the step axis blank includes the following steps：
1) bar heated is put into lower mold core, the top shoe of four top shoe structures and four downslide block structures
Sliding block withstands under upper elastic element and the effect of lower elastic element or respectively close to bar, upper mold pressure, upper mold after molding,
Lower mold core and shrink ring DL synchronization under the action of forcing press, squeezing action retrofilling cavity of the bar in upper mold；
Wherein, the identical back pressure Fs that the top shoe of four top shoe structures is born, and the downslide of four downslide block structures
Block bears identical back pressure Fx, and Fx is more than Fs,
During upper die and lower die core moves downward, pressure in die cavity increases, due to bar surrounding by top shoe and
Sliding block supports, and because four top shoes and four sliding blocks bear identical back pressure, thus bar only occur jumping-up without
Bending；
2) since Fx is more than Fs, when mould cavity pressure P increases to the back pressure Fs that four top shoes are born, four top shoes
It moves radially outwards, as cavity pressure further increases, when increasing to the back pressure Fx that four sliding blocks are born, four downslides
Block also begins to move radially outwards；
3) speed that radially flows of blank for being more than the contact of Fs and four top shoe due to Fx is fast, and with four
Radially flowing velocity is slow for the blank of sliding block contact；
4) both final to reach simultaneously or successively reach the limit of position, forming ends；
5) forcing press backhaul, while upper mold moves upwards, resistance unit pushes lower mold core, shrink ring to be synchronized with upper mold
Uplink, when shrink ring encounters the limiting device of guide and limit cylinder, lower mold core stops uplink after moving to upper limit position, at this time
Upper mold continues up, and mold is opened；
6) lower push rod pushes up upwards, ejects workpiece by upper ejector pin, four top shoes and four sliding blocks are in upper elastic element
It is resetted under the action of lower elastic element.
Further, the resistance unit is oil cylinder, and oil cylinder is fixed on by stepped hole on lower die holder；Column is housed in oil cylinder
Plug, plunger can move up and down under the control of oil pressure along oil cylinder；Cylinder upper end is fixed with limited block, for the movement to plunger
It is limited；Upper end is fixed with support plate.
Further, the lower surface center of upper mold is set there are one locating slot, is positioned to bar when for shaping.
Further, top shoe structure includes top shoe, upper elastic element and upper stopper；Top shoe includes being connected with each other
The front end of upper forming block and upper guide pad, upper forming block has upper working face；The side slide guide face of the both sides of upper forming block and cross
The corresponding side wall cooperation of opening of setting；Upper guide pad is installed in guide runner；The front end of upper guide pad is equipped with prelocalization face,
The front end positioning surface cooperation of the prelocalization face of upper guide pad and upper guide runner, to top shoe radially downward mold core center movement into
Row positioning；Upper elastic element one end supports in the hole on the rear end face of upper guide pad, and the other end supports the hole in upper stopper
In, upper stopper is fastened in guide runner；
Downslide block structure includes sliding block, lower elastic element lower stopper；Sliding block include be connected with each other lower forming block and
The front end of lower guide pad, lower forming block has lower working face；The corresponding side wall of opening of the both sides and cross setting of lower forming block
Cooperation；Lower guide pad is installed in lower guide runner；The front end of lower guide pad be equipped with prelocalization face, the prelocalization face of lower guide pad and
The front end positioning surface cooperation of lower guide runner positions the movement at sliding block mold core center radially downward；Lower elastic element one
End supports in the hole on the rear end face of lower guide pad, and the other end supports in the hole in lower stopper, and lower stopper, which is fastened on down, to be led
In sliding slot.
Further, upper working face is cambered surface, and radian is identical as the radian of top bar；Upper guide pad is radially transported
Dynamic, rear end face reaches capacity position when encountering the front end face of upper stopper, at this time the inner surface of four upper working faces and top bar hole
It is surrounded by a complete disc, the diameter of the disc is identical as the diameter of top bar, highly identical as the height of top bar；
Lower working face is cambered surface, and radian is identical as the radian got out of a predicament or an embarrassing situation；Lower guide pad moves radially outwards, rear end face
Reach capacity position when the front end face for encountering lower stopper, and four lower working faces and the inner surface in hole of getting out of a predicament or an embarrassing situation are surrounded by one at this time
Complete disc, the diameter of the disc is identical as the diameter got out of a predicament or an embarrassing situation, highly identical as the height got out of a predicament or an embarrassing situation.
Further, upper elastic element and lower elastic element are spring or controlled hydraulic resistance element.
Further, upper stopper is fixed in guide runner；Lower stopper is fixed in lower guide runner.
Compared with the existing technology, the present invention realizes the forming of Step Shaft using two-step method, has the following advantages：
1) two Step Shafts can be completed in primary pressure, have the characteristics that efficient.
2) forming accuracy of product is high, stock utilization is high.
3) it can be realized on ordinary press, low for equipment requirements, processing flexibility is good.
4) remarkable in economical benefits improves.
Description of the drawings
Fig. 1 is the schematic diagram of bar；
Fig. 2 is the schematic diagram of workpiece；
Fig. 3 is schematic diagram when building mortion forging starts；
Fig. 4 is the schematic diagram at the end of building mortion forging；
Fig. 5 is the schematic diagram of upper mold；
Fig. 6 is the schematic diagram of lower mold core；
Fig. 7 is the schematic diagram of top shoe；
Fig. 8 is the schematic diagram of sliding block；
Fig. 9 is the schematic diagram of upper stopper；
Figure 10 is the schematic diagram of lower stopper；
Figure 11 is the sectional view of the line A-A along Fig. 3；
Figure 12 is the sectional view of the line B-B along Fig. 3；
Figure 13 is the sectional view of the line C-C along Fig. 4；
Figure 14 is the sectional view of the line D-D along Fig. 4.
Specific implementation mode
Refering to Figure 1, bar 1 is cylindrical metal bar.It please refers to shown in Fig. 2, finally wanted molding workpiece 2
Including cylinder-shaped body 203 and be arranged 203 middle and upper part of main body top bar 201 and get out of a predicament or an embarrassing situation 202, the diameter of top bar 201
More than get out of a predicament or an embarrassing situation 202 diameter；Get out of a predicament or an embarrassing situation 202 diameter be less than top bar 201 diameter, be more than main body 203 diameter.
It please refers to shown in Fig. 3 to Figure 14, the occlusion finish forge device of step axis blank used by present invention process, including upper
Mould 3, lower mold core 4, top shoe structure 5, downslide block structure 6, shrink ring 7, guide and limit cylinder 8, support plate 9, oil cylinder 13 and under
Die holder 14.
Guide and limit cylinder 8 is fixed on lower die holder 14, and oil cylinder 13 is fixed on lower die holder by guide and limit cylinder 8 by stepped hole
On 14.Plunger 12 is housed, plunger 12 can move up and down under the control of oil pressure along oil cylinder 13 in oil cylinder 13.13 upper end of oil cylinder is solid
Surely there is limited block 11, for being limited to the movement of plunger 12.12 upper end of plunger is fixed with support plate 9.It is placed in support plate 9
The lower mold core 4 and shrink ring 7, shrink ring 7 and lower mold core 4 for coaxial arrangement are tightened together by interference fit, are answered in advance
Power circle 7 is set to 4 periphery of lower mold core.Lower push rod 15 is housed in 14 centre bore of lower die holder, it can be along the centre bore of lower die holder 14
Lower movement；15 upper ends of lower push rod upper ejector pin 10, can eject workpiece 2 along the centre bore of lower mold core 4.
Please refer to shown in Fig. 5,31 center of lower surface of upper mold 3 sets that there are one locating slots 32, when for shaping to blank 1 into
Row positioning；After molding, lower surface 31 and lower mold core 4 contact, and push 4 downlink of lower mold core.
It please referring to shown in Fig. 3,4,6, the axial direction of lower mold core 4 is equipped with centre bore 43, get out of a predicament or an embarrassing situation hole 42 and top bar hole 41,
Wherein the diameter in top bar hole 41 is more than the diameter in hole 42 of getting out of a predicament or an embarrassing situation, and 42 diameter of hole of getting out of a predicament or an embarrassing situation is more than the diameter of centre bore 43,
The diameter in middle top bar hole 41 is equal to the diameter of the top bar 201 of workpiece 2, and the diameter in hole 42 of getting out of a predicament or an embarrassing situation is equal to the leave from office of workpiece 2
The diameter of rank 202；It is ejected for convenience of blowing and forging, is equipped with and pulls out on centre bore 43, get out of a predicament or an embarrassing situation hole 42 and top bar hole 41
Mould gradient.Upper mold 3 is coaxially disposed above lower mold core 4 and shrink ring 7, is fixed on press ram, can be with forcing press
Sliding block moves up and down.
The cross-shaped aperture 40 that the top of lower mold core 4 is provided symmetrically, excircle of each aperture position in lower mold core
On be provided with guide runner 44 and lower guide runner 45；44 front end of upper guide runner has front end positioning surface 441, rear end to have rear alignment face；
Lower 45 front end of guide runner has front end positioning surface 451, rear end to have rear alignment face；Each there are one upper cunnings for installation in upper guide runner 44
Block 51, each there are one sliding blocks 61 for installation in lower guide runner 45.
Top shoe 51 includes the upper forming block 5100 being connected with each other and upper guide pad 5101, the front end tool of upper forming block 5100
There are upper working face 512, upper working face 512 to possess 1 degree of pattern draft；The both sides of upper forming block 5100 are side slide guide face 513, are used
It is equipped with upper slide guide face 511 in the top of the side wall cooperation with corresponding opening, upper forming block 5100；Upper guide pad 5101 is installed on
In guide runner 44, the width of upper guide runner 44 is more than the width of opening；The width of upper guide pad 5101 is more than upper forming block 5100
Width, the front end of upper guide pad 5101 is equipped with prelocalization face 514, the front end positioning surface 441 in prelocalization face 514 and upper guide runner
Cooperation, the movement at 4 center of mold core radially downward of top shoe 51 is positioned；Elastic member is also equipped in upper guide runner 44
Part 52 and upper stopper 53；53 both sides ear 534 of upper stopper is equipped with threaded hole 533, and upper stopper 53 passes through two spiral shells by screw
Pit 533 is fixed in guide runner 44；Rear alignment face of the front end face 532 of upper stopper 53 as 44 rear end of upper guide runner,
The sliding extreme position outside for limiting top shoe 51；The front end face 532 of upper stopper 53 is equipped with groove 531；Upper elasticity member
52 rear end of part is mounted in groove 531, and 52 front end of upper elastic element is mounted in the groove of guide pad 5101；Upper elastic element 52
One end supports on the rear end face 515 of upper guide pad 5101, and the other end supports in upper stopper 53.Upper working face 512 is cambered surface,
Its radian is identical as the radian of top bar 201；Upper guide pad 5101 moves radially outwards, and rear end face 515 encounters upper stopper 53
Front end face 532, reach capacity position, at this time four working faces 512 and the inner surface in top bar hole 41 be surrounded by one it is complete
Disc, the diameter of the disc is identical as the diameter of top bar 201, highly identical as the height of top bar 201.
Sliding block 61 includes the lower forming block 6100 being connected with each other and lower guide pad 6101, the front end tool of lower forming block 6100
There are lower working face 612, lower working face 612 to possess 1 degree of pattern draft；The both sides of lower forming block 6100 are side slide guide face 613, are used
It is equipped with upper slide guide face 61 in the top of the side wall cooperation with corresponding opening, lower forming block 6100；Lower guide pad 6101 is installed on down
In guide runner 45, the width of lower guide runner 45 is more than the width of opening；The width of lower guide pad 6101 is more than lower forming block 6100
Width, the front end of lower guide pad 6101 is equipped with prelocalization face 614, the front end positioning surface 451 in prelocalization face 614 and lower guide runner
Cooperation, the movement at 4 center of mold core radially downward of sliding block 61 is positioned；Lower elasticity member is also equipped in lower guide runner 45
Part 62 and lower stopper 63；63 both sides ear 634 of lower stopper is equipped with threaded hole 633, and lower stopper 63 passes through two spiral shells by screw
Pit 633 is fixed in lower guide runner 45；Rear alignment face of the front end face 632 of lower stopper 63 as 45 rear end of lower guide runner,
The sliding extreme position outside for limiting sliding block 61；The front end face 632 of lower stopper 63 is equipped with groove 631；Lower elasticity member
62 rear end of part is mounted in groove 631, and lower 62 front end of elastic element is mounted in the groove of lower guide pad 6101；Lower elastic element
62 one end support on the rear end face 615 of lower guide pad 6101, and the other end supports in lower stopper 63.Working face 612 is cambered surface,
Its radian with get out of a predicament or an embarrassing situation 202 radian it is identical；Lower guide pad 6101 moves radially outwards, and rear end face 615 encounters lower stopper 63
Front end face 632 when, reach capacity position, and four lower working faces 612 and the inner surface in hole 42 of getting out of a predicament or an embarrassing situation are surrounded by one at this time
Complete disc, the diameter of the disc with get out of a predicament or an embarrassing situation 202 diameter it is identical, highly with get out of a predicament or an embarrassing situation 202 height it is identical.
In the present invention, upper mold 3 is connected with press ram, is moved up and down under the drive of press ram.Lower die holder 14
It is fixed on press bench face.
--- sorting of weighing --- ball blast --- the pre- graphitization --- heating --- in the present invention, by the good bar 1 of sawing
One step occludes multiway forging, obtains forging 2.
A kind of occlusion forging of step axis blank of the present invention, includes the following steps：
1) bar 1 heated is put into lower mold core 4, the top shoe 51 of four top shoe structures 5 and four sliding blocks
The sliding block 61 of structure 6 is withstood or under upper elastic element 52 and the effect of lower elastic element 62 close on bar 1 respectively, upper mold
3 pressures, upper mold 3, lower mold core 4 and shrink ring 7 overcome the resistance DL synchronization of oil cylinder 13 under the action of forcing press after molding,
Bar 1 upper mold 3 squeezing action retrofilling cavity,
2) the identical back pressure Fs that wherein four top shoes 51 are born, and four sliding blocks 61 bear identical back pressure Fx,
And Fx is more than Fs,
3) during upper mold 3, lower mold core 4 move downward, the pressure in die cavity increases, since 1 surrounding of bar is by upper
Sliding block 51 and sliding block 61 support, and because four top shoes 51 and four sliding blocks 61 respectively bear identical back pressure, therefore stick
Material only occurs jumping-up and will not be bent.
4) since Fx is more than Fs, when mould cavity pressure P increases to the back pressure Fs that four top shoes 51 are born, four upper cunnings
Block moves radially outwards, as cavity pressure further increases, when increasing to the back pressure Fx that four sliding blocks 61 are born, and four
Sliding block 61 also begins to move radially outwards.
Since the speed that radially flows of blank that Fx is more than the contact of Fs and four top shoe 51 is fast, and with four
Radially flowing velocity is slow for the blank that sliding block 61 contacts.
5) both final to reach or successively reach the limit of position simultaneously, four top shoes 51 are blocked by the material 53 that performs, and
Four sliding blocks 61 are blocked by lower stopper 63, and forming ends.
6) then, forcing press backhaul, while upper mold 3 moves upwards, resistance unit pushes lower die 4, shrink ring 7 with upper
3 uplink synchronization of mould, when shrink ring 7 encounters the limiting device of guide and limit cylinder 8, lower die moves to upper limit position, by being oriented to
The top of position-limiting drum 8 stops uplink after blocking, upper mold 3 continues up at this time, and mold is opened.
7) lower push rod 15 pushes up upwards, ejects workpiece 2 by upper ejector pin 10, follow-up work step is sent by manipulator clamping workpiece 2.
At the same time four top shoes 51 and four sliding blocks 61 reset under the action of upper elastic element 52 and lower elastic element 62, etc.
It waits for shaping next time.
Claims (6)
1. a kind of occlusion forging of step axis blank, which is characterized in that the occlusion finish forge dress based on a kind of step axis blank
It sets, the occlusion finish forge device of the step axis blank includes upper mold (3), lower mold core (4), top shoe structure (5), downslide block structure
(6), shrink ring (7), guide and limit cylinder (8), support plate (9) and lower die holder (14)；Guide and limit cylinder (8) is fixed on lower die holder
(14) on, the bottom of guide and limit cylinder is fixed with resistance unit, and support plate (9) is fixed at the top of resistance unit；Support plate (9)
On be placed the lower mold core (4) and shrink ring (7) of coaxial arrangement, shrink ring (7) and lower mold core (4) are tight by being interference fitted
Gu together, shrink ring (7) is set to lower mold core (4) periphery；Upper mold (3) is coaxially disposed in lower mold core (4) and shrink ring
(7) top, is fixed on press ram, can move up and down with press ram；Lower mold core (4) is equipped with cavity, in cavity
Be equipped with for and lower mold core (4) cooperation forming step shaft-like work (2) top bar (201) and the top shoe knot of (202) of getting out of a predicament or an embarrassing situation
Structure (5) and downslide block structure (6)；The centre bore of lower die holder (14) is equipped with can be under the up and down motion of the centre bore of lower die holder (14)
Mandril (15)；Lower push rod (15) upper ends upper ejector pin (10)；Upper ejector pin (10) extends to the lower mold core center of lower mold core (4)
In hole (43)；The axial direction of lower mold core (4) is equipped with lower mold core centre bore (43), hole of getting out of a predicament or an embarrassing situation (42) and top bar hole (41),
The diameter of middle top bar hole (41) is equal to the diameter of the top bar (201) of workpiece (2), and the diameter of hole of getting out of a predicament or an embarrassing situation (42) is equal to workpiece
(2) diameter of get out of a predicament or an embarrassing situation (202)；The cross-shaped aperture (40) being provided symmetrically at the top of lower mold core (4), be each open position
It sets and is equipped with upper guide runner (44) and lower guide runner (45) on the excircle of lower mold core (4)；Each installation in upper guide runner (44)
There are one top shoe structures (5), each descend in guide runner (45) downslide block structure (6) there are one installing；
The occlusion forging of the step axis blank includes the following steps：
1) bar heated (1) is put into lower mold core (4), under the top shoe (51) and four of four top shoe structures (5)
The sliding block (61) of slide block structure (6) respectively under upper elastic element (52) and lower elastic element (62) effect close to bar (1),
Upper mold (3) is depressed, upper mold (3), lower mold core (4) and shrink ring (7) DL synchronization, bar under the action of forcing press after molding
(1) in the squeezing action retrofilling cavity of upper mold (3)；
Wherein, the identical back pressure Fs that the top shoe (51) of four top shoe structures (5) is born, and four downslide block structures (6)
Sliding block (61) bear identical back pressure Fx, and Fx is more than Fs,
During upper mold (3), lower mold core (4) move downward, the pressure in die cavity increases, since bar (1) surrounding is by upper
Sliding block (51) and sliding block (61) support, and because four top shoes (51) bear it is identical by pressure Fs and four sliding block (61)
Identical back pressure Fx is born, therefore jumping-up only occurs for bar (1) without being bent；
2) since Fx is more than Fs, when mould cavity pressure P increases to the back pressure Fs that four top shoes (51) are born, four top shoes
(51) it moves radially outwards, as cavity pressure further increases, when increasing to the back pressure Fx that four sliding blocks (61) are born,
Four sliding blocks (61) also begin to move radially outwards；
3) speed that radially flows of blank for being more than the contact of Fs and four top shoe (51) due to Fx is fast, and with four
Radially flowing velocity is slow for the blank of sliding block (61) contact；
4) both final to reach simultaneously or successively reach the limit of position, forming ends；
5) forcing press backhaul, while upper mold (3) moves upwards, resistance unit pushes lower mold core (4), shrink ring (7) with upper
Mould (3) uplink synchronization, when shrink ring (7) encounters the limiting device of guide and limit cylinder (8), lower mold core (4) moves to limes superiors
Stop uplink behind position, upper mold (3) continues up at this time, and mold is opened；
6) lower push rod (15) pushes up upwards, and workpiece (2), four top shoes (51) and four sliding blocks are ejected by upper ejector pin (10)
(61) it is resetted under the action of upper elastic element (52) and lower elastic element (62) respectively.
2. a kind of occlusion forging of step axis blank according to claim 1, which is characterized in that the resistance unit
For oil cylinder (13), oil cylinder is fixed on by the stepped hole of guide and limit cylinder (8) on lower die holder；Plunger (12), column are housed in oil cylinder
Plug can move up and down under the control of oil pressure along oil cylinder (13)；Oil cylinder (13) upper end is fixed with limited block (11), for column
The movement of plug (12) is limited；Plunger (12) upper end is fixed with support plate (9).
3. a kind of occlusion forging of step axis blank according to claim 1, which is characterized in that under upper mold (3)
Centre of surface is set there are one locating slot (32), is positioned to bar (1) when for shaping.
4. a kind of occlusion forging of step axis blank according to claim 1, which is characterized in that top shoe structure
(5) include top shoe (51), upper elastic element (52) and upper stopper (53)；Top shoe (51) includes the upper forming block being connected with each other
(5100) and upper guide pad (5101), the front end of upper forming block (5100) have upper working face (512)；Upper forming block (5100)
The corresponding side wall cooperation of the opening (40) of the side slide guide face (513) of both sides and cross setting；Upper guide pad (5101) is installed on
In guide runner (44)；The front end of upper guide pad (5101) is equipped with prelocalization face (514), the prelocalization face of upper guide pad (5101)
(514) coordinate with the front end positioning surface of upper guide runner (44) (441), to the fortune at top shoe (51) mold core (4) center radially downward
It is dynamic to be positioned；Upper elastic element (52) one end supports in the hole on the rear end face (515) of upper guide pad (5101), the other end
It supports in the hole (531) in upper stopper (53), upper stopper (53) is fastened in guide runner (44)；
Downslide block structure (6) includes sliding block (61), lower elastic element (62) lower stopper (63)；Sliding block (6) includes mutually interconnecting
The front end of the lower forming block (6100) connect and lower guide pad (6101), lower forming block (6100) has lower working face (612)；It is lower at
The corresponding side wall cooperation of the opening (40) of the both sides (613) of shape block (6100) and cross setting；Lower guide pad (6101) is installed on
In lower guide runner (45)；The front end of lower guide pad (6101) is equipped with prelocalization face (614), the prelocalization face of lower guide pad (6101)
(614) with the front end positioning surface of lower guide runner (45) (451) coordinate, to sliding block radially downward mold core (4) center movement into
Row positioning；Lower elastic element (62) one end supports in the hole on the rear end face (615) of lower guide pad (6101), and the other end supports
In hole (631) in lower stopper (63), lower stopper (63) is fastened in lower guide runner (45).
5. a kind of occlusion forging of step axis blank according to claim 4, which is characterized in that upper working face
(512) it is cambered surface, radian is identical as the radian of top bar (201)；Upper guide pad (5101) moves radially outwards, rear end face
(515) reach capacity position when front end face (532) for encountering upper stopper (53), at this time four upper working faces (512) and top bar
The inner surface in hole (41) is surrounded by a complete disc, and the diameter of the disc is identical as the diameter of top bar (201), highly with
The height of top bar (201) is identical；
Lower working face (612) is cambered surface, and radian is identical as the radian of (202) of getting out of a predicament or an embarrassing situation；Lower guide pad (6101) radially to
Outer movement, rear end face (615) reach capacity position when encountering front end face (632) of lower stopper (63), at this time four lower working faces
(612) inner surface with hole (42) of getting out of a predicament or an embarrassing situation is surrounded by a complete disc, the diameter of the disc and the straight of (202) of getting out of a predicament or an embarrassing situation
Diameter is identical, highly identical as the height of (202) of getting out of a predicament or an embarrassing situation.
6. a kind of occlusion forging of step axis blank according to claim 4, which is characterized in that upper elastic element
(52) and lower elastic element (62) is spring or controlled hydraulic resistance element.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192015A (en) * | 2013-04-10 | 2013-07-10 | 西安建筑科技大学 | Automotive alternator claw-pole closed-type hot-forging device and process thereof |
| CN203649268U (en) * | 2014-01-07 | 2014-06-18 | 四川丰元机械制造有限公司 | Closed die for forging stepped shaft bar materials |
| CN104028952A (en) * | 2013-03-07 | 2014-09-10 | 江苏龙城精锻有限公司 | High-pressure common rail system oil injecting nozzle block forming technology |
| CN104325058A (en) * | 2014-11-17 | 2015-02-04 | 河南平高电气股份有限公司 | Forging mould and forming die of forging mould |
| CN105195659A (en) * | 2015-09-30 | 2015-12-30 | 江苏龙城精锻有限公司 | Guide-pin-based multidirectional closed forging device and technology for special-shaped oil sprayer body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19962607B4 (en) * | 1999-12-23 | 2007-08-02 | Schuler Pressen Gmbh & Co. Kg | Tool cassette with resilient die |
-
2017
- 2017-03-31 CN CN201710210699.8A patent/CN106975720B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028952A (en) * | 2013-03-07 | 2014-09-10 | 江苏龙城精锻有限公司 | High-pressure common rail system oil injecting nozzle block forming technology |
| CN103192015A (en) * | 2013-04-10 | 2013-07-10 | 西安建筑科技大学 | Automotive alternator claw-pole closed-type hot-forging device and process thereof |
| CN203649268U (en) * | 2014-01-07 | 2014-06-18 | 四川丰元机械制造有限公司 | Closed die for forging stepped shaft bar materials |
| CN104325058A (en) * | 2014-11-17 | 2015-02-04 | 河南平高电气股份有限公司 | Forging mould and forming die of forging mould |
| CN105195659A (en) * | 2015-09-30 | 2015-12-30 | 江苏龙城精锻有限公司 | Guide-pin-based multidirectional closed forging device and technology for special-shaped oil sprayer body |
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