CN102814353B - Push rod device of metal extruder - Google Patents
Push rod device of metal extruder Download PDFInfo
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- CN102814353B CN102814353B CN201210317252.8A CN201210317252A CN102814353B CN 102814353 B CN102814353 B CN 102814353B CN 201210317252 A CN201210317252 A CN 201210317252A CN 102814353 B CN102814353 B CN 102814353B
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- push rod
- die holder
- power set
- rod
- pressing plate
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 21
- 238000001125 extrusion Methods 0.000 claims abstract description 23
- 238000010276 construction Methods 0.000 claims description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 6
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- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention provides a push rod device of a metal extruder. The push rod device comprises a push rod and a die holder, the rear end of the push rod is detachably arranged on the die holder, an axial through hole is arranged at the center of the push rod, a connecting rod is slidably arranged in the axial through hole, and the rear end of the connecting rod is detachably connected with a power device which is fixed to the die holder and drives the connecting rod to slide in the axial through hole to extend out of the axial through hole or retract into the axial through hole. When at an initial position, the push rod device is identical with a normal push rod in shape so as to have functions of the normal push rod when the extruder is in normal production. The additionally arranged connecting rod can be driven by the power device to move forward or backward, and equivalently effective strokes of the push rod are increased, so that a butt ingot can be pushed into an extrusion barrel during test run, and functions of the push rod device are enriched.
Description
Technical field
The present invention relates to reverse extruding metal machine equipment, particularly can the push rod device of metal extrusion press of local elongation.
Background technology
General by two stations on indirect extrusion machine body: pressure ram station and push rod station.Usually extruder more mold exchange time, push down with push rod device or withstand mould then die change.But there are being class special circumstances, such as when extruder test run (running-in period is the bug check stage before extruder formally puts into production), user, often in order to save test run cost, requires to use the spindle than shorter during normal production to carry out test run.The general operation of at this moment extruder work is: spindle is delivered to extruder extruding center line for ingot device, and now spindle is on ingot device, in the middle of pressure ram and recipient; Pressure ram starts extruding by pushing in recipient for the spindle on ingot device.As shown in Figure 1, existing pressure ram has a die holder 41 and a cylindricality pressure ram 42, and the rear end of pressure ram 42 is removably assemblied in described die holder 41, and pressure ram 42 front end is provided with an extrusion head 43.The normal spindle length used due to general large-size extruder is all greater than 2 meters, when pushing away ingot, pressure ram 42 need not be crossed and just can push in recipient by spindle for ingot device 44, so, pressure ram 42 its stroke when designing is not crossed for ingot device 44 one end, one is because the front end face of extrusion head 43 is generally than large for ingot device 44, will interfere if moved on for ingot device 44; Two is because the stroke of pressure ram 42 is the key parameter of whole equipment, if only in order to increase the stroke of one end when test run and change the parameter designing of whole equipment, also not too rational, short ingot when therefore current pressure ram station normally cannot complete test run pushes.
And if use push rod station to carry out short ingot to push, push rod device structure due to prior art is generally just assembled in the columnar member of die holder, also there is the problem that pressure ram is same, still do not have stroke flexibly, short ingot when normally cannot complete test run equally pushes.
Summary of the invention
The technical problem in ingot operation is pushed away for solution prior art, main purpose of the present invention is the push rod device that will provide a kind of metal extrusion press, it has normal push rod function when extruder is normally produced, when extruder test run, push rod again can local elongation, short ingot can be pushed in recipient.
Secondary objective of the present invention is to provide a kind of push rod device that can load and split out the metal extrusion press of die holder fast.
The present invention is achieved through the following technical solutions:
A kind of push rod device of metal extrusion press is proposed, there is a push rod and a die holder, the rear end of described push rod is removably disposed on described die holder, wherein, described push rod center has an axially extending bore, one connecting rod is slidably disposed in described axially extending bore, described rod rear end removably connects power set, described power set are fixed on described die holder, described power set drive described connecting rod to slide in described axially extending bore, reach outside described axially extending bore or in axially extending bore described in retraction.
The present invention is relative to the beneficial effect of prior art, and it is identical with normal push rod profile at initial position, so have normal push rod function when extruder is normally produced.The connecting rod set up can drive to reach by power set and return, and is equivalent to the effective travel adding push rod, so just can pushes in recipient by short ingot when test run, enriched the function of push rod device.
According to above-mentioned design, described connecting rod front end is equipped with one and movablely cuts somebody's hair, described in cut somebody's hair identical with described push rod main diameter, described in cut somebody's hair can be aligned in described push rod front end on.Front and back released by the connecting rod that can make like this, and front end acting surface is all as broad as long with former push rod, is conducive to the effectiveness normally playing push rod.
According to above-mentioned design, the inner chamber of the accommodating power set of energy is formed in described die holder, described die holder front end is the open end of removably assembling described putting back-end, inner cavity surface described in this open end place is axially open to the side of described push rod, and described open end place also extends upwardly to described die holder top forms a construction opening; A pressing plate is also assembled with outside described open end, described platen shape is the U-board part of opening upwards, described construction opening is formed between described pressing plate and die holder, this pressing plate can push down the rear end of described push rod, described push rod can from snap in described die holder through described construction opening, described connecting rod also snaps in the top of described power set from above.Utilize the construction opening be formed between pressing plate and die holder, and the U-shaped pressing plate of opening upwards, push rod can be loaded in die holder from top to bottom fast, certainly also can go out die holder by fast dismantling, production efficiency during replacing instrument can be improved.
According to above-mentioned design, described power set are a hydraulic cylinder arranged along the axis of described push rod, described power set comprise cylinder body, piston and piston rod, described cylinder body center offers hydraulic cavities, and described piston and piston rod are integrally slidedly arranged in described hydraulic cavities, described piston drives described piston rod to drive described connecting rod whereby and cuts somebody's hair and moves forward and return.Hydraulic cylinder is convenient to control and can provide enough thrust, and the direct adaptation of cylinder body in the lumen, is convenient to fixing and installs, and simplifying the structure.
According to above-mentioned design, the rear end of described push rod comprises the dop of pedestal and rear side, the external diameter of described pedestal is greater than in the middle part of described push rod and the external diameter of front end, described pedestal can coordinate with being socketed inside described pressing plate, described dop is the ring protuberance from the outside projection in described pedestal rear end, described dop can from snap in described die holder through described construction opening.The pedestal that external diameter is larger can better be fixed in die holder, and the form of dop can be convenient to last being fixed and clamped of pressing plate.
According to above-mentioned design, described connecting rod front end is and the described portion that is connected be connected of cutting somebody's hair, and rear end is can wear to described putting back-end to be removably connected to the axial trough of power set; Described piston rod front end is the bar head that necking down is formed, and described axial trough inside is the cavity volume of a described bar head shapes of coupling, and described cavity volume also extends to form an installation opening that can snap in for described bar head and shift out to bottom.With this, when push rod loads die holder from top to bottom fast, what axial trough also can be synchronous blocks bar head, and just can be realized driving connecting rod and the front and back of cutting somebody's hair by piston rod after snapping in.
According to above-mentioned design, the through hole of described push rod comprises minor diameter part, central diameter portion, large-diameter portion and department of assembly successively from rear end to front end; The positioning sleeve of a tool guiding and positioning action is had to be assembled in described large-diameter portion; Described connecting rod shank is divided into anterior thin rod part and the thick bar portion at rear portion, and described thin rod part is snug fit in the minor diameter part of described push rod, and described thick bar portion is snug fit in the positioning sleeve of described central diameter portion and large-diameter portion; Described thick bar portion is provided with the keyway of an axis, and described keyway internal fixtion has an antirotation keys, is also provided with the groove of the described antirotation keys that is slidably matched in described central diameter portion and positioning sleeve.Whereby, push rod when initial position, central diameter portion can positioning linkage rod axial trough top alignment dop end face and do not protrude from the position of this end face, and when push rod need extend, axial trough only can slide in central diameter portion.And positioning sleeve can effectively lead and positioning linkage rod, occurs hang one's head problem after pushing away certain stroke before preventing it.
According to above-mentioned design, the described inner chamber bottom side of described die holder, also be provided with a kerve, described kerve is fixed with the end key of the described power set in location and push rod, the inferior part of the cylinder block of described power set is also provided with the axial groove of end key described in coupling clamping, described dop from center on earth face be also formed one can overlap card the described end key chute, described chute is communicated to described through hole.Prevent power set and push rod from rotating with this, and can lead when installing power set.
According to above-mentioned design, and described dop rear end face is also formed with a groove from center to end face, described cylinder body front end face is also provided with vertical vertical guide keyway on the upside of hydraulic cavities, and described guide key groove internal fixtion has a vertical guide key, and described vertical guide bond energy is snug fit at the groove of described push rod.With this, when putting back-end enters from upside group and splits out die holder, vertical guide key can provide guide effect, can also localization handspike after having assembled simultaneously, prevents it from rotating.According to above-mentioned design, the width of described pressing plate is greater than the width of described inner chamber, and lower than described intracavity bottom bottom described pressing plate, the opening on described pressing plate top can supply described push rod move into from upside and shift out, described pressing plate utilizes multiple screw fastening on described die holder, and in described pressing plate, be formed with the assembly passage worn for push rod in the axial direction, opening described in described assembly channel connection, and the internal diameter of the circular arc portion of assembly passage be less than described inner chamber diameter described in pressing back-end face be formed with the card access surface that can fasten described putting back-end.The end face of the rear end of push rod can be pushed down with this pressing plate, prevent it from outwards tumbling.
Accompanying drawing explanation
Fig. 1 is the schematic diagram carrying out pushing away ingot in prior art with pressure ram,
Fig. 2 is the cross-sectional schematic of the push rod device of metal extrusion press of the present invention.
Fig. 3 is the cross-sectional schematic of pusher section of the present invention.
Fig. 4 is the cross-sectional schematic of die holder parts of the present invention.
Fig. 5 is the front-end architecture schematic diagram of die holder parts of the present invention.
Fig. 6 is the cross-sectional schematic of linkage component of the present invention.
Fig. 7 is the combination schematic diagram of inventive piston and piston rod part.
Wherein, description of reference numerals is as follows: 1 die holder, 11 inner chambers, 12 bearing surfaces, 13 open ends, 131 construction openings, 14 kerves, 2 push rods, 20 through holes, 21 rear ends, 210 pedestals, 211 dops, 22 front ends, 23 cut somebody's hair, 231 retaining lugs, screwed hole 232, 24 connecting rods, 241 axial troughs, 242 are connected portion, 243 thin rod parts, 244 thick bar portions, 245 keyways, 25 chutes, 26 grooves, 27 positioning sleeves, 3 power set, 30 hydraulic cavities, 30A rodless cavity, 30B rod chamber, 31 cylinder bodies, 311 necking parts, 312 vertical guide keyways, 313 axial grooves, 32 cylinder bottoms, 33 pistons, 331 sealing rings, 34 piston rods, 341 bar heads, 35 plunger packing letters, 41 die holders, 42 pressure rams, 43 extrusion heads, 44 for ingot device, 5 screws, 6 vertical guide keys, 7 antirotation keys, 8 end keys, 9 pressing plates, 91 screws, 92 openings, 93 card access surfaces, 94 assembly passages.
Detailed description of the invention
The exemplary embodiments embodying feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various changes in different embodiments, it neither departs from the scope of the present invention, and explanation wherein and to be shown in be use when explain in essence, and be not used to limit the present invention.
As shown in Figure 2: the push rod device that the invention provides a kind of metal extrusion press, have a die holder 1, cylindricality push rod 2 and the power set 3 be installed in die holder 1, the rear end 21 of push rod 2 is removably assemblied in die holder 1.Wherein:
As shown in Fig. 2, Fig. 4 and Fig. 5, in die holder 1, form the inner chamber 11 of the accommodating power set 3 of energy.Inner chamber 11 is cylindrical in coupling push rod 2 rear end 21 shape.Die holder 1 front end is the open end 13 of removably assembling push rod 2 rear end 21, open end 13 is axially open towards push rod 2 side, and open end 13 place also extend upwardly to die holder 1 top form a construction opening 131(Fig. 2 and with reference to Fig. 5), so that push rod 2 rear end 21 to move into from upside by construction opening 131 and shifts out die holder 1.Power set 3 are placed in die holder 1 rear portion, and the rear end of die holder 1 inside contracts the bearing surface 12 being formed and fasten power set 3.In inner chamber 11 bottom side of die holder 1 bearing surface 12 front portion, also be provided with a kerve 14, for fixing key 8 at the bottom of, certain cylinder body 31 also mates end key 8 and is provided with axial groove 313, end key 8 rotates in inner chamber for preventing power set 3, and end key 8 can also block the rear end 21 of push rod 2, prevent it from rotating in inner chamber 11.The open end 13 of die holder 1 front end is outer is also assembled with a pressing plate 9, pressing plate 9 shape is the U-board part of opening upwards, the width of pressing plate 9 is greater than the width of inner chamber 11, and bottom is lower than bottom inner chamber 11, the opening 92 on top can supply push rod 2 move into from upside and shift out, pressing plate 9 utilizes multiple screw 91 to be anchored on die holder 1, and be formed with the assembly passage 94(that wears for push rod 2 in pressing plate 9 in the axial direction as Fig. 4, shown in Fig. 5), assembly passage 94 open communication 92, the internal diameter of the circular arc portion of assembly passage 94 is less than the diameter of inner chamber 11, to be formed with the card access surface 93 that can fasten push rod 2 rear end 21 at assembly passage 94 rear portion, rear end 21 its right end face of push rod 2 can be pushed down with this pressing plate 9, prevent it from tumbling.
As shown in Figure 2 and Figure 3, the rear end 21 of push rod 2 is removably assemblied in die holder 1, and push rod 2 front end 22 is equipped with one and movablely cuts somebody's hair 23, cuts somebody's hair 23 identical with push rod 2 main diameter, push rod 2 center is formed with axially extending bore 20, and through hole 20 runs through rear end 21 and the front end 22 of push rod 2.The rear end 21 of push rod 2 comprises the dop 211 of pedestal 210 and rear side, the external diameter of pedestal 210 is greater than in the middle part of push rod 2 and the external diameter of front end 21, pedestal 210 is socketed with the assembly passage 94 of pressing plate 9 and coordinates, dop 211 is the ring protuberances from the outside projection in pedestal 210 rear end, it is push rod 2 external diameter the best part, dop 211 can be placed in open end 13, and the left side of dop 211 can be stuck in card access surface 93.Dop 211 from center on earth face be also formed with the chute 25 that can be overlapped key 8 at the bottom of card, chute 25 is communicated to through hole 20, and dop 211 rear end face is also formed with a groove 26 from center to end face.
As shown in Figure 3, the through hole 20 of push rod 2 is stepped endoporus, comprise the minor diameter part 201 in the middle part of from rear end 21 to push rod 2, the central diameter portion 202 at middle part, middle part 202 to front end 22 large-diameter portion 203 and be positioned at large-diameter portion 203 department of assembly 204 foremost.A positioning sleeve 27 is assembled in large-diameter portion 203, and positioning sleeve 27 can be the self-lubricating copper sheathing of guiding and positioning action.Have a connecting rod 24 to be slidedly arranged in the through hole 20 of push rod 2, connecting rod 24 front end is and the portion that is connected 242 of 23 connections of cutting somebody's hair, and rear end is then for can wear the axial trough 241 being removably connected to power set 3 to push rod 2 rear end 21.Connecting rod 24 shaft is divided into anterior thin rod part 243 and the thick bar portion 244 at rear portion, and thin rod part 243 is snug fit in the minor diameter part 201 of push rod 2, and thick bar portion 244 is snug fit in central diameter portion 202 and positioning sleeve 27; Thick bar portion 244 is provided with the keyway 245 of an axis, is used for fixing an antirotation keys 7 in keyway 245, correspondingly, also has the groove for the antirotation keys 7 that is slidably matched in central diameter portion 202 and positioning sleeve 27.Push rod 2 is when initial position, cut somebody's hair and 23 be pressed on the front end 22 of push rod 2, axial trough 241 top alignment dop 211 end face of connecting rod 24 and do not protrude from the position of this end face, and when push rod 2 need extend, power set 3 just can slide by driven forward axial trough 241 in central diameter portion 202.
As shown in Figure 2,23 corresponding push rod 2 one sides of cutting somebody's hair are preferably formed as the retaining lugs 231 of a coupling department of assembly 204, retaining lugs 231 center also has a screwed hole 232,242, the portion that the is connected adaptation of the front end of connecting rod 24 is positioned this screwed hole 232, and the portion 242 that is connected preferably is spirally connected with screwed hole 232 and assembles.
As shown in Figure 2, power set 3 are fixed in die holder 1, and power set 3 can drive link 24 and 23 axial advancement and returning of cutting somebody's hair.Embodiments of the invention medium power device 3 is the hydraulic cylinder that a forwards bar 2 is axially arranged, and comprises cylinder body 31, cylinder bottom 32, piston 33, piston rod 34 and plunger packing letter 35.Cylinder body 31 is the cylindrical of adaptive inner chamber 11 shape, center offers hydraulic cavities 30, cylinder body 31 rear end is provided with the necking part 311 coordinated with bearing surface 12, and utilizes multiple screw 5 to be fixed between bearing surface 12 and necking part 311, makes power set 3 be fixed on die holder 1.Cylinder body 31 front end face is also provided with vertical guide keyway 312 on the upside of hydraulic cavities 30, to fix a vertical guide key 6, vertical guide key 6 can be snug fit at the groove 26 of push rod 2 rear end 21, with this, when push rod 2 rear end 21 enters from upside group and splits out die holder 1, vertical guide key 6 can provide guide effect, can also localization handspike 2 after having assembled simultaneously, prevents it from rotating.Cylinder body 31 also mates end key 8 in bottom necking part 311 front portion and is provided with axial groove 313, axial groove 313 runs through necking part 311 and cylinder body 31 front end face, rotates, simultaneously with end key 8 for preventing power set 3 in inner chamber, when power set 3 are loaded inner chamber 11, axial key is provided to lead effect.
As shown in Figure 2, cylinder bottom 32 is closed in hydraulic cavities 30 rear end; And piston 33 and piston rod 34 are integrally slidedly arranged in hydraulic cavities 30, piston 33 periphery has at least one sealing ring 331, hydraulic cavities 30 is divided into rodless cavity 30A and rod chamber 30B by piston 33, the part of piston 33 rear piston-rodless 34 is rodless cavity 30A, the part of piston rod 34 is had to be then rod chamber 30B, there is in cylinder body 31 the hydraulic oil duct be communicated with rodless cavity 30A and rod chamber 30B respectively, piston 33 moves forward and backward by hydraulic oil effect in rodless cavity 30A or rod chamber 30B, and drive piston rod 34 realize to connecting rod 24 and cut somebody's hair 23 front and back drive; 35, plunger packing letter is installed on hydraulic cavities 30 front end, for sealing and the guiding of piston rod 34.As shown in Figure 6, Figure 7, piston rod 34 front end is the bar head 341 that necking down is formed, accordingly, axial trough 241 inside coordinated with its interlock is the cavity volume 2411 of matching stub head 341 shape, interlock can be engaged with this bar head 341 with axial trough 241, and cavity volume 2411 also extends to form an installation opening 2412 that can snap in for bar head 341 and shift out to bottom.At the initial position of power set 3, the bar head 341 of piston rod 34 protrudes from the front end of cylinder body 31, outstanding height is less than the degree of depth of push rod 2 upper hopper chute 25, so that when push rod 2 loads die holder 1 from the construction opening 131 of upside, chute 25 can slip over bar head 341 to be continued downwards.
With reference to Fig. 2, when the push rod device of metal extrusion press provided by the invention is installed, comprise following steps:
(1), push rod is assembled.First positioning sleeve 27 is assembled in large-diameter portion 203 by department of assembly 204; Again antirotation keys 7 is axially arranged in the keyway 245 of connecting rod 24; Then by connecting rod 24 with thin rod part 243 in the posterior form in front thick bar portion 244, insert on the right side of push rod 2 through hole 20, push rod 2 through hole 20 coordinates with axial antirotation keys 7, and rotating relative to push rod 2 can not occur such connecting rod 24; Finally will cut somebody's hair and 23 to be threaded with connecting rod 24, during 23 nature of cutting somebody's hair and push rod 2 end face fit.
(2), die holder 1 and power set are assembled.Front, power set 3 are loaded die holder 1 by open end 13 with necking part 311, necking part 311 is fastened on bearing surface 12, utilize screw 5 that power set 3 are fixed on die holder 1; Be tightened to outside die holder open end 13 in advance by pressing plate 9 again, now the screw 91 of pressing plate 9 not exclusively tightens, and reserves certain surplus, so that the spacing between card access surface 93 and construction opening 131 can allow dop 211 snap in.
(3), push rod 2 is sling in loading die holder 1.Using the push rod 2 assembled, connecting rod 24, axial antirotation keys 7, cut somebody's hair 23 as one assembling entirety lift from top to bottom in die holder 1.Groove 26 on push rod 2 and vertical guide key 6 form key guiding relation, and bar head 341 and chute 25 also form key simultaneously and to lead relation; When the axial centre of push rod 2 overlaps with die holder 1 axial centre, bar head 341 loads in cavity volume 2411 by installation opening 2412, and the axial trough 241 on connecting rod 24 contains the bar head 341 of piston rod 4 just.
(4), compress push rod 2, complete assembling.Screw 91 on pressing plate 9 is tightened completely, makes pressing plate 9 push down rear end 21 its right end face of push rod 2, prevent it from tumbling.
With reference to Fig. 2, when the push rod device of metal extrusion press provided by the invention uses, in the rodless cavity 30A of power set 3, inject high pressure liquid force feed, in rod chamber 30B during oil return, piston rod 4 driven forward connecting rod 24 and cutting somebody's hair 23 moves; And when rodless cavity 30A oil return, when injecting high pressure liquid force feed in rod chamber 30B, piston rod 4 pulls back connecting rod 24 and cuts somebody's hair 23.And the distance of connecting rod 24 and 23 movements of cutting somebody's hair is determined by the stroke of oil cylinder.So, just make push rod 2 except having normal push rod function when extruder is normally produced, also when extruder test run, push rod again can local elongation, is namely equivalent to the effective travel adding push rod, so just short ingot also can be able to be pushed in recipient.
The push rod device of metal extrusion press of the present invention is identical with normal push rod profile at initial position, so have normal push rod function when extruder is normally produced.The connecting rod set up and axle of cutting somebody's hair can drive to reach by power set and return, and are equivalent to the effective travel adding push rod, so just can be pushed in recipient by short ingot when test run.Utilize the construction opening be formed between pressing plate and die holder, and the U-shaped pressing plate of opening upwards, push rod can be loaded in die holder from top to bottom fast, certainly also can go out die holder by fast dismantling, production efficiency during replacing instrument can be improved.
Although with reference to exemplary embodiment describing the present invention, should be appreciated that term used illustrates and exemplary and nonrestrictive term.Spirit or the essence of invention is not departed from because the present invention can specifically implement in a variety of forms, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and explain widely in the spirit and scope that should limit in claim of enclosing, therefore fall into whole change in claim or its equivalent scope and remodeling and all should be claim of enclosing and contained.
Claims (8)
1. a push rod device for metal extrusion press, has a push rod and a die holder, and the rear end of described push rod is removably disposed on described die holder, it is characterized in that,
Described push rod center has an axially extending bore, one connecting rod is slidably disposed in described axially extending bore, described rod rear end removably connects power set, described power set are fixed on described die holder, described power set drive described connecting rod to slide in described axially extending bore, reach outside described axially extending bore or in axially extending bore described in retraction;
Described connecting rod front end is equipped with one and movablely cuts somebody's hair, described in cut somebody's hair identical with described push rod main diameter, described in cut somebody's hair can be aligned in described push rod front end on;
The inner chamber of the accommodating power set of energy is formed in described die holder, described die holder front end is the open end of removably assembling described putting back-end, inner cavity surface described in this open end place is axially open to the side of described push rod, and described open end place also extends upwardly to described die holder top forms a construction opening;
A pressing plate is also assembled with outside described open end, described platen shape is the U-board part of opening upwards, described construction opening is formed between described pressing plate and die holder, this pressing plate can push down the rear end of described push rod, described push rod can from snap in described die holder through described construction opening, described connecting rod also snaps in the top of described power set from above.
2. the push rod device of metal extrusion press as claimed in claim 1, it is characterized in that, described power set are a hydraulic cylinder arranged along the axis of described push rod, described power set comprise cylinder body, piston and piston rod, described cylinder body center offers hydraulic cavities, and described piston and piston rod are integrally slidedly arranged in described hydraulic cavities, described piston drives described piston rod to drive described connecting rod whereby and cuts somebody's hair and moves forward and return.
3. the push rod device of metal extrusion press as claimed in claim 2, it is characterized in that, the rear end of described push rod comprises the dop of pedestal and rear side, the external diameter of described pedestal is greater than in the middle part of described push rod and the external diameter of front end, described pedestal can coordinate with being socketed inside described pressing plate, described dop is the ring protuberance from the outside projection in described pedestal rear end, described dop can from snap in described die holder through described construction opening.
4. the push rod device of metal extrusion press as claimed in claim 3, it is characterized in that, described connecting rod front end is and the described portion that is connected be connected of cutting somebody's hair, and rear end is can wear to described putting back-end to be removably connected to the axial trough of power set; Described piston rod front end is the bar head that necking down is formed, and described axial trough inside is the cavity volume of a described bar head shapes of coupling, and described cavity volume also extends to form an installation opening that can snap in for described bar head and shift out to bottom.
5. the push rod device of the metal extrusion press as described in any one of Claims 1-4, is characterized in that, the through hole of described push rod comprises minor diameter part, central diameter portion, large-diameter portion and department of assembly successively from rear end to front end; The positioning sleeve of a tool guiding and positioning action is had to be assembled in described large-diameter portion; Described connecting rod shank is divided into anterior thin rod part and the thick bar portion at rear portion, and described thin rod part is snug fit in the minor diameter part of described push rod, and described thick bar portion is snug fit in the positioning sleeve of described central diameter portion and large-diameter portion; Described thick bar portion is provided with the keyway of an axis, and described keyway internal fixtion has an antirotation keys, is also provided with the groove of the described antirotation keys that is slidably matched in described central diameter portion and positioning sleeve.
6. the push rod device of the metal extrusion press as described in claim 3 or 4, it is characterized in that, the described inner chamber bottom side of described die holder, also be provided with a kerve, described kerve is fixed with the end key of the described power set in location and push rod, the inferior part of the cylinder block of described power set is also provided with the axial groove of end key described in coupling clamping, described dop from center on earth face be also formed with one and can overlap the chute blocking key of the described end, described chute is communicated to described through hole.
7. the push rod device of the metal extrusion press as described in claim 3 or 4, it is characterized in that, and described dop rear end face is also formed with a groove from center to end face, described cylinder body front end face is also provided with vertical vertical guide keyway on the upside of hydraulic cavities, described guide key groove internal fixtion has a vertical guide key, and described vertical guide bond energy is snug fit at the groove of described push rod.
8. the push rod device of the metal extrusion press as described in any one of Claims 1-4, it is characterized in that, the width of described pressing plate is greater than the width of described inner chamber, and lower than described intracavity bottom bottom described pressing plate, the opening on described pressing plate top can supply described push rod move into from upside and shift out, described pressing plate utilizes multiple screw fastening on described die holder, and in described pressing plate, be formed with the assembly passage worn for push rod in the axial direction, opening described in described assembly channel connection, and the internal diameter of the circular arc portion of assembly passage is less than the diameter of described inner chamber, described pressing back-end face is formed with the card access surface that can fasten described putting back-end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210317252.8A CN102814353B (en) | 2012-08-31 | 2012-08-31 | Push rod device of metal extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210317252.8A CN102814353B (en) | 2012-08-31 | 2012-08-31 | Push rod device of metal extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102814353A CN102814353A (en) | 2012-12-12 |
| CN102814353B true CN102814353B (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210317252.8A Expired - Fee Related CN102814353B (en) | 2012-08-31 | 2012-08-31 | Push rod device of metal extruder |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075559U (en) * | 1990-05-10 | 1991-04-24 | 刘连生 | Single moving direct type seamless tube extruding machine |
| CN2794680Y (en) * | 2005-05-16 | 2006-07-12 | 傅丙仲 | Hydraulic three step push pipe making machine |
| CN201644545U (en) * | 2010-03-26 | 2010-11-24 | 佛山市业精机械制造有限公司 | Rod feed mechanism of short-stroke extrusion machine |
| CN201880842U (en) * | 2010-12-14 | 2011-06-29 | 齐齐哈尔二机床(集团)有限责任公司 | Push-out rod device of automatic forging press |
| CN102205358A (en) * | 2011-03-30 | 2011-10-05 | 太原重工股份有限公司 | Spindle-pushing device for metal extruding machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6277146A (en) * | 1985-09-28 | 1987-04-09 | Mazda Motor Corp | Deciding method for caulking |
| JP3074669B2 (en) * | 1995-02-03 | 2000-08-07 | 宇部興産株式会社 | Extrusion press |
-
2012
- 2012-08-31 CN CN201210317252.8A patent/CN102814353B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075559U (en) * | 1990-05-10 | 1991-04-24 | 刘连生 | Single moving direct type seamless tube extruding machine |
| CN2794680Y (en) * | 2005-05-16 | 2006-07-12 | 傅丙仲 | Hydraulic three step push pipe making machine |
| CN201644545U (en) * | 2010-03-26 | 2010-11-24 | 佛山市业精机械制造有限公司 | Rod feed mechanism of short-stroke extrusion machine |
| CN201880842U (en) * | 2010-12-14 | 2011-06-29 | 齐齐哈尔二机床(集团)有限责任公司 | Push-out rod device of automatic forging press |
| CN102205358A (en) * | 2011-03-30 | 2011-10-05 | 太原重工股份有限公司 | Spindle-pushing device for metal extruding machine |
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| Publication number | Publication date |
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| CN102814353A (en) | 2012-12-12 |
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