CN106623467A - Cold extruder for machining sprayer shaft and machining process of sprayer shaft - Google Patents
Cold extruder for machining sprayer shaft and machining process of sprayer shaft Download PDFInfo
- Publication number
- CN106623467A CN106623467A CN201710100617.4A CN201710100617A CN106623467A CN 106623467 A CN106623467 A CN 106623467A CN 201710100617 A CN201710100617 A CN 201710100617A CN 106623467 A CN106623467 A CN 106623467A
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- Prior art keywords
- mold
- axle
- arbor
- spraying
- mould
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/21—Presses specially adapted for extruding metal
- B21C23/212—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C26/00—Rams or plungers; Discs therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The invention discloses a cold extruder for machining a sprayer shaft. The cold extruder comprises an upper extrusion part, an extrusion table, a demolding part, a PLC control system, a hydraulic system and a guide support column; the upper extrusion part is supported by the guide support column; the upper extrusion part and the demolding part are driven by the hydraulic system to perform an extrusion motion along the guide support column; and the PLC control system controls the hydraulic system to work. The cold extruder is characterized in that the upper extrusion part includes an upper pressing head and an upper mold; the upper mold and the upper pressing head are detachably connected; a detachable lower mold is arranged on the extrusion table; a hole is formed in the bottom of the lower mold; the demolding part is provided with a hydraulic cylinder and a demolding rod driven by the hydraulic cylinder; and the demolding rod is positioned rightly below the hole of the lower mold. The cold extruder solves the problems of low machining efficiency and high machining cost in large-batch machining of shafts used by atomizing agents in the prior art.
Description
Technical field
The present invention relates to mechanical manufacturing field, spy be related to a kind of cold extrusion press of processing spraying arbor and spraying arbor plus
Work technique.
Background technology
It is a kind of structure chart of typical spraying arbor in accompanying drawing 1, to two ends shaft diameter in step between spraying arbor therefrom
Formula reduces, and major diameter axle excessively, also has spline or gear structure, using routine to the shaft shoulder between small diameter shaft on spraying arbor
Processing mode is extremely difficult, and human cost is very high.
Generally the processing mode of axle is turning, if from lathe in machining, although the quality of numerically controlled lathe processing is good,
But processing cost is higher, feed to be processed more than once to shaft-like work, the amount of each turning is very limited, behind process
Spline will be also processed further using gear shapping machine or gear-hobbing machine, and whole technological process is very long.If added from turn
Work, it is higher to the requirement of workman's qualification, and can also be present larger difference in the workpiece that different workmans are processed, need independent
Quality inspection, needs for processing spline or gear structure in addition after machining, and working (machining) efficiency is also very low.Be not suitable for very much high-volume
Processing.
On the other hand, by turning and the product of gear shaping or gear hobbing process, will certainly carry many materials when waste material is removed
High material cost.
The content of the invention
For the deficiencies in the prior art, the invention provides the cold extrusion press and arbor of spraying of a kind of processing spraying arbor
Processing technology, the axle that spray is used in solution prior art working (machining) efficiency present in high-volume processing is low, is processed into
This high problem.
The technical scheme is that：A kind of cold extrusion press of processing spraying arbor, including it is upper press section, squeeze station, de-
Mould portion, PLC control system, hydraulic system, guide support column, upper press section is supported by guide support column, and upper press section is in hydraulic pressure
Compressional movement is done along guide support column under the driving of system, PLC control system controls the work of hydraulic system, and its feature exists
In：Upper press section includes seaming chuck and mold, and with seaming chuck using being removably connected, squeeze station is provided with removable mold
The lower mould for unloading, the bottom of described lower mould is provided with through hole；Demoulding portion is provided with the knockout pin of hydraulic cylinder and Driven by Hydraulic Cylinder, takes off
Tringle is located at the underface of lower mould through hole and may pass through through hole.
Optionally, mold and the axle extrusion die that lower mould is the spatial model with spraying machine shape shaft size characteristic
External member, the maximum position of spraying machine shaft diameter is that the boundary of mold and lower mould is interval, the spatial mode of mold and lower mould
Type is in cylinder and from outside to inside diameter gradually successively decreases in notch cuttype.
Optionally, mold has the tooth extruding mold and light face axle of spline or gear feature including profile inner space
Mold, lower mould includes mould under the lower support mode of tooth extruding and light face axle, the space shape in described tooth extruding mold
Shape presses the spline or gear shape size design of spraying arbor, and described tooth extruding mold and described tooth extrudes lower hold mode
Tool is supported the use；Spatial form under light face axle mold and light face axle in mould is designed by the size shape of spraying arbor, light
Mould is supported the use and the spline or gear parts mould on the axle of light face on correspondence spraying arbor under face axle mold and light face axle
Mould retains gear compound graduation circular diameter thickness, remaining corresponding part mould under light face axle mold and light face axle under tool and light face axle
Tool leaves the allowance of 1mm.
Light face axle mold in mold is supported the use with mould is corresponding under the axle of light face, and blank is put into extruder,
Tooth extruding mold in mold is supported the use with support mode is corresponding under the tooth extruding in lower mould, processes spline or gear
When one-shot forming, processing mold is tooth extrusion die, and lower mould is processed and be put into blank to be processed axle feature manhole
In lower mould, lower mould plays position-limiting action, and the tooth extrusion die of mold does downwards extruding fortune under the control of PLC control system
Dynamic, the spraying machine shaft-like work of spline to be processed or gear extrudes spline or gear in the extrusion die of mold.
Optionally, upper press section is provided with spacing guide post A, and the lower end of spacing guide post A is provided with blind hole helical pitch pipe, blind hole
The bottom of helical pitch pipe is provided with damping spring or shock absorbing rubber pad, and squeeze station is provided with the blind hole helical pitch with the spacing guide post A
The top of the spacing guide post B that pipe matches, spacing guide post B is provided with chamfering or fillet, and spacing guide post B is located at spacing guiding
The underface of bar A.
Optionally, mold is connected with seaming chuck using magnetic, and seaming chuck is provided with magnetic matrix support base, upper mould
Tool is placed on magnetic matrix support base groove, is fixed by magnetic-adsorption.
Optionally, lower mould is connected with squeeze station using magnetic, and squeeze station is provided with magnetic matrix support base, lower mould
Tool is placed on magnetic matrix support base groove, is fixed by magnetic-adsorption.
Optionally, mold is fixed with bolts with seaming chuck.
Optionally, lower mould is fixed with bolts with squeeze station.
A kind of processing technology of spraying arbor, it is characterised in that comprise the steps：
Step 1, gets the raw materials ready：According to the size and the weight of calculating spraying arbor of processed spraying machine axle, diameter is selected in spray
The conduct material to be processed of the +/- 20% scope round bar steel of the diameter of mist arbor most thick portion point, further according to weight, density and
Diameter calculates the length of required blank, and cutting round bar obtains blank, finally checks the weight of blank, the weight of gained blank
It is bigger than final products weight by 5%～20%；Preferred round bar steel are 20CrMnTi round steel.
Step 2, phosphorus saponification process：Blank is carried out into phosphorus saponification process；Phosphatization be by the metal of clean surface be put into containing
Processed in phosphatic dilute acid solutions；Saponification is that the metal of clean surface is put into sodium stearate solution to soak one section
Time, make metal surface adsorb saponification layer securely and do lubricant.After by blank phosphorus saponification process, blank surface can be caused
Soften, while playing lubrication, facilitate the follow-up demoulding.
Step 3, an extrusion molding：By the blank after phosphorus saponification process be put into spraying arbor cold extrusion press with spraying
Under the light face axle of arbor feature in mould, seaming chuck drives light face axle mold to move downward and squeezes out with axle appearance and size spy
The semi-finished product axle levied, seaming chuck is lifted, and semi-finished product axle is squeezed mould under exiting surface axle, the spline on correspondence spraying arbor by knockout pin
Or the diameter of gear parts keeps identical with gear compound graduation circular diameter, remainder leaves the allowance of 1mm；
Step 4, secondary extrusion shaping：By step 3 gained semi-finished product axle be put into spraying arbor cold extrusion press with gear
In the lower support mode of tooth extruding of feature, seaming chuck drives tooth extruding mold to move downward and squeezes out spline or gear position is squeezed
Spline or gear structure feature are extruded, the axle for processing extrusion tooth is extruded lower support mode by knockout pin；
Step 5, finishing：The semi-finished product axle with spline or gear obtained by step 4 is carried out further with lathe
Finishing, major diameter axle is left to step 3 processing and is removed with the chamfering of small diameter shaft, forms positioning shaft shoulder, removes axle outer surface
Layer of metal, treat subsequent heat treatment.
Step 6, heat treatment：The axle that first step 5 is obtained carries out carbo-nitriding heat treatment, locates in the salt bath of carbon containing and nitrogen
900～1000 DEG C of temperature of reason, temperature retention time 1～3 hour；Next Quenching Treatment at a temperature of 800～850 DEG C, finally 180
Temper at a temperature of～200 degrees Celsius.Up to HRC58--63, other surfaces (can quench the hardness of carburized surface after heat treatment
Saturating place's core) hardness is up to HRC35--45.
Step 7, cylindrical grinding：The working face of the axle after carbo-nitriding is processed ground smooth on sander, makes rough surface
Degree reaches Ra0.8.
The beneficial effect brought of technical scheme that the present invention is provided is：
1. the cold extrusion press moving component is few, and PLC control program is simple, when using, special set of molds is respectively mounted
On upper press section and squeeze station, the blank of spraying arbor to be processed is being put into mould, is being squeezed in PLC control system control
Splenium is moved downward, the blank of the spraying arbor on squeeze station, needed for being deformed under the squeezing action of mold and lower mould
The shape and structure feature wanted, after the completion of extruding, upper press section is lifted, and it is de- that PLC control system drives the hydraulic cylinder in demoulding portion to drive
Tringle is moved upwards.The bottom of the lower mould in the cold extrusion press of the present invention is provided with through hole, is additionally provided with knockout pin, and knockout pin can
With through the through hole of lower mold bottom.After the completion of workpiece extruding, typically no appropriate drafting angle is difficult rapidly to squeeze
Pressure workpiece takes out, and arranges the knockout pin of Driven by Hydraulic Cylinder, the workpiece that even also rapidly can be completed extruding without drafting angle
Extract.The operation of one part is machined, and removes the blank of the next spraying arbor of part exchanging.Whole process is less than
10s, substantially increases working (machining) efficiency.And the skills involved in the labour requirement to skilled worker is low, and skilled worker only needs to pick and place
Part, reduces recruitment cost.
2. mold has the axle extrusion die external member of the spatial model of spraying arbor feature with lower mould, by arbor of spraying
The maximum position of diameter is interval with the boundary of lower mould as mold, the demoulding after conveniently machining.Plus man-hour is by blank
In being put into lower mould, the extruded rod of mold does downwards compressional movement under the control of PLC control system, and blank is in upper/lower die
Extruding under deformation fill up mold and the spatial model of lower mould, blank has just been processed into the spraying machine of mold and lower mould
The spraying arbor semi-finished product of axle feature, simple to operate, high in machining efficiency a, extrusion molding.
3. add work gear or spline once to extrude just plastic, high in machining efficiency, homogeneity of product using tooth extrusion die
It is good.
4. spacing guide post A and spacing guide post B is set, and press section and squeeze station are adding man-hour because of workpiece in prevention
Crush resistance causes squeeze station to shift, and the top of spacing guide post B is provided with chamfering or fillet, can guide spacing guiding
In pipe B insertion blind hole helical pitch pipes.In addition the bottom of the blind hole helical pitch pipe of spacing guide post A is provided with damping spring or shock absorbing rubber
Pad, it is possible to reduce upper press section and squeeze station impact the vibration of moment, protect process equipment, improve process equipment service life.
5. the groove of magnetic matrix support base can prevent mould from breakking away under big compression shock.
6. using the processing technology of the present invention, the technological process of processing can be shortened, improve working (machining) efficiency, be reduced
The waste of raw material metal, reduces the otherness that Product processing is caused, improve product quality.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of typical spraying machine axle construction schematic diagram in prior art.
Fig. 2 is a kind of cold extrusion press structural representation of processing spraying arbor of the present invention.
Fig. 3 is the structural representation of spacing guide post A of the invention and spacing guide post B.
Fig. 4 is that the assembling structure of mould and hydraulic cylinder and knockout pin under light face axle mold of the present invention, light face axle is illustrated
Figure.
Fig. 5 is the structural representation that tooth of the present invention extrudes mold.
Fig. 6 is the structural representation of tooth extruding mold of the present invention and the lower support mode of tooth extruding and knockout pin.
In figure：Upper press section 1, seaming chuck 11, mold 12, tooth extruding mold 121, light face axle mold 122, extruding
Platform 2, the lower support mode 211 of lower mould 21, tooth extruding, mould 212 under the axle of light face, demoulding portion 3, hydraulic cylinder 31, knockout pin 32, spray
Mist arbor 4, guide support column 5, spacing guide post B 6, spacing guide post A 7, blind hole helical pitch pipe 71, shock absorbing rubber pad 72.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is clearly and completely retouched
State.Obviously, described embodiment a part of embodiment only of the invention, rather than the embodiment of whole.Based on this
Bright embodiment, the every other enforcement that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
As shown in Figures 2 and 3, a kind of cold extrusion press of processing spraying arbor, including upper press section 1, the squeeze station 2, demoulding
Portion 3, PLC control system, hydraulic system, guide support column 5, upper press section 1 is supported by guide support column 5, and upper press section 1 is in liquid
Compressional movement is done along guide support column 5 under the driving of pressure system, PLC control system controls the work of hydraulic system, its feature
It is：Upper press section 1 includes seaming chuck 11 and mold 12, and mold 12, using being removably connected, is extruded with seaming chuck 11
Platform 2 is provided with removably lower mould 21, and the bottom of described lower mould 21 is provided with through hole；Demoulding portion 3 is provided with the He of hydraulic cylinder 31
The knockout pin that hydraulic cylinder 31 drives, knockout pin is located at the underface of the through hole of lower mould 21 and may pass through through hole.
The cold extrusion press moving component is few, and PLC control program is simple, when using, special set of molds is separately mounted to
On upper press section 1 and squeeze station 2, the blank of spraying arbor to be processed is being put into mould, is being squeezed in PLC control system control
Splenium 1 is moved downward, the blank of the spraying arbor on squeeze station 2, is deformed under the squeezing action of mold 12 and lower mould 21
Into required shape and structure feature, after the completion of extruding, upper press section 1 is lifted, and PLC control system drives the hydraulic pressure in demoulding portion 3
Cylinder 31 drives knockout pin to move upwards.The bottom of the lower mould 21 in the cold extrusion press of the present invention is provided with through hole, is additionally provided with de-
Tringle, knockout pin can pass through the through hole of the bottom of lower mould 21.After the completion of workpiece extruding, typically no appropriate drafting angle
It is difficult to rapidly take out extruding workpiece, the knockout pin that hydraulic cylinder 31 drives is set, even also can be rapid without drafting angle
The workpiece that extruding is completed is extracted.The operation of one part is machined, and removes the blank of the next spraying arbor of part exchanging.
Whole process is less than 10s, substantially increases working (machining) efficiency.And low, technology is required to the skills involved in the labour of skilled worker
Workman only needs to pick and place part, reduces recruitment cost.
Optionally, mold 12 and the axle extruding that lower mould 21 is the spatial model with spraying machine shape shaft size characteristic
Mould external member, the maximum position of spraying machine shaft diameter is the boundary interval of mold 12 and lower mould 21, mold 12 and lower mould
The spatial model of tool 21 is in cylinder and from outside to inside diameter gradually successively decreases in notch cuttype.
Mold 12 has the axle extrusion die external member of the spatial model of spraying arbor feature with lower mould 21, by spraying machine
The maximum position of shaft diameter is interval with the boundary of lower mould 21 as mold 12, the demoulding after conveniently machining.Plus man-hour
Blank is put into lower mould 21, the extruded rod of mold 12 does downwards compressional movement, blank under the control of PLC control system
The deformation under the extruding of upper/lower die 21 fills up mold 12 with the spatial model of lower mould 21, and blank has just been processed into mold
12 with lower mould 21 spraying arbor feature spraying arbor semi-finished product, simple to operate, high in machining efficiency a, extrusion molding.
Optionally, as shown in Figure 4, Figure 5 and Figure 6, mold 12 has spline or gear feature including profile inner space
Tooth extruding mold 121 and light face axle mold 122, lower mould 21 includes under tooth extruding lower support mode 211 and light face axle
Mould 212, the spatial form in described tooth extruding mold 121 presses the spline or gear shape size design of spraying arbor,
Described tooth extruding mold 121 is supported the use with the lower support mode 211 of described tooth extruding；Light face axle mold 122 and light
Spatial form under the axle of face in mould 212 by spraying arbor size shape design, mould under light face axle mold 122 and light face axle
Tool 212 is supported the use and the splines on the correspondence spraying arbor or gear parts mould under light face axle mold 122 and light face axle
212 retain gear compound graduation circular diameter thicknesses, and remaining corresponding part mould 212 under light face axle mold 122 and light face axle leaves
The allowance of 1mm.
Light face axle mold 122 in mold 12 is supported the use with mould 212 is corresponding under the axle of light face, blank is put into crowded
In press, tooth in mold 12 extruding mold 121 is corresponding with the lower support mode 211 of tooth extruding in lower mould 21 supporting to be made
With one-shot forming when processing spline or gear, processing mold 12 is tooth extrusion die, and lower mould 21 is to be processed axle characteristic circle
Shape through hole, processing is put into blank in lower mould 21,21 position-limiting actions of lower mould, and the tooth extrusion die of mold 12 is in PLC
Do the extruding of the spraying machine shaft-like work in mold 12 of compressional movement, spline to be processed or gear under the control of control system downwards
Mould, extrusion spline or gear.Work gear or spline is added once to extrude using tooth extrusion die just plastic, it is high in machining efficiency, produce
Product uniformity is good.
Optionally, upper press section 1 is provided with spacing guide post A 7, and the lower end of spacing guide post A 7 is provided with blind hole helical pitch pipe
71, the bottom of blind hole helical pitch pipe 71 is provided with damping spring or shock absorbing rubber pad 72, and squeeze station 2 is provided with and the spacing guide post
The top of the spacing guide post B 6 that the blind hole helical pitch pipe 71 of A 7 matches, spacing guide post B 6 is provided with chamfering or fillet, spacing
Guide post B 6 is located at the underface of spacing guide post A 7.
Spacing guide post A 7 and spacing guide post B 6 is set, and press section 1 and squeeze station 2 are adding man-hour because work in prevention
The crush resistance of part causes squeeze station 2 to shift, and the top of spacing guide post B 6 is provided with chamfering or fillet, can guide
In spacing guide pipe B insertion blind hole helical pitches pipe 71.In addition the bottom of the blind hole helical pitch pipe 71 of spacing guide post A 7 is provided with damping bullet
Spring or shock absorbing rubber pad 72, it is possible to reduce upper press section 1 and squeeze station 2 impact the vibration of moment, protect process equipment, improve and add
Construction equipment service life.
Optionally, mold 12 is connected with seaming chuck 11 using magnetic, and seaming chuck 11 is provided with the support of magnetic matrix
Seat, mold 12 is placed on magnetic matrix support base groove, is fixed by magnetic-adsorption.
Optionally, lower mould 21 is connected with squeeze station 2 using magnetic, and squeeze station 2 is provided with magnetic matrix support base,
Lower mould 21 is placed on magnetic matrix support base groove, is fixed by magnetic-adsorption.
Can prevent mould from breakking away under big compression shock on magnetic matrix support base groove.
Optionally, mold 12 is fixed with bolts with seaming chuck 11.
Optionally, lower mould 21 is fixed with bolts with squeeze station 2.
A kind of processing technology of spraying arbor, it is characterised in that comprise the steps：
Step 1, gets the raw materials ready：According to the size and the weight of calculating spraying arbor of processed spraying machine axle, diameter is selected in spray
The conduct material to be processed of the +/- 20% scope round bar steel of the diameter of mist arbor most thick portion point, further according to weight, density and
Diameter calculates the length of required blank, and cutting round bar obtains blank, finally checks the weight of blank, the weight of gained blank
It is bigger than final products weight by 5%～20%；Preferred round bar steel are 20CrMnTi round steel.
Step 2, phosphorus saponification process：Blank is carried out into phosphorus saponification process；Phosphatization be by the metal of clean surface be put into containing
Processed in phosphatic dilute acid solutions；Saponification is that the metal of clean surface is put into sodium stearate solution to soak one section
Time, make metal surface adsorb saponification layer securely and do lubricant.After by blank phosphorus saponification process, blank surface can be caused
Soften, while playing lubrication, facilitate the follow-up demoulding.
Step 3, an extrusion molding：By the blank after phosphorus saponification process be put into spraying arbor cold extrusion press with spraying
Under the light face axle of arbor feature in mould 212, seaming chuck 11 drives light face axle mold 122 to move downward and squeezes out outside with axle
The semi-finished product axle of shape size characteristic, seaming chuck 11 is lifted, and semi-finished product axle is squeezed mould 212 under exiting surface axle, correspondence spray by knockout pin
The diameter of spline or gear parts on mist arbor keeps identical with gear compound graduation circular diameter, and remainder leaves the processing of 1mm
Surplus；
Step 4, secondary extrusion shaping：By step 3 gained semi-finished product axle be put into spraying arbor cold extrusion press with gear
In the lower support mode 211 of tooth extruding of feature, seaming chuck 11 drives tooth extruding mold 121 to move downward and squeezes out spline or tooth
Wheel position squeezes out spline or gear structure feature, and the axle for processing extrusion tooth is extruded lower support mode 211 by knockout pin；
Step 5, finishing：The semi-finished product axle with spline or gear obtained by step 4 is carried out further with lathe
Finishing, major diameter axle is left to step 3 processing and is removed with the chamfering of small diameter shaft, forms positioning shaft shoulder, removes axle outer surface
Layer of metal, treat subsequent heat treatment.
Step 6, heat treatment：The axle obtained to step 5 carries out carbo-nitriding heat treatment, processes in the salt bath of carbon containing and nitrogen
900～1000 DEG C of temperature, temperature retention time 1～3 hour；Secondly Quenching Treatment at a temperature of 800～850 DEG C, finally 180～
Temper at a temperature of 200 degrees Celsius., up to HRC58--63, other surfaces (can through hardening for the hardness of carburized surface after heat treatment
Place's core) hardness is up to HRC35--45.
Step 7, cylindrical grinding：The working face of the axle after carbo-nitriding is processed ground smooth on sander, makes rough surface
Degree reaches Ra0.8.
Using the processing technology, the technological process of processing is shortened, improve working (machining) efficiency, reduce raw material metal
Waste, reduce the otherness that Product processing is caused, improve product quality.
Claims (9)
1. a kind of cold extrusion press of processing spraying arbor, including upper press section (1), squeeze station (2), demoulding portion (3), PLC are controlled
System, hydraulic system, guide support column (5), upper press section (1) is supported by guide support column (5), and upper press section (1) is in hydraulic pressure
Compressional movement is done along guide support column (5) under the driving of system, PLC control system controls the work of hydraulic system, its feature
It is：Upper press section (1) includes seaming chuck (11) and mold (12), and mold (12) is with seaming chuck (11) using dismountable
Connection, squeeze station (2) is provided with removably lower mould (21), and the bottom of described lower mould (21) is provided with through hole；Demoulding portion
(3) knockout pin (32) that hydraulic cylinder (31) and hydraulic cylinder (31) drive is provided with, knockout pin (32) is positioned at lower mould (21) through hole
Underface simultaneously may pass through through hole.
2. it is according to claim 1 it is a kind of processing spraying arbor cold extrusion press, it is characterised in that：Mold (12) is with
Mould (21) be with spraying arbor (4) geomery feature spatial model axle extrusion die external member, spraying machine shaft diameter
Maximum position is that the boundary of mold (12) and lower mould (21) is interval, the spatial model of mold (12) and lower mould (21)
In cylinder and from outside to inside diameter gradually successively decreases in notch cuttype.
3. it is according to claim 1 it is a kind of processing spraying arbor cold extrusion press, it is characterised in that：Mold (12) includes
Profile inner space has tooth extruding mold (121) of spline or gear feature and light face axle mold (122), lower mould
(21) including mould (212) under the lower support mode (211) of tooth extruding and light face axle, in described tooth extruding mold (121)
Spatial form by spraying arbor (4) spline or gear shape size design, described tooth extruding mold (121) with it is described
The lower support mode (211) of tooth extruding is supported the use；Space shape under light face axle mold (122) and light face axle in mould (212)
Shape by spraying arbor (4) size shape design, under light face axle mold (122) and light face axle mould (212) support the use and
Spline or gear parts in correspondence spraying arbor (4) mould (212) under light face axle mold (122) and light face axle retains tooth
Wheel reference diameter thickness, remaining corresponding part mould (212) under light face axle mold (122) and light face axle leaves 1mm's
Allowance.
4. it is according to claim 1 it is a kind of processing spraying arbor cold extrusion press, it is characterised in that：On upper press section (1)
Spacing guide post A (7) is provided with, the lower end of spacing guide post A (7) is provided with blind hole helical pitch pipe (71), the bottom of blind hole helical pitch pipe (71)
Portion is provided with damping spring or shock absorbing rubber pad (72), and squeeze station (2) is provided with the blind hole helical pitch with the spacing guide post A (7)
The spacing guide post B (6) that pipe (71) matches, the top of spacing guide post B (6) is provided with chamfering or fillet, spacing guide post B
(6) positioned at the underface of spacing guide post A (7).
5. it is according to claim 1 it is a kind of processing spraying arbor cold extrusion press, it is characterised in that：Mold (12) with it is upper
Pressure head (11) is connected using magnetic, and seaming chuck (11) is provided with magnetic matrix support base, and it is recessed that mold (12) is placed on magnetic
On type support base groove, fixed by magnetic-adsorption.
6. it is according to claim 1 it is a kind of processing spraying arbor cold extrusion press, it is characterised in that：Lower mould (21) with squeeze
Present a theatrical performance as the last item on a programme (2) be connected using magnetic, squeeze station (2) is provided with magnetic matrix support base, and lower mould (21) is placed on magnetic matrix
On support base groove, fixed by magnetic-adsorption.
7. it is according to claim 1 it is a kind of processing spraying arbor cold extrusion press, it is characterised in that：Mold (12) with it is upper
Pressure head (11) is fixed with bolts.
8. it is according to claim 1 it is a kind of processing spraying arbor cold extrusion press, it is characterised in that：Lower mould (21) with squeeze
Present a theatrical performance as the last item on a programme (2) be fixed with bolts.
9. it is a kind of spraying arbor processing technology, it is characterised in that comprise the steps：
Step 1, gets the raw materials ready：According to the size and the weight of calculating spraying arbor (4) of processed spraying machine axle (4), diameter is selected to exist
The conduct material to be processed of the +/- 20% scope round bar steel of the diameter of spraying arbor (4) most thick portion point, further according to weight,
Density and diameter calculate the length of required blank, and cutting round bar obtains blank, finally checks the weight of blank, gained blank
Weight it is bigger than final products weight by 5%～20%；Step 2, phosphorus saponification process：Blank is carried out into phosphorus saponification process；
Step 3, an extrusion molding：By the blank after phosphorus saponification process be put into spraying arbor cold extrusion press with spraying arbor
(4) under the light face axle of feature in mould (212), seaming chuck (11) drives light face axle mold (122) to move downward and squeezes out band
There is the semi-finished product axle of axle appearance and size feature, seaming chuck (11) is lifted, semi-finished product axle is squeezed mould under exiting surface axle by knockout pin (32)
Tool (212), the diameter of spline or gear parts in correspondence spraying arbor (4) keeps identical with gear compound graduation circular diameter, remaining
Leave the allowance of 1mm in part；
Step 4, secondary extrusion shaping：By step 3 gained semi-finished product axle be put into spraying arbor cold extrusion press with gear feature
The lower support mode (211) of tooth extruding in, seaming chuck (11) drive tooth extruding mold (121) move downward squeeze out spline or
Gear position squeezes out spline or gear structure feature, and the axle for processing extrusion tooth is extruded lower support mode by knockout pin (32)
(211)；
Step 5, finishing：Further finishing is carried out to the semi-finished product axle with spline or gear obtained by step 4 with lathe
Work, major diameter axle is left to step 3 processing and is removed with the chamfering of small diameter shaft, forms positioning shaft shoulder, removes the one of axle outer surface
Layer metal, treats subsequent heat treatment；
Step 6, heat treatment：The axle obtained to step 5 carries out carbo-nitriding heat treatment, the treatment temperature in the salt bath of carbon containing and nitrogen
900～1000 DEG C, temperature retention time 1～3 hour；Next Quenching Treatment at a temperature of 800～850 DEG C, finally 180～200
Temper at a temperature of degree Celsius；
Step 7, cylindrical grinding：The working face of the axle after carbo-nitriding is processed ground smooth on sander, reaches surface roughness
To Ra0.8.
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| CN107983791A (en) * | 2017-12-26 | 2018-05-04 | 重庆江东机械有限责任公司 | Mechanical stop limiter |
| CN108057992A (en) * | 2017-12-06 | 2018-05-22 | 浙江浙研冷挤压有限公司 | A kind of preparation method of new-energy automobile drive motor shaft |
| CN108526237A (en) * | 2018-06-12 | 2018-09-14 | 彪马集团有限公司 | A kind of processing unit (plant) of the red punching of vertical hydraulic |
| CN109773432A (en) * | 2019-02-27 | 2019-05-21 | 常州金球轴承厂 | Multistation cold extrusion tooth shaft forming technology |
| CN113696017A (en) * | 2021-10-27 | 2021-11-26 | 南通京鼎机械科技有限公司 | Quick replacement formula gear manufacturing installation for cold extrusion |
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Effective date of registration: 20230403 Address after: Yongquan Industrial Park, Nanzhang Economic Development Zone, Xiangyang City, Hubei Province Patentee after: Hubei Mingtai electromechanical Co.,Ltd. Address before: 441500 10 Yongquan Industrial Park, Nanzhang County, Xiangfan City, Hubei Province Patentee before: HUBEI MINGTAI AGRICULTURAL MACHINERY CO.,LTD. |