CN104588999B - Method for machining universal ball pedestal - Google Patents
Method for machining universal ball pedestal Download PDFInfo
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- CN104588999B CN104588999B CN201510037967.1A CN201510037967A CN104588999B CN 104588999 B CN104588999 B CN 104588999B CN 201510037967 A CN201510037967 A CN 201510037967A CN 104588999 B CN104588999 B CN 104588999B
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- base
- head
- universal caster
- bar portion
- hardness
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- 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
Abstract
The invention provides a method for machining a universal ball pedestal and belongs to the technical field of machinery. The problem that the rod part of the current universal ball pedestal is easy to break is solved. The method for machining the universal ball pedestal provided by the invention comprises the following steps of A, turning a blank; B, machining a caliber groove; C, thermally treating the whole pedestal; D, performing high-frequency quenching on the head of the pedestal; E, sanding. The method for machining the universal ball pedestal provided by the invention has the advantage that the hardness of the head of the pedestal and the hardness of the rod part of the pedestal are different.
Description
Technical field
The invention belongs to field of mechanical technique, it is related to a kind of Universal caster, the processing side of base particularly in Universal caster
Method.
Background technology
Universal caster can carry gently, weight body in all directions move horizontally it is adaptable to machinery, five metals, chemical industry,
The industries such as food, supermarket, airport, warehouse.It is widely used in logistics, the mechanically supported of transmission industry, assembly line, conveying
The conveying equipments such as machine, driver, and object turning, joining part.
Universal caster includes ball, base, cover plate and pellet layer, and base end has spherical recessed bore groove, circle
Pearl is located at bore groove and above-mentioned pellet layer is located between ball and base, and cover plate is located at the outside of ball, is provided with cover plate
The circular hole stretching out for ball part.Connect for convenience, generally having one on base is in shaft-like bar portion, certainly, bar portion
Outside there is screw thread.
This Universal caster is used for the carrying of weight or uses as supporting leg.During use, need to be connected to Universal caster
When in other equipment or device, Universal caster can easily be made to be connected with other equipment by the screw connection structure of bar portion
Connect.As shown in Fig. 2 bar portion is threadedly attached on substrate, when Universal caster is used for the carrying of weight, typically using a large amount of
The uniform array of Universal caster be arranged in substrate enterprising exercise use.
But, because bar portion and base are integral type structure in existing Universal caster, bar portion and base have identical
High rigidity.When using, the higher bar portion of hardness leads to its damage because of its rigid reason.It is additionally, since bar portion hardness ratio
Higher, bar portion is also meeting stress to Universal caster in use, (higher hard after the threaded portion stress of bar portion is damaged
The bar portion of degree leads to it very crisp, once stress will be easily broken) also result in and be connected not between Universal caster and other equipment
Firm problem.
Content of the invention
The purpose of the present invention is the problems referred to above existing for prior art, provides one kind can make base bar portion and base head
The processing method of the different Universal caster base of portion's hardness.
The purpose of the present invention can be realized by following technical proposal: a kind of processing method of Universal caster base, universal
Ball base includes cylindrical base head and in shaft-like base bar portion, has screw thread outside above-mentioned base bar portion, on
State base head outer end and there is spherical recessed bore groove, above-mentioned base head is inner to be connected and base with base bar portion the inner
Head and base bar portion are integral type structure, and the method comprises the following steps:
A, Vehicle Processing blank: blocked or obtain by metal forging the bar hair of preseting length on raw material bar
Base, by bar blank clamping on lathe after, base head is processed on bar blank by method for turning, obtains hair
Base semi-finished product, blank semi-finished product turn around clamping after lathe, then process in shaft-like base bar portion by method for turning,
Finally adopt rolled thread or thread rolling processing method that external threads are processed on base bar portion；
B, processing bore groove: spherical recessed bore is processed in the outer end of base head by method for turning
Groove；
C, base bulk heat treatmet: heat treatment is integrally carried out to base, makes the overall hardness of base be hrc20 39.5；
D, base head high-frequency quenching: individually high-frequency quenching is carried out to base head, make base head hardness be hrc40
60；
E, ramming: ramming process is integrally carried out to base.
The processing method of this Universal caster base first adopts turnery processing, obtains base blank.Then, then using turning add
Work method processes bore groove in base head outer end, and certainly, the screw thread of bar portion is also to be processed by other processing methods
's.
Above-mentioned base is carried out in two steps process, and the hardness that first base is integrally carried out with heat treatment makes base overall is
Hrc20 39.5, then individually base head is carried out with high-frequency quenching again making base head hardness is hrc40 60.
Finally ramming is integrally carried out to base, to remove the impurity such as the oxide skin of base integral surface.
In the processing method of above-mentioned Universal caster base, in described step a, the edge of base blank is fallen
Angle or fillet are processed.
After chamfering or fillet process, base assembling can be easy to.Certainly, also can guarantee that the surface quality of part.
In the processing method of above-mentioned Universal caster base, in described step a, first pass through method for turning boil on the nape opposite the mouth
Footpath groove carries out rough turn, then carries out smart car to bore groove again.
Point twice turning operation can improve the precision of bore groove after turnery processing.
In the processing method of above-mentioned Universal caster base, in described step c, base is integrally quenched, made bottom
The overall hardness of seat is hrc55 65, is tempered, the hardness making base overall is after described base is integrally quenched again
hrc20—39.5.
Carry out being tempered the hardness stabilization that base can be made overall after quenching again is maintained at hrc20 39.5.
In the processing method of above-mentioned Universal caster base, first base head is inserted with work in described step c
Property carburizing medium in, be heated to 900 950 degrees Celsius of single phase austenite area, after enough 24 hours of insulation, make carburizing medium
In the active atoms of carbon that decomposites penetrate into base top layer, thus obtaining top layer high-carbon, inside base head, still keep original composition.
Obviously, susceptor surface can be made after above-mentioned Carburization Treatment to have higher hardness.
In the processing method of above-mentioned Universal caster base, described activated carburizing medium is methane.According to actual feelings
Condition can also adopt ethane or kerosene or ethanol etc..
In the processing method of above-mentioned Universal caster base, high-frequency quenching is carried out to the base head after carburizing, makes
Base head hardness is hrc70 85, and described base head is tempered to it after carrying out high-frequency quenching, makes base head hard
Spend for hrc40 60.
Can be made by heat treatment and this two procedures of high-frequency quenching base head hardness stabilization be maintained at hrc40
60.
In the processing method of above-mentioned Universal caster base, pass through galvanized method after described step e in base appearance
Face is uniformly zinc-plated.Certainly, Common platings can also be carried out according to practical situation to susceptor surface or plate trivalent coloured silk zinc.
The processing method of Universal caster base, Universal caster base includes cylindrical base head and in shaft-like bottom
Seat bar portion, has screw thread, above-mentioned base head outer end has spherical recessed bore groove, above-mentioned bottom outside above-mentioned base bar portion
Seat head is inner and base bar portion the inner is connected and base head is integral type structure with base bar portion, and the method includes following step
Rapid:
A, Vehicle Processing blank: blocked or obtain by metal forging the bar hair of preseting length on raw material bar
Base, by bar blank clamping on lathe after, base head is processed on bar blank by method for turning, obtains hair
Base semi-finished product, blank semi-finished product turn around clamping after lathe, then process in shaft-like base bar portion by method for turning,
Finally adopt rolled thread or thread rolling processing method that external threads are processed on base bar portion；
B, processing bore groove: spherical recessed bore is processed in the outer end of base head by method for turning
Groove；
C, base bulk heat treatmet: heat treatment is integrally carried out to base, makes the overall hardness of base be hrc20 39.5；
D, base head heat treatment: individually heat treatment is carried out to base head, make base head hardness be hrc40 60；
E, ramming: ramming process is integrally carried out to base.
The processing method of this Universal caster base first adopts turnery processing, obtains base blank.Then, then using turning add
Work method processes bore groove in base head outer end, and certainly, the screw thread of base bar portion is also to be carried out by other processing methods
Processing.
Above-mentioned base is carried out in two steps process, and the hardness that first base is integrally carried out with heat treatment makes base overall is
Hrc20 39.5, then base head is carried out with heat treatment again making base head hardness is hrc40 60.
Finally ramming is integrally carried out to base, to remove the impurity such as the oxide skin of base integral surface.
In the processing method of above-mentioned Universal caster base, in described step a, the edge of base blank is fallen
Angle or fillet are processed.
After chamfering or fillet process, base assembling can be easy to.Certainly, also can guarantee that the surface quality of part.
In the processing method of above-mentioned Universal caster base, in described step a, first pass through method for turning boil on the nape opposite the mouth
Footpath groove carries out rough turn, then carries out smart car to bore groove again.
Point twice turning operation can improve the precision of bore groove after turnery processing.
In the processing method of above-mentioned Universal caster base, in described step c, base is integrally quenched, made bottom
The overall hardness of seat is hrc55 65, is tempered, the hardness making base overall is after described base is integrally quenched again
hrc20—39.5.
Carry out being tempered the hardness stabilization that base can be made overall after quenching again is maintained at hrc20 39.5.
In the processing method of above-mentioned Universal caster base, first base head is inserted with work in described step c
Property carburizing medium in, be heated to 900 950 degrees Celsius of single phase austenite area, after enough 24 hours of insulation, make carburizing medium
In the active atoms of carbon that decomposites penetrate into base top layer, thus obtaining top layer high-carbon, inside base head, still keep original composition.
Obviously, susceptor surface can be made after above-mentioned Carburization Treatment to have higher hardness.
In the processing method of above-mentioned Universal caster base, described activated carburizing medium is methane.According to actual feelings
Condition can also adopt ethane or kerosene or ethanol etc..
In the processing method of above-mentioned Universal caster base, the base head after carburizing is quenched, makes base
Head hardness is hrc70 85, and described base head is tempered to it after being quenched, and makes the base head hardness be
hrc40—60.
By heat treatment and quench this two procedures can make head hardness stabilization be maintained at hrc40 60.
In the processing method of above-mentioned Universal caster base, pass through galvanized method after described step e in base appearance
Face is uniformly zinc-plated.Certainly, Common platings can also be carried out according to practical situation to susceptor surface or plate trivalent coloured silk zinc.
Compared with prior art, the processing method of this Universal caster base has the advantage that
1st, due to different process are carried out respectively to base entirety and base head, therefore, base head and base bar portion
Hardness number be different.More precisely base bar portion has certain toughness, therefore.When base bar portion and other equipment are entered
When row connects, can not only smoothly connect, and the base bar portion with certain toughness can also keep being connected firmly.
2nd, base blank after to turnery processing for this processing method first carries out bulk heat treatmet, more individually to base head
Carry out this two procedures of high-frequency quenching, finally the base after processing integrally is carried out by ramming, zinc-plated obtains final product base.Whole processing
Method is easy and easy to implement, has very high practical value.
3rd, base blank after to turnery processing for this processing method first carries out bulk heat treatmet, more individually head is carried out
This two procedures of heat treatment, finally integrally carry out ramming, zinc-plated obtain final product base to the base after processing.Whole processing method letter
Just and easy to implement, there is very high practical value.
Brief description
Fig. 1 is the broken section structural representation of Universal caster base.
Fig. 2 is that Universal caster is connected to the cross section structure diagram on substrate.
In figure, 1, base；1a, base head；1a1, bore groove；1b, base bar portion.
Specific embodiment
Embodiment one
As shown in figure 1, Universal caster base 1 includes the base head 1a being connected as a single entity and base bar portion 1b, base head
1a is cylindrical, and base bar portion 1b is in shaft-like, has screw thread, base head 1a outer end has spherical recessed outside base bar portion 1b
The bore groove 1a1 entering.Base head 1a is inner to be connected as a single entity with base bar portion 1b the inner.
The processing method of this Universal caster base comprises the following steps:
A, Vehicle Processing blank: blocked or obtain by metal forging the bar hair of preseting length on raw material bar
Base, by bar blank clamping on lathe after, base head 1a is processed on bar blank by method for turning, obtains
Blank semi-finished product.
Blank semi-finished product turn around clamping after lathe, then are processed in shaft-like base bar portion by method for turning
1b.In the present embodiment, Tutrning Process adds one extra operation, that is, to base head 1a and base bar portion 1b
Edge carries out chamfered.Certainly, according to practical situation it is also possible to enter to the edge of base head 1a and base bar portion 1b
Row fillet is processed.
Finally, external threads are processed in base bar portion 1b using rolled thread or thread rolling processing method.
B, processing bore groove: using method for turning, the outer end of base head 1a is carried out rough turn, obtain spherical recessed
The bore groove 1a1 entering.Then, then to bore groove 1a1 carry out one smart car operation.
C, base bulk heat treatmet: first quenched overall for base 1, the hardness making base 1 entirety is hrc55.
Then, it is tempered overall to the base 1 after quenched, the hardness making base 1 entirety is hrc20.
D, base head 1a high-frequency quenching: first insert base head 1a in active carburizing medium, be heated to 900 and take the photograph
The single phase austenite area of family name's degree, after being incubated enough 2 hours, makes the active atoms of carbon decompositing in carburizing medium penetrate into base table
Layer, thus obtaining top layer high-carbon, still keeps original composition inside base head 1a.In the present embodiment, activated carburizing medium is coal
Oil.
Then, high-frequency quenching is carried out to the base head 1 after carburizing, make base head 1a hardness be hrc70.
Finally, the base head 1a after high-frequency quenching is tempered, makes base head 1a hardness be hrc40
E, ramming: processed by ramming and the base 1 after processing is polished.Base 1 after polishing adopts plating mode
Electroplate one layer of uniform zinc in chassis outer side, according to practical situation it is also possible to uniformly electroplate last layer trivalent coloured silk zinc.
Reduce the hardness of base bar portion 1b by above-mentioned technique, when this Universal caster uses, base bar portion 1b spiral shell
Stricture of vagina is connected on substrate or on weight, can effectively prevent base bar portion 1b from rupturing.
Embodiment two
The processing method of this Universal caster base comprises the following steps:
A, Vehicle Processing blank: blocked or obtain by metal forging the bar hair of preseting length on raw material bar
Base, by bar blank clamping on lathe after, base head 1a is processed on bar blank by method for turning, obtains
Blank semi-finished product.
Blank semi-finished product turn around clamping after lathe, then are processed in shaft-like base bar portion by method for turning
1b.In the present embodiment, Tutrning Process adds one extra operation, that is, to base head 1a and base bar portion 1b
Edge carries out chamfered.Certainly, according to practical situation it is also possible to enter to the edge of base head 1a and base bar portion 1b
Row fillet is processed.
Finally, external threads are processed in base bar portion using rolled thread or thread rolling processing method.
B, processing bore groove: using method for turning, the outer end of base head 1a is carried out rough turn, obtain spherical recessed
The bore groove 1a1 entering.Then, then to bore groove 1a1 carry out one smart car operation.
C, base bulk heat treatmet: first quenched overall for base 1, the hardness making base 1 entirety is hrc65.
Then, it is tempered overall to the base 1 after quenched, the hardness making base 1 entirety is hrc39.5.
D, base head 1a high-frequency quenching: first insert base head 1a in active carburizing medium, be heated to 950 and take the photograph
The single phase austenite area of family name's degree, after being incubated enough 4 hours, makes the active atoms of carbon decompositing in carburizing medium penetrate into base table
Layer, thus obtaining top layer high-carbon, chassis interior still keeps original composition.In the present embodiment, activated carburizing medium is ethanol.
Then, high-frequency quenching is carried out to the base head 1a after carburizing, make base head 1a hardness be hrc8.
Finally, the base head 1a after high-frequency quenching is tempered, makes base head 1a hardness be hrc60.
E, polishing: processed by ramming and the base 1 after processing is polished.Base 1 after polishing adopts plating mode
Electroplate one layer of uniform zinc in chassis outer side, according to practical situation it is also possible to uniformly electroplate last layer trivalent coloured silk zinc.
Embodiment three
The processing method of this Universal caster base comprises the following steps:
A, Vehicle Processing blank: blocked or obtain by metal forging the bar hair of preseting length on raw material bar
Base, by bar blank clamping on lathe after, head 1a is processed on bar blank by method for turning, obtains blank
Semi-finished product.
Blank semi-finished product turn around clamping after lathe, then are processed in shaft-like base bar portion by method for turning
1b.In the present embodiment, Tutrning Process adds one extra operation, that is, to base head 1a and base bar portion 1b
Edge carries out chamfered.Certainly, according to practical situation it is also possible to enter to the edge of base head 1a and base bar portion 1b
Row fillet is processed.
Finally, external threads are processed in base bar portion 1b using rolled thread or thread rolling processing method.
B, processing bore groove: using method for turning, the outer end of base head is carried out rough turn, obtain spherical recessed
Bore groove 1a1.Then, then to bore groove 1a1 carry out one smart car operation.
C, base bulk heat treatmet: first quenched overall for base 1, the hardness making base 1 entirety is hrc60.
Then, it is tempered overall to the base 1 after quenched, the hardness making base 1 entirety is hrc30.
D, base head 1a high-frequency quenching: first insert the head 1a of base in active carburizing medium, be heated to 920
Degree Celsius single phase austenite area, after enough 3 hours of insulation, make the active atoms of carbon that decomposites in carburizing medium penetrate into base table
Layer, thus obtaining top layer high-carbon, chassis interior still keeps original composition.In the present embodiment, activated carburizing medium is methane.
Then, high-frequency quenching is carried out to the base head 1a after carburizing, make base head 1a hardness be hrc80.
Finally, temper is carried out to the base head 1a after high-frequency quenching, make base head 1a hardness be hrc50.
E, polishing: processed by ramming and the base 1 after processing is polished.Base 1 after polishing adopts plating mode
Electroplate one layer of uniform zinc in chassis outer side, according to practical situation it is also possible to uniformly electroplate last layer trivalent coloured silk zinc.
Example IV
As shown in figure 1, Universal caster base 1 includes the base head 1a being connected as a single entity and base bar portion 1b, base head
1a is cylindrical, and base bar portion 1b is in shaft-like, has screw thread, base head 1a outer end has spherical recessed outside base bar portion 1b
The bore groove 1a1 entering.Base head 1a is inner to be connected as a single entity with base bar portion 1b the inner.
The processing method of this Universal caster base 1 comprises the following steps:
A, Vehicle Processing blank: blocked or obtain by metal forging the bar hair of preseting length on raw material bar
Base, by bar blank clamping on lathe after, base head 1a is processed on bar blank by method for turning, obtains
Blank semi-finished product.
Blank semi-finished product turn around clamping after lathe, then are processed in shaft-like base bar portion by method for turning
1b.In the present embodiment, Tutrning Process adds one extra operation, that is, to base head 1a and base bar portion 1b
Edge carries out chamfered.Certainly, according to practical situation it is also possible to enter to the edge of base head 1a and base bar portion 1b
Row fillet is processed.
Finally, external threads are processed in base bar portion 1b using rolled thread or thread rolling processing method.
B, processing bore groove: using method for turning, the outer end of base head 1a is carried out rough turn, obtain spherical recessed
The bore groove 1a1 entering.Then, then to bore groove 1a1 carry out one smart car operation.
C, base bulk heat treatmet: first quenched overall for base 1, the hardness making base 1 entirety is hrc55.
Then, it is tempered overall to the base 1 after quenched, the hardness making base 1 entirety is hrc20.
D, base head 1a heat treatment: first insert base head 1a in active carburizing medium, be heated to 900 Celsius
The single phase austenite area of degree, after being incubated enough 2 hours, makes the active atoms of carbon decompositing in carburizing medium penetrate into base top layer,
Thus obtaining top layer high-carbon, inside base head 1a, still keep original composition.In the present embodiment, activated carburizing medium is kerosene.
Then, the base head 1 after carburizing is quenched, make base head 1a hardness be hrc70.
Finally, the base head 1a after quenching is tempered, makes base head 1a hardness be hrc40.
E, ramming: processed by ramming and the base 1 after processing is polished.Base 1 after polishing adopts plating mode
Electroplate one layer of uniform zinc in chassis outer side, according to practical situation it is also possible to uniformly electroplate last layer trivalent coloured silk zinc.
Reduce the hardness of base bar portion 1b by above-mentioned technique, when this Universal caster uses, base bar portion 1b spiral shell
Stricture of vagina is connected on substrate or on weight, can effectively prevent base bar portion 1b from rupturing.
Embodiment five
The processing method of this Universal caster base comprises the following steps:
A, Vehicle Processing blank: blocked or obtain by metal forging the bar hair of preseting length on raw material bar
Base, by bar blank clamping on lathe after, base head 1a is processed on bar blank by method for turning, obtains
Blank semi-finished product.
Blank semi-finished product turn around clamping after lathe, then are processed in shaft-like base bar portion by method for turning
1b.In the present embodiment, Tutrning Process adds one extra operation, that is, to base head 1a and base bar portion 1b
Edge carries out chamfered.Certainly, according to practical situation it is also possible to enter to the edge of base head 1a and base bar portion 1b
Row fillet is processed.
Finally, external threads are processed in bar portion using rolled thread or thread rolling processing method.
B, processing bore groove: using method for turning, the outer end of base head 1a is carried out rough turn, obtain spherical recessed
The bore groove 1a1 entering.Then, then to bore groove 1a1 carry out one smart car operation.
C, base bulk heat treatmet: first quenched overall for base 1, the hardness making base 1 entirety is hrc65.
Then, it is tempered overall to the base 1 after quenched, the hardness making base 1 entirety is hrc39.
D, base head 1a heat treatment: first insert base head 1a in active carburizing medium, be heated to 950 Celsius
The single phase austenite area of degree, after being incubated enough 4 hours, makes the active atoms of carbon decompositing in carburizing medium penetrate into base top layer,
Thus obtaining top layer high-carbon, chassis interior still keeps original composition.In the present embodiment, activated carburizing medium is ethanol.
Then, the base head 1a after carburizing is quenched, make base head 1a hardness be hrc85.
Finally, the base head 1a after quenching is tempered, makes base head 1a hardness be hrc60.
E, polishing: processed by ramming and the base 1 after processing is polished.Base 1 after polishing adopts plating mode
Electroplate one layer of uniform zinc in chassis outer side, according to practical situation it is also possible to uniformly electroplate last layer trivalent coloured silk zinc.
Embodiment six
The processing method of this Universal caster base comprises the following steps:
A, Vehicle Processing blank: blocked or obtain by metal forging the bar hair of preseting length on raw material bar
Base, by bar blank clamping on lathe after, base head 1a is processed on bar blank by method for turning, obtains
Blank semi-finished product.
Blank semi-finished product turn around clamping after lathe, then are processed in shaft-like base bar portion by method for turning
1b.In the present embodiment, Tutrning Process adds one extra operation, that is, to base head 1a and base bar portion 1b
Edge carries out chamfered.Certainly, according to practical situation it is also possible to enter to the edge of base head 1a and base bar portion 1b
Row fillet is processed.
Finally, external threads are processed in base bar portion 1b using rolled thread or thread rolling processing method.
B, processing bore groove: using method for turning, the outer end of head is carried out rough turn, obtain spherical recessed mouth
Footpath groove 1a1.Then, then to bore groove 1a1 carry out one smart car operation.
C, base bulk heat treatmet: first quenched overall for base 1, the hardness making base 1 entirety is hrc60.
Then, it is tempered overall to the base 1 after quenched, the hardness making base 1 entirety is hrc30.
D, base head 1a heat treatment: first insert base head 1a in active carburizing medium, be heated to 920 Celsius
The single phase austenite area of degree, after being incubated enough 3 hours, makes the active atoms of carbon decompositing in carburizing medium penetrate into base top layer,
Thus obtaining top layer high-carbon, chassis interior still keeps original composition.In the present embodiment, activated carburizing medium is methane.
Then, the base head 1a after carburizing is quenched, make base head 1a hardness be hrc80.
Finally, temper is carried out to the base head 1a after quenching, make base head 1a hardness be hrc50.
E, polishing: processed by ramming and the base 1 after processing is polished.Base 1 after polishing adopts plating mode
Electroplate one layer of uniform zinc in chassis outer side, according to practical situation it is also possible to uniformly electroplate last layer trivalent coloured silk zinc.
Claims (13)
1. the processing method of Universal caster base, Universal caster base (1) includes cylindrical base head (1a) and is in bar
The base bar portion (1b) of shape, has screw thread outside above-mentioned base bar portion (1b), and above-mentioned base head (1a) outer end has spherical
Recessed bore groove (1a1), above-mentioned base head (1a) is inner be connected with base bar portion (1b) the inner and base head (1a) with
Base bar portion (1b) is integral type structure, and the method comprises the following steps:
A, Vehicle Processing blank: blocked or obtained by metal forging the bar blank of preseting length on raw material bar, will
After bar blank clamping is on lathe, base head (1a) is processed on bar blank by method for turning, obtains hair
Base semi-finished product, blank semi-finished product turn around clamping after lathe, then are processed in shaft-like base bar portion by method for turning
(1b) rolled thread or thread rolling processing method, are finally adopted in base bar portion (1b) upper processing external threads；
B, processing bore groove: spherical recessed bore groove is processed in the outer end of base head (1a) by method for turning
(1a1)；
C, base bulk heat treatmet: integrally heat treatment is carried out to base (1), makes the overall hardness of ball base (1) be hrc20
39.5；
D, base head high-frequency quenching: individually high-frequency quenching is carried out to base head (1a), make base head (1a) hardness be
hrc40—60；
E, ramming: integrally ramming process is carried out to base (1).
2. the processing method of Universal caster base according to claim 1 is it is characterised in that the bottom of in described step a
The edge of seat (1) blank carries out chamfering or fillet is processed.
3. the processing method of Universal caster base according to claim 2 is it is characterised in that first lead in described step a
Cross method for turning and bore groove (1a1) is carried out rough turn, then again smart car is carried out to bore groove (1a1).
4. the processing method of the Universal caster base according to claim 1 or 2 or 3 is it is characterised in that described step c
Middle base (1) is integrally quenched, make the overall hardness of base (1) be hrc55 65, described base (1) overall through quenching
Fire is tempered after processing again, makes the overall hardness of base (1) be hrc20 39.5.
5. the processing method of the Universal caster base according to claim 1 or 2 or 3 is it is characterised in that described step d
The middle single phase austenite area first inserted base head (1a) in active carburizing medium, be heated to 900 950 degrees Celsius,
After being incubated 24 hours, the active atoms of carbon decompositing in carburizing medium is made to penetrate into base top layer, thus obtaining top layer high-carbon, bottom
Original composition is still kept inside seat head (1a).
6. the processing method of Universal caster base according to claim 5 is it is characterised in that to the base head after carburizing
(1a) carries out high-frequency quenching in portion, makes base head (1a) hardness be hrc70 85, described base head (1a) carries out high frequency and quenches
After fire, it is tempered, makes base head (1a) hardness be hrc40 60.
7. the processing method of the Universal caster base according to claim 1 or 2 or 3 is it is characterised in that described step e
Pass through galvanized method afterwards uniformly zinc-plated in base (1) outer surface.
8. the processing method of Universal caster base, Universal caster base (1) includes cylindrical base head (1a) and is in bar
The base bar portion (1b) of shape, has screw thread outside above-mentioned base bar portion (1b), and above-mentioned base head (1a) outer end has spherical
Recessed bore groove (1a1), above-mentioned base head (1a) is inner be connected with base bar portion (1b) the inner and base head (1a) with
Base bar portion (1b) is integral type structure, and the method comprises the following steps:
A, Vehicle Processing blank: blocked or obtained by metal forging the bar blank of preseting length on raw material bar, will
After bar blank clamping is on lathe, base head (1a) is processed on bar blank by method for turning, obtains hair
Base semi-finished product, blank semi-finished product turn around clamping after lathe, then are processed in shaft-like base bar portion by method for turning
(1b) rolled thread or thread rolling processing method, are finally adopted in base bar portion (1b) upper processing external threads；
B, processing bore groove: spherical recessed bore groove is processed in the outer end of base head (1a) by method for turning
(1a1)；
C, base bulk heat treatmet: integrally heat treatment is carried out to base (1), makes the overall hardness of ball base (1) be hrc20
39.5；
D, base head heat treatment: individually heat treatment is carried out to base head (1a), make base head (1a) hardness be hrc40
60；
E, ramming: integrally ramming process is carried out to base (1).
9. the processing method of Universal caster base according to claim 8 is it is characterised in that the bottom of in described step a
The edge of seat (1) blank carries out chamfering or fillet is processed.
10. the processing method of Universal caster base according to claim 9 is it is characterised in that first lead in described step a
Cross method for turning and bore groove (1a1) is carried out rough turn, then again smart car is carried out to bore groove (1a1).
The processing method of the Universal caster base described in 11. according to Claim 8 or 9 or 10 is it is characterised in that described step
In c, base (1) is integrally quenched, make the overall hardness of base (1) be hrc55 65, described base (1) entirety is through being quenched
Fire is tempered after processing again, makes the overall hardness of base (1) be hrc20 39.5.
The processing method of the Universal caster base described in 12. according to Claim 8 or 9 or 10 is it is characterised in that described step
First base head (1a) is inserted in active carburizing medium in d, is heated to 900 950 degrees Celsius of single phase austenite area,
After being incubated 24 hours, the active atoms of carbon decompositing in carburizing medium is made to penetrate into base top layer, thus obtaining top layer high-carbon, bottom
Original composition is still kept inside seat head (1a).
The processing method of 13. Universal caster bases according to claim 12 is it is characterised in that to the base after carburizing
Head (1a) carries out heat treatment, makes base head (1a) hardness be hrc70 85, described base head (1a) carries out heat treatment
Afterwards it is tempered, makes base head (1a) hardness be hrc40 60.
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| CN201510037967.1A CN104588999B (en) | 2015-01-26 | 2015-01-26 | Method for machining universal ball pedestal |
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| CN104588999B true CN104588999B (en) | 2017-02-01 |
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| CN109262212B (en) * | 2018-12-06 | 2020-10-13 | 中国航发哈尔滨轴承有限公司 | Method for machining rod end joint bearing of aircraft drag parachute |
| CN112894348B (en) * | 2021-01-19 | 2022-01-28 | 科捷智能科技股份有限公司 | Assembling and processing method for bilateral universal conveying balls |
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| CN103042358A (en) * | 2012-09-11 | 2013-04-17 | 昌利锻造有限公司 | Method for manufacturing universal joint for automobile |
| CN203472990U (en) * | 2013-09-29 | 2014-03-12 | 芜湖禾田汽车工业有限公司 | Automobile steering ball pin |
| CN203917543U (en) * | 2014-06-26 | 2014-11-05 | 浙江圣康工贸有限公司 | A kind of punch press universal adjustment compensation mechanism |
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|---|---|---|---|---|
| JP2011236976A (en) * | 2010-05-11 | 2011-11-24 | Ntn Corp | Constant velocity universal joint |
| JP6113459B2 (en) * | 2012-11-08 | 2017-04-12 | Ntn株式会社 | Fixed constant velocity universal joint |
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| CN2283581Y (en) * | 1996-11-14 | 1998-06-10 | 成渊机械工业有限公司 | Universal ball base for work transporting |
| CN102861861A (en) * | 2011-07-06 | 2013-01-09 | 张太良 | Precision-forging plastic molding technology of bell shell of ball-cage type universal joint |
| CN102434571A (en) * | 2011-12-06 | 2012-05-02 | 深圳市华星光电技术有限公司 | Universal ball |
| CN103042358A (en) * | 2012-09-11 | 2013-04-17 | 昌利锻造有限公司 | Method for manufacturing universal joint for automobile |
| CN203472990U (en) * | 2013-09-29 | 2014-03-12 | 芜湖禾田汽车工业有限公司 | Automobile steering ball pin |
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