CN106826142A - The manufacture method of automobile gearbox jackshaft - Google Patents
The manufacture method of automobile gearbox jackshaft Download PDFInfo
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- CN106826142A CN106826142A CN201710093740.8A CN201710093740A CN106826142A CN 106826142 A CN106826142 A CN 106826142A CN 201710093740 A CN201710093740 A CN 201710093740A CN 106826142 A CN106826142 A CN 106826142A
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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
- 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
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Abstract
The invention provides the manufacture method of automobile gearbox jackshaft, core scheme of the invention is as follows：A, blanking；B, heating；C, jumping-up, the length of the jumping-up blank after jumping-up are 0.5 0.6 times of the length of blanking blank；D, three rollers are swaged, and the length of the blank of swaging after swaging is 1.4 1.5 times of the length of jumping-up blank；E, cross wedge rolling；F, afterheat normalizing, ball blast after afterheat normalizing, are transferred to subsequent handling.Efficiently solve the existing jackshaft manufacturing cycle long, the overproof technical problem of banded structure, and then realize the high efficiency manufacture and the uniform technique effect of metallographic structure of jackshaft, and due to eliminating the isothermal normalizing operation of time consumption and energy consumption, using the afterheat normalizing operation of energy-conserving and environment-protective, productivity effect is substantially increased.Also, as a result of excellent forging technology, having broken this area can not be using the technology prejudice of afterheat normalizing for the conditioning treatment of jackshaft.
Description
Technical field
The present invention relates to jackshaft manufacturing technology field, more particularly to a kind of manufacturer of automobile gearbox jackshaft
Method.
Background technology
Jackshaft is particularly important part in Hyundai Motor gearbox, and a stress state for complexity is in during work.
The condition of work requirement jackshaft of jackshaft has intensity and anti-fatigue performance higher, while requiring there is enough rigidity again
And toughness.20th century mid-term occur in that a kind of axial workpiece novel processing technology-cross wedge rolling technique, be using rolling mill practice into
Shape part, belongs to rotoforming class technology, can process slewing parts and multi-diameter shaft etc..The technology is applied in actual production process
In, production efficiency is high；Its forming technology is with continuous, partial plastic forming mode, and energy consumption is low；Plastic deformation material reaches few cutting very
To without cutting, stock utilization is high.
It is well known, however, that the raw material that cross wedge rolling manufacture jackshaft is used are the bar long of continuous casting and rolling, due to continuous casting
All there is certain banded structure in the bar long of tandem rolling, and core tissue is substantially poorer than edge, and in cross wedge rolling manufacture
During countershaft, often only radial compression deformation, can not only improve banded structure, be possible to aggravate banded structure on the contrary, and this gives
Follow-up carburizing and quenching brings many troubles, so that after the current manufacture jackshaft rough forging for cross wedge rolling all
2-3 hour is typically heated by prolonged isothermal normalizing operation, isothermal normalizing operation, quick air-cooled rear insulation 2-3
Hour, increase very big energy resource consumption, and elongated the whole process-cycle.
Based on this, the present invention is in order to solve the above-mentioned technical problem, there is provided a kind of excellent automobile gearbox jackshaft
Manufacture method, to solve above-mentioned technical problem.
The content of the invention
The invention provides a kind of manufacture method of automobile gearbox jackshaft, existing jackshaft system is efficiently solved
Make that the cycle is long, the overproof technical problem of banded structure, and then realize jackshaft high efficiency manufacture and metallographic structure it is uniform
Technique effect, and due to eliminating the isothermal normalizing operation of time consumption and energy consumption, using the afterheat normalizing operation of energy-conserving and environment-protective, significantly
Improve productivity effect.Also, as a result of excellent forging technology, break this area preparing at heat for jackshaft
Reason can not be using the technology prejudice of afterheat normalizing.
In order to solve the above technical problems, the invention provides a kind of manufacture method of automobile gearbox jackshaft, it is described
The raw material of jackshaft use low-carbon alloy steel bar-shaped raw material long, and the manufacture method comprises the following steps：
The bar-shaped raw material of length are cut into or are sawn into the lower material base of corynebacterium by a, blanking using shearing machine or sawing machine according to certain specification
Material；
B, heating, blanking blank are sent in heating furnace by transfer roller and are heated, heating and temperature control 1180 DEG C-
1250 DEG C, the heat time determines according to the specification of bar-shaped blank and the specific species of heating furnace；
C, jumping-up, the blanking blank after heating is sent in upsetter by transfer roller carries out jumping-up, the jumping-up after jumping-up
The length of blank is 0.5-0.6 times of the length of blanking blank；
D, three rollers are swaged, and the jumping-up blank after jumping-up is sent in three roller swagers by transfer roller and is swaged, and are swaged
The length of blank of swaging afterwards is 1.4-1.5 times of the length of jumping-up blank；
E, cross wedge rolling, the blank of swaging after swaging are sent in cross wedge rolling milling train by transfer roller and carry out cross wedge rolling, by circle
The blank cross wedge rolling of swaging of column is shaped to middle axis blank；
F, afterheat normalizing, the middle axis blank of cross wedge rolling is sent in incubator by transfer roller carries out afterheat normalizing；
Subsequent handling is transported to by fork truck after afterheat normalizing, the manufacture of jackshaft is completed.
Further, the subsequent handling specifically includes following steps：
G, ball blast, by afterheat normalizing after middle axis blank fork truck be used together together with incubator be transported to ball blast from forge
Workshop, Shot Blasting is carried out to jackshaft blank, to remove the surface scale of middle axis blank；
It is h, rough turn, by ball blast after middle axis blank be fitted into transhipment basket, machining car is transported to from ball blast workshop using fork truck
Between, first to the rough turn machining of jackshaft blank,
I, smart car, will be rough turn after middle axis blank be sent to smart car operation, fine turning outer circle size stays mill grinding position is needed
Surplus 0.2mm-0.4mm is cut, remaining is worked into finished size；
J, gear hobbing, by smart car after middle axis blank be sent to gear hobbing operation, using five-shaft numerical control gear-hobbing machine to jackshaft blank
Gear hobbing is carried out, jackshaft blank is positioned with axial two ends centre bore first, then using circumferential clip mode to jackshaft base
Feed collet is tight, and gear hobbing starts, and reserved shaving surplus 0.04mm-0.05mm；
K, shaving, by gear hobbing after middle axis blank be sent to shaving operation, jackshaft blank is carried out using numerical control gear shaving machine
Shaving, because using step a-f manufacture jackshaft rough forgings, the banded structure of rough forging and thick genetic organization are significantly
Improve, therefore, shaving operation is without increasing teeth directional helix dip deviation；
L, rub with the hands spline, by shaving after middle axis blank be sent to rub with the hands spline operation, using accurate gear rolling machine to jackshaft blank
Carry out stranding spline；
M, drilling, are sent to drilling operating, using numerical control deep-hole drilling machine to jackshaft base by the middle axis blank rubbed with the hands after spline
Material carries out batch drilling；
N, carburizing and quenching, by drilling after middle axis blank frame up, heat treatment department is transported to using fork truck, using heat at
Neatly be fitted into middle axis blank in vacuum carburization glowing furnace by science and engineering dress carries out carburizing and quenching；
O, correction, correction process is transported to by the jackshaft blank after carburizing and quenching, and it is corrected using axle class automatic straightening machine；
P, cylindrical grinding, are transported to cylindrical grinding operation, using high-speed numeric control cylindrical grinder and number by the jackshaft blank after correction
Control angle head cylindrical grinding machine carries out grinding into final size to the excircle dimension of jackshaft blank；
Q, cleaning, matting is transported to by the jackshaft blank after cylindrical grinding, and jackshaft is carried out using supersonic wave cleaning machine
Cleaning, and apply or immersion in liquid preventives oil；
R, inspection storage, are inspected by random samples or full inspection to finished product jackshaft, to checking qualified jackshaft to carry out exterior and interior packing, are entered
Storehouse.
Further, it is provided with stay-warm case in the transfer roller after step b, jumping-up blank is into entering in three roller swagers
The temperature swaged of row is not less than 1130 DEG C, and blank of swaging is not less than 1080 into the temperature that cross wedge rolling is carried out in cross wedge rolling milling train
DEG C, middle axis blank is 900 DEG C -940 DEG C into the temperature of afterheat normalizing is carried out in incubator.
Further, the incubator is interlayer heat-insulating case, and axis blank in the middle of 1 layer, and every layer are placed in every layer of incubator
Inside it is provided with two row, 4-8 and arranges the standing groove matched with middle axis blank.
One or more technical schemes that the application is provided, at least have the following technical effect that or advantage：
The core scheme of the application is as follows：
A, blanking；
B, heating, blanking blank are sent in heating furnace by transfer roller and are heated, heating and temperature control 1180 DEG C-
1250 DEG C, the heat time determines according to the specification of bar-shaped blank and the specific species of heating furnace；
C, jumping-up, the blanking blank after heating is sent in upsetter by transfer roller carries out jumping-up, the jumping-up after jumping-up
The length of blank is 0.5-0.6 times of the length of blanking blank；
D, three rollers are swaged, and the jumping-up blank after jumping-up is sent in three roller swagers by transfer roller and is swaged, and are swaged
The length of blank of swaging afterwards is 1.4-1.5 times of the length of jumping-up blank；
E, cross wedge rolling, the blank of swaging after swaging are sent in cross wedge rolling milling train by transfer roller and carry out cross wedge rolling, by circle
The blank cross wedge rolling of swaging of column is shaped to middle axis blank；
F, afterheat normalizing, the middle axis blank of cross wedge rolling is sent in incubator by transfer roller carries out afterheat normalizing.
And, it is provided with stay-warm case in the transfer roller after step b, jumping-up blank is into carrying out in three roller swagers
The temperature swaged is not less than 1130 DEG C, and blank of swaging is not less than 1080 DEG C into the temperature that cross wedge rolling is carried out in cross wedge rolling milling train,
Middle axis blank is 900 DEG C -940 DEG C into the temperature of afterheat normalizing is carried out in incubator.
And, the incubator is interlayer heat-insulating case, and axis blank in the middle of 1 layer is placed in every layer of incubator, and in every layer
It is provided with two row, 4-8 and arranges the standing groove matched with middle axis blank.
As a result of above-mentioned core scheme, i.e. the application jumping-up is increased by cross wedge rolling and technique of swaging, although
Increased two procedures, but the structural homogenity of the jackshaft after cross wedge rolling can be substantially improved due to this two procedures, make
The isothermal normalizing operation that can omit follow-up time consumption and energy consumption is obtained, and also without common normalizing process, more than uniqueness
Hot normalizing incubator, the temperature of strict control jumping-up operation to every procedure of cross wedge rolling operation so that the group after afterheat normalizing
Knit the requirement that performance fully meets jackshaft subsequent handling.
It is long to efficiently solve the existing jackshaft manufacturing cycle, the overproof technical problem of banded structure, and then realizes
The high efficiency manufacture of countershaft and the uniform technique effect of metallographic structure, and due to eliminating the isothermal normalizing work of time consumption and energy consumption
Sequence, using the afterheat normalizing operation of energy-conserving and environment-protective, substantially increases productivity effect.Also, as a result of excellent forging work
Skill, having broken this area can not be using the technology prejudice of afterheat normalizing for the conditioning treatment of jackshaft.
Brief description of the drawings
Fig. 1 is the schematic diagram of automobile gearbox jackshaft forging blank；
Fig. 2 is the process chart that jackshaft uses common forging in the prior art；
Fig. 3 is the process chart that jackshaft is manufactured using cross wedge rolling in the prior art；
Fig. 4 is the metallograph of low-carbon alloy steel banded structure；
Fig. 5 is the metallograph of the uniform statenchyma of low-carbon alloy steel；
Fig. 6 is the automobile gearbox centre production method of shaft flow chart in the embodiment of the present invention；
Fig. 7 is the forging line schematic diagram of the automobile gearbox jackshaft in the embodiment of the present invention；
Fig. 8 is the forging blank schematic flow sheet of the automobile gearbox jackshaft in the embodiment of the present invention；
In figure, 00 raw material, 01 blanking blank, 02 jumping-up blank, 03 swages blank, 04 middle axis blank, 1 shearing machine, 2
Heating furnace, 3 upsetters, 4 swagers, 5 cross wedge rolling milling trains, 6 incubators, 7 transfer rollers.
Specific embodiment
Technical scheme in present embodiment is solution above-mentioned technical problem.General thought is as follows：
There is provided a kind of manufacture method of automobile gearbox jackshaft, the raw material of jackshaft are long bar-shaped using low-carbon alloy steel
Raw material, manufacture method includes following core procedure：
The bar-shaped raw material of length are cut into or are sawn into the lower material base of corynebacterium by a, blanking using shearing machine or sawing machine according to certain specification
Material；
B, heating, blanking blank are sent in heating furnace by transfer roller and are heated, heating and temperature control 1180 DEG C-
1250 DEG C, the heat time determines according to the specification of bar-shaped blank and the specific species of heating furnace；
C, jumping-up, the blanking blank after heating is sent in upsetter by transfer roller carries out jumping-up, the jumping-up after jumping-up
The length of blank is 0.5-0.6 times of the length of blanking blank；
D, three rollers are swaged, and the jumping-up blank after jumping-up is sent in three roller swagers by transfer roller and is swaged, and are swaged
The length of blank of swaging afterwards is 1.4-1.5 times of the length of jumping-up blank；
E, cross wedge rolling, the blank of swaging after swaging are sent in cross wedge rolling milling train by transfer roller and carry out cross wedge rolling, by circle
The blank cross wedge rolling of swaging of column is shaped to middle axis blank；
F, afterheat normalizing, the middle axis blank of cross wedge rolling is sent in incubator by transfer roller carries out afterheat normalizing.
And, it is provided with stay-warm case in the transfer roller after step b, jumping-up blank is into carrying out in three roller swagers
The temperature swaged is not less than 1130 DEG C, and blank of swaging is not less than 1080 DEG C into the temperature that cross wedge rolling is carried out in cross wedge rolling milling train,
Middle axis blank is 900 DEG C -940 DEG C into the temperature of afterheat normalizing is carried out in incubator.
And, incubator is interlayer heat-insulating case, axis blank in the middle of 1 layer is placed in every layer of incubator, and set in every layer
There is the standing groove that two row, 4-8 rows are matched with middle axis blank.
Ball blast workshop ball blast is transferred to after afterheat normalizing and is transferred to subsequent handling treatment.
Embodiment one：
In embodiment one, there is provided a kind of manufacture method of automobile gearbox jackshaft, referring to Fig. 6-8, the original of jackshaft
Material uses low-carbon alloy steel bar-shaped raw material 00 long, and manufacture method comprises the following steps：
The bar-shaped raw material 00 of length are cut into or are sawn into the blanking of corynebacterium by a, blanking using shearing machine 1 or sawing machine according to certain specification
Blank 01；
B, heating, blanking blank 01 are sent in heating furnace 2 by transfer roller 7 and are heated, and heating and temperature control exists
1180 DEG C -1200 DEG C, the heat time determines according to the specification of bar-shaped blank 01 and the specific species of heating furnace；
C, jumping-up, the blanking blank 01 after heating is sent in upsetter 3 by transfer roller 7 carries out jumping-up, after jumping-up
The length of jumping-up blank 02 is 0.6 times of the length of blanking blank 01；
D, three rollers are swaged, and the jumping-up blank 02 after jumping-up is sent in three roller swagers 4 by transfer roller 7 and is swaged,
The length of the blank 03 of swaging after swaging is 1.4 times of the length of jumping-up blank 02；
E, cross wedge rolling, the blank 03 of swaging after swaging are sent in cross wedge rolling milling train 5 by transfer roller 7 and carry out cross wedge rolling,
The columned cross wedge rolling of blank 03 of swaging is shaped to middle axis blank 04；
F, afterheat normalizing, the middle axis blank 04 of cross wedge rolling is sent in incubator 6 by transfer roller 7 is carrying out waste heat just
Fire；
Subsequent handling is transported to by fork truck after afterheat normalizing, the manufacture of jackshaft is completed.
In the present embodiment, subsequent handling specifically includes following steps：
G, ball blast, by afterheat normalizing after middle axis blank 04 fork truck be used together together with incubator be transported to throwing from forge
Ball workshop, Shot Blasting is carried out to jackshaft blank 04, to remove the surface scale of middle axis blank 04；
It is h, rough turn, by ball blast after middle axis blank 04 be fitted into transhipment basket, machining is transported to from ball blast workshop using fork truck
Workshop, first to the rough turn machining of jackshaft blank 04,
I, smart car, will be rough turn after middle axis blank be sent to smart car operation, fine turning outer circle size stays mill grinding position is needed
Surplus 0.3mm-0.4mm is cut, remaining is worked into finished size；
J, gear hobbing, by smart car after middle axis blank be sent to gear hobbing operation, using five-shaft numerical control gear-hobbing machine to jackshaft blank
Gear hobbing is carried out, jackshaft blank is positioned with axial two ends centre bore first, then using circumferential clip mode to jackshaft base
Feed collet is tight, and gear hobbing starts, and reserved shaving surplus 0.05mm；
K, shaving, by gear hobbing after middle axis blank be sent to shaving operation, jackshaft blank is carried out using numerical control gear shaving machine
Shaving, because using step a-f manufacture jackshaft rough forgings, the banded structure of rough forging and thick genetic organization are significantly
Improve, therefore, shaving operation is without increasing teeth directional helix dip deviation；
L, rub with the hands spline, by shaving after middle axis blank be sent to rub with the hands spline operation, using accurate gear rolling machine to jackshaft blank
Carry out stranding spline；
M, drilling, are sent to drilling operating, using numerical control deep-hole drilling machine to jackshaft base by the middle axis blank rubbed with the hands after spline
Material carries out batch drilling；
N, carburizing and quenching, by drilling after middle axis blank frame up, heat treatment department is transported to using fork truck, using heat at
Neatly be fitted into middle axis blank in vacuum carburization glowing furnace by science and engineering dress carries out carburizing and quenching；
O, correction, correction process is transported to by the jackshaft blank after carburizing and quenching, and it is corrected using axle class automatic straightening machine；
P, cylindrical grinding, are transported to cylindrical grinding operation, using high-speed numeric control cylindrical grinder and number by the jackshaft blank after correction
Control angle head cylindrical grinding machine carries out grinding into final size to the excircle dimension of jackshaft blank；
Q, cleaning, matting is transported to by the jackshaft blank after cylindrical grinding, and jackshaft is carried out using supersonic wave cleaning machine
Cleaning, and apply or immersion in liquid preventives oil；
R, inspection storage, are inspected by random samples or full inspection to finished product jackshaft, to checking qualified jackshaft to carry out exterior and interior packing, are entered
Storehouse.
In the present embodiment, stay-warm case is provided with the transfer roller 7 after step b, jumping-up blank 02 enters three rollers and revolves
The temperature swaged in forging machine 4 is not less than 1100 DEG C, blank 03 into the temperature that cross wedge rolling is carried out in cross wedge rolling milling train 5 of swaging
It is not less than 1050 DEG C, middle axis blank 04 is 920 DEG C -935 DEG C into the temperature of afterheat normalizing is carried out in incubator 6.
In the present embodiment, incubator 6 is interlayer heat-insulating case, and axis blank 04 in the middle of 1 layer is placed in every layer of incubator, and often
Two row, 8 rows and the centre standing groove that matches of axis blank 04 are provided with layer.
Embodiment two：
In embodiment two, there is provided a kind of manufacture method of automobile gearbox jackshaft, referring to Fig. 6-8, the original of jackshaft
Material uses low-carbon alloy steel bar-shaped raw material 00 long, and manufacture method comprises the following steps：
The bar-shaped raw material 00 of length are cut into or are sawn into the blanking of corynebacterium by a, blanking using shearing machine 1 or sawing machine according to certain specification
Blank 01；
B, heating, blanking blank 01 are sent in heating furnace 2 by transfer roller 7 and are heated, and heating and temperature control exists
1200 DEG C -1230 DEG C, the heat time determines according to the specification of bar-shaped blank 01 and the specific species of heating furnace；
C, jumping-up, the blanking blank 01 after heating is sent in upsetter 3 by transfer roller 7 carries out jumping-up, after jumping-up
The length of jumping-up blank 02 is 0.55 times of the length of blanking blank 01；
D, three rollers are swaged, and the jumping-up blank 02 after jumping-up is sent in three roller swagers 4 by transfer roller 7 and is swaged,
The length of the blank 03 of swaging after swaging is 1.45 times of the length of jumping-up blank 02；
E, cross wedge rolling, the blank 03 of swaging after swaging are sent in cross wedge rolling milling train 5 by transfer roller 7 and carry out cross wedge rolling,
The columned cross wedge rolling of blank 03 of swaging is shaped to middle axis blank 04；
F, afterheat normalizing, the middle axis blank 04 of cross wedge rolling is sent in incubator 6 by transfer roller 7 is carrying out waste heat just
Fire；
Subsequent handling is transported to by fork truck after afterheat normalizing, the manufacture of jackshaft is completed.
In the present embodiment, subsequent handling specifically includes following steps：
G, ball blast, by afterheat normalizing after middle axis blank 04 fork truck be used together together with incubator be transported to throwing from forge
Ball workshop, Shot Blasting is carried out to jackshaft blank 04, to remove the surface scale of middle axis blank 04；
It is h, rough turn, by ball blast after middle axis blank 04 be fitted into transhipment basket, machining is transported to from ball blast workshop using fork truck
Workshop, first to the rough turn machining of jackshaft blank 04,
I, smart car, will be rough turn after middle axis blank be sent to smart car operation, fine turning outer circle size stays mill grinding position is needed
Surplus 0.25mm-0.35mm is cut, remaining is worked into finished size；
J, gear hobbing, by smart car after middle axis blank be sent to gear hobbing operation, using five-shaft numerical control gear-hobbing machine to jackshaft blank
Gear hobbing is carried out, jackshaft blank is positioned with axial two ends centre bore first, then using circumferential clip mode to jackshaft base
Feed collet is tight, and gear hobbing starts, and reserved shaving surplus 0.04mm；
K, shaving, by gear hobbing after middle axis blank be sent to shaving operation, jackshaft blank is carried out using numerical control gear shaving machine
Shaving, because using step a-f manufacture jackshaft rough forgings, the banded structure of rough forging and thick genetic organization are significantly
Improve, therefore, shaving operation is without increasing teeth directional helix dip deviation；
L, rub with the hands spline, by shaving after middle axis blank be sent to rub with the hands spline operation, using accurate gear rolling machine to jackshaft blank
Carry out stranding spline；
M, drilling, are sent to drilling operating, using numerical control deep-hole drilling machine to jackshaft base by the middle axis blank rubbed with the hands after spline
Material carries out batch drilling；
N, carburizing and quenching, by drilling after middle axis blank frame up, heat treatment department is transported to using fork truck, using heat at
Neatly be fitted into middle axis blank in vacuum carburization glowing furnace by science and engineering dress carries out carburizing and quenching；
O, correction, correction process is transported to by the jackshaft blank after carburizing and quenching, and it is corrected using axle class automatic straightening machine；
P, cylindrical grinding, are transported to cylindrical grinding operation, using high-speed numeric control cylindrical grinder and number by the jackshaft blank after correction
Control angle head cylindrical grinding machine carries out grinding into final size to the excircle dimension of jackshaft blank；
Q, cleaning, matting is transported to by the jackshaft blank after cylindrical grinding, and jackshaft is carried out using supersonic wave cleaning machine
Cleaning, and apply or immersion in liquid preventives oil；
R, inspection storage, are inspected by random samples or full inspection to finished product jackshaft, to checking qualified jackshaft to carry out exterior and interior packing, are entered
Storehouse.
In the present embodiment, stay-warm case is provided with the transfer roller 7 after step b, jumping-up blank 02 enters three rollers and revolves
The temperature swaged in forging machine 4 is not less than 1120 DEG C, blank 03 into the temperature that cross wedge rolling is carried out in cross wedge rolling milling train 5 of swaging
It is not less than 1070 DEG C, middle axis blank 04 is 925 DEG C -935 DEG C into the temperature of afterheat normalizing is carried out in incubator 6.
In the present embodiment, incubator 6 is interlayer heat-insulating case, and axis blank 04 in the middle of 1 layer is placed in every layer of incubator, and often
Two row, 6 rows and the centre standing groove that matches of axis blank 04 are provided with layer.
Embodiment three：
In embodiment three, there is provided a kind of manufacture method of automobile gearbox jackshaft, referring to Fig. 6-8, the original of jackshaft
Material uses low-carbon alloy steel bar-shaped raw material 00 long, and manufacture method comprises the following steps：
The bar-shaped raw material 00 of length are cut into or are sawn into the blanking of corynebacterium by a, blanking using shearing machine 1 or sawing machine according to certain specification
Blank 01；
B, heating, blanking blank 01 are sent in heating furnace 2 by transfer roller 7 and are heated, and heating and temperature control exists
1210 DEG C -1240 DEG C, the heat time determines according to the specification of bar-shaped blank 01 and the specific species of heating furnace；
C, jumping-up, the blanking blank 01 after heating is sent in upsetter 3 by transfer roller 7 carries out jumping-up, after jumping-up
The length of jumping-up blank 02 is 0.6 times of the length of blanking blank 01；
D, three rollers are swaged, and the jumping-up blank 02 after jumping-up is sent in three roller swagers 4 by transfer roller 7 and is swaged,
The length of the blank 03 of swaging after swaging is 1.5 times of the length of jumping-up blank 02；
E, cross wedge rolling, the blank 03 of swaging after swaging are sent in cross wedge rolling milling train 5 by transfer roller 7 and carry out cross wedge rolling,
The columned cross wedge rolling of blank 03 of swaging is shaped to middle axis blank 04；
F, afterheat normalizing, the middle axis blank 04 of cross wedge rolling is sent in incubator 6 by transfer roller 7 is carrying out waste heat just
Fire；
Subsequent handling is transported to by fork truck after afterheat normalizing, the manufacture of jackshaft is completed.
In the present embodiment, subsequent handling specifically includes following steps：
G, ball blast, by afterheat normalizing after middle axis blank 04 fork truck be used together together with incubator be transported to throwing from forge
Ball workshop, Shot Blasting is carried out to jackshaft blank 04, to remove the surface scale of middle axis blank 04；
It is h, rough turn, by ball blast after middle axis blank 04 be fitted into transhipment basket, machining is transported to from ball blast workshop using fork truck
Workshop, first to the rough turn machining of jackshaft blank 04,
I, smart car, will be rough turn after middle axis blank be sent to smart car operation, fine turning outer circle size stays mill grinding position is needed
Surplus 0.2mm is cut, remaining is worked into finished size；
J, gear hobbing, by smart car after middle axis blank be sent to gear hobbing operation, using five-shaft numerical control gear-hobbing machine to jackshaft blank
Gear hobbing is carried out, jackshaft blank is positioned with axial two ends centre bore first, then using circumferential clip mode to jackshaft base
Feed collet is tight, and gear hobbing starts, and reserved shaving surplus 0.04mm；
K, shaving, by gear hobbing after middle axis blank be sent to shaving operation, jackshaft blank is carried out using numerical control gear shaving machine
Shaving, because using step a-f manufacture jackshaft rough forgings, the banded structure of rough forging and thick genetic organization are significantly
Improve, therefore, shaving operation is without increasing teeth directional helix dip deviation；
L, rub with the hands spline, by shaving after middle axis blank be sent to rub with the hands spline operation, using accurate gear rolling machine to jackshaft blank
Carry out stranding spline；
M, drilling, are sent to drilling operating, using numerical control deep-hole drilling machine to jackshaft base by the middle axis blank rubbed with the hands after spline
Material carries out batch drilling；
N, carburizing and quenching, by drilling after middle axis blank frame up, heat treatment department is transported to using fork truck, using heat at
Neatly be fitted into middle axis blank in vacuum carburization glowing furnace by science and engineering dress carries out carburizing and quenching；
O, correction, correction process is transported to by the jackshaft blank after carburizing and quenching, and it is corrected using axle class automatic straightening machine；
P, cylindrical grinding, are transported to cylindrical grinding operation, using high-speed numeric control cylindrical grinder and number by the jackshaft blank after correction
Control angle head cylindrical grinding machine carries out grinding into final size to the excircle dimension of jackshaft blank；
Q, cleaning, matting is transported to by the jackshaft blank after cylindrical grinding, and jackshaft is carried out using supersonic wave cleaning machine
Cleaning, and apply or immersion in liquid preventives oil；
R, inspection storage, are inspected by random samples or full inspection to finished product jackshaft, to checking qualified jackshaft to carry out exterior and interior packing, are entered
Storehouse.
In the present embodiment, stay-warm case is provided with the transfer roller 7 after step b, jumping-up blank 02 enters three rollers and revolves
The temperature swaged in forging machine 4 is not less than 1130 DEG C, blank 03 into the temperature that cross wedge rolling is carried out in cross wedge rolling milling train 5 of swaging
It is not less than 1080 DEG C, middle axis blank 04 is 930 DEG C -935 DEG C into the temperature of afterheat normalizing is carried out in incubator 6.
In the present embodiment, incubator 6 is interlayer heat-insulating case, and axis blank 04 in the middle of 1 layer is placed in every layer of incubator, and often
Two row, 5 rows and the centre standing groove that matches of axis blank 04 are provided with layer.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Claims (4)
1. the manufacture method of automobile gearbox jackshaft, the raw material of the jackshaft use low-carbon alloy steel bar-shaped former material long
Material（00）, the manufacture method comprises the following steps：
A, blanking, using shearing machine（1）Or sawing machine will the bar-shaped raw material of length（00）Corynebacterium is cut into or is sawn into according to certain specification
Blanking blank（01）；
B, heating, by blanking blank（01）By transfer roller（7）It is sent to heating furnace（2）In heated, heating-up temperature control
, at 1180 DEG C -1250 DEG C, the heat time is according to bar-shaped blank for system（01）Specification and heating furnace specific species determine；
C, jumping-up, by the blanking blank after heating（01）By transfer roller（7）It is sent to upsetter（3）In carry out jumping-up, upsetting
Jumping-up blank after thick（02）Length be blanking blank（01）0.5-0.6 times of length；
D, three rollers are swaged, by the jumping-up blank after jumping-up（02）By transfer roller（7）It is sent to three roller swagers（4）In carry out
Swage, the blank of swaging after swaging（03）Length be jumping-up blank（02）1.4-1.5 times of length；
E, cross wedge rolling, the blank of swaging after swaging（03）By transfer roller（7）It is sent to cross wedge rolling milling train（5）In carry out wedge
Transverse rolling, by columned blank of swaging（03）Cross wedge rolling is shaped to middle axis blank（04）；
F, afterheat normalizing, by the middle axis blank of cross wedge rolling（04）By transfer roller（7）It is sent to incubator（6）In carry out it is remaining
Hot normalizing；
Subsequent handling is transported to by fork truck after afterheat normalizing, the manufacture of jackshaft is completed.
2. the manufacture method of automobile gearbox jackshaft according to claim 2, it is characterised in that the subsequent handling
Specifically include following steps：
G, ball blast, by afterheat normalizing after middle axis blank（04）Fork truck is used together together with incubator to be transported to from forge
Ball blast workshop, to jackshaft blank（04）Shot Blasting is carried out, to remove middle axis blank（04）Surface scale；
It is h, rough turn, by ball blast after middle axis blank（04）It is fitted into transhipment basket, machine is transported to from ball blast workshop using fork truck and is added
Work workshop, first to jackshaft blank（04）Rough turn machining,
I, smart car, will be rough turn after middle axis blank be sent to smart car operation, fine turning outer circle size stays mill grinding position is needed
Surplus 0.2mm-0.4mm is cut, remaining is worked into finished size；
J, gear hobbing, by smart car after middle axis blank be sent to gear hobbing operation, using five-shaft numerical control gear-hobbing machine to jackshaft blank
Gear hobbing is carried out, jackshaft blank is positioned with axial two ends centre bore first, then using circumferential clip mode to jackshaft base
Feed collet is tight, and gear hobbing starts, and reserved shaving surplus 0.04mm-0.05mm；
K, shaving, by gear hobbing after middle axis blank be sent to shaving operation, jackshaft blank is carried out using numerical control gear shaving machine
Shaving, because using step a-f manufacture jackshaft rough forgings, the banded structure of rough forging and thick genetic organization are significantly
Improve, therefore, shaving operation is without increasing teeth directional helix dip deviation；
L, rub with the hands spline, by shaving after middle axis blank be sent to rub with the hands spline operation, using accurate gear rolling machine to jackshaft blank
Carry out stranding spline；
M, drilling, are sent to drilling operating, using numerical control deep-hole drilling machine to jackshaft base by the middle axis blank rubbed with the hands after spline
Material carries out batch drilling；
N, carburizing and quenching, by drilling after middle axis blank frame up, heat treatment department is transported to using fork truck, using heat at
Neatly be fitted into middle axis blank in vacuum carburization glowing furnace by science and engineering dress carries out carburizing and quenching；
O, correction, correction process is transported to by the jackshaft blank after carburizing and quenching, and it is corrected using axle class automatic straightening machine；
P, cylindrical grinding, are transported to cylindrical grinding operation, using high-speed numeric control cylindrical grinder and number by the jackshaft blank after correction
Control angle head cylindrical grinding machine carries out grinding into final size to the excircle dimension of jackshaft blank；
Q, cleaning, matting is transported to by the jackshaft blank after cylindrical grinding, and jackshaft is carried out using supersonic wave cleaning machine
Cleaning, and apply or immersion in liquid preventives oil；
R, inspection storage, are inspected by random samples or full inspection to finished product jackshaft, to checking qualified jackshaft to carry out exterior and interior packing, are entered
Storehouse.
3. the manufacture method of automobile gearbox jackshaft according to claim 1 and 2, it is characterised in that step b it
Transfer roller afterwards（7）On be provided with stay-warm case, jumping-up blank（02）Into three roller swagers（4）In the temperature swaged not
Less than 1130 DEG C, blank of swaging（03）Into cross wedge rolling milling train（5）In carry out the temperature of cross wedge rolling and be not less than 1080 DEG C, jackshaft
Blank（04）Into incubator（6）In carry out afterheat normalizing temperature be 900 DEG C -940 DEG C.
4. the manufacture method of automobile gearbox jackshaft according to claim 3, it is characterised in that the incubator
（6）It is interlayer heat-insulating case, axis blank in the middle of 1 layer is placed in every layer of incubator（04）, and two row, 4-8 rows are provided with every layer
With middle axis blank（04）The standing groove of matching.
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| CN107116347A (en) * | 2017-07-05 | 2017-09-01 | 泰州市东方传动技术有限公司 | A kind of processing technology of insertion axle |
| CN109027190A (en) * | 2018-08-22 | 2018-12-18 | 石狮真发齿轮有限公司 | A kind of lorry speed change jackshaft and its processing technology |
| CN113084467A (en) * | 2021-04-06 | 2021-07-09 | 江苏太平洋精锻科技股份有限公司 | Forming processing method of blind hole hollow motor shaft |
| CN113953780A (en) * | 2021-11-25 | 2022-01-21 | 自贡市川力科技股份有限公司 | Multi-step shaft machining process |
| CN116944818A (en) * | 2023-06-21 | 2023-10-27 | 台州必拓汽车配件股份有限公司 | Intelligent processing method and system for new energy automobile rotating shaft |
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| CN116944818B (en) * | 2023-06-21 | 2024-05-24 | 台州必拓汽车配件股份有限公司 | Intelligent processing method and system for new energy automobile rotating shaft |
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