CN104275495B - Machining system and machining method of automobile differential shell - Google Patents
Machining system and machining method of automobile differential shell Download PDFInfo
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- CN104275495B CN104275495B CN201410460520.0A CN201410460520A CN104275495B CN 104275495 B CN104275495 B CN 104275495B CN 201410460520 A CN201410460520 A CN 201410460520A CN 104275495 B CN104275495 B CN 104275495B
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- 238000003754 machining Methods 0.000 title claims abstract description 59
- 238000009434 installation Methods 0.000 claims description 31
- 239000000969 carrier Substances 0.000 claims description 21
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000003892 spreading Methods 0.000 claims description 4
- 239000011265 semifinished product Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000036633 rest Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000002950 deficient Effects 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005591 charge neutralization Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001264 neutralization Effects 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 210000004247 Hand Anatomy 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/36—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
- B23B5/40—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes for turning spherical surfaces inside or outside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
- B23B3/36—Associations of only turning-machines directed to a particular metal-working result
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
Abstract
The invention belongs to the field of machining, and specifically relates to a machining system and a machining method for machining outer circles of mounting positions of bearings at two ends of a differential shell and a cambered surface of a mounting ball of a gear in the differential shell. The machining system of the automobile differential shell mainly comprises a lathe for machining the outer circles of the mounting positions of the bearings at the two ends of the differential shell, a lathe for machining the cambered surface of the mounting ball of the gear in the differential shell and a control system, wherein the lathe for machining the outer circles of the mounting positions of the bearings at the two ends of the differential shell comprises a first body, a main shaft, a pneumatic tailstock and a first tool; the lathe for machining the cambered surface of the mounting ball of the gear in the differential shell comprises a second body, a left power head, a right power head, a positioning and clamping device and a tool changing device. According to the system and the method, the machining accuracy and the machining efficiency are improved, the rejection rate is greatly reduced, and the problem of high difficulty in machining of the outer circles of the mounting positions of the bearings at the two ends of the differential shell and the cambered surface of the mounting ball of the gear in the differential shell commonly existing in the conventional modes is effectively solved.
Description
Technical field
The invention belongs to field of machining, and in particular to one kind processing differential casing bearings at both ends installation position it is cylindrical and
Differential casing internal gear installs the system of processing and processing method of spherical cambered surface.
Background technology
Now for the processing of minicar differential casing, mainly there are two processing difficulties (shown in Fig. 1), the first difficult point
The processing of differential casing bearings at both ends installation position cylindrical 11, axiality has high demands, tolerance within 0.05 millimeter of ￠,
Two difficult points are the processing that differential casing internal gear installs spherical cambered surface 12, and because processing space is little, performance has high demands, shape
It is difficult to position of related features.For first point of processing is typically completed using processing one end on lathe, turn around to process the other end
Method, but overproof using poor shell bearings at both ends position axiality is easily caused after the method processing, gear ring mounting surface beating degree surpasses
Difference.Second point processes most work in-process and uses molding countersink ream spherical cambered surface, plus man-hour to there is countersink and install location difficulty, effect in the heart
Lowly, in addition countersink low intensity, deforms greatly rate, and processing form and position tolerance is big, and size is unstable, all factors for processing generation above
Cause to differ from after shell, gear and bearing assembly, part transmission abnormal sound occur, rotate dumb, part service life is short, makes whole
Car hydraulic performance decline, affects consumer to use.
The content of the invention
Present invention seek to address that the problems referred to above, there is provided a kind of automobile differential housing system of processing and processing method, it
Efficiently solve that processing differential casing bearings at both ends installation position using traditional approach generally existing is cylindrical and differential carrier
In vivo gear installs the big problem of spherical cambered surface difficulty, improves machining accuracy and working (machining) efficiency, greatly reduces percent defective, and it is adopted
Technical scheme is as follows：
A kind of automobile differential housing system of processing, it is characterised in that：It is mainly installed by differential casing bearings at both ends
Position Excircle machining lathe, differential casing internal gear install spherical cambered surface lathe for machining and control system composition；
The differential casing bearings at both ends installation position Excircle machining lathe includes：
First fuselage；
Main shaft, for driving workpiece to rotate, thereon with hole inner support can be carried out by the centre bore to differential casing
The hydraulic expanding core positioner of the fixed workpiece of positioning；
Pneumatic tailstock, thereon with the rolling center for top tight workpiece, the free end of the rolling center is taper, institute
State rolling center and rotate with tailstock and be connected；
First cutter, for cutting workpiece, it passes through knife rest and is connected on the first fuselage；
The differential casing internal gear installs spherical cambered surface lathe for machining to be included：
Second fuselage；
Left unit head, for driving forming cutter to rotate, there is the knife bar that can make left unit head to make left and right feed motion for it
Knife bar feed arrangement；
Right unit head, for driving forming cutter to rotate, there is the knife bar that can make right unit head to make left and right feed motion for it
Knife bar feed arrangement, the right unit head is symmetrical arranged with left unit head；
Positioning clamping device, the positioning and fixation for workpiece；
Tool changing device, for forming cutter to be inserted in differential carrier body and the taking-up from differential carrier body.
On the basis of above-mentioned technical proposal, first cutter is two, the left side for being disposed in proximity to differential casing
At end, another is disposed in proximity at the right-hand member of differential casing.
The method for processing differential casing using above-mentioned automobile differential housing system of processing, it is characterised in that include
Following steps：
A) the semi-finished product differential casing with centre bore is got out；
B) the hydraulic expanding core positioner of differential casing bearings at both ends installation position Excircle machining lathe is through at into differential mechanism
In housing left end centre bore, with hand rest differential casing is lived；
C) Pneumatic tailstock promotes the rolling center of tailstock to peak in differential casing right-hand member centre bore, top tight workpiece, differential
The hydraulic expanding core positioner spreading of device housing left end is so as to positioning and clamp differential casing；
D) main shaft is rotated using main driving device, feeds the first cutter, make two the first cutters simultaneously to differential casing
Cut, so that differential casing bearings at both ends installation position is cylindrical while shaping；
E) differential casing after cutting is removed from the Excircle machining lathe of differential casing bearings at both ends installation position, and
Differential casing is fixed on into differential casing internal gear using positioning clamping device to install on spherical cambered surface lathe for machining；
F) forming cutter is respectively arranged on the first tool changing cylinder of tool changing device；
G) slide block is made to reach tool change position using the second tool changing cylinder thrust；
H) thrust of the first tool changing cylinder promotes changing knife rod that forming cutter is inserted into differential by differential carrier body side surface macropore
In device housing, the knife bar of left unit head and right unit head is stretched in differential carrier body and molding by differential carrier body side surface aperture
Knife is connected, and changing knife rod and forming cutter depart from, and the thrust of the first tool changing cylinder promotes changing knife rod to return original position；
I) lathe starts, and left unit head and right unit head drive forming cutter rotation processing differential casing internal gear to install ball
Cambered surface；
J) completion of processing, left unit head and right unit head stop the rotation, and the first tool changing cylinder promotes changing knife rod to enter differential
Connect with forming cutter in device housing；
K) knife bar and forming cutter of left unit head and right unit head departs from, and knife bar is moved back from differential carrier body side surface aperture
Go out, changing knife rod returns original position under cylinder thrust with forming cutter from housing, and positioning clamping device release differential casing will
The differential casing for processing is installed from gear and removed on spherical cambered surface lathe for machining.
The invention has the advantages that：First, machining accuracy and working (machining) efficiency are improve；2nd, safe and reliable, operation letter
Folk prescription is just；3rd, percent defective is greatly reduced, is efficiently solved using the processing differential casing two of traditional approach generally existing
End bearing installation position is cylindrical and gear installs the big problem of spherical cambered surface difficulty.
Description of the drawings
Fig. 1：The structural representation of differential casing；
Fig. 2：The overlooking the structure diagram of Fig. 1；
Fig. 3：The left view structural representation of Fig. 1；
Fig. 4：The cross-sectional view of Fig. 2；
Fig. 5：The structural representation of conventional differential cases bearings at both ends installation position Excircle machining lathe；
Fig. 6：Conventional differential cases internal gear installs the structural representation of spherical cambered surface lathe for machining；
Fig. 7：The structural representation of differential casing bearings at both ends installation position Excircle machining lathe of the present invention；
Fig. 8：Differential casing internal gear of the present invention installs the structural representation of spherical cambered surface lathe for machining；
Fig. 9：The overlooking the structure diagram of Fig. 8；
Figure 10：The structural representation of hydraulic expanding core positioner of the present invention；
Figure 11：The structural representation of positioning clamping device of the present invention；
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described with example：
Fig. 1 is the structural representation of differential casing, and Fig. 2 is the overlooking the structure diagram of Fig. 1, and Fig. 3 is the left view knot of Fig. 1
Structure schematic diagram, Fig. 4 is the cross-sectional view of Fig. 2, and Fig. 5 is conventional differential cases bearings at both ends installation position Excircle machining car
The structural representation of bed, Fig. 6 is the structural representation that conventional differential cases internal gear installs spherical cambered surface lathe for machining, and Fig. 7 is
The structural representation of differential casing bearings at both ends installation position Excircle machining lathe of the present invention, Fig. 8 is difference of the present invention
Fast device housing internal gear installs the structural representation of spherical cambered surface lathe for machining, and Fig. 9 is the overlooking the structure diagram of Fig. 8, Tu10Shi
The structural representation of hydraulic expanding core positioner of the present invention；Figure 11 is the structural representation of positioning clamping device of the present invention
Figure.
Explanation is needed exist for, noun of locality left and right described in text is fixed on the basis of the view shown in Fig. 7 and Fig. 8
Justice, it will be appreciated that the use of the noun of locality should not limit the protection domain that the application is asked.
As shown in Figure 1 to Figure 4 and shown in Fig. 7 to Fig. 9, a kind of automobile differential housing system of processing, it is characterised in that：Its is main
Spherical cambered surface lathe for machining is installed by differential casing bearings at both ends installation position Excircle machining lathe 100, differential casing internal gear
200 and control system composition；
The differential casing bearings at both ends installation position Excircle machining lathe 100 includes：
First fuselage 20；
Main shaft 24, for driving workpiece to rotate, thereon with hole can be carried out by the centre bore 15 to differential casing 10
Inner support positions and fixes the hydraulic expanding core positioner 21 of workpiece；
Pneumatic tailstock 22, using cylinder thrust retractable, thereon with the rolling center 23 for top tight workpiece, institute
The free end for stating rolling center 23 is taper, and the rolling center 23 is rotated with Pneumatic tailstock 22 and is connected, during work pieces process, activity
Top 23 and workpiece rotate together；
First cutter (not shown), for cutting workpiece, it passes through knife rest and is connected on the first fuselage 20；
The differential casing internal gear installs spherical cambered surface lathe for machining 200 to be included：
Second fuselage 30；
Left unit head 31, for driving forming cutter 34 to rotate, there is the knife bar that can make left unit head 31 to make left and right feeding for it
The knife bar feed arrangement of motion；
Right unit head 32, for driving forming cutter 34 to rotate, there is the knife bar that can make right unit head 32 to make left and right feeding for it
The knife bar feed arrangement of motion, the right unit head 32 is symmetrical arranged with left unit head 31；
Positioning clamping device 38, the positioning and fixation for workpiece；
Tool changing device 50, for forming cutter 34 to be inserted in differential carrier body and the taking-up from differential carrier body.
Preferably, first cutter is two, and one is disposed in proximity at the left end of differential casing 10, and another sets
It is disposed adjacent at the right-hand member of differential casing 10.
As shown in figure 5, traditional differential casing bearings at both ends installation position Excircle machining lathe process differential casing two
Bowlder outside end bearing installation position, one end periphery of differential casing is clamped and using cutter to differential mechanism using scroll chuck 16
The bearing installation position of the other end of housing carries out Excircle machining, turns around to carry out secondary clamping after completion of processing, reprocesses the other end,
Thus, one be can not be while processing two ends, efficiency is low；Two is the axiality and beating degree that can cause two ends using this traditional method
Precision is low, or even does not reach use requirement, and percent defective is high.
The differential casing bearings at both ends installation position Excircle machining lathe of the application is due to from differential casing 10
Positioned and carry out the two ends of differential casing using two the first cutters being fixed on knife rest to add simultaneously at heart hole 15
Work, thus it is high in machining efficiency, and due to being clamped again, the cylindrical time processing in bearings at both ends installation position of differential casing
Complete, as long as therefore two the first cutters are fixed on knife rest, plus two the first cutters of man-hour can synchro-feed simultaneously, feeding
Amount is identical, and this also ensures that the cylindrical axiality in two bearings installation position is required.Herein it should be noted that the first cutter,
The drive mechanism of knife rest and knife rest adopts traditional stock-removing machine cutter and knife rest, unique except for the difference that the first cutter
For two and it is fixed on different knife rests and two the first cutters mutually separate.
Preferably, the tool changing device 50 includes：
Slide rail 35, it is installed on the second fuselage 30；
Slide block 36, it can horizontally slip under cylinder promotion along slide rail 35；
First tool changing cylinder 37, its cylinder barrel and the Joint of slide block 36, the first tool changing cylinder 37 is two, is set side by side
Put；
Changing knife rod 50-2, its one end is connected with the piston rod of the first tool changing cylinder 37, and the other end is connected with forming cutter 34；
Second tool changing cylinder 50-1, its cylinder barrel and the Joint of the second fuselage 30, its piston rod is connected with slide block 36.
When needing tool changing in the course of processing, processing stops, and first slide block 36 is in the second tool changing cylinder 50-1 pulling force lower edge slide rails
35 move to part tool change position, and one of changing knife rod 50-2 enters differential casing 10 under the thrust of the first tool changing cylinder 37
Neutralization forming cutter 34 connects, and two unit heads are return, and changing knife rod is exited with the forming cutter changed.At this moment slide block is moved to down
One tool change position, another changing knife rod with need to forming cutter protrude into part, two unit heads reaches, bar portion is stretched
Go out, connect with forming cutter into part, changing knife rod and forming cutter disengaging are exited, and unit head drives forming cutter rotation, starts cutting
Processing, whole motion flow is automatically performed by control system.
As shown in fig. 6, traditional differential casing internal gear installs spherical cambered surface lathe for machining (it is vertical machine) processing
When differential casing internal gear installs spherical cambered surface, need first knife bar to be stretched in differential casing 10, differential casing 10 is used
After fixture is fixed, forming cutter 34 is assembled manually on main shaft, knife bar is rotated, forming cutter 34 first installs ball to housing internal gear
Cambered surface is processed, and lower spherical cambered surface is then installed to housing internal gear and is processed, therefore：First, efficiency is low；2nd, due to processing shell
When in vivo gear installs spherical cambered surface under spherical cambered surface and the installation of housing internal gear, the brachium of knife bar is different, and amount of deflection is different, therefore processing
Housing internal gear install spherical cambered surface position degree and symmetry tolerance it is big；3rd, people's frock knife tool changing is needed, it is laborious time-consuming, easily occur
Security incident.
The differential casing internal gear of the application installs spherical cambered surface lathe for machining using left unit head 31 and right unit head 32
Linkage is installed spherical cambered surface to differential casing internal gear and carries out processing simultaneously, and is carried out certainly using tool changing device 50 and control system
Dynamic dress knife and withdrawing, high in machining efficiency without the need for artificial tool changing, the arbor stiffness of left unit head 31 and right unit head 32 is good, processing
Stable accuracy, spherical cambered surface dimensional accuracy, position degree and symmetry tolerance are little.
As shown in Figure 10, it is preferred that the hydraulic expanding core positioner 21 includes：Lathe terminal pad 21-1, pull bar 21-2,
First locating shaft 21-3, locking nut 21-4, oil cylinder pull bar 21-5, fixed disk 21-6, expansion sleeve 21-7 and pull bar flange 21-8,
Lathe terminal pad 21-1, fixed disk 21-6 and the first locating shaft 21-3 be fixed in together and with the Joint of main shaft 24, it is described
Oil cylinder pull bar 21-5 is slidably connected with lathe terminal pad 21-1, and the pull bar flange 21-8 is affixed with oil cylinder pull bar 21-5, described
Pull bar 21-2 is affixed with pull bar flange 21-8, and the locking nut 21-4 is threadedly connected to the right-hand member of pull bar 21-2, the tensioner
Set 21-7 is set on pull bar 21-2 and between the first locating shaft 21-3 and locking nut 21-4, outside the expansion sleeve 21-7
Footpath can expand or shrink, and the expansion sleeve 21-7 is located in the centre bore 15 of differential casing 10.
Wherein lathe terminal pad and fixed disk connect with lathe, act the effect of being fixedly connected.First locating shaft is part positioning,
Centering center, during work, is first put in the centre bore 15 of differential casing at the expansion sleeve of non-spreading, and rolling center 23 holds out against difference
The fast device housing other end, activate switch, oil cylinder effect, oil cylinder pull bar 21-5 drives and moved after pull bar 21-2, makes expansion sleeve 21-7 rise
Open, the centre bore 15 of stretching differential casing is positioned and clamped.At this moment start processing, after processing, start valve switch, oil cylinder
Pull bar drives pull bar extension, expansion sleeve retraction, rolling center 23 to unclamp, and removes the part for processing.
As shown in figure 11, it is preferred that the positioning clamping device 38 includes alignment pin 38-1, the second locating shaft 38-2, liquid
Compressing cylinder 38-3, mechanical hand 38-4 and supporting 38-5, the alignment pin 38-1, the cylinder barrel of hydraulic jack 38-3, the second locating shaft
38-2 and supporting 38-5 are fixed on the second fuselage 30, and the top of the piston rod of the hydraulic jack 38-3 is with mechanical hand 38-4's
First end is hinged, and the supporting 38-5 and mechanical hand 38-4 is hinged, and second end of the mechanical hand 38-4 is pressed in differential mechanism
On housing 10.
The effect of alignment pin 38-1 and the second locating shaft 38-2 is to be put into and set to part positioning, centering Working position, part
After standby frock is positioned, stretched out by the piston rod of programme-control hydraulic jack 38-3, moved in the first end of mechanical hand 38-4, machinery
Second top of handss 38-4 moves down compressing component.After processing, the piston rod of hydraulic jack 38-3 is retracted, and the of mechanical hand 38-4
Move on two tops, pressure head unclamps, take out part.
Using above-mentioned automobile differential housing system of processing process differential casing method, it is characterised in that include as
Lower step：
A) the semi-finished product differential casing 10 with centre bore 15 is got out；
B) the hydraulic expanding core positioner 21 of differential casing bearings at both ends installation position Excircle machining lathe 100 is through at into difference
In fast device housing left end centre bore 15, with hand rest differential casing is lived；
C) cylinder thrust makes the rolling center 23 of tailstock 22 peak in differential casing right-hand member centre bore 15, holds out against part,
The hydraulic expanding core positioner spreading of differential casing left end is so as to positioning and clamp differential casing 10；
D) main shaft 24 is rotated using main driving device, feeds the first cutter, make two the first cutters simultaneously to differential carrier
Body 10 is cut, so that differential casing bearings at both ends installation position is cylindrical while shaping；
E) differential casing after cutting is taken from differential casing bearings at both ends installation position Excircle machining lathe 100
Under, and differential casing is fixed on into differential casing internal gear installation spherical cambered surface lathe for machining using positioning clamping device 38
On 200；
F) forming cutter 34 is respectively arranged on the changing knife rod 50-2 of tool changing device 50；
G) slide block 36 is made to reach setting position using the second tool changing cylinder 50-1 thrusts；
H) forming cutter 34 is inserted in differential casing by differential carrier body side surface macropore 14 using changing knife rod 50-2, it is left
Unit head 31 and right unit head 32 move forward, knife bar is stretched in differential carrier body by differential carrier body side surface aperture 13 and and into
Type knife 34 is connected, and then changing knife rod 50-2 and forming cutter depart from and exit；
I) lathe starts, and left unit head 31 and right unit head 32 drive the rotation processing differential casing internal gear of forming cutter 34
Spherical cambered surface is installed；
J) completion of processing, left unit head 31 and the rotation of right unit head 32 stop, and changing knife rod 50-2 protrudes into part neutralization
Forming cutter 34 is connected；
K) knife bar and forming cutter of left unit head 31 and right unit head 32 departs from, and knife bar passes through differential carrier body side surface aperture
13 exit from housing, and changing knife rod 50-2 returns original position with forming cutter 34, and positioning clamping device 38 unclamps differential casing 10,
The differential casing for processing is installed from gear and is removed on spherical cambered surface lathe for machining 200.
The application Jing scene processing part experiment, it is easy to operate.Machining accuracy is high, two ends concentricity tolerance after part processing
In 0.03 millimeter of ￠, at 0.05 millimeter, position degree and symmetry tolerance are accorded with completely spherical cambered surface dimensional accuracy below 0.06 millimeter
Close part performance to require.After differential case assembly assembling car load, Jing many experiments are determined, and noise is little, pinion rotation spirit
It is living, transmission efficiency, long service life.
The invention is not restricted to above-mentioned specific embodiment, all any changes done based on the present invention or modification belong to this
Bright claimed scope.
Claims (6)
1. a kind of automobile differential housing system of processing, it is characterised in that：It is mainly by differential casing bearings at both ends installation position
Excircle machining lathe (100), differential casing internal gear install spherical cambered surface lathe for machining (200) and control system composition；
The differential casing bearings at both ends installation position Excircle machining lathe (100) includes：
First fuselage (20)；
Main shaft (24), for driving workpiece to rotate, thereon with can be carried out by the centre bore (15) to differential casing (10)
Hole inner support fixes hydraulic expanding core positioner (21) of workpiece；
Pneumatic tailstock (22), thereon with the rolling center (23) for top tight workpiece, the free end of the rolling center (23)
For taper, the rolling center (23) rotates with tailstock (22) and is connected；
First cutter, for cutting workpiece, it passes through knife rest and is connected on the first fuselage (20)；
The differential casing internal gear installs spherical cambered surface lathe for machining (200) to be included：
Second fuselage (30)；
Left unit head (31), for driving forming cutter (34) to rotate, there is the knife bar work left and right that can make left unit head (31) to enter for it
To the knife bar feed arrangement of motion；
Right unit head (32), for driving forming cutter (34) to rotate, there is the knife bar work left and right that can make right unit head (32) to enter for it
To the knife bar feed arrangement of motion, the right unit head (32) is symmetrical arranged with left unit head (31)；
Positioning clamping device (38), the positioning and fixation for workpiece；
Tool changing device (50), for forming cutter (34) to be inserted in differential carrier body and the taking-up from differential carrier body.
2. a kind of automobile differential housing system of processing according to claim 1, it is characterised in that：First cutter is two
One is disposed in proximity at the left end of differential casing (10), another right-hand member for being disposed in proximity to differential casing (10)
Place, two the first cutters are fixed on different knife rests.
3. a kind of automobile differential housing system of processing according to claim 2, it is characterised in that：The tool changing device (50)
Including：
Slide rail (35), it is installed on the second fuselage (30)；
Slide block (36), it can horizontally slip under cylinder promotion along slide rail (35)；
First tool changing cylinder (37), its cylinder barrel and slide block (36) Joint, the first tool changing cylinder (37) is two, side by side
Arrange；
Changing knife rod (50-2), its one end is connected with the piston rod of the first tool changing cylinder (37), and the other end is connected with forming cutter (34)
Connect；
Second tool changing cylinder (50-1), its cylinder barrel and the second fuselage (30) Joint, its piston rod is connected with slide block (36).
4. a kind of automobile differential housing system of processing according to Claims 2 or 3, it is characterised in that：The hydraulic expanding core
Positioner (21) includes：Lathe terminal pad (21-1), pull bar (21-2), the first locating shaft (21-3), locking nut (21-4),
Oil cylinder pull bar (21-5), fixed disk (21-6), expansion sleeve (21-7) and pull bar flange (21-8), the pull bar flange (21-8) with
Oil cylinder pull bar (21-5) is affixed, and the pull bar (21-2) is affixed with pull bar flange (21-8), locking nut (21-4) screw thread
The right-hand member of pull bar (21-2) is connected to, the expansion sleeve (21-7) is set on pull bar (21-2) and positioned at the first locating shaft (21-
3) and locking nut (21-4) between, expansion sleeve (21-7) external diameter can expand or shrink, and the expansion sleeve (21-7) is located at
In the centre bore (15) of differential casing (10).
5. a kind of automobile differential housing system of processing according to claim 4, it is characterised in that：The positioning clamping device
(38) including alignment pin (38-1), the second locating shaft (38-2), hydraulic jack (38-3), mechanical hand (38-4) and supporting (38-
5), the alignment pin (38-1), the cylinder barrel of hydraulic jack (38-3), the second locating shaft (38-2) and supporting (38-5) is fixed in the
On two fuselages (30), top and the first end of mechanical hand (38-4) of the piston rod of the hydraulic jack (38-3) are hinged, described
Supporting (38-5) is hinged with mechanical hand (38-4), and the second end of the mechanical hand (38-4) is pressed in differential casing (10)
On.
6. it is a kind of using automobile differential housing system of processing as claimed in claim 3 process differential casing method, its
It is characterised by, comprises the steps：
A) the semi-finished product differential casing (10) with centre bore (15) is got out；
B) hydraulic expanding core positioner (21) of differential casing bearings at both ends installation position Excircle machining lathe (100) is positioned at
In differential casing left end centre bore (15), with hand rest differential casing is lived；
C) Pneumatic tailstock (22) extension makes the rolling center (23) of tailstock (22) peak at differential casing right-hand member centre bore (15) place,
Hold out against housing, hydraulic expanding core positioner (21) spreading of differential casing left end is so as to positioning and press from both sides differential casing (10)
Tightly；
D) main shaft (24) is rotated using main driving device, feeds the first cutter, make two the first cutters simultaneously to differential casing
(10) cut, so that differential casing bearings at both ends installation position is cylindrical while shaping；
E) differential casing after cutting is removed from differential casing bearings at both ends installation position Excircle machining lathe (100),
And differential casing is fixed on into differential casing internal gear installation spherical cambered surface lathe for machining using positioning clamping device (38)
(200) on；
Forming cutter (34) f) is respectively arranged in the changing knife rod of tool changing device (50)（50-2）On；
G) slide block (36) is made to reach tool change position using the second tool changing cylinder (50-1) thrust；
H) changing knife rod is put forming cutter (34) by differential carrier body side surface macropore (14) using the first tool changing cylinder (37) thrust
In entering differential casing, the knife bar of left unit head (31) and right unit head (32) is stretched into by differential carrier body side surface aperture (13)
In differential carrier body, knife bar and forming cutter (34) are connected, and differential mechanism is exited in the changing knife rod of tool changing device and forming cutter disengaging
Housing；
I) lathe is opened, and left unit head (31) and right unit head (32) rotarily drive forming cutter (34) processing differential casing internal tooth
Wheel installs spherical cambered surface；
J) completion of processing, left unit head (31) and right unit head (32) rotation stop, and the first tool changing cylinder (37) promotes changing knife rod
Into in differential casing, changing knife rod and forming cutter (34) are connected；
K) knife bar and forming cutter of left unit head (31) and right unit head (32) departs from, by differential carrier body side surface aperture (13)
Exit from differential casing, the changing knife rod of tool changing device returns original position with forming cutter from differential carrier body side surface macropore, it is fixed
Differential casing (10) is unclamped in position clamping device (38), and the differential casing for processing is installed into spherical cambered surface lathe for machining from gear
(200) remove on.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710279881.9A CN107116234B (en) | 2014-09-05 | 2014-09-05 | A kind of processing method of differential casing |
| CN201710279824.0A CN106964789B (en) | 2014-09-05 | 2014-09-05 | A kind of system and processing method for processing automobile differential shell spherical cambered surface |
| CN201710279883.8A CN107127356B (en) | 2014-09-05 | 2014-09-05 | A kind of differential casing machining center |
| CN201410460520.0A CN104275495B (en) | 2014-09-05 | 2014-09-05 | Machining system and machining method of automobile differential shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410460520.0A CN104275495B (en) | 2014-09-05 | 2014-09-05 | Machining system and machining method of automobile differential shell |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710279883.8A Division CN107127356B (en) | 2014-09-05 | 2014-09-05 | A kind of differential casing machining center |
| CN201710279881.9A Division CN107116234B (en) | 2014-09-05 | 2014-09-05 | A kind of processing method of differential casing |
| CN201710279824.0A Division CN106964789B (en) | 2014-09-05 | 2014-09-05 | A kind of system and processing method for processing automobile differential shell spherical cambered surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104275495A CN104275495A (en) | 2015-01-14 |
| CN104275495B true CN104275495B (en) | 2017-05-10 |
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|---|---|---|---|
| CN201710279824.0A Active CN106964789B (en) | 2014-09-05 | 2014-09-05 | A kind of system and processing method for processing automobile differential shell spherical cambered surface |
| CN201710279881.9A Active CN107116234B (en) | 2014-09-05 | 2014-09-05 | A kind of processing method of differential casing |
| CN201710279883.8A Active CN107127356B (en) | 2014-09-05 | 2014-09-05 | A kind of differential casing machining center |
| CN201410460520.0A Active CN104275495B (en) | 2014-09-05 | 2014-09-05 | Machining system and machining method of automobile differential shell |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710279824.0A Active CN106964789B (en) | 2014-09-05 | 2014-09-05 | A kind of system and processing method for processing automobile differential shell spherical cambered surface |
| CN201710279881.9A Active CN107116234B (en) | 2014-09-05 | 2014-09-05 | A kind of processing method of differential casing |
| CN201710279883.8A Active CN107127356B (en) | 2014-09-05 | 2014-09-05 | A kind of differential casing machining center |
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| Country | Link |
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| CN (4) | CN106964789B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708463A (en) * | 2015-03-17 | 2015-06-17 | 青阳县鑫安特汽车零配件有限公司 | Transverse hole machining device for automobile differential mechanism |
| CN104708462A (en) * | 2015-03-17 | 2015-06-17 | 青阳县鑫安特汽车零配件有限公司 | Machining device for automobile differential mechanism |
| CN108000399B (en) * | 2017-12-27 | 2019-08-16 | 重庆英拓机电设备有限公司 | A kind of positioning device for differential mechanism production |
| CN108296725B (en) * | 2018-04-16 | 2020-04-28 | 杭州吉利机械有限公司 | Split type differential mechanism shell inner expansion processing method |
| CN108817873B (en) * | 2018-08-20 | 2020-07-28 | 重庆市璧山区隆翔机械有限公司 | Differential housing hemispherical surface machining process |
| CN112238224B (en) * | 2020-11-03 | 2021-12-14 | 福州真兰水表有限公司 | Water meter metal shell casting forming method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104275495A (en) | 2015-01-14 |
| CN107116234A (en) | 2017-09-01 |
| CN107127356A (en) | 2017-09-05 |
| CN106964789A (en) | 2017-07-21 |
| CN107116234B (en) | 2019-01-29 |
| CN106964789B (en) | 2019-10-08 |
| CN107127356B (en) | 2019-01-11 |
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