CN109746734A - A kind of differential spider structure - Google Patents
A kind of differential spider structure Download PDFInfo
- Publication number
- CN109746734A CN109746734A CN201711075972.7A CN201711075972A CN109746734A CN 109746734 A CN109746734 A CN 109746734A CN 201711075972 A CN201711075972 A CN 201711075972A CN 109746734 A CN109746734 A CN 109746734A
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- China
- Prior art keywords
- core axle
- locating piece
- differential spider
- positioning
- pedestal
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- 241000239290 Araneae Species 0.000 title claims abstract description 40
- 238000003754 machining Methods 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 230000000875 corresponding Effects 0.000 claims description 5
- 239000002828 fuel tank Substances 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000001131 transforming Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The present invention discloses a kind of differential spider clamp for machining, including pedestal, locating piece is set on pedestal, positioning block bottom sets the central axis being connected with pedestal, locating piece upper end center position sets core axle hole, the lower end of positioning core axle slideably fits in core axle hole, positioning core axle lower end center sets spring base hole and with compressed spring, the compressed spring other end withstands on core axle hole bottom, positioning core axle lower end outside face sets deep gouge, locating piece lateral surface is fixed with stop screw, and stop screw head and deep gouge cooperate, and positioning core axle upper end is cylindrical structure；The nearly periphery position in the upper surface of locating piece sets counterbore, sells in counterbore with clamping, and the circumferential pin that clamps passes through the fastening screw locking set on locating piece side wall；The pressing device of differential spider is correspondingly provided with above locating piece.The present invention is unrestricted for differential spider processing space；Achievable four axle journal of clamped one time is all processed, and work efficiency is improved；Transformation of criterion number is reduced, positioning accuracy is improved.
Description
Technical field
The invention belongs to clamp arts, and in particular to a kind of for processing the fixture of differential spider.
Background technique
The machining accuracy of differential spider is directly related to the transmission accuracy and service life of star coupling, processing
Precision and fixture design and manufacture that horizontal close is related, and the prior art need to pass through three process mostly, first use V-type locating piece
End face milling drill centers is positioned with neck outside four axle journal blanks, then with the top centre bore and end face, the anti-sliding stop of spike pulling of withstanding in number
Smart car axle journal on lathe is controlled, this needs auxiliary conversion four direction by hand；Because when end face milling and drill centers position degree and hang down
Straight degree deviation is larger, need to increase correcting process to be calibrated to requirement as defined in drawing.
Such as Chinese Patent Application No. is 201110067933.9, the patent of invention Shen of entitled " Universal joint pin machining fixture "
Please, a kind of Universal joint pin machining fixture is disclosed comprising frame body, hold-down devices, center positioning device, upper rotary table plate, axle journal are fixed
Device, integrated locating device and stationary platen, hold-down devices are connected at the top of frame body, and stationary platen is connected to frame body bottom, in
Heart positioning device is vertically connected on the center of stationary platen, and upper turntable sleeve-board is mutually embedding with stationary platen on center positioning device,
The fixed device of axle journal is arranged on upper rotary table plate.This Universal joint pin machining fixture is vertically arranged a centralized positioning on stationary platen
Upper rotary table plate is arranged on center positioning device for device, and upper rotary table plate and stationary platen are mutually embedding, are then arranged on upper rotary table plate again
Axle journal fixes device；Its axle journal fixes device application V-shaped cushion block, therefore axle journal end face can only be just processed after clamping, and cannot
The neck outer diameter of smart car axle journal, four axle journals need to increase No. four processing that clamping could complete end face and axle journal, not only deposit simultaneously
In process is tedious the low deficiency of work efficiency, there is also because transformation positioning datum and repeating to clamp so that clamping force unevenness generates error
Defect.
Summary of the invention
The technical problem to be solved in the invention is to overcome the Universal joint pin machining fixture of the prior art that can not adapt to differential mechanism
The defect of blank of cross axle part axle journal neck outer diameter processing, the smart car of four axle journals can be completed at the same time, split by providing a kind of clamped one time
End face, drill centers, chamfering, circular arc processing differential spider clamping device.
The purpose of the present invention is what is be achieved by following technical proposals: a kind of differential spider clamp for machining, packet
Pedestal is included, locating piece is equipped on pedestal, the lower end of locating piece is equipped with the central axis being fixedly connected with pedestal, the upper end of locating piece
Centre is equipped with core axle hole, and the lower end of positioning core axle slideably fits in core axle hole, the centre of positioning core axle lower end
Equipped with spring base hole, it is furnished with compressed spring in spring base hole, the other end of compressed spring withstands on core axle hole bottom, under positioning core axle
The lateral surface at end is equipped with deep gouge, and locating piece lateral surface is fixed with stop screw, and the head of stop screw and deep gouge cooperate, locating core
The upper end of axis is the cylindrical structure being adapted to differential spider centre bore；The upper surface of locating piece is equipped with close to periphery position
Counterbore, circumferentially clamps pin equipped with differential spider in counterbore, and the circumferential pin that clamps passes through the fastening screw for being set to locating piece side wall
Locking；The pressing device of differential spider is correspondingly provided with above locating piece.
Positioning block bottom central axis is securely connect by pedestal with lathe, and positioning core axle and locating piece transition fit can simultaneously be made
Relative movement up and down, makes positioning core axle upward always by compressed spring, by the stop screw that is fixed on the positioning block come
The traveled distance of positioning core axle is controlled, while the two effectively being coupled integrally；Fastening screw is fixed on positioning for pin is clamped
On block；The centre bore of differential spider is covered in the upper end of positioning core axle, the periphery position lower surface of centre bore is pressed on folder
Then pressing device is pressed in upper surface and the locking at centre bore periphery position by the top surface tightly sold, with that can be to cross axle
An axle journal carry out smart car, split the processing of end face, drill centers, chamfering and circular arc.
Preferably, the central axis is step structure, lower section is cylindrical body, and upper section is cydariform cylinder, swelled column
Body is made of the cylindrical body for symmetrically clipping two sides.
Preferably, the cylindrical structure periphery of positioning core axle upper end, which is equipped with, imports cone angle.
Preferably, pressing device includes the portal frame being fixedly connected with pedestal, the crossbeam of portal frame is every sky across fixed
The top of position mandrel, the intermediate position of crossbeam are equipped with top-pressure mechanism, and the lower end of top-pressure mechanism connects pressure end, pressure end and positioning
Mandrel is corresponding.
Preferably, top-pressure mechanism is made of the oil cylinder for being connected to position among the crossbeam of portal frame, the piston rod of oil cylinder
It is connect with pressure end.
Preferably, being equipped with hydraulic control one-way valve in the control loop of oil cylinder locks circuit, the hydraulic control one-way valve is locked back
Road includes three position four-way electromagnetic valve in the circuit, the hydraulic control one-way valve concatenated with the oil inlet pipe of oil cylinder, wherein 3-position 4-way
The middle position connection type of solenoid valve is that the import of hydraulic control one-way valve and control port are connected to fuel tank.
Preferably, top-pressure mechanism includes the nut for being connected to position among portal frame crossbeam, it be furnished with screw rod, spiral shell in nut
Club head is connect with pressure end.
Preferably, pressing device is equipped with press cushion block, the top for pressing cushion block is disc-shaped structure, is pressed under cushion block
Portion is cylindric centering shaft part, and centering shaft part is adapted to the centre bore of differential spider, and press cushion block liner is under pressure end
Face.
Preferably, the counterbore base is equipped with the bottom outlet penetrated through with locating piece bottom, bottom diameter is less than counter bore hole diameters；
Position corresponding with the bottom outlet is equipped with the through-hole that diameter is greater than the bottom diameter on pedestal.
The beneficial effects of the present invention are:
1, it is clamped for differential spider centre bore periphery, the axle journal processing space that not will cause differential spider is limited
System；
2, whole manufacturing procedures of the clamped one time with regard to achievable four axle journal；
3, simplify technique, improve work efficiency；
4, transformation of criterion number is greatly decreased, improves positioning accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention；
Fig. 2 is a kind of locating piece schematic diagram of embodiment；
In figure, locating piece 2；Central axis 21；Cylindrical body 211；Cydariform cylinder 212；Core axle hole 22；Counterbore 23；Fastening screw 24；It is fixed
Position mandrel 3；Spring base hole 31；Compressed spring 4；Stop screw 5；Clamp pin 6；Differential spider 9.
Specific embodiment
The invention will be further described with specific embodiment with reference to the accompanying drawing.
Embodiment 1: as shown in Figure 1 and Figure 2, a kind of differential spider clamp for machining, including pedestal, it is equipped on pedestal
Locating piece 2, the lower end of locating piece 2 are equipped with the central axis 21 being fixedly connected with pedestal, and the upper end center position of locating piece 2 is equipped with core
Axis hole 22, the lower end of positioning core axle 3 slideably fit in core axle hole 22, and the centre of 3 lower end of positioning core axle is equipped with spring
Bore 31, is furnished with compressed spring 4 in spring base hole 31, and the other end of compressed spring 4 withstands on the bottom of core axle hole 22, positioning core axle
The lateral surface of 3 lower ends is equipped with deep gouge, and deep gouge is annular groove, and 2 lateral surface of locating piece is fixed with stop screw 5, the head of stop screw 5
Cooperate with deep gouge, the upper end of positioning core axle 3 is the cylindrical structure being adapted to 9 centre bore of differential spider；Locating piece 2 it is upper
End face is equipped with counterbore 23 close to periphery position, is furnished with the circumferential clamping pin 6 of differential spider 9 in counterbore 23, clamps pin 6 by setting
It is locked in the fastening screw 24 of 2 side wall of locating piece；The pressing device of differential spider is correspondingly provided with above locating piece 2.
2 lower end central axis of locating piece is securely connect by pedestal with lathe, and positioning core axle 3 and 2 transition fit of locating piece are simultaneously
It can make to relatively move up and down, make positioning core axle 3 upwards, pass through the limit being fixed on locating piece 2 always by compressed spring 4
Screw 5 controls the traveled distance of positioning core axle 3, while the two effectively being coupled integral.Fastening screw 24 will clamp pin 6
It is fixed on locating piece 2；The centre bore of differential spider 9 is covered under the upper end of positioning core axle 3, the periphery position of centre bore
Surface is pressed on the top surface for clamping pin 6, then pressing device is pressed in upper surface and the locking at centre bore periphery position, with that
The processing that smart car can be carried out to an axle journal of differential spider, split end face, drill centers, chamfering and circular arc.
Central axis 21 is step structure, and lower section is cylindrical body 211, and upper section is cydariform cylinder 212, cydariform cylinder 212
Cylindrical body by symmetrically clipping two sides is constituted, and cydariform cylinder 212 can prevent locating piece 2 from rotating, and 211 bottom of cylindrical body is processing
When once have centre bore, processing will complete when centre bore will be changed to screw hole again, locating piece 2 can be hung with screw by the screw hole
Tightly on pedestal, as shown in Figure 2.
The cylindrical structure periphery of 3 upper end of positioning core axle, which is equipped with, imports cone angle, to be convenient to the center of differential spider
Hole is smoothly covered in the upper end of positioning core axle.
Pressing device includes the portal frame being fixedly connected with pedestal, and the crossbeam of portal frame is every sky across in positioning core axle 3
Top, the intermediate position of crossbeam are equipped with top-pressure mechanism, and top-pressure mechanism is by being connected to the oil cylinder structure at position among the crossbeam of portal frame
At the piston rod of oil cylinder is connect with pressure end, and pressure end is corresponding with positioning core axle 3；Hydraulic control is equipped in the control loop of oil cylinder
Check valve locks circuit, and hydraulic control one-way valve locking circuit includes the three position four-way electromagnetic valve in circuit, the oil inlet with oil cylinder
The hydraulic control one-way valve of pipe concatenation, wherein the middle position connection type of three position four-way electromagnetic valve is import and the control oil of hydraulic control one-way valve
Mouth is connected to fuel tank, and when three position four-way electromagnetic valve is in middle position, hydraulic control one-way valve is closed rapidly, and cylinder upper cavity oil is by fluid-control one-way
Valve locking, piston cannot move upwards, piston rod by pressure end down dieback to clamp differential spider 9.
When three position four-way electromagnetic valve is controlled is in left position, hydraulic control one-way valve is open-minded, cylinder upper cavity oil oil inlet, while cavity of resorption returns
Oil, piston push down on pressure end and clamp differential spider 9 down；When three position four-way electromagnetic valve is in right position, hydraulic control list
It is open-minded by hydraulic control to valve, oil cylinder cavity of resorption oil inlet, while epicoele, through hydraulic control one-way valve oil return, piston is pulled up pressure end up
Differential spider 9 is unclamped in movement.
Pressing device is equipped with press cushion block, and the top for pressing cushion block is disc-shaped structure, and the lower part for pressing cushion block is cylinder
Shape centering shaft part, centering shaft part are adapted to the centre bore of differential spider 9, and press cushion block liner is below pressure end；Deep gouge
Length be less than or equal to the centre bore height of differential spider 9 and subtract stop screw 5 head diameter and determine with press cushion block
The sum of mandrel section height.
23 bottom of counterbore is equipped with the bottom outlet penetrated through with 2 bottom of locating piece, and bottom diameter is less than 23 diameter of counterbore, matches in bottom outlet
If mandril；Bottom outlet is also possible to screw hole and clamps pin 6 for rising with screw, mandril or screw, if clamping 6 apical side height of pin
Superelevation, which can revolve low screw and press clamping pin 6, to be adjusted, if clamped, 6 apical side height of pin is relatively low can to revolve high screw to folder
Tight pin 6 is adjusted, and then locks fastening screw 24.
Embodiment 2: top-pressure mechanism includes the nut for being connected to position among portal frame crossbeam, is furnished with screw rod, spiral shell in nut
Club head is connect with pressure end, and nut and screw flight are trapezoidal or zigzag, remaining structure is the same as embodiment 1.
The present invention can be used as fixture application in the processing of various cross axles, have clamped one time with regard to the complete of achievable four axle journal
The advantages of portion's manufacturing procedure simplifies technique, improves work efficiency, reduce transformation of criterion number, improve positioning accuracy, the technology of this field
If personnel make simple modifications or substitutions to foregoing invention content, such change is not to be regarded as a departure from model of the invention
Enclose, it is all those skilled in the art is obviously modified in this way be included within the scope of the claims of the invention it
It is interior.
Claims (9)
1. a kind of differential spider clamp for machining, including pedestal, characterized in that locating piece is equipped on pedestal, locating piece
Lower end is equipped with the central axis being fixedly connected with pedestal, and the upper end center position of locating piece is equipped with core axle hole, the lower end of positioning core axle
It slideably fits in core axle hole, the centre of positioning core axle lower end is equipped with spring base hole, is furnished with compression bullet in spring base hole
Spring, the other end of compressed spring withstand on core axle hole bottom, and the lateral surface of positioning core axle lower end is equipped with deep gouge, and locating piece lateral surface is solid
Surely there is stop screw, the head of stop screw and deep gouge cooperate, and the upper end of positioning core axle is suitable with differential spider centre bore
The cylindrical structure matched；The upper surface of locating piece is equipped with counterbore close to periphery position, and it is circumferential to be furnished with differential spider in counterbore
Pin is clamped, circumferential clamping pin is locked by being set to the fastening screw of locating piece side wall；Differential mechanism ten is correspondingly provided with above locating piece
The pressing device of word axis.
2. differential spider clamp for machining according to claim 1, characterized in that the central axis is ladder-like knot
Structure, lower section are cylindrical body, and upper section is cydariform cylinder, and cydariform cylinder is made of the cylindrical body for symmetrically clipping two sides.
3. differential spider clamp for machining according to claim 2, characterized in that the cylindrical knot of positioning core axle upper end
Structure periphery, which is equipped with, imports cone angle.
4. differential spider clamp for machining according to claim 3, characterized in that pressing device includes fixing with pedestal
The portal frame of connection, for the crossbeam of portal frame every sky across the top in positioning core axle, the intermediate position of crossbeam is equipped with top-pressure mechanism,
The lower end of top-pressure mechanism connects pressure end, and pressure end is corresponding with positioning core axle.
5. differential spider clamp for machining according to claim 4, characterized in that top-pressure mechanism is by being connected to portal frame
Crossbeam among the oil cylinder at position constitute, the piston rod of oil cylinder connect with pressure end.
6. differential spider clamp for machining according to claim 5, characterized in that be equipped with liquid in the control loop of oil cylinder
It controls check valve and locks circuit, hydraulic control one-way valve locking circuit includes three position four-way electromagnetic valve and oil cylinder in circuit
Oil inlet pipe concatenation hydraulic control one-way valve, wherein the middle position connection type of three position four-way electromagnetic valve be hydraulic control one-way valve import and
Control port is connected to fuel tank.
7. differential spider clamp for machining according to claim 4, characterized in that top-pressure mechanism includes being connected to gantry
The nut at position among frame crossbeam is furnished with screw rod in nut, and screw head is connect with pressure end.
8. according to differential spider clamp for machining described in claim 5 or 6 or 7, characterized in that pressing device is equipped with press
Cushion block, the top for pressing cushion block is disc-shaped structure, and the lower part for pressing cushion block is cylindric centering shaft part, feel relieved shaft part and differential
The centre bore of device cross axle is adapted to, and press cushion block liner is below pressure end.
9. differential spider clamp for machining according to claim 8, characterized in that the counterbore base is equipped with and positioning
The bottom outlet of block bottom perforation, bottom diameter are less than counter bore hole diameters；Position corresponding with the bottom outlet is greater than equipped with diameter on pedestal
The through-hole of the bottom diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711075972.7A CN109746734A (en) | 2017-11-06 | 2017-11-06 | A kind of differential spider structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711075972.7A CN109746734A (en) | 2017-11-06 | 2017-11-06 | A kind of differential spider structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109746734A true CN109746734A (en) | 2019-05-14 |
Family
ID=66399829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711075972.7A Pending CN109746734A (en) | 2017-11-06 | 2017-11-06 | A kind of differential spider structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109746734A (en) |
-
2017
- 2017-11-06 CN CN201711075972.7A patent/CN109746734A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190514 |