CN208342405U - The hydraulic tracking centre rest of the small torque hydraulic motor driving of low speed - Google Patents
The hydraulic tracking centre rest of the small torque hydraulic motor driving of low speed Download PDFInfo
- Publication number
- CN208342405U CN208342405U CN201820917597.XU CN201820917597U CN208342405U CN 208342405 U CN208342405 U CN 208342405U CN 201820917597 U CN201820917597 U CN 201820917597U CN 208342405 U CN208342405 U CN 208342405U
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- Prior art keywords
- installation sleeve
- hydraulic
- hydraulic motor
- workpiece
- screw
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- 238000009434 installation Methods 0.000 claims abstract description 63
- 210000000078 claw Anatomy 0.000 claims abstract description 61
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 5
- 238000009432 framing Methods 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
A kind of hydraulic tracking centre rest of small torque hydraulic motor driving of low speed is provided, including pedestal, lower installation sleeve and upper installation sleeve are formed on pedestal, lower installation sleeve is connect by support frame with upper installation sleeve, rotational support has lower claw lever block on supporting framing front end face, it is equipped with lower hydraulic motor in lower installation sleeve and drives holding device, lower hydraulic motor driving holding device can be such that the rotation of lower claw lever block holds out against in workpiece surface, it is equipped with upper hydraulic motor in upper installation sleeve and drives holding device, upper hydraulic motor driving holding device can press against workpiece surface, with work pieces process diameter be gradually reduced and lower hydraulic motor driving holding device and upper hydraulic motor driving holding device can continue axial movement keep workpiece is held out against.The utility model carries out tracking to workpiece by the driving of hydraulic servo motor and holds out against, and prevents the deformation of longer class workpiece, and as work pieces process diameter is gradually reduced, can continually and steadily keep holding out against workpiece, improve the machining accuracy of workpiece.
Description
Technical field
The utility model category field of machining technology, and in particular to a kind of small torque hydraulic motor driving of low speed it is hydraulic with
Track centre frame.
Background technique
Numerical control external cylindrical grinding machine easily bends in the periphery of grinding slender rod type part or thin-walled tubes part
And deformation, machining accuracy are difficult to ensure.For the heavy-duty car rear axle of numerical control axle housing special purpose grinder grinding, which is ground position
For thin-wall tubular workpiece, and entire rear axle is asymmetric, therefore, must use hydraulic tracking centre rest in process.At present
The hydraulic tracking centre rest used on numerical control external cylindrical grinding machine is two hydraulic cylinders each by wedge, mandril and lever mechanism
Top tight workpiece, pressure size are controlled by adjusting cylinder pressure oil pressure size, the hydraulic tracking center of such structure
Structure is complicated for frame, and manufacture difficulty is big, inconvenient using adjustment.Moreover, at present both at home and abroad numerical control external cylindrical grinding machine use it is hydraulic with
Track centre frame is two pawls or three-jaw centre frame of oil cylinder driving, and when use must use a standard identical with workpiece final size
Part adjusts the support claw of centre frame, oil cylinder pressure size bad grasp when adjustment, especially for thin-wall tubular workpiece
Using being more difficult to adjust.It is therefore desirable to propose to improve.
Utility model content
The technical problem solved by the utility model is:to provide a kind of hydraulic tracking centers of the small torque hydraulic motor driving of low speed
Frame, the utility model carry out tracking to workpiece by the driving of two hydraulic servo motors and hold out against, and prevent the change of longer class workpiece
Shape, and as work pieces process diameter is gradually reduced, lower claw supporting block and dewclaw supporting block can continue to move, and can continually and steadily protect
It holds and workpiece is held out against, make the tracking pressure size of tracking center frame become to control very well, improve the machining accuracy of workpiece.
The technical solution adopted in the utility model: the hydraulic tracking centre rest of the small torque hydraulic motor driving of low speed, including
The pedestal being fixedly connected with platen face is formed with the lower installation sleeve arranged and be axially parallel to each other up and down on the pedestal
With upper installation sleeve, the lower installation sleeve is connect with upper installation sleeve by support frame, is rotated on support frame as described above front end face
It is supported by lower claw lever block, lower hydraulic motor is equipped in the lower installation sleeve and drives holding device, the lower hydraulic motor drives
Dynamic holding device, which moves along lower installation sleeve axis and holds out against end and press against lower claw lever block one end, rotates lower claw lever block
And lower claw lever block upper end is made to hold out against the side lower surface on workpiece close to process tool, it is equipped in the upper installation sleeve
Upper hydraulic motor drives holding device, and the upper hydraulic motor driving holding device is moved and held out against along upper installation sleeve axis
End presses against opposite with process tool side center surface on workpiece, with work pieces process diameter be gradually reduced and it is described under
Hydraulic motor driving holding device and upper hydraulic motor driving holding device can continue axial movement and keep holding out against workpiece.
Wherein, the lower hydraulic motor driving holding device includes that lower hydraulic servo motor, lower ball-screw and lower claw move
Moving sleeve, the lower claw moving sleeve sliding are placed on lower installation sleeve inner cavity front, and the lower ball-screw is fixed on lower installation
Sleeve rear portion and one end protrude into lower installation sleeve inner cavity and by lower guider screw and lower claw moving sleeve rear portion fixed guide
Fixed connection, the lower installation sleeve rear end is also fixedly connected with lower motor mount, under the lower hydraulic servo motor is fixed on
Motor mount rear portion, the lower hydraulic servo motor output end protrude into lower motor mount inner cavity and by lower coupler with
The connection of lower ball-screw rear end, the lower hydraulic servo motor drive lower ball screw turns, and the lower ball-screw will rotate
Being converted into axial linear movement driving lower claw moving sleeve, axially linear movement holds out against lower claw lever block, the lower claw lever block
It is rotatablely connected by lower claw shaft and support frame front, is equipped between the lower claw lever block lower side and supporting framing front end face
Make the extension spring of lower claw lever block reset, is fixed with lower claw supporting block on the face that the lower claw lever block is bonded with workpiece.
Further, the upper hydraulic motor driving holding device include upper hydraulic servo motor, upper ball-screw and on
Pawl moving sleeve, the dewclaw moving sleeve sliding are placed on installation sleeve inner cavity front, and the upper ball-screw is fixed on
Installation sleeve rear portion and one end are protruded into installation sleeve inner cavity and are led by upper guider screw and dewclaw moving sleeve rear portion
To being fixedly connected, the upper installation sleeve rear end is also fixedly connected with motor mount, and the upper hydraulic servo motor is fixed
In upper motor mount rear portion, the upper hydraulic servo motor output end is protruded into motor mount inner cavity and by upper shaft coupling
Device is connect with upper ball-screw rear end, ball screw turns in the upper hydraulic servo motor driven, and the upper ball-screw will
Axial linear movement driving dewclaw moving sleeve is converted into axially to move linearly workpiece pre-tightening, the dewclaw moving sleeve
Front end face is equipped with the dewclaw supporting block contacted with workpiece.
Further, pedestal lower part side is equipped with block, and the pedestal lower part other side is connected by holding screw
There is pressing plate.
The utility model compared with prior art the advantages of:
1, the driving in this programme by two hydraulic servo motors carries out workpiece to hold out against support, prevents longer class workpiece
Deformation, so that workpiece in whole process is kept certain rigidity, it is indeformable, improve the machining accuracy of workpiece；
2, in the lower hydraulic motor driving holding device in this programme and upper hydraulic motor driving holding device, with workpiece
Processing diameter be gradually reduced, under the stabilized driving of lower hydraulic servo motor and upper hydraulic servo motor, lower claw moving sleeve and
Dewclaw moving sleeve can continue to move axially, and enable the present apparatus to continue to keep holding out against workpiece, do not need in the prior art
The support of workpiece is adjusted using standard component, the tracking pressure size of tracking center frame is made to become to control very well, improve with
Track centre frame tracks the precision held out against；
3, the driving for being implemented in combination with tracking center frame that hydraulic servo motor and ball-screw are used in this programme, solves
The problem of structure is complicated for existing tracking center frame, processing difficulties, manufacturing cost are high and inconvenient debugging.
Detailed description of the invention
Fig. 1 is the structural front view of the utility model.
Specific embodiment
1 the embodiments of the present invention are described with reference to the accompanying drawing.
The hydraulic tracking centre rest of the small torque hydraulic motor driving of low speed, as shown in Figure 1, including solid with platen face
Surely the pedestal 1 connected, the 1 lower part side of pedestal are equipped with block, and the 1 lower part other side of pedestal is connected by holding screw 3
There is pressing plate 2, the block of 1 side of pedestal is stuck in one edge of platen face, and then tightening holding screw 3 makes pressing plate 2 be pressed in machine
Bed work top another side edge.
The lower installation sleeve 101 and upper installation sleeve 103 arranged and be axially parallel to each other up and down are formed on the pedestal 1,
The lower installation sleeve 101 is connect by support frame 102 with upper installation sleeve 103.Rotational support on 102 front of support frame as described above
There is lower claw lever block 11, lower claw lever block 11 is the L-type structure that bending place angle is obtuse angle, and 11 middle part of lower claw lever block is curved
It is rotatablely connected at folding by lower claw shaft 12 and 102 front of support frame, 11 lower side of lower claw lever block and support frame 102
The extension spring 14 for resetting lower claw lever block 11 is equipped between front end face, 11 upper end of lower claw lever block is bonded with workpiece 24
Face on lower claw supporting block 13 is fixed with by screw.It is equipped with the driving of lower hydraulic motor in the lower installation sleeve 101 and holds out against dress
4 are set, the lower hydraulic motor driving holding device 4, which moves along lower 101 axis of installation sleeve and holds out against end, presses against lower claw thick stick
11 lower end of bar block rotates lower claw lever block 11 around lower claw shaft 12, and makes the lower claw supporting block 13 of 11 upper end of lower claw lever block
Hold out against the side lower surface on workpiece 24 close to process tool 25.Specifically, the lower hydraulic motor drives holding device 4
Including lower hydraulic servo motor 5, lower ball-screw 8 and lower claw moving sleeve 10, the sliding of lower claw moving sleeve 10 is placed on down
In 101 inner cavity of installation sleeve, the lower ball-screw 8 is fixed on lower 101 rear portion of installation sleeve and one end protrudes into lower installation set
It is fixedly connected in 101 inner cavities of cylinder and by lower guider screw 9 with 10 rear portion of lower claw moving sleeve guiding, the lower installation sleeve
101 rear ends are also fixedly connected with lower motor mount 7, the lower motor mount 7 can directly with lower 101 rear end of installation sleeve
Face is fixedly connected, and can also be fixedly connected with the outer fixing seat of lower ball-screw 8, and the fixation to lower motor mount 7 can be achieved.
The lower hydraulic servo motor 5 is fixed on lower 7 rear portion of motor mount, and lower 5 output end of hydraulic servo motor protrudes into
It is connect up in 7 inner cavity of mounting base and by lower coupler 6 with lower 8 rear end of ball-screw, under the lower hydraulic servo motor 5 drives
Ball-screw 8 rotates, and the lower ball-screw 8 converts axial linear movement driving lower claw moving sleeve 10 axially directly for rotation
Line movement holds out against lower claw lever block 11.
It is equipped with upper hydraulic motor in the upper installation sleeve 103 and drives holding device 15, the upper hydraulic motor driving top
Tight device 15, which moves along upper 103 axis of installation sleeve and holds out against end, presses against side opposite with process tool 25 on workpiece 24
Hit exactly surface.Specifically, the upper hydraulic motor driving holding device 15 includes upper hydraulic servo motor 16, upper ball-screw 19
With dewclaw moving sleeve 21, the sliding of dewclaw moving sleeve 21 is placed in 103 inner cavity of installation sleeve, the upper ball-screw
19 be fixed on 103 rear portion of installation sleeve and one end protrude into 103 inner cavity of installation sleeve and by upper guider screw 20 with
21 rear portion of dewclaw moving sleeve guiding is fixedly connected, and upper 103 rear end of installation sleeve is also fixedly connected with motor mount
18, the upper motor mount 18 can be directly fixedly connected with upper 103 rear end face of installation sleeve, can also be with upper ball-screw
19 outer fixing seats are fixedly connected, and the fixation to upper motor mount 18 can be achieved.The upper hydraulic servo motor 16 is fixed on
Upper 18 rear portion of motor mount, upper 16 output end of hydraulic servo motor protrude into 18 inner cavity of motor mount and by upper
Shaft coupling 17 is connect with upper 19 rear end of ball-screw, and the upper hydraulic servo motor 16 drives upper ball-screw 19 to rotate, described
Upper ball-screw 19 converts the axial linear movement of axial linear movement driving dewclaw moving sleeve 21 for rotation and pushes up workpiece 24
Tightly, 21 front end face of dewclaw moving sleeve is equipped with the dewclaw supporting block 22 contacted with workpiece.
Its promising internal lower claw moving sleeve 10 and upper is all provided in the lower installation sleeve 101 and upper installation sleeve 103
The mobile lubricating cup 23 being lubricated of pawl moving sleeve 21.It can distinguish on 103 shell of lower installation sleeve 101 and upper installation sleeve
Lubricating cup 23 is installed, lubricating cup 23 can also be only installed on upper 103 shell of installation sleeve, then passes through oil pipe for lower installation sleeve
101 are connected to upper installation sleeve 103, can be achieved to guarantee it to the lubrication of lower claw moving sleeve 10 and dewclaw moving sleeve 21
Movement is flexible.
When this practical new use: being illustrated for being ground to workpiece 24, process tool 25 therein is grinding wheel.
It first passes through pressing plate 2 and pedestal 1 and entire mechanism is fixed on platen face by holding screw 3, when workpiece 24 is ground
When, upper hydraulic servo motor 16 and lower hydraulic servo motor 5 start to turn round, upper hydraulic servo motor 16 by upper coupling 17 and
The revolution of upper ball-screw 19 keeps dewclaw moving sleeve 21 mobile, dewclaw moving sleeve 21 drive the linear motion of dewclaw supporting block 22 and
Surface is hit exactly with grinding wheel opposite side on top tight workpiece 24；Lower hydraulic servo motor 5 passes through lower coupler 6 and lower ball-screw 8
Revolution keeps lower claw moving sleeve 10 mobile, and lower claw moving sleeve 10 drives the top of front to move linearly and push lower claw lever block
11 turn round around lower claw shaft 12, hold out against lower claw supporting block 13 on workpiece 24 under the side of grinding wheel by lever principle
Portion surface.Dewclaw supporting block 22 and lower claw supporting block 13 hold out against the deformation for overcoming and generating due to wheel grinding to workpiece 24, together
When, as workpiece 24 carries out gradually becoming smaller for grinding diameter, upper hydraulic servo motor 16 and lower hydraulic servo motor 5 can be driven
Pawl supporting block 22 and the mobile outer surface for being close to workpiece 24 of lower claw supporting block 13, realize and hold out against to the continual and steady of workpiece 24,
Workpiece in entire grinding process is set to keep certain rigidity, it is indeformable, to improve the grinding accuracy of workpiece.
The utility model uses the driving for being implemented in combination with tracking center frame of hydraulic servo motor and ball-screw, solves
The problem of structure is complicated for existing tracking center frame, processing difficulties, manufacturing cost are high and inconvenient debugging.
Above-described embodiment, the only preferred embodiment of the utility model are not used to limit the utility model practical range,
Therefore all equivalence changes done with content described in the utility model claims, the utility model claims model should all be included in
Within enclosing.
Claims (4)
1. the hydraulic tracking centre rest of the small torque hydraulic motor driving of low speed, including the pedestal being fixedly connected with platen face
(1), the lower installation sleeve (101) and upper installation sleeve that arrangement and axis are parallel to each other up and down are machined on the pedestal (1)
(103), the lower installation sleeve (101) is connect by support frame (102) with upper installation sleeve (103), it is characterised in that: described
Support frame (102) front end rotational support has lower claw lever block (11), and lower hydraulic motor is equipped in the lower installation sleeve (101) and is driven
Dynamic holding device (4), lower hydraulic motor driving holding device (4) is mobile along lower installation sleeve (101) axis and holds out against
End, which presses against lower claw lever block (11) one end, to be rotated lower claw lever block (11) and holds out against lower claw lever block (11) upper end in work
Upper hydraulic motor is equipped on part (24) in the side lower surface of process tool (25), the upper installation sleeve (103) to drive
Dynamic holding device (15), upper hydraulic motor driving holding device (15) is mobile along upper installation sleeve (103) axis and pushes up
Tight end presses against side center surface opposite with process tool (25) on workpiece (24), gradually with workpiece (24) processing diameter
Reduce and described lower hydraulic motor driving holding device (4) and upper hydraulic motor drive holding device (15) can continue axial shifting
It is dynamic to keep holding out against workpiece (24).
2. the hydraulic tracking centre rest of the small torque hydraulic motor driving of low speed according to claim 1, it is characterised in that: institute
Stating lower hydraulic motor driving holding device (4) includes lower hydraulic servo motor (5), lower ball-screw (8) and lower claw moving sleeve
(10), lower claw moving sleeve (10) sliding is placed on lower installation sleeve (101) inner cavity, and the lower ball-screw (8) is fixed on
Lower installation sleeve (101) rear portion and one end protrude into lower installation sleeve (101) inner cavity and by lower guider screw (9) and lower claw
Moving sleeve (10) rear portion guiding is fixedly connected, and lower installation sleeve (101) rear end is also fixedly connected with lower motor mount
(7), the lower hydraulic servo motor (5) is fixed on lower motor mount (7) rear portion, lower hydraulic servo motor (5) output
End is protruded into lower motor mount (7) inner cavity and is connect by lower coupler (6) with lower ball-screw (8) rear end, the lower liquid
Servo motor (5) are pressed to drive lower ball-screw (8) rotation, rotation is converted axial linear movement by the lower ball-screw (8)
Axially linear movement holds out against lower claw lever block (11) for driving lower claw moving sleeve (10), under the lower claw lever block (11) passes through
Pawl shaft (12) and support frame (102) front are rotatablely connected, before lower claw lever block (11) lower side and support frame (102)
The extension spring (14) for resetting lower claw lever block (11) is equipped between end face, the lower claw lever block (11) and workpiece (24) are pasted
One end of conjunction is fixed with lower claw supporting block (13).
3. the hydraulic tracking centre rest of the small torque hydraulic motor driving of low speed according to claim 1, it is characterised in that: institute
Stating hydraulic motor driving holding device (15) includes upper hydraulic servo motor (16), upper ball-screw (19) and dewclaw movable sleeving
Cylinder (21), dewclaw moving sleeve (21) sliding are placed in installation sleeve (103) inner cavity, and the upper ball-screw (19) is solid
Due to upper installation sleeve (103) rear portion and one end protrudes into upper installation sleeve (103) inner cavity and by upper guider screw (20)
It is fixedly connected with dewclaw moving sleeve (21) rear portion guiding, upper installation sleeve (103) rear end is also fixedly connected with motor
Mounting base (18), the upper hydraulic servo motor (16) are fixed on motor mount (18) rear portion, the upper hydraulic servo horse
It protrudes into up to (16) output end in upper motor mount (18) inner cavity and by upper coupling (17) and upper ball-screw (19) rear end
It connects, ball-screw (19) rotation in upper hydraulic servo motor (16) driving, the upper ball-screw (19) turns rotation
Turning to axial linear movement driving dewclaw moving sleeve (21), axially linear movement holds out against workpiece (24), the dewclaw movable sleeving
Cylinder (21) front end face is equipped with the dewclaw supporting block (22) contacted with workpiece.
4. the hydraulic tracking centre rest of the small torque hydraulic motor driving of low speed according to claim 1,2 or 3, feature exist
In: pedestal (1) the lower part side is equipped with block, and pedestal (1) the lower part other side is connected with pressing plate by holding screw (3)
(2)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820917597.XU CN208342405U (en) | 2018-06-14 | 2018-06-14 | The hydraulic tracking centre rest of the small torque hydraulic motor driving of low speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820917597.XU CN208342405U (en) | 2018-06-14 | 2018-06-14 | The hydraulic tracking centre rest of the small torque hydraulic motor driving of low speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208342405U true CN208342405U (en) | 2019-01-08 |
Family
ID=64883191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820917597.XU Expired - Fee Related CN208342405U (en) | 2018-06-14 | 2018-06-14 | The hydraulic tracking centre rest of the small torque hydraulic motor driving of low speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208342405U (en) |
-
2018
- 2018-06-14 CN CN201820917597.XU patent/CN208342405U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |