CN208409595U - A kind of convex self-centering Quick clamping device of hemisphere part - Google Patents
A kind of convex self-centering Quick clamping device of hemisphere part Download PDFInfo
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- CN208409595U CN208409595U CN201821006613.6U CN201821006613U CN208409595U CN 208409595 U CN208409595 U CN 208409595U CN 201821006613 U CN201821006613 U CN 201821006613U CN 208409595 U CN208409595 U CN 208409595U
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- centering
- clamping device
- quick clamping
- seat
- hemisphere part
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Abstract
The utility model relates to a kind of convex self-centering Quick clamping devices of hemisphere part, including fixing seat, centering seat, conical screw, fastening nut and fastening screw, fixing seat connects centering seat by fastening screw, conical screw is inserted in centering seat, fastenings is played the role of in conical screw and the cooperation of centering seat jointly.The utility model mentality of designing is ingenious, with novelty, it is loaded problem by the fast precise that a kind of self-centering Quick clamping device solves the convex hemisphere part of high-precision, improves work efficiency, ensure that product quality, it can also realize duplicate measurements and processing simultaneously, there is promotional value.
Description
Technical field
The utility model relates to precision processing technology field, especially a kind of self-centering rapid-mounted dress of convex hemisphere part
It sets.
Background technique
SP-502 hemisphere gyro machine is the core element for YT-2Q type aerospace gyroscope, precision and reliable operation
Property determines the precision and performance of gyroscope and navigation system.Hemisphere gyro machine hydrodynamic gas-lubricated bearing technology is its key technology
One of, the accuracy of manufacture for improving motor bearings is of great significance to the precision and reliability that improve motor.SP-502 hemisphere top
Spiral shell motor bearings material is TN80 hard alloy, hard and crisp, and final finishing, middle left and right can only be completed using method for grinding
Hemisphere is the core part of the type motor, and due to the particularity of design of part, how to realize that the precision of part is loaded becomes zero
One of the difficult point of part processing, Fig. 1 and Fig. 2 show the exploded perspective structural schematic diagram.
Since the part hardness and precision are higher, the final essence of spherical surface can only be completed using generating grinding method
Processing needs to be processed using cup wheel at this time, therefore can not be using the scheme that is loaded of mandrel and gland.In conjunction with design of part
The scheme that is loaded used before feature is bonded together part and tooling using 502 glue, be then loaded tooling for bonding method
Complete the final finishing of part.But the program has the disadvantage in that 1) adhesive reinforcement is low, not can guarantee the position of the hemisphere centre of sphere
Set precision；2) bonding force is small, and part hardness is high, and grinding force is big, and part is easy to fall off when processing；3) processing efficiency is low, using viscous
The scheme of connecing needs certain curing time, causes part processing efficiency low.
By literature search, the country there is no the similar convex self-centering Quick clamping device of hemisphere part.
Utility model content
The purpose of this utility model is that in place of making up the deficiencies in the prior art, providing one kind, to can be realized superhard material convex
The device that hemisphere part fast precise is loaded, and then improve the processing efficiency and processing quality of part.
The purpose of this utility model is realized by following technological means:
A kind of convex self-centering Quick clamping device of hemisphere part, it is characterised in that: including fixing seat, centering seat, taper spiral shell
Bar, fastening nut and fastening screw, fixing seat are made of installing handle and connection end, and the left side of connection end and installing handle are coaxial
It integrally produces, the right side of connection end is mounting surface, and it passes through the coaxially connected centering seat of fastening screw；
Centering seat is made of chassis and ladder boss structure, and the left side on chassis is matched with the mounting surface of fixing seat
A ladder boss structure is coaxially produced in positioning surface, the right side on chassis, and the axle center on the ladder boss structure and chassis is jointly same
Axis produces a conical screw mounting hole, and tapered screw rod is installed in the conical screw mounting hole, and the left end of conical screw is worn
It centering seat and is fastened out by fastening nut, the right end of the right end of tapered screw rod and conical screw mounting hole is that conical surface positioning connects
It connects.
Moreover, the flatness of the fixing seat right end mounting surface is not more than 0.001mm, and middle section has processed knife
Face is to guarantee the planarity requirements of mounting surface.
Moreover, a fabrication hole is coaxially produced in the axle center of the fixing seat right side, conical screw and fastening nut connect
Socket part quartile is in the fabrication hole.
Moreover, the mounting surface of the positioning surface and fixing seat right end of the centering seat is sturdy, the positioning surface flatness is little
In 0.001mm, and centre has processed knife face to guarantee planarity requirements.
Moreover, the right end outer circle of the ladder boss structure of the centering seat is positioning datum outer circle；With an outer circle left side
The plane that side is connected is positioning reference plane.
Moreover, the side wall of the ladder boss structure of the centering seat uniformly produces multiple axial open slots, the opening
Slot is connected to conical screw mounting hole.
Moreover, the right end inner wall of the tapered screw rod mounting hole is designed as inclined-plane, which is orientational cone-shaped surface.
Moreover, the left end of the tapered screw rod be engaged with fastening nut connection the end of thread, tapered screw rod it is most right
The positioning inclined-plane matched with tapered screw rod mounting hole is made in end.
Moreover, the fastening nut is two.
The advantages and positive effects of the utility model are as follows:
The present apparatus is made of fixing seat, centering seat, conical screw, fastening nut and fastening screw, and Fig. 3 show device and shows
It is intended to.Fixing seat is mainly used for connecting machine tool and centering seat, while playing the role of centering seat and radially finely tuning.Centering seat is mainly used
In being connected and fixed seat and part, while playing the role of part jointly with fixing seat and radially finely tuning.Conical screw is matched with centering seat
It amounts to fastenings is played the role of, for fastening nut for connecting centering seat and conical screw, fastening screw is solid for connecting
Reservation and centering seat.
The self-centering Quick clamping device that the utility model is developed then solves the convex hemisphere part spherical surface processing of high-precision
The problem of, while the device can also realize duplicate measurements and processing, easily facilitate the essence for improving the processing of part spherical surface
Degree.
This achievement mentality of designing is ingenious, has novelty, solves high-precision by a kind of self-centering Quick clamping device
The fast precise of convex hemisphere part is loaded problem, improves work efficiency, ensure that product quality, while can also realize repetition
Measurement and processing, have promotional value.
Detailed description of the invention
Fig. 1 is left hemisphere schematic perspective view；
Fig. 2 is right hemisphere schematic perspective view；
Fig. 3 is that apparatus of the present invention are loaded hemisphere part schematic diagram；
Fig. 4 is fixing seat schematic diagram；
Fig. 5 is centering seat schematic diagram one；
Fig. 6 is centering seat schematic diagram two；
Fig. 7 is conical screw schematic diagram；
Fig. 8 is conical screw and centering seat assembling schematic diagram one；
Fig. 9 is conical screw and centering seat assembling schematic diagram two；
Figure 10 is part scheme of installation.
Specific embodiment
Embodiment of the utility model will be described in detail below with reference to the attached drawings, it should be noted that the present embodiment is narrative
, it is not restrictive, protection scope of this utility model cannot be limited by this.
A kind of convex self-centering Quick clamping device of hemisphere part, including fixing seat 1, centering seat 2, conical screw 18, fastening
Nut 20 and fastening screw 3, fixing seat is coaxially connected by fastening screw with centering seat, and taper spiral shell is coaxially inserted in centering seat
The left end of bar, the conical screw is connect by fastening nut with centering seat, and fastenings is played in right end and the cooperation of centering seat jointly
21 effect.The structure of all parts is described in detail below:
(1) fixing seat
Fixing seat is the part for connecting machine tool and centering seat.Fixing seat is made of installing handle 7 and connection end 8, even
The left side for connecing end is coaxially integrally produced with installing handle, and installing handle is used for connecting machine tool main shaft.The right side of connection end is peace
Dress face 4, along the circumferential direction uniformly produces multiple axial connection screw thread holes 6 thereon, which passes through fastening screw
Coaxially connected centering seat.In order to guarantee that the precision of radial centering and axially position, the flatness of right end mounting surface are not more than
0.001mm, and middle section has processed knife face to guarantee the planarity requirements of mounting surface.
(2) centering seat
Centering seat is mainly used for being connected and fixed seat and hemisphere part.Centering seat is by 15 structure of chassis 16 and ladder boss structure
At the left side on chassis is the positioning surface 10 matched with the mounting surface of fixing seat, the mounting surface of positioning surface and fixing seat right end
Sturdy, which is not more than 0.001mm, and centre has processed knife face to guarantee planarity requirements.Edge on chassis
Circumferencial direction uniformly produces multiple axial connection via holes 9, and the axial via hole that connects is for connecting centering seat and fixing seat, it may be assumed that fastening
Screw passes through axial connection via hole and axial connection screw thread hole, and fixing seat and centering seat are linked together.
A ladder boss structure is coaxially produced in the right side on chassis, and the axle center on the ladder boss structure and chassis is jointly same
Axis produces a conical screw mounting hole 11, and the side wall of the ladder boss structure of centering seat uniformly produces multiple axial openings
Slot, the open slot are connected to conical screw mounting hole.Tapered screw rod is installed in conical screw mounting hole, and a left side for conical screw
End is pierced by centering seat and is fastened by fastening nut.Coaxially produce a fabrication hole 5, conical screw in the axle center of fixing seat right side
It is located in the fabrication hole with fastening nut coupling part.
The right end of tapered screw rod and the right end of conical screw mounting hole are located by connecting for the conical surface.Tapered screw rod mounting hole is most
Right end inner wall is designed as inclined-plane, which is orientational cone-shaped surface 13.Orientational cone-shaped surface cone match corresponding to conical screw, conical screw
Mounting hole is used for the installation of conical screw.
The right end outer circle of ladder boss structure is positioning datum outer circle 14, and positioning datum outer circle is used for the diameter of hemisphere part
To positioning；It is positioning reference plane 12 with the plane being connected on the left of the outer circle, axial direction of the positioning reference plane for hemisphere part is fixed
Position.
(3) conical screw
Conical screw and the cooperation of centering seat are played the role of fastening between hemisphere part and centering seat jointly.Tapered screw rod
Left end is the end of thread 17 that connection is engaged with fastening nut, and connection screw thread is for installing fastening nut, and fastening nut is two,
Play the role of fastening between conical screw and centering seat.The right end of tapered screw rod is made to be matched with tapered screw rod mounting hole
Positioning inclined-plane 19, corresponding to the centering seat cone match in positioning inclined-plane, for fastening workpiece.
The process for using of the present apparatus is introduced with reference to the accompanying drawing.
(1) uses three-jaw or spring chuck to be loaded fixing seat installing handle first, while levelling positioning end face or using grinding wheel
It is carried out to process by mill, guarantees that end face and pulsation of machine tool main shaft are not more than 0.002mm.
(2) conical screw is put into centering seat the corresponding mounting hole by, guarantees no-float between the two, while in taper spiral shell
Fastening nut is screwed at bar screw thread, at this time without tightening nut, as shown in Figure 9.
(3) hemisphere part is fitted into centering seat by, guarantees that inner bore of part is put at centering seat positioning outer circle, and guarantee part
Positioning reference plane and centering seat positioning reference plane no-float, fastening nut is tightened later guarantee hemisphere part and centering seat it
Between to be fastenedly connected, as shown in Figure 10.Since the depth of parallelism is high between centering seat positioning reference plane and mounting surface, can protect
The accuracy of form and position of part and centering seat datum level is demonstrate,proved, and between centering seat positions and is between outer circle and part before non-fastening nut
Gap cooperation, therefore can guarantee that part is easily packed into no-float between centering seat and part end face and centering seat positioning end face,
Fasten using two fastening nuts and may further ensure that being fastenedly connected between part and centering seat, and centering seat material
Spring steel 65Mn is selected, then can guarantee its longer service life and reliable fastening effect.
(4) is linked together centering seat with fixing seat using fastening screw, to fastening spiral shell after the corresponding benchmark of centering part
Nail is fastened, as shown in figure 3, completing the processing of part spherical surface later.
(5) after completes part processing, centering seat is removed, does not dismantle part at this time, band tooling is by accurate measurement personnel to spherical surface essence
Degree and sphere center position measure, and complete part after fixing seat and centering part spherical surface are reloaded if size has deviation
Processing, removed if part qualification part repeat step (2)-(4) complete the processing of next part.Since fixing seat is fixed
Position end face and pulsation of machine tool main shaft are not more than 0.002mm, and the machining benchmark of part and measuring basis are that centering seat is accordingly fixed
Plane, therefore can guarantee that part repeats the positioning accuracy being loaded, and then guarantee the machining accuracy of part.
Claims (9)
1. a kind of convex self-centering Quick clamping device of hemisphere part, it is characterised in that: including fixing seat, centering seat, conical screw,
Fastening nut and fastening screw, fixing seat are made of installing handle and connection end, left side and the installing handle coaxial one of connection end
System goes out, and the right side of connection end is mounting surface, and it passes through the coaxially connected centering seat of fastening screw；
Centering seat is made of chassis and ladder boss structure, and the left side on chassis is the positioning matched with the mounting surface of fixing seat
A ladder boss structure is coaxially produced in face, the right side on chassis, and the axle center on the ladder boss structure and chassis is coaxially made jointly
A conical screw mounting hole out, tapered screw rod is installed in the conical screw mounting hole, and the left end of conical screw is pierced by and looks for
Central seats that directly face the stage is simultaneously fastened by fastening nut, and the right end of the right end and conical screw mounting hole of tapered screw rod is located by connecting for the conical surface.
2. a kind of convex self-centering Quick clamping device of hemisphere part according to claim 1, it is characterised in that: described consolidates
The flatness of reservation right end mounting surface is not more than 0.001mm, and middle section has processed knife face to guarantee the plane of mounting surface
Degree requires.
3. a kind of convex self-centering Quick clamping device of hemisphere part according to claim 1, it is characterised in that: described consolidates
A fabrication hole is coaxially produced in the axle center of reservation right side, and conical screw and fastening nut coupling part are located in the fabrication hole.
4. a kind of convex self-centering Quick clamping device of hemisphere part according to claim 1, it is characterised in that: described looks for
The positioning surface of central seats that directly face the stage and the mounting surface of fixing seat right end are sturdy, which is not more than 0.001mm, and intermediate processing one
Empty knife face is to guarantee planarity requirements.
5. a kind of convex self-centering Quick clamping device of hemisphere part according to claim 1, it is characterised in that: described looks for
The right end outer circle of the ladder boss structure of central seats that directly face the stage is positioning datum outer circle；It is positioning base with the plane being connected on the left of the outer circle
Quasi- face.
6. a kind of convex self-centering Quick clamping device of hemisphere part according to claim 1, it is characterised in that: described looks for
The side wall of the ladder boss structure of central seats that directly face the stage uniformly produces multiple axial open slots, and the open slot and conical screw mounting hole connect
It is logical.
7. a kind of convex self-centering Quick clamping device of hemisphere part according to claim 1, it is characterised in that: the cone
The right end inner wall of type screw rod mounting hole is designed as inclined-plane, which is orientational cone-shaped surface.
8. a kind of convex self-centering Quick clamping device of hemisphere part according to claim 1, it is characterised in that: the cone
The left end of type screw rod is the end of thread that connection is engaged with fastening nut, and the right end of tapered screw rod is made and tapered screw rod mounting hole
The positioning inclined-plane matched.
9. a kind of convex self-centering Quick clamping device of hemisphere part according to claim 1 or 8, it is characterised in that: described
Fastening nut be two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821006613.6U CN208409595U (en) | 2018-06-28 | 2018-06-28 | A kind of convex self-centering Quick clamping device of hemisphere part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821006613.6U CN208409595U (en) | 2018-06-28 | 2018-06-28 | A kind of convex self-centering Quick clamping device of hemisphere part |
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| Publication Number | Publication Date |
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| CN208409595U true CN208409595U (en) | 2019-01-22 |
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ID=65107339
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821006613.6U Active CN208409595U (en) | 2018-06-28 | 2018-06-28 | A kind of convex self-centering Quick clamping device of hemisphere part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168477A (en) * | 2020-01-03 | 2020-05-19 | 中国船舶重工集团公司第七0七研究所 | Precision grinding tool and process for quartz glass ball parts |
-
2018
- 2018-06-28 CN CN201821006613.6U patent/CN208409595U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168477A (en) * | 2020-01-03 | 2020-05-19 | 中国船舶重工集团公司第七0七研究所 | Precision grinding tool and process for quartz glass ball parts |
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