CN106239191B - Screw type self-centering fixture - Google Patents
Screw type self-centering fixture Download PDFInfo
- Publication number
- CN106239191B CN106239191B CN201610831798.3A CN201610831798A CN106239191B CN 106239191 B CN106239191 B CN 106239191B CN 201610831798 A CN201610831798 A CN 201610831798A CN 106239191 B CN106239191 B CN 106239191B
- Authority
- CN
- China
- Prior art keywords
- hole
- circular cone
- thread spindle
- voussoir
- axle sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The present invention provides a kind of screw type self-centering fixtures comprising：Sleeve has a long through-hole；First thread spindle is threadedly connected to inside long through-hole first end, also, the first thread spindle is internally provided with the first circular cone through-hole；Second thread spindle is threadedly connected to inside long through-hole second end, also, the second thread spindle is internally provided with the second circular cone through-hole；The second end end face of first thread spindle, the second end end face of the second thread spindle are opposite；First voussoir is located in the first circular cone through-hole, and length direction is consistent with the axis of the first circular cone through-hole, and section gradually increases from first end to second end, and outer surface is in circular conical surface and is close to the inner surface of the first circular cone through-hole；Second voussoir is located in the second circular cone through-hole, and length direction is consistent with the axis of the second circular cone through-hole, and section gradually increases from first end to second end, and outer surface is in circular conical surface and is close to the inner surface of the second circular cone through-hole.The present invention processes and simple to operate, positioning accuracy height.
Description
Technical field
The present invention relates to a kind of fixture being clamped to circular shaft type workpiece, more particularly to a kind of self-centering folder of screw type
Tool.
Background technology
The problem of there is decentractions for the connection of circular shaft type workpiece and drive shaft, it is very high to required precision for some
Occasion, it is this kind of due to axis connection exist it is eccentric caused by bounce can bring problems to these workplaces, for this purpose, compeling
Cutting, which needs one kind, can carry out circular shaft type workpiece precision centering clamping, and the fixture of mode simplicity.
Invention content
The purpose of the present invention is to provide a kind of screw type self-centering fixtures, and one kind is provided with the clamping for circular shaft type workpiece
Easy, accurate fixture.
To achieve the goals above, the present invention provides the following technical solutions：
A kind of screw type self-centering fixture comprising：There is sleeve a long through-hole, the long through-hole inner surface to be equipped with interior
Screw thread；First thread spindle, cylindrical, outer surface is equipped with external screw thread, is threadedly coupled inside the long through-hole first end,
Also, first thread spindle is internally provided with the first circular cone through-hole, the first circular cone through-hole from first thread spindle
One end end face to second end end face gradually increases；Second thread spindle, cylindrical, outer surface is equipped with external screw thread, is connected with screw thread
It is connected to inside the long through-hole second end, also, second thread spindle is internally provided with the second circular cone through-hole, second circular cone
Through-hole is gradually increased from the first end end face of second thread spindle to second end end face；The long through-hole, the first thread spindle,
One circular cone through-hole, the second thread spindle, the second circular cone through-hole are coaxial, the second end end face of first thread spindle, the second thread spindle
Second end end face it is opposite；Multiple first voussoirs, it is elongated, be located at the first circular cone through-hole in, length direction with it is described
The axis of first circular cone through-hole is consistent, and section gradually increases from first end to second end, and outer surface is in circular conical surface and is close to described
The inner surface of first circular cone through-hole, inner surface is for clamping workpiece；Multiple second voussoirs, it is elongated, it is located at described second and justifies
In taper via-hole, length direction is consistent with the axis of the second circular cone through-hole, and section gradually increases from first end to second end, outside
Surface is in circular conical surface and is close to the inner surface of the second circular cone through-hole, and inner surface is for clamping workpiece.
Preferably, in above-mentioned screw type self-centering fixture, first voussoir, the second voussoir inner surface be plane.
Preferably, in above-mentioned screw type self-centering fixture, first voussoir, the second voussoir second end end face be flat
Face.
Preferably, in above-mentioned screw type self-centering fixture, first thread spindle, the second thread spindle first end appearance
Face is equipped with deep hole.
Preferably, in above-mentioned screw type self-centering fixture, further include：Transition axle sleeve, it is cylindrical, it is located at the sleeve
Inside, it is coaxial with the long through-hole, and first end is located in the first circular cone through-hole, it is logical that second end is located at second circular cone
In hole；And the first end of the transition axle sleeve is equipped with the first gap of perforation, first voussoir is along the transition axle sleeve
Radial direction freely movably be set to first gap in；The second end of the transition axle sleeve is equipped with the second gap of perforation,
Second voussoir is freely movably set in second gap along the radial direction of the transition axle sleeve.
Preferably, in above-mentioned screw type self-centering fixture, the first end end outer surface of the transition axle sleeve be equipped with
The identical circular conical surface of the first circular cone through-hole inner surface；The second end end outer surface of the transition axle sleeve is equipped with and described the
The identical circular conical surface of two circular cone through-hole inner surfaces.
Preferably, in above-mentioned screw type self-centering fixture, first end outer diameter, the internal diameter of the transition axle sleeve are all higher than
Two end outer diameters, internal diameter.
It is found that present invention processing and simple to operate, positioning accuracy is high for analysis, only need to by rotating two thread spindles,
It can realize the self-centering and clamping of coupled two circular shafts, ensure the concentric of two circular shafts.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the embodiment of the present invention；
Fig. 2 is the schematic cross-sectional view of the embodiment of the present invention；
Fig. 3 is the tube-in-tube structure schematic diagram of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the first thread spindle of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the first voussoir of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the transition axle sleeve of the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the second thread spindle of the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of the second voussoir of the embodiment of the present invention；
Fig. 9 is the circular shaft part connection diagram of the screw type self-centering fixture and different-diameter of the embodiment of the present invention；
Figure 10 is that the section view after the circular shaft part connection of screw type self-centering fixture provided by the invention and different-diameter is illustrated
Figure.
Specific implementation mode
The present invention is described in further details with reference to the accompanying drawings and detailed description.
As shown in Figure 1 and Figure 2, the embodiment of the present invention includes sleeve 1, the first thread spindle 2, multiple first voussoirs 3, transition axises
Cover the 4, second thread spindle 5, multiple second voussoirs 6.
As shown in Figure 1-Figure 3, there is sleeve 1 long through-hole 10,10 inner surface of long through-hole to be equipped with internal thread.Sleeve 1 is whole
For cylindrical structure, but its outer surface is not necessarily cylindrical surface, and long through-hole 10 then should be circular hole.
As shown in Figure 1, Figure 2 and Figure 4, the first thread spindle 2 is cylindrical, and outer surface is equipped with external screw thread, is threadedly coupled
Inside 10 first end of long through-hole, also, the first thread spindle 2 is internally provided with the first circular cone through-hole 20, the first circular cone through-hole 20
Inside the first end end face 22 of the first thread spindle 2 to second end end face 23 gradually increases without leave.
As shown in Figure 1, Figure 2 and Figure 7, the second thread spindle 5 is cylindrical, and outer surface is equipped with external screw thread, is threadedly coupled
Inside 10 second end of long through-hole, also, the second thread spindle 5 is internally provided with the second circular cone through-hole 50, the second circular cone through-hole 50
Inside the first end end face 52 of the second thread spindle 5 to second end end face 53 gradually increases without leave.
Long through-hole 10, the first thread spindle 2, the first circular cone through-hole 20, the second thread spindle 5, the second circular cone through-hole 50 and under
The transition axle sleeve 4 of face detailed description is coaxial, the second end end face 23 of the first thread spindle 2, the second thread spindle 5 second end end face 53
Relatively.
As shown in Figure 1, Figure 2 and Fig. 5 shown in, the first voussoir 3 be it is multiple, preferably three or four, along the circle of transition axle sleeve 4
Circumferential direction is evenly arranged.Each first voussoir, 3 structure is identical, elongated, is located in the first circular cone through-hole 20, length direction
Consistent with the axis of the first circular cone through-hole 20, section gradually increases from first end to second end (second end end face 33), i.e., and first
End is sharp end, and second end is butt end, and outer surface 31 is in circular conical surface and is close to the inner surface of the first circular cone through-hole 20, is close to be preferably
Face is close to, i.e., the entire surface of outer surface is close to the inner surface of the first circular cone through-hole 20, in other examples, can also be
One busbar of outer surface is close to the inner surface of the first circular cone through-hole 20, and the inner surface 32 of the first voussoir 3 is for clamping workpiece.
Second voussoir 6 is multiple, preferably three or four, is evenly arranged along the circumferencial direction of transition axle sleeve 4.It is each
Second voussoir 6 is elongated, is located in the second circular cone through-hole 50, and length direction is consistent with the axis of the second circular cone through-hole 50, cuts
Face gradually increases from first end to second end (second end end face 63), and outer surface 61 is in circular conical surface and is close to the second circular cone through-hole 50
Inner surface, be close to preferably face and be close to, i.e., the entire surface of outer surface is close to the inner surface of the second circular cone through-hole 50, at other
Embodiment in, can also be that a busbar of outer surface is close to the inner surface of the second circular cone through-hole 50, the second voussoir 6 it is interior
Surface 62 is for clamping workpiece.
Preferably, the first voussoir 3, the second voussoir 6 inner surface be plane, the second end end face of the two is also plane.
As shown in Fig. 2, Fig. 6, in order to ensure that the first voussoir 3, stablizing for the second voussoir 6 move, the present embodiment included
Axle sleeve 4 is crossed, it is cylindrical, it is located inside sleeve 1, it is coaxial with long through-hole 10 Deng, and first end (the larger one end of outer diameter) position
In in the first circular cone through-hole 20, second end (the smaller one end of outer diameter) is located in the second circular cone through-hole 50.Also, first end is equipped with
First gap 41 of perforation, the first voussoir 3 are freely movably set in the first gap 41 along the radial direction of transition axle sleeve 4, the
The second end end face 33 of one voussoir 3 is contacted with the bottom surface of the first gap 41, so that the bottom surface limitation first of the first gap 41
Voussoir 3 realizes radial motion of first voussoir 3 along transition axle sleeve 4 along the axial movement of transition axle sleeve 4.The second of transition axle sleeve 4
Second gap 43 of the end equipped with perforation, the second voussoir 6 are freely movably set to the second gap 43 along the radial direction of transition axle sleeve 4
In, the second end end face 63 of the second voussoir 6 is contacted with the bottom surface of the second gap 43, so that the bottom surface limitation of the second gap 43
Second voussoir 6 realizes radial motion of second voussoir 6 along transition axle sleeve 4 along the axial movement of transition axle sleeve 4.First gap 41
It can be oppositely arranged, can also be staggered in the axial direction of transition axle sleeve 4 with the second gap 43.First gap 41 and second slits
Mouth 43 is correspondingly less than the oneself height of the second end of the first voussoir 3 and the second voussoir 6 in the length of transition axle sleeve 4 radially.
In application, transition axle sleeve 4 is mounted on circular shaft part to be felt relieved, the first voussoir 3 and the second voussoir 6 are from the both ends of transition axle sleeve 4
In embedded corresponding gap.
Further, the first end end outer surface of transition axle sleeve 4 be equipped with 20 inner surface of the first circular cone through-hole coincide
Circular conical surface 42；Second end end outer surface be equipped with 50 inner surface of the second circular cone through-hole coincide circular conical surface 44, so avoid with
First circular cone through-hole 20 and the contact of the second circular cone through-hole 50, and then increase length of two gap in transition axle sleeve axial direction, from
And increase the contact area with circular shaft part to be stepped up, improve clamping force.
In order to adapt to the first voussoir 3, the second voussoir 6 clamps the circular shaft part of different-diameter, and referring to Fig. 9, circular shaft part 7 is in transition
Diameter in axle sleeve 4 is less than diameter of the circular shaft part 8 in transition axle sleeve 4, and the first end internal diameter of transition axle sleeve 4 is more than transition axle sleeve
4 second end internal diameter.The first end outer diameter of transition axle sleeve 4 can be more than the second end outer diameter of transition axle sleeve 4, implement in others
The second end outer diameter of transition axle sleeve 4 can also be equal in example.Figure 10 be screw type self-centering fixture provided by the invention from it is different
Schematic cross-sectional view after the circular shaft part connection of diameter.
First thread spindle 2, the second thread spindle 5 are threadedly connected in the long through-hole 10 of sleeve 1, for the ease of rotating the first spiral shell
Line axis 2, the second thread spindle 5, as shown in Figure 1, the first end outer surface of the two is respectively equipped with deep hole 21, deep hole 51, deep hole 21, depth
Bolt, control stick etc. can be inserted in hole 51.
To sum up, the first thread spindle 2 and 5 outer round surface of the second thread spindle are machined with external screw thread, match respectively with 1 internal thread of sleeve
It closes, whereby, the rotary motion of the first thread spindle 2, the second thread spindle 5 is just uniquely converted into the linear motion in sleeve 1.First
2 the first circular cone through-hole 20 of inside of thread spindle and 3 male cone (strobilus masculinus) of the first voussoir coordinate, 5 the second circular cone through-hole 50 of inside of the second thread spindle
Coordinate with 6 male cone (strobilus masculinus) of the second voussoir, and under the limitation of transition axle sleeve 4, so that in the first thread spindle 2 and the second thread spindle
5 transform linear motion is radial motion；First voussoir 3 and the second voussoir 6 are embedded in its both ends from the both ends of transition axle sleeve 4 respectively
In gap, the inner surface of the first voussoir 3 and the second voussoir 6 and circular shaft workpiece feel relieved are in direct contact, thus two voussoirs
Radial motion is transmitted on the circular shaft for waiting for centering clamping, realizes circumferencial direction uniformly distributed the first voussoir 3 and the second voussoir 6 to undetermined
The heart clamps the holding of circular shaft and loosens.
In terms of comprehensive, present invention processing and simple to operate, positioning accuracy is high, only need to by rotating two thread spindles,
It can realize the self-centering and clamping of coupled two circular shafts, ensure the concentric of two connecting shafts.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, all things considered are all merely illustrative, not the only.Institute
Have within the scope of the present invention or is included in the invention in the change being equal in the scope of the present invention.
Claims (5)
1. a kind of screw type self-centering fixture, which is characterized in that including：
There is sleeve a long through-hole, the long through-hole inner surface to be equipped with internal thread；
First thread spindle, cylindrical, outer surface is equipped with external screw thread, is threadedly coupled inside the long through-hole first end,
Also, first thread spindle is internally provided with the first circular cone through-hole, the first circular cone through-hole from first thread spindle
One end end face to second end end face gradually increases；
Second thread spindle, cylindrical, outer surface is equipped with external screw thread, is threadedly coupled inside the long through-hole second end,
Also, second thread spindle is internally provided with the second circular cone through-hole, the second circular cone through-hole from second thread spindle
One end end face to second end end face gradually increases；
The long through-hole, the first thread spindle, the first circular cone through-hole, the second thread spindle, the second circular cone through-hole are coaxial, first spiral shell
The second end end face of line axis, the second end end face of the second thread spindle are opposite；
Multiple first voussoirs, it is elongated, it is located in the first circular cone through-hole, length direction and the first circular cone through-hole
Axis is consistent, and section gradually increases from first end to second end, and outer surface is in circular conical surface and is close to the first circular cone through-hole
Inner surface, inner surface is for clamping workpiece；
Multiple second voussoirs, it is elongated, it is located in the second circular cone through-hole, length direction and the second circular cone through-hole
Axis is consistent, and section gradually increases from first end to second end, and outer surface is in circular conical surface and is close to the second circular cone through-hole
Inner surface, inner surface is for clamping workpiece；
First voussoir, the second voussoir inner surface be plane；
First voussoir, the second voussoir second end end face be plane.
2. screw type self-centering fixture according to claim 1, which is characterized in that first thread spindle, the second screw thread
The first end outer surface of axis is equipped with deep hole.
3. according to any screw type self-centering fixtures of claim 1-2, which is characterized in that further include：Transition axle sleeve is in
Cylindrical shape is located at the sleeve inner, coaxial with the long through-hole, and first end is located in the first circular cone through-hole, and second
End is located in the second circular cone through-hole；
And the first end of the transition axle sleeve is equipped with the first gap of perforation, first voussoir is along the transition axle sleeve
Radial direction freely movably be set to first gap in；
The second end of the transition axle sleeve be equipped with perforation the second gap, second voussoir along the transition axle sleeve radial direction
Freely movably it is set in second gap.
4. screw type self-centering fixture according to claim 3, which is characterized in that the first end end of the transition axle sleeve
Outer surface is equipped with the circular conical surface coincideing with the first circular cone through-hole inner surface；
The second end end outer surface of the transition axle sleeve is equipped with the circular conical surface coincideing with the second circular cone through-hole inner surface.
5. screw type self-centering fixture according to claim 3, which is characterized in that outside the first end of the transition axle sleeve
Diameter, internal diameter are accordingly more than second end outer diameter, internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610831798.3A CN106239191B (en) | 2016-09-19 | 2016-09-19 | Screw type self-centering fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610831798.3A CN106239191B (en) | 2016-09-19 | 2016-09-19 | Screw type self-centering fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106239191A CN106239191A (en) | 2016-12-21 |
| CN106239191B true CN106239191B (en) | 2018-09-18 |
Family
ID=57600266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610831798.3A Active CN106239191B (en) | 2016-09-19 | 2016-09-19 | Screw type self-centering fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106239191B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3703032A (en) * | 1970-08-14 | 1972-11-21 | Trw Inc | Diffusion bonding process |
| CH670063A5 (en) * | 1985-08-24 | 1989-05-12 | Hauni Werke Koerber & Co Kg | |
| CN102773815B (en) * | 2012-07-17 | 2015-08-26 | 安徽铜冠机械股份有限公司 | A kind of weldment coaxiality tool |
| CN102886703B (en) * | 2012-09-25 | 2015-01-21 | 宁波松鹰汽车部件有限公司 | Hydraulic self-centering fast clamping device |
| CN104325334A (en) * | 2014-10-08 | 2015-02-04 | 重庆杭飞机械制造有限公司 | Combined double-head clamp |
| CN206105409U (en) * | 2016-09-19 | 2017-04-19 | 中国电子科技集团公司第二十一研究所 | Precession formula is from line -up clamp |
-
2016
- 2016-09-19 CN CN201610831798.3A patent/CN106239191B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106239191A (en) | 2016-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103495755B (en) | Machining clamp for outer wall of blind-hole thin-wall sleeve part and using method thereof | |
| US20180335292A1 (en) | Coaxiality detecting tool | |
| CN203390235U (en) | Taper expansion mandrel | |
| CN104190977A (en) | Cylindrical workpiece outer circle machining clamp and using method thereof | |
| CN102814519A (en) | Internal expansion tool for mechanical processing | |
| CN206105409U (en) | Precession formula is from line -up clamp | |
| CN105729300A (en) | Clamp for cylindrical grinding of hollow shaft | |
| CN106270600A (en) | One rises core type location mandril | |
| CN204525163U (en) | Axle shaft gear processing and positioning device | |
| CN105690238A (en) | Vertical type adjustable ultrasonic vibration honing device | |
| CN106239191B (en) | Screw type self-centering fixture | |
| CN108436123A (en) | A kind of fixture suitable for thin-walled parts quick-clamping | |
| CN104842268A (en) | Annular part grinding fixture | |
| CN201052556Y (en) | Top paw type drill chuck | |
| CN203696482U (en) | Inner hole machining fixing clamp for ring parts | |
| CN103433787A (en) | Dual taper automatic centring device | |
| CN103056408B (en) | Three-jaw centrifugal force self-centering chuck | |
| CN202667701U (en) | Inner expansion tool for machining | |
| CN210937212U (en) | Clamping mechanism for turning outer circle of hollow slender pipe fitting | |
| CN205341967U (en) | Oil pump casing body anchor clamps | |
| CN103331460B (en) | Axial location draws the clamping device that rises | |
| CN207914615U (en) | A kind of Internal hole positioning machining tool | |
| CN104476226A (en) | Contour processing clamp for bending part | |
| CN205928227U (en) | A centring means that is used for back shaft class part hole | |
| CN202991733U (en) | Concentric double-head self-locking clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220818 Address after: 16th Floor, No. 647, East Longhua Road, Huangpu District, Shanghai, 200023 Patentee after: China Electronics Technology robot Co.,Ltd. Address before: 200233, No. 30 Rainbow Road, Shanghai, Xuhui District Patentee before: NO.21 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY Group Corp. |