CN205571943U - Work piece internal hole positioning frock - Google Patents
Work piece internal hole positioning frock Download PDFInfo
- Publication number
- CN205571943U CN205571943U CN201620253647.XU CN201620253647U CN205571943U CN 205571943 U CN205571943 U CN 205571943U CN 201620253647 U CN201620253647 U CN 201620253647U CN 205571943 U CN205571943 U CN 205571943U
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- CN
- China
- Prior art keywords
- hole
- slide
- cylinder
- steel ball
- pedestal
- 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.)
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Abstract
The utility model discloses a work piece internal hole positioning frock, including the base, a plurality of slides, and dabber, base central authorities have a cylinder, set up the first through -hole that runs through cylinder top surface and base bottom surface on the cylinder, dabber activity assembly is in first through -hole, and the dabber has a reducer, on the lateral wall of cylinder the circumference level offer with quantity such as slide and with the second through -hole of first through -hole intercommunication, placed a steel ball in every second through -hole, the diameter of steel ball is greater than the wall thickness of cylinder, the mobilizable setting of slide on the base and with the second through -hole that corresponds radially to it, the spindle moves down the measured time can promote slide along base radial movement through the interact between reducer and steel ball. The beneficial effects of the utility model are that: realize the quick pushing the workpiece's of slide hole pore wall through the cooperation between dabber and the steel ball, this position fixing process step is extremely simple, and the structure is ingenious, and the location is reliable, the popularization and application of can automizing on a large scale completely.
Description
Technical field
This utility model belongs to positioning fixture technical field, is specifically related to a kind of inner hole of workpiece positioning tool.
Background technology
In mechanical processing process, often by utilizing workpiece self endoporus to carry out positioning and clamping, tradition Internal hole positioning uses locating shaft and coordinates realization with inner hole of workpiece, and in view of the efficiency of clamping workpiece, workpiece must use matched in clearance with location between centers, and this one of the main reasons that position error produces exactly.In the occasion that design is higher to hole positioning accuracy request, if the machining accuracy of workpiece is improved, or the manufacturing tolerance value that workpiece is used for the hole of location reduces, manufacturing cost will be greatly increased, and high-precision location is difficult to long sustaining, safeguard so that strengthen the detection to setting element, thus increase management cost.As can be seen here, this location mode is difficult to meet the location requirement of high accurate hole.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, it is provided that a kind of inner hole of workpiece positioning tool, it is possible to meet positioning precision high, the positioning requirements that handling speed is fast.
For solving prior art problem, the technical solution adopted in the utility model: a kind of inner hole of workpiece positioning tool, including pedestal, some slides, and mandrel；Base central has a cylinder, and cylinder offers the first through hole running through cylinder end face and base bottom surface；Mandrel activity is assemblied in the first through hole, and mandrel has a reducer；On cylindrical sidewall, circumference level offers and the quantity such as slide and the second through hole of connect with the first through hole, is placed with a steel ball in each second through hole, and the diameter of steel ball is more than cylindrical wall thickness；Slide is mobilizable be arranged on pedestal and with the second corresponding through hole radially aligned；Slide can be promoted to move radially along pedestal by the interaction between reducer and steel ball when mandrel moves up and down.
Preferably, slide includes horizontal part and vertical portion connected vertically with horizontal part one end, and horizontal part is connected with pedestal by moving sets, and the medial surface of vertical portion can be with cylindrical wall contacts.
Preferably, the lower anchor ring of pressure ring is provided with multiple connection post, connects post and is connected with pedestal by bolt；Connecting the height thickness higher than horizontal part of post, vertical portion and the cylinder of slide are positioned in the circular hole of pressure ring.
Preferably, between slide and pedestal it is Structure deformation.
Preferably, the quantity of slide and the second through hole is three, and circumference is uniformly arranged.
Preferably, reducer is two ends slightly middle thin hourglass configuration or conical structures.
Preferably, use between mandrel and the first through hole threaded.
Preferably, mandrel, slide, steel ball and pedestal all use carbon tool steel to make.
This utility model has the advantages that
1, by realizing the endoporus hole wall of the quick top tight workpiece of slide coordinating between mandrel with steel ball, this positioning process step is the simplest, and structure is ingenious, and location is reliable, completely can automatization's popularization and application on a large scale.
2, slide uses " L " shape structure and coordinates the constraint to its longitudinal degress of feedom of pressure ring, improves the reliability of this frock, prevents slide from producing with pedestal and departs from；This outer press ring can play the effect of supporting workpiece, it is to avoid workpiece contacts with slide and causes increasing frictional force when slide moves.
3, it is threaded connection between mandrel and pedestal, it is possible to realize axial self-locking function, can realize automatically controlling by adaptive more power source simultaneously.
Accompanying drawing explanation
Fig. 1 is structural perspective of the present utility model；
Fig. 2 is structure top view of the present utility model；
Fig. 3 is the sectional view under this utility model original state；
Fig. 4 is the sectional view under utility model works state；
Fig. 5 is the partial enlarged drawing in Fig. 3 at A.
Reference:
1 pedestal；2 pressure rings；3 slides；4 mandrels；5 cylinders；6 second through holes；7 steel balls；8 chutes；9 balls；10 bolts；11 first through holes.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.Following example are only used for clearly illustrating the technical solution of the utility model, and can not limit protection domain of the present utility model with this.
As Fig. 1 is to shown in 5, and a kind of inner hole of workpiece positioning tool, including pedestal 1, pressure ring 2, three slides 3, and mandrel 4.
Pedestal 1 central authorities have a cylinder 5, and cylinder 5 offers the first through hole 11 running through cylinder 5 end face and pedestal 1 bottom surface.On the sidewall of cylinder 5, circumference level offers three the second through holes 6 connected with the first through hole 11, is placed with a steel ball 7 in each second through hole 6, and the diameter of steel ball 7 is more than the wall thickness of cylinder 5.
Slide 3 includes horizontal part and vertical portion connected vertically with horizontal part one end, and horizontal part is connected with pedestal 1 by moving sets, and with the second corresponding through hole 6 radially aligned, the medial surface of its vertical portion can be with the wall contacts of cylinder 5.
The lower anchor ring of pressure ring 2 is provided with three connection posts, connects post and is connected with pedestal 1 by bolt 10；Connecting the height thickness higher than horizontal part of post, vertical portion and the cylinder 5 of slide 3 are positioned in the circular hole of pressure ring 2.
Mandrel 4 is threaded connection and is assemblied in the first through hole 11, and mandrel 4 has a reducer, and one end of mandrel 4 can connect motor and realize the raising and lowering of mandrel 4 as power source.Slide 3 can be promoted to move radially along pedestal 1 by the interaction between reducer and steel ball 7 when mandrel 4 moves up and down.
In order to reduce the frictional force between slide 3 and pedestal 1 further, it it is Structure deformation between slide 3 and pedestal 1, it is specially the end face at pedestal 1 and offers some chutes 8, chute 8 is placed some balls 9, some chutes 8 can also be offered in the bottom surface of the horizontal part of slide 3, and this chute 8 coordinates with ball 9 can also play guide effect.
In order to preferably make steel ball 7 move in the second through hole 6, the reducer of mandrel 4 is two ends slightly middle thin hourglass configuration or conical structures.Thus the axial force being applied on mandrel 4 is become the thrust axial along the second through hole 6 being applied on steel ball 7, thus another steel ball 7 preferably moves.
Additionally, due to mandrel 4, slide 3, steel ball 7, ball 9 and pedestal 1 are all the parts that stress is maximum, carbon tool steel is the most all used to make, to prevent deformation from causing error to increase.
Operation principle of the present utility model and process
As shown in Figure 3, in an initial condition, the surface that reducer on mandrel 4 is the most carefully located contacts so that steel ball 7 is fully located in the second through hole 6 with steel ball 7, now slide 3 is pushed into pedestal 1 central authorities and makes the wall contacts of its vertical portion and cylinder 5, finally workpiece is passed through its inner hole sleeve on the vertical portion of slide 3.As shown in Figure 4, now control mandrel 4 to decline, make the surface of reducer gradually extrude steel ball 7, during mandrel 4 declines, steel ball 7 is gradually outer to be moved and promotes that slide 3 is outer to be moved till touching the hole wall of inner hole of workpiece, and now this frock reaches to position clamped condition and completes clamping.When work pieces process is complete, can need only easily take off workpiece by contrary step.Thus realize quickly, the purpose of hi-Fix workpiece.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; on the premise of without departing from this utility model know-why; can also make some improvement and deformation, these improve and deformation also should be regarded as protection domain of the present utility model.
Claims (8)
1. an inner hole of workpiece positioning tool, it is characterised in that: include pedestal, some slides, and mandrel；Base central has a cylinder, and cylinder offers the first through hole running through cylinder end face and base bottom surface；Mandrel activity is assemblied in the first through hole, and mandrel has a reducer；On cylindrical sidewall, circumference level offers and the quantity such as slide and the second through hole of connect with the first through hole, is placed with a steel ball in each second through hole, and the diameter of steel ball is more than cylindrical wall thickness；Slide is mobilizable be arranged on pedestal and with the second corresponding through hole radially aligned；Slide can be promoted to move radially along pedestal by the interaction between reducer and steel ball when mandrel moves up and down.
A kind of inner hole of workpiece positioning tool the most according to claim 1, it is characterized in that, slide includes horizontal part and vertical portion connected vertically with horizontal part one end, and horizontal part is connected with pedestal by moving sets, and the medial surface of vertical portion can be with cylindrical wall contacts.
A kind of inner hole of workpiece positioning tool the most according to claim 2, it is characterised in that also including pressure ring, the lower anchor ring of pressure ring is provided with multiple connection post, is connected post and is connected with pedestal by bolt；Connecting the height thickness higher than horizontal part of post, vertical portion and the cylinder of slide are positioned in the circular hole of pressure ring.
A kind of inner hole of workpiece positioning tool the most according to claim 1, it is characterised in that be Structure deformation between slide and pedestal.
5. according to the arbitrary described a kind of inner hole of workpiece positioning tool of Claims 1-4, it is characterised in that the quantity of slide and the second through hole is three, and circumference is uniformly arranged.
A kind of inner hole of workpiece positioning tool the most according to claim 5, it is characterised in that reducer is two ends slightly middle thin hourglass configuration or conical structures.
A kind of inner hole of workpiece positioning tool the most according to claim 6, it is characterised in that use threaded between mandrel and the first through hole.
A kind of inner hole of workpiece positioning tool the most according to claim 1, it is characterised in that mandrel, slide, steel ball and pedestal all use carbon tool steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253647.XU CN205571943U (en) | 2016-03-30 | 2016-03-30 | Work piece internal hole positioning frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253647.XU CN205571943U (en) | 2016-03-30 | 2016-03-30 | Work piece internal hole positioning frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205571943U true CN205571943U (en) | 2016-09-14 |
Family
ID=56867620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620253647.XU Expired - Fee Related CN205571943U (en) | 2016-03-30 | 2016-03-30 | Work piece internal hole positioning frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205571943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729151A (en) * | 2016-03-30 | 2016-07-06 | 句容五星机械制造有限公司 | Workpiece inner hole positioning tool |
-
2016
- 2016-03-30 CN CN201620253647.XU patent/CN205571943U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729151A (en) * | 2016-03-30 | 2016-07-06 | 句容五星机械制造有限公司 | Workpiece inner hole positioning tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20170330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |