CN201693385U - Reaming fixture with automatic centering and floating functions - Google Patents
Reaming fixture with automatic centering and floating functions Download PDFInfo
- Publication number
- CN201693385U CN201693385U CN2010202475750U CN201020247575U CN201693385U CN 201693385 U CN201693385 U CN 201693385U CN 2010202475750 U CN2010202475750 U CN 2010202475750U CN 201020247575 U CN201020247575 U CN 201020247575U CN 201693385 U CN201693385 U CN 201693385U
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- interconnecting piece
- middle interconnecting
- base
- inner chamber
- self
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Abstract
The utility model discloses a reaming fixture with the automatic centering and floating functions. The whole fixture comprises a base, a middle connecting part, a pressure plate and a gripping head, wherein the bottom of the base is fixed on the worktable of a drill lathe; a spherical inner chamber is formed at the upper part of the base; the middle connecting part is arranged in the spherical inner chamber and forms a spherical cap-shaped structure; the spherical cap-shaped structure and the spherical inner chamber are matched with each other to form a ball joint; the upper surface of the middle connecting part is slightly lower than that of the base to form a moving gap; the gripping head is positioned in the middle of the middle connecting part; and the ring-shaped pressure plate for limiting the moving range of the middle connecting part is mounted on the upper surface of the base. In short, the utility model provides the reaming fixture with the automatic centering and floating functions, which can automatically regulate the axial lead of a cutter to coincide with that of a workpiece, thereby considerably improving the machining precision and promoting the processing quality of finished products.
Description
Technical field
The utility model relates to machining equipment, particularly a kind of reaming jig with self-centering float function.
Background technology
Automobile distributor controlled shell 1 ' endoporus be generally two copper-base powder metallurgy oiliness bearings 2 being pressed in shell inner cavity ', its structure as shown in Figure 1, two oiliness bearing 2 ' length of supports are bigger, because of the requirement on using, the endoporus required precision is very high, and precision will reach more than the H7.Such as: FDW276 ignition distributor endoporus is φ 12
, length of support is 67.7, axiality is in 0.015.
Adding man-hour, if workpiece is installed on the conventional brace and processes, anchor clamps are fixed on the Drilling machines bench.At this, because the foozle of drilling machine, the drill press spindle axial line can not be vertical ideally with workbench, but an angular error α ' is arranged; When making anchor clamps simultaneously, because foozle, the workpiece installing hole can not be vertical ideally with the anchor clamps bottom surface, but an angular error α is arranged ".When reality processing endoporus, there is α '+α " angular error in workpiece axial line and reamer axial line (drill press spindle axial line) disalignment like this.The existence of this error can produce following phenomenon: in whole fraising process, chipping allowance is inhomogeneous, and the processing metapore is not round, surface roughness is poor, and there is tapering in the hole, and is big near drill press spindle one stomidium, less than normal by the work you, thereby cause the shell endoporus overproof, scrap more.Such shell is contained on the ignition distributor, not only can leakage of oil, and spark rocks and influences engine performance in the time of also can causing igniting.This phenomenon is a difficult problem in my company not only, also is a difficult problem in other factory of the same trade always.
The utility model content
At the problems referred to above, the utility model has designed a kind of reaming jig with self-centering float function, it can adjust overlapping of cutter axial line and workpiece axial line automatically in the fraising process, and then can increase substantially machining accuracy, promotes the crudy of finished product.
For achieving the above object, the utility model is by the following technical solutions:
A kind of reaming jig with self-centering float function is characterized in that: whole anchor clamps are made up of base, middle interconnecting piece, pressing plate and chuck; Wherein the base bottom is fixed on the Drilling machines bench, and base top is provided with a sphere inner chamber, and described middle interconnecting piece is being set in the sphere inner chamber; Described middle interconnecting piece is spherical crown shape structure, and this spherical crown shape structure cooperates the formation ball-joint with the sphere inner chamber; Described middle interconnecting piece upper surface forms a free gap a little less than base upper surface, and described chuck in the interfix of middle interconnecting piece; Described base upper surface installation one is used for the annular pressing plate of spacing middle interconnecting piece scope of activities.
Above-mentioned free gap scope is 0.5 ~ 1.5mm.
Above-mentioned annular pressing plate endoporus aperture is less than the maximum gauge of middle interconnecting piece spherical crown shape structure.
Above-mentioned chuck is arranged in the middle of the middle interconnecting piece by several screw location.
Above-mentioned pressing plate is arranged on base upper surface by several screw location.
Middle interconnecting piece of the present utility model and pedestal are the ball-joint structure, form spherical floating anchor clamps, and this structure is provided with, and make middle interconnecting piece can drive the relative together pedestal of chuck and freely swing.At this, for guaranteeing that the relative base of middle interconnecting piece has certain activity surplus, middle interconnecting piece upper surface of the present utility model is a little less than the base upper surface setting, while is also excessive for fear of both activity surpluses, is used for the pressing plate of spacing middle interconnecting piece scope of activities in base upper surface installation one.
The utility model adds man-hour in fraising, because the ball-joint structure of middle interconnecting piece and base, make workpiece that the free degree of three activities be arranged, workpiece can follow chuck and middle interconnecting piece is swung in 360 ° of scopes around pedestal sphere lumen centers line together synchronously, making in the fraising process cutter axial line adjust automatically and remain with the workpiece axial line overlaps, thoroughly eliminated the foozle of drilling machine and anchor clamps, and then the chipping allowance that guarantees distributor housing endoporus in the fraising process is even, endoporus upper and lower side zero draft, the aperture can guarantee 7 class precisions, oiliness bearing endoporus concentricity is in 0.015 up and down, surface roughness is more than 0.8, friction in the process.
The utility model chuck is contained on the middle interconnecting piece, and chuck shape and size can be decided according to the ignition distributor or the processing object of different model.
The utility model anchor clamps are not only applicable to distributor housing processing, equally are applicable to the similarly endoporus fine finishining of other part of structure yet, and very big promotional value is arranged.
Description of drawings
The structural representation of Fig. 1, distributor housing endoporus;
Fig. 2, structural representation of the present utility model.
The specific embodiment
As shown in Figure 2, a kind of reaming jig with self-centering float function, whole anchor clamps are made up of base 1, middle interconnecting piece 2, pressing plate 3 and chuck 4.
Wherein base 1 bottom is fixed on the Drilling machines bench, and base 1 top is provided with a sphere inner chamber 11, and described middle interconnecting piece 2 is being set in the sphere inner chamber 11.
Described middle interconnecting piece 2 is spherical crown shape structure, and this spherical crown shape structure cooperates the formation ball-joint with sphere inner chamber 11.Described middle interconnecting piece upper surface 21 forms a free gap h a little less than base upper surface 12, and in the present embodiment, free gap h scope is 0.5 ~ 1.5mm.Described chuck 4 is being located by several screws 5 in the centre of described middle interconnecting piece 2.
Described base upper surface 12 is installed an annular pressing plate 3 that is used for spacing middle interconnecting piece 2 scopes of activities by several screws 5, and annular pressing plate 3 endoporus apertures are less than the maximum gauge of middle interconnecting piece 2 spherical crown shape structures.
Middle interconnecting piece 2 of the present utility model is the ball-joint structure with pedestal 1, and both form spherical floating anchor clamps, and this structure is provided with, and makes middle interconnecting piece 2 can drive the relative together pedestal 1 of chuck 4 and freely swings.At this, for guaranteeing that middle interconnecting piece 2 relative bases 1 have certain activity surplus, middle interconnecting piece upper surface 21 of the present utility model is provided with a little less than base upper surface 12, while is also excessive for fear of both activity surpluses, is used for the annular pressing plate 3 of spacing middle interconnecting piece 2 scopes of activities in base upper surface 12 installations one.
The utility model adds man-hour in fraising, because the ball-joint structure of middle interconnecting piece 2 and base 1, make workpiece 6 that the free degree of three activities be arranged, workpiece 6 can follow chuck 4 and middle interconnecting piece 2 is swung in 360 ° of scopes around pedestal 1 sphere inner chamber 11 center lines together synchronously, making in the fraising process cutter axial line adjust automatically and remain with workpiece 6 axial lines overlaps, thoroughly eliminated the foozle of drilling machine and anchor clamps, and then the chipping allowance that guarantees distributor housing endoporus in the fraising process is even, endoporus upper and lower side zero draft, the aperture can guarantee 7 class precisions, oiliness bearing endoporus concentricity is in 0.015 up and down, surface roughness is more than 0.8, friction in the process.
The utility model chuck 4 is contained on the middle interconnecting piece 2, and chuck 2 shapes and size can be decided according to the ignition distributor or the processing object of different model.
The utility model anchor clamps are not only applicable to distributor housing processing, equally are applicable to the similarly endoporus fine finishining of other part of structure yet, and very big promotional value is arranged.
Claims (5)
1. reaming jig with self-centering float function, it is characterized in that: whole anchor clamps are made up of base, middle interconnecting piece, pressing plate and chuck; Wherein the base bottom is fixed on the Drilling machines bench, and base top is provided with a sphere inner chamber, and described middle interconnecting piece is being set in the sphere inner chamber; Described middle interconnecting piece is spherical crown shape structure, and this spherical crown shape structure cooperates the formation ball-joint with the sphere inner chamber; Described middle interconnecting piece upper surface forms a free gap a little less than base upper surface, and described chuck in the interfix of middle interconnecting piece; Described base upper surface installation one is used for the annular pressing plate of spacing middle interconnecting piece scope of activities.
2. a kind of reaming jig with self-centering float function as claimed in claim 1 is characterized in that: described free gap scope is 0.5 ~ 1.5mm.
3. a kind of reaming jig with self-centering float function as claimed in claim 1 or 2 is characterized in that: described annular pressing plate endoporus aperture is less than the maximum gauge of middle interconnecting piece spherical crown shape structure.
4. a kind of reaming jig with self-centering float function as claimed in claim 1 is characterized in that: described chuck is arranged in the middle of the middle interconnecting piece by several screw location.
5. a kind of reaming jig with self-centering float function as claimed in claim 1 is characterized in that: described pressing plate is arranged on base upper surface by several screw location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202475750U CN201693385U (en) | 2010-07-06 | 2010-07-06 | Reaming fixture with automatic centering and floating functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202475750U CN201693385U (en) | 2010-07-06 | 2010-07-06 | Reaming fixture with automatic centering and floating functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201693385U true CN201693385U (en) | 2011-01-05 |
Family
ID=43394630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202475750U Expired - Fee Related CN201693385U (en) | 2010-07-06 | 2010-07-06 | Reaming fixture with automatic centering and floating functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201693385U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862079A (en) * | 2012-10-20 | 2013-01-09 | 无锡蠡湖叶轮制造有限公司 | Automatic centering compressing clamp |
| CN106271341A (en) * | 2016-11-18 | 2017-01-04 | 东莞市耀野自动化有限公司 | A kind of air-flotation type collet fixture |
| CN107498434A (en) * | 2017-09-28 | 2017-12-22 | 广州亿铭工业自动化科技有限公司 | A kind of automatic honing device and processing method |
| CN109261938A (en) * | 2017-07-17 | 2019-01-25 | 科华控股股份有限公司 | Suction pouring inhales the floating compressing structure of casting chamber pressure type cylinder |
| CN114770575A (en) * | 2022-05-05 | 2022-07-22 | 北京汽车集团越野车有限公司 | Universal type tail end clamping device |
-
2010
- 2010-07-06 CN CN2010202475750U patent/CN201693385U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862079A (en) * | 2012-10-20 | 2013-01-09 | 无锡蠡湖叶轮制造有限公司 | Automatic centering compressing clamp |
| CN106271341A (en) * | 2016-11-18 | 2017-01-04 | 东莞市耀野自动化有限公司 | A kind of air-flotation type collet fixture |
| CN106271341B (en) * | 2016-11-18 | 2018-05-22 | 东莞市耀野自动化有限公司 | A kind of air-flotation type collet fixture |
| CN109261938A (en) * | 2017-07-17 | 2019-01-25 | 科华控股股份有限公司 | Suction pouring inhales the floating compressing structure of casting chamber pressure type cylinder |
| CN107498434A (en) * | 2017-09-28 | 2017-12-22 | 广州亿铭工业自动化科技有限公司 | A kind of automatic honing device and processing method |
| CN114770575A (en) * | 2022-05-05 | 2022-07-22 | 北京汽车集团越野车有限公司 | Universal type tail end clamping device |
| CN114770575B (en) * | 2022-05-05 | 2023-06-20 | 北京汽车集团越野车有限公司 | Universal terminal clamping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20130706 |