CN201988945U - Special boring machine tool - Google Patents
Special boring machine tool Download PDFInfo
- Publication number
- CN201988945U CN201988945U CN2011200433226U CN201120043322U CN201988945U CN 201988945 U CN201988945 U CN 201988945U CN 2011200433226 U CN2011200433226 U CN 2011200433226U CN 201120043322 U CN201120043322 U CN 201120043322U CN 201988945 U CN201988945 U CN 201988945U
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- CN
- China
- Prior art keywords
- boring machine
- machine tool
- fore
- jacking cylinder
- bushing
- 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.)
- Expired - Fee Related
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Abstract
A special boring machine tool relates to a boring machine for machining work, and comprises a base, a big boring bushing, a small boring bushing, a pressing plate, two thread bushings and two puller bolts. The special boring machine tool is characterized in that jacking cylinders are sleeved in holes arranged at the fronts of the thread bushings in a movable fit mode , the front end of each jacking cylinder is a hemispheroid, the cylinder back end faces of the back portions of the jacking cylinders are contacted with the front end faces of the puller bolts sleeved in the thread bushings in abutted mode, and the spherical surfaces of the hemispheroids of the upper jacking cylinder and the lower jacking cylinder are contacted with a small annular disk in abutted mode. The special boring machine tool has the advantages that the upper jacking cylinder, the lower jacking cylinder and the small annular disk adopt point contact and compaction, and connecting rods can not generate twisting force, thereby guaranteeing machining precision.
Description
Technical field:
The utility model relates to the machining boring machine, particularly a kind of special boring mill frock.
Background technology:
Bar linkage structure is that a large circle dish and a small circle ring dish are formed by middle connection handle disjunctor, and general large circle dish is bigger than small circle ring disc thickness.To carry out boring to both endoporus after two kinds of circle ring disk plane processing, must realize processing by special boring mill, special tooling during batch process.Existing special tooling is to be installed on the L shaped pedestal in boring head the place ahead to offer two horizontal through hole, the fixing big bushing of difference fit, little bushing in two through holes, the large circle dish is pressed on the big bushing end face with bolt clip plate locatees, to guarantee that end face is vertical each other with centerline hole.And the small circle ring dish can not be used pressing plate, because the reason of its thickness small end face dislocation and plane mismachining tolerance, can't be with the isoplanar as basal plane, workpiece can only be a benchmark with large circle dish end face.Thereby small circle ring dish location only is that the puller bolt that purpose is fixed in the thread bush of little bushing upper and lower on the pedestal is located with the clamping, by puller bolt small circle ring dish cylindrical held out against up and down and implements the location.
Find in the processing because small circle ring dish cylindrical can't be processed, cause its arc surface irregular, the puller bolt end face is that plane and irregular arc surface hold out against normal generation skew force, this skew force impels connecting rod to produce twisting resistance, the twisting resistance consequence causes the deflection of small circle ring dish, makes circle ring disk end face and centerline hole after the processing produce the error of perpendicularity.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned defective, and a kind of special boring mill frock is provided.
Scheme of the present utility model is: frock comprises pedestal, big bushing, little bushing, pressing plate, two thread bush, two puller bolts, it is characterized in that: be with the fore-set body in the thread bush front hole movingly, fore-set body front end is a hemisphere, fore-set body rear portion cylinder rear end face contacts with puller bolt front end face top-closed structure in being linked in thread bush, and the hemisphere sphere of two fore-set bodies is connected with the contact of small circle ring dish top-closed structure up and down.
Advantage of the present utility model is: two fore-set bodies contact with small circle ring dish enforcement point and compress up and down, and connecting rod can not produce twisting resistance, has guaranteed machining accuracy.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment:
The utility model comprises pedestal 6, big bushing 7, little bushing 8, pressing plate 2, two thread bush 5, two puller bolts, it is characterized in that: be with fore-set body 4 movingly in thread bush 5 front hole, fore-set body 4 front ends are hemisphere, fore-set body 4 rear portion cylinder rear end faces contact with puller bolt front end face top-closed structure in being linked in thread bush 5, and the hemisphere sphere of two fore-set bodies 4 is connected with the contact of small circle ring dish 3 top-closed structures up and down.
Earlier with the fixing large circle dish 1 of pressing plate, then turn puller bolt and promote fore-set body 4 spheres during clamping, regulate holding out against small circle ring dish 3 and finish workpiece clamping operation.
Claims (1)
1. special boring mill frock, comprise pedestal (6), big bushing (7), little bushing 8, pressing plate (2), two thread bush (5), two puller bolts, it is characterized in that: be with fore-set body (4) movingly in thread bush (5) front hole, fore-set body (4) front end is a hemisphere, fore-set body (4) rear portion cylinder rear end face contacts with puller bolt front end face top-closed structure in being linked in thread bush (5), and the hemisphere sphere of two fore-set bodies (4) is connected with the contact of small circle ring dish (3) top-closed structure up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200433226U CN201988945U (en) | 2011-02-21 | 2011-02-21 | Special boring machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200433226U CN201988945U (en) | 2011-02-21 | 2011-02-21 | Special boring machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201988945U true CN201988945U (en) | 2011-09-28 |
Family
ID=44665448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200433226U Expired - Fee Related CN201988945U (en) | 2011-02-21 | 2011-02-21 | Special boring machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201988945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495886A (en) * | 2013-09-29 | 2014-01-08 | 柳州明宇机械有限公司 | Connecting rod fine boring fixture |
-
2011
- 2011-02-21 CN CN2011200433226U patent/CN201988945U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495886A (en) * | 2013-09-29 | 2014-01-08 | 柳州明宇机械有限公司 | Connecting rod fine boring fixture |
| CN103495886B (en) * | 2013-09-29 | 2016-09-14 | 柳州明宇机械有限公司 | Connecting rod fixture for fine boring |
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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: 20110928 Termination date: 20150221 |
|
| EXPY | Termination of patent right or utility model |