CN104874864A - Reamer bar - Google Patents
Reamer bar Download PDFInfo
- Publication number
- CN104874864A CN104874864A CN201410071293.2A CN201410071293A CN104874864A CN 104874864 A CN104874864 A CN 104874864A CN 201410071293 A CN201410071293 A CN 201410071293A CN 104874864 A CN104874864 A CN 104874864A
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- sleeve
- outer sleeve
- reamer
- bar body
- 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.)
- Pending
Links
Abstract
A reamer bar comprises a bar body and an inner sleeve. The bar body comprises a tapered handle and an outer sleeve. A supporting block is fixed in the outer sleeve, the inner sleeve is mounted in the outer sleeve, the inner sleeve and the outer sleeve are connected through a hinge pin, the hinge pin and the inner sleeve are in clearance fit, and the hinge pin and the outer sleeve are in interference fit. A spherical indenter is arranged at one end of the inner sleeve, the end surface of the supporting blocks is a spherical surface, and the spherical indenter can be in contact with the spherical surface of the supporting block. According to the invention, the bar body and the inner sleeve for mounting of a reamer are movably connected, so that the influence, of the coaxial error of a machine tool tailstock sleeve and a spindle, on the reamed hole quality is eliminated, the reamer bar has the advantages of being simple in structure, convenient to use, low in fabrication cost and capable of being widely applied to the mass reamed hole operation.
Description
Technical field
The present invention relates to the knife bar for fixing reamer in a kind of reaming operations.
Background technology
Often need to carry out reaming operations in the processing of part, in the processing of reality, by in the taper hole of the taper shank insertion machine bed barrel of tail stock of chucking reamer, adjust barrel of tail stock axis again and main-shaft axis coincides, and the main-shaft axis of general lathe and tailstock axis are difficult to control within 0.02mm, therefore add man-hour in batch fraising, due to the precision of lathe itself, and quality and the efficiency of workpiece fraising can be had a strong impact on.
Summary of the invention
The invention solves above technical problem, provide a kind of structure simple, easy to use, cost is lower, automatically can correct the reamer holder of tail stock axis and main-shaft axis decentraction problem.
For solving the problems of the technologies described above, present invention employs a kind of reamer holder, comprise knife bar body and inner sleeve, described knife bar body is made up of taper shank and outer sleeve, described outer sleeve internal fixtion is provided with back-up block, described inner sleeve is arranged in outer sleeve, pinned connection is passed through between described inner sleeve and outer sleeve, it is matched in clearance between described bearing pin and inner sleeve, interference fit is adopted between described bearing pin and outer sleeve, described inner sleeve one end is provided with spherical indenter, and the end face of described back-up block is sphere, described spherical indenter can with the sphere-contact of back-up block.
The beneficial effect that the present invention has: the knife bar body in this knife bar is be flexibly connected with what adopt between the inner sleeve for installing reamer, in reaming procedure, reamer automatically adjusts its center line overlap with centerline hole by the trace skew of inner sleeve, thus eliminates because tail stock sleeve and main shaft coaxiality error are on the impact of the quality that reams; This lever structure is simple, easy to use, low cost of manufacture, can be widely used in batch reaming operations.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1, knife bar body; 2, inner sleeve; 3, bearing pin; 4, back-up block; 5, spherical indenter; 11, taper shank; 12, outer sleeve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
With reference to Fig. 1, a kind of reamer holder, comprise knife bar body 1 and inner sleeve 2, knife bar body 1 is made up of taper shank 11 and outer sleeve 12, outer sleeve 12 internal fixtion is provided with back-up block 4, inner sleeve 2 is arranged in outer sleeve 12, be connected by bearing pin 3 between inner sleeve 2 with outer sleeve 12, it is matched in clearance between bearing pin 3 and inner sleeve 2, interference fit is adopted between bearing pin 3 and outer sleeve 12, inner sleeve 2 one end is provided with spherical indenter 5, and the end face of back-up block 4 is sphere, spherical indenter 5 can with the sphere-contact of back-up block 4.
In the present invention, what adopt between knife bar body 1 with the inner sleeve 2 for installing reamer is be flexibly connected, in reaming procedure, reamer automatically adjusts its center line overlap with centerline hole by the trace skew of inner sleeve 2, thus eliminates because tail stock sleeve and main shaft coaxiality error are on the impact of the quality that reams.
Claims (1)
1. a reamer holder, it is characterized in that: comprise knife bar body (1) and inner sleeve (2), described knife bar body (1) is made up of taper shank (11) and outer sleeve (12), described outer sleeve (12) internal fixtion is provided with back-up block (4), described inner sleeve (2) is arranged in outer sleeve (12), be connected by bearing pin (3) between described inner sleeve (2) with outer sleeve (12), be matched in clearance between described bearing pin (3) and inner sleeve (2), interference fit is adopted between described bearing pin (3) and outer sleeve (12), described inner sleeve (2) one end is provided with spherical indenter (5), the end face of described back-up block (4) is sphere, described spherical indenter (5) can with the sphere-contact of back-up block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071293.2A CN104874864A (en) | 2014-03-02 | 2014-03-02 | Reamer bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071293.2A CN104874864A (en) | 2014-03-02 | 2014-03-02 | Reamer bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104874864A true CN104874864A (en) | 2015-09-02 |
Family
ID=53942684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410071293.2A Pending CN104874864A (en) | 2014-03-02 | 2014-03-02 | Reamer bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104874864A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855578A (en) * | 2016-06-28 | 2016-08-17 | 常州信息职业技术学院 | Combined boring rod device convenient to adjust |
-
2014
- 2014-03-02 CN CN201410071293.2A patent/CN104874864A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855578A (en) * | 2016-06-28 | 2016-08-17 | 常州信息职业技术学院 | Combined boring rod device convenient to adjust |
| CN105855578B (en) * | 2016-06-28 | 2017-12-15 | 常州信息职业技术学院 | A kind of combination boring bar device being conveniently adjusted |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150902 |