CN203635954U - Boring cutter - Google Patents
Boring cutter Download PDFInfo
- Publication number
- CN203635954U CN203635954U CN201320536441.4U CN201320536441U CN203635954U CN 203635954 U CN203635954 U CN 203635954U CN 201320536441 U CN201320536441 U CN 201320536441U CN 203635954 U CN203635954 U CN 203635954U
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- CN
- China
- Prior art keywords
- boring cutter
- cutter body
- hole
- boring
- positioning hole
- 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 - Lifetime
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Abstract
The utility model relates to a boring cutter. The boring cutter comprises a boring cutter body, wherein a threaded hole which is used for fixing a pressing cutter clamp is formed in the circumference of the boring cutter body; a positioning hole and two locking holes, which are not communicated with the threaded hole, are formed in one end, connected with a machine tool, of the boring cutter body; the positioning hole is positioned in the center of one end, fixedly connected with the machine tool, of the boring cutter body; the two locking holes are symmetrically formed in two sides of the positioning hole; counter bored holes for installing M8 nuts are formed in the other end of the boring cutter body. According to the boring cutter, by the improvement of the structure and quantity of the positioning hole and the locking holes in the boring cutter body, the positioning hole and the locking holes are not communicated with the threaded hole which is used for fixing the pressing cutter clamp, so that the solid size of the boring cutter body is increased, and the quantity of threads of the threaded hole is increased. Therefore, the frequent phenomenon of screw loose can be eliminated, the service life of the boring cutter body is prolonged, and the machining accuracy of a workpiece can be improved.
Description
Technical field
The utility model relates to field of machining, is specifically related to a kind of boring cutter body.
Background technology
One end that current boring cutter body is fixedly connected with lathe is provided with a positioning lock tieholen.This positioning lock tieholen is not only large and dark, and also with crossing for the screw hole of fixation pressure folder, so that boring cutter body hollow out volume is large, screwed hole screw thread quantity is few.In the time that boring is less than the endoporus of 90 millimeters, for the easily sliding tooth of screw of fixing push type broach folder, make cutter loosening.This has not only reduced boring cutter body service life, has also affected processing dimension and precision.
Utility model content
The purpose of this utility model is to provide a kind of boring cutter body, and this boring cutter body has been avoided the crossing of positioning lock tieholen and screwed hole for fixing push type broach folder, has increased the quantity of screwed hole screw thread.Not only can eliminate frequently sliding dental phenomenon, improve boring cutter body service life, can also improve Workpiece Machining Accuracy.
For achieving the above object, the utility model has adopted following technical scheme: a kind of boring cutter body, comprise boring cutter body body, described boring cutter body body circumference is provided with the screwed hole for fixing push type broach folder, one end that described boring cutter body body is fixedly connected with lathe is provided with locating hole and locking hole, is provided with gap, is not communicated with between described locating hole and locking hole and screwed hole for fixing push type broach folder.
The center of one end that the boring cutter body body described in described locating hole is positioned at is fixedly connected with lathe; Described locking hole is 2, and is symmetrically distributed in locating hole both sides.
The other end of described boring cutter body body is provided with the counterbore for filling M8 nut.
On locking hole described at least one, be installed with the projection for locating boring cutter body body.
Described counterbore is 2, and is uniformly distributed.
As shown from the above technical solution, the utility model, by the locating hole on improvement boring cutter body body and structure and the quantity of locking hole, makes locating hole and locking hole and does not communicate for the screwed hole of fixing push type broach folder.Thereby increase the entity volume of boring cutter body body, the quantity of screwed hole screw thread is increased.This not only can eliminate frequently sliding dental phenomenon, improve boring cutter body service life, can also improve the machining accuracy of workpiece.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is top view of the present utility model;
Fig. 3 is upward view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
A kind of boring cutter body as shown in Figure 1, Figure 2, Figure 3 shows, comprise boring cutter body body 1, on boring cutter body body 1 circumference, be provided with the screwed hole 2 for fixing push type broach folder, one end that boring cutter body body 1 is fixedly connected with lathe is provided with locating hole 3 and locking hole 4, gapped between locating hole 3 and locking hole 4 and the screwed hole 2 for fixing push type broach folder, be not communicated with.Specifically, by pressing from both sides 90 ° of directions at push type broach, screwed hole 2 is set, and reduces the degree of depth and their position of change of locating hole 3 and locking hole 4.Thereby locating hole 3 and locking hole 4 are not communicated with screwed hole 2, have increased the volume of boring cutter body body 1 entity part.So just can increase the quantity of screwed hole 2 screw threads, push type broach folder can be more firmly fixed on boring cutter body body, be difficult for stripped thread.
Further, locating hole 3 is positioned at the center of one end that boring cutter body body 1 is fixedly connected with lathe, for fixing boring cutter body body; Locking hole 4 is 2, and is symmetrically distributed in locating hole 3 both sides.
Further, the other end of boring cutter body body 1 is provided with the counterbore 5 for filling M8 nut.Counterbore 5 is 2, and is uniformly distributed.The position of counterbore 5 arranges according to locking hole 4 positions are corresponding, and the aperture of counterbore 5 is less, is applicable to dress M8 nut.
Further, at least one locking hole 4, be installed with the projection 41 for locating boring cutter body body 1.By set firmly projection on locking hole, can make boring cutter body body more firm, especially axially do not rotate.
In sum, the utility model, by the locating hole on improvement boring cutter body body and structure and the quantity of locking hole, makes locating hole and locking hole and does not communicate for the screwed hole of fixing push type broach folder.Thereby increase the entity volume of boring cutter body body, increased the quantity of screwed hole screw thread.This not only can eliminate frequently sliding dental phenomenon, improve boring cutter body service life, can also improve the machining accuracy of workpiece.
Above-described embodiment is described preferred embodiment of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (5)
1. a boring cutter body, comprise boring cutter body body (1), described boring cutter body body (1) circumference is provided with the screwed hole (2) for fixing push type broach folder, it is characterized in that: one end that described boring cutter body body (1) is fixedly connected with lathe is provided with locating hole (3) and locking hole (4), and be provided with gap between described locating hole (3), locking hole (4) and screwed hole (2).
2. boring cutter body according to claim 1, is characterized in that: the center of one end that the boring cutter body body (1) described in described locating hole (3) is positioned at is fixedly connected with lathe; Described locking hole (4) is 2, and is symmetrically distributed in locating hole (3) both sides.
3. boring cutter body according to claim 1, is characterized in that: the other end of described boring cutter body body (1) is provided with the counterbore (5) for filling M8 nut.
4. boring cutter body according to claim 2, is characterized in that: the locking hole (4) described at least one is upper, is installed with the projection (41) for locating boring cutter body body (1).
5. boring cutter body according to claim 3, is characterized in that: described counterbore (5) is 2, and is uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536441.4U CN203635954U (en) | 2013-08-30 | 2013-08-30 | Boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536441.4U CN203635954U (en) | 2013-08-30 | 2013-08-30 | Boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203635954U true CN203635954U (en) | 2014-06-11 |
Family
ID=50867234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320536441.4U Expired - Lifetime CN203635954U (en) | 2013-08-30 | 2013-08-30 | Boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203635954U (en) |
-
2013
- 2013-08-30 CN CN201320536441.4U patent/CN203635954U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |