CN212121691U - Cutter for accurately machining conical inner hole - Google Patents
Cutter for accurately machining conical inner hole Download PDFInfo
- Publication number
- CN212121691U CN212121691U CN201922366803.XU CN201922366803U CN212121691U CN 212121691 U CN212121691 U CN 212121691U CN 201922366803 U CN201922366803 U CN 201922366803U CN 212121691 U CN212121691 U CN 212121691U
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- cutter
- positioning
- sleeve
- conical
- blade
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Abstract
The utility model discloses a cutter for accurately processing a conical inner hole, which comprises a positioning cutter sleeve, a cutter bar and a cutter blade, wherein the cutter bar and the cutter blade are fixed on the positioning cutter sleeve; a cutter bar mounting hole is formed in the front end face of the positioning cutter sleeve in the axial inward direction and is located above the axis of the positioning cutter sleeve, and a conical positioning surface matched with the inner wall of a to-be-machined conical hole is machined on the side wall below the front end of the positioning cutter sleeve; the rear end of the cutter bar is inserted into the cutter bar mounting hole of the positioning cutter sleeve and is fixed through a screw, the front end of the cutter bar is fixedly provided with a blade which extends upwards, the cutting edge of the blade is positioned on the central axis of the conical positioning surface of the side wall below the front end of the positioning cutter sleeve, and the rear end of the positioning cutter sleeve is mounted on a lathe cutter frame through a connector. The utility model discloses a cutter satisfies the longer and less toper hole of diameter processing of length.
Description
Technical Field
The utility model relates to a cutter for accurate processing toper hole belongs to processing frock field.
Background
A certain product is a cylindrical part which is processed by metal materials and has an opening at one end and a closed end, the length of an inner cavity of the product is longer, and an inner bottom of the product is a conical blind hole with a smaller diameter. In the traditional process, when the inner shape of a product is processed, a numerical control cutter is usually adopted for finishing. The product has longer inner cavity length, and particularly when the inner bottom of the conical blind hole is processed, the product can bring larger vibration effect to the cutter bar, and the processing precision is difficult to ensure. If a thicker cutter bar is selected for processing, the diameter of the inner bottom of the tapered blind hole of the inner cavity of the product is smaller, so that when the inner bottom is processed, interference can occur between the thicker cutter bar and the inner hole, and the whole inner shape cannot be processed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a new construction cutter in order to solve the problem that the unable accurate machining length of traditional cutter is longer and the less toper hole of tapering.
The utility model aims at realizing through the following technical scheme:
the utility model discloses a cutter for accurately processing a conical inner hole, which comprises a positioning cutter sleeve, a cutter bar and a cutter blade, wherein the cutter bar and the cutter blade are fixed on the positioning cutter sleeve; a cutter bar mounting hole is formed in the front end face of the positioning cutter sleeve in the axial inward direction and is located above the axis of the positioning cutter sleeve, and a conical positioning surface matched with the inner wall of a to-be-machined conical hole is machined on the side wall below the front end of the positioning cutter sleeve; the rear end of the cutter bar is inserted into the cutter bar mounting hole of the positioning cutter sleeve and is fixed through a screw, the front end of the cutter bar is fixedly provided with a blade which extends upwards, the cutting edge of the blade is positioned on the central axis of the conical positioning surface of the side wall below the front end of the positioning cutter sleeve, and the rear end of the positioning cutter sleeve is mounted on a lathe cutter frame through a connector.
When an inner hole of a product is machined, the positioning cutter sleeve forms rigid support for the cutter bar, and the vibration effect of the cutter bar during machining is reduced; the problem of interference when a tool sleeve with a larger diameter is used for processing a taper hole with a small diameter is solved on the one hand through the conical positioning surface on the side wall below the front end of the positioning tool sleeve; on the other hand, when the blade advances to the center position of the inner bottom of the product, the conical positioning surface of the side wall below the front end of the positioning cutter sleeve automatically contacts with the side wall of the conical hole of the inner bottom of the product, the blade cannot continue to feed, and the cutter is automatically positioned.
Advantageous effects
The utility model discloses a cutter, simple structure, processing is convenient, satisfies the longer and less toper hole of diameter processing of length, and the machining precision is high, and the product percent of pass after the processing is high, has wide application and worth.
Drawings
FIG. 1 is a schematic structural view of the cutting tool of the present invention;
FIG. 2 is a schematic view of the use of the cutter of the present invention;
FIG. 3 is a schematic view of the tool machining end point of the present invention;
in the figures, 1-blade; 2, cutting a cutter bar; 3-screws; 4, positioning a knife sleeve; 5-products.
Detailed Description
The invention will be further described with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1, a tool for precisely machining a tapered inner hole comprises a positioning tool sleeve 4, a tool bar 2 fixed on the positioning tool sleeve 4 and a blade 1; a cutter bar mounting hole is formed in the front end face of the positioning cutter sleeve 4 in an axially inward mode and is located above the axis of the positioning cutter sleeve 4, and a conical positioning surface matched with the inner wall of a to-be-machined conical hole is machined in the side wall below the front end of the positioning cutter sleeve 4; the rear end of the cutter bar 2 is inserted into the cutter bar mounting hole of the positioning cutter sleeve 4 and is fixed through a screw 3, the front end of the cutter bar 2 is fixedly provided with the upwards extending blade 1, the cutting edge of the blade 1 is positioned on the central axis of the side wall conical positioning surface below the front end of the positioning cutter sleeve 4, and the rear end of the positioning cutter sleeve 4 is mounted on a lathe cutter frame through a connector.
FIG. 2 is a schematic view of the use of the cutter of the present invention; when 5 holes of processing product, location broach shell 4 forms the rigidity support to the cutter arbor, reduces to add man-hour the effect of quivering of cutter arbor 2.
FIG. 3 is a schematic view of the tool machining end point of the present invention; the problem of interference when a tool sleeve with a larger diameter is used for processing a taper hole with a small diameter is solved on the one hand through the conical positioning surface on the side wall below the front end of the positioning tool sleeve 4; on the other hand, when the blade 1 advances to the center position of the inner bottom of the product 5, the conical positioning surface of the side wall below the front end of the positioning knife sleeve 4 automatically contacts with the side wall of the conical hole in the product 5, the blade 1 cannot be fed continuously, and the cutter is automatically positioned.
Claims (1)
1. A cutter for accurately machining a conical inner hole is characterized in that: the cutter comprises a positioning cutter sleeve, a cutter bar and a cutter blade, wherein the cutter bar and the cutter blade are fixed on the positioning cutter sleeve; a cutter bar mounting hole is formed in the front end face of the positioning cutter sleeve in the axial inward direction and is located above the axis of the positioning cutter sleeve, and a conical positioning surface matched with the inner wall of a to-be-machined conical hole is machined on the side wall below the front end of the positioning cutter sleeve; the rear end of the cutter bar is inserted into the cutter bar mounting hole of the positioning cutter sleeve and is fixed through a screw, the front end of the cutter bar is fixedly provided with a blade which extends upwards, the cutting edge of the blade is positioned on the central axis of the conical positioning surface of the side wall below the front end of the positioning cutter sleeve, and the rear end of the positioning cutter sleeve is mounted on a lathe cutter frame through a connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922366803.XU CN212121691U (en) | 2019-12-25 | 2019-12-25 | Cutter for accurately machining conical inner hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922366803.XU CN212121691U (en) | 2019-12-25 | 2019-12-25 | Cutter for accurately machining conical inner hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212121691U true CN212121691U (en) | 2020-12-11 |
Family
ID=73667312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922366803.XU Active CN212121691U (en) | 2019-12-25 | 2019-12-25 | Cutter for accurately machining conical inner hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212121691U (en) |
-
2019
- 2019-12-25 CN CN201922366803.XU patent/CN212121691U/en active Active
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