CN215545188U - 90-degree conical counter boring cutter - Google Patents
90-degree conical counter boring cutter Download PDFInfo
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- CN215545188U CN215545188U CN202121541098.3U CN202121541098U CN215545188U CN 215545188 U CN215545188 U CN 215545188U CN 202121541098 U CN202121541098 U CN 202121541098U CN 215545188 U CN215545188 U CN 215545188U
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- guide pin
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Abstract
The utility model provides a 90-degree conical counter boring cutter, which comprises a cutter handle, a cutter head, a blade and a guide pin, wherein the diameter of the guide pin is matched with the aperture of a part to be machined; the tool bit bilateral symmetry is equipped with the blade mounting groove, and the tank bottom installation face of blade mounting groove is parallel with the central axis of tool bit and centrosymmetric setting, perpendicular with the cylinder radial cross-section of tool bit rear end, is equipped with the fastener mounting hole on the tank bottom installation face, and the blade passes through the fastener to be fixed on the tool bit. The utility model can realize the processing of parts with different apertures by manufacturing the guide pins with different sizes, and has good universality; the guide pin and the blade which are out of work can be conveniently replaced, the product quality and the production progress are guaranteed, and the consumption cost of the cutter is reduced.
Description
Technical Field
The utility model relates to the technical field of spot facing machining, in particular to a 90-degree conical spot facing cutter which is used for machining a conical hole in a part on a radial drilling machine.
Background
At present, one of tools for processing conical holes by using a radial drilling machine in the market is to align the center manually without using a guide pin; the other method is to align the center of the cutter by the working end of the guide pin, but the guide pin of the cutter and the cutter are in an integral structure, and the blade and the cutter are fixedly connected by welding.
The second cutter can only guide and process tapered holes for parts with one aperture, and only can buy cutters with various models for parts with different apertures; and when the guide pin and the blade are worn or fail, the whole cutter is scrapped and cannot be used, and the consumption cost of the cutter is higher.
Disclosure of Invention
The utility model provides a 90-degree conical spot facing cutter, aiming at solving the problems of poor universality and high consumption cost of cutters for machining conical holes by using a radial drilling machine.
Therefore, the technical scheme of the utility model is as follows: the utility model provides a 90 toper counter boring cutter, includes handle of a knife, tool bit, blade and uide pin, the diameter of uide pin suits its characterized in that with the aperture of waiting to process the part: the knife handle and the knife head are of an integrated structure,
the tool bit front end is the toper structure, the rear end is the cylinder structure, and the contained angle of toper structure is 90, wherein: the rear end face of the cutter head is integrally connected with the cutter handle, the central shaft is positioned on the same straight line, the center of the front end face of the cutter head is axially provided with a guide hole extending towards the rear end, a guide pin is inserted into the guide hole of the cutter head, a cylindrical structure of the cutter head is radially provided with a positioning threaded hole communicated with the guide hole, the guide pin is axially provided with a corresponding positioning groove, and the guide pin is fixed through a fastener;
the tool bit bilateral symmetry is equipped with the blade mounting groove, and the tank bottom installation face of blade mounting groove is parallel with the central axis of tool bit and centrosymmetric setting, perpendicular with the cylinder radial cross-section of tool bit rear end, is equipped with the fastener mounting hole on the tank bottom installation face, and the blade passes through the fastener to be fixed on the tool bit.
The technical scheme is further improved as follows: the cutting edge of the blade exceeds the outer contour of the cutter head by 0.5mm-1mm, and the cutting edge of the blade is a structure which extends along one side surface and is formed by gradually reducing the thickness of the other side surface. The purpose of the arrangement is that if the height exceeds too high, the contact surface between the blade and the mounting surface at the bottom of the groove becomes small, the overhanging extension of the blade becomes long, and the blade is easy to break; too short a knife cut, too large, may cause vibrations; the arrangement of the blade edge part can prevent the back angle of the blade (namely the angle formed by gradually reducing the thickness of the other side surface of the blade edge part) from contacting with a workpiece before the blade edge, which causes vibration and leads to abnormal use of the cutter.
The technical scheme is further improved as follows: the blades on the two sides are seen from the axial direction, the center lines of the blades in the thickness direction on the two sides are perpendicularly intersected with the center line of the cutter head, the cutting edges of the blades on the two sides are arranged on the two sides of the center line in the thickness direction in a centrosymmetric mode, and vibration caused by imbalance can be avoided.
The technical scheme is further improved as follows: the guide pin is preset with various specifications according to the aperture so as to adapt to the processing of products with different apertures.
The technical scheme is further improved as follows: the rear end of handle of a knife is equipped with installation connecting portion, and the side that conveniently passes through transitional coupling is solid formula handle of a knife and is installed on the rocking arm drilling machine.
Has the advantages that: the utility model can process a plurality of 90-degree conical holes with different guide hole diameters by manufacturing the guide pins with different sizes, and has good universality; but also can conveniently replace the failed guide pin and the failed blade, ensure the product quality and the production progress and reduce the consumption cost of the cutter.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is an integral structure of the tool shank and the tool bit of the present invention.
Fig. 5 is a view from a-a of fig. 4.
Fig. 6 is a structural view of a guide pin of the present invention.
Fig. 7 is a block diagram of a blade of the present invention.
Shown in the figure: 1. a knife handle; 11. mounting the connecting part; 2. a cutter head; 21. a guide hole; 22. positioning the threaded hole; 23. a blade mounting groove; 24. a fastener mounting hole; 3. a blade; 31. a blade portion; 4. a guide pin; 41. positioning a groove; 42. a working end; 5. a fastener.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, but the embodiment should not be construed as limiting the present invention.
The utility model is shown in figures 1 to 7:
a90-degree conical spot facing cutter comprises a cutter handle 1, a cutter head 2, a blade 3 and a guide pin 4, wherein the diameter of the guide pin is matched with the aperture of a part to be processed, the cutter handle 1 and the cutter head 2 are of an integrated structure,
the tool bit front end is the toper structure, the rear end is the cylinder structure, and the contained angle of toper structure is 90, wherein: the rear end face of the tool bit 2 is integrally connected with the tool shank 1, the central axis is positioned on the same straight line, the center of the front end face of the tool bit 2 is axially provided with a guide hole 21 extending towards the rear end, a guide pin is inserted into the guide hole of the tool bit, a cylindrical structure of the tool bit is radially provided with a positioning threaded hole 22 communicated with the guide hole, a corresponding positioning groove 41 is axially arranged on the guide pin 4, and the guide pin is fixed through a fastener 5;
The cutting edge part 31 of the blade 3 exceeds the outer contour of the cutter head by 0.5mm-1mm, and the cutting edge part of the blade is a structure which extends along one side surface and is formed by gradually reducing the thickness of the other side surface. The purpose of the arrangement is that if the height exceeds too high, the contact surface between the blade and the mounting surface at the bottom of the groove becomes small, the overhanging extension of the blade becomes long, and the blade is easy to break; too short a knife cut, too large, may cause vibrations; the arrangement of the blade edge part can prevent the back angle of the blade edge (namely the angle formed by the gradual reduction of the thickness of the other side surface of the blade edge part) from contacting with a workpiece before the blade edge, which causes vibration and leads to the abnormal use of the cutter.
As shown in fig. 3, when the blades 3 on both sides are viewed from the axial direction, the thickness direction center lines B of the blades on both sides are perpendicular to the center line of the cutter head, and the cutting edges of the blades on both sides are arranged in a centrosymmetric manner on both sides of the thickness direction center line B, so that the vibration caused by imbalance can be avoided.
The guide pin 4 is preset with various specifications according to the aperture so as to adapt to the processing of products with different apertures.
The rear end of the tool shank 1 is provided with an installation connecting part 11, so that the tool shank can be conveniently installed on a rocker arm drilling machine through a side fixing type tool shank in transition connection.
Those skilled in the art will appreciate that the details of the present invention are not described in detail herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a 90 toper counter boring cutter, includes handle of a knife, tool bit, blade and uide pin, the diameter of uide pin suits its characterized in that with the aperture of waiting to process the part: the knife handle and the knife head are of an integrated structure,
the tool bit front end is the toper structure, the rear end is the cylinder structure, and the contained angle of toper structure is 90, wherein: the rear end face of the cutter head is integrally connected with the cutter handle, the central shaft is positioned on the same straight line, the center of the front end face of the cutter head is axially provided with a guide hole extending towards the rear end, a guide pin is inserted into the guide hole of the cutter head, a cylindrical structure of the cutter head is radially provided with a positioning threaded hole communicated with the guide hole, the guide pin is axially provided with a corresponding positioning groove, and the guide pin is fixed through a fastener;
the tool bit bilateral symmetry is equipped with the blade mounting groove, and the tank bottom installation face of blade mounting groove is parallel with the central axis of tool bit and centrosymmetric setting, perpendicular with the cylinder radial cross-section of tool bit rear end, is equipped with the fastener mounting hole on the tank bottom installation face, and the blade passes through the fastener to be fixed on the tool bit.
2. The 90 ° countersink tool according to claim 1, wherein: the cutting edge of the blade exceeds the outer contour of the cutter head by 0.5mm-1mm, and the cutting edge of the blade is a structure which extends along one side surface and is formed by gradually reducing the thickness of the other side surface.
3. A 90 ° countersink tool according to claim 1 or 2, wherein: the blades on the two sides are seen from the axial direction, the center lines of the blades in the thickness direction on the two sides are vertically intersected with the center line of the cutter head, and the cutting edges of the blades on the two sides are arranged on the two sides of the center line in the thickness direction in a centrosymmetric mode.
4. A 90 ° countersink tool according to claim 1 or 2, wherein: the guide pin is preset with various specifications according to the aperture.
5. A 90 ° countersink tool according to claim 3, wherein: the guide pin is preset with various specifications according to the aperture.
6. A90 ° countersink tool according to claim 1, 2 or 5, wherein: the rear end of the knife handle is provided with an installation connecting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121541098.3U CN215545188U (en) | 2021-07-08 | 2021-07-08 | 90-degree conical counter boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121541098.3U CN215545188U (en) | 2021-07-08 | 2021-07-08 | 90-degree conical counter boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215545188U true CN215545188U (en) | 2022-01-18 |
Family
ID=79824195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121541098.3U Active CN215545188U (en) | 2021-07-08 | 2021-07-08 | 90-degree conical counter boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215545188U (en) |
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2021
- 2021-07-08 CN CN202121541098.3U patent/CN215545188U/en active Active
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