CN216706064U - Circular cutter head convenient to replace - Google Patents
Circular cutter head convenient to replace Download PDFInfo
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- CN216706064U CN216706064U CN202220017291.5U CN202220017291U CN216706064U CN 216706064 U CN216706064 U CN 216706064U CN 202220017291 U CN202220017291 U CN 202220017291U CN 216706064 U CN216706064 U CN 216706064U
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Abstract
The utility model discloses a circular cutter head convenient to replace, which comprises a cutter head main body, wherein the cutter head main body is cylindrical, the surface of the cutter head main body connected with a cutter bar is defined as an installation surface, the other surface opposite to the installation surface is a working surface, and the installation surface is a concave-convex surface formed by arranging concave parts and convex parts at intervals; the tool bit main body is provided with an axially extending mounting hole, the concave-convex surface of the tool bit main body is matched and positioned with the mounting surface of the tool bar, and the tool bit main body is detachably mounted on the tool bar by a fastening piece penetrating through the mounting hole. The tool can be detachably connected with the tool bar, and only the tool bit needs to be replaced after the tool bit is abraded, so that the cost is reduced; and the cutter head and the cutter bar still have better concentricity, so that the precision of a processed product is ensured.
Description
Technical Field
The utility model belongs to the technical field of cutters, and particularly relates to a cutter head for drilling, which is particularly suitable for drilling stainless steel plates.
Background
The process of drilling a hole in a solid material with a drill bit (also called a "bit") is known as drilling. Drilling, which is one of the basic methods of hole machining, is usually performed on a drilling machine or a lathe, and may also be performed on a boring machine or a milling machine.
Current tool bit and cutter arbor are the integral type, and the tool bit uses a period after, must have wearing and tearing, needs to change, and can only wholly replace, can increase the cost like this.
Therefore, the split type structure of the cutter head and the cutter bar is considered, and the problem of concentricity and precision is solved by adopting the split type structure.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a circular cutter head convenient to replace, which can be detachably connected with a cutter bar, and only needs to replace the cutter head after the cutter head is worn, thereby reducing the cost; and the cutter head and the cutter bar still have better concentricity, so that the precision of a processed product is ensured.
In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a circular cutter head convenient to replace, which comprises a cutter head main body, wherein the cutter head main body is cylindrical, the surface of the cutter head main body connected with a cutter bar is defined as an installation surface, the other surface opposite to the installation surface is a working surface, and the installation surface is a concave-convex surface formed by arranging concave parts and convex parts at intervals;
the tool bit main body is provided with an axially extending mounting hole, the concave-convex surface of the tool bit main body is matched and positioned with the mounting surface of the tool bar, and a fastener penetrates through the mounting hole to detachably mount the tool bit main body on the tool bar.
In order to solve the technical problems, the utility model adopts the further technical scheme that: the mounting surface of the cutter bar matched with the cutter head main body is also a concave-convex surface formed by arranging concave parts and convex parts at intervals.
Further, the bit body has an axially extending relief groove.
Further, the material discharge groove is an arc-shaped material discharge groove with an arc-shaped cross section.
Furthermore, the number of the material discharge grooves is two, and the two material discharge grooves are symmetrically distributed at an angle of 180 degrees.
Further, the upper surface of the convex part is a plane; the bottom surface of the concave part is an arc-shaped surface.
Furthermore, the upper surface of the convex part is an arc-shaped surface; the bottom surface of the concave part is a plane.
Further, the bottom surface of the recess is located higher toward the center of the bit body.
Further, the mounting hole is a stepped hole.
Further, the mounting surface is a concave-convex surface formed by a circle of concave parts and convex parts which are arranged at intervals.
The utility model has the beneficial effects that:
the tool bit comprises a tool bit main body, wherein the tool bit main body is cylindrical, the surface, connected with a tool bar, of the tool bit main body is defined as an installation surface, the other surface, opposite to the installation surface, of the tool bit main body is a working surface, and the installation surface is a concave-convex surface formed by concave parts and convex parts which are arranged at intervals; the tool bit can be detachably connected with the tool bar, and only the tool bit needs to be replaced after the tool bit is worn, so that the cost is reduced; the concave part and the convex part are matched and aligned, so that the assembled cutter head and the assembled cutter bar still have better concentricity, and the precision of a processed product is ensured;
moreover, the upper surface of the convex part is a plane, the bottom surface of the concave part is an arc-shaped surface, and more preferably, the position of the bottom surface of the concave part, which is closer to the center of the tool bit main body, is higher, so that the tool bit and the tool bar are easier to align and automatically center when being installed, and the concentricity of the assembled tool bit and the assembled tool bar is further improved;
in addition, the cutter head main body is provided with the axially extending material-letting groove with the arc-shaped cross section, the material-letting groove can play a role in material letting or material returning during drilling, the stress during edging of the cutter head main body can be eliminated, and the strength of the cutter head is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to make the technical solutions of the present invention practical in accordance with the contents of the specification, the following detailed description is given of preferred embodiments of the present invention with reference to the accompanying drawings.
Drawings
FIG. 1 is one of the schematic structural views of the present invention (from an angle);
FIG. 2 is a second schematic view (from another perspective) of the present invention;
FIG. 3 is a half sectional view (section line not drawn) of the present invention;
FIG. 4 is a top view of the present invention;
the parts in the drawings are marked as follows:
the cutter head comprises a cutter head body 1, an installation surface 2, a concave part 21, a convex part 22, a working surface 3, an installation hole 4 and a material passing groove 5.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and the present invention will be described in detail with reference to the accompanying drawings. The utility model may be embodied in other different forms, i.e. it is capable of various modifications and changes without departing from the scope of the utility model as disclosed.
Example (b): a circular cutter head convenient to replace comprises a cutter head main body 1, as shown in figures 1 to 4, wherein the cutter head main body is cylindrical, the surface of the cutter head main body connected with a cutter rod is defined as an installation surface 2, the other surface opposite to the installation surface is a working surface 3, and the installation surface is a concave-convex surface formed by arranging concave parts 21 and convex parts 22 at intervals;
the tool bit main body is provided with an axially extending mounting hole 4, the concave-convex surface of the tool bit main body is matched and positioned with the mounting surface of the tool bar, and a fastener penetrates through the mounting hole to detachably mount the tool bit main body on the tool bar.
The mounting surface of the cutter bar matched with the cutter head main body is also a concave-convex surface formed by arranging concave parts and convex parts at intervals.
The bit body has an axially extending relief channel 5.
The material-letting groove is an arc-shaped material-letting groove with an arc-shaped cross section.
In this embodiment, preferably, there are two material-letting slots, and the two material-letting slots are symmetrically distributed at 180 °. Let the silo except can playing the effect of letting material or material returned when drilling, stress when can also eliminating the knife head main part and edging improves tool bit intensity.
The upper surface of the convex part is a plane; the bottom surface of the concave part is an arc-shaped surface; of course, other shapes may be used, such as saw-toothed, rectangular, etc.
Or the upper surface of the convex part is an arc surface; the bottom surface of the concave part is a plane.
In this embodiment, the former is preferably adopted: the bottom surface of the recess is located higher closer to the center of the bit body.
The structure enables the cutter head and the cutter bar to be easily aligned when being installed, and automatically centers, so that the concentricity of the assembled cutter head and the assembled cutter bar is further improved.
In this embodiment, the mounting hole is a stepped hole. The number of the mounting holes is two, and the two mounting holes are symmetrically distributed at an angle of 180 degrees. The fastening piece is a bolt, and the tool bit is fixed on the tool bar by penetrating the bolt through the stepped hole and extending into the tool bar.
In this embodiment, the mounting surface is a concave-convex surface formed by a circle of concave parts and convex parts arranged at intervals.
In this embodiment, the working surface is a plane.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. The utility model provides a circular tool bit convenient to change which characterized in that: the tool bit comprises a tool bit main body (1), wherein the tool bit main body is cylindrical, the surface, connected with a tool bar, of the tool bit main body is defined as an installation surface (2), the other surface, opposite to the installation surface, of the tool bit main body is a working surface (3), and the installation surface is a concave-convex surface formed by arranging concave parts (21) and convex parts (22) at intervals;
the tool bit main body is provided with an axially extending mounting hole (4), the concave-convex surface of the tool bit main body is matched and positioned with the mounting surface of the tool bar, and a fastener penetrates through the mounting hole to detachably mount the tool bit main body on the tool bar.
2. The circular cutting head facilitating replacement according to claim 1, wherein: the mounting surface of the cutter bar matched with the cutter head main body is also a concave-convex surface formed by arranging concave parts and convex parts at intervals.
3. The circular cutting head facilitating replacement according to claim 1, wherein: the cutter head main body is provided with an axially extending material-letting groove (5).
4. The circular cutting head facilitating replacement according to claim 3, wherein: the material-letting groove is an arc-shaped material-letting groove with an arc-shaped cross section.
5. The circular cutting head facilitating replacement according to claim 3, wherein: the material letting groove is provided with two, and two material letting grooves are in 180-degree symmetrical distribution.
6. The circular cutting head facilitating replacement according to claim 1, wherein: the upper surface of the convex part is a plane; the bottom surface of the concave part is an arc-shaped surface.
7. The circular cutting head facilitating replacement according to claim 1, wherein: the upper surface of the convex part is an arc surface; the bottom surface of the concave part is a plane.
8. The circular cutting head facilitating replacement according to claim 6, wherein: the bottom surface of the recess is located higher closer to the center of the bit body.
9. The circular cutting head facilitating replacement according to claim 1, wherein: the mounting hole is a step hole.
10. The circular cutting head facilitating replacement according to claim 1, wherein: the mounting surface is a concave-convex surface formed by a circle of concave parts and convex parts which are arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220017291.5U CN216706064U (en) | 2022-01-05 | 2022-01-05 | Circular cutter head convenient to replace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220017291.5U CN216706064U (en) | 2022-01-05 | 2022-01-05 | Circular cutter head convenient to replace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216706064U true CN216706064U (en) | 2022-06-10 |
Family
ID=81889712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220017291.5U Active CN216706064U (en) | 2022-01-05 | 2022-01-05 | Circular cutter head convenient to replace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216706064U (en) |
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2022
- 2022-01-05 CN CN202220017291.5U patent/CN216706064U/en active Active
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