CN218396082U - Shallow hole drill - Google Patents
Shallow hole drill Download PDFInfo
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- CN218396082U CN218396082U CN202222705637.3U CN202222705637U CN218396082U CN 218396082 U CN218396082 U CN 218396082U CN 202222705637 U CN202222705637 U CN 202222705637U CN 218396082 U CN218396082 U CN 218396082U
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- shallow hole
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Abstract
The utility model discloses a shallow hole drill, which relates to the technical field of drill bits and comprises a drill bit body; a shank connected to one end of the bit body; the cutting body is detachably connected to the other end of the drill bit body; the chip groove is connected to one end, far away from the handle, of the drill body; the front cutter face of the cutting body is positioned in the chip groove, the rear cutter face of the cutting body is attached to the end face of the drill bit body, the end face of the other end of the drill bit body is provided with an installation positioning groove, and the cutting body is positioned in the installation positioning groove; the drill bit body is connected with the cutting body through a fastening piece, and the fastening piece penetrates through the end face of the drill bit body; the cutting body is provided with a threaded through hole, the threaded through hole penetrates through the rear cutter face of the drill bit body, and the fastener is in threaded connection with the threaded through hole. The smooth and easy poor technical problem of nature of chip removal to the shallow hole brill, the technical effect of the utility model lies in that its smooth and easy nature of chip removal is good.
Description
Technical Field
The utility model relates to a drill bit technical field, concretely relates to shallow hole bores.
Background
The shallow hole drill is a common hole machining tool, also called as a U drill, a violent drill and the like, can machine a deep hole with the diameter 5 times that of the tool under the condition of higher stability of the tool, and is widely applied to the field of hole machining.
Related shallow hole bores generally includes cutter and handle of a knife to link together cutter and handle of a knife through fasteners such as countersunk screw, half countersunk screw, however, when processing, the fastener easily causes the influence to the shaping of sweeps, thereby leads to the sweeps to take shape the effect poor, and then leads to the smooth and easy nature of chip removal poor.
SUMMERY OF THE UTILITY MODEL
The poor technical problem of smooth and easy nature of chip removal to the shallow hole brill, the utility model provides a shallow hole brill, its chip removal is smooth and easy nature good.
In order to solve the above problem, the utility model provides a technical scheme does:
a shallow hole drill comprising:
a drill bit body;
a shank connected to one end of the bit body;
the cutting body is detachably connected to the other end of the drill bit body;
a chip discharge groove connected to one end of the drill bit body away from the handle part;
the front cutter face of the cutting body is located in the chip removal groove, the rear cutter face of the cutting body is attached to the end face of the drill bit body, an installation positioning groove is formed in the end face of the other end of the drill bit body, and the cutting body is located in the installation positioning groove.
Optionally, the bit body and the cutting body are connected by a fastener, and the fastener passes through the end face of the bit body.
Optionally, a threaded through hole is formed in the cutting body, the threaded through hole penetrates through the rear cutter face of the drill body, and the fastener is connected in the threaded through hole in a threaded manner.
Optionally, the cutting body comprises:
a cutting body detachably connected to the other end of the bit body;
a first cutting strip attached to one end of the cutting body, the first cutting strip having portions of each of its planar surfaces of equal length;
and the second cutting belt is connected to the other end of the cutting body, and the length of each plane part of the second cutting belt is equal.
Optionally, the number of the cutting bodies is more than two, the number of the chip grooves is more than two, and the cutting bodies and the chip grooves are arranged in a staggered manner.
Optionally, a plurality of the cutting bodies have an overlap in the radial direction, and the length d1 of the overlap is 0.5-2.5mm.
Optionally, the combined radial length d2 of the plurality of cutting bodies is greater than the nominal diameter of the shallow hole drill.
Optionally, the rotation angles α of the plurality of cutting bodies range from 1 ° to 45 °.
Optionally, the radial cross-sectional area of the chip groove is 0.3-0.6 of the radial cross-sectional area of the drill body.
Optionally, the cross-sectional shape of the cutting body is square or triangular.
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect: because the front knife face of the cutting body is positioned in the chip removal groove, the rear knife face of the cutting body is attached to the end face of the drill bit body, so that the rear knife face of the cutting body is connected with the drill bit body through fasteners such as countersunk screws and semi-countersunk screws, the chips cut by the front knife face of the cutting body are prevented from being damaged by the fasteners, the forming effect of the chips is prevented from being poor, and the chips are smoothly removed.
Drawings
Fig. 1 is a schematic structural diagram of a shallow hole drill according to an embodiment of the present invention;
fig. 2 is a second schematic structural view of a shallow hole drill according to an embodiment of the present invention;
fig. 3 is a third schematic structural view of a shallow hole drill according to an embodiment of the present invention;
fig. 4 is a partial view of a according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a cutting body according to an embodiment of the present invention;
in the figure: 1. a drill bit body; 2. a handle; 3. a cutting body; 31. a rake face; 32. a flank face; 33. cutting a first belt; 34. cutting a second belt; 35. a threaded through hole; 36. cutting the body; 4. a chip groove; 5. a fastener; 6. and installing a positioning groove.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.
Example 1
With reference to fig. 1-5, the present embodiment provides a shallow hole drill, comprising:
a drill body 1;
a shank 2 connected to one end of the bit body 1;
a cutting body 3 detachably connected to the other end of the drill bit body 1;
a chip groove 4 connected to one end of the drill bit body 1 far away from the handle part 2;
wherein, the rake face 31 of cutting body 3 is located chip groove 4, and the back knife face 32 of cutting body 3 and the terminal surface laminating of drill bit body 1, the terminal surface of the drill bit body 1 other end is equipped with installation constant head tank 6, and the cutting body 3 is located installation constant head tank 6.
Specifically, the bit body 1 is used to carry a shank 2, a cutting body 3, and the like; the handle part 2 is used for matching with cutting equipment such as a magnetic seat drilling machine and the like so as to match a shallow hole drill with the cutting equipment, and the cross section of the handle part 2 can be triangular, square and the like; the cutting body 3 is used for cutting, and the cutting body 3 is detachably connected with the drill bit body 1, so that the cutting body 3 can be replaced or maintained in time conveniently, the cutting efficiency is ensured, the cross section of the cutting body 3 can be square, triangular and the like, preferably square, and the specific number of the cutting body 3 is not limited and can be determined according to the comprehensive consideration of factors such as processing, manufacturing and the like; the chip removal groove 4 is used for removing chips, the shape of the chip removal groove 4 can be spiral, linear and the like, the specific number of the chip removal groove 4 is not limited, and the chip removal groove 4 can be determined according to comprehensive consideration of factors such as processing, manufacturing and the like; because the front knife face 31 of the cutting body 3 is positioned in the chip removal groove 4, the rear knife face 32 of the cutting body 3 is attached to the end face of the drill bit body 1, so that the rear knife face 32 of the cutting body 3 is connected with the drill bit body 1 through the fasteners 5 such as the countersunk head screws and the half countersunk head screws, the chips cut by the front knife face 31 of the cutting body 3 are prevented from being damaged by the fasteners 5, the forming effect of the chips is prevented from being poor, and the smoothness of the chips is good.
Further, the bit body 1 and the cutting body 3 are connected by a fastener 5, and the fastener 5 penetrates through the end face of the bit body 1.
Specifically, fastener 5 is used for making drill bit body 1 and cutting body 3 realize dismantling the connection, and fastener 5 can be countersunk screw, half countersunk screw etc. because fastener 5 passes drill bit body 1's terminal surface, effectively prevents that the sweeps that the rake face 31 of cutting body 3 cut off from receiving fastener 5's damage, and then prevents that the shaping effect of sweeps is poor for the smooth and easy nature of chip removal is good.
Further, the cutting body 3 is provided with a threaded through hole 35, the threaded through hole 35 penetrates through the rear face 32 of the drill body 1, and the fastener 5 is in threaded connection with the threaded through hole 35.
In particular, the threaded through bore 35 is carried by the cutting body 3 and is adapted to cooperate with the fastener 5 such that the fastener 5 is adapted to effect a detachable connection between the bit body 1 and the cutting body 3.
Further, the cutting body 3 comprises:
a cutting body 36 detachably attached to the other end of the bit body 1;
a first cutting strip 33 attached to one end of the cutting body 36, the length of each planar portion of the first cutting strip 33 being equal;
and a second cutting strip 34 connected to the other end of the cutting body 36, wherein the length of each planar portion of the second cutting strip 34 is equal.
Specifically, the first cutting strip 33 and the second cutting strip 34 are used for cutting, the drill body 1 is detachably connected with the cutting body 36, so that the cutting body 36 can be conveniently turned over, the first cutting strip 33 and the second cutting strip 34 are switched, the service life of the shallow hole drill is prolonged, and the cutting body 36 can be conveniently rotated, the cutting edges of the first cutting strip 33 and the second cutting strip 34 are switched, and the service life of the shallow hole drill is prolonged.
Furthermore, the number of the cutting bodies 3 is more than two, the number of the chip grooves 4 is more than two, and the cutting bodies 3 and the chip grooves 4 are arranged in a staggered mode.
Particularly, the cutting efficiency and the chip removal efficiency are increased, and the cutting body 3 and the chip removal grooves 4 are arranged in a staggered mode, so that the uniformity of chip removal is increased, and insufficient or excessive chip removal is prevented.
Furthermore, several cutting bodies 3 have a superposition in the radial direction, the length d1 of which is 0.5-2.5mm.
Specifically, the length d1 of the overlapping portion may be 0.5mm, 1mm, or 2.5mm, which is beneficial to the cutting bodies 3 to share the cutting amount with each other.
Further, the combined radial length d2 of the plurality of cutting bodies 3 is larger than the nominal diameter of the shallow hole drill.
Specifically, the combined radial length d2 specifically means that when the plurality of cutting bodies 3 are connected to the cutting body 36, the size after the overlapping portion exists, in other words, the overlapping portion of the plurality of cutting bodies 3 is calculated only once, which is beneficial to ensuring the cutting sufficiency and preventing insufficient cutting.
Furthermore, the angle of rotation alpha of the plurality of cutting bodies 3 ranges from 1 to 45 deg..
Specifically, the cutting bodies 3 are prevented from being parallel to each other, which is beneficial to ensuring the cutting sufficiency and preventing insufficient cutting, and the turning angle alpha can be 1 degree, 30 degrees or 45 degrees.
Further, the radial sectional area of the chip groove 4 is 0.3-0.6 of the radial sectional area of the drill body 1.
Specifically, the radial sectional area of the chip groove 4 may be 0.3, 0.5, 0.6, or the like of the radial sectional area of the drill body 1, and if the proportion is small, the chip removal performance of the chip groove 4 will be insufficient, and if the proportion is large, the strength of the cutting body 36 will be insufficient.
Further, the cutting body 3 has a square or triangular cross-sectional shape.
Specifically, the square shape enables the cutting body 3 to have more conversion angles, which is beneficial to prolonging the service life of the shallow hole drill; the triangular shape makes the structure of the cutting body 3 simple.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art should understand that without departing from the spirit of the present invention, the person skilled in the art should not inventively design the similar structural modes and embodiments to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (10)
1. A shallow hole drill, comprising:
a drill bit body;
a shank connected to one end of the bit body;
the cutting body is detachably connected to the other end of the drill bit body;
a chip groove connected to one end of the drill body away from the handle part;
the front cutter face of the cutting body is located in the chip removal groove, the rear cutter face of the cutting body is attached to the end face of the drill bit body, an installation positioning groove is formed in the end face of the other end of the drill bit body, and the cutting body is located in the installation positioning groove.
2. A shallow hole drill as claimed in claim 1 wherein the bit body and the cutting body are connected by a fastener which passes through the end face of the bit body.
3. The shallow hole drill of claim 2, wherein the cutting body is provided with a threaded through hole, the threaded through hole passes through the rear face of the drill body, and the fastener is threaded into the threaded through hole.
4. The shallow hole drill of claim 1, wherein the cutting body comprises:
the cutting body is detachably connected to the other end of the drill bit body;
a first cutting strip attached to one end of the cutting body, the first cutting strip having portions of each of its planar surfaces of equal length;
and the second cutting belt is connected to the other end of the cutting body, and the length of each plane part of the second cutting belt is equal.
5. A shallow hole drill as defined in claim 1, wherein said cutting bodies are more than two in number, said flutes are more than two in number, and said cutting bodies and said flutes are staggered.
6. A shallow hole drill as claimed in claim 5, characterized in that a number of said cutting bodies have an overlap in the radial direction, the length d1 of said overlap being 0.5-2.5mm.
7. A shallow hole drill as claimed in claim 5, characterized in that the combined radial length d2 of the several cutting bodies is greater than the nominal diameter of the shallow hole drill.
8. A shallow hole drill as claimed in claim 5, characterized in that the angle of rotation α of the cutting bodies ranges from 1 to 45 °.
9. A shallow hole drill as defined in claim 1, wherein the radial cross-sectional area of said flutes is 0.3-0.6 of the radial cross-sectional area of said bit body.
10. A shallow hole drill as defined in claim 1, wherein said cutting body has a square or triangular cross-sectional shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222705637.3U CN218396082U (en) | 2022-10-13 | 2022-10-13 | Shallow hole drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222705637.3U CN218396082U (en) | 2022-10-13 | 2022-10-13 | Shallow hole drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218396082U true CN218396082U (en) | 2023-01-31 |
Family
ID=85001523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222705637.3U Active CN218396082U (en) | 2022-10-13 | 2022-10-13 | Shallow hole drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218396082U (en) |
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2022
- 2022-10-13 CN CN202222705637.3U patent/CN218396082U/en active Active
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