CN217095764U - Auxiliary device for drilling inclined hole - Google Patents
Auxiliary device for drilling inclined hole Download PDFInfo
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- CN217095764U CN217095764U CN202123081069.6U CN202123081069U CN217095764U CN 217095764 U CN217095764 U CN 217095764U CN 202123081069 U CN202123081069 U CN 202123081069U CN 217095764 U CN217095764 U CN 217095764U
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- drill bit
- rotating shaft
- guide sleeve
- main body
- hole
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Abstract
The invention discloses an auxiliary device for drilling an inclined hole, which comprises an adjusting plate, a guide sleeve and a connecting sleeve, wherein the adjusting plate is fixedly connected with the guide sleeve; the guide sleeve comprises a guide sleeve main body and a rotating shaft, a drill bit trepanning with a circular section is arranged in the middle of the guide sleeve main body, the rotating shaft is a rotary structure, and the rotary axis of the rotating shaft is perpendicular to the axis of the drill bit trepanning; the drill bit sleeve hole penetrates through the guide sleeve main body and the rotating shaft; the adjusting plate comprises a rotating shaft hole, and the rotating shaft is sleeved with the rotating shaft hole in a clearance fit manner; one side of the rotating shaft hole, which is far away from the guide sleeve main body, is provided with a drill bit limiting groove, and a chip removal groove is formed in the drill bit limiting groove. According to the invention, the workpiece does not need to be pre-drilled and positioned before the inclined hole is drilled, so that the machining efficiency is improved; the rotatable adjusting plate is arranged, so that the clamping angle of the workpiece can be automatically adjusted, and a drill bit or the auxiliary device for drilling the inclined hole is not required to be adjusted; the chip groove is arranged, so that the drill bit can be prevented from being locked when the inclined hole with larger depth is drilled.
Description
Technical Field
The invention relates to the technical field of machining, in particular to an auxiliary device for drilling an inclined hole.
Background
Drilling inclined holes is a process often encountered in machining, particularly in the manufacture of molds. In the prior art, in order to accurately process the inclined hole, an auxiliary process groove is generally made for pre-drilling and positioning before the inclined hole is drilled, the method has the problems of multiple working procedures, low efficiency, poor precision and the like, and particularly has prominent defects when the inclined hole with larger depth needs to be drilled in a die water channel and the like.
Therefore, it is desirable to design an auxiliary device for drilling inclined holes to improve the efficiency of drilling inclined holes.
Disclosure of Invention
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the utility model provides a bore inclined hole auxiliary device which characterized in that: comprises an adjusting plate (10), a guide sleeve (20) and a connecting sleeve (30);
the guide sleeve (20) comprises a guide sleeve main body (21) and a rotating shaft (22) fixed on the end face of the guide sleeve main body (21), a drill bit trepanning (23) with a circular section is arranged in the middle of the guide sleeve main body (21), the rotating shaft (22) is a rotary structure, and the rotary axis of the rotating shaft (22) is perpendicular to the axis of the drill bit trepanning (23); the drill bit trepanning (23) penetrates through the guide sleeve main body (21) and the rotating shaft (22);
the adjusting plate (10) comprises a rotating shaft hole (11), and the rotating shaft (22) is rotatably sleeved with the rotating shaft hole (11) in a clearance fit manner; a clearance groove (13) is formed in one side, close to the guide sleeve main body (21), of the rotating shaft hole (11), and a drill bit limiting groove (12) penetrating through the binding surface (17) is formed in one side, far away from the guide sleeve main body (21), of the rotating shaft hole (11);
one end of the guide sleeve main body (21) far away from the rotating shaft (22) is provided with a detachable connecting sleeve (30) used for connecting a drilling machine (50).
Preferably, a replaceable bushing (24) is arranged in the guide sleeve (20), and a drill bit sleeve hole (23) is formed in the middle of the bushing (24).
Preferably, the material of the lining (24) is alloy steel, the hardness is greater than HRC62, and the roughness of the inner wall of the lining (24) is less than Ra0.8.
Preferably, the drill bit trepanning (23) is in clearance fit with the drill bit (40), and the clearance value is 0.03-0.08 mm.
Preferably, the drill bit limiting groove (12) is of an isosceles triangle structure, the vertex of the isosceles triangle is close to the center of the rotating shaft hole (11), the waist of the isosceles triangle faces the rotating direction of the guide sleeve main body 21, and the angle bisector of the isosceles triangle is perpendicular to the binding surface (17); the vertex angle X of the isosceles triangle is less than or equal to 100 degrees, and the width of the isosceles triangle is greater than or equal to the diameter of the drill bit trepanning.
Preferably, the drill limiting groove (12) is of a regular cone structure, the vertex of the regular cone is close to the center of the rotating shaft hole (11), the rotating shaft of the regular cone is perpendicular to the joint surface (17), and the vertex angle X of the regular cone is smaller than or equal to 100 degrees.
Preferably, the adjusting plate (10) comprises an upper adjusting plate (14), a lower adjusting plate (15) and a fastener, and the upper adjusting plate (14) and the lower adjusting plate (15) are mutually symmetrical and detachably connected through the fastener.
Preferably, the connecting sleeve (30) comprises a connecting sleeve seat (31), and a fixing cavity (32) in transition fit with the guide sleeve main body (21) is arranged in the middle of the connecting sleeve seat (31); a detachable mounting ring (33) is arranged at one end, close to the guide sleeve main body (21), of the connecting sleeve seat (31), a drill bit through hole (34) is arranged at one end, far away from the guide sleeve main body (21), of the connecting sleeve seat (31), and a connecting sleeve through hole (35) is arranged in the middle of the mounting ring (33); the profiles of the drill bit through hole (34) and the connecting sleeve through hole (35) are smaller than the profile of the fixed cavity (32) and are respectively coaxial with the drill bit sleeve hole (23); a tenon for preventing the guide sleeve main body 21 and the connecting sleeve 30 from rotating relatively is arranged between the guide sleeve main body and the connecting sleeve.
Preferably, regulating plate (10) are close to the one end of work piece (60), are provided with a plurality of chip grooves (16) that link up drill bit spacing groove (12), chip groove (16) are used for discharging the piece that drilling produced and prevent when regulating plate (10) and work piece (60) laminate between the two mix with the piece and cause the laminating uneven.
Preferably, the adjusting plate (10) is a magnetically switchable magnetic material.
Compared with the prior art, the invention has the beneficial effects that:
1. pre-drilling positioning is not needed before drilling the inclined hole, so that the working procedures can be reduced, and the machining efficiency is improved;
2. the rotatable adjusting plate is arranged, so that the clamping angle of the workpiece can be automatically adjusted, and a drill bit or the auxiliary device for drilling the inclined hole is not required to be adjusted;
3. the chip groove is arranged, so that the drill bit can be prevented from being locked when the inclined hole with larger depth is drilled.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of a structure of a guide sleeve;
FIG. 4 is a cross-sectional view B-B of FIG. 3;
FIG. 5 is a schematic view of the adjusting plate;
FIG. 6 is a schematic view of a connecting sleeve structure;
fig. 7 is a schematic view of the usage state of the present invention.
Wherein: the drilling machine comprises an adjusting plate 10, a rotating shaft hole 11, a drill bit limiting groove 12, a clearance groove 13, an upper adjusting plate 14, a lower adjusting plate 15, a chip groove 16, a binding surface 17, a guide sleeve 20, a guide sleeve body 21, a rotating shaft 22, a drill bit sleeve hole 23, a bushing 24, a connecting sleeve 30, a connecting sleeve seat 31, a fixing cavity 32, a mounting ring 33, a drill bit through hole 34, a connecting sleeve through hole 35, a drill bit 40, a drilling machine 50 and a workpiece 60.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention will be further described with reference to the accompanying drawings and the detailed description below:
as shown in fig. 1, 2, 3, 4, 5, 6, and 7, an auxiliary device for drilling an inclined hole includes an adjusting plate 10, a guide sleeve 20, and a connecting sleeve 30;
the guide sleeve 20 comprises a guide sleeve main body 21 and a rotating shaft 22 fixed on the end face of the guide sleeve main body 21, a drill sleeve hole 23 with a circular section is formed in the middle of the guide sleeve main body 21, the rotating shaft 22 is a rotary structure, and the rotary axis of the rotating shaft 22 is perpendicular to the axis of the drill sleeve hole 23; the drill sleeve hole 23 penetrates through the guide sleeve main body 21 and the rotating shaft 22;
the adjusting plate 10 comprises a rotating shaft hole 11, and the rotating shaft 22 is sleeved with the rotating shaft hole 11 in a rotatable clearance fit manner; a clearance groove 13 is formed in one side, close to the guide sleeve main body 21, of the rotating shaft hole 11, and a drill bit limiting groove 12 penetrating through the binding surface (17) is formed in one side, far away from the guide sleeve main body 21, of the rotating shaft hole 11;
one end of the guide sleeve main body 21, which is far away from the rotating shaft 22, is provided with a detachable connecting sleeve 30 for connecting a drilling machine 50, and the connecting sleeve 30 comprises a fixed cavity 32 for fixing the guide sleeve main body 21 and a drill bit through hole 34 which is coaxial with the fixed cavity 32.
Further, a replaceable bushing 24 is arranged in the guide sleeve 20, and a drill bit sleeve hole 23 is arranged in the middle of the bushing 24.
Further, the material of the lining 24 is alloy steel, the hardness is greater than HRC62, and the roughness of the inner wall of the lining 24 is less than Ra0.8.
Furthermore, the drill sleeve hole 23 is in clearance fit with the drill 40, and the clearance value is 0.03-0.08 mm. The small clearance can prevent the drill bit from swinging and improve the processing progress
Furthermore, the drill bit limiting groove (12) is of an isosceles triangle structure, the vertex of the isosceles triangle is close to the center of the rotating shaft hole (11), the waist of the isosceles triangle faces to the rotating direction of the guide sleeve main body 21, and the angular bisector of the isosceles triangle is perpendicular to the binding surface (17); the vertex angle X of the isosceles triangle is less than or equal to 100 degrees, and the width of the isosceles triangle is greater than or equal to the diameter of the drill bit trepanning.
By adopting the isosceles triangle structure, the swing of the drill bit 40 at the initial drilling position can be effectively reduced.
Furthermore, the drill bit limiting groove (12) is of a regular cone structure, the vertex of the regular cone is close to the center of the rotating shaft hole (11), the rotating shaft of the regular cone is perpendicular to the binding surface (17), and the vertex angle X of the regular cone is smaller than or equal to 100 degrees. Since the angle of the drill bit is typically 118 degrees, greater than 100 degrees can make the drill bit difficult to position and difficult to drill, the regular cone configuration can facilitate chip removal.
Further, the adjusting plate 10 includes an upper adjusting plate 14, a lower adjusting plate 15 and a fastening member, and the upper adjusting plate 14 and the lower adjusting plate 15 are detachably connected to each other symmetrically by the fastening member. The detachable connection can reduce the manufacturing difficulty and the manufacturing cost and is convenient to maintain.
Further, the connecting sleeve 30 comprises a connecting sleeve seat 31, and a fixing cavity 32 in transition fit with the guide sleeve main body 21 is arranged in the middle of the connecting sleeve seat 31; a detachable mounting ring 33 is arranged at one end of the connecting sleeve seat 31 close to the guide sleeve main body 21, a drill bit through hole 34 is arranged at one end of the connecting sleeve seat 31 far away from the guide sleeve main body 21, and a connecting sleeve through hole 35 is arranged in the middle of the mounting ring 33; the profiles of the drill bit through hole 34 and the connecting sleeve through hole 35 are both smaller than the profile of the fixed cavity 32 and are respectively coaxial with the drill bit sleeve hole 23; a tenon for preventing the guide sleeve main body 21 and the connecting sleeve 30 from rotating relatively is arranged between the guide sleeve main body and the connecting sleeve.
Furthermore, one end of the adjusting plate 10, which is close to the workpiece 60, is provided with a plurality of chip discharge grooves 16 which penetrate through the drill bit limiting grooves 12, and the chip discharge grooves 16 are used for discharging chips generated by drilling and preventing the adjusting plate 10 and the workpiece 60 from being attached unevenly due to the chips mixed between the adjusting plate 10 and the workpiece 60; drilling efficiency and quality can be improved by filling drilling fluid through the chip grooves 16.
Further, the adjusting plate 10 is a magnetic material that can be switched by magnetic force. When the adjusting plate 10 needs to be attached to the workpiece 60, the magnetism of the adjusting plate 10 is turned on, so that the adjusting plate 10 is closely attached to the workpiece 60 in a magnetic manner, and sliding is prevented; when the adjusting plate 10 is separated from the workpiece 60, similarly, the magnetism of the adjusting plate 10 is turned off.
The operation steps of the example of the invention are as follows, as shown in fig. 7:
1. fixing a workpiece 60 on a workbench of a drilling machine 50, and adjusting the angle between the workpiece and a main shaft of the drilling machine to align the position to be drilled with a drill bit 40;
2. after the drill 40 passes through the drill sleeve hole 23, the connecting sleeve 30 and the drilling machine 50 are fixed in a non-rotatable manner, and the check drill 40 can rotate smoothly in the drill sleeve hole 23;
3. starting the machine tool to enable the adjusting plate 10 to be attached to the workpiece;
4. the polarity of the magnet of the adjusting plate 10 is switched, so that the adjusting plate 10 is closely attached to the workpiece 60 in a magnetic manner;
5. controlling the drill bit 40 to rotate at a high speed and to feed slowly;
6. after the drill bit 40 drills to a certain depth, the normal parameters are switched to until the inclined hole machining is completed.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the protective scope of the present patent claims.
Claims (10)
1. The utility model provides a bore inclined hole auxiliary device which characterized in that: comprises an adjusting plate (10), a guide sleeve (20) and a connecting sleeve (30);
the guide sleeve (20) comprises a guide sleeve main body (21) and a rotating shaft (22) fixed on the end face of the guide sleeve main body (21), a drill bit trepanning (23) with a circular section is arranged in the middle of the guide sleeve main body (21), the rotating shaft (22) is a rotary structure, and the rotary axis of the rotating shaft (22) is perpendicular to the axis of the drill bit trepanning (23); the drill bit trepanning (23) penetrates through the guide sleeve main body (21) and the rotating shaft (22);
the adjusting plate (10) comprises a rotating shaft hole (11), and the rotating shaft (22) is rotatably sleeved with the rotating shaft hole (11) in a clearance fit manner; a clearance groove (13) is formed in one side, close to the guide sleeve main body (21), of the rotating shaft hole (11), and a drill bit limiting groove (12) penetrating through the binding surface (17) is formed in one side, far away from the guide sleeve main body (21), of the rotating shaft hole (11);
one end of the guide sleeve main body (21) far away from the rotating shaft (22) is provided with a detachable connecting sleeve (30) used for connecting a drilling machine (50).
2. The drill assistant of claim 1, wherein: the guide sleeve (20) is internally provided with a replaceable bushing (24), and the middle of the bushing (24) is provided with a drill bit sleeve hole (23).
3. The apparatus of claim 2, wherein: the material of the lining (24) is alloy steel, the hardness is greater than HRC62, and the roughness of the inner wall of the lining (24) is less than Ra0.8.
4. The inclined hole drilling auxiliary device according to claim 1 or 2, wherein: the drill bit trepanning (23) is in clearance fit with the drill bit (40), and the clearance value is 0.03-0.08 mm.
5. The drill assistant of claim 1, wherein: the drill bit limiting groove (12) is of an isosceles triangle structure, the vertex of the isosceles triangle is close to the center of the rotating shaft hole (11), the waist of the isosceles triangle faces to the rotating direction of the guide sleeve main body (21), and the angular bisector of the isosceles triangle is perpendicular to the binding surface (17); the vertex angle X of the isosceles triangle is less than or equal to 100 degrees, and the width of the isosceles triangle is greater than or equal to the diameter of the drill bit trepanning.
6. The drill assistant of claim 1, wherein: the drill bit limiting groove (12) is of a regular cone structure, the vertex of the regular cone is close to the center of the rotating shaft hole (11), the rotating shaft of the regular cone is perpendicular to the binding surface (17), and the vertex angle X of the regular cone is smaller than or equal to 100 degrees.
7. The drill assistant of claim 1, wherein: the adjusting plate (10) comprises an upper adjusting plate (14), a lower adjusting plate (15) and fasteners, wherein the upper adjusting plate (14) and the lower adjusting plate (15) are mutually and symmetrically detachably connected through the fasteners.
8. The drill assistant of claim 1, wherein: the connecting sleeve (30) comprises a connecting sleeve seat (31), and a fixing cavity (32) in transition fit with the guide sleeve main body (21) is arranged in the middle of the connecting sleeve seat (31); a detachable mounting ring (33) is arranged at one end, close to the guide sleeve main body (21), of the connecting sleeve seat (31), a drill bit through hole (34) is arranged at one end, far away from the guide sleeve main body (21), of the connecting sleeve seat (31), and a connecting sleeve through hole (35) is arranged in the middle of the mounting ring (33); the profiles of the drill bit through hole (34) and the connecting sleeve through hole (35) are smaller than the profile of the fixed cavity (32) and are respectively coaxial with the drill bit sleeve hole (23); a tenon for preventing the guide sleeve main body (21) and the connecting sleeve (30) from rotating relatively is arranged between the guide sleeve main body and the connecting sleeve.
9. The inclined hole drilling auxiliary device according to claim 1 or 7, wherein: one end that regulating plate (10) is close to work piece (60) is provided with a plurality of chip grooves (16) that link up drill bit spacing groove (12), chip groove (16) are used for discharging the piece that drilling produced and prevent when regulating plate (10) and work piece (60) laminate between the two mix with the piece and cause the laminating uneven.
10. The inclined hole drilling auxiliary device according to claim 1 or 7, wherein: the adjusting plate (10) is made of magnetic material capable of being switched by magnetic force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123081069.6U CN217095764U (en) | 2021-12-09 | 2021-12-09 | Auxiliary device for drilling inclined hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123081069.6U CN217095764U (en) | 2021-12-09 | 2021-12-09 | Auxiliary device for drilling inclined hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217095764U true CN217095764U (en) | 2022-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123081069.6U Active CN217095764U (en) | 2021-12-09 | 2021-12-09 | Auxiliary device for drilling inclined hole |
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| Country | Link |
|---|---|
| CN (1) | CN217095764U (en) |
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2021
- 2021-12-09 CN CN202123081069.6U patent/CN217095764U/en active Active
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