CN217668283U - Twist drill bit grinding assistor - Google Patents
Twist drill bit grinding assistor Download PDFInfo
- Publication number
- CN217668283U CN217668283U CN202220523719.3U CN202220523719U CN217668283U CN 217668283 U CN217668283 U CN 217668283U CN 202220523719 U CN202220523719 U CN 202220523719U CN 217668283 U CN217668283 U CN 217668283U
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- China
- Prior art keywords
- drill bit
- hole
- drill
- fixing body
- bit fixing
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- 230000010485 coping Effects 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003754 machining Methods 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model belongs to the technical field of machining, concretely relates to fluted twist drill coping assistor, including the drill bit fixed body, the drill bit fixed body is regular hexagonal prism, is provided with the locating hole that runs through the fixed axis of drill bit on the lateral wall of drill bit fixed body, and the center of locating hole is located six prisms wherein on two adjacent side plane's of prism articulated lines, is provided with double-layered tight hole on a side that is on a parallel with the locating hole axis, it intersects perpendicularly with the locating hole to press from both sides tight hole, presss from both sides the downthehole internal thread that is provided with of clamp, and threaded connection has the clamping bar in the double-layered tight hole. The auxiliary device can directly observe the angle of the cutting edge of the drill bit while grinding, help is provided for the correctness of the sharpening angle, the auxiliary time of production is effectively saved, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of machining, it relates to a fluted drill coping assistor specifically to say so.
Background
The twist drill is a common drilling tool in the machining industry, and the cutting edge of the head of the drill bit is frequently dull ground in the using process, so that the grinding and correction are manually carried out on a grinding machine. Although the twist drill has a simple structure, the twist drill is not easy to be really sharpened. The included angle that two cutting edges of the head of drill formed is 118, and not only must grind the front and back angle of cutting edge when the sharpening, still guarantee the included angle of two cutting edges, if the included angle is asymmetric or the angle has the deviation, will lead to the work piece can not obtain accurate size, leads to the drilling position inaccurate, and the drilling size precision deviation is big. When a worker grinds a drill bit, especially inexperienced novice, the accurate angle deviation cannot be observed by visual inspection, the time consumption is long due to the fact that the drill bit is ground, the waste of the drill bit is large, and the production efficiency and the machining quality are affected.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a twist drill grinding assistor.
The utility model discloses a realize through following technical scheme: the utility model provides a fluted drill coping assistor, includes the drill bit fixed body, the drill bit fixed body is regular hexagonal prism, is provided with the locating hole that runs through drill bit fixed body axis on the lateral wall of drill bit fixed body, and the center of locating hole is located hexagonal prism wherein two adjacent side plane's hinge line, is provided with on a side that is on a parallel with the locating hole axis and presss from both sides tight hole, it intersects with the locating hole is perpendicular to press from both sides tight hole, presss from both sides the downthehole internal thread that is provided with, and threaded connection has the clamp rod in pressing from both sides tight hole.
In the scheme, the front part of the clamping rod is provided with external threads matched with the internal threads of the clamping hole, and the rear part of the clamping rod is provided with a handle convenient to grasp.
In the scheme, the outer surface of the handle is provided with the latticed anti-skidding reticulate pattern.
In the scheme, the side face, opposite to the clamping hole, of the drill bit fixing body is connected with the forcing handle.
In the above scheme, the forcing handle is a regular hexagonal prism which is the same as the drill bit fixing body, and the forcing handle and the drill bit fixing body are arranged side by side.
In the scheme, the hexagonal prism axis of the drill bit fixing body is provided with a through observation hole, and the observation hole is vertically intersected with the positioning hole.
The utility model relates to a twist drill coping assistor compares with prior art, and its beneficial effect is:
1. the auxiliary device utilizes the characteristic of a regular hexagonal prism, the included angle of two adjacent sides is 120 degrees, the included angle is basically similar to the included angle 118 degrees of two cutting edges of the drill, the angle of the cutting edge of the drill can be directly observed while grinding, and the auxiliary device provides assistance for the correctness of the sharpening angle.
2. The assistor is small in size and convenient to hold, the drill bit is fast and simple to position in the assistor, the auxiliary time of production is effectively saved, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the twist drill grinding aid of the present invention.
FIG. 2 isbase:Sub>A cross-sectional view A-A of the Chinese character of FIG. 1.
In the figure: 1. the drill bit comprises a handle, 2, a clamping rod, 3, a first reference surface, 4, a drill bit edge included angle, 5, a second reference surface, 6, a drill bit fixing body, 7, a force applying handle, 8, a contrast angle, 9, a drill bit, 10, an observation hole, 11, a positioning hole and 12, wherein the first reference surface is a drill bit edge included angle.
Detailed Description
The utility model relates to a twist drill coping assistor is further described with specific embodiment in the following with the help of the attached drawings:
fig. 1 isbase:Sub>A schematic structural view of the grinding aid for twist drill bits of the present invention, and fig. 2 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A in fig. 1. In the figure, the twist drill grinding assistor comprises a drill fixing body 6, wherein the drill fixing body 6 is a regular hexagonal prism, a positioning hole 11 penetrating through the axis of the drill fixing body is formed in the side wall of the drill fixing body 6, the center of the positioning hole 11 is located on the intersection line of a first reference surface 3 and a second reference surface 5, the included angle between the first reference surface 3 and the second reference surface 5 on the end face of the drill fixing body 6 is 120 degrees, the positioning hole 11 is perpendicularly intersected with the axis of the drill fixing body 6, a clamping hole 12 is formed in the left side face parallel to the axis of the positioning hole 11, the clamping hole 12 is perpendicularly intersected with the positioning hole 11, an internal thread is formed in the clamping hole 12, and a clamping rod 2 is connected to the clamping hole 12 through the thread. The right end part of the clamping rod 2 is provided with an external thread matched with the internal thread of the clamping hole, the left end part of the clamping rod 2 is provided with a handle 1 convenient to grasp, and the outer surface of the handle 1 is provided with latticed anti-skidding reticulate patterns. The side face of the drill bit fixing body 6 opposite to the clamping hole 12 is connected with a stress application handle 7, the stress application handle 7 is a regular hexagonal prism body identical to the drill bit fixing body 6, and the stress application handle 7 and the drill bit fixing body 6 are arranged side by side and are connected into a whole edge to edge. A through observation hole 10 is arranged on the axis of the hexagonal prism of the drill bit fixing body 6, and the observation hole 10 is vertically intersected with the positioning hole 11.
When the drill bit 9 needs to be polished, the drill bit 9 is inserted into the positioning hole 11, the head of the drill bit is exposed out of the drill bit fixing body 6, two cutting edges of the drill bit correspond to the first reference surface 3 and the second reference surface 5, the drill bit is clamped by screwing the clamping rod 2, then the drill bit is close to the grinding wheel for sharpening, and eyes can visually sense whether the two cutting edges are respectively parallel to the first reference surface 3 and the second reference surface 5 during sharpening, so that the included angle 4 of the drill bit edge can be basically ensured to be approximately 118 degrees. The drill bit can be taken out after sharpening is finished, and the head of the drill bit is placed at the position of the comparison angle 8 for further comparison, so that the included angle of the cutting edge of the drill bit is ensured.
The angle of the cutting edge of the drill bit can be directly observed while the auxiliary device is used for polishing, the auxiliary device can help the correctness of the sharpening angle, the auxiliary time of production is effectively saved, and the production efficiency is improved.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make various changes or modifications equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments by the technical spirit of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a fluted drill coping assistor which characterized in that: the drill bit fixing device comprises a drill bit fixing body (6), wherein the drill bit fixing body (6) is a regular hexagonal prism, a positioning hole (11) penetrating through the axis of the drill bit fixing body is formed in the side wall of the drill bit fixing body (6), the center of the positioning hole (11) is located on the hinge line of two adjacent side planes of the hexagonal prism, a clamping hole (12) is formed in one side face parallel to the axis of the positioning hole (11), the clamping hole (12) is vertically intersected with the positioning hole (11), an internal thread is formed in the clamping hole (12), and a clamping rod (2) is connected to the middle of the clamping hole (12) through a thread.
2. A twist drill thinning aid according to claim 1, wherein: the front part of the clamping rod (2) is provided with external threads matched with the internal threads of the clamping hole, and the rear part of the clamping rod (2) is provided with a handle (1) convenient to grasp.
3. A twist drill thinning aid according to claim 2, wherein: the outer surface of the handle (1) is provided with latticed anti-skidding reticulate patterns.
4. The twist drill sharpening aid as claimed in claim 1, wherein: the side surface of the drill bit fixing body (6) opposite to the clamping hole (12) is connected with a forcing handle (7).
5. The twist drill thinning aid according to claim 4, wherein: the forcing handle (7) is a regular hexagonal prism body identical to the drill bit fixing body (6), and the forcing handle (7) and the drill bit fixing body (6) are arranged in parallel.
6. A twist drill thinning aid according to claim 1, wherein: a through observation hole (10) is formed in the axis of the hexagonal prism of the drill bit fixing body (6), and the observation hole (10) is perpendicularly intersected with the positioning hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220523719.3U CN217668283U (en) | 2022-03-10 | 2022-03-10 | Twist drill bit grinding assistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220523719.3U CN217668283U (en) | 2022-03-10 | 2022-03-10 | Twist drill bit grinding assistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217668283U true CN217668283U (en) | 2022-10-28 |
Family
ID=83730222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220523719.3U Active CN217668283U (en) | 2022-03-10 | 2022-03-10 | Twist drill bit grinding assistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217668283U (en) |
-
2022
- 2022-03-10 CN CN202220523719.3U patent/CN217668283U/en active Active
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