CN110640189A - Novel strike hole saw - Google Patents
Novel strike hole saw Download PDFInfo
- Publication number
- CN110640189A CN110640189A CN201911047654.9A CN201911047654A CN110640189A CN 110640189 A CN110640189 A CN 110640189A CN 201911047654 A CN201911047654 A CN 201911047654A CN 110640189 A CN110640189 A CN 110640189A
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- CN
- China
- Prior art keywords
- hole
- connecting rod
- boss
- drill bit
- hole saw
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0426—Drills for trepanning with centering devices
Abstract
The invention discloses a novel percussion hole saw, which comprises an end cover, a connecting rod and a drill bit, wherein the cross section of the end cover is T-shaped, the novel percussion hole saw comprises an integrated cover plate and a boss, a through hole is axially formed in the axis position of the end cover, a threaded through hole is formed in the side portion of the boss of the end cover, an annular hole saw is fixedly connected to one side, away from the boss, of the cover plate, the connecting rod is inserted into the through hole, a polygonal column structure is arranged on one side of the connecting rod, an annular groove is formed in the polygonal column structure of the connecting rod, a cylindrical structure is formed on the other side of the connecting rod, a blind hole is formed in the end portion, located on the cylindrical structure, of the connecting rod, the drill bit is fixedly inserted into the blind hole, a threaded blind hole is formed in the. Compared with the prior art, the invention has the advantages that: this novel strike hole saw convenient the change, stable in structure is reliable, reduces the replacement cost.
Description
Technical Field
The invention relates to the technical field of punching hole saws, in particular to a novel punching hole saw.
Background
The impact hole saw is commonly used on a handheld tool and used for drilling and punching and comprises a drill bit, a hole saw and a connecting rod, at present, the connecting rod and the hole saw of the traditional impact hole saw are connected in a fixed welding mode, so that the drill bit is easy to damage under the condition of high-strength operation, but the hole saw is still in a normal state, and because the whole part is scrapped due to the damage of the drill bit, the great waste is caused, the use cost is increased, the problems are all to be improved, and therefore the improvement is needed.
Disclosure of Invention
The invention aims to overcome the technical defects and provide a novel impact hole saw which is convenient to replace and stable and reliable in structure.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a novel strike hole saw, includes the end cover, connects pole and drill bit, the cross-section of end cover is established to T shape, apron and boss including an organic whole, the axle center position of end cover is equipped with the through-hole along the axial, the lateral part of the boss of end cover is equipped with the screw thread through-hole, the apron is kept away from one side fixed connection of boss is equipped with annular hole saw, connect the pole and peg graft in the through-hole, the one side of connecting the pole is established to the polygon prism structure, be equipped with the ring channel on the polygon prism structure of connecting the pole, the opposite side of connecting the pole is established to the cylinder structure, it is equipped with the blind hole to connect the tip that the pole is located the cylinder structure, the drill bit is fixed to be pegged graft on the blind hole, it is close.
Compared with the prior art, the invention has the advantages that: a novel impact hole saw comprises an end cover, a connecting rod and a drill bit, wherein the cross section of the end cover is T-shaped, the novel impact hole saw comprises an integrated cover plate and a boss, a through hole is axially formed in the axis position of the end cover, the connecting rod is conveniently inserted, a threaded through hole is formed in the side portion of the boss of the end cover, the end cover and the connecting rod are fixedly connected through a stud, an annular hole saw is fixedly connected to one side, away from the boss, of the cover plate, a hole can be conveniently formed, the connecting rod is inserted into the through hole, a polygonal column structure is formed in one side of the connecting rod, an annular groove is formed in the polygonal column structure of the connecting rod, the other side of the connecting rod is a cylindrical structure, the connecting rod is conveniently connected with a handheld electric tool, a blind hole is formed in the end portion, located on the cylindrical structure, of the connecting, the connecting rod is close to the threaded blind hole formed in the outer side face of the drill bit, the threaded through hole is coaxial with the threaded blind hole, so that the end cover and the connecting rod can be conveniently and fixedly connected through the double-screw bolt, and the drill bit is sleeved with a pressure spring.
As an improvement, one side of the cover plate, which is far away from the boss, is provided with a chamfer, and one end of the boss, which is far away from the cover plate, is provided with a chamfer, so that burrs can be removed, stress is released during heat treatment, and an assembly orientation effect can be achieved.
As an improvement, the side part of the hole saw is uniformly provided with 2 to 4 chip removal holes, so that chip removal is convenient during drilling.
As a modification, the diameter of the cover plate is set to be 10-50 mm, and the outermost diameter of the boss is set to be 15-25 mm.
As a refinement, the threaded through-hole is dimensioned from M3 to M8.
As an improvement, the diameter of the threaded blind hole is set to be 2-5 mm, and the distance between the outer tangent plane of the inner side wall of the threaded blind hole close to the drill bit and the end face of the extension rod close to the end cover is set to be 4-7 mm.
As a refinement, the hole depth of the blind hole is set to 3 to 6 mm.
As an improvement, the drill bit is inserted into the blind hole and fixedly connected with the connecting rod through welding.
Drawings
Fig. 1 is a schematic view of the overall structure of a novel percussion hole saw of the present invention.
FIG. 2 is a cross-sectional view of the end cap of a novel percussion hole saw of the present invention.
FIG. 3 is an enlarged partial view of the end cap of a novel percussion hole saw of the present invention.
FIG. 4 is a schematic view of a extension rod of a novel percussive hole saw of the present invention.
FIG. 5 is a side view of a extension bar of a novel percussive hole saw of the present invention.
As shown in the figure: 1. the device comprises an end cover, 2, a connecting rod, 3, a drill bit, 4, a cover plate, 5, a boss, 6, a through hole, 7, a threaded through hole, 8, a hole saw, 9, an annular groove, 10, a blind hole, 11, a threaded blind hole, 12, a pressure spring, 13, a corner cleaning, 14, a chamfer, 15 and a chip removal hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention provides a novel percussion hole saw in specific implementation, which comprises an end cover 1, a connecting rod 2 and a drill bit 3, wherein the section of the end cover 1 is in a T shape and comprises an integrated cover plate 4 and a boss 5, a through hole 6 is axially arranged at the axis position of the end cover 1, a threaded through hole 7 is arranged at the side part of the boss 5 of the end cover 1, an annular hole saw 8 is fixedly connected to one side of the cover plate 4, which is far away from the boss 5, the connecting rod 2 is inserted in the through hole 6, one side of the connecting rod 2 is in a polygonal column structure, an annular groove 9 is arranged on the polygonal column structure of the connecting rod 2, the other side of the connecting rod 2 is in a cylindrical structure, a blind hole 10 is arranged at the end part of the cylindrical structure, the drill bit 3 is fixedly inserted in the blind hole 10, a threaded blind hole 11 is arranged on the outer side surface of the connecting rod 2, which is, the drill bit 3 is sleeved with a pressure spring 12.
One side of the cover plate 4, which is far away from the boss 5, is provided with a chamfer 13, and one end of the boss 5, which is far away from the cover plate 4, is provided with a chamfer 14.
The side part of the hole saw 8 is evenly distributed with 2 to 4 chip removal holes 15.
The diameter of the cover plate 4 is set to be 10 to 50 mm, and the outermost diameter of the boss 5 is set to be 15 to 25 mm.
The threaded through-hole 7 is sized M3 to M8.
The diameter of the threaded blind hole 11 is set to be 2-5 mm, and the distance between the outer tangent plane of the inner side wall of the threaded blind hole 11 close to the drill bit 3 and the end face of the extension rod 2 close to the end cover 1 is set to be 4-7 mm.
The depth of the blind hole 10 is set to 3 to 6 mm.
The drill bit 3 is inserted into the blind hole 10, and the drill bit 3 is fixedly connected with the connecting rod 2 through welding.
The working principle of the invention is as follows: the novel punching hole saw is convenient to replace, stable and reliable in structure and capable of reducing replacement cost, a connecting rod and a hole saw of a traditional punching hole saw are connected in a fixed welding mode at present, when a drill bit is damaged, and other parts are normal, the whole part is scrapped due to fixed connection, so that great waste and increased use cost are caused, aiming at the situations, the novel punching hole saw comprises an end cover 1, a connecting rod 2 and a drill bit 3, the cross section of the end cover 1 is T-shaped and comprises an integrated cover plate 4 and a boss 5, the diameter of the cover plate 4 is 25 mm, the outermost diameter of the boss 5 is 17 mm, one side of the cover plate 4, away from the boss 5, is provided with a cleaning angle 13, one end of the boss 5, away from the cover plate 4, is provided with a chamfer 14, deburring can be realized through the chamfer 14 during machining, stress is released during heat treatment, and can play the directional effect of assembly, the axle center position of end cover 1 is equipped with through-hole 6 along the axial, conveniently pegs graft connect pole 2, the lateral part of boss 5 of end cover 1 is equipped with screw thread through-hole 7, apron 4 keeps away from one side fixed connection of boss 5 is equipped with annular hole saw 8, the lateral part evenly distributed of hole saw 8 is equipped with 2 chip removal holes 15, after starting the circular telegram, can make things convenient for the trompil through the high-speed rotation of hole saw 8, and chip removal hole 15 can conveniently the chip removal, connect pole 2 peg graft in through-hole 6, the heat treatment hardness that connects pole 2 is set to 45HRC, connect one side of pole 2 to be established the polygon prism structure, connect the polygon prism structure of pole 2 to be equipped with ring channel 9, connect the opposite side of pole 2 to be established cylindrical structure, the structure of polygon prism structure and ring channel 9 makes things convenient for connecting the pole, the end part of the extension rod 2, which is located at the cylindrical structure, is provided with a blind hole 10, the depth of the blind hole 10 is set to be 6 mm, the drill bit 3 is inserted into the blind hole 10, the drill bit 3 is sleeved with a pressure spring 12, the drill bit 3 is fixedly connected with the extension rod 2 through welding, stable connection of the extension rod 2 and the drill bit 3 can be realized, the extension rod 2 is close to the outer side surface of the drill bit 3 and is provided with a threaded blind hole 11, the threaded through hole 7 and the threaded blind hole 11 are coaxial, the size of the threaded through hole 7 is set to be M5, the diameter of the threaded blind hole 11 is set to be 5 mm, the distance between the outer tangent plane of the inner side wall of the threaded blind hole 11, which is close to the drill bit 3, and the end surface of the extension rod 2, which is close to the end cover 1, is set to.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a novel strike hole saw, includes end cover (1), connects pole (2) and drill bit (3), its characterized in that: the cross section of the end cover (1) is T-shaped and comprises a cover plate (4) and a boss (5) which are integrated, a through hole (6) is axially formed in the axis position of the end cover (1), a threaded through hole (7) is formed in the side portion of the boss (5) of the end cover (1), an annular hole saw (8) is fixedly connected to one side, away from the boss (5), of the cover plate (4), a connecting rod (2) is inserted into the through hole (6), one side of the connecting rod (2) is of a polygonal column structure, an annular groove (9) is formed in the polygonal column structure of the connecting rod (2), the other side of the connecting rod (2) is of a cylindrical structure, a blind hole (10) is formed in the end portion, located on the cylindrical structure, of the connecting rod (2), a drill bit (3) is fixedly inserted into the blind hole (10), a threaded blind hole (11) is formed in the outer side, close, the threaded through hole (7) is coaxial with the threaded blind hole (11), and the drill bit (3) is sleeved with a pressure spring (12).
2. A novel percussion hole saw as claimed in claim 1, wherein: the cover plate (4) is far away from one side of the boss (5) and is provided with a chamfer (13), and one end, far away from the cover plate (4), of the boss (5) is provided with a chamfer (14).
3. A novel percussion hole saw as claimed in claim 1, wherein: the side part of the hole saw (8) is uniformly distributed with 2 to 4 chip removal holes (15).
4. A novel percussion hole saw as claimed in claim 1, wherein: the diameter of the cover plate (4) is set to be 10-50 mm, and the outermost side of the boss (5) is set to be 15-25 mm.
5. A novel percussion hole saw as claimed in claim 1, wherein: the threaded through-hole (7) is sized from M3 to M8.
6. A novel percussion hole saw as claimed in claim 1, wherein: the diameter of the threaded blind hole (11) is set to be 2-5 mm, and the distance between the outer tangent plane of the inner side wall of the threaded blind hole (11) close to the drill bit (3) and the end face of the extension rod (2) close to the end cover (1) is set to be 4-7 mm.
7. A novel percussion hole saw as claimed in claim 1, wherein: the depth of the blind hole (10) is set to 3 to 6 mm.
8. A novel percussion hole saw as claimed in claim 1, wherein: the drill bit (3) is inserted into the blind hole (10), and the drill bit (3) is fixedly connected with the connecting rod (2) through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911047654.9A CN110640189A (en) | 2019-10-30 | 2019-10-30 | Novel strike hole saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911047654.9A CN110640189A (en) | 2019-10-30 | 2019-10-30 | Novel strike hole saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110640189A true CN110640189A (en) | 2020-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911047654.9A Pending CN110640189A (en) | 2019-10-30 | 2019-10-30 | Novel strike hole saw |
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| Country | Link |
|---|---|
| CN (1) | CN110640189A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112620715A (en) * | 2020-12-23 | 2021-04-09 | 黑龙江工业学院 | Drilling equipment is used in production of computer shell |
-
2019
- 2019-10-30 CN CN201911047654.9A patent/CN110640189A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112620715A (en) * | 2020-12-23 | 2021-04-09 | 黑龙江工业学院 | Drilling equipment is used in production of computer shell |
| CN112620715B (en) * | 2020-12-23 | 2021-12-31 | 黑龙江工业学院 | Drilling equipment is used in production of computer shell |
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