CN111975040B - Electric drill with drill bit convenient to replace and using method - Google Patents
Electric drill with drill bit convenient to replace and using method Download PDFInfo
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- CN111975040B CN111975040B CN202010675305.8A CN202010675305A CN111975040B CN 111975040 B CN111975040 B CN 111975040B CN 202010675305 A CN202010675305 A CN 202010675305A CN 111975040 B CN111975040 B CN 111975040B
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- drill
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- shell
- fixing device
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000005553 drilling Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 240000005002 Erythronium dens canis Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
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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
- B23B51/12—Adapters for drills or chucks; Tapered sleeves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention provides an electric drill with a drill bit convenient to replace, which comprises a shell, a drill rod and a motor, wherein the shell is hollow, one side of the shell is provided with an opening and is covered with a detachable shell cover, and the motor is arranged in an inner cavity of the shell; the motor is provided with a rotating shaft, a rotating shaft groove is formed at the head end of the rotating shaft, and internal threads are arranged on the inner wall of the rotating shaft groove; the invention also provides a using method of the electric drill with the drill bit convenient to replace, which comprises the following steps: opening the shell cover, screwing the tail end of the drill shank into the groove of the rotating shaft, wherein in the process, the side wall of the clamping ring is abutted against the bottom inclined plane of the fixture block abutting rod, the fixture block main body is forced to move upwards through the fixture block abutting rod until the fixture block abutting rod passes through the whole clamping ring, and the fixture block abutting rod falls back again; continuously screwing the tail end of the drill shank into the groove of the rotating shaft until the drill shank is completely screwed in; and the cover returns to the shell cover. The drill rod is a replaceable part, and drill rods with different flute patterns can be replaced according to requirements or can be replaced when the drill rod is damaged.
Description
Technical Field
The invention relates to the field of manufacturing, in particular to an electric drill with a drill bit convenient to replace and a using method.
Background
The working principle of the electric drill is that a motor rotor of an electromagnetic rotary type or electromagnetic reciprocating type small-capacity motor does magnetic field cutting work-doing operation, and the operation device is driven by a transmission mechanism to drive a gear to increase the power of a drill bit, so that the drill bit scrapes the surface of an object and better penetrates the object. Electric drills can be classified into 3 categories: electric hand drills, impact drills, hammer drills. 1. Electric hand drills: the power is minimum, the application range is limited to wood drilling and the use of the electric screwdriver, and part of electric hand drills can be changed into special tools according to the application, so that the applications and the types are more; 2. impact drilling: the impact mechanism of the impact electric drill is of a dog-tooth type and a ball type; 3. hammer drill (electric hammer): the hole can be drilled on various hard materials, and the application range is widest. The 3 kinds of electric drills are arranged from low prices to high prices, the functions are increased, and the selection needs to be combined with respective application range and requirements.
The electric drill is a conventional drilling product using electricity as power, is also one of electric tool products with the most purposes and the largest demand, is widely applied to industries such as manufacturing, building, home decoration and the like due to convenient carrying and flexible and simple operation, and is used for drilling of various materials.
When drilling work needs to drill holes with different sizes and apertures, a user needs to carry scattered drill bits with different sizes and apertures, and the drill bits need to be replaced.
The existing electric drill is inconvenient in drill bit replacement, single in drill bit replacement mode, low in replacement efficiency and difficult to guarantee replacement quality. After the drill bit is replaced, if the drill bit is not installed in place, the drill bit is easy to incline, so that the drill bit is broken in the drilling process.
Accordingly, there is a need for improvements in the art.
Disclosure of Invention
The invention aims to provide an electric drill with a drill bit capable of being replaced conveniently and efficiently and a using method of the electric drill.
In order to solve the technical problem, the invention provides an electric drill with a drill bit convenient to replace, which comprises a shell, a drill rod and a motor, wherein the shell is provided with a hole;
the shell is hollow, one side of the shell is provided with an opening, and a detachable shell cover is covered on the shell;
the motor is arranged in the inner cavity of the shell; the motor is provided with a rotating shaft; a rotating shaft groove is formed in the head end of the rotating shaft, and internal threads are formed in the inner wall of the rotating shaft groove;
the drill rod comprises a drill handle, a drill rod body and a drill bit which are sequentially connected and integrally formed;
the outer surface of the drill rod body is provided with a chip removal groove spirally extending around the central axis of the drill body;
the drill bit is fixedly arranged at the head end of the drill rod body; the tail end of the drill rod body is fixedly connected with the head end of the drill handle; an external thread is arranged on one side of the tail end of the drill handle; the tail end of the drill handle is matched with the groove of the rotating shaft for use;
the drill handle penetrates through the shell cover and extends into the inner cavity of the shell;
the drill handle is sleeved with a round table-shaped clamp ring, and the diameter of the clamp ring is gradually reduced along the direction from the head end to the tail end of the drill handle;
a fixing device is arranged in the inner cavity of the shell and is arranged on one side of the head end of the rotating shaft; the device is used with the snap ring cooperation, and fixing device is used for fixing the drilling rod with the snap ring cooperation.
As an improvement of the electric drill with the drill bit convenient to replace, the invention comprises the following steps:
the fixing device comprises a fixing device main body and a clamping block; the fixture block comprises a fixture block main body, a fixture block abutting rod and a fixture block pull rod;
the fixing device main body is fixedly connected with the inner top wall of the shell and is of a hollow structure, the bottom of the fixing device main body is provided with a fixing device main body opening communicated with the inner cavity of the fixing device main body, and the top of the shell is provided with a shell through hole communicated with the inner cavity of the fixing device main body;
the fixture block main body is movably arranged in the inner cavity of the fixing device main body, the diameter of the fixture block main body is larger than the diameter of the opening of the fixing device main body and the diameter of the through hole of the shell, and the length of the inner cavity of the fixing device main body is larger than that of the fixture block main body, so that the fixture block main body can slide up and down in the inner cavity of the fixing device main body;
the fixture block abutting rod is fixedly arranged at the bottom of the fixture block main body, and the fixture block pull rod is fixedly arranged at the top of the fixture block main body;
the fixture block abutting rod penetrates through the opening of the fixing device main body and extends into the inner cavity of the shell;
the fixture block pull rod penetrates through the through hole of the shell and extends to the outer side of the shell.
As a further improvement of the electric drill with the conveniently replaced drill bit, the invention comprises the following steps:
the length of the fixture block supporting rod is equal to that of the inner cavity of the fixing device main body; the bottom of the clamping block abutting rod is an inclined plane matched with the clamping ring for use, and the inclined plane inclines downwards from left to right; when the bottom of the fixture block main body is abutted against the bottom of the inner cavity of the fixing device main body, the bottom inclined plane of the fixture block abutting rod and the side wall of the clamping ring are positioned on the same horizontal line.
As a further improvement of the electric drill with the conveniently replaced drill bit of the invention:
the length of the fixture block pull rod is greater than that of the inner cavity of the fixing device main body, and when the bottom of the fixture block main body is abutted to the bottom of the inner cavity of the fixing device main body, part of the fixture block pull rod extends out of the shell.
As a further improvement of the electric drill with the conveniently replaced drill bit, the invention comprises the following steps:
the rotation direction of the rotating shaft is matched with the external thread at the tail end of the drill handle and the internal thread of the groove of the rotating shaft.
The invention also provides a using method of the electric drill with the drill bit convenient to replace, which comprises the following steps:
the shell cover is opened, the tail end of the drill shank is screwed into the groove of the rotating shaft, in the process, the side wall of the clamping ring is abutted against the bottom inclined plane of the fixture block abutting rod, the fixture block main body is forced to move upwards through the fixture block abutting rod until the fixture block abutting rod passes through the whole clamping ring, and the fixture block abutting rod falls back again; continuously screwing the tail end of the drill shank into the groove of the rotating shaft until the drill shank is completely screwed in; and covering back to the shell cover.
The electric drill with the drill bit convenient to replace has the technical advantages that:
according to the electric drill convenient for replacing the drill bit, the shell cover is opened, the tail end of the drill handle is screwed into the groove of the rotating shaft, in the process, the side wall of the clamping ring is abutted against the bottom inclined plane of the clamping block abutting rod, the clamping block main body is forced to move upwards through the clamping block abutting rod until the clamping block abutting rod passes through the whole clamping ring, and the clamping block abutting rod falls back again; continuously screwing the tail end of the drill shank into the groove of the rotating shaft until the drill shank is completely screwed in; and covering back to the shell cover.
The drill rod is a replaceable component, and drill rods with different chip groove patterns can be replaced according to requirements, or the drill rod can be replaced when damaged. By the mode, the drill rod can be conveniently and effectively replaced, and the replacement quality is high.
The rotation direction of the rotating shaft is matched with the external thread at the tail end of the drill handle and the internal thread of the groove of the rotating shaft, namely: when the rotating shaft rotates clockwise, the internal thread and the external thread are right-handed threads (threads screwed in when rotating clockwise). This prevents the drill rod from falling off during rotation.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic view showing a structure in which a shank 13 of an electric drill for facilitating bit replacement of the present invention is screwed into a portion of a groove 32 of a rotary shaft;
fig. 2 is a schematic view of the drill shank 13 of the drill facilitating bit replacement of the present invention fully screwed into the spindle recess 32;
fig. 3 is an enlarged structural view of a portion a in fig. 1.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.
Example 1 a drill for facilitating bit replacement, as shown in figures 1 to 3, comprises a housing 2, a drill rod 1 and a motor 3.
The housing 2 is hollow, and a detachable housing cover 21 is provided with an opening at one side of the housing 2.
The motor 3 is disposed in the housing interior 22. The motor 3 is provided with a rotating shaft 31, a rotating shaft groove 32 is arranged at the head end of the rotating shaft 31, an inner thread 33 is arranged on the inner wall of the rotating shaft groove 32,
the drill rod 1 comprises a drill handle 13, a drill rod body 12 and a drill bit 11 which are connected in sequence and are integrally formed.
The outer surface of the drill rod body 12 is provided with a chip removal groove spirally extending around the central axis of the drill body, the drill bit 11 is fixedly arranged at the head end of the drill rod body 12, the tail end of the drill rod body 12 is fixedly connected with the head end of the drill handle 13, an external thread 131 is arranged on one side of the tail end of the drill handle 13, the tail end of the drill handle 13 is matched with the rotating shaft groove 32 for use, and the internal thread and the external thread of the drill handle are matched with each other. The drill shank 13 projects through the housing cover 21 into the housing interior 22.
The drill shank 13 is also fixedly sleeved with a truncated cone-shaped snap ring 132, the diameter of the snap ring 132 is gradually reduced along the direction from the head end to the tail end of the drill shank 13, and the side wall of the snap ring 132 is an inclined surface.
A fixing device 4 is arranged in the inner cavity 22 of the housing, and the fixing device 4 is used for fixing the drill rod 1 in a matching way with the snap ring 132. The fixing device 4 is provided on the side of the head end of the rotating shaft 31.
The fixture 4 includes a fixture main body 41 and a latch; the latch includes a latch body 43, a latch lever 42, and a latch lever 44.
The fixing device body 41 is fixedly connected with the inner top wall of the casing 2, the fixing device body 41 is of a hollow structure, a fixing device body opening 412 communicated with a fixing device body inner cavity 411 is arranged at the bottom of the fixing device body 41, and a casing through hole 23 communicated with the fixing device body inner cavity 411 is arranged at the top of the casing 2.
The latch body 43 is movably disposed in the fixture body cavity 411, and the diameter of the latch body 43 is larger than the diameter of the fixture body opening 412 and the housing through hole 23, and the length of the fixture body cavity 411 is larger than the length of the latch body 43, so that the latch body 43 can slide up and down in the fixture body cavity 411.
The latch prop rod 42 is fixedly disposed at the bottom of the latch body 43, and the latch pull rod 44 is fixedly disposed at the top of the latch body 43.
The latch catch lever 42 extends through the fixture body opening 412 into the housing interior 22. The length of the latch rod 42 is equal to the length of the fixing device body cavity 411. The bottom of the latch prop rod 42 is an inclined surface used in cooperation with the snap ring 132, and the inclined surface inclines downwards from left to right. When the fixture is in a standing state (the bottom of the fixture body 43 abuts against the bottom of the fixing device body cavity 411), the bottom inclined surface of the fixture abutting rod 42 and the side wall of the clamping ring 132 are located on the same horizontal line.
The latch lever 44 extends to the outside of the housing 2 through the housing through hole 23. The length of the latch pull rod 44 is greater than the length of the fixing device body cavity 411, and when the fixing device is in a standing state (the bottom of the latch body 43 is abutted to the bottom of the fixing device body cavity 411), part of the latch pull rod 44 extends out of the shell 2.
The rotation direction of the rotation shaft 31 matches with the external thread 131 at the tail end of the drill shank 13 and the internal thread 33 of the rotation shaft groove 32, that is: when the shaft 31 is rotated clockwise, the female screw 33 and the male screw 131 are right-handed screws (screws that are screwed when rotated clockwise). This prevents the drill rod 1 from falling off during rotation.
The drill rod 1 is a replaceable component, and the drill rod 1 with different flute patterns can be replaced according to requirements, or the drill rod 1 can be replaced when damaged.
The installation process of the drill rod 1 of the invention is as follows:
opening the shell cover 21, screwing the tail end of the drill shank 13 into the rotating shaft groove 32, wherein in the process, the side wall of the clamping ring 132 is abutted against the bottom inclined surface of the fixture block abutting rod 42, the fixture block main body 43 is forced to move upwards through the fixture block abutting rod 42 until the fixture block abutting rod 42 passes through the whole clamping ring 132, and the fixture block abutting rod 42 falls back again; continuously screwing the tail end of the drill shank 13 into the rotating shaft groove 32 until the drill shank is completely screwed in; the cover 21 is closed.
Finally, it is also noted that the above-mentioned lists merely illustrate a few specific embodiments of the invention. It is obvious that the invention is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (5)
1. The electric drill of conveniently changing the drill bit, its characterized in that: comprises a shell (2), a drill rod (1) and a motor (3);
the shell (2) is hollow, and one side of the shell (2) is provided with an opening and covered with a detachable shell cover (21);
the motor (3) is arranged in the inner cavity (22) of the shell; the motor (3) is provided with a rotating shaft (31); a rotating shaft groove (32) is formed at the head end of the rotating shaft (31), and an internal thread (33) is formed in the inner wall of the rotating shaft groove (32);
the drill rod (1) comprises a drill handle (13), a drill rod body (12) and a drill bit (11) which are sequentially connected and integrally formed;
the outer surface of the drill rod body (12) is provided with a chip groove spirally extending around the central axis of the drill body;
the drill bit (11) is fixedly arranged at the head end of the drill rod body (12); the tail end of the drill rod body (12) is fixedly connected with the head end of the drill handle (13);
the drill shank (13) penetrates through the shell cover (21) and extends into the inner cavity (22) of the shell;
a clamping ring (132) in a circular truncated cone shape is sleeved on the drill handle (13);
a fixing device (4) is arranged in the inner cavity (22) of the shell, and the fixing device (4) is arranged on one side of the head end of the rotating shaft (31); the device (4) is matched with the clamping ring (132) for use, and the fixing device (4) is used for being matched with the clamping ring (132) to fix the drill rod (1);
the fixing device (4) comprises a fixing device main body (41) and a clamping block; the fixture block comprises a fixture block main body (43), a fixture block abutting rod (42) and a fixture block pull rod (44);
the fixing device main body (41) is fixedly connected with the inner top wall of the shell (2), the fixing device main body (41) is of a hollow structure, a fixing device main body opening (412) communicated with an inner cavity (411) of the fixing device main body is formed in the bottom of the fixing device main body (41), and a shell through hole (23) communicated with the inner cavity (411) of the fixing device main body is formed in the top of the shell (2);
the fixture block main body (43) is movably arranged in the fixing device main body inner cavity (411), the diameter of the fixture block main body (43) is larger than the diameter of the fixing device main body opening (412) and the diameter of the shell through hole (23), and the length of the fixing device main body inner cavity (411) is larger than that of the fixture block main body (43), so that the fixture block main body (43) can slide up and down in the fixing device main body inner cavity (411);
the fixture block abutting rod (42) is fixedly arranged at the bottom of the fixture block main body (43), and the fixture block pull rod (44) is fixedly arranged at the top of the fixture block main body (43);
the fixture block abutting rod (42) penetrates through the opening (412) of the fixing device main body and extends into the inner cavity (22) of the shell;
the fixture block pull rod (44) penetrates through the shell through hole (23) and extends to the outer side of the shell (2);
an external thread (131) is arranged on one side of the tail end of the drill handle (13); the tail end of the drill handle (13) is matched with the rotating shaft groove (32) for use; the inner wall of the rotating shaft groove (32) is provided with an internal thread (33);
the diameter of the snap ring (132) is gradually reduced along the direction from the head end to the tail end of the drill shank (13).
2. The electric drill facilitating bit replacement of claim 1, wherein:
the length of the fixture block abutting rod (42) is equal to that of the inner cavity (411) of the fixing device main body; the bottom of the clamping block abutting rod (42) is an inclined plane matched with the clamping ring (132) for use, and the inclined plane inclines downwards from left to right; when the bottom of the fixture block main body (43) is abutted against the bottom of the fixing device main body inner cavity (411), the bottom inclined plane of the fixture block abutting rod (42) and the side wall of the clamping ring (132) are positioned on the same horizontal line.
3. The electric drill facilitating bit replacement of claim 2, wherein:
the length of the fixture block pull rod (44) is larger than that of the fixing device main body inner cavity (411), and when the bottom of the fixture block main body (43) is abutted to the bottom of the fixing device main body inner cavity (411), part of the fixture block pull rod (44) extends out of the shell (2).
4. The electric drill facilitating bit replacement of claim 3, wherein:
the rotating direction of the rotating shaft (31) is matched with the external thread (131) at the tail end of the drill shank (13) and the internal thread (33) of the rotating shaft groove (32).
5. Use of a drill facilitating bit replacement according to any of claims 1 to 4, wherein: the method comprises the following steps:
the shell cover (21) is opened, the tail end of the drill shank (13) is screwed into the rotating shaft groove (32), in the process, the side wall of the clamping ring (132) is abutted to the bottom inclined plane of the fixture block abutting rod (42), the fixture block main body (43) is forced to move upwards through the fixture block abutting rod (42), and the fixture block abutting rod (42) falls back again until the fixture block abutting rod (42) passes through the whole clamping ring (132); continuously screwing the tail end of the drill shank (13) into the rotating shaft groove (32) until the drill shank is completely screwed in; the cover is covered back to the shell cover (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010675305.8A CN111975040B (en) | 2020-07-14 | 2020-07-14 | Electric drill with drill bit convenient to replace and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010675305.8A CN111975040B (en) | 2020-07-14 | 2020-07-14 | Electric drill with drill bit convenient to replace and using method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111975040A CN111975040A (en) | 2020-11-24 |
| CN111975040B true CN111975040B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010675305.8A Active CN111975040B (en) | 2020-07-14 | 2020-07-14 | Electric drill with drill bit convenient to replace and using method |
Country Status (1)
| Country | Link |
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| CN (1) | CN111975040B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604502A (en) * | 2016-03-11 | 2016-05-25 | 柳超 | Over-well drill bit pressing mechanism for well drilling |
| CN109875641A (en) * | 2019-04-02 | 2019-06-14 | 高玖峰 | A kind of Mirco-traumatic skull drill of improved neurosurgery clinical operation |
| CN209228316U (en) * | 2018-11-26 | 2019-08-09 | 广西中煤地质有限责任公司 | A kind of hydrology hole drilling rig |
| CN210439985U (en) * | 2019-08-10 | 2020-05-01 | 无锡华信石油机械有限公司 | Easy-to-install drill rod joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7462004B2 (en) * | 2005-05-19 | 2008-12-09 | Smart Tools Inc. | Drill fixture |
-
2020
- 2020-07-14 CN CN202010675305.8A patent/CN111975040B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604502A (en) * | 2016-03-11 | 2016-05-25 | 柳超 | Over-well drill bit pressing mechanism for well drilling |
| CN209228316U (en) * | 2018-11-26 | 2019-08-09 | 广西中煤地质有限责任公司 | A kind of hydrology hole drilling rig |
| CN109875641A (en) * | 2019-04-02 | 2019-06-14 | 高玖峰 | A kind of Mirco-traumatic skull drill of improved neurosurgery clinical operation |
| CN210439985U (en) * | 2019-08-10 | 2020-05-01 | 无锡华信石油机械有限公司 | Easy-to-install drill rod joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111975040A (en) | 2020-11-24 |
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Denomination of invention: Electric drill for convenient replacement of drill bits and its usage method Effective date of registration: 20231201 Granted publication date: 20220712 Pledgee: Zhejiang Deqing Rural Commercial Bank Co.,Ltd. Xinshi sub branch Pledgor: Zhejiang Guanghui metal material Co.,Ltd. Registration number: Y2023980068575 |
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