CN113600870A - Electric tool with protection device - Google Patents
Electric tool with protection device Download PDFInfo
- Publication number
- CN113600870A CN113600870A CN202111039528.6A CN202111039528A CN113600870A CN 113600870 A CN113600870 A CN 113600870A CN 202111039528 A CN202111039528 A CN 202111039528A CN 113600870 A CN113600870 A CN 113600870A
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- CN
- China
- Prior art keywords
- contact piece
- matched
- limiting plate
- plate
- main shaft
- Prior art date
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 238000004080 punching Methods 0.000 claims abstract description 6
- 230000004044 response Effects 0.000 claims description 14
- 230000005389 magnetism Effects 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 2
- 230000001012 protector Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses an electric tool with a protective device, which comprises a magnetic attraction seat, a drill body, a main shaft and a slide rail, wherein a detection part matched with the main shaft and used for detecting the resistance of the main shaft during punching is arranged in the drill body, a detection plate is arranged on the detection part, a slide rheostat matched with the detection plate is arranged on the drill body, the slide rheostat, an electromagnet in the magnetic attraction seat and a power supply form a loop, and the slide rheostat is used for adjusting the current passing through the electromagnet.
Description
Technical Field
The invention relates to the technical field of electric tools, in particular to an electric tool with a protection device.
Background
In the modern production and manufacturing process, the electric tool is widely used, the electric tool is diversified in types, and comprises an electric hand drill, a polishing machine, a cutting machine, a magnetic drill and the like, wherein the magnetic drill is usually used for outdoor or high-altitude operation, a workpiece is adsorbed on a ferromagnetic material through an electromagnet to be punched, and the punching position is usually a hole in a vertical wall. The base is adsorbed on the work piece with the electro-magnet absorption principle to the brill is inhaled to magnetism, and the electro-magnet can make the electro-magnet generate heat seriously if lasting high power high current operation in work usually, leads to magnetism to descend, makes magnetism inhale and bores the drill bit and support to have the risk of dropping after producing the interact power with the work piece punching, and simultaneously, the electro-magnet lasts work consumption also great, extravagant energy.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an electric tool with a protection device.
In order to solve the technical problems, the invention is solved by the following technical scheme: an electric tool with a protection device comprises a magnetic suction seat, a drill body, a main shaft and a slide rail.
In the above scheme, preferably, a detection part which is matched with the main shaft and used for detecting the resistance of the main shaft during punching is arranged in the drill body, a detection plate is arranged on the detection part, a slide rheostat which is matched with the detection plate is arranged on the drill body, the slide rheostat, an electromagnet and a power supply in the magnetic attraction seat form a loop, the slide rheostat is used for adjusting the current passing through the electromagnet, and the drill has the advantages that: the device is capable of adjusting the current of the electromagnet to change the magnetic force of the electromagnet and further reducing the energy consumption of the magnetic drill, so that the magnetic drill can adjust the magnetic force according to different resistances during drilling.
In the above-mentioned scheme, it is preferred, the detection portion includes pick-up plate and first spring, be equipped with on the pick-up plate with first spring matched with first boss, first spring pot head is located on first boss and is leaned on with the pick-up plate top, and the other end leans on with boring body casing top, and its beneficial effect lies in: a specific structure of a detecting portion is provided so that the detecting portion can detect resistance when a drill drills.
In the above scheme, it is preferred, be equipped with on the pick-up plate with main shaft matched with first hole body, be equipped with on the main shaft with first hole body matched with second boss, its beneficial effect lies in: a specific rotation matching mode of the spindle and the detection plate is provided, so that the detection plate can perform pressure detection when the spindle rotates.
In the above scheme, it is preferred, slide rheostat includes slide bar, resistance coil and slider, the slider slides and locates on the slider, be equipped with the contact piece that contacts with resistance coil on the slider, slide bar and resistance coil are fixed in on the both sides support, slide bar one end is equipped with first interface, electric drill coil one end is equipped with the second interface, and its beneficial effect lies in: provides a specific structure of the slide rheostat, which enables the slide rheostat to specifically adjust the resistance function.
In the above scheme, it is preferred, be equipped with on the slider with pick-up plate matched with draw-in groove, in the draw-in groove was located to the pick-up plate card, its beneficial effect lies in: the detection board can drive the sliding block on the sliding rheostat to slide so as to adjust the resistance of current passing through the sliding rheostat.
In the above scheme, it is preferred, be equipped with on the seat of inhaling magnetically and cooperate the response portion with the electro-magnet, the response portion is including responding to round pin, first limiting plate and second limiting plate, be equipped with in the seat of inhaling magnetically and sell matched with fixing base with the response, be equipped with first cavity in the fixing base, response round pin one end links to each other with the second limiting plate, and the other end is worn to establish the fixing base and is equipped with first limiting plate in first cavity, be equipped with in the first cavity with first limiting plate matched with second spring, its beneficial effect lies in: the induction part on the magnetic suction seat is used for inducing whether the magnetic suction seat is completely attracted with a workpiece or not.
In the above scheme, it is preferred, be equipped with third contact piece and fourth contact piece on the fixing base, the second limiting plate is the current conducting plate, the response round pin is insulating material, the second limiting plate slides the back and links to each other with third contact piece and fourth contact piece, and its beneficial effect lies in: a second loop of the electromagnet is provided, the second limiting plate is connected with the third contact piece and the fourth contact piece after sliding, and current is directly supplied to the electromagnet through the second loop.
In the above-mentioned scheme, it is preferred that third contact piece and fourth contact piece link to each other with the electro-magnet respectively, and its beneficial effect lies in: a loop formed by the third contact piece, the fourth contact piece and the electromagnet is provided, and current is enabled to pass through the loop to supply power to the electromagnet.
The invention has the beneficial effects that: the invention provides a device capable of detecting drilling resistance to change the suction force of a magnetic drill and further reduce the energy consumption of the magnetic drill, and the protection device can prevent the magnetic drill from falling off after the magnetic drill is subjected to external force, so that the safety of the magnetic drill is greatly improved, and the energy is saved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a schematic view of a slide rheostat according to the present invention.
FIG. 3 is a schematic view of a sensing portion of the present invention.
Fig. 4 is a schematic view of the structure of the detection plate of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 4, an electric tool with a protection device includes a magnetic attraction seat 1, a drill body 2, a spindle 3 and a slide rail 4, where the slide rail 4 is disposed on the magnetic attraction seat 1, the drill body 2 is disposed on the slide rail 4, and the spindle 3 is slidably disposed in the drill body 2 and connected to a driving motor through a gear set, which is a prior art.
The drill is characterized in that a bearing is arranged between the main shaft 3 and the drill body 2, the main shaft 3 can slide in the bearing, one end of the main shaft 3, which is arranged outside the drill body 2, is provided with a drill chuck, the other end of the main shaft is arranged in the drill body 2, and the inner wall of the right end of the drill body 2 is provided with a detection part matched with the main shaft 3.
The main shaft 3 is arranged in the drill body 2, one end of the main shaft is provided with a second boss 14, the second boss 14 is a cylindrical boss, the detection part is provided with a detection plate 5 matched with the second boss 14, one side, close to the main shaft 3, of the detection plate 5 is provided with a first hole body 13 through which the second boss 14 can rotate, the detection plate 5 is provided with a first boss 12 in a protruding mode towards the right, the first hole body 13 is arranged in the first boss 12, and a plane bearing is arranged between the main shaft 3 and the detection plate 5, so that the detection plate 5 can detect the axial resistance fed back when the main shaft 3 rotates to punch.
The first boss 12 is sleeved with a first spring 11, and two ends of the first spring 11 respectively abut against the inner walls of the detection plate 5 and the right end of the drill body 2.
The lower end of the detection plate 5 extends downwards in an arc shape to form a clamping plate 101, the clamping plate 101 is clamped on a sliding block 23 of the sliding rheostat 6, the sliding rheostat 6 comprises a sliding rod 21, a resistance coil 22 and a sliding block 23, the sliding block 23 is arranged on the sliding rod 21 in a sliding mode, a clamping groove 28 matched with the clamping plate 101 is formed in the sliding block 23, the clamping plate 101 is connected with the sliding block 23 through a pin shaft after being clamped in the clamping groove 28, a contact piece 24 in contact with the resistance coil 22 is fixedly arranged on the sliding block 23, and the contact piece 24 is a conductive piece.
The slide bar 21 and the resistance coil 22 are arranged in parallel, two sides of the slide bar are fixed through a support 25, the support 25 is fixedly arranged in the drill body 2, a first connector 26 is arranged at the right end of the slide bar 21, a second connector 27 is arranged at the right end of the resistance coil 22, the slide block 23 slides rightwards to reduce the resistance from the first connector 26 to the second connector 27, and the resistance is increased in the reverse direction.
The magnetic attraction seat 1 is internally provided with an electromagnet 7 capable of adsorbing tools, the electromagnet 7 is connected with a power supply through a cable, the electromagnet 7 is connected with the power supply through the cable, namely, power current is transmitted to the electromagnet 7 after passing through the slide rheostat 6, when a sliding block 23 on the slide rheostat 6 slides rightwards, the resistance of the slide rheostat 6 is reduced, the current entering the electromagnet 7 is increased, and the electromagnet 7, the slide rheostat 6 and the power supply form a first loop.
The magnetic attraction seat 1 is provided with a sensing part matched with an electromagnet 7, the sensing part comprises a sensing pin 31, the sensing pin 31 is arranged at the bottom of the magnetic attraction seat 1 in a sliding manner, a fixing seat 34 is arranged in the magnetic attraction seat 1, a first cavity 35 is arranged in the fixing seat 34, plastic which is preferred by the fixing seat 34 is glued with the magnetic attraction seat 1, a through hole which can be penetrated by the sensing pin 31 is formed in the fixing seat 34, one end of the sensing pin 31 is fixedly provided with a second limiting plate 33, the second limiting plate 33 is arranged outside the right end face of the fixing seat 34, the other end of the sensing pin 31 penetrates through the fixing seat 34 to enable the end part of the sensing pin 31 to be arranged outside the magnetic attraction seat 1, the middle of the sensing pin 31 is provided with a first limiting plate 32, and the first limiting plate 32 is arranged in the first cavity 35.
The second spring 36 is disposed in the first cavity 35, the second spring 36 is sleeved on the sensing pin 31 between the first limiting plate 32 and the human limiting plate 33, and two ends of the second spring are respectively abutted against the bottoms of the right cavities of the first limiting plate 32 and the first cavity 35, that is, the left end of the sensing pin 31 is pressed to compress the second spring 36, so as to further drive the second limiting plate 33 to slide rightward.
Set firmly third contact piece 41 and fourth contact piece 42 on the fixing base 34 right side terminal surface, third contact piece 41 and fourth contact piece 42 are located between second limiting plate 33 and the fixing base 34 right side terminal surface, the preferred plastics of response round pin 31, second limiting plate 33 is the current-conducting plate, preferred copper, pass through screw connection between response round pin 31 and the second limiting plate 33, response round pin 31 both sides are arranged in to third contact piece 41 and fourth contact piece 42, and two contact pieces are not continuous, and when second spring 36 was in the free extension state, second limiting plate 33 laminated with third contact piece 41 and fourth contact piece 42 respectively.
The third contact piece 41 and the fourth contact piece 42 are connected with the electromagnet 7 and the power supply through cables, that is, when the second limiting plate 33 is respectively attached and contacted with the third contact piece 41 and the fourth contact piece 42, the third contact piece 41, the fourth contact piece 42, the electromagnet 7 and the power supply form a second loop, that is, the circuit formed by the third contact piece 41, the fourth contact piece 42 and the second limiting plate 33 is arranged in parallel with the slide rheostat 6, when the second loop is communicated, because the resistance in the second loop is smaller than that of the slide rheostat 6, the power supply current preferentially passes through the second loop, so that the current of the electromagnet 7 reaches the maximum and the magnetic force is strongest.
A method of using a power tool having a guard as described above: when the magnetic suction drill is used, the magnetic suction drill is electrified, the induction pin 31 is freely stretched by the second spring 36 and is arranged at the outer side of the magnetic suction seat 1, the second limiting plate 33 is contacted with the third contact piece 41 and the fourth contact piece 42, the second loop is in an electrified state, power current preferentially supplies power to the electromagnet 7 through the second loop, the electromagnet 7 has the maximum magnetic force, the magnetic suction seat 1 is adsorbed on a workpiece, the induction pin 31 pushes rightwards to cut off the second loop, and at the moment, the power supply supplies power to the electromagnet 7 through the loop of the sliding rheostat 6, namely, the power is supplied by the first loop, the power of the electromagnet 7 is reduced, the energy consumption is saved, the spindle 3 rotates to punch, the larger the resistance on the spindle 3 is, the detection plate 5 is driven to compress the first spring 11, and meanwhile, the slide block on the slide rheostat 6 is driven to move rightwards, so that the resistance is reduced, the current passing through the first loop is increased, the magnetic force of the electromagnet 7 is enhanced, and the magnetic force of different electromagnets 7 is adapted under the condition of meeting different resistances during punching;
because of magnetism is inhaled and is bored the use operating mode complicacy, there is external force impact work piece in the use, when the great striking work piece of external force, magnetism is inhaled seat 1 and work piece and can be produced the angle because of magnetic force is not enough in the twinkling of an eye, response round pin 31 slides left under 36 tension effects of second spring this moment, make second limiting plate 33 and third contact piece 41 and fourth contact piece 42 contact, the second return circuit is in the on-state, mains current passes through the second return circuit and supplies power for electro-magnet 7, electro-magnet 7 is the biggest magnetic force, adsorb the instrument again, alleviate the external force that the work piece received in the twinkling of an eye, guarantee that magnetism is inhaled and is bored and not drop.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides an electric tool with protector, includes magnetism suction seat (1), bores body (2), main shaft (3) and slide rail (4), its characterized in that: the drill is characterized in that a detection part which is matched with the main shaft (3) and used for detecting the resistance of the main shaft (3) during punching is arranged in the drill body (2), a detection plate (5) is arranged on the detection part, a sliding rheostat (6) which is matched with the detection plate (5) is arranged on the drill body (2), the sliding rheostat (6) and an electromagnet (7) and a power supply in the magnetic suction seat (1) form a loop, and the sliding rheostat (6) is used for adjusting the current passing through the electromagnet (7).
2. The power tool with the guard according to claim 1, wherein: the detection part comprises a detection plate (5) and a first spring (11), a first boss (12) matched with the first spring (11) is arranged on the detection plate (5), one end of the first spring (11) is sleeved on the first boss (12) and abuts against the detection plate (5), and the other end of the first spring abuts against a shell of the drill body (2).
3. The power tool with the guard according to claim 1, wherein: the detection plate (5) is provided with a first hole body (13) matched with the main shaft (3), and the main shaft (3) is provided with a second boss (14) matched with the first hole body (13).
4. The power tool with the guard according to claim 1, wherein: the slide rheostat (6) comprises a slide rod (21), a resistance coil (22) and a slide block (23), the slide block (23) is arranged on the slide block (21) in a sliding mode, a contact piece (24) which is in contact with the resistance coil (22) is arranged on the slide block (23), the slide rod (21) and the resistance coil (22) are fixed on supports (25) on two sides, a first interface (26) is arranged at one end of the slide rod (21), and a second interface (27) is arranged at one end of the electric drill coil (22).
5. The power tool with the guard according to claim 4, wherein: the slider (23) is provided with a clamping groove (28) matched with the detection plate (5), and the detection plate (5) is clamped in the clamping groove (28).
6. The power tool with the guard according to claim 1, wherein: the magnetism is inhaled and is equipped with on seat (1) and cooperatees response portion with electro-magnet (7), response portion is including response round pin (31), first limiting plate (32) and second limiting plate (33), the magnetism is inhaled and is equipped with in seat (1) and responds to round pin (31) matched with fixing base (34), be equipped with first cavity (35) in fixing base (34), response round pin (31) one end links to each other with second limiting plate (33), and the other end is worn to establish fixing base (34) and is equipped with first limiting plate (32) in first cavity (35), be equipped with in first cavity (35) with first limiting plate (32) matched with second spring (36).
7. The power tool with the guard according to claim 6, wherein: be equipped with third contact piece (41) and fourth contact piece (42) on fixing base (34), second limiting plate (33) are the conducting plate, response round pin (31) are insulating material, second limiting plate (33) slide the back and link to each other with third contact piece (41) and fourth contact piece (42).
8. The power tool with the guard according to claim 6, wherein: the third contact piece (41) and the fourth contact piece (42) are respectively connected with the electromagnet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111039528.6A CN113600870B (en) | 2021-09-06 | 2021-09-06 | Electric tool with protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111039528.6A CN113600870B (en) | 2021-09-06 | 2021-09-06 | Electric tool with protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113600870A true CN113600870A (en) | 2021-11-05 |
| CN113600870B CN113600870B (en) | 2023-06-16 |
Family
ID=78342661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111039528.6A Active CN113600870B (en) | 2021-09-06 | 2021-09-06 | Electric tool with protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113600870B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113927544A (en) * | 2021-11-09 | 2022-01-14 | 浙江精力工具有限公司 | High stability electron dropout electric hammer |
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