CN113232104B

CN113232104B - Hand-held type lithium electricity woodmilling

Info

Publication number: CN113232104B
Application number: CN202110683083.9A
Authority: CN
Inventors: 李忠孝; 王伟建
Original assignee: Zhejiang Dongli Electric Appliance Co ltd
Current assignee: Zhejiang Dongli Electric Appliance Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-05-27
Anticipated expiration: 2041-06-21
Also published as: CN113232104A

Abstract

The invention discloses a handheld lithium battery electric wood milling machine which comprises a motor fixing frame, wherein a motor is arranged on the inner side of the motor fixing frame, tightening mechanisms are arranged on two sides of the motor fixing frame, a sleeve is arranged above the tightening mechanisms, a supporting rod is arranged below the tightening mechanisms, the outer walls of the tightening mechanisms are connected with electromagnetic control mechanisms, sliding plates are fixed at the lower ends of the supporting rods, the motor is a double-head motor, an air guide box is arranged above the motor, a rotating shaft at one end of the motor is connected with a cutting head through a coupling, an air guide fan is fixed on the rotating shaft at one end of the motor, and the air guide fan is positioned inside the air guide box; the sliding plate includes a sliding plate main body. This hand-held type lithium bakelite mills is provided with dust collection structure, can collect the dirt bits simultaneously and avoid the dirt bits to enter into under the slide that the bakelite milled, prevent that the dirt bits from milling the bakelite jack-up, improve the stability that the bakelite milled the removal, increase the removal effect that the bakelite milled, guarantee the stability at the processing position that the bakelite milled, increase the processing effect that the bakelite milled.

Description

Hand-held type lithium electricity woodmilling

Technical Field

The invention relates to the technical field of electric wood milling, in particular to a handheld lithium electric wood milling machine.

Background

A wood milling machine is a power tool commonly used in wood working, particularly for grooving, cutting, finishing, deburring and other rotary cutting operations on workpieces. In the use process, for the convenience of operation, the bakelite milling machine is often fixed below a workbench provided with an opening in an inverted mode, so that a working head of the bakelite milling machine extends out of the opening and is used for cutting a workpiece placed on the workbench.

(one) current hand-held type's bakelite mills in-process that uses owing to slide through the people is manual, gets into the piece easily between the slide of bakelite mill bottom and the material, and the slide can be pushed up by the piece like this to influence the processing of bakelite mill, the structure of the dust absorption bits on the slide of bakelite mill is fairly simple simultaneously, can not collect the piece, and the piece still influences the work of bakelite mill easily like this.

In the using process of the existing handheld electric wood milling machine, the height limiting structure of the electric wood milling machine is easy to loosen, so that the condition of inaccurate height positioning of the electric wood milling machine is caused, and the processing work of the electric wood milling machine is influenced.

And (III) in the using process of the handheld electric wood milling machine, if the user operates improperly, the handheld electric wood milling machine is loosened from the hand, the loosened handheld electric wood milling machine still continues to operate, and a cutting structure on the handheld electric wood milling machine can injure the user and increase the danger.

(IV) the battery structure on the current hand-held type bakelite mills is in one side of motor, and at the in-process that uses like this, the both sides atress of hand-held type bakelite mill is unbalanced, and vibrations can appear at the in-process that uses in hand-held type bakelite mill simultaneously, leads to the skew to appear at the in-process that uses in hand-held type bakelite mill like this, reduces the processing effect that hand-held type bakelite mill.

Disclosure of Invention

The invention aims to provide a handheld lithium electric wood milling machine, which solves the problems that in the using process of the existing handheld electric wood milling machine in the market, the sliding plate at the bottom of the electric wood milling machine slides manually by people, and chips are easy to enter between the sliding plate and materials, so that the sliding plate can be jacked up by the chips, the processing of the electric wood milling machine is influenced, and meanwhile, the structure of dust absorption chips on the sliding plate of the electric wood milling machine is simple, the chips cannot be collected, and the chips still easily influence the processing of the electric wood milling machine.

In order to achieve the purpose, the invention provides the following technical scheme: a handheld lithium battery electric wood milling machine comprises a motor fixing frame, wherein a motor is arranged on the inner side of the motor fixing frame, tightening mechanisms are arranged on two sides of the motor fixing frame, a sleeve is arranged above each tightening mechanism, a supporting rod is arranged below each tightening mechanism, the outer wall of each tightening mechanism is connected with an electromagnetic control mechanism, a sliding plate is fixed at the lower end of each supporting rod, the motor is a double-head motor, an air guide box is arranged above the motor, a rotating shaft at one end of the motor is connected with a cutting head through a coupling, an air guide fan is fixed on a rotating shaft at one end of the motor, and the air guide fan is located inside the air guide box;

the sliding plate comprises a sliding plate main body, a cutting head mounting hole corresponding to the cutting head is formed in the center of the sliding plate main body, air guide channels distributed in an annular mode are formed in the inner wall of the sliding plate main body, a mesh enclosure is arranged below the cutting head mounting hole of the sliding plate main body, and a through hole is formed in the upper portion and the lower portion of the mesh enclosure.

Furthermore, a spring is arranged inside the sleeve, one end of the spring is fixed on the inner wall of the sleeve, and the other end of the spring is fixed at one end of the supporting rod.

Further, it is including reducing the shell to reduce the mechanism, reduces the inside cavity form that is of shell, reduces the inside of shell and is provided with the adapter sleeve, and the outer wall that reduces the shell is provided with the handle, and the outer wall that reduces the shell rotates and is provided with the transfer line, and the one end of transfer line is fixed with the extrusion piece, and the transfer line other end is provided with the turning block, and the adapter sleeve cover is established in the outside of bracing piece, and one side that is close to the transfer line of adapter sleeve is protruding form, has seted up the incision in the arch of adapter sleeve, the inboard of adapter sleeve is provided with annular absorption magnetic ring, the outside of turning block is semi-circular, and the turning block top is in the arch of adapter sleeve.

Furthermore, a control switch is arranged above the handle and connected with the motor and the battery pack through electric wires.

Furthermore, a through hole is formed below the air guide box, an air guide pipe is arranged on the outer wall of the air guide box, the other end of the air guide pipe is fixed on the sliding plate main body, and the other end of the air guide pipe is communicated with the inside of the air guide pipe.

Further, an annular opening is formed in the upper portion of the motor fixing frame, a fixing cover is arranged on the outer side of the opening of the motor fixing frame, a battery pack is arranged below the fixing cover, symmetrical buckles are arranged on the outer wall of the motor fixing frame, truncated pyramid-shaped bulges are arranged on the outer wall of the buckle, and the outer wall of the buckle is convexly clamped on the outer wall of the fixing cover.

Furthermore, one side of the fixing cover close to the air guide pipe is in an opening shape, and the external shape of the fixing cover is matched with that of the motor fixing frame.

Further, still include positioning mechanism, positioning mechanism includes the fixed cover of locating lever, and the through-hole has been seted up at the center of the fixed cover of locating lever, is provided with the locating lever in the fixed cover center through-hole of locating lever, and the threaded hole has been seted up to the outer wall of the fixed cover of locating lever, and the threaded hole of the fixed cover outer wall of locating lever is provided with the set screw, the lower extreme of the fixed cover of locating lever is seted up flutedly, and is provided with power off switch in the fixed cover lower extreme recess of locating lever.

Furthermore, the upper end of the power-off switch is provided with a connecting wire, and the connecting wire penetrates through the positioning rod to be connected with the battery pack.

Furthermore, electromagnetic control mechanism includes the control line, and the one end of control line is connected with the control line mount pad, and the other end of control line mount pad passes through the thread tightening in the sliding plate main part, and the outer wall of sliding plate main part sets up the through-hole corresponding with control line mount pad position, the control line mount pad is kept away from the one end of control line and is seted up the recess, and is provided with the switch dead lever in the control line mount pad recess, and the outside of switch dead lever is provided with positioning spring, and the one end that the control line mount pad was kept away from to the switch dead lever is provided with magnetic ring control switch, and magnetic ring control switch is in the inboard of ball fixing base, the lower extreme laminating of ball fixing base has the ball, the outside cover of ball is equipped with annular ball stationary blade, and fixing of ball stationary blade is inboard at sliding plate main part through-hole.

Compared with the prior art, the invention has the beneficial effects that:

one of them, this hand-held type lithium bakelite mills and is provided with dust collection structure, can collect the dirt bits simultaneously and avoid under the dirt bits enters into the slide that the bakelite milled, prevent that the dirt bits from milling jack-up with the bakelite, improve the stability that the bakelite milled the removal, increase the removal effect that the bakelite milled, guarantee the stability at the processing position that the bakelite milled, increase the processing effect that the bakelite milled.

Secondly, this hand-held type lithium electricity woodmilling is provided with high limit structure, and this limit structure can carry out the work of pressing from both sides tightly simultaneously, can firmly fix the motor, avoids the condition that the motor appears rocking, improves the device's stability.

Thirdly, this hand-held type lithium electricity bakelite miller is provided with the auto-power-off structure, and after the device took place to empty, the work of outage can be carried out automatically to the device, makes the device can self-closing after breaking away from user's control, improves the device's security.

Fourthly, this hand-held type lithium electricity woodmilling is provided with the group battery structure, can make the device remove and do not need the external connection anywhere, and the group battery of the device is the annular and distributes in the outside of motor simultaneously, and the focus of the device is in the position at center like this, increases the stability of the device, makes the device be difficult to the condition that great skew appears at the in-process that removes.

Drawings

FIG. 1 is a schematic diagram of a hand-held lithium-ion electric wood milling machine according to the present invention;

FIG. 2 is a top view of a hand-held lithium-ion electric wood mill in accordance with the present invention;

FIG. 3 is a side view of a hand-held lithium-ion electric wood mill of the present invention;

FIG. 4 is a schematic structural view of a hand-held lithium-ion electric wood milling tightening mechanism according to the present invention;

FIG. 5 is a cross-sectional view of a hand-held lithium-ion electric wood milling adapter sleeve of the present invention;

FIG. 6 is a schematic structural view of a hand-held lithium-ion electric wood milling positioning mechanism according to the present invention;

FIG. 7 is a cross-sectional view taken at A-A of the hand-held lithium electric wood milling machine of the present invention shown in FIG. 3;

FIG. 8 is a schematic view of a handheld lithium battery wood milling mesh enclosure structure according to the present invention

Fig. 9 is an enlarged schematic structural view of a hand-held lithium electric wood milling machine of the invention shown in fig. 7 at B.

In the figure: 1. air duct, 2, air guide box fixed block, 3, sleeve, 4, tightening mechanism, 401, tightening housing, 402, fastening sleeve, 403, rotating block, 404, transmission rod, 405, extrusion block, 406, adsorption magnetic ring, 5, support rod, 6, sliding plate, 601, sliding plate main body, 602, cutting head mounting hole, 603, mesh cover, 604, air guide channel, 7, air guide box, 8, control switch, 9, handle, 10, motor, 11, fixed cover, 12, motor fixed frame, 13, buckle, 14, positioning mechanism, control wire, positioning rod fixed sleeve, 1402, positioning rod, 1403, positioning screw, 1404, power-off switch, 15, cutting head, 16, spring, 17, air guide fan, 18, battery pack, 19, electromagnetic control mechanism, 1901, control wire, 1902, control wire mounting seat, 1903, switch fixed rod, 1904, positioning spring, 1905, fixed seat, 1906, magnetic ring control switch, 1907. ball fixing piece 1908 and balls.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a handheld lithium battery electric wood milling machine comprises a motor fixing frame 12, wherein a motor 10 is arranged on the inner side of the motor fixing frame 12, tightening mechanisms 4 are arranged on two sides of the motor fixing frame 12, a sleeve 3 is arranged above the tightening mechanisms 4, a supporting rod 5 is arranged below the tightening mechanisms 4, an electromagnetic control mechanism 19 is connected to the outer wall of each tightening mechanism 4, a sliding plate 6 is fixed to the lower end of each supporting rod 5, the motor 10 is a double-head motor, an air guide box 7 is arranged above the motor 10, a rotating shaft at one end of the motor 10 is connected with a cutting head 15 through a coupling, an air guide fan 17 is fixed to a rotating shaft at one end of the motor 10, and the air guide fan 17 is located inside the air guide box 7;

the sliding plate 6 comprises a sliding plate main body 601, a cutting head mounting hole 602 corresponding to the position of the cutting head 15 is formed in the center of the sliding plate main body 601, air guide channels 604 distributed annularly are formed in the inner wall of the sliding plate main body 601, a mesh enclosure 603 is arranged below the cutting head mounting hole 602 of the sliding plate main body 601, through holes are formed in the upper portion and the lower portion of the mesh enclosure 603, a mesh enclosure 603 is arranged on the inner side of the sliding plate 6 of the structure, meanwhile, the air guide channels 604 inside the sliding plate 6 are communicated with the air guide pipe 1, the air guide pipe 1 generates suction under the action of an air guide fan 17 inside the air guide box 7, so that air inside the air guide channels 604 can be sucked into the air guide pipe 1, scraps generated by processing materials by the cutting head 15 can be sucked into the mesh enclosure 603, the scraps are stored through the mesh enclosure 603, and the scraps are prevented from influencing the position between the sliding plate 6 and the materials.

The inside of sleeve pipe 3 is provided with spring 16, the one end of spring 16 is fixed on the sleeve pipe 3 inner wall, the one end at bracing piece 5 is fixed to the other end of spring 16, the sleeve pipe 3 of this structure plays fixed spring 16's effect, the one end of spring 16 is fixed on bracing piece 5, bracing piece 5 can push up spring 16 upwards, the other end of spring 16 can push up sleeve pipe 3 upwards, can control the height of tightening mechanism 4 and the fixed frame 12 of motor like this, avoid the fixed frame 12 of motor to move down.

The tightening mechanism 4 comprises a tightening shell 401, the inside of the tightening shell 401 is hollow, a tightening sleeve 402 is arranged inside the tightening shell 401, a handle 9 is arranged on the outer wall of the tightening shell 401, a transmission rod 404 is rotatably arranged on the outer wall of the tightening shell 401, an extrusion block 405 is fixed at one end of the transmission rod 404, a rotating block 403 is arranged at the other end of the transmission rod 404, the tightening sleeve 402 is sleeved outside the support rod 5, one side, close to the transmission rod 404, of the tightening sleeve 402 is convex, a notch is formed in a bulge of the tightening sleeve 402, an annular adsorption magnetic ring 406 is arranged on the inner side of the tightening sleeve 402, the outer portion of the rotating block 403 is semicircular, the rotating block 403 abuts against the bulge of the tightening sleeve 402, the tightening shell 401 of the structure plays a role of containing the tightening sleeve 402, and the rotating block 403 is arranged outside the device, so that a user can drive the transmission rod 404 and the extrusion block 405 to rotate through the rotating block 403, the extrusion block 405 can extrude the opening bulge of the fastening sleeve 402, so that the fastening sleeve 402 can clamp the extrusion block 405 to fix the position of the tightening shell 401, and the situation that the tightening shell 401 slides outside the supporting rod 5 is avoided.

The control switch 8 is arranged above the handle 9, the control switch 8 is connected with the motor 10 and the battery pack 18 through electric wires, the control switch 8 on the outer wall of the handle 9 of the structure plays a role of controlling the motor 10, and meanwhile, the control switch 8 is arranged above the handle 9, so that a user can conveniently open and close the control switch 8.

The through-hole has been seted up to air guide box 7's below, and air guide box 7's outer wall is provided with air duct 1, air duct 1's the other end is fixed on sliding plate main part 601, air duct 1's the other end and the inside of air guide way 604 are linked together, the through-hole of the air guide box 7 below of this structure plays the effect of giving vent to anger, and when the inside air of air guide box 7 was derived under the effect of air guide fan 17, air duct 1 can produce suction, the inside air of air guide way 604 is derived, make air guide way 604 produce suction.

Annular opening has been seted up to the top of the fixed frame 12 of motor, and the opening outside of the fixed frame 12 of motor is provided with fixed lid 11, the below of fixed lid 11 is provided with group battery 18, the outer wall of the fixed frame 12 of motor is provided with buckle 13 of symmetry form, and buckle 13 outer wall is provided with the arch of frustum of a prism shape, the protruding card of buckle 13 outer wall is at the outer wall of fixed lid 11, the fixed frame 12 top opening of motor of this structure plays the effect that holds group battery 18, make group battery 18 be in motor 10 position all around, make the device's focus be in the position at center, increase the device's stability, buckle 13 can block fixed lid 11 top simultaneously, avoid fixed lid 11 to break away from the fixed frame 12 of motor.

One side of the fixing cover 11 close to the air duct 1 is in an opening shape, the external shape of the fixing cover 11 is matched with the external shape of the motor fixing frame 12, the opening of the fixing cover 11 of the structure can be bent, so that a gap can be opened on the fixing cover 11, the fixing cover 11 is conveniently separated from the outside of the air duct 1, and the fixing cover 11 can be detached from the device.

The positioning mechanism 14 comprises a positioning rod fixing sleeve 1401, a through hole is arranged at the center of the positioning rod fixing sleeve 1401, a positioning rod 1402 is arranged in the through hole at the center of the positioning rod fixing sleeve 1401, a threaded hole is arranged on the outer wall of the positioning rod fixing sleeve 1401, a positioning screw 1403 is arranged in the threaded hole at the outer wall of the positioning rod fixing sleeve 1401, a groove is arranged at the lower end of the positioning rod fixing sleeve 1401, a power-off switch 1404 is arranged in the groove at the lower end of the positioning rod fixing sleeve 1401, the positioning rod 1402 can move up and down in the positioning rod fixing sleeve 1401, the positioning screw 1403 at the outer part of the positioning rod fixing sleeve 1401 can fix the positioning rod 1402, the moving distance of the motor fixing frame 12 is controlled through the extending length of the positioning rod 1402, so as to control the moving distance of the cutting head 15, the excessive moving of the cutting head 15 is avoided, the power-off switch 1404 is arranged at the lower end of the positioning rod 1402, and the device can normally work when the power-off switch 1404 contacts with the upper end of the sliding plate 6 to extrude, when the device is accidentally dumped, the power-off switch 1404 cannot be pressed by the sliding plate 6, so that the device can perform power-off operation, the situation that the cutting head 15 continues to rotate to hurt a user when the device is accidentally dumped is avoided, and the safety of the device is improved.

The upper end of the power-off switch 1404 is provided with a connecting wire, and the connecting wire passes through the positioning rod 1402 to be connected with the battery pack 18, and the power-off switch 1404 with the structure can be connected with the battery pack 18 through the connecting wire so as to control the connection state of the battery pack 18 and the motor 10.

The electromagnetic control mechanism 19 comprises a control wire 1901, one end of the control wire 1901 is connected with a control wire mounting seat 1902, the other end of the control wire mounting seat 1902 is fixed on the sliding plate main body 601 through a thread, a through hole corresponding to the position of the control wire mounting seat 1902 is formed in the outer wall of the sliding plate main body 601, one end of the control wire mounting seat 1902, which is far away from the control wire 1901, is provided with a groove, a switch fixing rod 1903 is arranged in the groove of the control wire mounting seat 1902, a positioning spring 1904 is arranged outside the switch fixing rod 1903, a magnetic ring control switch 1906 is arranged at one end of the switch fixing rod 1903, which is far away from the control wire mounting seat 1902, the magnetic ring control switch 1906 is positioned inside the ball fixing seat 1905, a ball 1908 is attached to the lower end of the ball fixing seat 1905, an annular ball fixing plate 1907 is sleeved outside the sliding plate main body 601, when the sliding plate main body 601 is pressed above the material, the ball 1908 will be squeezed by the material, the ball 1908 will move towards the direction of the magnetic ring control switch 1906, so that the ball 1908 will push the ball fixing seat 1905 to the magnetic ring control switch 1906, the magnetic ring control switch 1906 will be triggered after being squeezed, so that the magnetic ring control switch 1906 will start the magnetic ring 406 through the switch fixing rod 1903 and the control line 1901, the magnetic ring 406 will be attracted with the support rod 5, fix the position of the tightening mechanism 4 outside the support rod 5, so as to limit the height of the device, avoid the situation that the cutting head 15 moves up and down when the device moves transversely, increase the stability of the transverse movement of the device, and when the device breaks away from the material, the positioning spring 1904 will push the ball fixing seat 1905 towards the ball fixing seat 1907, so that the ball fixing seat 1905 and the magnetic ring control switch 1906 will control the magnetic ring 406 to release the support rod 5, thus the cutting head 15 can be retracted inside the slide plate body 601 and the structure cooperates with the power-off switch 1404, increasing the safety of the device.

The working principle is as follows: when the hand-held lithium electric wood milling machine is used, firstly, the sliding plate 6 of the device is arranged at a proper position, then the positioning rod 1402 in the positioning rod fixing sleeve 1401 is moved, the extending length of the positioning rod 1402 is fixed through the positioning screw 1403, when the lower end of the positioning rod 1402 is pressed against the upper side of the sliding plate 6, the maximum distance of the downward movement of the motor fixing frame 12 is limited, so as to control the farthest distance of the movement of the cutting head 15, then the motor fixing frame 12 is driven by the handle 9 to move downwards, so that the lower end of the positioning rod 1402 is extruded on the upper end of the sliding plate 6 through the power-off switch 1404, then the control switch 8 is opened, then the motor 10 can simultaneously drive the air guide fan 17 and the cutting head 15 to rotate, the cutting head 15 can process materials, the air guide fan 17 can guide the air in the air guide box 7 out, so that the air guide tube 1 and the air guide tube 604 generate suction force, and thus the scraps of the cutting head 15 can be sucked into the mesh enclosure 603, the chips are accommodated by the mesh enclosure 603, meanwhile, the mesh enclosure 603 plays a role in filtering, the chips are prevented from entering the air guide box 7, meanwhile, the rotating block 403 can be rotated, the rotating block 403 can drive the transmission rod 404 and the extrusion block 405 to rotate, the extrusion block 405 can extrude the bulge of the fastening sleeve 402, so that the fastening sleeve 402 can clamp the supporting rod 5 tightly, the height of the motor fixing frame 12 is fixed, and the device can conveniently move, the steps are in a locking state, the fastening sleeve 402 can be opened during working, so that the positions of the motor 10 and the cutting head 15 can be freely operated, when the device is in an opening state of the fastening sleeve 402, the power-off switch 1404 cannot be extruded by the sliding plate 6 when the device accidentally topples, so that the device can perform power-off working, and the situation that the cutting head 15 continues to rotate to hurt a user when the device accidentally topples is avoided, increase the device's security, sleeve pipe 3 plays fixed spring 16's effect, spring 16's one end is fixed on bracing piece 5, bracing piece 5 can push up spring 16, spring 16's the other end can push up sleeve pipe 3, can control the height of tightening mechanism 4 and the fixed frame 12 of motor like this, avoid the fixed frame 12 of motor to move down, make cut head 15 can break away from the material automatically, increase the result of use of equipment, the fixed frame 12 top opening of motor plays the effect of holding group battery 18, make group battery 18 be in motor 10 position all around, make the device's focus be in the position at center, increase the device's stability, buckle 13 can block fixed lid 11 tops simultaneously, avoid fixed lid 11 to break away from fixed frame 12 of motor, thereby accomplish a series of works.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a hand-held type lithium electricity wood milling which characterized in that: the motor fixing device comprises a motor fixing frame (12), wherein a motor (10) is arranged on the inner side of the motor fixing frame (12), tightening mechanisms (4) are arranged on two sides of the motor fixing frame (12), a sleeve (3) is arranged above the tightening mechanisms (4), a supporting rod (5) is arranged below the tightening mechanisms (4), the outer wall of each tightening mechanism (4) is connected with an electromagnetic control mechanism (19), a sliding plate (6) is fixed at the lower end of each supporting rod (5), the motor (10) is a double-head motor, an air guide box (7) is arranged above the motor (10), a rotating shaft at one end of the motor (10) is connected with a cutting head (15) through a coupling, an air guide fan (17) is fixed at a rotating shaft at one end of the motor (10), and the air guide fan (17) is located inside the air guide box (7);

the sliding plate (6) comprises a sliding plate main body (601), a cutting head mounting hole (602) corresponding to the cutting head (15) in position is formed in the center of the sliding plate main body (601), air guide channels (604) distributed annularly are formed in the inner wall of the sliding plate main body (601), a mesh enclosure (603) is arranged below the cutting head mounting hole (602) of the sliding plate main body (601), and through holes are formed in the upper portion and the lower portion of the mesh enclosure (603);

tightening mechanism (4) is including tightening shell (401), tighten the inside cavity form that is of shell (401), tighten the inside of shell (401) and be provided with adapter sleeve (402), the outer wall that tightens shell (401) is provided with handle (9), the outer wall that tightens shell (401) rotates and is provided with transfer line (404), the one end of transfer line (404) is fixed with extrusion piece (405), the transfer line (404) other end is provided with turning block (403), and adapter sleeve (402) cover is established in the outside of bracing piece (5), one side that is close to transfer line (404) of adapter sleeve (402) is the bulge form, the incision has been seted up in the arch of adapter sleeve (402), the inboard of adapter sleeve (402) is provided with annular absorption magnetic ring (406), the outside of turning block (403) is semi-circular, and turning block (403) top is in the arch of adapter sleeve (402).

2. The hand-held lithium electric wood milling machine according to claim 1, characterized in that: a spring (16) is arranged in the sleeve (3), one end of the spring (16) is fixed on the inner wall of the sleeve (3), and the other end of the spring (16) is fixed at one end of the support rod (5).

3. The hand-held lithium electric wood milling machine according to claim 1, characterized in that: and a control switch (8) is arranged above the handle (9), and the control switch (8) is connected with the motor (10) and the battery pack (18) through electric wires.

4. The hand-held lithium electric wood milling machine according to claim 1, characterized in that: the lower part of the air guide box (7) is provided with a through hole, the outer wall of the air guide box (7) is provided with an air guide pipe (1), the other end of the air guide pipe (1) is fixed on the sliding plate main body (601), and the other end of the air guide pipe (1) is communicated with the inside of the air guide pipe (604).

5. The hand-held lithium electric wood milling machine according to claim 1, characterized in that: annular opening has been seted up to the top of the fixed frame of motor (12), and the opening outside of the fixed frame of motor (12) is provided with fixed lid (11), and the below of fixed lid (11) is provided with group battery (18), and the outer wall of the fixed frame of motor (12) is provided with buckle (13) of symmetry form, and buckle (13) outer wall is provided with the arch of prismoid shape, and buckle (13) outer wall protruding card is at the outer wall of fixed lid (11).

6. The hand-held lithium electric wood milling machine according to claim 5, wherein: one side of the fixed cover (11) close to the air duct (1) is in an opening shape, and the external shape of the fixed cover (11) is matched with the external shape of the motor fixed frame (12).

7. The hand-held lithium electric wood milling machine according to claim 1, characterized in that: the positioning device is characterized by further comprising a positioning mechanism (14), wherein the positioning mechanism (14) comprises a positioning rod fixing sleeve (1401), a through hole is formed in the center of the positioning rod fixing sleeve (1401), a positioning rod (1402) is arranged in the through hole in the center of the positioning rod fixing sleeve (1401), a threaded hole is formed in the outer wall of the positioning rod fixing sleeve (1401), a positioning screw (1403) is arranged in the threaded hole in the outer wall of the positioning rod fixing sleeve (1401), a groove is formed in the lower end of the positioning rod fixing sleeve (1401), and a power-off switch (1404) is arranged in the groove in the lower end of the positioning rod fixing sleeve (1401).

8. The hand-held lithium electric wood milling machine according to claim 7, wherein: the upper end of the power-off switch (1404) is provided with a connecting wire, and the connecting wire penetrates through the positioning rod (1402) to be connected with the battery pack (18).

9. The hand-held lithium electric wood milling machine according to claim 7, wherein: the electromagnetic control mechanism (19) comprises a control line (1901), one end of the control line (1901) is connected with a control line mounting seat (1902), the other end of the control line mounting seat (1902) is fixed on the sliding plate main body (601) through threads, a through hole corresponding to the position of the control line mounting seat (1902) is formed in the outer wall of the sliding plate main body (601), a groove is formed in one end, away from the control line (1901), of the control line mounting seat (1902, a switch fixing rod (1903) is arranged in the groove of the control line mounting seat (1902), a positioning spring (1904) is arranged outside the switch fixing rod (1903), a magnetic ring control switch (1906) is arranged at one end, away from the control line mounting seat (1902), of the magnetic ring control switch (1906) is located on the inner side of a ball fixing seat (1905), and a ball (1908) is attached to the lower end of the ball fixing seat (1905), an annular ball fixing piece (1907) is sleeved outside the ball (1908), and the ball fixing piece (1907) is fixed on the inner side of the through hole of the sliding plate main body (601).