CN219292814U - Electric grinder - Google Patents

Abstract

The embodiment of the utility model relates to the technical field of engraving and polishing, and discloses an electric mill, which comprises an electric mill body and a blowing structure, wherein the electric mill body comprises a shell, a motor and a clamping head, the motor is arranged on the shell, an output shaft of the motor at least partially protrudes out of the shell, the clamping head is arranged on the output shaft, and the clamping head is used for clamping a drill bit; the air blowing structure comprises a mounting piece and at least two fan blades, wherein the mounting piece is detachably mounted at one end of the output shaft protruding out of the shell, the at least two fan blades are arranged on the side wall of the mounting piece, and the at least two fan blades are distributed along the circumferential direction of the mounting piece. Through the mode, dust generated during carving, drilling or polishing can be cleaned timely.

Description

Electric grinder

Technical Field

The embodiment of the utility model relates to the technical field of engraving and polishing, in particular to an electric grinder.

Background

When the electric grinder is used for carving, drilling or polishing the artware, a large amount of dust can be easily generated, if the dust is not cleaned timely, the sight of a user is easily blocked, the processing of the artware by the user is not facilitated, and defective products and even waste products are easily generated.

Disclosure of Invention

The technical problem to be solved by the embodiments of the present utility model is to provide an electric grinder, which can overcome or at least partially solve the above-mentioned problems.

In order to solve the technical problems, one technical scheme adopted by the embodiment of the utility model is as follows: the electric mill comprises an electric mill body and a blowing structure, wherein the electric mill body comprises a shell, a motor and a clamping head, the motor is mounted on the shell, an output shaft of the motor at least partially protrudes out of the shell, the clamping head is mounted on the output shaft, and the clamping head is used for clamping a drill bit; the air blowing structure comprises a mounting piece and at least two fan blades, wherein the mounting piece is detachably mounted at one end of the output shaft protruding out of the shell, the at least two fan blades are arranged on the side wall of the mounting piece, and the at least two fan blades are distributed along the circumferential direction of the mounting piece.

Optionally, the blowing structure further includes a safety sleeve, the safety sleeve surrounds the plurality of fan blades, and one ends of the plurality of fan blades, which are far away from the mounting, are connected with the safety sleeve.

Optionally, the blowing structure further comprises a collet nut, and the collet nut is fixed with the mounting piece; the output shaft is provided with external threads, and the collet nut is in threaded connection with the output shaft.

Optionally, the collet nut protrudes from an end of the mounting member facing away from the housing.

Optionally, a portion of the collet nut protruding from the mounting member is provided with a first clamping surface and a second clamping surface, the first and second clamping surfaces being parallel.

Optionally, the mounting and the collet nut are of unitary design.

Optionally, the clamping head includes a first clamping part and a second clamping part, one ends of the first clamping part and the second clamping part are both fixed on the output shaft, the first clamping part and the second clamping part are opposite, and the first surface of the first clamping part, which is away from the second clamping part, and/or the second surface of the second clamping part, which is away from the first clamping part, are arranged in an inclined manner; the one end that the chuck nut was kept away from the shell is provided with the hold-down hole, works as the chuck nut spiro union in the output shaft, first surface and second surface all with the inner wall butt in hold-down hole, when will the chuck nut is screwed up so that the chuck nut is towards being close to the direction motion of shell, under the effect of hold-down hole, first surface and second surface, first clamping part and second clamping part are close to each other, thereby realize with the drill bit presss from both sides tightly.

Optionally, the clamping head further includes a third clamping part and a fourth clamping part, one ends of the third clamping part and the fourth clamping part are both fixed in the output shaft, and the third clamping part is opposite to the fourth clamping part, and the third clamping part deviates from the third surface of the fourth clamping part and/or the fourth clamping part deviates from the fourth surface of the third clamping part and is inclined, when the collet nut is screwed down so that the collet nut moves towards a direction close to the shell, under the combined action of the pressing hole, the first surface, the second surface, the third surface and the fourth surface, the first clamping part and the second clamping part are close to each other, and the third clamping part and the fourth clamping part are close to each other, so that the drill bit is clamped.

Optionally, an anti-slip structure is provided at an end of the housing adjacent the mounting, the anti-slip structure being for grasping by a user.

Optionally, the anti-skid structure includes a plurality of anti-skid grooves evenly distributed along a circumference of the housing.

The embodiment of the utility model has the beneficial effects that: compared with the prior art, the embodiment of the utility model has the advantages that the plurality of fan blades are arranged on the side wall of the mounting piece, the mounting piece is arranged on the output shaft of the motor and protrudes out of one end of the shell, and when an electric mill is used for processing the artwork, the output shaft can drive the mounting piece and the fan blades to rotate, so that dust generated during processing can be blown away, and the risk that the dust blocks the sight of a user is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of an assembled configuration of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an explosion state of an embodiment of the present utility model;

FIG. 3 is a schematic view of a partial structure of an explosion state of an embodiment of the present utility model;

FIG. 4 is a schematic partial structure of an embodiment of the present utility model;

fig. 5 is a schematic structural view of a blowing structure in an embodiment of the present utility model.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," and the like as used in this specification, refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

In addition, the technical features mentioned in the different embodiments of the utility model described below can be combined with one another as long as they do not conflict with one another.

Referring to fig. 1 to 5, the electric grinder 100 includes: the electric grinder comprises an electric grinder body 1, a blowing structure 2 and a drill bit 3. The utility model discloses a handicraft, including electric grinder body 1, drill bit 3, structure 2 of blowing is installed in electric grinder body 1, drill bit 3 demountable installation in electric grinder body 1, drill bit 3 is used for carrying out operations such as sculpture, drilling or polishing to the handicraft, structure 2 of blowing is used for blowing away the dust bits that produce when sculpture, drilling or polishing to avoid these dust bits to shelter from user's sight and influence the machining precision of user to the handicraft.

For the electric grinder body 1 described above, the electric grinder body 1 includes a housing 11, a motor 12, and a clamping head 13. The motor 12 is mounted on the housing 11, and an output shaft 121 of the motor 12 at least partially protrudes from the housing 11, the clamping head 13 is mounted on the output shaft 121, and the clamping head 13 is used for clamping the drill bit 3. The air blowing structure 2 is mounted on the output shaft 121, so that the air blowing structure 2 can rotate along with the output shaft 121 when the output shaft 121 rotates.

The motor 12 may be a dc motor or an ac motor.

For the above-described clamping head 13, the clamping head 13 includes a first clamping portion 131, a second clamping portion 132, a third clamping portion 133, and a fourth clamping portion 134. One end of the first clamping portion 131, one end of the second clamping portion 132, one end of the third clamping portion 133, and one end of the fourth clamping portion 134 are all fixed to the output shaft 121. The first clamping part 131 and the second clamping part 132 are opposite, and the first surface 1311 of the first clamping part 131 facing away from the second clamping part 132 and/or the second surface 1321 of the second clamping part 132 facing away from the first clamping part 131 are arranged in an inclined manner, and the first clamping part 131 and the second clamping part 132 are jointly used for clamping the drill bit 3. The third clamping portion 133 and the fourth clamping portion 134 are opposite, and the third clamping portion 133 and/or the fourth clamping portion 134 are/is inclined away from the third surface 1331 of the fourth clamping portion 134 and away from the fourth surface 1341 of the third clamping portion 133, and the third clamping portion 133 and the fourth clamping portion 134 are also used together for clamping the drill bit 3.

For the above-mentioned blowing structure 2, the blowing structure 2 includes a mounting member 21, a safety sleeve 22, a collet nut 23, and at least two fan blades 24. The at least two fan blades 24 are disposed on the side wall of the mounting member 21, and the at least two fan blades 24 are distributed along the circumferential direction of the mounting member 21. The safety rotary sleeve 22 surrounds the plurality of fan blades 24, and one ends of the plurality of fan blades 24 away from the mounting piece 21 are connected with the safety rotary sleeve 22, and the safety rotary sleeve 22 is in a circular ring shape, so that the at least two fan blades 24 can be prevented from scratching a user in the rotating process, and the safety of the electric grinder 100 is improved. The collet nut 23 is embedded in the mounting member 21 such that the collet nut 23 is fixed to the mounting member 21. The output shaft 121 is provided with an external thread 1211, and the collet nut 23 is screwed to the output shaft 121 to fix the blowing structure 2 to the output shaft 121.

In some embodiments, the collet nut 23 protrudes from an end of the mounting member 21 facing away from the housing 11, a first clamping surface 231 and a second clamping surface 232 are further disposed on a portion of the collet nut 23 protruding from the mounting member 21, and the first clamping surface 231 and the second clamping surface 232 are parallel, and the first clamping surface 231 and the second clamping surface 232 are used for clamping by a user using a wrench or the like, so as to facilitate screwing the collet nut 23 onto the output shaft 121 or detaching the collet nut 23 from the output shaft 121.

In some embodiments, the mounting 21 and the collet nut 23 are of unitary design.

For the collet nut 23 described above, the collet nut 23 is further provided with a pressing hole 233, the diameter of the pressing hole 233 is smaller than the nominal diameter of the screw groove 234 of the collet nut 23, and the nominal diameter of the screw groove 234 of the collet nut 23 is larger than the maximum diameter of the clamping head 13, so that the clamping head 13 can freely pass through the screw groove 234. When the screw-coupling of the clamping head 13 to the output shaft 121 is performed, the first surface 1311, the second surface 1321, the third surface 1331 and the fourth surface 1341 are abutted against the inner wall of the pressing hole 233, and when the collet nut 23 is continuously tightened to move the collet nut 23 in a direction approaching to the housing 11, the first clamping portion 131 and the second clamping portion are close to each other under the action of the pressing hole 233, the first surface 1311, the second surface 1321, the third surface 1331 and the fourth surface 1341, and the third clamping portion 133 and the fourth clamping portion 134 are close to each other, so that the drill 3 is clamped to rotate along with the output shaft 121, so that the drill 3 performs operations such as engraving, drilling or polishing on an artwork. When the drill 3 needs to be removed, as long as the collet nut 23 is unscrewed, the collet nut 23 moves in a direction away from the housing 11, the pressing hole 233 may be gradually separated from the first surface 1311, the second surface 1321, the third surface 1331, and the fourth surface 1341, so that the first clamping portion 131 and the second clamping portion 132 are away from each other, and the third clamping portion 133 and the fourth clamping portion 134 are away from each other, thereby canceling the clamping of the drill 3.

For the housing 11 described above, the housing 11 is provided with an opening 11 and an anti-slip structure 112. The motor 12 is mounted in the housing 11, and an output shaft 121 of the motor 12 protrudes at least partially out of the opening 11, so as to mount the blowing structure 2 to the output shaft 121. The anti-slip structure 112 is disposed at an end of the housing 11 near the mounting member 21, and the anti-slip structure 112 is used for a user to grasp, so as to reduce the risk of slipping hands when the user uses the electric grinder 100.

Specifically, the anti-slip structure 112 includes a plurality of anti-slip grooves 1121, and the plurality of anti-slip grooves 1121 are uniformly distributed along the circumferential direction of the housing 11. It should be noted that the wall surfaces of the anti-slip grooves 1121 are arc-shaped and cooperate with human fingers to improve the comfort of the user when gripping the electric grinder 100.

In the embodiment of the utility model, the plurality of fan blades 24 are arranged on the side wall of the mounting piece 21, and the mounting piece 21 is arranged on the output shaft 121 of the motor 12 to protrude out of one end of the shell 11, so that when the electric grinder 100 is used for processing the artwork, the output shaft 121 drives the mounting piece 21 and the fan blades 24 to rotate, and dust generated during processing can be blown away, thereby being beneficial to reducing the risk of blocking the sight of a user by dust.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (10)

1. An electric mill, comprising:

the electric grinder comprises an electric grinder body, a grinding head and a grinding head, wherein the electric grinder body comprises a shell, a motor and a clamping head, the motor is installed on the shell, an output shaft of the motor at least partially protrudes out of the shell, the clamping head is installed on the output shaft, and the clamping head is used for clamping a drill bit;

the air blowing structure comprises a mounting piece and at least two fan blades, wherein the mounting piece is detachably mounted at one end of the output shaft protruding out of the shell, the at least two fan blades are arranged on the side wall of the mounting piece, and the at least two fan blades are distributed along the circumferential direction of the mounting piece.

2. An electric mill according to claim 1, characterized in that,

the blowing structure further comprises a safety rotary sleeve, the safety rotary sleeve surrounds the fan blades, and one ends, far away from the mounting piece, of the fan blades are connected with the safety rotary sleeve.

3. An electric mill according to claim 1, characterized in that,

the blowing structure further comprises a chuck nut, and the chuck nut is fixed with the mounting piece;

the output shaft is provided with external threads, and the collet nut is in threaded connection with the output shaft.

4. An electric mill according to claim 3, characterized in that,

the collet nut protrudes from an end of the mounting member facing away from the housing.

5. The electric grinder as set forth in claim 4, wherein,

the part of the chuck nut protruding out of the mounting piece is provided with a first clamping surface and a second clamping surface, and the first clamping surface and the second clamping surface are parallel.

6. Electric mill according to any of claims 3-5, characterized in that,

the mounting piece and the chuck nut are integrally designed.

7. An electric mill according to claim 3, characterized in that,

the clamping head comprises a first clamping part and a second clamping part, one ends of the first clamping part and the second clamping part are fixed on the output shaft, the first clamping part is opposite to the second clamping part, and the first surface of the first clamping part, which is away from the second clamping part, and/or the second surface of the second clamping part, which is away from the first clamping part, are arranged in an inclined manner;

the one end that the chuck nut was kept away from the shell is provided with the hold-down hole, works as the chuck nut spiro union in the output shaft, first surface and second surface all with the inner wall butt in hold-down hole, when will the chuck nut is screwed up so that the chuck nut is towards being close to the direction motion of shell, under the effect of hold-down hole, first surface and second surface, first clamping part and second clamping part are close to each other, thereby realize with the drill bit presss from both sides tightly.

8. An electric mill according to claim 7, characterized in that,

the clamping head further comprises a third clamping part and a fourth clamping part, one ends of the third clamping part and the fourth clamping part are fixed on the output shaft, the third clamping part is opposite to the fourth clamping part, the third clamping part is away from the third surface of the fourth clamping part and/or the fourth clamping part is away from the fourth surface of the third clamping part, the clamping head nut is obliquely arranged, and when the clamping head nut is screwed down to enable the clamping head nut to move towards the direction close to the shell, the first clamping part and the second clamping part are close to each other under the action of the pressing hole, the first surface, the second surface, the third surface and the fourth surface, and the third clamping part and the fourth clamping part are close to each other, so that the drill bit is clamped.

9. An electric mill according to claim 1, characterized in that,

an anti-slip structure is arranged at one end of the shell, which is close to the mounting piece, and the anti-slip structure is used for a user to grasp.

10. An electric mill according to claim 9, characterized in that,

the anti-skid structure comprises a plurality of anti-skid grooves which are uniformly distributed along the circumference of the shell.

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