CN218461815U

CN218461815U - Bench grinder

Info

Publication number: CN218461815U
Application number: CN202222725489.1U
Authority: CN
Inventors: 贺文忠
Original assignee: Qingdao Jinlichang Refrigeration Parts Co ltd
Current assignee: Qingdao Jinlichang Refrigeration Parts Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-02-10
Anticipated expiration: 2032-10-17

Abstract

The utility model discloses a bench grinder, which comprises a base, wherein a motor is connected on the base, a motor output shaft is connected with a motor shaft, a grinding wheel disc is arranged on the motor shaft, a protective shell is connected with a protective shell, a cover plate is connected on the protective shell, a positioning disc is connected on the motor shaft, positioning holes are uniformly arranged on the positioning disc, a central hole is arranged at the center of the grinding wheel disc, through holes are also uniformly arranged on the grinding wheel disc, a positioning unit is arranged on the cover plate, and one end of the positioning unit passes through the through hole and is clamped with the positioning holes; the utility model discloses, when changing the abrasive wheel dish, only need take off the apron, then will change the abrasive wheel dish of damage, then cover the apron, fix the abrasive wheel dish after changing through the positioning unit on the apron, install the apron through the screw at last can, the step is less, convenient operation.

Description

Bench grinder

Technical Field

The utility model belongs to the technical field of desk-top abrasive machine, specifically be a desk-top abrasive machine.

Background

According to a patent document with an authorization publication number CN215788942U, it discloses: through being provided with the movable cover, when the abrasive machine used, can upwards pull up the movable cover, and make the movable cover stop in the position of grinding preferred, at first can utilize the movable cover to block the region that need not use like this, so as to prevent that the staff accident and high-speed rotatory emery wheel contact, secondly the movable cover that stops in grinding preferred position can provide supporting platform for the staff, make the staff can use this platform to control the work piece for supporting and carry out the grinding, thereby improve the stability of staff's grinding, improve grinding precision, but there is following defect:

the grinding wheel disc is installed on the motor shaft and is located the inside of protective housing, when changing the grinding wheel disc, needs to be to protective housing and grinding wheel disc dismouting respectively, and the operation is comparatively loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a desk-top abrasive machine, the effectual emery wheel dish of having solved is installed on the motor shaft and is located the inside of protective housing, when changing the emery wheel dish, needs to be to protective housing and emery wheel dish dismouting respectively, the comparatively loaded down with trivial details problem of operation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a desk-top abrasive machine, includes the base, is connected with the motor on the base, and motor output shaft has the motor shaft, is provided with the abrasive wheel dish on the motor shaft, and the shell of motor is connected with the protective housing, is connected with the apron on the protective housing, be connected with the positioning disk on the motor shaft, evenly seted up the locating hole on the positioning disk, the centre bore has been seted up at the abrasive wheel dish center, still evenly seted up the through-hole on the abrasive wheel dish, is provided with the positioning unit on the apron, and positioning unit one end is passed through-hole and locating hole joint.

Preferably, the positioning unit comprises a plate body, one side, away from the cover plate, of the plate body is evenly connected with a positioning column, the positioning column penetrates through the through hole and then is clamped with the positioning hole, and one side, close to the cover plate, of the plate body is connected with a telescopic rotating piece.

Preferably, the telescopic rotating part comprises a connecting block connected with the plate body, a first rotating plate is connected to the connecting block, the first rotating plate is rotatably connected with a second rotating plate, a spring is arranged on one side, close to the cover plate, of the second rotating plate, the first rotating plate, the second rotating plate and the spring are located inside the cylinder, the first rotating plate and the second rotating plate are slidably connected with the cylinder, and the cylinder is connected with the cover plate.

Preferably, the first rotating plate and the second rotating plate are provided with second annular grooves on the sides close to each other, and second balls are uniformly arranged in a channel formed by the two second annular grooves.

Preferably, first ring channels are formed in one side, close to each other, of the protective shell and the positioning disc, and first balls are uniformly arranged in channels formed in the two first ring channels.

Preferably, mounting holes are formed in the protective shell and the cover plate, and the two mounting holes which are close to each other are connected through screws.

Compared with the prior art, the beneficial effects of the utility model are that:

when the grinding wheel disc is replaced, only the cover plate needs to be taken down, the damaged grinding wheel disc is replaced, then the cover plate is covered, the replaced grinding wheel disc is fixed through the positioning unit on the cover plate, and finally the cover plate is installed through the screw, so that the steps are few, and the operation is convenient.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a bench grinder of the present invention;

FIG. 2 is a schematic view of the installation structure of the grinding wheel disc of the present invention;

FIG. 3 is a schematic view of the positioning unit of the present invention;

fig. 4 is a schematic view of the installation structure of the protective shell of the present invention;

in the figure: 1. a base; 2. a motor; 201. a motor shaft; 3. a grinding wheel disc; 301. a central bore; 302. a through hole; 4. a protective shell; 401. positioning a plate; 402. positioning holes; 403. a first annular groove; 404. a first ball bearing; 5. a cover plate; 6. a positioning unit; 601. a positioning column; 602. a plate body; 603. connecting blocks; 604. a first rotating plate; 605. a second rotating plate; 606. a spring; 607. a cylinder; 608. a second annular groove; 609. a second ball.

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 some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is given by fig. 1-4, the utility model relates to a bench grinder, which comprises a base 1, a motor 2 is connected on the base 1, an output shaft of the motor 2 is connected with a motor shaft 201, a grinding wheel disc 3 is arranged on the motor shaft 201, a shell of the motor 2 is connected with a protective shell 4, a cover plate 5 is connected on the protective shell 4, furthermore, mounting holes are respectively arranged on the protective shell 4 and the cover plate 5, and two mounting holes which are close to each other are connected through screws; design like this, the output shaft of motor 2 drives the grinding wheel dish 3 rotation on the motor shaft 201, polishes the processing through grinding wheel dish 3 to the spare part, and protective housing 4 and apron 5 can block the piece that produces when polishing, avoid the piece to splash.

The motor shaft 201 is connected with a positioning disc 401, positioning holes 402 are uniformly formed in the positioning disc 401, a center hole 301 is formed in the center of the grinding wheel disc 3, through holes 302 are also uniformly formed in the grinding wheel disc 3, a positioning unit 6 is arranged on the cover plate 5, and one end of the positioning unit 6 penetrates through the through holes 302 to be clamped with the positioning holes 402;

with this arrangement, when the grinding wheel disc 3 is mounted, one end of the positioning unit 6 of the cover plate 5 passes through the through hole 302 and enters the positioning hole 402, so that the cover plate 5 can be mounted and the grinding wheel disc 3 can be mounted.

Specifically, the positioning unit 6 includes a plate body 602, positioning columns 601 are uniformly connected to one side of the plate body 602, which is far away from the cover plate 5, the positioning columns 601 are clamped with the positioning holes 402 after penetrating through the through holes 302, a telescopic rotating member is connected to one side of the plate body 602, which is close to the cover plate 5, the telescopic rotating member includes a connecting block 603 connected to the plate body 602, a first rotating plate 604 is connected to the connecting block 603, the first rotating plate 604 is rotatably connected to a second rotating plate 605, a spring 606 is arranged on one side of the second rotating plate 605, which is close to the cover plate 5, the first rotating plate 604, the second rotating plate 605 and the spring 606 are all located inside the cylinder 607, the first rotating plate 604 and the second rotating plate 605 are both slidably connected to the cylinder 607, and the cylinder 607 is connected to the cover plate 5;

by the design, the plate body 602 is tightly attached to the grinding wheel disc 3 under the action of the spring 606, so that the positioning column 601 enters the positioning hole 402 after passing through the through hole 302, and the stability is improved.

Further, a second annular groove 608 is formed in each of the sides, close to each other, of the first rotating plate 604 and the second rotating plate 605, and second balls 609 are uniformly arranged in a channel formed by the two second annular grooves 608; with this arrangement, the friction between first rotating plate 604 and second rotating plate 605 can be reduced by second balls 609, and the rotation of first rotating plate 604 and second rotating plate 605 can be made smooth.

Further, first annular grooves 403 are formed in the side, close to each other, of the protective shell 4 and the positioning disc 401, and first balls 404 are uniformly arranged in a channel formed in the two first annular grooves 403; by the design, the positioning disc 401 is supported by the first ball bearing 404, and the motor shaft 201 is not affected by the spring 606.

Claims

1. The utility model provides a desk-top abrasive machine, includes base (1), is connected with motor (2) on base (1), and motor (2) output shaft has motor shaft (201), is provided with abrasive disc (3) on motor shaft (201), and the shell of motor (2) is connected with protective housing (4), is connected with apron (5) on protective housing (4), its characterized in that, be connected with positioning disk (401) on motor shaft (201), evenly seted up locating hole (402) on positioning disk (401), centre bore (301) have been seted up at abrasive disc (3) center, still evenly seted up through-hole (302) on abrasive disc (3), be provided with positioning unit (6) on apron (5), through-hole (302) and locating hole (402) joint are passed to positioning unit (6) one end.

2. The bench grinder of claim 1, wherein: positioning unit (6) are including plate body (602), and one side that apron (5) were kept away from in plate body (602) evenly is connected with reference column (601), and through-hole (302) back and locating hole (402) joint are passed in reference column (601), and one side that plate body (602) are close to apron (5) is connected with flexible rotation piece.

3. The bench grinder of claim 2, wherein: the telescopic rotating piece comprises a connecting block (603) connected with a plate body (602), a first rotating plate (604) is connected to the connecting block (603), the first rotating plate (604) is rotatably connected with a second rotating plate (605), a spring (606) is arranged on one side, close to the cover plate (5), of the second rotating plate (605), the first rotating plate (604), the second rotating plate (605) and the spring (606) are located inside a cylinder (607), the first rotating plate (604) and the second rotating plate (605) are slidably connected with the cylinder (607), and the cylinder (607) is connected with the cover plate (5).

4. A bench grinder as claimed in claim 3, wherein: second annular grooves (608) are formed in the sides, close to each other, of the first rotating plate (604) and the second rotating plate (605), and second balls (609) are uniformly arranged in a channel formed by the two second annular grooves (608).

5. The bench grinder of claim 1, wherein: first ring channel (403) have all been seted up to one side that protective housing (4) and positioning disk (401) are close to each other, evenly are provided with first ball (404) in the passageway that forms in two first ring channel (403).

6. The bench grinder of claim 1, wherein: mounting holes are formed in the protective shell (4) and the cover plate (5), and the two mounting holes which are close to each other are connected through screws.