CN210160986U

CN210160986U - Axis assembly of polishing cloth wheel

Info

Publication number: CN210160986U
Application number: CN201920483175.0U
Authority: CN
Inventors: 杨学海
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-03-20
Anticipated expiration: 2029-04-10

Abstract

An axis assembly of a polishing cloth wheel comprises the cloth wheel, a plastic part and a metal part, wherein the cloth wheel and the plastic part are arranged into a whole through an injection process, the metal part is sleeved in a through hole of the plastic part through injection or die-casting, and one side of the metal part is also provided with an assembling hole for fixing a rotating shaft; the plastic part is provided with an injection port for injecting glue, and the plastic part and the cloth wheel are mutually bonded through the glue; a plurality of depressions are uniformly distributed on one side of the plastic part and are arranged around the periphery of the through hole. The utility model discloses a set cloth wheel and working of plastics, metalwork into a whole each other in the axle center subassembly of polishing cloth wheel, reduce the required spare part in the axle center subassembly of polishing cloth wheel, both reduction in production cost still reduces the loaded down with trivial details step of assembly, improves assembly structure.

Description

Axis assembly of polishing cloth wheel

Technical Field

The utility model relates to a cloth wheel specifically is an axle center subassembly of polishing cloth wheel.

Background

Referring to fig. 7, a conventional polishing cloth wheel has a hub assembly and a plastic member assembled with each other, and the hub assembly includes a fixing ring 4, an assembling ring 5, and an assembling portion 6; the number of parts is large, and the assembly steps are complicated.

Chinese patent publication No. CN207058378U at 2018.03.02 discloses a polishing cloth wheel mechanism, comprising: the cloth wheel unit, the inner pressure plate, the outer pressure plate and the central sleeve; the cloth wheel unit is formed by overlapping a plurality of cloth pieces, and a wheel axle hole is arranged in the middle of the cloth wheel unit; each cloth piece consists of a cloth piece body and a plurality of sewing threads which are arranged around the axle hole and have the same interval, and a plurality of positioning holes are uniformly arranged on each cloth piece around the axle hole; a dynamic balance fixing ring is attached in the shaft wheel hole; a glue tape is arranged between the dynamic balance fixing ring and the positioning hole; the cloth wheel unit is provided with an inner pressure plate and an outer pressure plate on two sides for pressing and fixing, the inner pressure plate is combined with a positioning hole of the cloth wheel unit, and a center sleeve is arranged between the cloth wheel unit and the inner pressure plate. See paragraph 26 of this patent document: the inner pressure disc comprises an inner pressure disc main body, an inner disc shaft, a plurality of positioning pins and a plurality of first annular ribs; the positioning pin and the first annular rib are arranged around the periphery of the inner disc shaft; the inner disc shaft is of a frustum structure, and a first shaft hole penetrates through the middle of the inner disc shaft. When the inner pressing disc is combined with the cloth wheel unit, the positioning pin is matched with the positioning hole 13, and the inner disc shaft is positioned in the wheel shaft hole. The arrangement structure of the inner pressure plate is complex. And thus, is in need of further improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure is reasonable, and the cost of manufacture is lower, and the installation is nimble swift, effectively improves the polishing cloth wheel axle center subassembly of polishing cloth wheel axle center subassembly assembly efficiency to overcome the weak point among the prior art.

According to the axle center subassembly of polishing cloth wheel of this purpose design, including cloth wheel and working of plastics, metalwork, cloth wheel and working of plastics set up to a whole through injection technology, and the metalwork is established in the through-hole of working of plastics through injection or die-casting cover, one side of metalwork still is provided with the pilot hole that is used for fixed rotating shaft, cancels traditional metalwork and the mutual structure of assembling of working of plastics, reduces the part that the metalwork needs to set up.

The plastic part is provided with an injection port for injecting glue, and the plastic part and the cloth wheel are mutually bonded through the glue.

A plurality of depressions are uniformly distributed on one side of the plastic part to reduce the material consumption of the plastic part and reduce the production cost, and the depressions are arranged around the periphery of the through hole.

A metal piece is sleeved in the through hole and comprises a cylinder body and an outer ring, the cylinder body is sleeved in the through hole, the cylinder body and the outer ring are coaxial, and the outer ring is positioned outside the through hole and is mutually attached to the other side of the plastic piece; alternatively, a gap is left between the outer ring and the other side of the plastic part. The metal piece is provided with a cylinder and an outer ring through stamping and stretching.

A plurality of ribs are uniformly distributed at one end of the column body and clamped in the through hole, so that the metal part is prevented from rotating in the plastic part in the polishing process.

More than one annular groove is arranged on the side face of the cylinder body, each annular groove is arranged at intervals, so that more than one annular boss is formed on the outer side face of the cylinder body, and the annular bosses are clamped in the through holes to prevent the metal part from rotating or moving back and forth in the plastic part in the polishing process.

The surface of the outer ring is of a solid structure; or, the surface of the outer ring is uniformly provided with a plurality of grooves.

And one side of the outer ring is provided with an assembling hole for fixing the rotating shaft. The outer ring and the column body are respectively provided with a small hole, the small holes penetrate through the central positions of the outer ring and the column body, and the assembling holes are communicated with the small holes.

The utility model discloses a set cloth wheel and working of plastics, metalwork into a whole each other in the axle center subassembly of polishing cloth wheel, reduce the required spare part in the axle center subassembly of polishing cloth wheel, both reduction in production cost still reduces the loaded down with trivial details step of assembly, improves assembly structure.

Drawings

Fig. 1 is a schematic perspective view of a cloth polishing wheel according to a first embodiment of the present invention.

FIG. 2 is a schematic perspective view of another embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a polishing cloth wheel according to a first embodiment of the present invention.

Fig. 4 is a schematic outer ring perspective structure of a metal member according to a first embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a metal member according to a second embodiment of the present invention.

Fig. 6 is a schematic structural view of a metal member according to a third embodiment of the present invention.

Fig. 7 is a schematic structural view of a cloth polishing wheel according to a third embodiment of the present invention.

In the figure, 1 is a cloth wheel, 2 is a plastic piece, 2.1 is a through hole, 2.2 is a recess, 3 is a metal piece, 3.1 is an assembly hole, 3.2 is a cylinder, 3.21 is a convex rib, 3.22 is an annular groove, 3.23 is an annular boss, 3.3 is an outer ring, 3.31 is a groove, 4 is a fixing ring, 5 is an assembly ring, and 6 is an assembly part.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

First embodiment

Referring to fig. 1-4, an axis assembly of a polishing cloth wheel comprises a cloth wheel 1, a plastic part 2 of the cloth wheel, and a metal part 3, wherein the cloth wheel 1 and the plastic part 2 are integrated through an injection process, the metal part 3 is sleeved in a through hole 2.1 of the plastic part 2 through injection or die-casting, and one side of the metal part 3 is further provided with an assembly hole 3.1 for fixing a rotating shaft. The plastic part 2 is sleeved in the polishing cloth wheel 1.

Further, the plastic part 2 is provided with an injection port for injecting glue, and the plastic part 2 and the cloth wheel 1 are bonded to each other by the glue.

Furthermore, a plurality of depressions 2.2 are uniformly distributed on one side of the plastic part 2, and the depressions 2.2 are arranged around the periphery of the through hole 2.1.

Furthermore, a metal piece 3 is sleeved in the through hole 2.1, the metal piece 3 comprises a cylinder 3.2 and an outer ring 3.3, the cylinder 3.2 is sleeved in the through hole 2.1, the cylinder 3.2 and the outer ring are coaxial, and the outer ring 3.3 is positioned at the outer side of the through hole 2.1 and is mutually attached to the other side of the plastic piece 2; alternatively, a gap is left between the outer ring 3.3 and the other side of the plastic part 2.

Furthermore, the surface of the outer ring 3.3 is of a solid structure; or, a plurality of grooves 3.31 are uniformly distributed on the surface of the outer ring 3.3.

Further, one side of the outer ring 3.3 is provided with a mounting hole 3.1 for fixing the rotating shaft.

Second embodiment

Referring to fig. 5, a spindle assembly of a polishing cloth wheel differs from the first embodiment in that: one end of the cylinder 3.2 is evenly provided with a plurality of ribs 3.21, and the plurality of ribs 3.21 are clamped in the through holes 2.1.

Other parts not described are the same as those of the first embodiment, and are not described in detail here.

Third embodiment

Referring to fig. 6, a spindle assembly of a polishing cloth wheel differs from the first embodiment in that: more than one annular groove 3.22 is arranged on the side surface of the cylinder 3.2, each annular groove 3.22 is arranged at intervals, so that more than one annular boss 3.23 is formed on the outer side surface of the cylinder 3.2, and the annular bosses 3.23 are clamped in the through holes 2.1.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An axis assembly of a polishing cloth wheel comprises a cloth wheel (1), a plastic part (2) of the cloth wheel and a metal part (3), and is characterized in that the cloth wheel (1) and the plastic part (2) are arranged into a whole through an injection process, the metal part (3) is sleeved in a through hole (2.1) of the plastic part (2) through injection or die-casting, and one side of the metal part (3) is also provided with an assembly hole (3.1) for fixing a rotating shaft;

the plastic part (2) is provided with an injection port for injecting glue, and the plastic part (2) and the cloth wheel (1) are mutually bonded through the glue.

2. The axial center component of the polishing cloth wheel according to claim 1, wherein a plurality of depressions (2.2) are uniformly distributed on one side of the plastic part (2), and the depressions (2.2) are circumferentially arranged on the periphery of the through hole (2.1).

3. The axial center component of the polishing cloth wheel according to claim 1, wherein the through hole (2.1) is internally sleeved with a metal piece (3), the metal piece (3) comprises a cylinder body (3.2) and an outer ring (3.3), the cylinder body (3.2) is sleeved in the through hole (2.1) and is coaxially arranged with each other, and the outer ring (3.3) is positioned at the outer side of the through hole (2.1) and is mutually attached to the other side of the plastic piece (2); or a gap is reserved between the outer ring (3.3) and the other side of the plastic part (2).

4. The axial center component of the polishing cloth wheel according to claim 3, characterized in that a plurality of convex ribs (3.21) are uniformly distributed at one end of the cylinder (3.2), and the convex ribs (3.21) are clamped in the through hole (2.1).

5. The axial center component of the polishing cloth wheel according to claim 3, characterized in that more than one annular groove (3.22) is arranged on the side surface of the cylinder body (3.2), each annular groove (3.22) is arranged at intervals, so that more than one annular boss (3.23) is formed on the outer side surface of the cylinder body (3.2), and the annular bosses (3.23) are clamped in the through holes (2.1).

6. Hub assembly for a polishing cloth wheel according to any one of claims 3 to 5, characterized in that the surface of the outer ring (3.3) is of solid construction; or a plurality of grooves (3.31) are uniformly distributed on the surface of the outer ring (3.3).

7. The axial center component of the polishing cloth wheel according to claim 6, wherein one side of the outer ring (3.3) is provided with a mounting hole (3.1) for fixing the rotating shaft.