CN210879277U

CN210879277U - Pentagonal grinding disc

Info

Publication number: CN210879277U
Application number: CN201921631480.6U
Authority: CN
Inventors: 赵惠东
Original assignee: Suzhou Tonghui New Material Equipment Manufacturing Co ltd
Current assignee: Suzhou Tonghui New Material Equipment Manufacturing Co ltd
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-06-30
Anticipated expiration: 2029-09-28

Abstract

The utility model relates to a pentagon grinding disc, including flaky disk body, the central point of disk body puts and is provided with the main shaft connect the through-hole of taking the draw-in groove, the disk body includes central disc and five grinding muscle, and five grinding muscle evenly set up in the periphery of central disc along the hoop, and every axis of grinding the muscle all passes through the central point of central disc, and every length of grinding the junction of muscle and central disc is not less than the ten minutes of the diameter of central disc, and every axial extension length of grinding the muscle is not less than the radial half of central disc, and every axial extension length of grinding the muscle is not more than the radius of central disc. The disc design of the pentagonal structure greatly increases the effective grinding area, and through reasonable design of various parameters, the overall strength of the disc is ensured, each grinding rib in the disc is not easy to damage during grinding, the original arc-shaped through hole is omitted, the strength of the disc is further increased, and the service life of the disc is prolonged.

Description

Pentagonal grinding disc

[ technical field ] A method for producing a semiconductor device

The utility model relates to a grinding device's technical field, concretely relates to pentagon grinding disc.

[ background of the invention ]

The grinding equipment generally comprises a grinding cylinder, wherein a feeding hole and a discharging hole are formed in the grinding cylinder, a main shaft is arranged in the grinding cylinder, a plurality of grinding discs are sleeved on the main shaft, and the grinding discs and materials are collided and rubbed with each other to grind the materials through high-speed rotation of the main shaft. The structure of the existing grinding disc is shown in figure 2, and comprises a flaky disc body 2, a spindle connecting through hole 1 with a clamping groove is arranged at the central position of the disc body 2, the edge of the disc body 2 is of a triangular structure, and the corners are in smooth arc transition, and a plurality of arc through grooves 3 are arranged in the disc body 2. This grinding disc is at the during operation, and the edge through disk body 2 carries out collision friction with the material and realizes the grinding to the material to through arc through-hole 3's setting, when making the material pass in the arc through-hole 3, carry out collision friction with the perisporium of arc through-hole 3, also can realize the grinding to the material. The disadvantages of the abrasive disk are: when the disc body 2 rotates at a high speed along with the main shaft, materials can collide with the edge of the disc body 2 to be ground only when entering the effective grinding area 4 between the outermost edge of the disc body 2 and the innermost edge of the disc body 2, and due to the edge structure of the disc body 2, the effective grinding area of the grinding disc is small, and the grinding efficiency is influenced. In addition, the design of the arc-shaped through holes 3 can improve the grinding efficiency, but also affects the overall firmness of the grinding disk and the service life of the grinding disk.

[ Utility model ] content

In order to solve the above problems, an object of the present invention is to provide a pentagonal abrasive disc that can improve abrasive efficiency and improve service life.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the pentagonal grinding disc comprises a flaky disc body, wherein a main shaft connecting through hole with a clamping groove is formed in the central position of the disc body, the disc body comprises a central disc and five grinding ribs, the five grinding ribs are uniformly arranged on the periphery of the central disc along the annular direction, the central axis of each grinding rib passes through the central point of the central disc, the length of the joint of each grinding rib and the central disc is not less than one tenth of the diameter of the central disc, the axial extension length of each grinding rib is not less than one half of the radius of the central disc, and the axial extension length of each grinding rib is not greater than the radius of the central disc.

The utility model provides a pentagonal grinding disc further sets up to: each grinding rib is of a structure which is gradually narrowed from the center outwards, the outermost edge of each grinding rib is arc-shaped, and the length of the arc-shaped outermost edge of each grinding rib is not less than half of the length of the joint of each grinding rib and the central disk.

The utility model provides a pentagonal grinding disc further sets up to: the outermost edges of the five grinding ribs are positioned on the same circle which takes the circle center of the central disk as the circle center.

Compared with the prior art, the utility model discloses following beneficial effect has: the pentagonal grinding disc has the advantages that the effective grinding area is greatly increased through the disc design of the pentagonal structure, the overall strength of the disc is ensured through the reasonable design of all parameters, each grinding rib in the disc is not easy to damage during grinding, the original arc-shaped through hole is omitted, the strength of the disc is further increased, and the service life of the disc is prolonged.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic diagram of a conventional polishing pad.

In fig. 1: 1. the grinding device comprises a main shaft connecting through hole, 2, a central disk, 3, a grinding rib, 4, an effective grinding area, a, the length of a joint of the grinding rib and the central disk, b, the axial extension length of the grinding rib, and c, the arc of the outermost edge of the grinding rib.

In fig. 2: 1. main shaft connect through-hole, 2, disk body, 3, arc logical groove, 4, effective grinding area.

[ detailed description ] embodiments

The pentagonal abrasive disc of the present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1, the pentagonal grinding disc comprises a flaky disc body, a main shaft connecting through hole 1 with a clamping groove is arranged at the central position of the disc body, the disc body comprises a central disc 2 and five grinding ribs 3, the five grinding ribs 3 are uniformly arranged on the periphery of the central disc 2 along the annular direction, the central axis of each grinding rib 3 passes through the central point of the central disc 2, the length a of the joint of each grinding rib 3 and the central disc 2 is not less than one tenth of the diameter of the central disc 2, so that the reliable connection of the grinding ribs 3 and the central disc 2 is ensured, the grinding ribs 3 are not easy to damage, the axial extension length b of each grinding rib 3 is not less than one half of the radius of the central disc 2, and the axial extension length b of each grinding rib 3 is not more than the radius of the central disc 2. The design of the axial extension length b of the grinding rib 3 is not suitable for being too long and too short, the grinding rib is easy to break during grinding due to the too long length, and the effective grinding effect cannot be ensured due to the too short length.

Preferably, each grinding rib 3 is a structure gradually narrowing from the center to the outside, the outermost edge of each grinding rib 3 is an arc, and the outermost edges of the five grinding ribs 3 are located on the same circle with the center of the central disk 2 as the center of the circle. The length of the arc c of the outermost edge of each grinding rib 3 is not less than half of the length a of the joint of each grinding rib 3 and the central disc 2. The arc-shaped length c design of the outermost edge of the grinding rib 3 ensures the overall firmness of the grinding rib 3 and avoids damage to the grinding rib 3.

The pentagonal grinding disc has the advantages that the effective grinding area 4 is greatly increased through the disc design of the pentagonal structure, the overall strength of the disc is ensured through the reasonable design of all parameters, each grinding rib 3 in the disc is not easy to damage during grinding, the original arc-shaped through hole is omitted, the strength of the disc is further increased, and the service life of the disc is prolonged.

The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, and are not intended to limit the present invention; it should be noted that, for those skilled in the art, without departing from the inventive concept, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. Pentagonal grinding disc, including flaky disk body, the central point of disk body puts and is provided with the main shaft connecting through hole who takes the draw-in groove, its characterized in that: the disk body includes central disc and five grinding muscle, and five grinding muscle evenly set up in the periphery of central disc along the hoop, and every axis that grinds the muscle all passes through the central point of central disc, and the length of every junction that grinds the muscle and central disc is not less than the ten of the diameter of central disc, and the axial extension length of every grinding muscle is not less than the half of the radius of central disc, and the axial extension length of every grinding muscle is not more than the radius of central disc.

2. The pentagonal abrasive disc of claim 1, wherein: each grinding rib is of a structure which is gradually narrowed from the center outwards, the outermost edge of each grinding rib is arc-shaped, and the length of the arc-shaped outermost edge of each grinding rib is not less than half of the length of the joint of each grinding rib and the central disk.

3. The pentagonal abrasive disc of claim 2, wherein: the outermost edges of the five grinding ribs are positioned on the same circle which takes the circle center of the central disk as the circle center.