CN210189447U

CN210189447U - Sapphire inner spherical surface grinding diamond grinding wheel

Info

Publication number: CN210189447U
Application number: CN201920988952.7U
Authority: CN
Inventors: Zhenyu Zhang; 张振宇; longxing Liao; 廖龙兴
Original assignee: Jiangsu Yuruishi High End Intelligent Equipment Technology Co Ltd
Current assignee: Jiangsu Yuruishi High End Intelligent Equipment Technology Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-03-27
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses a sphere abrasive machining diamond-impregnated wheel in sapphire, including handle of a knife, base member and grinding portion, the bottom terminal surface of handle of a knife is provided with a plurality of screw holes, the base member is the bowl shape of indent, and it has the through-hole that corresponds with the screw hole to distribute on the terminal surface lateral wall of base member, wears to be equipped with the screw in the through-hole, and the tip of screw passes through the screw-thread fit cartridge in the threaded hole that corresponds, annular step groove has been seted up on the opening part circumference outer wall of base member, and annular step inslot intussuseption is filled and is formed annular grinding. The utility model has the advantages of reasonable design, grinding efficiency is high, grinding intensity is big, grinding rigidity is strong, the grinding precision is good and can install on numerical control machining center main shaft fast.

Description

Sapphire inner spherical surface grinding diamond grinding wheel

Technical Field

The utility model relates to a grinding tool technical field specifically is a sphere abrasive machining diamond-impregnated wheel in sapphire.

Background

Sapphire has good mechanical properties, high temperature resistance, thermal shock resistance, good light permeability and other excellent properties, so the sapphire is widely applied to infrared windows and optical fairings, such as air-to-air missile fairings.

Sapphire cowlings are special in use and their surface quality is particularly important. The precise polishing is the last process of processing the inner and outer spherical surfaces of the sapphire fairing generally, and aims to remove tool marks and residual materials on the surface in the cutting and grinding processes so as to obtain the fairing with higher profile precision and surface finish. At present, the process method aiming at the inner surface polishing of the sapphire fairing comprises the modes of jet polishing, magnetorheological polishing and the like, the polishing removal amount is very small, so that the allowance removal is required to be carried out as much as possible by the previous grinding or cutting process, and the sapphire inner spherical surface with good profile precision is processed. However, most of grinding wheels for grinding the inner surface of the sapphire fairing at present are cylindrical grinding head grinding wheels, the grinding removal amount is small, the rigidity of the grinding wheels is poor, the grinding precision is low, and the grinding wheels are difficult to be used for machining of a numerical control machining center.

In order to solve the problem, the application provides a grinding wheel for grinding the inner spherical surface of a sapphire fairing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sphere abrasive machining diamond-impregnated wheel in grinding efficiency height, grinding intensity are big, grinding rigidity is strong, the grinding precision is good and can install fast in the epaxial sapphire of numerical control machining center main shaft to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a sphere abrasive machining diamond grinding wheel in sapphire, includes handle of a knife, base member and grinding portion, the bottom terminal surface of handle of a knife is provided with a plurality of screw holes, the base member is the bowl shape of indent, and it has the through-hole that corresponds with the screw hole to distribute on the terminal surface lateral wall of base member, wears to be equipped with the screw in the through-hole, and the tip of screw passes through the screw-thread fit cartridge in the screwed hole that corresponds, annular step groove has been seted up on the opening part circumference outer wall of base member, and annular step inslot intussuseption forms annular grinding.

Preferably, the handle of a knife includes integrated into one piece's toper cartridge portion and installation round platform, and central screw hole has been seted up at the top terminal surface center of toper cartridge portion, has seted up on the outer wall of toper cartridge portion and installation round platform junction and has moved back the sword annular, has seted up on the circumference outer wall of installation round platform that the cross-section is trapezoidal annular mounting groove, still has seted up the installation keyway that link up annular mounting groove on the circumference outer wall of installation round platform, and the screw hole is seted up on the bottom terminal surface of installation round platform.

Preferably, the tool shank is a standard BT series tool shank.

Preferably, the outermost end of the grinding part is semicircular in cross section, the grinding part is a diamond micro powder grinding part, the bonding agent adopted in the grinding part is a metal bonding agent, and the particle size is W3.5-W20.

Preferably, the base body comprises an end face side wall, a conical surface side wall and a cylindrical surface side wall which are integrally formed, and the base body is of an equal-wall-thickness structure.

Preferably, a plurality of conical surface vent holes are distributed on the conical surface side wall, and a plurality of cylindrical surface vent holes are distributed on the cylindrical surface side wall.

Compared with the prior art, the beneficial effects of the utility model are that: the grinding wheel product is designed into a tool handle, a base body and a grinding part, and the tool handle adopts a standard BT series tool handle, so that the grinding wheel product is conveniently and quickly arranged on a main shaft of a numerical control machine; the base body is connected with the cutter handle and the grinding part, when the inner surfaces of the sapphire fairing with different sizes and specifications are ground, only the base body needs to be replaced and the grinding part is filled, so that the base body can improve the integral rigidity of the grinding wheel, reduce the consumption of each component of the grinding part and reduce the cost; the outermost end of the last grinding part is semicircular, so that the contact area during grinding can be increased, the grinding efficiency is improved, the grinding part adopts a diamond micro powder grinding part, the hardness is high, the grinding precision is good, and the self-sharpening performance is strong due to the adoption of a metal bonding agent.

Drawings

FIG. 1 is a schematic structural view of a diamond grinding wheel for grinding inner spherical surfaces of sapphire in accordance with example 1;

fig. 2 is a schematic structural diagram of an embodiment 2 of a diamond grinding wheel for grinding inner spherical surfaces of sapphire.

In the figure: 1-a knife handle, 11-a conical insertion part, 12-an installation round table, 13-a tool withdrawal ring groove, 14-an annular installation groove, 15-an installation key groove, 16-a threaded hole, 17-a central threaded hole, 2-a base body, 21-a conical side wall, 211-a conical vent hole, 22-a cylindrical side wall, 221-a cylindrical vent hole, 23-an annular step groove, 3-a grinding part and 4-a screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1, embodiment 1: the utility model provides a sphere abrasive machining diamond grinding wheel in sapphire, includes handle of a knife 1, base member 2 and grinding portion 3, the bottom terminal surface of handle of a knife 1 is provided with a plurality of screw holes 16, base member 2 is the bowl shape of indent, and it has the through-hole that corresponds with screw hole 16 to distribute on the terminal surface lateral wall of base member 2, wears to be equipped with screw 4 in the through-hole, and screw 4's tip passes through the screw-thread fit cartridge in the screw hole 16 that corresponds, annular step groove 23 has been seted up on the opening part circumference outer wall of base member 2, and annular step inslot 23 intussuseption is formed annular grinding portion 3.

The tool holder 1 comprises a conical insertion portion 11 and an installation circular table 12 which are integrally formed, a central screw hole 17 is formed in the center of the top end face of the conical insertion portion 11, a tool retracting ring groove 13 is formed in the outer wall of the joint of the conical insertion portion 11 and the installation circular table 12, an annular installation groove 14 with a trapezoidal cross section is formed in the circumferential outer wall of the installation circular table 12, an installation key groove 15 penetrating through the annular installation groove 14 is further formed in the circumferential outer wall of the installation circular table 12, and a threaded hole 16 is formed in the bottom end face of the installation circular table 12.

The knife handle 1 is a standard BT series knife handle. This example may be embodied as a BT30 series tool shank.

The section of the outermost end of the grinding part 3 is semicircular, the grinding part 3 adopts a diamond micro powder grinding part, the main component of the diamond micro powder grinding part is diamond differential, the hardness is high, and the grinding precision is good; the bonding agent adopted in the grinding part 3 is a metal bonding agent with the granularity of W3.5-W20. The particle size in this example may be specifically W10.

The base body 2 comprises an end face side wall, a conical surface side wall 21 and a cylindrical surface side wall 22 which are integrally formed, and the base body 2 adopts an equal wall thickness structure.

Please refer to fig. 2, example 2: the difference from embodiment 1 is that a plurality of conical vent holes 211 are distributed on the conical side wall 21, and a plurality of cylindrical vent holes 221 are distributed on the cylindrical side wall 22. The arrangement of the conical vent holes 211 and the cylindrical vent holes 221 reduces the overall loading of the base body 2 and is also beneficial to quick discharge of chips in the subsequent grinding process.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a sphere abrasive machining diamond grinding wheel in sapphire which characterized in that: including handle of a knife (1), base member (2) and grinding portion (3), the bottom terminal surface of handle of a knife (1) is provided with a plurality of screw holes (16), base member (2) are the bowl shape of indent, and it has the through-hole that corresponds with screw hole (16) to distribute on the terminal surface lateral wall of base member (2), wears to be equipped with screw (4) in the through-hole, and screw (4)'s tip passes through screw-thread fit cartridge in screw hole (16) that correspond, annular step groove (23) have been seted up on the opening part circumference outer wall of base member (2), and annular step groove (23) intussuseption forms annular grinding portion (3).

2. The diamond grinding wheel for grinding inner spherical surface of sapphire according to claim 1, wherein: the tool holder (1) comprises an integrally formed conical insertion part (11) and an installation circular table (12), a central screw hole (17) is formed in the center of the top end face of the conical insertion part (11), a tool retracting ring groove (13) is formed in the outer wall of the joint of the conical insertion part (11) and the installation circular table (12), a trapezoidal annular installation groove (14) with a cross section is formed in the outer wall of the circumference of the installation circular table (12), an installation key groove (15) penetrating through the annular installation groove (14) is further formed in the outer wall of the circumference of the installation circular table (12), and a threaded hole (16) is formed in the end face of the bottom of the installation circular table (12).

3. The diamond grinding wheel for grinding inner spherical surface of sapphire according to claim 2, wherein: the knife handle (1) adopts a standard BT series knife handle.

4. The diamond grinding wheel for grinding inner spherical surface of sapphire according to claim 1, wherein: the outermost end section of the grinding part (3) is semicircular, the grinding part (3) adopts a diamond micro powder grinding part, a bonding agent adopted in the grinding part (3) is a metal bonding agent, and the granularity is W3.5-W20.

5. The diamond grinding wheel for grinding inner spherical surface of sapphire according to claim 1, wherein: the base body (2) comprises an end face side wall, a conical surface side wall (21) and a cylindrical surface side wall (22) which are integrally formed, and the base body (2) adopts a structure with equal wall thickness.

6. The diamond grinding wheel for grinding inner spherical surface of sapphire according to claim 5, wherein: the conical surface side wall (21) is provided with a plurality of conical surface vent holes (211) in a distributed manner, and the cylindrical surface side wall (22) is provided with a plurality of cylindrical surface vent holes (221) in a distributed manner.