CN210616182U

CN210616182U - Sintered diamond grinding head

Info

Publication number: CN210616182U
Application number: CN201920624688.9U
Authority: CN
Inventors: 咸志鹏
Original assignee: Jiangmen Zhongdao Precision Technology Co ltd
Current assignee: Jiangmen Zhongdao Precision Technology Co ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-05-26
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a sintering diamond bistrique, including base rod, setting at the grinding portion of base rod tip, the grinding portion is sintering diamond layer, and the cross recess has been seted up to the tip of grinding portion, and the center setting of cross recess is provided with the transition fillet at the center of grinding portion, the tip edge of grinding portion. The sintered diamond grinding head of the utility model can conveniently contain grinding scraps by arranging the cross groove at the end part of the grinding part, does not influence the processing quality, and the cross groove communicates the center of the grinding part with the radial outer surface, and conveniently discharges the grinding scraps through the center and the outer end of the cross groove, thereby avoiding the scraps from being accumulated; in addition, the center of the cross groove is arranged at the center of the grinding part, so that the product is prevented from contacting the center of the grinding head, and the grinding head is prevented from being crushed; moreover, still through setting up the transition fillet at the tip edge of grinding portion, both reduced the risk that grinding portion broke the limit, made things convenient for the grinding portion to cut into the inside processing of product upper hole.

Description

Sintered diamond grinding head

Technical Field

The utility model relates to a grinding tool especially relates to a sintering diamond bistrique.

Background

In the prior art, with the development of technology, the 5G era is coming, and then the material of the mobile phone shell is also changed substantially. At present, the most ideal is to use ceramic, and the ceramic surface is ground by using a grinding head to obtain good appearance when the ceramic is processed.

However, the existing grinding head has the disadvantages of fast abrasion, short service life and difficult control of grinding quality.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving above-mentioned technical problem, provide a sintering diamond bistrique, can improve the life-span of bistrique, ensure to grind the quality.

The utility model discloses a realize through following technical scheme:

the utility model provides a sintered diamond grinding head, includes the base rod, sets up the grinding portion at the base rod tip, and the grinding portion is sintered diamond layer, and the cross recess has been seted up to the tip of grinding portion, and the center setting of cross recess is at the center of grinding portion, and the tip edge of grinding portion is provided with the transition fillet.

Preferably, the diameter of the base rod is 10mm, and the diameter of the grinding part is 12 mm.

Preferably, the length of the base rod is 30mm, and the length of the grinding part is 10 mm.

Preferably, the radius of the transition fillet is 1 mm.

Preferably, the width of the cross groove is 1.5mm, and the depth of the cross groove is 2 mm.

Preferably, the center of the cross-shaped recess forms a cylindrical recess, and the cross-shaped recess divides the end of the grinding portion into four fan-shaped regions.

Preferably, the diameter of the grinding part is 12mm, and the diameter of the cylindrical recess is 6 mm.

Preferably, the radial outer surface of the grinding part is plated with sand grains, and the size of the sand grains is 150.

The beneficial effects are that: compared with the prior art, the sintered diamond grinding head of the utility model has the advantages that the end part of the grinding part is provided with the cross groove, so that grinding scraps can be conveniently accommodated without affecting the processing quality, the center of the grinding part is communicated with the radial outer surface by the cross groove, the grinding scraps are conveniently discharged from the center and the outer end of the cross groove, and the scraps are prevented from being accumulated; in addition, the center of the cross groove is arranged at the center of the grinding part, so that the product is prevented from contacting the center of the grinding head, the grinding head is prevented from being crushed, and the service life is prolonged; in addition, the grinding part is made of sintered diamond and can be used after being ground and trimmed, so that the utilization rate is improved; moreover, still through setting up the transition fillet at the tip edge of grinding portion, both reduced the risk that grinding portion broke the limit, made things convenient for the grinding portion to cut into the inside processing of product upper hole.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic structural view of a sintered diamond grinding head according to the present invention;

fig. 2 is another side view of the sintered diamond grinding tip of fig. 1.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

As shown in fig. 1, a sintered diamond grinding head comprises a base rod 1 and a grinding part 2 arranged at the end of the base rod 1, wherein the grinding part 2 is a sintered diamond layer, the radial outer surface of the grinding part 2 is plated with gravel with the model number of 105, so that ceramic materials can be conveniently processed.

For a particular parameter set, in some embodiments, the base shaft 1 may be 10mm in diameter and the grinding section 2 may be 12mm in diameter. The diameter of the base rod 1 is smaller than that of the grinding part 2, so that the base rod 1 can keep a distance from the product when the grinding part 2 contacts the product, and the base rod 1 is prevented from being worn.

In some embodiments, the base shaft 1 may have a length of 30mm and the grinding part 2 may have a length of 10 mm. The length of the grinding part 2 is shorter, and the difference between the length of the grinding part and the length of the base rod 1 is less, so that the deflection of the grinding head can be reduced, and on the other hand, the grinding part 2 can be ensured to be in full contact with a surface to be ground, and eccentric wear is avoided.

In order to conveniently remove the scraps generated by grinding and further ensure the grinding quality, the end part of the grinding part 2 is provided with a cross groove 4, the center of the cross groove 4 is arranged at the center of the grinding part 2, and the end edge of the grinding part 2 is provided with a transition fillet 3.

In the embodiment, the cross groove 4 is formed in the end part of the grinding part 2, so that grinding scraps can be conveniently accommodated without affecting the processing quality, the center of the grinding part 2 is communicated with the radial outer surface through the cross groove 4, the grinding scraps are conveniently discharged through the center and the outer end of the cross groove 4, and the scraps are prevented from being accumulated; in addition, the center of the cross groove 4 is arranged at the center of the grinding part 2, so that the product is prevented from contacting the center of the grinding head, the grinding head is prevented from being crushed, and the service life is prolonged; in addition, the grinding part 2 is made of sintered diamond and can be used after being ground and trimmed, so that the utilization rate is improved; moreover, still through setting up transition fillet 3 at the tip edge of grinding portion 2, both reduced the risk that grinding portion 2 broke the limit, made things convenient for grinding portion 2 to cut into the inside processing of product upper bore.

With regard to the arrangement of the transition fillets 3, in some embodiments, the radius of the transition fillets 3 can be made 1mm, thereby ensuring the desired effect of the design while avoiding excessive reduction of the grinding area of the grinding head.

With regard to the arrangement of the cross slots 4, in some embodiments, the width of the cross slots 4 may be 1.5mm and the depth of the cross slots 4 may be 2mm, so that not only can more debris be accommodated, but also the portions separated by the cross slots 4 can maintain sufficient strength.

Because the motion mode of the grinding head is rotation around the axis of the base rod 1, under the condition that the power of the grinding head is constant, the grinding force close to the center of the base rod 1 is large, and the grinding force at the center of the base rod 1 is small.

As shown in fig. 2, in order to reduce the difference in grinding force, a cylindrical recess may be formed in the center of the cross-shaped recess 4, and the cross-shaped recess 4 divides the end of the grinding part 2 into four fan-shaped regions, and of course, the center of the cross-shaped recess 4 forms a cylindrical recess, and the divided fan-shaped regions are prevented from having sharp corners and collapsing during the operation of the grinding head.

For a grinding head having a diameter of 12mm in the grinding portion 2, it is preferable that the diameter of the cylindrical recess portion be 6mm, so that the grinding force ratio inside and outside the sector region be 2:1 or less.

The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. The utility model provides a sintered diamond grinding head, its characterized in that includes base rod (1), sets up grinding portion (2) at base rod (1) tip, and grinding portion (2) are the sintered diamond layer, and cross recess (4) have been seted up to the tip of grinding portion (2), and the center of cross recess (4) sets up in the center of grinding portion (2), and the tip edge of grinding portion (2) is provided with transition fillet (3).

2. A sintered diamond grinding head according to claim 1, characterized in that the base shank (1) has a diameter of 10mm and the grinding portion (2) has a diameter of 12 mm.

3. A sintered diamond grinding head according to claim 1, characterized in that the base shaft (1) has a length of 30mm and the grinding portion (2) has a length of 10 mm.

4. A sintered diamond grinding head according to claim 1, characterized in that the radius of the transition rounded corner (3) is 1 mm.

5. A sintered diamond grinding head according to claim 1, characterized in that the width of the cross recess (4) is 1.5mm and the depth of the cross recess (4) is 2 mm.

6. A sintered diamond grinding head according to claim 1, characterized in that the center of the cross recess (4) forms a cylindrical recess, the cross recess (4) dividing the end of the grinding part (2) into four sectors.

7. A sintered diamond grinding head according to claim 6, characterized in that the diameter of the grinding portion (2) is 12mm and the diameter of the cylindrical recess is 6 mm.

8. A sintered diamond grinding head according to claim 1, characterised in that the radially outer surface of the grinding portion (2) is coated with grit of size 150.