CN211220315U

CN211220315U - Split type diamond grinding wheel

Info

Publication number: CN211220315U
Application number: CN201921851231.8U
Authority: CN
Inventors: 罗智杰; 陈学才; 罗荣刚; 罗智机
Original assignee: Foshan Nanhai Jintaoxing Abrasives Co ltd
Current assignee: Foshan Nanhai Jintaoxing Abrasives Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-08-11
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a split type diamond grinding wheel, which comprises a mounting disc, an outer grinding block and an inner grinding block, wherein the outer grinding block and the inner grinding block are respectively provided with a first connecting part and a second connecting part; outer abrasive brick, interior abrasive brick all are cyclic annular, the top interval of outer abrasive brick is equipped with outer grinding tooth, outer chip groove of arranging, the top interval of interior abrasive brick is equipped with interior grinding tooth, interior chip groove, outer chip groove of arranging, interior chip groove of arranging communicates each other. The beneficial effects of the utility model are that, can remain mounting disc and interior abrasive brick, only change outer abrasive brick and can continue to use the split type diamond-impregnated wheel of this application, can save the cost to, the chip removal of interior chip groove is smooth and easy.

Description

Split type diamond grinding wheel

Technical Field

The utility model relates to a diamond-impregnated wheel, especially a split type diamond-impregnated wheel.

Background

The diamond grinding wheel or the diamond grinding disc is a disc-shaped grinding tool, the diamond grinding wheel comprises a metal matrix and diamond grinding teeth welded on the metal matrix, and the metal matrix is provided with mounting holes for being connected with a peripheral driving shaft. The peripheral driving shaft is a part of the grinding machine and drives the diamond grinding wheel to rotate at a high speed, and the peripheral workpiece is close to the diamond grinding wheel, so that the peripheral workpiece can be ground. The during operation, the linear velocity of the outer lane of emery wheel is greater than the linear velocity of inner circle, and the intensification is faster, and the physical properties of diamond descends under the high temperature, is worn and torn easily, and the diamond degree of wear on the used mill is inhomogeneous, and after partial grinding tooth damage on the mill, just need change whole mill, cause the waste of diamond.

Chinese patent publication No. CN204843885U discloses a diamond-impregnated wheel having a plurality of layers of helical teeth, which comprises: metal substrate and diamond tips. The diamond tool bit is in at least two circles of circular rings and is arranged on one side surface of the edge of the metal base body. "the specification states" that the inner cutter head is designed to be thinner than the outer cutter head in the radial direction, so that the wear amounts of the inner cutter head and the outer cutter head are close to each other in use. The problem that "prior art exists is that, interior tool bit designs to be thinner than the radial thickness of outer tool bit for the inner cutter head is close with the wearing and tearing volume of outer tool bit totality, but the wearing and tearing on the outer tool bit unit area are great than the wearing and tearing on the inner cutter bit unit area, and outer tool bit can lose cutting ability faster than interior tool bit, when needing to change the diamond-impregnated wheel, still has cutting ability of inner cutter bit, causes the waste of expensive diamond. Therefore, a new structure is needed to solve the problem of waste caused by uneven wear of the diamond grinding wheel.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: when partial grinding teeth on the grinding disc are damaged, the whole grinding disc needs to be replaced, and diamond waste is caused.

The utility model provides a solution of its technical problem is:

a split type diamond grinding wheel comprises a mounting disc, an outer grinding block and an inner grinding block, wherein a first connecting part and a second connecting part are respectively arranged on the outer grinding block and the inner grinding block; outer abrasive brick, interior abrasive brick all are cyclic annular, the top interval of outer abrasive brick is equipped with outer grinding tooth, outer chip groove of arranging, the top interval of interior abrasive brick is equipped with interior grinding tooth, interior chip groove, outer chip groove of arranging, interior chip groove of arranging communicates each other.

The number of the outer grinding teeth is more than that of the inner grinding teeth; the number of the outer grinding teeth is N times that of the inner grinding teeth, and N is a positive integer.

As an optional technical solution, the inner side wall of the outer grinding block abuts against the outer side wall of the inner grinding block.

As an optional technical solution, the main connection portion is a threaded hole, the first connection portion and the second connection portion are through holes, the main connection portion is in bolted connection with the first connection portion and the second connection portion, and the first connection portion and the second connection portion are respectively located in the outer chip groove and the inner chip groove.

Further as a preferred technical scheme, the first connecting portion and the second connecting portion are both countersunk holes, and the countersunk portions of the countersunk holes are arranged on the upper portions of the outer grinding block or the inner grinding block.

The utility model has the advantages that: when outer abrasive brick need be changed, can remain mounting disc and interior abrasive brick, only change outer abrasive brick and can continue to use the split type diamond-impregnated wheel of this application, can save the cost. And moreover, the outer chip removal groove and the inner chip removal groove are communicated with each other, so that the chip removal capacity of the inner chip removal groove can be improved.

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 front view of the present invention;

fig. 2 is an exploded view of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1 to 2, the embodiment of the present invention specifically includes:

the utility model provides a split type diamond-impregnated wheel, includes mounting disc 10, outer abrasive brick 20, interior abrasive brick 30, be equipped with first connecting portion 21, second connecting portion 31 on outer abrasive brick 20, the interior abrasive brick 30 respectively, be equipped with main connecting portion 11 on the mounting disc 10, main connecting portion 11 with first connecting portion 21, the equal detachably of second connecting portion 31 are connected, interior abrasive brick 30 is close to the center setting of mounting disc 10, outer abrasive brick 20 is located the outside of interior abrasive brick 30. Outer abrasive brick 20, interior abrasive brick 30 all are cyclic annularly, the top interval of outer abrasive brick 20 is equipped with outer grinding tooth 22, outer chip groove 23 of discharging, the top interval of interior abrasive brick 30 is equipped with interior grinding tooth 32, interior chip groove 33, outer chip groove 23 of discharging, interior chip groove 33 communicate each other, can improve the chip removal ability of interior chip groove 33, and under the effect of centrifugal force, the chip removal direction is outside, if the outer end of interior chip groove 33 is blockked up, then can pile up the abrasive dust in the interior chip groove 33. Because outer abrasive brick 20 locates the outside of interior abrasive brick 30, outer abrasive brick 20 is more easy wearing and tearing than interior abrasive brick 30, when outer abrasive brick 20 needs to be changed, can remain mounting disc 10 and interior abrasive brick 30, only changes outer abrasive brick 20 and can continue to use the split type diamond-impregnated wheel of this application, can save the cost. Of course, other grinding blocks can be additionally arranged on the outer side of the outer grinding block 20 and the inner side of the inner grinding block 30, only the damaged outer grinding block 20, inner grinding block 30 or other grinding blocks are replaced when the grinding blocks are replaced with new grinding blocks, the number of the grinding blocks is increased, and expensive diamonds are saved.

Further in a preferred embodiment, the number of outer grinding teeth 22 is greater than the number of inner grinding teeth 32. Because the outer grinding teeth 22 and the outer chip grooves 23 are arranged at intervals, the number of the outer chip grooves 23 is more than that of the inner chip grooves 33, the structure can weaken the grinding capacity of the outer grinding teeth 22, and can increase the chip removal capacity of the outer chip grooves 23, so that the grinding capacities of the inner grinding blocks 30 and the outer grinding blocks 20 are closer, and the service lives of the inner grinding blocks and the outer grinding blocks are closer. The number of the outer grinding teeth 22 is N times the number of the inner grinding teeth 32, where N is a positive integer. This configuration facilitates alignment of the outer flutes 23 and the inner flutes 33 during installation, reducing the possibility of errors during installation.

Further in a preferred embodiment, the inner side wall of the outer block 20 abuts against the outer side wall of the inner block 30. Be equipped with the clearance between interior tool bit among the prior art and the outer tool bit and be used for heat dissipation and chip removal, but this structure among the prior art only is applicable to the emery wheel of integral type, and in the split type diamond-impregnated wheel of this application, main connecting portion 11 with first connecting portion 21, the equal detachably of second connecting portion 31 are connected, will outer abrasive brick 20 the inside wall with the steadiness of interior abrasive brick 30 installation can be increased to the lateral wall butt of interior abrasive brick 30, reduces the vibration. Although the diamonds worn on the inner and

outer blocks

30 and 20 may be partially bonded together during disassembly, the bonding layer has a small thickness, and the inner and

outer blocks

30 and 20 may be removed integrally and separated by knocking.

As an alternative embodiment, the main connection portion 11 is a threaded hole, the first connection portion 21 and the second connection portion 31 are both through holes, the main connection portion 11 is bolted to the first connection portion 21 and the second connection portion 31, and the first connection portion 21 and the second connection portion 31 are respectively disposed in the outer chip groove 23 and the inner chip groove 33. The peripheral bolts penetrate through the first connecting portion 21 and the second connecting portion 31 from top to bottom and are in threaded connection with the main connecting portion 11. Those skilled in the art should understand that the screw head of the peripheral bolt should be located lower than the top surfaces of the outer grinding block 20 and the inner grinding block 30 to avoid the peripheral bolt interfering the outer grinding block 20 and the inner grinding block 30 to grind the peripheral workpiece.

In a further preferred embodiment, the first connecting portion 21 and the second connecting portion 31 are both countersunk holes, and the countersunk portions of the countersunk holes are disposed on the upper portions of the outer wear block 20 or the inner wear block 30. Therefore, the screw head position of the peripheral bolt is favorably reduced, the peripheral bolt is prevented from interfering the outer grinding block 20 and the inner grinding block 30 to grind the peripheral workpiece, and the influence on chip removal can be reduced.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. A split type diamond-impregnated wheel is characterized in that: the grinding wheel comprises a mounting disc (10), an outer grinding block (20) and an inner grinding block (30), wherein a first connecting part (21) and a second connecting part (31) are respectively arranged on the outer grinding block (20) and the inner grinding block (30), a main connecting part (11) is arranged on the mounting disc (10), the main connecting part (11) is detachably connected with the first connecting part (21) and the second connecting part (31), the inner grinding block (30) is arranged close to the center of the mounting disc (10), and the outer grinding block (20) is arranged on the outer side of the inner grinding block (30);

outer abrasive brick (20), interior abrasive brick (30) all are cyclic annularly, the top interval of outer abrasive brick (20) is equipped with outer grinding tooth (22), outer chip groove (23) of arranging, the top interval of interior abrasive brick (30) is equipped with interior grinding tooth (32), interior chip groove (33), outer chip groove (23), interior chip groove (33) communicate each other.

2. The split type diamond-impregnated wheel according to claim 1, wherein: the number of outer grinding teeth (22) is greater than the number of inner grinding teeth (32); the number of the outer grinding teeth (22) is N times that of the inner grinding teeth (32), and N is a positive integer.

3. The split type diamond-impregnated wheel according to claim 1, wherein: the inner side wall of the outer grinding block (20) is abutted with the outer side wall of the inner grinding block (30).

4. The split type diamond-impregnated wheel according to claim 1, wherein: the main connecting portion (11) is a threaded hole, the first connecting portion (21) and the second connecting portion (31) are through holes, the main connecting portion (11) is connected with the first connecting portion (21) and the second connecting portion (31) through bolts, and the first connecting portion (21) and the second connecting portion (31) are respectively arranged in the outer chip discharge groove (23) and the inner chip discharge groove (33).

5. The split type diamond-impregnated wheel according to claim 4, wherein: the first connecting portion (21) and the second connecting portion (31) are both countersunk holes, and the countersunk parts of the countersunk holes are arranged on the upper portions of the outer grinding blocks (20) or the inner grinding blocks (30).