Ceramic bond cubic boron nitride grinding wheel

Abstract

The utility model relates to the technical field of grinding tools, in particular to a ceramic bond cubic boron nitride grinding wheel which comprises a ceramic bond cubic boron nitride grinding wheel body provided with an installation plate, a sinking groove is formed in the upper end face of the installation plate, and an elastic protective cover is arranged in the sinking groove. The inserting hole is formed in the mounting plate, and an inserting rod is arranged on the lower end face of the mounting plate; the locking assembly is arranged in the mounting plate; the ceramic bond cubic boron nitride grinding wheel has the beneficial effects that through cooperation of the first flexible check block and the second flexible check block, the rubber band can be limited in the clamping groove, the elastic protective cover connected with the rubber band shields and protects the ceramic bond cubic boron nitride grinding wheel body, and when the ceramic bond cubic boron nitride grinding wheel body is stacked, the elastic protective cover is not prone to falling off. And the inserting rods on the upper-layer mounting plate are inserted into the inserting holes formed in the lower-layer mounting plate, so that the ceramic bond cubic boron nitride grinding wheel body is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding tools, in particular to a ceramic bond cubic boron nitride grinding wheel. Background Art

[0002] Ceramic bonded cubic boron nitride grinding wheels are made of cubic boron nitride abrasive as raw material, and metal powder, resin powder, ceramic and electroplated metal as binders to make products of various shapes. They are used as tools for grinding, polishing and lapping. Ceramic bonded cubic boron nitride grinding wheels have more advantages than diamond grinding wheels in processing ferrous metals.

[0003] In the prior art, a Chinese invention with publication number CN103223644B discloses a ceramic bond cubic boron nitride grinding wheel for grinding titanium alloy, which is composed of a matrix, a grinding wheel block and a bonding layer. The raw material components and their mass percentage contents of the grinding wheel block are 40-80% cubic boron nitride abrasive, 0-30% silicon carbide, 14-35% ceramic bond, and 6% temporary bond; the refractoriness of the ceramic bond is lower than 700°; the invention can effectively solve the defects of large grinding force, high grinding temperature, and severe grinding wheel adhesion in the grinding process of titanium alloy, and has the advantages of high thermal conductivity, good self-sharpening, high grinding efficiency, high grinding precision, long service life, low cost, and simple process;

[0004] However, the existing ceramic bonded cubic boron nitride grinding wheels are usually exposed to the external environment when not in use. Long-term exposure can easily cause damage to the surface of the ceramic bonded cubic boron nitride grinding wheels, resulting in unsatisfactory grinding effect of the ceramic bonded cubic boron nitride grinding wheels and reduced service life. Utility Model Content

[0005] The utility model aims to provide a cubic boron nitride grinding wheel with a ceramic bond to solve the problems raised by the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A ceramic bond cubic boron nitride grinding wheel, comprising:

[0008] A ceramic bonded cubic boron nitride grinding wheel body, wherein a matching mounting plate is arranged on the ceramic bonded cubic boron nitride grinding wheel body, a sink groove is provided on the upper end surface of the mounting plate, and an elastic protective cover is arranged inside the sink groove;

[0009] A socket is provided on the upper surface of the mounting plate near the center, and a matching plug rod is fixedly provided on the lower surface of the mounting plate at a position corresponding to the socket;

[0010] The locking assembly is arranged inside the mounting plate, and the locking assembly includes a push rod.

[0011] Preferably, a fixing hole is opened at the center position of the mounting plate, the fixing hole passes through the mounting plate, and reinforcing ribs are fixedly arranged on the surface of the mounting plate. The reinforcing ribs are arranged in multiple groups, and the multiple groups of reinforcing ribs are distributed in a circular state with the fixing hole as the center.

[0012] Preferably, a guide groove is provided on the surface of the mounting plate at a position corresponding to the sinking groove, and the guide groove is connected to the interior of the sinking groove;

[0013] One end of the elastic protective cover is connected to the interior of the sink, and the end of the elastic protective cover away from the sink passes through the guide groove and is fixedly connected with a rubber band, and a matching partition is fixedly provided on one side wall of the guide groove at the position corresponding to the rubber band.

[0014] Preferably, a snap-fit ​​groove is provided at the bottom of the mounting plate at a position corresponding to the guide groove, and the inner size of the snap-fit ​​groove matches the size of the rubber band;

[0015] A first flexible stopper with an arc-shaped structure is fixedly provided at the bottom of the mounting plate at a position corresponding to the engaging groove, a second flexible stopper with an arc-shaped structure is fixedly provided on the first flexible stopper, and one end of the second flexible stopper away from the first flexible stopper abuts against the inside of the engaging groove.

[0016] Preferably, the jacks are provided in a plurality of groups, and the plurality of groups of jacks are distributed in a circle with the fixing hole as the center.

[0017] Preferably, a countersunk hole is opened inside each of the sockets, a matching push rod is inserted inside each of the countersunk holes, a first return spring is arranged between the push rod and the bottom of the countersunk hole, and the countersunk hole is elastically inserted inside the push rod through the first return spring.

[0018] Preferably, a groove is provided on the side wall of the insertion rod at a position corresponding to the countersunk hole, and the groove is connected to the countersunk hole;

[0019] A matching plug block is inserted into the groove, and a bevel groove is formed on the outer surface of the ejector rod at a position corresponding to the plug block, and one end of the plug block matches the bevel groove;

[0020] A matching fixing groove is provided on the side wall of the insertion hole at a position corresponding to the insertion block.

[0021] Preferably, a second guide groove is provided at the bottom of the groove, a matching guide block is slidably provided inside the second guide groove, the guide block is fixedly connected to the insert block, and a second return spring is provided between the guide block and the second guide groove.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The utility model can limit the rubber band inside the engaging groove through the cooperation of the first flexible stopper and the second flexible stopper, and the elastic protective cover connected to the rubber band can shield and protect the ceramic bond cubic boron nitride grinding wheel body, thereby protecting the surface of the ceramic bond cubic boron nitride grinding wheel body, and when the ceramic bond cubic boron nitride grinding wheel bodies are stacked, the plug rod on the upper mounting plate will be plugged into the inside of the plug hole opened on the lower mounting plate, and during the plugging process, the plug rod presses down the elastically arranged push rod, and the push rod pushes the elastically arranged plug block outward through the cooperation of the bevel groove, so that the plug block is plugged into the inside of the fixing groove, thereby completing the fixation of two adjacent groups of ceramic bond cubic boron nitride grinding wheel bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the bottom of the three-dimensional structure of the utility model;

[0026] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the utility model;

[0027] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0028] Figure 5 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0029] Figure 6 for Figure 3 A magnified schematic diagram of the structure at C in the middle;

[0030] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point D in the middle.

[0031] In the figure: a ceramic bond cubic boron nitride grinding wheel body 1, a mounting plate 2, a reinforcing rib 3, a fixing hole 4, a plug hole 5, a first flexible stopper 6, an insert rod 7, a sink groove 8, an elastic protective cover 9, a guide groove 10, a rubber band 11, a partition 12, a snap-fit ​​groove 13, a second flexible stopper 15, a fixing groove 16, a sink hole 17, a push rod 18, a first return spring 19, a bevel groove 20, a groove 21, an insert block 22, a second guide groove 23, a second return spring 24, and a guide block 25. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0033] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0034] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0037] Embodiment 1:

[0038] See also Figures 1 to 7 The utility model provides a technical solution: a ceramic bond cubic boron nitride grinding wheel, comprising:

[0039] A ceramic bonded cubic boron nitride grinding wheel body 1, on which a matching mounting plate 2 is arranged, a sinking groove 8 is provided on the upper end surface of the mounting plate 2, and an elastic protective cover 9 is arranged inside the sinking groove 8;

[0040] A plug hole 5 is provided on the upper end surface of the mounting plate 2 near the center, and a matching plug rod 7 is fixedly provided on the lower end surface of the mounting plate 2 at a position corresponding to the plug hole 5;

[0041] A locking assembly, arranged inside the mounting plate 2, the locking assembly comprising a push rod 18;

[0042] When the elastic protective cover 9 inside the sink 8 is unfolded, the surface of the ceramic bond cubic boron nitride grinding wheel body 1 can be shielded to protect the ceramic bond cubic boron nitride grinding wheel body 1 from damage. When the ceramic bond cubic boron nitride grinding wheel body 1 is stacked through the mounting plate 2, the insertion rod 7 will be inserted into the inside of the insertion hole 5 and locked by the locking assembly, so as to achieve the purpose of fixedly stacking two adjacent groups of ceramic bond cubic boron nitride grinding wheel bodies 1.

[0043] Embodiment 2:

[0044] like Figure 2-Figure 5 As shown, the structure of the ceramic bonded cubic boron nitride grinding wheel disclosed in the second embodiment of the present invention is basically the same as that in the first embodiment, except that:

[0045] A fixing hole 4 is provided at the center of the mounting plate 2, the fixing hole 4 penetrates the mounting plate 2, and a reinforcing rib 3 is fixedly provided on the surface of the mounting plate 2, and the reinforcing rib 3 is provided in multiple groups, and the multiple groups of reinforcing ribs 3 are distributed in a circular state with the fixing hole 4 as the center;

[0046] A guide groove 10 is provided on the surface of the mounting plate 2 at a position corresponding to the sink 8, and the guide groove 10 is connected to the inside of the sink 8;

[0047] One end of the elastic protective cover 9 is connected to the interior of the sink 8, and the end of the elastic protective cover 9 away from the sink 8 passes through the guide groove 10 and is fixedly connected with a rubber band 11, and a matching partition 12 is fixedly provided on one side wall of the guide groove 10 at a position corresponding to the rubber band 11;

[0048] A snap-fit ​​groove 13 is provided at the bottom of the mounting plate 2 at a position corresponding to the guide groove 10 , and the inner size of the snap-fit ​​groove 13 matches the size of the rubber band 11 ;

[0049] A first flexible stopper 6 with an arc-shaped structure is fixedly provided at the bottom of the mounting plate 2 at a position corresponding to the engaging groove 13, a second flexible stopper 15 with an arc-shaped structure is fixedly provided on the first flexible stopper 6, and an end of the second flexible stopper 15 away from the first flexible stopper 6 abuts against the inside of the engaging groove 13;

[0050] Through the cooperation of the first flexible stopper 6 and the second flexible stopper 15, the rubber band 11 can be limited inside the locking groove 13, and the elastic protective cover 9 connected to the rubber band 11 can shield and protect the ceramic bond cubic boron nitride grinding wheel body 1, thereby protecting the surface of the ceramic bond cubic boron nitride grinding wheel body 1 and preventing the surface of the ceramic bond cubic boron nitride grinding wheel body 1 from being damaged.

[0051] Embodiment three:

[0052] like Figure 6-Figure 7 As shown, the structure of the ceramic bonded cubic boron nitride grinding wheel disclosed in the third embodiment of the present invention is basically the same as that in the second embodiment, except that:

[0053] The sockets 5 are provided with a plurality of groups, and the plurality of sockets 5 are distributed in a circular state with the fixing hole 4 as the center;

[0054] Each of the jacks 5 is provided with a countersunk hole 17, and a matching ejector rod 18 is inserted in the interior of each of the countersunk holes 17. A first return spring 19 is provided between the ejector rod 18 and the bottom of the countersunk hole 17, and the countersunk hole 17 is elastically inserted into the ejector rod 18 through the first return spring 19.

[0055] A groove 21 is formed on the side wall of the insertion rod 7 at a position corresponding to the countersunk hole 17, and the groove 21 is connected to the countersunk hole 17;

[0056] A matching insert block 22 is inserted into the groove 21, and a bevel groove 20 is formed on the outer surface of the ejector rod 18 at a position corresponding to the insert block 22, and one end of the insert block 22 matches the bevel groove 20;

[0057] A matching fixing groove 16 is formed on the side wall of the insertion hole 5 at a position corresponding to the insertion block 22;

[0058] A second guide groove 23 is provided at the bottom of the groove 21, a matching guide block 25 is slidably provided inside the second guide groove 23, the guide block 25 is fixedly connected to the insert block 22, and a second return spring 24 is provided between the guide block 25 and the second guide groove 23;

[0059] When stacking the ceramic bonded cubic boron nitride grinding wheel bodies 1, the insertion rod 7 on the upper mounting plate 2 will be inserted into the inside of the insertion hole 5 opened on the lower mounting plate 2, and during the insertion process, the insertion rod 7 presses down the elastically arranged push rod 18, and the push rod 18 pushes the elastically arranged plug block 22 outward through the cooperation of the bevel groove 20, so that the plug block 22 is inserted into the inside of the fixing groove 16, thereby completing the fixation of two adjacent groups of ceramic bonded cubic boron nitride grinding wheel bodies 1.

[0060] The present solution is specifically as follows: the rubber band 11 is pulled outwards, and the rubber band 11 is clamped inside the clamping groove 13, and the rubber band 11 is limited inside the clamping groove 13 by the cooperation of the first flexible stopper 6 and the second flexible stopper 15. When the rubber band 11 is pulled, the elastic protective cover 9 connected to the rubber band 11 can shield and protect the ceramic bond cubic boron nitride grinding wheel body 1;

[0061] When the ceramic bonded cubic boron nitride grinding wheel bodies 1 are stacked, the insertion rod 7 on the upper mounting plate 2 will be plugged into the inside of the insertion hole 5 opened on the lower mounting plate 2, and during the plugging process, the insertion rod 7 presses down the elastically arranged push rod 18, and the push rod 18 pushes the elastically arranged plug block 22 outward through the cooperation of the bevel groove 20, so that the plug block 22 is plugged into the inside of the fixing groove 16, so that the two adjacent groups of ceramic bonded cubic boron nitride grinding wheel bodies 1 in the lower layer are fixedly connected, thereby realizing the stability of the ceramic bonded cubic boron nitride grinding wheel bodies 1 during the stacking process.

[0062] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0063] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A ceramic bond cubic boron nitride grinding wheel, characterized in that: include: A ceramic bonded cubic boron nitride grinding wheel body (1), wherein a matching mounting plate (2) is arranged on the ceramic bonded cubic boron nitride grinding wheel body (1), a sink groove (8) is provided on the upper end surface of the mounting plate (2), and an elastic protective cover (9) is arranged inside the sink groove (8); A plug hole (5) is provided on the upper end surface of the mounting plate (2) near the center, and a matching plug rod (7) is fixedly provided on the lower end surface of the mounting plate (2) at a position corresponding to the plug hole (5); A locking assembly is arranged inside the mounting plate (2), and the locking assembly comprises a push rod (18).

2. The ceramic bonded cubic boron nitride grinding wheel according to claim 1, characterized in that: A fixing hole (4) is provided at the center of the mounting plate (2), the fixing hole (4) passes through the mounting plate (2), and reinforcing ribs (3) are fixedly provided on the surface of the mounting plate (2), wherein a plurality of groups of the reinforcing ribs (3) are provided, and the plurality of groups of the reinforcing ribs (3) are distributed in a circular state with the fixing hole (4) as the center.

3. The ceramic bonded cubic boron nitride grinding wheel according to claim 2, characterized in that: A guide groove (10) is provided on the surface of the mounting plate (2) at a position corresponding to the sink groove (8), and the guide groove (10) is connected to the interior of the sink groove (8); One end of the elastic protective cover (9) is in communication with the interior of the sink (8), and one end of the elastic protective cover (9) away from the sink (8) passes through the guide groove (10) and is fixedly connected to a rubber band (11), and a matching partition (12) is fixedly provided on a side wall of the guide groove (10) at a position corresponding to the rubber band (11).

4. The ceramic bonded cubic boron nitride grinding wheel according to claim 3, characterized in that: A snap-fit ​​groove (13) is provided at the bottom of the mounting plate (2) at a position corresponding to the guide groove (10), and the internal size of the snap-fit ​​groove (13) matches the size of the rubber band (11); A first flexible stopper (6) with an arc-shaped structure is fixedly arranged at the bottom of the mounting plate (2) at a position corresponding to the engaging groove (13); a second flexible stopper (15) with an arc-shaped structure is fixedly arranged on the first flexible stopper (6); an end of the second flexible stopper (15) away from the first flexible stopper (6) abuts against the inside of the engaging groove (13).

5. The ceramic bonded cubic boron nitride grinding wheel according to claim 4, characterized in that: The insertion holes (5) are provided in a plurality of groups, and the plurality of insertion holes (5) are distributed in a circular state with the fixing hole (4) as the center.

6. The ceramic bonded cubic boron nitride grinding wheel according to claim 5, characterized in that: A countersunk hole (17) is provided inside each of the jacks (5), a matching push rod (18) is inserted inside each of the countersunk holes (17), a first return spring (19) is provided between the push rod (18) and the bottom of the countersunk hole (17), and the countersunk hole (17) is elastically inserted inside the push rod (18) via the first return spring (19).

7. The ceramic bonded cubic boron nitride grinding wheel according to claim 6, characterized in that: A groove (21) is provided on the side wall of the insertion rod (7) at a position corresponding to the countersunk hole (17), and the groove (21) is connected to the countersunk hole (17); A matching insert block (22) is inserted into the interior of the groove (21), and a bevel groove (20) is provided on the outer surface of the push rod (18) at a position corresponding to the insert block (22), and one end of the insert block (22) matches the bevel groove (20); A matching fixing groove (16) is provided on the side wall of the insertion hole (5) at a position corresponding to the insertion block (22).

8. The ceramic bonded cubic boron nitride grinding wheel according to claim 7, characterized in that: A second guide groove (23) is provided at the bottom of the groove (21), a matching guide block (25) is slidably provided inside the second guide groove (23), the guide block (25) is fixedly connected to the insert block (22), and a second return spring (24) is provided between the guide block (25) and the second guide groove (23).

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