Cubic boron nitride grinding wheel

Abstract

The utility model discloses a cubic boron nitride grinding wheel, and particularly relates to the field of grinding wheels, the cubic boron nitride grinding wheel comprises a lining assembly and a tightening latch, the lining assembly is sleeved with an inner steel ring, a plurality of supporting assemblies are installed in the inner steel ring, and the inner steel ring is sleeved with a boron nitride grinding wheel body. One ends of the multiple supporting assemblies are jointly connected and matched with the lining assembly, the other ends of the multiple supporting assemblies are jointly connected and matched with the boron nitride grinding wheel body, and the tightening latch is used for connecting the lining assembly and the inner steel ring. According to the utility model, the boron nitride grinding wheel and the internal steel ring can be detached, so that when the boron nitride grinding wheel is damaged, the boron nitride grinding wheel can be directly replaced, and the internal steel ring part can still be directly used, thereby reducing the waste of resources and simultaneously reducing the manufacturing cost of the boron nitride grinding wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding wheels, and more specifically, to a cubic boron nitride grinding wheel. Background Art

[0002] With the rapid development of China's machinery manufacturing industry, more and more domestic compressor parts, hydraulic parts, seals, and various parts in automobile engines, gearboxes, steering pumps, etc. are increasingly using cubic boron nitride (CBN) grinding wheels for double-end surface grinding.

[0003] The utility model patent with patent publication number CN210704351U discloses a combined efficient grinding cubic boron nitride grinding wheel, including a metal fixing ring, the outer wall of the metal fixing ring is provided with a second cubic boron nitride grinding wheel, and the middle end of the outer wall of the second cubic boron nitride grinding wheel is provided with a threaded structure, and the outer wall of the threaded structure is spirally engaged with the threaded portion of the inner wall of the first cubic boron nitride grinding wheel, and the thickness of the first cubic boron nitride grinding wheel is less than the thickness of the second cubic boron nitride grinding wheel. The combined efficient grinding cubic boron nitride grinding wheel is provided with a first cubic boron nitride grinding wheel and a second cubic boron nitride grinding wheel which are mutually spirally engaged. Through the portable combined disassembly and assembly operation therebetween, the worn first cubic boron nitride grinding wheel can be replaced in time, and when the spare first cubic boron nitride is missing, the second cubic boron nitride grinding wheel can be directly used to grind the processing tool, making the grinding work more efficient.

[0004] However, in actual use, although the structure is provided with two grinding wheels, when one grinding wheel is damaged, the other can be replaced to continue working. However, since the connection between the boron nitride grinding wheel and the inner steel ring cannot be disassembled, the scrapping and replacement of the boron nitride grinding wheel also requires replacement of the entire wheel, which will cause the inner steel ring to be scrapped as well, thus causing a waste of resources and an increase in processing costs.

[0005] Therefore, in view of the defects of the above-mentioned prior art, a cubic boron nitride grinding wheel is proposed, which can separate the boron nitride grinding wheel from the inner steel ring, so that only the boron nitride grinding wheel needs to be replaced, thereby reducing resource waste. Utility Model Content

[0006] In order to overcome the above defects of the prior art, the utility model provides a cubic boron nitride grinding wheel to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cubic boron nitride grinding wheel, comprising an inner lining assembly and a bolt rod, the outer side of the inner lining assembly is sleeved with an inner steel ring, a plurality of support assemblies are installed in the inner steel ring, a boron nitride grinding wheel body is sleeved with the outer side of the inner steel ring, one end of the plurality of support assemblies is commonly connected and matched with the inner lining assembly, and the other end of the plurality of support assemblies is commonly connected and matched with the boron nitride grinding wheel body, and the bolt rod is used to connect the inner lining assembly and the inner steel ring;

[0008] The lining assembly comprises a lining ring, and the lining ring is inserted into the inner steel ring;

[0009] Two rotating discs, each of which is mounted at two ends of the inner steel ring;

[0010] A plurality of movable grooves, each of which is arranged in a ring and evenly opened on the liner, and one end of each supporting component is inserted into the corresponding movable groove;

[0011] The support assembly includes a support rod, the support rod is inserted into the corresponding guide hole, and one end of the support rod is inserted into the corresponding movable groove;

[0012] A support plate, which is an arc-shaped structure and is welded to the other end of the support rod;

[0013] A lock head is welded on the outer side of the support plate.

[0014] Preferably, the inner steel ring comprises a ring body, and the ring body is sleeved on the outside of the lining ring;

[0015] Two protective plates, each of which is installed on both sides of the ring body;

[0016] A plurality of guide holes are arranged in a ring shape and penetrate through the ring body, and each supporting assembly is plugged into a corresponding guide hole.

[0017] Preferably, a first through hole is formed on the ring body, and a second through hole is formed on the rotating disk, and when the first through hole and the second through hole are connected and matched, the bolt rod is inserted into the first through hole and the second through hole.

[0018] Preferably, one end of the support rod is in a trapezoidal structure and forms a first sliding surface, and a groove wall of the movable groove is opened in an inclined shape to form a second sliding surface, and the first sliding surface and the second sliding surface are slidably matched.

[0019] Preferably, a plurality of locking grooves are evenly and annularly formed on the inner side of the boron nitride grinding wheel body, and each of the locking heads is plugged into and matched with the corresponding locking groove.

[0020] Technical effects and advantages of the utility model:

[0021] By providing a locking groove on the inner wall of the boron nitride grinding wheel and dividing the internal steel ring into an inner lining component, an inner steel ring and a supporting component, compared with the prior art, firstly, the boron nitride grinding wheel and the internal steel ring part can be disassembled and separated, so that when the boron nitride grinding wheel is damaged, the boron nitride grinding wheel can be directly replaced, and the internal steel ring can be reused, thereby reducing resource waste and reducing the manufacturing cost of the boron nitride grinding wheel; secondly, when the internal steel ring part is installed on the equipment, when the boron nitride grinding wheel is damaged, the boron nitride grinding wheel part can be directly replaced without disassembling the internal steel ring part, thereby improving the replacement efficiency of the boron nitride grinding wheel and shortening the maintenance time;

[0022] Through the arrangement of the lining assembly, the inner steel ring, the support assembly and the bolt rod, compared with the prior art, the support assembly installed inside the inner steel ring can be expanded and adjusted by rotating the lining assembly, so that the boron nitride grinding wheel can be supported and fixed during expansion, and the rotation between the lining assembly and the inner steel ring can be fixed by the bolt rod, so that the whole is fixed and the whole can rotate synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0025] Figure 3 It is a structural schematic diagram of the lining assembly of the utility model.

[0026] Figure 4 It is a structural schematic diagram of the inner steel ring of the utility model.

[0027] Figure 5 It is a structural schematic diagram of the support assembly of the utility model.

[0028] Figure 6 This is a schematic diagram of the structure of the boron nitride grinding wheel body of the utility model.

[0029] The accompanying drawings are marked as follows: 1. lining assembly; 101. lining ring; 102. turntable; 103. movable groove; 2. inner steel ring; 201. ring body; 202. protective plate; 203. guide hole; 3. boron nitride grinding wheel body; 4. bolt rod; 5. support assembly; 501. support rod; 502. support plate; 503. lock head; 6. lock groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] As attached Figure 1-6 A cubic boron nitride grinding wheel shown in the figure includes a lining component 1 and a bolt rod 4, the lining component 1 is externally sleeved with an inner steel ring 2, a plurality of support components 5 are installed in the inner steel ring 2, a boron nitride grinding wheel body 3 is externally sleeved with the inner steel ring 2, one end of the plurality of support components 5 is commonly connected to the lining component 1, and the other end of the plurality of support components 5 is commonly connected to the boron nitride grinding wheel body 3, and the bolt rod 4 is used to connect the lining component 1 and the inner steel ring 2.

[0032] During specific implementation, the lining component 1 can be rotated to squeeze each supporting component 5, so that each supporting component 5 expands outward, and the boron nitride grinding wheel body 3 sleeved on the outside of the inner steel ring 2 is supported and fixed, and the rotation between the lining component 1 and the inner steel ring 2 is connected and locked by the bolt rod 4, thereby achieving the fixation of the boron nitride grinding wheel body 3.

[0033] As attached Figure 3 As shown, the lining assembly 1 includes a lining ring 101, and the lining ring 101 is inserted into the inner steel ring 2;

[0034] Two rotating discs 102, each of which is mounted at two ends of the inner steel ring 2;

[0035] A plurality of movable grooves 103 are evenly arranged in a ring shape on the liner 101 , and one end of each supporting assembly 5 is inserted into the corresponding movable groove 103 .

[0036] In specific implementation, movable grooves 103 are provided on the liner 101, and each movable groove 103 is respectively matched with a supporting assembly 5. When the turntable 102 is rotated from the outside, each movable groove 103 and the end of the supporting assembly 5 are slidingly dislocated, so that each supporting assembly 5 is synchronously expanded outward.

[0037] As attached Figure 4 As shown, the inner steel ring 2 includes a ring body 201, and the ring body 201 is sleeved on the outside of the liner ring 101;

[0038] Two protective plates 202, each of which is installed on both sides of the ring body 201;

[0039] A plurality of guide holes 203 are arranged in a ring shape and penetrate the ring body 201 , and each support assembly 5 is inserted into a corresponding guide hole 203 .

[0040] By opening a guide hole 203 on the ring body 201, a support assembly 5 can be installed in each guide hole 203, thereby guiding the support assembly 5. At the same time, a limit rod can be installed in the guide hole 203, and a slide groove is opened on the support assembly 5, so that the limit rod is inserted into the slide groove. When the support assembly 5 slides in the guide hole 203, the limit rod limits the movement of the support assembly 5 in the slide groove. At the same time, it can prevent the support assemblies 5 from falling off when the boron nitride grinding wheel body 3 is disassembled.

[0041] As attached Figure 5 As shown, the support assembly 5 includes a support rod 501, the support rod 501 is inserted into the corresponding guide hole 203, and one end of the support rod 501 is inserted into the corresponding movable groove 103;

[0042] A support plate 502, wherein the support plate 502 is an arc-shaped structure and is welded to the other end of the support rod 501;

[0043] The lock head 503 is welded to the outer side of the support plate 502 .

[0044] A plurality of locking grooves 6 are evenly arranged in an annular shape on the inner side of the boron nitride grinding wheel body 3 , and each of the locking heads 503 is plugged into and matched with the corresponding locking groove 6 .

[0045] During specific implementation, one end of the support plate 502 is squeezed by the movable groove 103 and moves outward along the guide hole 203, so that the support plate 502 can be abutted against the inner wall of the boron nitride grinding wheel body 3, and the lock head 503 is inserted into the lock groove 6, thereby fixing the boron nitride grinding wheel body 3 so that the whole can rotate synchronously.

[0046] As attached Figure 3 and Figure 4 As shown, the ring body 201 is provided with a first through hole, and the rotating disk 102 is provided with a second through hole. When the first through hole and the second through hole are connected and matched, the bolt rod 4 is inserted into the first through hole and the second through hole.

[0047] During specific implementation, by rotating the turntable 102 so that the second through hole is connected and matched with the first through hole, the rotation of the turntable 102 can be limited by installing the bolt rod 4, so that the lining assembly 1 and the inner steel ring 2 are fixed.

[0048] As attached Figure 3 , Figure 4 and Figure 5As shown, one end of the support rod 501 is in a trapezoidal structure and forms a first sliding surface, and a groove wall of the movable groove 103 is opened in an inclined shape to form a second sliding surface, and the first sliding surface and the second sliding surface are slidably matched.

[0049] In a specific implementation, when the liner 101 is rotated, each movable groove 103 rotates accordingly, so that the second sliding surface is pressed against the first sliding surface and moves, so that the support rod 501 is stressed and expanded outward.

[0050] The working principle of the utility model is as follows: when the boron nitride grinding wheel body 3 is damaged and needs to be replaced, the new boron nitride grinding wheel body 3 is directly sleeved on the outside of the inner steel ring 2, and the liner 101 is rotated by rotating the turntable 102, so that the movable groove 103 and the end of the support rod 501 slide, and the support rod 501 is pushed outward along the direction of the guide hole 203, so that the lock head 503 is inserted into the lock groove 6, and the support plate 502 supports the inner wall of the boron nitride grinding wheel body 3, and then when the first through hole and the second through hole are connected and matched, the bolt rod 4 is inserted to fix the liner 101 and the ring body 201, thereby completing the replacement of the boron nitride grinding wheel body 3, so that there is no need to discard the internal steel ring of the grinding wheel, and it can be reused, thereby reducing resource waste and reducing the manufacturing cost of the boron nitride grinding wheel.

[0051] The utility model has the function of being able to disassemble the boron nitride grinding wheel and the inner steel ring, so that when the boron nitride grinding wheel is damaged, the boron nitride grinding wheel can be directly replaced, and the inner steel ring part can still be directly used, thereby reducing the waste of resources and reducing the cost of manufacturing the boron nitride grinding wheel.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cubic boron nitride grinding wheel, comprising a liner assembly (1) and a bolt rod (4), characterized in that: The inner lining component (1) is sleeved with an inner steel ring (2) on the outside, a plurality of support components (5) are installed in the inner steel ring (2), a boron nitride grinding wheel body (3) is sleeved with the outer side of the inner steel ring (2), one end of the plurality of support components (5) is commonly connected to the inner lining component (1), and the other end of the plurality of support components (5) is commonly connected to the boron nitride grinding wheel body (3), and the bolt rod (4) is used to connect the inner lining component (1) and the inner steel ring (2); The lining assembly (1) comprises a lining ring (101), and the lining ring (101) is inserted into the inner steel ring (2); Two rotating disks (102), each of the rotating disks (102) being mounted at two ends of the inner steel ring (2); A plurality of movable grooves (103), each of the movable grooves (103) is arranged in a ring shape and is evenly opened on the liner (101), and one end of each support assembly (5) is inserted into the corresponding movable groove (103); The support assembly (5) comprises a support rod (501), wherein the support rod (501) is inserted into a corresponding guide hole (203), and one end of the support rod (501) is inserted into a corresponding movable groove (103); A support plate (502), wherein the support plate (502) is an arc-shaped structure, and the support plate (502) is welded to the other end of the support rod (501); A lock head (503), wherein the lock head (503) is welded to the outside of the support plate (502).

2. A cubic boron nitride grinding wheel according to claim 1, characterized in that: The inner steel ring (2) comprises a ring body (201), and the ring body (201) is sleeved on the outside of the liner ring (101); Two protective plates (202), each of the protective plates (202) being mounted on two sides of the ring body (201); A plurality of guide holes (203), each of the guide holes (203) is arranged in a ring shape and penetrates the ring body (201), and each support assembly (5) is plugged into a corresponding guide hole (203).

3. A cubic boron nitride grinding wheel according to claim 2, characterized in that: The ring body (201) is provided with a first through hole, and the rotating disk (102) is provided with a second through hole, and when the first through hole and the second through hole are connected and matched, the bolt rod (4) is inserted into the first through hole and the second through hole.

4. A cubic boron nitride grinding wheel according to claim 1, characterized in that: One end of the support rod (501) is in a trapezoidal structure and forms a first sliding surface, and a groove wall of the movable groove (103) is opened in an inclined shape to form a second sliding surface, and the first sliding surface and the second sliding surface are slidably matched.

5. The cubic boron nitride grinding wheel according to claim 1, characterized in that: The inner side of the boron nitride grinding wheel body (3) is evenly provided with a plurality of locking grooves (6) in an annular shape, and each of the locking heads (503) is plugged into and matched with the corresponding locking groove (6).

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