Easily-mounted ceramic CBN (Cubic Boron Nitride) arc grinding wheel with embedded transition layer

Abstract

The utility model discloses an embedded transition layer ceramic CBN arc grinding wheel easy to install, and belongs to the technical field of ceramic CBN arc grinding wheels. The double-layer abrasive ring comprises a base wheel, an embedding groove is formed in the surface of the base wheel, a transmission opening is formed in the center of the base wheel, fixing holes are formed in the surface of the base wheel, the fixing holes are annularly and evenly arranged with the transmission opening as the circle center, an embedding ring is clamped to the inner wall of the embedding groove, and a double-layer abrasive ring body is fixedly connected to the surface of the embedding ring. Through cooperation of the base wheel, the embedding groove, the fixing hole, the embedding ring, the extrusion groove, the positioning block and the extrusion spring, the embedding ring and the double-layer type abrasive ring body can be clamped into the embedding groove, the positioning block and the positioning groove are connected in a clamped mode, then the sealing cover is installed in the fixing groove, installation of the double-layer type abrasive ring body is achieved, the operation process is simple and convenient, and the efficiency is high. The grinding wheel is easy to install, the whole grinding wheel does not need to be replaced, and resource waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of ceramic CBN circular arc grinding wheels, in particular to an easy-to-install embedded transition layer ceramic CBN circular arc grinding wheel. Background Art

[0002] In the existing technology, the transition layer grinding wheel is mainly based on resin bond, and the application of vitrified bond is rare. Moreover, the technical difficulty is very high. In addition, the abrasive layer of the vitrified CBN grinding wheel is directly bonded to the outer circle and end face of the steel substrate, and embedded bonding is unique.

[0003] After searching, the Chinese patent application number 202121374884.9 discloses an embedded transition layer ceramic CBN circular arc grinding wheel. This patent belongs to the field of grinding wheel preparation technology and specifically discloses an embedded transition layer ceramic CBN circular arc grinding wheel. It includes a steel base and a double-layer abrasive ring. The steel base is composed of a first base and a second base spliced together, and the first base and the second base are spliced to form an embedding groove; the double-layer abrasive ring is embedded in the embedding groove. The double-layer abrasive ring includes a transition layer located on the inner periphery and an abrasive layer located on the outer periphery. The transition layer and the abrasive layer are an integrally molded structure. This patent can not only effectively increase the usage of the grinding wheel CBN layer and reduce the probability of grinding wheel derailment, but also its thermal conductivity coefficient is closer to that of the steel base, thus avoiding the problem of grinding wheel expansion and cracking caused by the heat from the grinding interface being directly transferred to the grinding wheel base during grinding. This patent effectively solves the problems of CBN abrasive waste, grinding wheel derailment, and grinding wheel abrasive layer expansion and cracking in the prior art, and has great economic and social value.

[0004] Although the above patent solves the problems of CBN abrasive waste, grinding wheel derailment and grinding wheel abrasive layer expansion and cracking in the prior art, in actual use, the patent installs the double-layer abrasive ring by bonding, and the double-layer abrasive ring will inevitably be worn or damaged during use, which makes it difficult to replace the double-layer abrasive ring, which is very troublesome. In addition, if the double-layer abrasive is too firmly bonded to the steel substrate, the double-layer abrasive ring cannot be disassembled, and the entire grinding wheel needs to be replaced, resulting in a waste of resources, thereby reducing the practicality of the patent to a certain extent. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the purpose of the present invention is to provide an easy-to-install embedded transition layer ceramic CBN circular arc grinding wheel, which has the advantages of easy replacement of the abrasive ring and easy installation, without the need to replace the entire grinding wheel, thereby reducing resource waste.

[0006] The utility model provides the following technical solution: an easy-to-install embedded transition layer ceramic CBN circular arc grinding wheel, comprising a base wheel, the surface of the base wheel is provided with an embedding groove, the center of the base wheel is provided with a transmission port, the surface of the base wheel is provided with four fixing holes, and the four fixing holes are evenly arranged in a ring with the transmission port as the center, the inner wall of the embedding groove is clamped with an embedding ring, the surface of the embedding ring is fixedly connected with a double-layer abrasive ring body, the inner wall of the embedding ring is provided with four positioning grooves, and the positions of the four positioning grooves correspond one to one to the four fixing holes respectively, the inner wall of the base wheel is provided with four extrusion grooves, and the four extrusion grooves are evenly arranged in a ring, the interior of the extrusion groove is slidably connected with a positioning block, and the positioning block is slidably connected to the extrusion groove and is arranged in a sound-matching manner with the positioning groove, the surface of the positioning block is fixedly connected with an extrusion spring, the surface of the base wheel is provided with a fixing groove, the surface of the fixing groove is clamped with a sealing cover, and the sealing cover is arranged in a sound-matching manner with the embedding ring.

[0007] The beneficial effects of the utility model are as follows:

[0008] 1. The utility model can insert the embedded ring and the double-layer abrasive ring body into the embedded groove through the cooperation of the base wheel, the embedded groove, the fixing hole, the embedded ring, the extrusion groove, the positioning block and the extrusion spring, and make the positioning block engage with the positioning groove, and then install the cover into the fixing groove, thereby realizing the installation of the double-layer abrasive ring body. The operation process is simple and easy to install, and there is no need to replace the entire grinding wheel, which reduces resource waste.

[0009] 2. The utility model provides a connecting column, a slider and a fastening hole, and can use an external bolt to connect the fixing hole with the flange at the output end of the external driving device. At this time, the external bolt can pass through the fastening hole, so that the position of the slider can be positioned synchronously, thereby avoiding the shaking of the positioning block and improving the stability of the double-layer abrasive ring body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the utility model.

[0011] Figure 2 It is a three-dimensional schematic diagram of the other side of the structure of the utility model.

[0012] Figure 3 It is a partial cross-sectional perspective schematic diagram of the structure of the utility model.

[0013] Figure 4 It is a three-dimensional schematic diagram of the base wheel of the utility model.

[0014] Figure 5 This is a bottom-up perspective diagram of the cover of the utility model.

[0015] Figure 6It is a three-dimensional schematic diagram of the embedded ring of the utility model. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0017] like Figures 1 to 6 As shown, the embedded transition layer ceramic CBN circular arc grinding wheel of this embodiment includes a base wheel 1, an embedding groove 2 is provided on the surface of the base wheel 1, a transmission port is provided at the center of the base wheel 1, four fixing holes 3 are provided on the surface of the base wheel 1, and the four fixing holes 3 are evenly arranged in a ring with the transmission port as the center, an embedding ring 4 is clamped on the inner wall of the embedding groove 2, a double-layer abrasive ring body 5 is fixedly connected to the surface of the embedding ring 4, four positioning grooves 6 are provided on the inner wall of the embedding ring 4, and the positions of the four positioning grooves 6 correspond one to one to the four fixing holes 3 respectively, four extrusion grooves 7 are provided on the inner wall of the base wheel 1, and the four extrusion grooves 7 are evenly arranged in a ring, a positioning block 8 is slidably connected to the inside of the extrusion groove 7, and the positioning block 8 is slidably connected to the extrusion groove 7 and is relatively matched with the positioning groove 6, an extrusion spring 9 is fixedly connected to the surface of the positioning block 8, a fixing groove 10 is provided on the surface of the base wheel 1, a sealing cover 11 is clamped on the surface of the fixing groove 10, and the sealing cover 11 is relatively matched with the embedding ring 4.

[0018] refer to Figure 3 The groove wall of the extrusion groove 7 is provided with a sliding opening, and the sliding opening is connected to the fixing hole 3. The other side of the positioning block 8 is fixedly connected with a connecting column 12, and the other end of the connecting column 12 is fixedly connected with a slider 13, and the slider 13 is slidably connected to the sliding opening. A fastening hole 14 is provided on the top of the slider 13, and the fastening hole 14 is arranged to match the fixing hole 3.

[0019] In this embodiment, by providing the sliding mouth, the connecting column 12, the slider 13 and the fastening hole 14, an external bolt can be used to connect the fixing hole 3 to the flange at the output end of the external driving device. At this time, the external bolt can pass through the fastening hole 14, so that the position of the slider 13 can be synchronously positioned, thereby preventing the positioning block 8 from shaking, and thus improving the stability of the double-layer abrasive ring body 5 during use.

[0020] refer to Figure 3 The side of the slider 13 away from the positioning block 8 is arranged in an arc shape, and a groove is opened on the side of the slider 13 away from the positioning block 8, and a pull block is fixedly connected to the inside of the groove.

[0021] In this embodiment, the slider 13 is arranged in an arc shape on one side away from the positioning block 8, so that the surface of the slider 13 can fit the curvature of the transmission port. The arrangement of the groove and the pull block makes it easy for the staff to pull the slider 13, so that it drives the positioning block 8 to leave the positioning groove 6 through the connecting column 12, providing a fulcrum for the staff's hand.

[0022] refer to Figure 4 and Figure 6 The groove wall of the embedded groove 2 is fixedly connected with four guide columns 15, and the four guide columns 15 are evenly arranged in a ring shape. The inner wall of the embedded ring 4 is provided with four guide grooves 16, and the four guide grooves 16 are respectively slidably connected with the four guide columns 15.

[0023] This embodiment, through the provision of four guide posts 15 and guide grooves 16, can, on the one hand, assist in supporting the embedding ring 4, making it more stable during rotation; on the other hand, it can enable the use of a limiting method that avoids errors, so that the operator does not need to spend attention, experience or professional knowledge to directly and accurately complete the correct insertion of the embedding ring 4 into the embedding groove 2, so that the positioning groove 6 is aligned with the extrusion groove 7.

[0024] refer to Figure 5 The inner wall of the cover 11 is provided with four auxiliary grooves 17 , and the four auxiliary grooves 17 are slidably connected to the four guide posts 15 respectively.

[0025] In this embodiment, by providing the four auxiliary grooves 17 , the cover 11 can be installed in the fixing groove 10 and shaking of the cover 11 can be prevented.

[0026] refer to Figure 2 、 Figure 4 and Figure 5 The surface of the fixing groove 10 is fixedly connected with four clips 18, and the four clips 18 are evenly arranged in a ring shape. The surface of the cover 11 is provided with four clip grooves 19, and the four clip grooves 19 are in a one-to-one correspondence with the four clips 18 respectively.

[0027] In this embodiment, the four clamping members 18 and the clamping grooves 19 are provided to reinforce the position of the cover 11, thereby preventing it from accidentally falling off.

[0028] The structure and usage principle of the double-layer abrasive ring body 5 in the utility model have been disclosed in the embedded transition layer ceramic CBN circular arc grinding wheel disclosed in Chinese patent application number 202121374884.9. It is composed of a transition layer and an abrasive layer as an integrally formed structure. The transition layer is a ceramic green silicon carbide layer, and the abrasive layer is a ceramic CBN layer. The thickness of the transition layer is the same as the thickness of the abrasive layer (ceramic CBN layer), and the width of the transition layer is 1.4 times the width of the ceramic CBN layer.

[0029] When installing the embedded transition layer ceramic CBN circular arc grinding wheel according to the present invention, first press the positioning block 8 to retract it into the extrusion groove 7. At this time, the positioning block 8 squeezes the extrusion spring 9, and then the guide groove 16 on the embedded ring 4 is inserted into the embedded groove 2 along the guide column 15. At this time, the reaction force of the extrusion spring 9 pushes the positioning block 8 to snap into the positioning groove 6 of the embedded ring 4, and then squeeze the clamping piece 18, and snap the clamping groove 19 on the cover 11 along the clamping piece 18. At this time, the auxiliary groove 17 on the cover 11 is snapped with the guide column 15, so that the clamping position of the double-layer abrasive ring body 5 can be reinforced, and the double-layer abrasive ring body 5 can be quickly installed, and the operation is simple. Then, the transmission port on the base wheel 1 is inserted into the output end of the external drive device, and the external screw is inserted. The bolt connects the flange at the output end of the external drive device with the fixing hole 3. At this time, the external bolt can pass through the fastening hole 14, so that the position of the slider 13 can be positioned synchronously, thereby avoiding the shaking of the positioning block 8, thereby improving the stability of the double-layer abrasive ring body 5 during use. When the double-layer abrasive ring body 5 needs to be replaced, first loosen the external bolt and remove the base wheel 1 from the output end of the external drive device, then squeeze the clamping piece 18, and then pull out the cover 11, then pull the pull block to drive the slider 13 to slide toward the transmission port, pull the positioning block 8 out of the positioning groove 6 through the connecting column 12, and then pull out the embedded ring 4 to complete its quick disassembly, and then perform the above installation operation to replace the new double-layer abrasive ring body 5.

Claims

1. An easily installed embedded transition layer ceramic CBN circular arc grinding wheel, comprising a base wheel (1), characterized in that: The surface of the base wheel (1) is provided with an embedding groove (2), the center of the base wheel (1) is provided with a transmission opening, the surface of the base wheel (1) is provided with four fixing holes (3), and the four fixing holes (3) are evenly arranged in a ring shape with the transmission opening as the center, the inner wall of the embedding groove (2) is clamped with an embedding ring (4), the surface of the embedding ring (4) is fixedly connected with a double-layer abrasive ring body (5), the inner wall of the embedding ring (4) is provided with four positioning grooves (6), and the positions of the four positioning grooves (6) correspond to the four fixing holes (3) one by one. The inner wall of the base wheel (1) is provided with four extrusion grooves (7), and the four extrusion grooves (7) are evenly arranged in a ring shape. A positioning block (8) is slidably connected to the interior of the extrusion groove (7), and the positioning block (8) is slidably connected to the extrusion groove (7) and is arranged in a relative and sound-matched manner with the positioning groove (6). An extrusion spring (9) is fixedly connected to the surface of the positioning block (8). A fixing groove (10) is provided on the surface of the base wheel (1), and a sealing cover (11) is clamped on the surface of the fixing groove (10), and the sealing cover (11) is arranged in a relative and sound-matched manner with the embedded ring (4).

2. The easily installed embedded transition layer ceramic CBN circular arc grinding wheel according to claim 1, characterized in that: The groove wall of the extrusion groove (7) is provided with a sliding opening, and the sliding opening is communicated with the fixing hole (3); the other side of the positioning block (8) is fixedly connected with a connecting column (12); the other end of the connecting column (12) is fixedly connected with a slider (13), and the slider (13) is slidably connected to the sliding opening; the top of the slider (13) is provided with a fastening hole (14), and the fastening hole (14) and the fixing hole (3) are arranged to be relatively matched.

3. The easily installed embedded transition layer ceramic CBN circular arc grinding wheel according to claim 2, characterized in that: The side of the slider (13) away from the positioning block (8) is arranged in an arc shape, and a groove is provided on the side of the slider (13) away from the positioning block (8), and a pull block is fixedly connected inside the groove.

4. The easily installed embedded transition layer ceramic CBN circular arc grinding wheel according to claim 3, characterized in that: Four guide posts (15) are fixedly connected to the groove wall of the embedding groove (2), and the four guide posts (15) are evenly arranged in a ring shape. Four guide grooves (16) are opened on the inner wall of the embedding ring (4), and the four guide grooves (16) are respectively slidably connected to the four guide posts (15).

5. The easily installed embedded transition layer ceramic CBN circular arc grinding wheel according to claim 4, characterized in that: Four auxiliary grooves (17) are formed on the inner wall of the cover (11), and the four auxiliary grooves (17) are slidably connected to the four guide posts (15) respectively.

6. An easily installed embedded transition layer ceramic CBN circular arc grinding wheel according to claim 1, 2 or 5, characterized in that: Four clamping members (18) are fixedly connected to the surface of the fixing groove (10), and the four clamping members (18) are evenly arranged in a ring shape. Four clamping grooves (19) are opened on the surface of the sealing cover (11), and the four clamping grooves (19) are in a one-to-one correspondence with the four clamping members (18).

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