A grinding wheel manufacturing device

Abstract

The application discloses a grinding wheel preparation device, which comprises a preparation machine box and a sealing plate one slidably and sealingly installed in the preparation machine box. The sealing plate one defines a sealing chamber in the preparation machine box, which can be isolated from the outside. The sealing chamber can be connected with a high-pressure gas source through a gas inlet pipe two. A grinding wheel seat is rotatably installed in the sealing chamber. A sintering device is arranged on the grinding wheel seat. A material spraying device is arranged on the sintering device. The grinding wheel preparation device prints a grinding wheel blank under normal pressure and sinter the grinding wheel blank under high pressure. Two sintered grinding wheel halves are welded together to form a grinding wheel with high mechanical strength. The grinding wheel has two layers of hard filter screen plates, which not only makes the grinding wheel have large mechanical strength, but also makes the abrasive bonding firm and not easy to separate, thereby prolonging the service life of the grinding wheel.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of grinding wheel production, in particular to a grinding wheel preparation device. BACKGROUND

[0002] Currently, the conventional technology for grinding wheel production and manufacturing is to first stir and mix abrasive and binder, then flatten and press into a grinding wheel blank in a mold, and finally sinter the grinding wheel blank to obtain a grinding wheel. This method is complicated and requires heavy human involvement, and the grinding wheel production efficiency is not high. For example, the abrasive and binder need to be stirred and mixed for a certain period of time, and then the blank is flattened and pressed into a grinding wheel blank in a mold by manual operation, and the grinding wheel blank is manually transferred to a calcining device for sintering. Manual assistance is required between adjacent steps, which is time-consuming and labor-intensive. Moreover, the grinding wheel blank is easily damaged during the process of manually transferring it to the calcining device for sintering.

[0003] In addition, there is also a method of using 3D printing technology to produce and manufacture grinding wheels. The 3D printing technology is used to first print a grinding wheel blank, and then directly sinter it, thereby eliminating the steps of stirring and mixing the abrasive and binder for a certain period of time and transferring the grinding wheel blank to the calcining device for sintering. This method improves the grinding wheel production efficiency to some extent, but the strength of the grinding wheel manufactured by this method is generally low, and the grinding wheel is prone to breakage during use. Therefore, this method cannot become the conventional mainstream technology for grinding wheel production and manufacturing. SUMMARY

[0004] The main purpose of the present application is to provide a grinding wheel preparation device to solve the problems of low grinding wheel production efficiency and low strength of grinding wheels manufactured by 3D printing.

[0005] To solve the above problems, the present application provides a grinding wheel preparation device, which comprises a preparation machine box and a sealing plate one slidingly and sealingly installed in the preparation machine box. The sealing plate one defines a sealing chamber in the preparation machine box, which can be isolated from the outside. The sealing chamber can be connected to a high-pressure gas source through an air inlet pipe two. A grinding wheel seat is rotatably installed in the sealing chamber. A sintering device is provided on the grinding wheel seat. A material spraying device is provided on the sintering device.

[0006] The grinding wheel seat comprises:

[0007] A seat ring is rotatably connected to the preparation machine box through a rotating shaft.

[0008] An installation ring is rotatably connected to the seat ring. A plurality of connecting rods are provided on the inner wall of the installation ring. The connecting rods are used to support hard filter screen plates of different diameters. A plurality of fan blades are uniformly distributed on the installation ring in the circumferential direction.

[0009] A gas blowing pipe two is provided to blow gas to the fan blades to drive the installation ring to rotate.

[0010] The sintering device comprises:

[0011] U-shaped gas box, two ends of which are respectively arranged on the upper and lower sides of the mounting ring and are fixedly connected with the mounting ring;

[0012] Oxygen-fuel gun, located on the upper and lower sides of the mounting ring and communicated with the U-shaped gas box, the number of the oxygen-fuel gun is multiple, and the oxygen-fuel gun is arranged in a linear array on the upper and lower sides of the mounting ring, thereby forming a linear sintering operation line, the sintering operation line passes the center of the mounting ring, and the length of the sintering operation line is not less than the radius of the mounting ring, and the oxygen-fuel gun is provided with a control valve I and an igniter;

[0013] The spraying device comprises an abrasive box and an adhesive box, the abrasive box and the adhesive box are fixedly connected with the U-shaped gas box, the abrasive box and the adhesive box are located above the mounting ring, and a plurality of nozzles in a linear array are arranged on the abrasive box and the adhesive box, when the hard filter screen plate is placed on the plurality of connecting rods, the plurality of nozzles on the abrasive box and the adhesive box can spray a spraying operation line on the hard filter screen plate, the two spraying operation lines are equal in length and coincide with each other, the spraying operation line passes the center of the mounting ring, the length of the spraying operation line is not less than the radius of the mounting ring, and the nozzle is provided with a control valve II.

[0014] In an embodiment, the U-shaped gas box is communicated with a high-pressure fuel gas source through a metal hose I, the abrasive box and the adhesive box are respectively communicated with an abrasive source and an adhesive source through a metal hose II, and the metal hose I and the metal hose II extend out of the preparation box and are sealingly connected with the preparation box.

[0015] In an embodiment, an installation groove is arranged on the outer wall of the preparation box, a feeding port communicated with a sealing chamber is arranged on the installation groove, the feeding port is in the same height as the horizontal mounting ring, and the hard filter screen plate can enter the sealing chamber through the feeding port and be placed on the plurality of connecting rods;

[0016] A sealing plate II is slidingly and sealingly arranged in the installation groove, and the sealing plate II can slidingly block the feeding port.

[0017] In an embodiment, a conveying device is further arranged to convey the hard filter screen plate to the feeding port.

[0018] In an embodiment, a feeding device is further arranged to pick up the hard filter screen plate on the conveying device at the feeding port and place the hard filter screen plate on the plurality of connecting rods through the feeding port.

[0019] The feeding device comprises a lifting device II and a push-pull device II connected with the lifting device II, the push-pull device II is lifted by the lifting device II, the push-pull device II is connected with an electromagnet, the electromagnet can adsorb the hard filter screen plate, and the push-pull device II can drive the electromagnet and the hard filter screen plate adsorbed by the electromagnet to enter the sealing chamber through the feeding port and move horizontally to the top of the mounting ring.

[0020] In an embodiment, a fan is installed on the rotating shaft, a blowing pipe I is arranged on the preparation box, and the blowing pipe I can blow air to drive the fan to rotate the rotating shaft. One end of the blowing pipe I and the blowing pipe II are extended out of the preparation box and are sealingly connected with the preparation box.

[0021] In an embodiment, a pair of flat pushing devices I are symmetrically arranged on the opposite inner walls in the preparation box.

[0022] A pair of flat pushing devices I are symmetrically arranged on the opposite inner walls in the preparation box.

[0023] At least two photoelectric sensors are arranged below the flat pushing device I, and a plurality of photoelectric sensors are arranged in a straight line in the vertical direction.

[0024] A visual camera is arranged for shooting the image of the sand wheel half.

[0025] In an embodiment, a plurality of shaping rods are arranged below the photoelectric sensor in the preparation box.

[0026] A plurality of shaping rods are arranged in a central symmetry around the mounting ring, and the shaping rods are arranged vertically.

[0027] A flat pushing device II is arranged for moving the plurality of shaping rods to the center axis of the mounting ring.

[0028] In an embodiment, the sand wheel preparation device further comprises an eddy current welding mechanism for welding two hard filter screen plates together.

[0029] The eddy current welding mechanism comprises:

[0030] A mounting frame II is arranged for lifting and lowering a heat insulation cover.

[0031] An inductance coil is arranged in the heat insulation cover.

[0032] A pressing device is arranged on the top of the heat insulation cover, the pressing device is connected with a heat insulation pressing plate, the heat insulation pressing plate can penetrate the top of the heat insulation cover under the pushing of the pressing device, and the heat insulation pressing plate is slidingly and sealingly connected with the heat insulation cover.

[0033] In an embodiment, a moving trolley is arranged in the heat insulation cover, a plurality of sand wheel pieces can be stacked on the moving trolley, a box door is arranged on the bottom of the preparation box, and the moving trolley can enter and exit the preparation box through the box door.

[0034] When the moving trolley enters the preparation box, the mounting ring can rotate to make the sand wheel pieces fall and be placed flat on the moving trolley, and the plurality of shaping rods can move to the center axis of the mounting ring to move the plurality of sand wheel pieces stacked on the moving trolley to the same axis.

[0035] Beneficial effects: the grinding wheel preparation device of the present application prints out grinding wheel blanks under normal pressure, sintering the grinding wheel blanks under high pressure, and welding the two sintered grinding wheel halves into one to form a grinding wheel with high mechanical strength. The grinding wheel has two layers of hard filter screen plates, which not only makes the grinding wheel have greater mechanical strength, but also makes the abrasive bonding firm and not easy to separate, prolonging the service life of the grinding wheel.

[0036] The grinding wheel preparation device of the present application does not need to spend time on stirring and mixing the abrasive and the binder, and does not need to move the grinding wheel blanks to the calcining equipment for sintering, and can weld multiple grinding wheel halves at a time, so it has high grinding wheel production efficiency. The grinding wheel preparation device of the present application has high grinding wheel production efficiency and high grinding wheel strength. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0038] Figure 1 is a structure diagram of a grinding wheel preparation device of the present application Figure 1 ;

[0039] Figure 2 is a structure diagram of a grinding wheel preparation device of the present application Figure 2 ;

[0040] Figure 3 is a structure diagram of a grinding wheel preparation device of the present application Figure 3 ;

[0041] Figure 4 is a structure diagram of a grinding wheel preparation device of the present application

[0042] Figure 5 is a layout diagram of the conveying device, the feeding device and the preparation machine box of the present application

[0043] Figure 6 is a structure diagram of the grinding wheel seat, the sintering equipment and the material spraying equipment of the present application

[0044] Figure 7 is a structure diagram of the vortex welding mechanism of the present application

[0045] Figure 8 is an internal structure diagram of the vortex welding mechanism and the preparation machine box of the present application

[0046] Figure 9 is a schematic diagram of the position of the mobile trolley in the preparation machine box of the present application;

[0047] Figure 10 is Figure 8 A enlarged view of A in

[0048] The reference signs are explained as follows:

[0049] 1, preparation machine box; 2, baffle; 3, sealing plate one; 4, sealing chamber; 5, feeding port; 6, mounting groove; 7, sealing plate two; 8, lifting device one; 9, rotating shaft one; 10, fan; 11, blowing pipe one; 12, seat ring; 13, blocking ring; 14, mounting ring one; 15, mounting ring two; 16, fan blade; 17, blowing pipe two; 18, connecting rod; 19, connecting block; 20, U-shaped air box; 21, rotating shaft two; 22, oxygen-fuel gun; 23, igniter; 24, air inlet pipe one; 25, abrasive box; 26, adhesive box; 27, nozzle; 28, feeding pipe; 29, air inlet pipe two; 30, push-pull device one; 31, mounting frame one; 32, flat pushing device one; 33, photoelectric sensor; 34, shaping rod; 35, flat pushing device two; 36, box door opening; 37, conveying device; 38, lifting device two; 39, push-pull device two; 40, electromagnet; 41, hard filter screen plate; 42, mounting frame two; 43, driving motor; 44, screw rod; 45, heat insulation cover; 46, mounting frame three; 47, pressing device; 48, heat insulation pressing plate; 49, inductor coil; 50, heat insulation cylinder; 51, mobile trolley; 52, grinding wheel piece; 53, visual camera. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0051] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0052] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing", and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In addition, if the present application involves "first", "second" and the like in the description, the "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0054] The present application provides a grinding wheel preparation device, which prints a grinding wheel blank under normal pressure, sintering the grinding wheel blank under high pressure, and welding two sintered grinding wheel halves into one to form a grinding wheel with high mechanical strength. This grinding wheel has two layers of hard filter screen plates 41, which not only make the grinding wheel have greater mechanical strength, but also make the abrasive bonding firm and not easy to separate, prolonging the service life of the grinding wheel.

[0055] Specifically, in one embodiment of the application, as shown in Figures 1-4 The grinding wheel preparation device includes a preparation machine box 1 and a sealing plate one 3 slidingly and sealingly installed in the preparation machine box 1. The sealing plate one 3 defines a sealing chamber 4 that can be isolated from the outside in the preparation machine box 1. The preparation machine box 1 is composed of multiple baffles 2 that are sealed and spliced together. The outer wall of the preparation machine box 1 is fixedly provided with a mounting bracket one 31. The mounting bracket one 31 is provided with a push-pull device one 30. The push-pull device one 30 is connected to the sealing plate one 3. The sealing plate one 3 is driven to slide by the push-pull device one 30 to isolate or communicate the sealing chamber 4 with the outside.

[0056] In the present embodiment, as shown in Figure 1 and Figure 4As shown, the sealing chamber 4 can be communicated with a high-pressure air source through the air inlet pipe two 29, and specifically, the high-pressure air source can be an air pump. The air inlet pipe two 29 is provided with a control valve and a gas release valve. When the push-pull device one 30 drives the sealing plate one 3 to slide to make the sealing chamber 4 not communicated with the space below the sealing plate one 3 in the preparation box 1, the control valve is opened, the high-pressure air at the high-pressure air source is injected into the sealing chamber 4 through the air inlet pipe two 29, so that a high-pressure environment is formed in the sealing chamber 4. The control valve is closed, the gas release valve is opened, the high-pressure air in the sealing chamber 4 is discharged, and after the air pressure in the sealing chamber 4 is lowered to normal pressure, the push-pull device one 30 is controlled to drive the sealing plate one 3 to slide to make the sealing chamber 4 communicated with the space below the sealing plate one 3 in the preparation box 1.

[0057] In the embodiment, as shown in Figures 4-6 、 Figure 8 , a grinding wheel seat is rotatably installed in the sealing chamber 4, and a sintering device is arranged on the grinding wheel seat, and a material spraying device is arranged on the sintering device.

[0058] Specifically, as shown in Figure 6 , the grinding wheel seat comprises a seat ring 12, a mounting ring, and an air blowing pipe two 17. As shown in Figures 4-6 、 Figure 8 , the seat ring 12 is rotatably connected with the preparation box 1 through a rotating shaft one 9. The mounting ring is rotatably connected with the seat ring 12. A plurality of connecting rods 18 are arranged on the inner wall of the mounting ring, and the connecting rods 18 are used for supporting hard filter screen plates 41 with different diameters. A plurality of fan blades 16 are uniformly distributed on the mounting ring in the circumferential direction. The air blowing pipe two 17 can blow air to the fan blades 16 to drive the mounting ring to rotate.

[0059] Further, in order to facilitate the mounting ring and the seat ring 12 to be disassembled and assembled, and the large-size fan blades 16 to be arranged, as shown in Figures 4-6 、 Figure 8 、 Figure 10 , the mounting ring comprises a mounting ring one 14 and a mounting ring two 15. The top surface and the outer side surface of the mounting ring one 14 are tightly rotatable with the inner side surface of the seat ring 12. As shown in Figure 8 、 Figure 10 , the lower end of the seat ring 12 is coaxially and detachably fixedly installed with a blocking ring 13. The part of the lower end surface of the mounting ring one 14 is tightly rotatable with the upper end surface of the blocking ring 13. In this way, the mounting ring one 14 can be supported and installed on the inner side surface of the seat ring 12 through the blocking ring 13, and the mounting ring one 14 can only rotate. The mounting ring two 15 is detachably fixedly connected with the part of the lower end surface of the mounting ring one 14. The fan blades 16 are arranged on the lower surface of the mounting ring two 15.

[0060] In the embodiment, as shown in Figures 4-6 、 Figure 8As shown in the figure, the inner wall of the mounting ring one 14 is provided with a plurality of connecting rods 18, preferably, the plurality of connecting rods 18 extend along the radial direction of the mounting ring one 14, which is designed to facilitate the plurality of connecting rods 18 to support hard filter screen plates 41 of different diameters.

[0061] Preferably, the hard filter screen plate 41 can be made of iron or iron-based alloy, which is designed to be low in cost and capable of being attracted by the electromagnet 40.

[0062] In this embodiment, the hard filter screen plate 41 placed horizontally on the plurality of connecting rods 18 is circular and coaxial with the mounting ring one 14.

[0063] In this embodiment, as shown in the figure, Figure 1 and Figure 4 , one end of the blowing pipe two 17 extends out of the preparation case 1 and is sealingly connected with the preparation case 1, and air is blown into the blowing pipe two 17 by an external air pump to drive the fan blade 16 to rotate the mounting ring, and then drive the hard filter screen plate 41 placed on the plurality of connecting rods 18 to rotate.

[0064] Specifically, as shown in the figure, Figures 4-6 , Figure 8 , the sintering device includes a U-shaped gas box 20 and an oxygen-fuel gun 22, the U-shaped gas box 20 is fixedly connected with the race 12 through the connecting block 19, and the U-shaped gas box 20 is rotatably connected with the preparation case 1 through the second rotating shaft 21, the second rotating shaft 21 is coaxial with the first rotating shaft 9, and the two ends of the U-shaped gas box 20 are arranged on the upper and lower sides of the mounting ring, and the oxygen-fuel gun 22 is located on the upper and lower sides of the mounting ring and communicates with the U-shaped gas box 20, which is designed to simultaneously spray the hard filter screen plate 41 from the upper and lower sides of the plurality of hard filter screen plates 41 placed on the plurality of connecting rods 18 to sinter the abrasive, the binder on the hard filter screen plate 41 and the hard filter screen plate 41 together to form a grinding wheel half, and simultaneously spraying the hard filter screen plate 41 from the upper and lower sides of the hard filter screen plate 41 helps to speed up the sintering speed and improve the grinding wheel production efficiency.

[0065] In this embodiment, as shown in the figure, Figures 4-6 , Figure 8 , the number of oxygen-fuel guns 22 is multiple, and they are arranged in a straight line on the upper and lower sides of the mounting ring, thereby forming a straight-line sintering operation line, the sintering operation line passes through the center of the mounting ring one 14, and the length of the sintering operation line is not less than the radius of the mounting ring one 14, which is designed to ensure that the abrasive and the binder on the hard filter screen plate 41 are sintered completely.

[0066] In this embodiment, as shown in the figure, Figures 4-6 , Figure 8As shown in the figure, the oxygen-fuel gun 22 is provided with a control valve I and an igniter 23, the control valve I is used to control the fuel gas in the U-shaped gas box 20 into the oxygen-fuel gun 22, and the igniter 23 is used to ignite the oxygen-fuel gun 22, so as to realize the automatic ignition of the oxygen-fuel gun 22.

[0067] In this embodiment, the number of oxygen-fuel guns 22 participating in the sintering operation should be determined according to the diameter of the hard filter screen plate 41, and those oxygen-fuel guns 22 not participating in the sintering operation are prevented from leaking fuel gas by closing the control valve I, and the oxygen-fuel guns 22 participating in the sintering operation are opened by opening the control valve I and the igniter 23.

[0068] In this embodiment, as shown in the figure, Figure 6 The U-shaped gas box 20 is provided with an air inlet pipe I 24, which is connected to an external fuel gas source through a metal hose I. The fuel gas source is a high-pressure gas source, and the connection of the metal hose I / metal bellows does not affect the rotation of the sintering equipment with the grinding wheel seat. Generally, the metal hose I should also be provided with a control valve to control the air charging into the U-shaped gas box 20.

[0069] Specifically, as shown in the figure, Figures 4-6 , Figure 8 The material spraying equipment includes an abrasive box 25 and an adhesive box 26. The abrasive box 25 contains powdered abrasive, and the adhesive box 26 contains paste-like inorganic ceramic adhesive. The inorganic ceramic adhesive is resistant to high temperature, which does not affect the subsequent eddy current welding of two pieces of hard filter screen plate 41.

[0070] In this embodiment, as shown in the figure, Figure 6 The abrasive box 25 and the adhesive box 26 are provided with a feeding pipe 28, which is connected to an external abrasive source and an adhesive source through a metal hose II. The external abrasive source uses a metal hose II to inject powdered abrasive into the abrasive box 25, and the adhesive source uses another metal hose II to inject paste-like inorganic ceramic adhesive into the adhesive box 26. Therefore, the metal hose II also needs to be provided with a delivery pump to realize the smooth injection of powdered abrasive into the abrasive box 25 and the injection of paste-like inorganic ceramic adhesive into the adhesive box 26. The metal hose II does not affect the rotation of the material spraying equipment with the grinding wheel seat.

[0071] In this embodiment, as shown in the figure, Figure 6As shown, the abrasive box 25 and the adhesive box 26 are fixedly connected with the U-shaped air box 20, and are located above the mounting ring, and a plurality of nozzles 27 in a linear arrangement are arranged on the abrasive box 25 and the adhesive box 26, when the hard filter screen plate 41 is placed on the plurality of connecting rods 18, the plurality of nozzles 27 on the abrasive box 25 and the adhesive box 26 can spray a spraying operation line on the hard filter screen plate 41, and the spraying operation line sprayed by the plurality of nozzles 27 on the abrasive box 25 is equal in length to and coincides with the spraying operation line sprayed by the plurality of nozzles 27 on the adhesive box 26, so that the abrasive and the inorganic ceramic adhesive can be uniformly adhered to each other and the abrasive and the hard filter screen plate 41 can be adhered to each other, the spraying operation line passes through the center of the mounting ring 14, and the length of the spraying operation line is not less than the radius of the mounting ring 14, so that the hard filter screen plate 41 with different diameters can be completely covered by the abrasive and the adhesive.

[0072] In the embodiment, in the process of spraying the abrasive and the inorganic ceramic adhesive to the same position on the hard filter screen plate 41 by the nozzles 27, the airflow in the aerosol-shaped abrasive and inorganic ceramic adhesive sprayed by the nozzles 27 passes through the hard filter screen plate 41, and the abrasive particles and the inorganic ceramic adhesive particles are filtered by the hard filter screen plate 41 and remain on the upper surface of the hard filter screen plate 41, the adjacent abrasive particles are adhered together by the inorganic ceramic adhesive particles, and the abrasive particles are adhered to the hard filter screen plate 41 by the inorganic ceramic adhesive particles, so that the airflow in the aerosol-shaped abrasive and inorganic ceramic adhesive sprayed by the nozzles 27 can pass through the hard filter screen plate 41 without changing the direction, the airflow disturbance can avoid affecting the flow direction of the abrasive particles and the inorganic ceramic adhesive particles, the abrasive particles can be uniformly sprayed on the hard filter screen plate 41, the spraying thickness is uniform and consistent, the spraying quality is high, and the spraying effect is good.

[0073] The grinding wheel piece 52 prepared by the grinding wheel preparation device of the application uses the hard filter screen plate 41 as a base material, filters the aerosol-shaped abrasive and inorganic ceramic adhesive sprayed by the nozzles 27, and the airflow can smoothly pass through the hard filter screen plate 41 without changing the flow direction, so that the abrasive particles and the inorganic ceramic adhesive particles can be uniformly sprayed on the hard filter screen plate 41, the spraying thickness is uniform and consistent, the spraying quality is high, the spraying effect is good, the quality of the grinding wheel piece 52 is improved, the strength of the grinding wheel piece 52 is enhanced by using the hard filter screen plate 41 as a base material, and the service life of the grinding wheel piece 52 is prolonged.

[0074] In the embodiment, the nozzle 27 is provided with a control valve II, so as to control different nozzles 27 to participate in the spraying operation according to the requirement, and the number of the nozzles 27 participating in the spraying operation should be determined according to the diameter of the abrasive wheel piece 52. When the control valve II is opened, the nozzle 27 can spray the abrasive particles and the inorganic ceramic binder particles, and when the control valve is closed, the nozzle 27 stops spraying.

[0075] In the embodiment, during the process that the material spraying device sprays the abrasive particles and the inorganic ceramic binder particles on the hard filter screen plate 41, the hard filter screen plate 41 is driven to rotate synchronously by the mounting ring, so as to uniformly spray the whole hard filter screen plate 41.

[0076] In the embodiment, one end of the metal hose I and the metal hose II extends out of the preparation box 1 and is sealingly connected with the preparation box 1. In this way, the design can prevent the sealed chamber 4 from leaking.

[0077] In the embodiment, during the process that the material spraying device sprays the abrasive particles and the inorganic ceramic binder particles on the hard filter screen plate 41, the sealed chamber 4 is in a normal pressure environment. After the spraying is completed, the sealed chamber 4 is raised to a high pressure environment. The high pressure is used to reduce the gap between the abrasive particles and make the abrasive particles more densely arranged, so as to enhance the strength of the abrasive wheel and make it not easy to break. Then, the abrasive wheel blank is sintered in the high pressure environment to obtain the abrasive wheel half piece. After the sintering is completed, the sealed chamber 4 is restored to the normal pressure environment.

[0078] In the embodiment, as shown in Figures 1-4 the outer wall of the preparation box 1 is provided with a mounting groove 6. The mounting groove 6 is provided with a feeding port 5 which is in communication with the sealed chamber 4. The feeding port 5 is in the same height with the mounting ring. The hard filter screen plate 41 can enter the sealed chamber 4 through the feeding port 5 and be placed on the plurality of connecting rods 18. The mounting groove 6 is slidingly and sealingly provided with a sealing plate II 7. The sealing plate II 7 is connected with a lifting device I 8. The lifting device I 8 pushes the sealing plate II 7 to slide and block the feeding port 5, so as to prevent the sealed chamber 4 from leaking. When the hard filter screen plate 41 needs to be placed on the connecting rod 18, the feeding port 5 is opened. After the feeding is completed, the feeding port 5 is blocked again.

[0079] Further, in order to improve the production efficiency of the abrasive wheel, the abrasive wheel preparation device further comprises a conveying device 37 and a feeding device. As shown in Figure 5 the conveying device 37 is used to convey the hard filter screen plate 41 to the feeding port 5. The common conveying device 37 is a belt conveyor. The feeding device is used to pick up the hard filter screen plate 41 conveyed by the conveying device 37 at the feeding port 5 and place the hard filter screen plate 41 on the plurality of connecting rods 18 through the feeding port 5.

[0080] Specifically, as shown in Figure 5As shown, the feeding device comprises lifting device two 38 and push-pull device two 39 connected with lifting device two 38, lifting device two 38 drives push-pull device two 39 to lift, push-pull device two 39 is connected with electromagnet 40, electromagnet 40 can adsorb hard filter screen plate 41, push-pull device two 39 can drive electromagnet 40 and the hard filter screen plate 41 adsorbed by electromagnet 40 to translate into the sealed chamber 4 through the feeding port 5 and move to the top of the mounting ring, then lifting device two 38 drives push-pull device two 39 to descend, that is, hard filter screen plate 41 can be placed on the plurality of connecting rods 18, thus designed, realizing the full-automatic operation of hard filter screen plate 41 feeding, significantly improving the grinding wheel production efficiency.

[0081] The grinding wheel preparation device of the embodiment is beneficial to directly spraying abrasive particles and inorganic ceramic binder particles on the same place on the hard filter screen plate 41 by the nozzle 27, the abrasive particles are connected with the hard filter screen plate 41 by the inorganic ceramic binder particles, and the adjacent abrasive particles are also connected with each other by the inorganic ceramic binder particles, so that high-quality grinding wheel blanks can be obtained by cooperating with the uniform rotation of the hard filter screen plate 41, and grinding wheel halves can be obtained after sintering, the normal pressure / high pressure environment in the sealed chamber 4 is automatically switched by the computer control valve action opening and closing the air inlet pipe two 29, without manual assistance, and the full-automatic feeding of the hard filter screen plate 41 is assisted, without the steps of stirring and mixing abrasive and binder for a certain period of time and moving the grinding wheel blank to the calcining equipment for sintering, so that the grinding wheel production efficiency is significantly improved, and the quality and strength of the grinding wheel piece 52 are improved.

[0082] Further, in order to ensure that the sealed chamber 4 is well sealed and avoid the sealed chamber 4 not being tightly sealed due to the power take-off of the shaft one 9 and the shaft two 21 extending out of the sealed chamber 4, the shaft one 9 and the shaft two 21 can not extend out of the sealed chamber 4, at this time, the fan 10 is beneficial to driving the shaft one 9 and the shaft two 21 to rotate, as shown in Figures 4-6 、 Figure 8 As shown, the shaft one 9 is provided with the fan 10, and the preparation machine box 1 is provided with the air blowing pipe one 11, the air blowing pipe one 11 can blow air to drive the fan 10 to drive the shaft one 9 and the shaft two 21 to rotate, and then drive the grinding wheel seat to rotate to make the grinding wheel halves on the plurality of connecting rods 18 away from the grinding wheel seat.

[0083] In the embodiment, one end of the air blowing pipe one 11 and the air blowing pipe two 17 extends out of the preparation machine box 1 and is sealingly connected with the preparation machine box 1, which is designed to prevent air leakage of the sealed chamber 4 and ensure the sealing performance of the sealed chamber 4, and the air blowing pipe one 11 and the air blowing pipe two 17 should be provided with control valves to control the air blowing pipe one 11 and the air blowing pipe two 17 to be connected or disconnected, and then control the fan 10 and the fan blade 16 to rotate.

[0084] Further, the shaft two 21 is sleeved with a reset torsion spring, when the air pipe one 11 stops blowing, the grinding wheel seat is reset to be horizontal under the driving of the reset torsion spring, and waits for the next hard filter screen plate 41 to be placed on the plurality of connecting rods 18, when the air pipe one 11 blows air to drive the fan 10 to drive the shaft one 9 and the shaft two 21 to rotate, the reset torsion spring is compressed.

[0085] In the embodiment, as shown in Figures 1-4 、 Figure 8 , a pair of flat pushing devices one 32 and at least two photoelectric sensors 33 and a visual camera 53 are arranged below the sealing plate one 3 in the preparation case 1, the pair of flat pushing devices one 32 are symmetrically arranged on the opposite two inner walls in the preparation case 1, the at least two photoelectric sensors 33 are below the flat pushing devices one 32, and the plurality of photoelectric sensors 33 are arranged in a linear type along the vertical direction, so that after the sintering is completed, when the sealing chamber 4 returns to the normal pressure, the control pushing and pulling device one 30 drives the sealing plate one 3 to move to leave the installation ring directly below, then the grinding wheel seat is controlled to rotate to make the grinding wheel half pieces on the plurality of connecting rods 18 leave the grinding wheel seat, the grinding wheel half pieces are free falling in the preparation case 1, when the grinding wheel half pieces pass through the visual camera 53, the visual camera 53 shoots the image of the grinding wheel half pieces and sends to the computer for analysis and processing to obtain the position of the side of the exposed hard filter screen plate 41 on the grinding wheel half pieces, the plurality of photoelectric sensors 33 can detect the falling speed of the grinding wheel half pieces, and the grinding wheel half pieces are horizontally placed after falling to the ground, when the moving trolley 51 is arranged at the bottom of the preparation case 1 to receive the grinding wheel half pieces, the grinding wheel half pieces can be stacked and placed on the moving trolley 51, as shown in Figure 8 and Figure 9As shown, in order to realize welding of multiple sand wheel halves at one time, the side of the exposed hard filter screen plate 41 of the upper and lower adjacent two sand wheel halves should be in contact with each other or the side of the exposed hard filter screen plate 41 of the upper and lower adjacent two sand wheel halves should be away from each other, so the direction of the side of the exposed hard filter screen plate 41 of the upper and lower adjacent two sand wheel halves is opposite, and after the sand wheel halves on the connecting rods 18 are away from the sand wheel seat by the rotation of the sand wheel seat, the direction of the side of the exposed hard filter screen plate 41 of the sand wheel halves is fixed during the free falling of the sand wheel halves in the preparation box 1, so in order to obtain the technical effect that the direction of the side of the exposed hard filter screen plate 41 of the upper and lower adjacent two sand wheel halves is opposite, the vertically arranged sand wheel halves are detected by the multiple photoelectric sensors 33 during the free falling of the sand wheel halves in the preparation box 1, and then the corresponding flat pushing device one 32 is controlled to rapidly extend to impact the upper end of the vertically arranged sand wheel halves at the appropriate time according to the analysis result of the image captured by the visual camera 53, so that the sand wheel halves are tilted and no longer keep vertical, so that the required direction of the side of the exposed hard filter screen plate 41 can be obtained after the tilted sand wheel halves fall on the moving trolley 51, that is, the direction of the side of the exposed hard filter screen plate 41 of the upper and lower adjacent two sand wheel halves stacked on the moving trolley 51 is changed by the pair of flat pushing device one 32 alternately and one by one, so as to realize the technical effect that the direction of the side of the exposed hard filter screen plate 41 of the upper and lower adjacent two sand wheel halves stacked on the moving trolley 51 is opposite.

[0086] Further, as shown in Figures 1-4 、 Figure 9 , the preparation box 1 is provided with multiple shaping rods 34 and flat pushing device two 35 below the photoelectric sensor 33, the multiple shaping rods 34 are centrally symmetrically distributed around the mounting ring, and the shaping rods 34 are vertically arranged; the flat pushing device two 35 is connected with the preparation box 1 and the shaping rods 34, and is used to move the multiple shaping rods 34 to move close to or away from the central axis of the mounting ring, so as to move the multiple sand wheel pieces 52 stacked on the moving trolley 51 to the same axis, so that the multiple sand wheel pieces 52 are correctly stacked.

[0087] In this embodiment, as shown in Figure 7 and Figure 8 , the sand wheel preparation device further comprises an eddy current welding mechanism for welding two hard filter screen plates 41 together, so as to weld two sand wheel halves to form a sand wheel piece 52, so that the prepared sand wheel piece 52 has high mechanical strength and long service life.

[0088] Specifically, as shown in Figure 7 and Figure 8As shown, the eddy current welding mechanism comprises: a mounting frame two 42, an inductor coil 49, and a pressing device 47, the mounting frame two 42 is provided with a heat shield 45 which is installed up and down, such as the mounting frame two 42 is provided with a lead screw 44 and a driving motor 43 which drives the lead screw 44 to rotate, the heat shield 45 is connected with the lead screw 44 and is driven to rise and fall by the rotation of the lead screw 44; the inductor coil 49 is arranged in the heat shield 45, such as Figure 8 As shown, after the moving trolley 51 on which a plurality of stacked sand wheel halves are placed leaves the preparation box 1 and comes to the position directly below the heat shield 45, the heat shield 45 is controlled to be lowered to cover the moving trolley 51 on which a plurality of stacked sand wheel halves are placed, then the inductor coil 49 is started, the electromagnetic induction principle is used to form an electric eddy current in the hard filter screen plate 41 to heat the hard filter screen plate 41, the pressing device 47 is fixedly arranged on the top of the heat shield 45 through a mounting frame three 46, the pressing device 47 is connected with a heat insulation pressing plate 48, the heat insulation pressing plate 48 can be lifted and lowered through the top of the heat shield 45 under the pushing of the pressing device 47, the heat insulation pressing plate 48 is connected with the heat shield 45 in sliding sealing, after the hard filter screen plate 41 is heated to the welding temperature, the pressing device 47 is controlled to push the heat insulation pressing plate 48 to be lowered to extrude the plurality of stacked sand wheel halves on the moving trolley 51, so that two hard filter screen plates 41 which contact with each other are fused and bonded to be integrated, in this way, a plurality of sand wheel halves can be welded at one time, so the sand wheel production efficiency is high.

[0089] The sand wheel preparation device of the embodiment uses the moving trolley 51 to receive the sand wheel halves which fall from the sand wheel seat, and places the sand wheel halves in order, then sends the stacked sand wheel halves into the eddy current welding mechanism to perform eddy current welding, so that a plurality of sand wheel halves can be welded at one time, and the sand wheel production efficiency is high, correspondingly, the bottom of the preparation box 1 is provided with a box door 36, the moving trolley 51 can enter and exit the preparation box 1 through the box door 36; when the moving trolley 51 enters the preparation box 1, the mounting ring can make the sand wheel halves 52 on it fall and lie flat on the moving trolley 51, and the plurality of shaping rods 34 can move close to the central axis of the mounting ring to move the plurality of stacked sand wheel halves 52 on the moving trolley 51 to be coaxial.

[0090] Further, as shown in the figure, Figure 8 As shown, the heat shield 45 is provided with a heat insulation cylinder 50, and the inductor coil 49 is located between the outer wall of the heat insulation cylinder 50 and the inner wall of the heat shield 45, so that the inductor coil 49 can be effectively protected by the heat insulation cylinder 50.

[0091] The above merely describes the preferred embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structural changes made according to the content of the present application specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A grinding wheel preparation device, characterized in that: It includes a preparation chassis and a sealing plate 1 that is slidingly and sealingly installed in the preparation chassis. The sealing plate 1 defines a sealed chamber in the preparation chassis that can be isolated from the outside world. The sealed chamber can be connected to a high-pressure gas source through an air inlet pipe 2. A grinding wheel seat is rotatably installed in the sealed chamber. A sintering device is installed on the grinding wheel seat. A material spraying device is installed on the sintering device. The grinding wheel seat comprises: A seat ring, the seat ring being rotatably connected to the preparation chassis via a rotating shaft; A mounting ring is rotatably connected to the seat ring, and a plurality of connecting rods are provided on the inner wall of the mounting ring. The connecting rods are used to support hard filter plates of different diameters. A plurality of fan blades are evenly distributed along the circumference of the mounting ring; Blowing pipe 2, can blow air to the fan blades to drive the mounting ring to rotate; The sintering equipment includes: The U-shaped air box has two ends respectively provided with the upper and lower sides of the mounting ring and fixedly connected to the mounting ring; Oxygen combustion guns are located on the upper and lower sides of the mounting ring and are connected to the U-shaped gas box. There are multiple oxygen combustion guns, which are arranged in a straight line on the upper and lower sides of the mounting ring, thereby forming a straight line sintering operation line. The sintering operation line passes through the center of the mounting ring. The length of the sintering operation line is not less than the radius of the mounting ring. The oxygen combustion gun is provided with a control valve and an igniter. The spraying equipment includes an abrasive box and an adhesive box, which are both fixedly connected to the U-shaped air box and located above the mounting ring. The abrasive box and the adhesive box are both provided with a plurality of nozzles arranged in a straight line. When the hard filter plate is placed flat on a number of connecting rods, the plurality of nozzles on the abrasive box and the adhesive box can spray on the hard filter plate to form a spraying operation line. The two spraying operation lines are of equal length and overlap. The spraying operation line passes through the center of the mounting ring. The length of the spraying operation line is not less than the radius of the mounting ring. A control valve 2 is provided on the nozzle.

2. A grinding wheel preparation device according to claim 1, characterized in that: The U-shaped gas box is connected to the high-pressure gas source through a metal hose 1, and the abrasive box and the adhesive box are respectively connected to the abrasive source and the adhesive source through a metal hose 2. The metal hose 1 and the metal hose 2 extend out of the preparation chassis and are sealed and connected to the preparation chassis.

3. A grinding wheel preparation device according to claim 1, characterized in that: The outer wall of the preparation chassis is provided with a mounting groove, and the mounting groove is provided with a feed port connected to the sealed chamber. The feed port is flush with the horizontal mounting ring. The hard filter plate can enter the sealed chamber through the feed port and be placed flat on a plurality of connecting rods; A second sealing plate is installed in the installation groove for sliding sealing, and the second sealing plate can slide to block the feed port.

4. A grinding wheel preparation device according to claim 3, characterized in that: It also includes a conveying device for conveying the hard filter plate to the feed inlet.

5. A grinding wheel preparation device according to claim 4, characterized in that: It also includes a loading device for picking up the hard filter plate on the conveying device at the feed inlet and placing the hard filter plate on a plurality of connecting rods through the feed inlet; The feeding device includes a lifting device 2 and a push-pull device 2 connected to the lifting device 2. The lifting device 2 drives the push-pull device 2 to rise and fall. The push-pull device 2 is connected to an electromagnet, and the electromagnet can adsorb the hard filter mesh plate. The push-pull device 2 can drive the electromagnet and the hard filter mesh plate adsorbed by it into the sealed chamber through the feed port and translate to the top of the mounting ring.

6. A grinding wheel preparation device according to claim 1, characterized in that: A fan is installed on the rotating shaft, and an air blowing pipe 1 is provided on the preparation chassis. The air blowing pipe 1 can blow air to the fan to drive the fan to drive the rotating shaft to rotate. One end of the air blowing pipe 1 and the air blowing pipe 2 both extend out of the preparation chassis and are sealed and connected to the preparation chassis.

7. A grinding wheel preparation device according to claim 1, characterized in that: The preparation chassis is provided below the sealing plate 1 with: A pair of horizontal push devices are symmetrically arranged on two opposite inner walls of the preparation box; At least two photoelectric sensors are located below the horizontal pushing device 1, and the multiple photoelectric sensors are arranged in a straight line along the vertical direction; Vision camera for capturing images of the grinding wheel half.

8. A grinding wheel preparation device according to claim 7, characterized in that: The preparation chassis is provided below the photoelectric sensor with: A plurality of shaping rods are distributed symmetrically with the mounting ring as the center, and the shaping rods are arranged vertically; The second horizontal pushing device is connected to the preparation chassis and the shaping rods, and is used to push the multiple shaping rods to move closer to or away from the central axis of the installation ring.

9. A grinding wheel preparation device according to claim 8, characterized in that: Also included is an eddy current welding mechanism for welding two hard filter plates together; The eddy current welding mechanism comprises: A second mounting frame, on which a heat shield is installed in a lifting manner; an inductor coil disposed in the heat shield; The pressing device is arranged on the top of the heat insulation cover, and the pressing device is connected to the heat insulation pressing plate. The heat insulation pressing plate can penetrate the top of the heat insulation cover under the push of the pressing device. The heat insulation pressing plate is connected to the heat insulation cover in a sliding and sealing manner.

10. The grinding wheel preparation device according to claim 9, characterized in that: A movable trolley is provided in the heat insulation cover, and a plurality of grinding wheels can be stacked on the movable trolley. A box door is provided at the bottom of the preparation box, and the movable trolley can enter and exit the preparation box through the box door. When the mobile trolley enters the preparation machine box, the rotation of the mounting ring can cause the grinding wheel on it to fall and be placed flat on the mobile trolley. Multiple shaping rods move closer to the central axis of the mounting ring and can move multiple grinding wheels stacked on the mobile trolley to be coaxial.

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