High-adaptability polishing machining device for neodymium-iron-boron magnet production

Abstract

The invention belongs to the field of neodymium-iron-boron magnets, and particularly relates to a high-adaptability polishing machining device for neodymium-iron-boron magnet production. The base plate serves as a bearing carrier of the machining device, the supporting seat is fixedly connected to the base plate, the guide plate is fixedly connected to the top of the supporting seat, the guide plate is an arc guide plate, and one end of the guide plate is higher than the other end of the guide plate. The arc-shaped plate is installed on the top arc surface of the guide plate in a sliding mode, and the bottom of the inner arc surface of the arc-shaped plate is a plane. By replacing the driving roller and the grinding roller, the device can adapt to magnet blanks in different shapes (cylindrical and square) so as to meet the grinding requirements of the different blanks, the distance between the driving roller and the grinding roller can be accurately controlled in cooperation with an adjusting piece composed of a third motor, a coupler and a two-way lead screw, and the grinding efficiency is improved. And the equipment can process blanks of different sizes, and the stability and precision in the grinding process are ensured.

Description

Technical Field

[0001] The invention belongs to the field of NdFeB magnets, and in particular relates to a grinding and processing device for producing NdFeB magnets with strong adaptability. Background Art

[0002] NdFeB magnet is a high-performance permanent magnetic material, which is widely used in various fields, such as motors, generators, sensors, speakers, hard disk drives, etc. Due to its high magnetic energy product and strong coercive force, it has become an indispensable part of modern industry. However, in order to ensure that the performance of the final product matches the specification requirements, NdFeB magnet needs to go through a series of fine processing steps during the production process, including the grinding process.

[0003] After searching, the patent with the authorization announcement number CN115106858B discloses a NdFeB magnet grinding device, including a frame, a connecting plate is fixed on the frame, a hopper is fixed on the connecting plate, a support plate is fixed on the connecting plate in the hopper, and a push plate is arranged on the hopper on one side of the support plate; the NdFeB magnet grinding device grinds the outer surface and inner wall of the blank by a grinding roller and a support roller respectively, so as to realize the simultaneous grinding of the outer wall and the inner wall of the blank, but the grinding device still has certain limitations when used. Specifically, since it is mainly used for cylindrical blanks, the grinding device is not suitable for cylindrical blanks. The outer and inner circles of the magnet are ground, but there is no mention of how to deal with other common grinding requirements, such as flatness grinding, end face grinding, etc. Therefore, in actual applications, other special equipment may be required to complete the entire grinding process, increasing the complexity and cost of the operation. In addition, when the support roller grinds the inner wall of the blank, tolerances are easily generated due to the direct use of mechanical contact grinding. Especially when the blank material is hard or the shape is complex, the friction between the support roller and the inner wall of the blank may cause uneven wear, thereby affecting the dimensional accuracy of the final product, and then affecting the quality of the subsequent process products. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a grinding and processing device for producing NdFeB magnets with strong adaptability.

[0005] The technical solution of the present invention is: a grinding and processing device for the production of NdFeB magnets with strong adaptability, comprising a base plate, a support seat and a guide plate, wherein the base plate serves as a load-bearing carrier of the processing device, the support seat is fixedly connected to the base plate, the guide plate is fixedly connected to the top of the support seat, the guide plate is a circular arc guide plate and one end of which is higher than the other end; it also includes: an arc plate, which is slidably mounted on the arc surface at the top of the guide plate, and the bottom of the inner arc surface of the arc plate is a plane; a fixed plate, which is provided with two pieces and symmetrically fixed to the arc surfaces of the two end portions of the arc plate; a clamping processing mechanism, which is used to clamp the magnet blank, and the clamping processing mechanism comprises: a rhombus, which is provided with three groups and is respectively fixedly arranged on the bottom of the inner arc surface of the arc plate and the opposite sides of the fixed plates on both sides, and each group of rhombuses is provided with a plurality of parallel distributions; an installation frame, which is slidably arranged on the arc surface bottom of the arc plate and the side of the fixed plate through the rhombus, and the installation frame is a concave frame; a first cylinder, which is provided with three groups and is respectively fixedly arranged on the arc surface bottom of the arc plate and the side of the fixed plate On the bottom of the inner arc surface of the shaped plate and the sides opposite to the fixed plates on both sides, each group of first cylinders is provided with two and distributed on both sides of the corresponding mounting frame, and the telescopic rods of the two first cylinders in the same group are connected to the corresponding mounting frame; the sliding plate is provided with two symmetrical pieces and slidably arranged in the groove of each group of mounting frames; the rotating plate is provided with two groups and is symmetrically hinged to the two ends of the sliding plate and cross-arranged, and the intersection of the two groups of rotating plates is a pivot; the driving roller is rotatably installed on one end of one group of rotating plates away from the sliding plate, and the first motor is fixedly installed on the sliding plate of the group, and the output shaft of the first motor is connected to the rotating shaft of the driving roller; the grinding roller is rotatably installed on the end of the other group of rotating plates away from the sliding plate, and the second motor is fixedly installed on the sliding plate of the group, and the output shaft of the second motor is connected to the rotating shaft of the grinding roller. The driving rollers and grinding rollers arranged on the three groups of mounting frames are used to clamp and grind the blank; the adjusting member is arranged in the mounting frame and is used to adjust the spacing between the driving roller and the grinding roller; the grinding mechanism is arranged on one of the fixed plates and is used to grind the blank.

[0006] As a preferred technical solution of the present invention, the driving rollers and grinding rollers on the three groups of mounting frames are distributed at intervals, the driving rollers are roller bodies made of rubber, the grinding rollers are roller bodies with emery cloth on the surface, the driving rollers and grinding rollers are both mounted on the rotating plate in a snap-fitting manner, and the grinding rollers can be replaced with driving rollers. When grinding circular blanks, the driving rollers and grinding rollers at three locations are alternately distributed and clamped, and then the driving rollers and grinding rollers are driven by the first motor and the second motor to rotate in opposite directions respectively, so that the driving roller drives the cylindrical blank to roll while the grinding roller is used to grind the curved surface. When grinding square blanks, all the grinding rollers are replaced with driving rollers, and the driving rollers only provide a limiting clamping effect on the square blank, and then the clamped square blank can also be ground by the grinding mechanism, thereby improving the adaptability of the grinding processing device to the grinding operations of both circular and square blanks.

[0007] As a preferred technical solution of the present invention, the adjusting part includes a third motor, a coupling and a bidirectional screw. The third motor is fixedly installed in the groove of the mounting frame. The output shaft of the third motor is installed with a bidirectional screw through a coupling. The bidirectional screw passes through the corresponding two sliding plates and is threadedly matched. The third motor drives the bidirectional screw to rotate through the coupling, so that the bidirectional screw drives the distance between the two sliding plates to change through the thread. After the sliding plates change the distance, the rotating plate can adjust the clamping distance between the driving roller and the grinding roller under the action of the pivot, so that the processing device can adapt to blanks of different sizes.

[0008] As a preferred technical solution of the present invention, the grinding mechanism includes: a first electric slide rail, fixedly installed on the upper side of one of the fixed plates; a mounting block, slidably installed on the first electric slide rail; a mechanical arm, slidably set on the first electric slide rail through the mounting block, and the mechanical arm is used to flexibly operate the grinding operation of the blank; a T-shaped frame, rotatably installed on the operating end of the mechanical arm; a grinding block, rotatably installed on one side of the lower part of the T-shaped frame, the grinding block is a disc block, and a fourth motor is fixedly installed on the other side of the lower part of the T-shaped frame, and the output shaft of the fourth motor is connected to the rotating shaft of the grinding block.

[0009] As a preferred technical solution of the present invention, a flipping piece is arranged on the support seat, and the flipping piece includes a second cylinder and a hinged plate. The second cylinder is hinged on one side of the support seat close to the lower end of the guide plate, and a hinged plate is fixedly provided on the side of the arc plate close to the second cylinder. The telescopic rod of the second cylinder and the hinged plate are hinged to each other. The telescopic rod of the second cylinder contracts and pulls the arc plate to flip 45 degrees on the guide plate through the hinged plate, so that the grinding surface of the square blank clamped by the driving roller can be smoothly polished by the robotic arm, thereby improving the grinding accuracy of the square blank.

[0010] As a preferred technical solution of the present invention, a positioning processing mechanism is arranged on the top surface of the substrate away from the robotic arm, and the positioning processing mechanism includes: a second electric slide rail, fixedly mounted on the top surface of the substrate; a mounting table, slidably mounted on the second electric slide rail; a third electric slide rail, fixedly mounted on the top of the mounting table; a sliding block, slidably mounted on the third electric slide rail; a bearing seat, fixedly mounted on the sliding block; a grinding disc, rotatably mounted on the bearing seat, and the grinding disc is used to accurately position the blank and cooperate with the grinding block to perform double-sided grinding synchronously; a fifth motor, fixedly mounted on the sliding block, and the output shaft of the fifth motor is connected to the rotating shaft of the grinding disc through the bearing seat.

[0011] As a preferred technical solution of the present invention, a cooling element is provided on the substrate, and the cooling element includes an air pump, a gooseneck tube and a nozzle. The air pump is installed on the top surface of the substrate close to the mounting table, and one end of the gooseneck tube is installed and connected to the air outlet of the air pump. The gooseneck tube is a hollow tube and has plasticity and memory functions. The nozzle is arranged at the other end of the gooseneck tube. The air pump sprays low-temperature inert gas (such as nitrogen) through the gooseneck tube and then through the nozzle to the blank grinding place, so as to cool the blank that heats up during grinding, so as to prevent the blank performance from being degraded or damaged due to high temperature.

[0012] As a preferred technical solution of the present invention, a material unloading guide plate is arranged on the base plate between the support seat and the mounting table, the top plate surface of the material unloading guide plate is close to the blank clamped by the clamping processing mechanism, and a limiting convex plate is provided on the edge of the side of the material unloading guide plate away from the blank, and the lower part of the material unloading guide plate is an arc plate body supporting the blank, and after the blank is processed and polished, the limitation of the blank is released by the polishing disk, and the polishing block on the robotic arm is used to push the blank released from the clamping processing mechanism to the material unloading guide plate, so as to achieve the effect of automatic unloading.

[0013] Beneficial effects: 1. The present invention can adapt to magnet blanks of different shapes (cylindrical and square) by replacing the driving roller and the grinding roller to meet the grinding requirements of different blanks. The adjusting part composed of the third motor, coupling and bidirectional screw can accurately control the distance between the driving roller and the grinding roller, so that the equipment can process blanks of different sizes and ensure stability and precision during the grinding process.

[0014] 2. The present invention adopts the reverse rotation design of the driving roller and the grinding roller to ensure the rolling of the cylindrical blank while grinding the curved surface, thereby improving the grinding efficiency. For the square blank, the grinding rollers are completely replaced by driving rollers to achieve effective limit clamping of the blank, and then the grinding is completed by using the grinding mechanism.

[0015] 3. The present invention adopts a grinding mechanism composed of a first electric slide rail, a mechanical arm and a T-shaped frame, combined with a grinding disc driven by a fifth motor, to achieve synchronous grinding of both sides of the blank, greatly improving the automation level of the grinding operation.

[0016] 4. The present invention allows the arc plate to flip on the guide plate through the flipping piece design, which is beneficial to the smooth grinding of the surface of the square blank. The design of the cooling piece uses low-temperature inert gas (such as nitrogen) to cool the blank to prevent the material performance from being degraded or damaged due to the high temperature generated during the grinding process, thereby ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2This is a connection diagram of the base plate, support seat, guide plate, arc plate and fixed plate of the present invention.

[0019] Figure 3 It is a schematic diagram of the support seat, guide plate, arc plate, second cylinder and hinge plate of the present invention.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the specific components of the clamping processing mechanism and the adjusting member of the present invention.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of specific components of the fixing plate and the grinding mechanism of the present invention.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of specific components of the positioning processing mechanism of the present invention.

[0023] Figure 7 It is a schematic diagram of the clamping processing mechanism of the present invention tilting and clamping a square blank.

[0024] Figure 8 It is a positional relationship diagram of the substrate and the blanking guide plate of the present invention.

[0025] Among them: 1-base plate, 100-blank, 2-support seat, 3-guide plate, 4-arc plate, 5-fixed plate, 6-clamping processing mechanism, 61-prism, 62-installation frame, 63-first cylinder, 64-sliding plate, 65-rotating plate, 66-pivot, 67-driving roller, 671-first motor, 68-grinding roller, 681-second motor, 7-adjusting member, 71-third motor, 72-coupling, 73-bidirectional screw, 8-grinding mechanism, 81-first electric slide Rail, 82-mounting block, 83-mechanical arm, 84-T-frame, 85-grinding block, 851-fourth motor, 9-positioning processing mechanism, 91-second electric slide rail, 92-mounting table, 93-third electric slide rail, 94-sliding block, 95-bearing seat, 96-grinding disc, 961-fifth motor, 10-turning part, 101-second cylinder, 102-hinge plate, 11-cooling part, 111-air pump, 112-gooseneck, 113-nozzle, 12-feeding guide plate. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. It should be noted that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] Embodiment 1: A highly adaptable grinding and processing device for producing NdFeB magnets, such as Figure 1-Figure 4 As shown, it includes a base plate 1, a support seat 2 and a guide plate 3. The base plate 1 serves as a load-bearing carrier of the processing device. The support seat 2 is fixedly connected to the base plate 1. The guide plate 3 is fixedly connected to the top of the support seat 2. The guide plate 3 is an arc guide plate and one end of the guide plate is higher than the other end. It also includes: an arc plate 4, which is slidably mounted on the top arc surface of the guide plate 3, and the bottom of the inner arc surface of the arc plate 4 is a plane; a fixed plate 5, which is provided with two pieces and symmetrically fixed to the arc surfaces of the two ends of the arc plate 4; a clamping processing mechanism 6, which is used to clamp the magnet blank 100, clamping The processing mechanism 6 includes: a rhombus body 61, which is provided with three groups and is respectively fixedly arranged on the bottom of the inner arc surface of the arc plate 4 and the side surfaces opposite to the fixed plates 5 on both sides, and each group of rhombus bodies 61 is provided with a plurality of parallel distributed ones; a mounting frame 62, which is slidably provided on the bottom of the arc surface of the arc plate 4 and the side surfaces opposite to the fixed plates 5 through the rhombus bodies 61, and the mounting frame 62 is a concave frame; a first cylinder 63, which is provided with three groups and is respectively fixedly arranged on the bottom of the inner arc surface of the arc plate 4 and the side surfaces opposite to the fixed plates 5 on both sides, and each group of first cylinders 63 is provided with two and is distributed on the corresponding mounting frame 6 2, the telescopic rods of the two first cylinders 63 of the same group are connected to the corresponding mounting frames 62; the sliding plates 64 are provided with two symmetrical pieces and are slidably arranged in the grooves of each group of mounting frames 62; the rotating plates 65 are provided with two groups and are symmetrically hinged to the two ends of the sliding plates 64 and are cross-arranged, and the intersection of the two groups of rotating plates 65 is a pivot 66; the driving roller 67 is rotatably installed on one end of one group of rotating plates 65 away from the sliding plate 64, and the first motor 671 is fixedly installed on the group of sliding plates 64, and the output shaft of the first motor 671 and the driving roller 67 The grinding roller 68 is rotatably mounted on another set of rotating plates 65 away from one end of the sliding plate 64, and a second motor 681 is fixedly mounted on the sliding plate 64, and the output shaft of the second motor 681 is connected to the rotating shaft of the grinding roller 68. The driving roller 67 and the grinding roller 68 arranged on the three sets of mounting frames 62 are used to clamp and grind the blank 100; the adjusting member 7 is arranged in the mounting frame 62 and is used to adjust the distance between the driving roller 67 and the grinding roller 68; the grinding mechanism 8 is arranged on one of the fixed plates 5 and is used to grind the blank 100.

[0029] like Figure 3 and Figure 4As shown, the driving rollers 67 and grinding rollers 68 on the three groups of mounting frames 62 are arranged at intervals, the driving rollers 67 are rollers made of rubber, and the grinding rollers 68 are rollers with sandpaper on the surface. The driving rollers 67 and the grinding rollers 68 are both mounted on the rotating plate 65 in a snap-fitting manner, and the grinding rollers 68 can be replaced by the driving rollers 67. When grinding the circular blank 100, the driving rollers 67 and the grinding rollers 68 at three locations are alternately distributed and clamped, and then the driving rollers 671 and the second motors 681 are respectively driven to drive the rotating plate 65. The roller 67 and the grinding roller 68 rotate in opposite directions, so that the driving roller 67 drives the cylindrical blank 100 to roll while the grinding roller 68 is used to grind the curved surface. When grinding the square blank 100, the grinding roller 68 is completely replaced by the driving roller 67, and the driving roller 67 only provides a limiting clamping effect on the square blank 100. The grinding mechanism 8 can also be used to grind the clamped square blank 100, thereby improving the adaptability of the grinding processing device to the grinding operations of both circular and square blanks 100.

[0030] like Figure 2-Figure 4 As shown, the adjusting member 7 includes a third motor 71, a coupling 72 and a bidirectional screw 73. The third motor 71 is fixedly installed in a groove of the mounting frame 62. The output shaft of the third motor 71 is installed with a bidirectional screw 73 through the coupling 72. The bidirectional screw 73 respectively penetrates the corresponding two sliding plates 64 and is threadedly matched. The third motor 71 drives the bidirectional screw 73 to rotate through the coupling 72, so that the bidirectional screw 73 drives the distance between the two sliding plates 64 to change through the thread. After the sliding plates 64 change the distance, the rotating plate 65, under the action of the pivot 66, realizes the adjustment of the clamping distance between the driving roller 67 and the grinding roller 68, so that the processing device can adapt to blanks 100 of different sizes.

[0031] like Figure 1 , Figure 2 and Figure 5 As shown, the grinding mechanism 8 includes: a first electric slide rail 81, fixedly mounted on the upper side of one of the fixed plates 5; a mounting block 82, slidably mounted on the first electric slide rail 81; a mechanical arm 83, slidably set on the first electric slide rail 81 through the mounting block 82, and the mechanical arm 83 is used for flexibly operating the grinding operation of the blank 100; a T-shaped frame 84, rotatably mounted on the operating end of the mechanical arm 83; a grinding block 85, rotatably mounted on one side of the lower part of the T-shaped frame 84, the grinding block 85 is a disc block, and a fourth motor 851 is fixedly mounted on the other side of the lower part of the T-shaped frame 84, and the output shaft of the fourth motor 851 is connected to the rotating shaft of the grinding block 85.

[0032] Before using the device to grind the NdFeB magnet, the operator selects the appropriate configuration of the driving roller 67 and the grinding roller 68 according to the specific processing shape of the blank 100. When grinding the cylindrical blank 100, the driving roller 67 and the grinding roller 68 are alternately distributed to clamp the blank 100. At this time, the driving roller 67 is used to drive the blank 100 and the grinding roller 68 can provide grinding. First, the operator or the automated equipment places the circular blank 100 to be processed between multiple sets of driving rollers 67 and grinding rollers 68, and the multiple sets are synchronously activated. The first cylinder 63, the telescopic rods of the multiple groups of the first cylinders 63 are extended and push the installation frame 62 to contract and clamp the placed blank 100 at the corresponding prism 61. Since the driving roller 67 is a roller body made of rubber, the driving roller 67 can elastically squeeze the blank 100 and provide stable clamping, thereby performing preliminary limited clamping on the blank 100, and then the third motor 71 in the installation frame 62 is activated. The third motor 71 drives the bidirectional screw rod 73 to rotate through the coupling 72, and drives the corresponding sliding plate 64 to slide through the bidirectional screw rod 73, thereby adjusting the two sliding plates 6 4, the sliding plate 64 cooperates with the pivot 66 to adjust the distance between the driving roller 67 and the grinding roller 68 on the rotating plate 65 to adapt to the curved surface of the blank 100 of different sizes, so as to further adapt and fix the blank 100. When the blank 100 is firmly clamped and positioned, the first motor 671 and the second motor 681 are activated, and the first motor 671 and the second motor 681 respectively drive the driving roller 67 and the grinding roller 68 to rotate in opposite directions. The driving roller 67 pushes the blank 100 to roll at a high speed in the clamped state, while the grinding roller 68 rotates in the opposite direction. The blank 100 is moved and the sandpaper on its surface is used to grind the curved surface. If the blank 100 needs to be double-sided grinded, the first electric slide rail 81 is enabled, and the first electric slide rail 81 drives the mechanical arm 83 to move through the mounting block 82. Since each joint on the mechanical arm 83 is driven by an independent motor, multi-degree-of-freedom movement can be achieved. The T-frame 84 and the grinding block 85 on the mechanical arm 83 are accurately controlled through a preset program, and move along a specified trajectory on the end face of the cylindrical blank 100, thereby completing the grinding operation on the end face of the cylindrical blank 100.

[0033] When grinding the square blank 100, it is necessary to first replace all the grinding rollers 68 with driving rollers 67 to provide a better limiting effect, thereby preventing the grinding rollers 68 from affecting the normal grinding of the square blank 100. At this time, the top angle of the square blank 100 will be limited between the multiple sets of driving rollers 67. Since the first motor 671 and the second motor 681 are not enabled, the multiple sets of driving rollers 67 only provide limiting and clamping for the square blank 100, and the actual grinding work is driven by the first electric slide rail 81 and the mechanical arm 83 and cooperates with the grinding block 85 to complete. When the end face of the square blank 100 is ground, it is consistent with the end face grinding of the cylindrical blank 100, that is, through The program controls the coordinated movement of the first electric slide 81 and the mechanical arm 83 to grind the end face. When grinding or chamfering the clamping surface and top corners of the square blank 100, it is necessary to fold the T-shaped frame 84 on the mechanical arm 83 through program control, and at the same time cooperate with the first electric slide 81 to drive the mechanical arm 83 and the grinding block 85 to reciprocately grind the top surface of the top corner clamping of the square blank 100. After the grinding of the top clamping surface of the blank 100 is completed, the clamping of the square blank 100 by the clamping processing mechanism 6 is first released, and then the remaining un-grinded top corner clamping surfaces are manually switched to the top in turn, thereby completing the grinding of each end face and top corner of the square blank 100.

[0034] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 2 and Figure 6 As shown, a positioning processing mechanism 9 is arranged on the top surface of the substrate 1 away from the robot arm 83, and the positioning processing mechanism 9 includes: a second electric slide rail 91, fixedly mounted on the top surface of the substrate 1; a mounting table 92, slidably mounted on the second electric slide rail 91; a third electric slide rail 93, fixedly mounted on the top of the mounting table 92; a sliding block 94, slidably mounted on the third electric slide rail 93; a bearing seat 95, fixedly mounted on the sliding block 94; a grinding disc 96, rotatably mounted on the bearing seat 95, and the grinding disc 96 is used for accurately positioning the blank 100 and cooperating with the grinding block 85 to perform double-sided grinding synchronously; a fifth motor 961, fixedly mounted on the sliding block 94, and the output shaft of the fifth motor 961 is connected to the rotating shaft of the bearing seat 95 and the grinding disc 96.

[0035] like Figure 1 and Figure 7As shown, a flip member 10 is arranged on the support seat 2, and the flip member 10 includes a second cylinder 101 and a hinged plate 102. The second cylinder 101 is hinged on one side of the support seat 2 close to the lower end of the guide plate 3, and a hinged plate 102 is fixedly provided on the side of the arc plate 4 close to the second cylinder 101. The telescopic rod of the second cylinder 101 and the hinged plate 102 are hinged to each other. The telescopic rod of the second cylinder 101 contracts and pulls the arc plate 4 to flip 45 degrees on the guide plate 3 through the hinged plate 102, so that the grinding surface of the square blank 100 clamped by the driving roller 67 can be smoothed by the robot arm 83, thereby improving the grinding accuracy of the square blank 100.

[0036] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, a cooling member 11 is provided on the substrate 1, and the cooling member 11 includes an air pump 111, a gooseneck tube 112 and a nozzle 113. The air pump 111 is installed on the top surface of the substrate 1 close to the mounting platform 92, and one end of the gooseneck tube 112 is installed and connected to the air outlet of the air pump 111. The gooseneck tube 112 is a hollow tube with plasticity and memory function. The nozzle 113 is arranged at the other end of the gooseneck tube 112. The air pump 111 sprays low-temperature inert gas (such as nitrogen) through the gooseneck tube 112 and then through the nozzle 113 to the grinding place of the blank 100, so as to cool down the blank 100 heated during grinding to prevent the blank 100 from being heated due to high temperature. This causes the performance of the blank 100 to deteriorate or be damaged; a material unloading guide plate 12 is arranged on the base plate 1 between the support seat 2 and the mounting platform 92, and the top plate surface of the material unloading guide plate 12 is close to the blank 100 clamped by the clamping processing mechanism 6, and a limiting convex plate is provided on the edge of the side of the material unloading guide plate 12 away from the blank 100, and the lower part of the material unloading guide plate 12 is an arc plate body that supports the blank 100. After the blank 100 is processed and polished, the limit of the blank 100 is released by the polishing disc 96, and the polishing block 85 on the robot arm 83 is used to push the blank 100 released from the clamping processing mechanism 6 to the material unloading guide plate 12, so as to achieve the effect of automatic unloading.

[0037] In order to further improve the control of the grinding accuracy of the blank 100, the third electric slide rail 93 and the grinding disc 96 on the mounting table 92 are driven by the second electric slide rail 91 to move as a whole to the reference surface of the current grinding blank 100, and the sliding block 94, the bearing seat 95 and the grinding disc 96 are more finely controlled by the third electric slide rail 93 to contact and fit on the end face of the blank 100 away from the grinding block 85, so that the blank 100 is accurately positioned by the grinding disc 96, and then the grinding disc 96 is driven to rotate by the fifth motor 961, and then the fourth motor 851 is used to drive the grinding block 85 to rotate in the opposite direction, so that the two end faces of the blank 100 are clamped between the grinding block 85 and the grinding disc 96 for synchronous grinding, thereby improving the efficiency of the grinding processing of the blank 100. To improve the grinding accuracy of the square blank 100, by activating the second cylinder 101, the telescopic rod of the second cylinder 101 contracts and pulls the arc plate 4 together with the clamped blank 100 through the hinged plate 102 to tilt at an angle of 45 degrees, so that the robot arm 83 can more easily approach the flat part of the blank 100 for grinding, reducing the size deviation during grinding. During the entire grinding process, a low-temperature inert gas (such as nitrogen) is sprayed onto the surface of the blank 100 through the nozzle 113 to help control the temperature and prevent the performance of the blank 100 from being degraded or damaged due to high temperature. Finally, when the blank 100 is polished, the grinding block 85 on the robot arm 83 will push the blank 100 out of the released clamping processing mechanism 6, so that it slides down along the unloading guide plate 12 to achieve automatic unloading.

[0038] While the disclosure has been described with respect to only a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that numerous other embodiments can be devised which do not depart from the scope of the invention.

Claims

1. A highly adaptable grinding and processing device for producing NdFeB magnets, comprising a base plate (1), a support seat (2) and a guide plate (3), wherein the support seat (2) is fixedly connected to the base plate (1), the guide plate (3) is fixedly connected to the top of the support seat (2), and the guide plate (3) is an arc guide plate with one end higher than the other end; It is characterized in that Also includes: An arc-shaped plate (4) is slidably mounted on the top arc surface of the guide plate (3); The fixing plates (5) are provided in two pieces and are symmetrically fixed to the arc surfaces at the two ends of the arc-shaped plate (4); A clamping and processing mechanism (6), wherein the clamping and processing mechanism (6) comprises: The rhombus bodies (61) are provided in three groups and are respectively fixed on the bottom of the inner arc surface of the arc-shaped plate (4) and the opposite side surfaces of the fixed plates (5) on both sides, and each group of rhombus bodies (61) is provided with a plurality of rhombus bodies; A mounting frame (62) is slidably disposed on the bottom of the curved surface of the curved plate (4) and the side surface of the fixing plate (5) through a rhombus body (61); The first cylinders (63) are provided in three groups and are respectively fixedly arranged on the bottom of the inner arc surface of the arc-shaped plate (4) and on the opposite sides of the fixed plates (5) on both sides. Each group of first cylinders (63) is provided with two and are distributed on both sides of the corresponding installation frame (62). The telescopic rods of the two first cylinders (63) in the same group are connected to the corresponding installation frame (62); A sliding plate (64), which is provided with two symmetrical pieces and is slidably disposed in the groove of each set of mounting frames (62); The rotating plates (65) are provided in two groups and are symmetrically hinged to the two ends of the sliding plate (64) and arranged crosswise, and the intersection of the two groups of rotating plates (65) is a pivot (66); A driving roller (67) is rotatably mounted on one end of one of the rotating plates (65) away from the sliding plate (64); a first motor (671) is fixedly mounted on the sliding plate (64); an output shaft of the first motor (671) is connected to a rotating shaft of the driving roller (67); A grinding roller (68) is rotatably mounted on one end of another set of rotating plates (65) away from the sliding plate (64); a second motor (681) is fixedly mounted on the set of sliding plates (64); an output shaft of the second motor (681) is connected to a rotating shaft of the grinding roller (68); an adjusting member (7), arranged in the mounting frame (62) and used for adjusting the distance between the driving roller (67) and the grinding roller (68); A grinding mechanism (8) is disposed on one of the fixed plates (5) and is used to grind the blank (100).

2. A highly adaptable grinding and processing device for producing NdFeB magnets as claimed in claim 1, characterized in that: The driving rollers (67) and grinding rollers (68) on the three groups of mounting frames (62) are arranged at intervals. The driving rollers (67) are roller bodies made of rubber, and the grinding rollers (68) are roller bodies with sandpaper on the surface. The driving rollers (67) and grinding rollers (68) are both rotatably mounted on the rotating plate (65) in a snap-fit ​​manner, and the grinding rollers (68) can be replaced by the driving rollers (67).

3. A highly adaptable grinding and processing device for producing NdFeB magnets as claimed in claim 2, characterized in that: The adjusting member (7) comprises a third motor (71), a coupling (72) and a bidirectional screw (73); the third motor (71) is fixedly mounted in a groove of the mounting frame (62); the output shaft of the third motor (71) is mounted with a bidirectional screw (73) via the coupling (72); the bidirectional screw (73) respectively penetrates through two corresponding sliding plates (64) and is threadedly engaged.

4. A highly adaptable grinding and processing device for producing NdFeB magnets as claimed in claim 3, characterized in that: The grinding mechanism (8) comprises: A first electric slide rail (81) is fixedly mounted on the upper side of one of the fixed plates (5); a mounting block (82) is slidably mounted on the first electric slide rail (81); A mechanical arm (83) is slidably disposed on the first electric slide rail (81) via a mounting block (82), and the mechanical arm (83) is used to flexibly operate the grinding operation of the blank (100); A T-shaped frame (84) rotatably mounted on the operating end of the mechanical arm (83); A grinding block (85) is rotatably mounted on one side of the lower portion of the T-shaped frame (84); the grinding block (85) is a disc block; a fourth motor (851) is fixedly mounted on the other side of the lower portion of the T-shaped frame (84); an output shaft of the fourth motor (851) is connected to a rotating shaft of the grinding block (85).

5. A highly adaptable grinding and processing device for producing NdFeB magnets as claimed in claim 4, characterized in that: The support seat (2) is provided with a flip member (10), the flip member (10) comprising a second cylinder (101) and a hinged plate (102); the second cylinder (101) is hingedly connected to one side of the support seat (2) close to the lower end of the guide plate (3); the hinged plate (102) is fixedly provided to one side of the arc plate (4) close to the second cylinder (101); and the telescopic rod of the second cylinder (101) and the hinged plate (102) are hingedly connected to each other.

6. A highly adaptable grinding and processing device for producing NdFeB magnets as claimed in claim 5, characterized in that: A positioning processing mechanism (9) is provided on the top surface of the substrate (1) away from the mechanical arm (83), and the positioning processing mechanism (9) comprises: A second electric slide rail (91) is fixedly mounted on the top surface of the base plate (1); A mounting platform (92) slidably mounted on the second electric slide rail (91); A third electric slide rail (93) is fixedly mounted on the top of the mounting platform (92); A sliding block (94) slidably mounted on the third electric slide rail (93); A bearing seat (95) is fixedly mounted on the sliding block (94); A grinding disc (96) is rotatably mounted on the bearing seat (95), and the grinding disc (96) is used to accurately position the blank (100) and cooperate with the grinding block (85) to perform double-sided grinding synchronously; The fifth motor (961) is fixedly mounted on the sliding block (94), and the output shaft of the fifth motor (961) is connected to the rotating shaft of the grinding disc (96) via a bearing seat (95).

7. A highly adaptable grinding and processing device for producing NdFeB magnets as claimed in claim 6, characterized in that: A cooling element (11) is provided on the substrate (1), and the cooling element (11) includes an air pump (111), a gooseneck tube (112) and a nozzle (113). The air pump (111) is installed on the top surface of the substrate (1) close to the mounting platform (92), and one end of the gooseneck tube (112) is installed and connected to the air outlet of the air pump (111). The gooseneck tube (112) is a hollow tube and has plasticity and memory functions. The nozzle (113) is arranged at the other end of the gooseneck tube (112).

8. A highly adaptable grinding and processing device for producing NdFeB magnets as claimed in claim 7, characterized in that: A material removal guide plate (12) is provided on the base plate (1) between the support seat (2) and the mounting platform (92); a top plate surface of the material removal guide plate (12) is close to the blank (100) clamped by the clamping processing mechanism (6); a limiting convex plate is provided on an edge of the material removal guide plate (12) away from the blank (100); and a lower portion of the material removal guide plate (12) is an arc plate body that supports the blank (100).

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