Polishing device for soft magnetic ferrite core production

Abstract

The invention relates to the field of soft magnetic ferrite core processing, in particular to a grinding device for soft magnetic ferrite core production. According to an existing soft magnetic ferrite core grinding device, when magnetic cores of different specifications are ground, a grinding jig needs to be detached for adjustment, the process is tedious and time-consuming, in the magnetic core grinding process, chippings generated in the process are inconvenient to clean and collect, the iron core grinding quality is affected, dust pollution is caused, and the health of workers is harmed. A grinding device for soft magnetic ferrite core production comprises a supporting frame and the like. A box body is fixedly connected to the supporting frame, and a servo motor is fixedly connected to the box body. The servo motor can drive the four movable frames to jointly support and limit a machined part, the grinding roller can grind the surface of the machined part, the position of the grinding roller can be adjusted, and therefore soft magnetic ferrite iron cores of different specifications can be ground, and the equipment is wider in applicability.

Description

Technical Field

[0001] This invention relates to the field of soft magnetic ferrite core processing, and more particularly to a grinding device for the production of soft magnetic ferrite cores. Background Technology

[0002] Soft ferrite cores are important components widely used in electronic devices, primarily in transformers, inductors, and other electromagnetic equipment. To meet specific design requirements, soft ferrite cores undergo a polishing process to improve their surface quality or dimensional accuracy. Due to the relatively brittle nature of soft ferrite materials, special care must be taken with the polishing methods and techniques to avoid damaging the core structure and performance.

[0003] Most current soft ferrite core grinding equipment uses specific grinding tools to grind the surface of the core. The grinding fixtures are mostly fixed, and when grinding cores of different specifications, the grinding fixtures need to be disassembled for adjustment. The process is cumbersome, time-consuming, and inefficient. Furthermore, it is inconvenient to clean and collect the debris generated during the core grinding process, which affects the grinding quality of the iron core and causes dust pollution, endangering the health of workers. Summary of the Invention

[0004] In view of the shortcomings or deficiencies of the prior art, the present invention provides a grinding device for the production of soft magnetic ferrite cores, which can grind iron cores of different specifications, making the equipment more applicable. It can also clean and collect the debris generated during the grinding process, improving the grinding quality of iron cores and improving the working environment.

[0005] A grinding device for producing soft magnetic ferrite cores includes a support frame, a housing fixedly connected to the support frame, a servo motor fixedly connected to the housing, a rotating shaft rotatably connected to the housing, the rotating shaft being fixedly connected to the output shaft of the servo motor, a fixing mechanism being provided on the rotating shaft, and a grinding mechanism being provided on the housing.

[0006] More preferably, the fixing mechanism includes a rotating roller, the rotating roller is fixedly connected to the rotating shaft, a workpiece is placed on the rotating roller, four movable frames are slidably connected to the rotating roller, two return springs are connected between the rotating roller and the four movable frames, and a weight is fixedly connected to each of the four movable frames.

[0007] More preferably, the grinding mechanism includes movable blocks, two of which are slidably connected to the housing, the two movable blocks being symmetrically arranged, a grinding roller being rotatably connected between the two movable blocks, a drive wheel being fixedly connected to one end of the rotating shaft, a transmission wheel being fixedly connected to one end of the grinding roller, a belt being fitted between the drive wheel and the transmission wheel, a roller frame being slidably connected to the outer wall of the housing, a small pulley being provided on the roller frame, a tension spring being connected between the roller frame and the housing, a nut being fixedly connected to the housing, a screw being threadedly connected to the nut, and the screw being rotatably connected to one of the movable blocks.

[0008] More preferably, it also includes a dust collection mechanism, which is disposed on the housing. The dust collection mechanism includes a shaft, which is rotatably connected to the housing. A transmission assembly is provided between the shaft and the rotating shaft, and the transmission assembly is located inside the housing. A cam is fixedly connected to the shaft, and the cam has a protrusion. A slotted frame is slidably connected to the housing, and the slotted frame has a straight groove. The protrusion on the cam is located in the straight groove of the slotted frame. A rack is fixedly connected to the slotted frame, and the rack is located... Inside the housing, two flow guides are rotatably connected and symmetrically arranged. Each flow guide is fixedly connected to a meshing gear, and a rack meshes with both meshing gears. Two connecting pipes are fixedly connected to the housing and rotatably connected to the flow guides. The connecting pipes communicate with the flow guides. Each connecting pipe is fixedly connected to a vacuum pump. A collection box is fixedly connected between the ends of the two connecting pipes and communicates with both connecting pipes. The bottom of the collection box contacts the support frame.

[0009] More preferably, it also includes a cleaning mechanism, which is disposed on the housing. The cleaning mechanism includes a reciprocating lead screw, which is fixedly connected to the shaft. A second nut is threadedly connected to the reciprocating lead screw, and a connecting rod is fixedly connected to the bottom of the second nut. A brush plate is slidably connected to the connecting rod. A limit rod is slidably connected inside the housing. The limit rod is fixedly connected to the rack and slidably connected to the brush plate.

[0010] More preferably, it also includes an edge grinding mechanism, which is disposed on the housing. The edge grinding mechanism includes a bevel block, which is fixedly connected to the roller frame. The bevel block is provided with a guide bevel. A mounting frame is slidably connected inside the housing. The mounting frame is provided with a protruding rod, which is located below the guide bevel on the bevel block. Two return springs are connected between the housing and the mounting frame. Eight grinding discs are slidably connected to the mounting frame, with two adjacent grinding discs forming a group. Compression springs are connected between the mounting frame and the eight grinding discs. A bevel frame is fixedly connected inside the housing, and the bevel frame is provided with five extrusion blocks.

[0011] Compared with the prior art, the present invention has the following advantages: First, the operator rotates the screw, and the grinding roller moves horizontally to the appropriate position. Then, the operator starts the servo motor, which drives the four movable frames to jointly support and limit the workpiece. The grinding roller contacts the surface of the workpiece and grinds the surface of the workpiece. In this way, the position of the grinding roller can be adjusted, so that grinding operations can be performed on soft magnetic ferrite cores of different specifications, making the equipment more applicable.

[0012] When the servo motor drives the shaft to rotate, the two meshing gears will drive the two guide vanes to swing back and forth. At the same time, the two air pumps will draw the debris falling from the workpiece into the collection box through the two guide vanes. In this way, the debris generated during the grinding process can be drawn and collected, thereby reducing dust pollution and improving the working environment.

[0013] When the shaft drives the reciprocating lead screw to rotate, the connecting rod will drive the brush plate to move back and forth in the direction of approaching or moving away from the rack. At the same time, the limiting rod will drive the brush plate to move back and forth horizontally. In this way, the brush plate will brush the debris attached to the surface of the workpiece and the grinding roller, which can prevent the debris from affecting the grinding process, thus making the soft magnetic ferrite core produced by grinding better.

[0014] When the roller frame moves downward under the action of the tension spring, the grinding disc will contact the side of the workpiece. As the workpiece rotates, the grinding disc will grind the side of the workpiece. In this way, the workpiece can be ground more comprehensively, thereby improving the processing efficiency of soft magnetic ferrite cores. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the first partial three-dimensional structure of the dust collection mechanism of the present invention.

[0017] Figure 3 For the present invention Figure 2 A magnified three-dimensional structural diagram of A in the middle.

[0018] Figure 4 This is a partial three-dimensional structural diagram of the grinding mechanism and dust collection mechanism of the present invention.

[0019] Figure 5 This is a partial cross-sectional three-dimensional structural schematic diagram of the grinding mechanism of the present invention.

[0020] Figure 6 This is a partial cross-sectional perspective view of the grinding mechanism and dust collection mechanism of the present invention.

[0021] Figure 7 This is a partial cross-sectional three-dimensional structural schematic diagram of the dust collection mechanism of the present invention.

[0022] Figure 8 This is a cross-sectional three-dimensional structural diagram of the cleaning mechanism of the present invention.

[0023] Figure 9 This is a schematic diagram of the second part of the dust collection mechanism of the present invention.

[0024] Figure 10 This is a cross-sectional three-dimensional structural diagram of the fixing mechanism of the present invention.

[0025] Figure 11 This is a three-dimensional structural diagram showing the disassembled components of the movable block, grinding roller, and screw of the present invention.

[0026] Figure 12 This is a partial three-dimensional structural diagram of the edge grinding mechanism of the present invention.

[0027] Figure 13 This is a partial cross-sectional perspective view of the grinding mechanism of the present invention.

[0028] Figure 14 This is a three-dimensional structural diagram of the mounting bracket, grinding disc, and compression spring of the present invention.

[0029] Figure 15 This is a three-dimensional structural diagram of the roller frame and inclined block of the present invention.

[0030] The components in the attached diagram are labeled as follows: 1. Support frame, 2. Housing, 3. Servo motor, 4. Rotating shaft, 5. Machined part, 61. Rotating roller, 62. Movable frame, 63. Return spring, 64. Weight, 71. Movable block, 72. Grinding roller, 731. Drive wheel, 732. Transmission wheel, 733. Belt, 74. Roller frame, 75. Tension spring, 76. Nut 1, 77. Screw, 811. Shaft, 812. Transmission wheel Moving components, 82. Cam, 83. Slotted frame, 84. Rack, 85. Flow guide, 86. Meshing gear, 87. Connecting pipe, 88. Air pump, 89. Collection box, 91. Reciprocating screw, 92. Nut II, 93. Connecting rod, 94. Brush plate, 95. Limiting rod, 101. Inclined block, 102. Mounting bracket, 103. Return spring, 104. Grinding disc, 105. Compression spring, 106. Inclined frame. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1 A grinding device for producing soft magnetic ferrite cores, such as Figures 1-11 As shown, it includes a support frame 1, a housing 2 connected to the support frame 1 by bolts, a servo motor 3 connected to the housing 2 by bolts, a rotating shaft 4 rotatably connected to the housing 2, the rotating shaft 4 being fixedly connected to the output shaft of the servo motor 3, a fixing mechanism being provided on the rotating shaft 4 for limiting the iron core, and a grinding mechanism being provided on the housing 2 for grinding the iron core.

[0033] The fixing mechanism includes a rotating roller 61, which is connected to the rotating shaft 4 via a flat key. A workpiece 5 is placed on the rotating roller 61. Four movable frames 62 are slidably connected to the rotating roller 61. Two return springs 63 are connected to the rotating roller 61 and the four movable frames 62 via hooks. A weight 64 is bolted to each of the four movable frames 62.

[0034] The grinding mechanism includes movable blocks 71. Two movable blocks 71 are slidably connected to the housing 2. The two movable blocks 71 are symmetrically arranged. A grinding roller 72 is rotatably connected between the two movable blocks 71. One end of the rotating shaft 4 is connected to a drive wheel 731 via a flat key. One end of the grinding roller 72 is connected to a transmission wheel 732 via a flat key. A belt 733 is fitted between the drive wheel 731 and the transmission wheel 732. A roller frame 74 is slidably connected to the outer wall of the housing 2. The roller frame 74 is provided with small pulleys. A tension spring 75 is connected between the roller frame 74 and the housing 2 via a hook. A nut 76 is welded to the housing 2. A screw 77 is threadedly connected to the nut 76. The screw 77 is rotatably connected to one of the movable blocks 71.

[0035] Initially, the workpiece 5 is placed on the rotating roller 61, the belt 733 squeezes the roller frame 74, and the tension spring 75 is in a stretched state. First, the operator rotates the screw 77, which moves horizontally under the action of the thread. The horizontal movement of the screw 77 drives the grinding roller 72, the transmission wheel 732, and the two movable blocks 71 to move horizontally to the appropriate position. As the transmission wheel 732 moves horizontally, the belt 733 stops squeezing the roller frame 74, and the tension spring 75 rebounds. The rebound of the tension spring 75 drives the roller frame 74 to move downward, which pulls the belt 733 to tighten. Then, the operator starts the servo motor 3, which drives the rotating shaft 4 to rotate. The rotation of the rotating shaft 4 drives the rotating roller 61 and the drive wheel 731 to rotate. The rotation of the drive wheel 731 drives the grinding roller 72 to rotate via the belt 733. The rotation of the rotating roller 61 drives the four movable frames 62, the four weights 64, and the four return springs. When spring 63 rotates, the four weights 64 move away from each other under centrifugal force. The movement of the four weights 64 will drive the four movable frames 62 to move away from each other, compressing the return spring 63. The four movable frames 62 will work together to tighten and limit the workpiece 5. The grinding roller 72 will contact the surface of the workpiece 5 and grind the surface of the workpiece 5. After the workpiece 5 is ground, the operator will turn off the servo motor 3. As the rotating roller 61 stops rotating, the return spring 63 will reset. The reset of the return spring 63 will drive the four movable frames 62 and the four weights 64 to move away from each other and reset. The four movable frames 62 will no longer limit the rotating roller 61. Then the operator will remove the workpiece 5. In this way, the position of the grinding roller 72 can be adjusted, so that grinding operations can be performed on soft magnetic ferrite cores of different specifications, making the equipment more versatile.

[0036] Example 2 Based on Example 1, such as Figures 1-9As shown, it also includes a dust collection mechanism, which is mounted on the housing 2. The dust collection mechanism includes a shaft 811, which is rotatably connected to the housing 2. A transmission assembly 812 is provided between the shaft 811 and the rotating shaft 4. The transmission assembly 812 is located inside the housing 2. A cam 82 is connected to the shaft 811 via a flat key. The cam 82 has a protrusion. A slotted frame 83 is slidably connected to the housing 2. The slotted frame 83 has a straight groove. The protrusion on the cam 82 is located in the straight groove on the slotted frame 83. A rack 84 is bolted to the slotted frame 83. The rack 84 is located in the housing 2. Inside the housing 2, two flow guides 85 are rotatably connected. The two flow guides 85 are symmetrically arranged, and each flow guide 85 is connected to a meshing gear 86 via a flat key. The rack 84 meshes with both meshing gears 86. The housing 2 is connected to two connecting pipes 87 via flanges. The connecting pipes 87 are rotatably connected to the flow guides 85 and communicate with the flow guides 85. Each connecting pipe 87 is bolted to a vacuum pump 88. A collection box 89 is welded between the ends of the two connecting pipes 87 and communicates with both connecting pipes 87. The bottom of the collection box 89 contacts the support frame 1.

[0037] When the servo motor 3 drives the rotating shaft 4 to rotate, the rotating shaft 4 will drive the transmission component 812 to rotate. The rotation of the transmission component 812 will drive the shaft 811 to rotate. The rotation of the shaft 811 will drive the cam 82 to rotate. The rotation of the cam 82 will drive the slotted frame 83 to move horizontally back and forth. The horizontal back and forth movement of the slotted frame 83 will drive the rack 84 to move horizontally back and forth. The horizontal back and forth movement of the rack 84 will drive both meshing gears 86 to rotate back and forth. The reciprocating rotation of the two meshing gears 86 will drive the two guide vanes 85 to swing back and forth. At the same time, the two vacuum pumps 88 will start. The two vacuum pumps 88 will draw the debris falling from the workpiece 5 into the collection box 89 through the two guide vanes 85. In this way, the debris generated during the grinding of the workpiece 5 can be drawn and collected, thereby reducing dust pollution and improving the working environment.

[0038] Example 3 Based on Example 2, such as Figure 8As shown, it also includes a cleaning mechanism, which is mounted on the housing 2. The cleaning mechanism includes a reciprocating lead screw 91, which is bolted to the shaft 811. A nut 92 is threaded onto the reciprocating lead screw 91, and a connecting rod 93 is welded to the bottom of the nut 92. A brush plate 94 is slidably connected to the connecting rod 93. A limit rod 95 is slidably connected inside the housing 2. The limit rod 95 is fixedly connected to the rack 84 and slidably connected to the brush plate 94.

[0039] When the shaft 811 drives the reciprocating screw 91 to rotate, the rotation of the reciprocating screw 91 will cause the second nut 92 to reciprocate in the direction of approaching or moving away from the transmission component 812. The reciprocating movement of the second nut 92 will cause the connecting rod 93 to reciprocate. The reciprocating movement of the connecting rod 93 will cause the brush plate 94 to reciprocate in the direction of approaching or moving away from the rack 84. At the same time, as the slotted frame 83 drives the rack 84 to reciprocate horizontally, the horizontal reciprocating movement of the rack 84 will cause the limiting rod 95 to reciprocate horizontally. The horizontal reciprocating movement of the limiting rod 95 will cause the brush plate 94 to reciprocate horizontally. In this way, the brush plate 94 reciprocates and brushes the debris attached to the surface of the workpiece 5 and the grinding roller 72, which can prevent the debris from affecting the grinding process, thereby making the quality of the ground soft magnetic ferrite core better.

[0040] Example 4 Based on Example 3, such as Figures 12-15 As shown, it also includes an edge grinding mechanism, which is mounted on the housing 2. The edge grinding mechanism includes a bevel block 101, which is fixedly connected to the roller frame 74. The bevel block 101 has a guide bevel. A mounting frame 102 is slidably connected inside the housing 2. The mounting frame 102 has a protruding rod, which is located below the guide bevel on the bevel block 101. Two return springs 103 are connected between the housing 2 and the mounting frame 102. Eight grinding discs 104 are slidably connected to the mounting frame 102. Two adjacent grinding discs 104 form a group. Compression springs 105 are connected between the mounting frame 102 and the eight grinding discs 104. A bevel frame 106 is fixedly connected inside the housing 2. The bevel frame 106 has five pressing blocks.

[0041] When the roller frame 74 moves downward under the action of the tension spring 75, the roller frame 74 will drive the inclined block 101 to move downward. The guide inclined surface on the inclined block 101 will contact the protrusion on the mounting frame 102. The downward movement of the inclined block 101 will squeeze the mounting frame 102 to move horizontally, and the return spring 103 will be compressed. The horizontal movement of the mounting frame 102 will drive the grinding disc 104 and the compression spring 105 to move horizontally. The inclined frame 106 will contact all four sets of grinding discs 104. Two adjacent pressing blocks on the inclined frame will squeeze two grinding discs 104 of the same set to move away from each other. The compression spring 105 will be compressed, and the grinding discs 104 will contact the side of the workpiece 5. As the workpiece 5 rotates, the grinding discs 104 will grind the side of the workpiece 5. During grinding, when the belt 733 drives the roller frame 74 to move upward and reset, the roller frame 74 will drive the inclined block 101 to move upward. The inclined block 101 will disengage from the mounting frame 102, and the return spring 103 will reset. The reset of the return spring 103 will drive the mounting frame 102 to move horizontally in the opposite direction and reset. The reset of the mounting frame 102 will drive the grinding disc 104 and the compression spring 105 to move horizontally in the opposite direction and reset. The grinding disc 104 will disengage from the inclined frame, and the compression spring 105 will reset. The reset of the compression spring 105 will drive the two grinding discs 104 in the same group to move in a direction away from each other and reset. The grinding disc 104 will disengage from the workpiece 5. In this way, the workpiece 5 can be ground more comprehensively, thereby improving the processing efficiency of the soft magnetic ferrite core.

[0042] The technical principles of the embodiments of the present invention have been described above with reference to specific examples. These descriptions are merely for explaining the principles of the embodiments of the present invention and should not be construed as limiting the scope of protection of the embodiments of the present invention in any way. Based on the explanation herein, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the embodiments of the present invention.

Claims

1. A grinding device for producing soft magnetic ferrite cores, characterized in that: It includes a support frame (1), a housing (2) is fixedly connected to the support frame (1), a servo motor (3) is fixedly connected to the housing (2), a rotating shaft (4) is rotatably connected to the housing (2), the rotating shaft (4) is fixedly connected to the output shaft of the servo motor (3), a fixing mechanism is provided on the rotating shaft (4), and a grinding mechanism is provided on the housing (2).

2. The grinding device for producing soft magnetic ferrite cores as described in claim 1, characterized in that: The fixing mechanism includes a rotating roller (61), the rotating roller (61) is fixedly connected to the rotating shaft (4), the workpiece (5) is placed on the rotating roller (61), four movable frames (62) are slidably connected to the rotating roller (61), two return springs (63) are connected between the rotating roller (61) and the four movable frames (62), and weights (64) are fixedly connected to the four movable frames (62).

3. The grinding device for producing soft magnetic ferrite cores as described in claim 1, characterized in that: The grinding mechanism includes a movable block (71), and two movable blocks (71) are slidably connected to the housing (2). The two movable blocks (71) are symmetrically arranged, and a grinding roller (72) is rotatably connected between the two movable blocks (71). One end of the rotating shaft (4) is fixedly connected to a drive wheel (731), and one end of the grinding roller (72) is fixedly connected to a transmission wheel (732). A belt (733) is fitted between the drive wheel (731) and the transmission wheel (732). A roller frame (74) is slidably connected to the outer wall of the housing (2), and a tension spring (75) is connected between the roller frame (74) and the housing (2). A nut (76) is fixedly connected to the housing (2), and a screw (77) is threadedly connected to the nut (76). The screw (77) is rotatably connected to one of the movable blocks (71).

4. The grinding device for producing soft magnetic ferrite cores as described in claim 3, characterized in that: The roller frame (74) is equipped with small pulleys.

5. The grinding device for producing soft magnetic ferrite cores as described in claim 1, characterized in that: It also includes a dust collection mechanism, which is mounted on the housing (2). The dust collection mechanism includes a shaft (811), which is rotatably connected to the housing (2). A transmission assembly (812) is provided between the shaft (811) and the rotating shaft (4). The transmission assembly (812) is located inside the housing (2). A cam (82) is fixedly connected to the shaft (811). A protrusion is provided on the cam (82). A slotted frame (83) is slidably connected to the housing (2). A rack (84) is fixedly connected to the slotted frame (83). The rack (84) is located inside the housing (2). Two guide vanes are rotatably connected inside the housing (2). (85), the two flow guides (85) are arranged symmetrically, and meshing gears (86) are fixedly connected to both flow guides (85). The rack (84) meshes with both meshing gears (86). Two connecting pipes (87) are fixedly connected to the housing (2). The connecting pipes (87) are rotatably connected to the flow guides (85). The connecting pipes (87) communicate with the flow guides (85). A vacuum pump (88) is fixedly connected to both connecting pipes (87). A collection box (89) is fixedly connected between the ends of the two connecting pipes (87). The collection box (89) communicates with both connecting pipes (87). The bottom of the collection box (89) contacts the support frame (1).

6. The grinding device for producing soft magnetic ferrite cores as described in claim 5, characterized in that: The slotted frame (83) has a straight slot, and the protrusion on the cam (82) is located in the straight slot on the slotted frame (83).

7. A grinding device for producing soft magnetic ferrite cores as described in claim 1, characterized in that: It also includes a cleaning mechanism, which is set on the housing (2). The cleaning mechanism includes a reciprocating screw (91), which is fixedly connected to the shaft (811). A second nut (92) is threadedly connected to the reciprocating screw (91). A connecting rod (93) is fixedly connected to the bottom of the second nut (92). A brush plate (94) is slidably connected to the connecting rod (93). A limit rod (95) is slidably connected inside the housing (2). The limit rod (95) is fixedly connected to the rack (84). The limit rod (95) is slidably connected to the brush plate (94).

8. The grinding device for producing soft magnetic ferrite cores as described in claim 1, characterized in that: It also includes an edge grinding mechanism, which is mounted on the housing (2). The edge grinding mechanism includes a bevel block (101), which is fixedly connected to the roller frame (74). The bevel block (101) is provided with a guide bevel. A mounting frame (102) is slidably connected inside the housing (2). The mounting frame (102) is provided with a protruding rod, which is located below the guide bevel on the bevel block (101). Two return springs (103) are connected between the housing (2) and the mounting bracket (102). Eight grinding discs (104) are slidably connected on the mounting bracket (102). Two adjacent grinding discs (104) form a group. Compression springs (105) are connected between the mounting bracket (102) and the eight grinding discs (104). A beveled frame (106) is fixedly connected inside the housing (2). Five pressing blocks are provided on the beveled frame (106).

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