An encryption grinding device of a soft magnetic ferrite core

Abstract

This invention discloses a fine-grinding device for soft magnetic ferrite cores, relating to the field of soft magnetic ferrite processing technology. The invention includes a cabinet with two symmetrically arranged fixed columns at the top. Two support platforms are fixedly mounted through the outer walls of the tops of the fixed columns. A drive mechanism is mounted on the top of each support platform. An outer grinding wheel is located at the top edge of the cabinet. An electric slide rail is mounted on the top of the inner wall of the cabinet, and a rotating mechanism is slidably mounted inside the electric slide rail. An inner grinding wheel is fixedly mounted at the output end of the rotating mechanism. This invention, through the interaction of the inner and outer grinding wheels, enables magnetic cores of different sizes to automatically complete the grinding of their inner and outer walls during revolution, avoiding the need for multiple grinding and adjustments for a single core, effectively improving the grinding efficiency of the core. Simultaneously, the negative pressure mechanism prevents grinding debris residue and adhesion, avoiding scratches caused by debris.

Description

Technical Field

[0001] This invention relates to the field of soft magnetic ferrite processing technology, specifically to a fine grinding device for soft magnetic ferrite cores. Background Technology

[0002] Soft magnetic ferrite is a magnetic material with a spinel crystal structure. The main advantages of soft magnetic ferrite include a resistivity that is much higher than that of metallic magnetic materials, which can suppress the generation of eddy currents, thus enabling ferrite to be used in high-frequency fields. At the same time, it can increase the permeability, thereby improving the quality of inductance.

[0003] Patent publication number CN214024843U discloses a fine grinding device for soft magnetic ferrite cores, including a housing. A support plate is fixedly connected to the top right side of the housing. A drive shaft is rotatably connected inside the support plate. Four sleeves are fixedly connected to the drive shaft. Connecting rods are movably inserted into the sleeves. A pressure plate is fixedly connected to the end of the connecting rod away from the drive shaft. A driven gear is fixedly connected to the rear end of the drive shaft. A first drive motor is fixedly connected to the top of the housing. A drive gear is fixedly connected to the output end of the first drive motor. A movable seat is provided on the top left side of the housing. A second drive motor is fixedly connected to the top of the movable seat. A grinding disc is fixedly connected to the output end of the second drive motor. An air duct and a dust storage chamber are opened on the right side of the housing. A dust storage box is provided in the dust storage chamber. This patent can fix and grind magnetic cores of different sizes with high grinding precision, and can collect the dust generated during the grinding process.

[0004] However, the device also has shortcomings: the device uses a sleeve and a pressure plate to grind the magnetic core, but when grinding the magnetic core, it can only grind the outer circumferential surface of the magnetic core at a time. Therefore, a single magnetic core needs to undergo multiple grinding steps, which can easily reduce the grinding efficiency of the magnetic core. At the same time, it is difficult to ensure the stability of the magnetic core during the revolution grinding process, which can easily lead to uneven grinding thickness on the vertical surface. Furthermore, it is difficult to purify the harmful gases generated during grinding, which can easily increase the discomfort of surrounding workers. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a fine grinding device for soft magnetic ferrite cores, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fine grinding device for soft magnetic ferrite cores, comprising a cabinet, two fixed columns symmetrically arranged on the top of the cabinet, two bearing platforms fixedly installed through the outer wall of the top of the fixed columns, a driving mechanism on the top of the bearing platforms, an outer grinding wheel at the top edge of the cabinet, an electric slide rail on the top of the inner wall of the cabinet, a rotating mechanism slidably installed inside the electric slide rail, an inner grinding wheel fixedly installed at the output end of the rotating mechanism, an electric lead screw rotatably installed on the top of the inner wall of the driving mechanism, a negative pressure mechanism slidably installed through the outer wall of the electric lead screw, an error prevention device to ensure stable grinding of the magnetic core is arranged around the negative pressure mechanism, and an anti-crack device to monitor the temperature of the grinding area is arranged around the error prevention device, two slide rails symmetrically and fixedly installed on the top of the cabinet, a slider slidably installed inside each of the two slide rails via springs, a limit roller rotatably installed on the top of the slider, a slotted plate fixedly installed on the top of the cabinet, and several assist wheels equidistantly and rotatably installed inside the slotted plate.

[0007] According to the above technical solution, two square slots are symmetrically opened on the top of the cabinet, and a circular plate is set at the center of the top of the cabinet. The outer grinding wheel rotates clockwise by the output end of the external motor, and the inner grinding wheel rotates counterclockwise. The limiting roller is used to ensure that the magnetic core is always in the center position during the movement. The rotating assist wheel effectively reduces the friction loss generated during the movement of the magnetic core.

[0008] According to the above technical solution, the outer wall of the electric lead screw is a non-self-locking spiral groove, the top outer wall of the negative pressure mechanism is slidably installed on the inner wall of the drive mechanism, the limiting rollers are located on both sides of the outer grinding wheel, and the slotted plate is located on both sides of the inner grinding wheel. One end of the magnetic core to be processed is placed on the bottom surface of the inner grinding wheel. At this time, the electric slide rail is activated, causing the rotating mechanism to slide closer to the outer grinding wheel. The rotating mechanism then drives the inner grinding wheel to move synchronously, and the inner grinding wheel drives the magnetic core to move horizontally until its outer wall contacts the grinding surface of the outer grinding wheel. Afterward, the electric lead screw is activated. When the electric lead screw rotates, the non-self-locking spiral groove on its outer wall drives the top outer wall of the negative pressure mechanism to slide downwards along the inside of the drive mechanism, i.e., the negative pressure mechanism descends closer to the magnetic core. The negative pressure mechanism generates suction upon activation. Subsequently, the output ends of the rotating mechanism and the external motor drive the inner and outer grinding wheels to rotate counterclockwise and clockwise, respectively. Under their drive, the magnetic core gradually revolves and grinds, while the negative pressure mechanism removes the debris generated during grinding. When the magnetic core moves horizontally through the inner grinding wheel, its bottom contacts the outer wall of the assist wheel. With the slotted plate limiting the assist wheel, friction is generated between the assist wheel and the bottom of the magnetic core, causing the assist wheel to contact the magnetic core in a rotating posture. At the same time, the outer walls of both ends of the magnetic core contact and abut against the outer wall of the limiting roller. The limiting roller causes the slider to slide horizontally inside the slide to adapt to the size of the magnetic core. The revolving outer wall of the magnetic core contacts the outer wall of the limiting roller, causing the limiting roller to revolve at the top of the slider.

[0009] According to the above technical solution, the error prevention device includes two horizontal plates, both of which are slidably installed on the outer wall of the fixed column. The top of the horizontal plate near the drive mechanism is located on the bottom movement trajectory of the negative pressure mechanism. An L-shaped pressure plate is slidably installed inside the horizontal plate through a spring. The bottom end of the L-shaped pressure plate has an installation groove. A rotating rod is rotatably installed inside the installation groove of the L-shaped pressure plate. When the negative pressure mechanism moves downward, it will contact and press the horizontal plate to slide downward along the outer wall of the fixed column. During the downward movement of the horizontal plate and the L-shaped pressure plate, the L-shaped pressure plate drives the rotating rod to move synchronously. When the circumferential surface of the rotating rod contacts the top of the magnetic core, a resisting force is generated. At this time, the L-shaped pressure plate stops moving downward, and the inside of the horizontal plate slides downward along the outer side wall of the L-shaped pressure plate. The rotating rod, which is rotatably installed, reduces the frictional resistance encountered by the magnetic core during its revolution and avoids increased wear caused by the pressure during the revolution of the magnetic core.

[0010] According to the above technical solution, a trapezoidal frame is fixedly installed on the side wall of the horizontal plate away from the fixed column, a sealing plate is slidably installed on the top of the inner wall of the cabinet by a spring, an L-shaped long plate is slidably installed through the inside of the cabinet, the bottom of the sealing plate is fixedly installed on the top surface of the bottom end of the L-shaped long plate, and a heating mechanism is fixedly installed on the bottom of the L-shaped long plate.

[0011] According to the above technical solution, the sealing plate is located directly below the square groove, and the top of the L-shaped long plate near the fixed column is located on the trajectory of the inclined surface of the trapezoidal frame. The bottom of the heating mechanism is slidably installed on the bottom of the inner wall of the cabinet. When the horizontal plate drives the trapezoidal frame to move downward, the inclined surface of the trapezoidal frame contacts the top of the L-shaped long plate. Under the contact of the trapezoidal frame, the L-shaped long plate is caused to extend towards the outside of the cabinet. The L-shaped long plate pulls the sealing plate to slide synchronously along the top of the inner wall of the cabinet. At the same time, the L-shaped long plate drives the heating mechanism to move horizontally. The heating mechanism is turned on before the magnetic core is placed to complete the preheating of the grinding area.

[0012] According to the above technical solution, the anti-crack device includes an inclined plate, the front of which is hinged to the back of the heating mechanism by a torsion spring, a push plate is hinged to the bottom of the inclined plate, and a monitor is fixedly installed at the top edge of the push plate, with the top of the monitor moving through the top of the cabinet.

[0013] According to the above technical solution, the push plate has two round rods symmetrically and fixedly installed on its front side. A hollow frame is hinged inside the round rod through a torsion spring. A transmission frame is hinged to the bottom of the hollow frame. An activated carbon box is set inside the transmission frame. A friction wheel is rotatably installed on the inner side wall of the transmission frame. A transmission rod is fixedly installed on the side wall of the friction wheel. A telescopic plate is fixedly installed on the top of the activated carbon box inside the transmission frame. An L-shaped connecting plate is movably installed through the outer wall of the spiral groove of the transmission rod.

[0014] According to the above technical solution, the bottom of the transmission frame contacts the bottom of the inner wall of the cabinet, the outer wall of the friction wheel contacts the bottom of the inner wall of the cabinet, the outer wall of the transmission rod is provided with a non-self-locking spiral groove, the top side wall of the L-shaped connecting plate is fixedly installed on the outer wall surface of the telescopic end of the telescopic plate, when the symmetrically distributed heating mechanism slides horizontally, the heating mechanism drives the inclined plate to move synchronously, the inclined plate is limited by the push plate, at this time its own hinge shaft begins to rotate, when the inclined plate moves in an arc trajectory, it causes the push plate to drive the monitor to move upward along the inside of the top of the cabinet, thereby expanding the detection range of the monitor on the grinding area; the push plate drives the round rod to move upward, the round rod drives the hollow frame to move synchronously, the hollow frame Limited by the transmission frame, the hinge shaft rotates along the outer wall of the round rod. At this time, the hollow frame pulls the transmission frame to slide horizontally along the bottom of the inner wall of the cabinet. The transmission frame drives the friction wheel to move synchronously. The friction wheel starts to rotate due to the friction between it and the cabinet. The friction wheel drives the transmission rod to move synchronously. The transmission rod is driven by the non-self-locking spiral groove on its outer wall, which causes the L-shaped connecting plate to pull the telescopic plate to retract. At this time, the telescopic plate opens to cover the activated carbon box. The activated carbon gas begins to volatilize, and the negative pressure mechanism causes the activated carbon gas to continuously escape and surge upward through the square groove. When not being processed, the activated carbon box is covered by the telescopic plate.

[0015] This invention provides a fine grinding device for soft magnetic ferrite cores. It has the following beneficial effects: (1) The present invention uses an outer grinding wheel, an electric slide rail, a rotating mechanism, an inner grinding wheel, an electric lead screw, a negative pressure mechanism, a slide rail, a slider, a limiting roller, a slotted plate, and an assisting wheel to work together. Through the cooperation of the inner and outer grinding wheels, magnetic cores of different sizes can automatically complete the grinding of their inner and outer walls during the revolution, avoiding the need for multiple grinding and adjustment of a single magnetic core, effectively improving the grinding efficiency of the magnetic core. At the same time, the negative pressure mechanism avoids the residue and adhesion of grinding debris, and avoids scratches caused by debris. The rotating assisting wheel and limiting roller ensure that the end of the magnetic core that contacts the outer grinding wheel is always in a centered position against its outer wall. At the same time, it optimizes the stability of the magnetic core during the conveying process, avoids the phenomenon of the magnetic core tipping over due to lack of support at one end, and avoids the phenomenon of uneven grinding thickness.

[0016] (2) The present invention, through the setting of an error prevention device, through the cooperation of a negative pressure mechanism, a horizontal plate, an L-shaped pressure plate, a rotating rod, a trapezoidal frame, a sealing plate, an L-shaped long plate and a heating mechanism, and through the elastically set L-shaped pressure plate, enables the rotating rod to adapt to the pressing work for magnetic cores of different thicknesses, ensuring the stability of the magnetic core during the revolution grinding process, avoiding the magnetic core from tilting due to fluctuations during the grinding process, thereby reducing its overall regularity and preventing uneven thickness of the vertical surface of the magnetic core; by removing the sealing plate from the square slot of the cabinet, the heat inside the cabinet is caused to surge upward under the suction of the negative pressure mechanism, that is, as the grinding work begins, the heat inside the cabinet continuously heats the magnetic core, effectively increasing the overall temperature of the magnetic core, avoiding the change of internal stress of the cooled magnetic core due to the high temperature of grinding, and preventing the magnetic core from breaking.

[0017] (3) The present invention uses a crack prevention device, which works in conjunction with a heating mechanism, inclined plate, push plate, monitor, round rod, hollow frame, transmission frame, friction wheel, transmission rod, telescopic plate and L-shaped connecting plate. The monitor extends to constantly monitor whether the temperature difference of the grinding area per minute is greater than or less than 45 degrees. The output power of the heating mechanism is adjusted accordingly to avoid increasing the probability of cracks on the surface of the magnetic core due to a temperature difference greater than 45 degrees. The contraction of the telescopic plate allows the negative pressure mechanism to remove the gas inside the cabinet while using activated carbon gas to purify the oil or other harmful gases inside the cabinet, ensuring the cleanliness and safety of the discharged gas and preventing untreated gas from being inhaled by staff and thus harming their health. At the same time, the telescopic plate prevents activated carbon particles from oxidizing and sticking due to constant contact with the outside air, thus preventing the activated carbon particles from being continuously and meaninglessly consumed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the entire invention; Figure 2This is a cross-sectional schematic diagram of the entire invention; Figure 3 This is a schematic diagram of the internal structure of the circular plate of the present invention; Figure 4 This is a schematic diagram of the internal structure of the circular plate of the present invention from the left side. Figure 5 This is a schematic diagram of the bottom view of the internal structure of the circular plate of the present invention; Figure 6 This is a schematic diagram of the error prevention device of the present invention; Figure 7 This is a schematic diagram of the bottom view of the error prevention device of the present invention; Figure 8 This is a schematic diagram of the crack prevention device of the present invention from the rear view. Figure 9 This is a cross-sectional schematic diagram of the crack prevention device of the present invention.

[0019] In the diagram: 1. Cabinet; 2. Circular plate; 3. Fixed column; 4. Support platform; 5. Drive mechanism; 6. External grinding wheel; 7. Electric slide rail; 8. Rotation mechanism; 9. Internal grinding wheel; 10. Electric lead screw; 11. Negative pressure mechanism; 12. Slide rail; 13. Slider; 14. Limiting roller; 15. Slotted plate; 16. Assist wheel; 17. Error prevention device; 171. Horizontal plate; 172. L-shaped pressure plate; 173. Rotating rod; 174. Trapezoidal frame; 175. Sealing plate; 176. L-shaped long plate; 177. Heating mechanism; 18. Crack prevention device; 181. Inclined plate; 182. Push plate; 183. Monitor; 184. Round rod; 185. Hollow frame; 186. Transmission frame; 187. Friction wheel; 188. Transmission rod; 189. Telescopic plate; 1810. L-shaped connecting plate. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Please see Figures 1-9One embodiment of the present invention is: a fine grinding device for soft magnetic ferrite cores, comprising a cabinet 1, two fixed columns 3 symmetrically arranged on the top of the cabinet 1, two bearing platforms 4 fixedly installed through the outer wall of the top of the fixed columns 3, a drive mechanism 5 on the top of the bearing platforms 4, an outer grinding wheel 6 at the top edge of the cabinet 1, an electric slide rail 7 on the top of the inner wall of the cabinet 1, a rotating mechanism 8 slidably installed inside the electric slide rail 7, an inner grinding wheel 9 fixedly installed at the output end of the rotating mechanism 8, and an electric lead screw 10 rotatably installed on the top of the inner wall of the drive mechanism 5. A negative pressure mechanism 11 is slidably installed through the outer wall of the moving lead screw 10. An error prevention device 17 is set around the negative pressure mechanism 11 to ensure stable grinding of the magnetic core. An anti-crack device 18 is set around the error prevention device 17 to monitor the temperature of the grinding area. Two slide rails 12 are symmetrically and fixedly installed on the top of the cabinet 1. A slider 13 is slidably installed inside the two slide rails 12 by springs. A limit roller 14 is rotatably installed on the top of the slider 13. A slotted plate 15 is fixedly installed on the top of the cabinet 1. Several auxiliary wheels 16 are equidistantly and rotatably installed inside the slotted plate 15.

[0022] Two square slots are symmetrically opened on the top of the cabinet 1. A circular plate 2 is set at the center of the top of the cabinet 1. The outer grinding wheel 6 rotates clockwise by the output end of the external motor, and the inner grinding wheel 9 rotates counterclockwise. The limiting roller 14 is used to ensure that the magnetic core is always in the center position during the movement. The rotating assist wheel 16 effectively reduces the friction loss generated during the movement of the magnetic core.

[0023] The outer wall of the electric lead screw 10 is a non-self-locking spiral groove. The top outer wall of the negative pressure mechanism 11 is slidably installed on the inner wall of the drive mechanism 5. The limiting roller 14 is located on both sides of the outer grinding wheel 6, and the slotted plate 15 is located on both sides of the inner grinding wheel 9.

[0024] Through the cooperation of the inner grinding wheel 9 and the outer grinding wheel 6, magnetic cores of different sizes can automatically complete the grinding of their inner and outer walls during the revolution, avoiding the need for multiple grinding and adjustments for a single magnetic core, effectively improving the grinding efficiency of the magnetic core. At the same time, the negative pressure mechanism 11 prevents grinding debris from remaining and adhering, avoiding scratches caused by debris. The rotating assist wheel 16 and the limiting roller 14 ensure that the end of the magnetic core that contacts the outer grinding wheel 6 is always in a centered position against its outer wall, while optimizing the stability of the magnetic core during the conveying process, preventing the magnetic core from tipping over due to lack of support, and avoiding uneven grinding thickness.

[0025] In use, place one end of the magnetic core to be processed on the bottom surface of the inner grinding wheel 9. The electric slide rail 7 then activates, causing the rotating mechanism 8 to slide closer to the outer grinding wheel 6. The rotating mechanism 8 drives the inner grinding wheel 9 to move synchronously, which in turn drives the magnetic core to move horizontally until its outer wall contacts the grinding surface of the outer grinding wheel 6. Then, the electric lead screw 10 activates. As the lead screw 10 rotates, its non-self-locking spiral groove on its outer wall drives the top outer wall of the negative pressure mechanism 11 to slide downwards along the inside of the drive mechanism 5. This causes the negative pressure mechanism 11 to descend closer to the magnetic core, generating suction. The output of the rotating mechanism 8 and the output of the external motor then drive the inner grinding wheel 9 and the outer grinding wheel 6, respectively. Wheel 6 rotates counterclockwise and clockwise, driving the magnetic core to gradually revolve and grind. Simultaneously, the negative pressure mechanism 11 removes the debris generated during grinding. When the magnetic core moves horizontally through the inner grinding wheel 9, its bottom contacts the outer wall of the assist wheel 16. With the slotted plate 15 limiting the assist wheel 16, friction is generated between the assist wheel 16 and the bottom of the magnetic core, causing the assist wheel 16 to contact the magnetic core in a rotating posture. At the same time, the outer walls of both ends of the magnetic core contact and abut against the outer wall of the limiting roller 14. The limiting roller 14 causes the slider 13 to slide horizontally inside the slide rail 12 to adapt to the size of the magnetic core. The outer wall of the revolving magnetic core contacts the outer wall of the limiting roller 14, causing the limiting roller 14 to revolve at the top of the slider 13.

[0026] According to the above embodiment, the cooperation between the inner grinding wheel 9 and the outer grinding wheel 6 enables magnetic cores of different sizes to automatically complete the grinding of their inner and outer walls during the revolution, avoiding the need for multiple grinding and adjustments of a single magnetic core, effectively improving the grinding efficiency of the magnetic core. At the same time, the negative pressure mechanism 11 prevents grinding debris from remaining and adhering, avoiding scratches caused by debris. The rotating assist wheel 16 and the limiting roller 14 ensure that the end of the magnetic core that contacts the outer grinding wheel 6 is always in a centered position against its outer wall, while optimizing the stability of the magnetic core during the conveying process, preventing the magnetic core from tipping over due to lack of support at one end, and avoiding uneven grinding thickness.

[0027] Please see Figures 1-9 Based on the above embodiments, another embodiment of the present invention further includes an error prevention device 17; The error prevention device 17 includes two horizontal plates 171. Both horizontal plates 171 are slidably installed on the outer wall of the fixed column 3. The top of the horizontal plate 171 near the drive mechanism 5 is located on the bottom movement trajectory of the negative pressure mechanism 11. An L-shaped pressure plate 172 is slidably installed inside the horizontal plate 171 through a spring. The bottom end of the L-shaped pressure plate 172 has an installation groove. A rotating rod 173 is rotatably installed inside the installation groove of the L-shaped pressure plate 172.

[0028] A trapezoidal frame 174 is fixedly installed on the side wall of the horizontal plate 171 away from the fixed column 3. A sealing plate 175 is slidably installed on the top of the inner wall of the cabinet 1 via a spring. An L-shaped long plate 176 is slidably installed through the inside of the cabinet 1. The bottom of the sealing plate 175 is fixedly installed on the top surface of the bottom end of the L-shaped long plate 176. A heating mechanism 177 is fixedly installed on the bottom of the L-shaped long plate 176.

[0029] The baffle 175 is located directly below the square groove, the top of the L-shaped plate 176 near the fixed column 3 is located on the inclined movement trajectory of the trapezoidal frame 174, and the bottom of the heating mechanism 177 is slidably installed on the bottom of the inner wall of the cabinet 1.

[0030] The L-shaped pressure plate 172, with its flexible design, enables the rotating rod 173 to adapt to the pressing work of magnetic cores of different thicknesses, ensuring the stability of the magnetic core during the revolution and grinding process. This prevents the magnetic core from tilting or fluctuating during grinding, thus reducing its overall regularity and preventing uneven thickness on the vertical surface of the magnetic core. By removing the obstruction of the square slot of the cabinet 1 by the baffle plate 175, the heat inside the cabinet 1 is allowed to surge upward under the suction of the negative pressure mechanism 11. That is, as the grinding work begins, the heat inside the cabinet 1 continuously heats the magnetic core, effectively raising the overall temperature of the magnetic core. This prevents changes in the internal stress of the cooled magnetic core due to the high temperature of grinding, thus preventing the magnetic core from breaking.

[0031] In use, when the negative pressure mechanism 11 moves downward, it contacts and presses the horizontal plate 171 to slide downward along the outer wall of the fixed column 3. As the horizontal plate 171 drives the L-shaped pressure plate 172 to move downward, the L-shaped pressure plate 172 drives the rotating rod 173 to move synchronously. When the circumferential surface of the rotating rod 173 contacts the top of the magnetic core, it generates a resisting force. At this time, the L-shaped pressure plate 172 stops moving downward, and the inside of the horizontal plate 171 slides downward along the outer side wall of the L-shaped pressure plate 172. The rotating rod 173, which is rotated, reduces the frictional resistance encountered by the magnetic core during its revolution. To avoid wear caused by increased magnetic core rotation due to pressure; when the horizontal plate 171 drives the trapezoidal frame 174 to move downward, the inclined surface of the trapezoidal frame 174 contacts the top of the L-shaped long plate 176. Under the contact of the trapezoidal frame 174, the L-shaped long plate 176 is caused to extend outward from the cabinet 1. The L-shaped long plate 176 pulls the sealing plate 175 to slide synchronously along the top of the inner wall of the cabinet 1. At the same time, the L-shaped long plate 176 drives the heating mechanism 177 to move horizontally. The heating mechanism 177 is turned on before the magnetic core is placed to complete the preheating of the grinding area.

[0032] According to the above embodiment, the L-shaped pressure plate 172, which is set elastically, enables the rotating rod 173 to adapt to the pressing work of magnetic cores of different thicknesses, ensuring the stability of the magnetic core during the revolution grinding process, avoiding the magnetic core from tilting due to fluctuations during the grinding process, thereby reducing its overall regularity and preventing uneven thickness on the vertical surface of the magnetic core; by removing the obstruction of the square slot of the cabinet 1 by the baffle plate 175, the heat inside the cabinet 1 is caused to surge upward under the suction of the negative pressure mechanism 11. That is, as the grinding work begins, the heat inside the cabinet 1 continuously heats the magnetic core, effectively increasing the overall temperature of the magnetic core, preventing the internal stress of the cooled magnetic core from changing due to the high temperature of grinding, and preventing the magnetic core from breaking.

[0033] Please see Figures 1-9 Based on the above embodiments, another embodiment of the present invention further includes a crack prevention device 18; The anti-crack device 18 includes an inclined plate 181. The front of the inclined plate 181 is hinged to the back of the heating mechanism 177 by a torsion spring. A push plate 182 is hinged to the bottom of the inclined plate 181. A monitor 183 is fixedly installed at the top edge of the push plate 182. The top of the monitor 183 moves through the top of the cabinet 1.

[0034] The push plate 182 has two round rods 184 symmetrically mounted on its front. A hollow frame 185 is hinged to the inside of the round rod 184 through a torsion spring. A transmission frame 186 is hinged to the bottom of the hollow frame 185. An activated carbon box is set inside the transmission frame 186. A friction wheel 187 is rotatably mounted on the inner side wall of the transmission frame 186. A transmission rod 188 is fixedly mounted on the side wall of the friction wheel 187. A telescopic plate 189 is fixedly mounted on the top of the activated carbon box inside the transmission frame 186. An L-shaped connecting plate 1810 is movably mounted through the outer wall of the spiral groove of the transmission rod 188.

[0035] The bottom of the transmission frame 186 contacts the bottom of the inner wall of the cabinet 1, the outer wall of the friction wheel 187 contacts the bottom of the inner wall of the cabinet 1, the outer wall of the transmission rod 188 is provided with a non-self-locking spiral groove, and the top side wall of the L-shaped connecting plate 1810 is fixedly installed on the outer wall surface of the telescopic end of the telescopic plate 189.

[0036] By extending the monitor 183, the temperature difference of the grinding area per minute is constantly monitored to see if it is greater than or less than 45 degrees Celsius. The output power of the heating mechanism 177 is adjusted accordingly to avoid increasing the probability of cracks on the magnetic core surface due to a temperature difference greater than 45 degrees Celsius. By contracting the telescopic end of the telescopic plate 189, the negative pressure mechanism 11 removes the gas inside the cabinet 1 while using activated carbon gas to purify the oil or other harmful gases inside the cabinet 1, ensuring the cleanliness and safety of the discharged gas and preventing untreated gas from being inhaled by staff and thus harming their health. At the same time, the telescopic plate 189 prevents the activated carbon particles from oxidizing and sticking together due to constant contact with the outside air, thus preventing the continuous and meaningless loss of activated carbon particles.

[0037] In use, when the symmetrically distributed heating mechanisms 177 slide horizontally, the heating mechanisms 177 drive the inclined plate 181 to move synchronously. The inclined plate 181 is limited by the push plate 182, and at this time, its own hinge shaft begins to rotate. When the inclined plate 181 moves in an arc trajectory, it causes the push plate 182 to drive the monitor 183 to move upward along the inside of the top of the cabinet 1, thereby expanding the detection range of the monitor 183 on the grinding area. The push plate 182 drives the round rod 184 to move upward, and the round rod 184 drives the hollow frame 185 to move synchronously. The hollow frame 185 is limited by the transmission frame 186, causing its own hinge shaft to rotate along the outer wall of the round rod 184. At this time, the hollow frame 185 pulls the transmission... The frame 186 slides horizontally along the bottom of the inner wall of the cabinet 1. The transmission frame 186 drives the friction wheel 187 to move synchronously. The friction wheel 187 starts to rotate due to the friction between it and the cabinet 1. The friction wheel 187 drives the transmission rod 188 to move synchronously. The transmission rod 188 is driven by the non-self-locking spiral groove on its outer wall, which causes the L-shaped connecting plate 1810 to pull the telescopic end of the telescopic plate 189 to retract. At this time, the telescopic end of the telescopic plate 189 opens to cover the activated carbon box. At this time, the activated carbon gas begins to volatilize, and the negative pressure mechanism 11 causes the activated carbon gas to continuously escape and surge upward through the square groove. When not being processed, the activated carbon box is covered by the telescopic plate 189.

[0038] According to the above embodiment, by extending the monitor 183, the temperature difference per minute in the grinding area is constantly monitored to see if it is greater than or less than 45 degrees Celsius. The output power of the heating mechanism 177 is adjusted accordingly to avoid increasing the probability of cracks on the magnetic core surface due to a temperature difference greater than 45 degrees Celsius. By contracting the telescopic end of the telescopic plate 189, the negative pressure mechanism 11 can purify the oil or other harmful gases inside the cabinet 1 by relying on activated carbon gas while extracting the gas inside the cabinet 1. This ensures the cleanliness and safety of the discharged gas and prevents untreated gas from being inhaled by staff, thus protecting their health. At the same time, the telescopic plate 189 prevents the activated carbon particles from oxidizing and sticking due to constant contact with the outside air, thus preventing the activated carbon particles from being continuously and meaninglessly wasted.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A densification grinding device for soft magnetic ferrite cores, comprising a cabinet (1), characterized in that: The top of the cabinet (1) is symmetrically provided with two fixed columns (3). The top outer wall of the fixed columns (3) is penetrated and fixedly installed with two support platforms (4). The top of the support platforms (4) is provided with a drive mechanism (5). The top edge of the cabinet (1) is provided with an outer grinding wheel (6). The top of the inner wall of the cabinet (1) is provided with an electric slide rail (7). The electric slide rail (7) is slidably installed with a rotating mechanism (8) inside. The output end of the rotating mechanism (8) is fixedly installed with an inner grinding wheel (9). The top of the inner wall of the drive mechanism (5) is rotatably installed with an electric lead screw (10). The outer wall of the electric lead screw (10) is penetrated and slidably installed. The cabinet (1) is equipped with a negative pressure mechanism (11). The negative pressure mechanism (11) is surrounded by an error prevention device (17) to ensure stable grinding of the magnetic core. The error prevention device (17) is surrounded by an anti-crack device (18) to monitor the temperature of the grinding area. The cabinet (1) has two slide rails (12) symmetrically and fixedly installed on its top. The two slide rails (12) are each equipped with a slider (13) that is slidably installed inside by a spring. The top of the slider (13) is rotatably equipped with a limit roller (14). The cabinet (1) has a slotted plate (15) fixedly installed on its top. The slotted plate (15) has several equidistant and rotatably installed auxiliary wheels (16) inside.

2. The densification grinding device for a soft magnetic ferrite core according to claim 1, characterized in that: The cabinet (1) has two square slots symmetrically opened on the top. A ring plate (2) is set at the center of the top of the cabinet (1). The outer grinding wheel (6) rotates clockwise by the output end of the external motor. The inner grinding wheel (9) rotates counterclockwise. The limiting roller (14) is used to ensure that the magnetic core is always in the center position during the movement. The rotating assist wheel (16) effectively reduces the friction loss generated during the movement of the magnetic core.

3. The densification grinding device for a soft magnetic ferrite core according to claim 2, characterized in that: The outer wall of the electric lead screw (10) is a non-self-locking spiral groove. The top outer wall of the negative pressure mechanism (11) is slidably installed on the inner wall of the drive mechanism (5). The limiting roller (14) is located on both sides of the outer grinding wheel (6). The slotted plate (15) is located on both sides of the inner grinding wheel (9).

4. The densification grinding device for a soft magnetic ferrite core according to claim 3, characterized in that: The error prevention device (17) includes two horizontal plates (171). Both horizontal plates (171) are slidably installed inside the fixed column (3) with the top of the horizontal plate (171) near the drive mechanism (5) located on the bottom movement trajectory of the negative pressure mechanism (11). An L-shaped pressure plate (172) is slidably installed inside the horizontal plate (171) with a spring passing through it. An installation groove is provided at the bottom of the L-shaped pressure plate (172). A rotating rod (173) is rotatably installed inside the installation groove of the L-shaped pressure plate (172).

5. The densification grinding device for a soft magnetic ferrite core according to claim 4, characterized in that: A trapezoidal frame (174) is fixedly installed on the side wall of the horizontal plate (171) away from the fixed column (3). A sealing plate (175) is slidably installed on the top of the inner wall of the cabinet (1) by a spring. An L-shaped long plate (176) is slidably installed through the inside of the cabinet (1). The bottom of the sealing plate (175) is fixedly installed on the top surface of the bottom end of the L-shaped long plate (176). A heating mechanism (177) is fixedly installed on the bottom of the L-shaped long plate (176).

6. The densification grinding device for a soft magnetic ferrite core according to claim 5, characterized in that: The sealing plate (175) is located directly below the square groove, the top of the L-shaped long plate (176) near the fixed column (3) is located on the inclined movement trajectory of the trapezoidal frame (174), and the bottom of the heating mechanism (177) is slidably installed on the bottom of the inner wall of the cabinet (1).

7. The densification grinding device for a soft magnetic ferrite core according to claim 6, characterized in that: The anti-crack device (18) includes an inclined plate (181), the front of which is hinged to the back of the heating mechanism (177) by a torsion spring. A push plate (182) is hinged to the bottom of the inclined plate (181), and a monitor (183) is fixedly installed at the top edge of the push plate (182). The top of the monitor (183) moves through the top of the cabinet (1).

8. The densification grinding device for a soft magnetic ferrite core according to claim 7, characterized in that: The push plate (182) has two round rods (184) fixedly installed on its front side. A hollow frame (185) is hinged to the inside of the round rod (184) through a torsion spring. A transmission frame (186) is hinged to the bottom of the hollow frame (185). An activated carbon box is set inside the transmission frame (186). A friction wheel (187) is rotatably installed on the inner side wall of the transmission frame (186). A transmission rod (188) is fixedly installed on the side wall of the friction wheel (187). A telescopic plate (189) is fixedly installed on the top of the activated carbon box inside the transmission frame (186). An L-shaped connecting plate (1810) is movably installed through the outer wall of the spiral groove of the transmission rod (188).

9. The densification grinding device for a soft magnetic ferrite core according to claim 8, characterized in that: The bottom of the transmission frame (186) is in contact with the bottom of the inner wall of the cabinet (1), the outer wall of the friction wheel (187) is in contact with the bottom of the inner wall of the cabinet (1), the outer wall of the transmission rod (188) is provided with a non-self-locking spiral groove, and the top side wall of the L-shaped connecting plate (1810) is fixedly installed on the outer wall surface of the telescopic end of the telescopic plate (189).

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