Magnet ring inner circle chamfering device and chamfering method

Abstract

The invention provides a magnetic ring inner circle chamfering device and a chamfering method. The chamfering device comprises a feeding channel, a position sensor, a chamfering grinding wheel assembly, a moving assembly, a blocking assembly and a discharging channel. The moving assembly comprises a moving drive and a moving track arranged at the movable end of the moving drive, the moving drive is used for driving the moving track to be close to or away from the chamfering grinding wheel assembly, and the feeding channel, the moving track and the discharging channel are sequentially in butt joint. The blocking assembly comprises a blocking driver and a blocking plate, the blocking plate is connected with the driving end of the blocking driver, and the blocking plate is used for keeping the magnetic ring in the moving track; the position sensor is used for detecting the position of the magnetic ring and electrically connected with the moving drive and the blocking assembly. Automatic chamfering of the magnetic ring can be achieved, and the chamfering efficiency of the inner circle of the magnetic ring is improved.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic ring chamfering, and in particular to a magnetic ring inner circle chamfering device and a chamfering method. Background Art

[0002] Permanent ferrite magnetic rings are widely used in the electroacoustic and home appliance industries as a magnetic field source to provide a constant magnetic field. In order to enhance the surface magnetic force and improve the mechanical strength of the product, iron sheets are pasted on the surface of the magnetic ring. When pasting the iron sheets, the inner edges of the magnetic ring are prone to collapse and fall off, resulting in an assembly gap with the iron sheet, affecting the sealing of the magnetic field. Therefore, the inner circle of the magnetic ring needs to be chamfered to avoid this problem. The key production processes of permanent ferrite magnetic rings are: ball milling - molding - sintering - grinding - cleaning - sorting.

[0003] At present, there are two main methods for chamfering the inner circle of permanent ferrite magnetic rings in the industry: one is to achieve chamfering of the formed green body through the design of the forming mold, but the forming chamfer has defects such as burrs and unevenness at the chamfering position, which cannot meet the requirements of high-precision chamfering; the other is to manually hold the magnetic ring and chamfer it on a high-speed rotating grinding wheel. This method has high labor costs, low chamfering efficiency, and great safety hazards.

[0004] The invention with publication number CN113894643A discloses a quartz ring inner circle chamfering machine and a method of using the same. The device uses a clamping jaw assembly to simulate a human hand fixing a magnetic ring, and then uses a chamfering grinding wheel to chamfer the inner circle of the magnetic ring. However, the device requires manual installation of the magnetic ring into the clamping jaw assembly, and there is no magnetic ring input and output device, so automatic chamfering cannot be achieved, and the chamfering efficiency is very low. Summary of the invention

[0005] The purpose of the present invention is to solve the defects in the prior art and provide a magnetic ring inner circle chamfering device and a chamfering method, so as to realize automatic chamfering of the magnetic ring and improve the efficiency of chamfering the inner circle of the magnetic ring.

[0006] To achieve the above-mentioned purpose, the present invention provides a magnetic ring inner circle chamfering device, comprising a feed channel, a position sensor, a chamfering grinding wheel assembly, a moving assembly, a blocking assembly and a discharge channel;

[0007] The moving assembly includes a moving drive and a moving track arranged at a movable end of the moving drive, wherein the moving drive is used to drive the moving track to approach or move away from the chamfering grinding wheel assembly, and the feeding channel, the moving track and the discharging channel are connected in sequence;

[0008] The blocking assembly includes a blocking drive and a blocking plate, wherein the blocking plate is connected to the driving end of the blocking drive, and the blocking plate is used to keep the magnetic ring in the moving track;

[0009] The position sensor is used to detect the position of the magnetic ring, and the position sensor is electrically connected to the mobile drive and the blocking component respectively.

[0010] The magnetic ring inner circle chamfering device can be installed between the magnetic ring grinding machine and the cleaning machine. The feed channel is used to connect the magnetic ring grinding machine and the moving component, the discharge channel is used to connect the moving component and the cleaning machine, and the moving track is used to connect the feed channel and the discharge channel. One side of the moving track is fixed on the moving drive.

[0011] The magnetic ring enters the feed channel from the front end grinding process. When the magnetic ring enters the moving track through the position sensor, the position sensor is triggered, and the blocking drive starts working, driving the blocking plate forward to block the exit end of the moving track, so that the magnetic ring remains in the moving track. The mobile drive starts working, driving the moving track and the magnetic ring in the moving track forward, and the magnetic ring contacts the chamfering grinding wheel assembly to complete the chamfering of the inner circle of the magnetic ring. The blocking drive drives the blocking plate backward to move the blocking plate away from the end of the moving track. At the same time, the mobile drive drives the moving track and the magnetic ring backward until the moving track is docked with the discharge channel. After the magnetic ring rolls out of the moving track, it enters the rear end cleaning process through the discharge channel. The magnetic ring inner circle chamfering device of the present invention can realize automatic chamfering, improve the efficiency of the magnetic ring inner circle chamfering, can work stably for a long time, and has low equipment cost and energy consumption.

[0012] The blocking drive stroke must be greater than the moving drive stroke. When installing, ensure that when both drives are moving forward, the blocking plate can block the magnetic ring in the moving track. When both drives are moving backward, the blocking plate cannot block the magnetic ring in the moving track. Set a delay between the forward movement of the blocking drive and the forward movement of the moving drive to ensure that the moving drive moves forward only after all the magnetic rings enter the moving track.

[0013] Optionally, a chamfering circular hole is provided on the side wall of the movable track adjacent to the chamfering grinding wheel assembly.

[0014] A chamfered circular hole is provided on the side of the moving track away from the moving drive, and the diameter of the chamfered circular hole is between the outer diameter and the inner diameter of the magnetic ring. When the moving drive drives the moving track forward, the magnetic ring on the moving track can contact the chamfering grinding wheel assembly through the chamfered circular hole, and the magnetic ring completes the inner chamfering. The side wall of the moving track with the chamfered circular hole is higher than the side wall on the other side thereof, which can prevent the magnetic ring from falling from the moving track.

[0015] Optionally, the chamfering grinding wheel assembly includes a grinding wheel drive and a chamfering grinding wheel, the chamfering grinding wheel is connected to the driving end of the grinding wheel drive, and the chamfering grinding wheel is located on one side of the movable track.

[0016] The grinding wheel drive can drive the chamfering grinding wheel to rotate at high speed, and the rotation direction of the chamfering grinding wheel is consistent with the passing direction of the magnetic ring. The chamfering grinding wheel is a spherical grinding wheel with a grinding wheel shaft, and the entire spherical surface of the spherical grinding wheel is a grinding surface, and the grinding efficiency is high.

[0017] Optionally, the grinding wheel drive is connected to the chamfering grinding wheel through a coupling to ensure that the grinding wheel drive drives the chamfering grinding wheel to rotate.

[0018] Optionally, the chamfering grinding wheel assembly further includes a grinding wheel drive support rod, and the grinding wheel drive is arranged on the grinding wheel drive support rod.

[0019] A waist hole is provided at the top of the grinding wheel drive support rod, and a group of connecting pieces are provided at the relative position of the grinding wheel drive. The connecting piece is connected to the waist hole by adjusting the knob, and the height and angle of the grinding wheel drive support rod are adjusted to align the center of the chamfering grinding wheel and the magnetic ring.

[0020] Optionally, a cooling pipe for dripping coolant onto the chamfering grinding wheel is further provided on one side of the chamfering grinding wheel, and the cooling pipe is connected to the coolant delivery device.

[0021] The grinding wheel drive drives the chamfering grinding wheel to rotate at high speed. A cooling pipe is installed behind the chamfering grinding wheel to provide a small stream of water. After flowing to the spherical surface of the chamfering grinding wheel, a water film can be generated on the surface of the high-speed rotating chamfering grinding wheel, which is used to cool the chamfering grinding wheel and remove dust generated by chamfering, thereby ensuring the heat dissipation effect of the chamfering grinding wheel.

[0022] Optionally, the magnetic ring inner circle chamfering device further comprises a support platform, the moving component and the blocking component are both arranged on the support platform, and the height and inclination angle of the support platform are both adjustable.

[0023] The support platform is arranged on one side of the feeding channel and the discharging channel, and the position sensor, the accelerating air nozzle, the moving component and the blocking component are all arranged on the support platform.

[0024] Optionally, a retractable support column is provided under the support platform.

[0025] Support columns are provided under the support table, and the support columns are all retractable structures, so that the height and inclination angle of the support table can be adjusted to ensure that the positions of the position sensor, acceleration air nozzle, moving component and blocking component can be adjusted according to the positions of the feed channel and the discharge channel.

[0026] Optionally, the feed channel, the movable track and the discharge channel are all arranged at an angle, and the feed channel, the movable track and the discharge channel are connected in sequence from high to low.

[0027] The feed channel is supported by a feed support rod with adjustable height, and the discharging channel is supported by a discharging support rod with adjustable height. By adjusting the height of the feed support rod, the discharging support rod and the support column, the height and inclination angle of the feed channel, the moving track and the discharging channel can be adjusted, so that the feed channel, the moving track and the discharging channel are inclined higher in the front and lower in the back, and are smoothly connected with each other, so that the magnetic ring can pass freely and quickly.

[0028] The present invention also provides a method for chamfering the inner circle of a magnetic ring, comprising the following steps:

[0029] S1, the magnetic ring enters the feed channel;

[0030] S2. When the magnetic ring passes through the position sensor and enters the moving track, the position sensor is triggered. At this time, the blocking drive drives the blocking plate forward to block the exit end of the moving track, so that the magnetic ring remains in the moving track;

[0031] S3, the mobile drive drives the mobile track and the magnetic ring forward, and the magnetic ring contacts the chamfering grinding wheel assembly to complete the inner chamfering of the magnetic ring;

[0032] S4, the blocking drive drives the blocking plate to retreat, and the blocking plate moves away from the end of the moving track. At the same time, the moving drive drives the moving track and the magnetic ring to retreat until the moving track docks with the discharge channel;

[0033] S5. The magnetic ring rolls out from the moving track and enters the discharging channel.

[0034] Beneficial effects:

[0035] 1. The magnetic ring inner chamfering device of the present invention can be installed between a magnetic ring grinding machine and a cleaning machine, the feed channel is used to connect the magnetic ring grinding machine and the moving component, the discharge channel is used to connect the moving component and the cleaning machine, the moving track is used to connect the feed channel and the discharge channel, and one side of the moving track is fixed on the moving drive.

[0036] The magnetic ring enters the feed channel from the front end grinding process. When the magnetic ring enters the moving track through the position sensor, the position sensor is triggered, and the blocking drive starts working, driving the blocking plate forward to block the exit end of the moving track, so that the magnetic ring remains in the moving track. The mobile drive starts working, driving the moving track and the magnetic ring in the moving track forward, and the magnetic ring contacts the chamfering grinding wheel assembly to complete the chamfering of the inner circle of the magnetic ring. The blocking drive drives the blocking plate backward to move the blocking plate away from the end of the moving track. At the same time, the mobile drive drives the moving track and the magnetic ring backward until the moving track is docked with the discharge channel. After the magnetic ring rolls out of the moving track, it enters the rear end cleaning process through the discharge channel. The magnetic ring inner circle chamfering device of the present invention can realize automatic chamfering, improve the efficiency of the magnetic ring inner circle chamfering, can work stably for a long time, and has low equipment cost and energy consumption.

[0037] 2. A chamfered circular hole is provided on the side wall of the movable track adjacent to the chamfering grinding wheel assembly of the present invention, and the diameter of the chamfered circular hole is between the outer diameter and the inner diameter of the magnetic ring. When the movable track is driven forward by the mobile driver, the magnetic ring on the movable track can contact the chamfering grinding wheel assembly through the chamfered circular hole, and the magnetic ring completes the inner chamfering. The side wall of the movable track with the chamfered circular hole is higher than the side wall on the other side thereof, which can prevent the magnetic ring from falling from the movable track.

[0038] 3. The chamfering grinding wheel assembly of the present invention comprises a grinding wheel drive and a chamfering grinding wheel, wherein the chamfering grinding wheel is connected to the driving end of the grinding wheel drive and is located on one side of the moving track. The grinding wheel drive can drive the chamfering grinding wheel to rotate at high speed, and the rotation direction of the chamfering grinding wheel is consistent with the direction in which the magnetic ring passes. The chamfering grinding wheel is a spherical grinding wheel with a grinding wheel shaft, and the entire spherical surface of the spherical grinding wheel is a grinding surface, and the grinding efficiency is high.

[0039] 4. The feed channel, moving track and discharging channel of the present invention are all arranged at an angle, and the feed channel, moving track and discharging channel are connected in sequence from high to low, and the moving assembly and the blocking assembly are both arranged on a support table, and the height and inclination angle of the support table are adjustable, and a retractable support column is arranged under the support table. The feed channel is supported by a feed support rod with an adjustable height, and the discharging channel is supported by a discharging support rod with an adjustable height. By adjusting the height of the feed support rod, the discharging support rod and the support column, the height and inclination angle of the feed channel, the moving track and the discharging channel can be adjusted, so that the feed channel, the moving track and the discharging channel are inclined with the front being high and the back being low, and they are smoothly connected with each other, so that the magnetic ring can pass freely and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0041] Figure 1 It is a structural diagram of the magnetic ring inner circle chamfering device disclosed in the present invention;

[0042] Figure 2 It is a partially enlarged structural diagram of the magnetic ring inner circle chamfering device disclosed in the present invention;

[0043] Figure 3 It is a partially enlarged structural diagram of another viewing angle of the magnetic ring inner circle chamfering device disclosed in the present invention;

[0044] Figure 4 It is a structural diagram of the cooperation between the moving assembly and the chamfering grinding wheel assembly in the magnetic ring inner circle chamfering device disclosed in the present invention;

[0045] Figure 5 It is a structural diagram of a moving component in the magnetic ring inner circle chamfering device disclosed in the present invention;

[0046] Figure 6 It is a structural diagram of the moving track in the magnetic ring inner circle chamfering device disclosed in the present invention;

[0047] Figure 7 It is a structural diagram of the blocking component in the magnetic ring inner circle chamfering device disclosed in the present invention.

[0048] Reference numerals:

[0049] Label name Label name 1 Workbench 5 Position Sensors 2 Feed channel 51 Accelerator nozzle 21 Feed support rod 6 Mobile Components 3 Chamfering wheel assembly 61 Mobile Drivers 31 Grinding wheel drive 62 Moving Track 32 Grinding wheel drive support rod 63 Chamfered round hole 33 Couplings 7 Blocking components 34 Chamfering grinding wheel 71 Block drive 35 Cooling pipe 72 Blocking plate 36 Adjustment knob 8 Discharge channel 4 Support table 81 Discharge support rod 41 Support column 9 Magnetic ring

[0050] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0053] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0054] See also Figure 1-7 , a magnetic ring inner circle chamfering device according to an embodiment of the present invention comprises a feed channel 2, a chamfering grinding wheel assembly 3, a moving assembly 6, a blocking assembly 7 and a discharge channel 8;

[0055] The moving assembly 6 includes a moving drive 61 and a moving track 62 arranged at the movable end of the moving drive 61, wherein the moving drive 61 is used to drive the moving track 62 to approach or move away from the chamfering grinding wheel assembly 3, and the feeding channel 2, the moving track 62 and the discharging channel 8 are connected in sequence.

[0056] The blocking assembly 7 includes a blocking drive 71 and a blocking plate 72, wherein the blocking plate 72 is connected to the driving end of the blocking drive 71, and the blocking plate 72 is used to keep the magnetic ring 9 in the moving track 62;

[0057] The position sensor 5 is used to detect the position of the magnetic ring 9 , and the position sensor 5 is electrically connected to the mobile drive 61 and the blocking component 7 respectively.

[0058] Specifically, the magnetic ring inner chamfering device can be installed between the magnetic ring grinding machine and the cleaning machine. The magnetic ring inner chamfering device includes a workbench 1, and the feed channel 2, the chamfering grinding wheel assembly 3, the moving assembly 6, the blocking assembly 7 and the discharge channel 8 are all arranged on the workbench 1. The feed channel 2 is used to connect the magnetic ring grinding machine and the moving assembly 6, and the discharge channel 8 is used to connect the moving assembly 6 and the cleaning machine. The width of the feed channel 2 and the discharge channel 8 is equal to the thickness of the magnetic ring 9 plus 2mm. The moving track 62 is used to connect the feed channel 2 and the discharge channel 8, and one side of the moving track 62 is fixed on the moving drive 61.

[0059] The magnetic ring 9 enters the feed channel 2 from the front grinding process. When the magnetic ring 9 enters the moving track 62 through the position sensor 5, the position sensor 5 is triggered, and the blocking drive 71 starts to work, driving the blocking plate 72 forward to block the exit end of the moving track 62, so that the magnetic ring 9 remains in the moving track 62. The moving drive 61 starts to work, driving the moving track 62 and the magnetic ring 9 in the moving track 62 forward, and the magnetic ring 9 contacts the chamfering grinding wheel assembly 3 to complete the chamfering of the inner circle of the magnetic ring 9. The blocking drive 71 drives the blocking plate 72 backward to move the blocking plate 72 away from the end of the moving track 62. At the same time, the moving drive 61 drives the moving track 62 and the magnetic ring 9 backward until the moving track 62 docks with the discharge channel 8. After the magnetic ring 9 rolls out of the moving track 62, it enters the rear cleaning process through the discharge channel 8.

[0060] The magnetic ring inner circle chamfering device of the present invention can realize automatic chamfering, improve the efficiency of magnetic ring inner circle chamfering, can work stably for a long time, and has low equipment cost and energy consumption.

[0061] Both the moving drive 61 and the blocking drive 71 are cylinders, and the stroke of the blocking drive 71 must be greater than the stroke of the moving drive 61. When installing, ensure that when both cylinders move forward, the blocking plate 72 can block the magnetic ring 9 in the moving track 62, and when both cylinders move backward, the blocking plate 72 cannot block the magnetic ring 9 in the moving track 62. A delay is set between the forward movement of the blocking drive 71 and the forward movement of the moving drive 61 to ensure that the moving drive 61 moves forward only after all the magnetic rings 9 enter the moving track 62.

[0062] The position sensor 5 can be a photoelectric switch, a proximity switch, etc., which is used to sense the position of the magnetic ring 9 and send a control signal. In this embodiment, a PNP infrared diffuse reflection photoelectric switch is used as the position sensor 5.

[0063] See also Figure 5 and 6In some embodiments of the present invention, a chamfering circular hole 63 is opened on the side wall of the movable track 62 adjacent to the chamfering grinding wheel assembly 3.

[0064] The length of the moving track 62 is consistent with the diameter of the magnetic ring 9, and the width is equal to the thickness of the magnetic ring 9 plus 2mm. A chamfered circular hole 63 is provided on the side of the moving track 62 away from the moving drive 61, and the diameter of the chamfered circular hole 63 is between the outer diameter and the inner diameter of the magnetic ring 9. When the moving drive 61 drives the moving track 62 forward, the magnetic ring 9 on the moving track 62 can contact the chamfering grinding wheel assembly 3 through the chamfered circular hole 63, and the magnetic ring 9 completes the inner chamfering. The side wall of the moving track 62 with the chamfered circular hole 63 is higher than the side wall on the other side thereof, which can prevent the magnetic ring 9 from falling from the moving track 62.

[0065] See also Figure 2-4 In some embodiments of the present invention, the chamfering grinding wheel assembly 3 includes a grinding wheel drive 31 and a chamfering grinding wheel 34 , the chamfering grinding wheel 34 is connected to the driving end of the grinding wheel drive 31 , and the chamfering grinding wheel 34 is located on one side of the moving track 62 .

[0066] In this embodiment, the grinding wheel drive 31 is a motor, and the chamfering grinding wheel 34 is a spherical grinding wheel with a grinding wheel shaft, the diameter of the spherical grinding wheel is equal to 1.5-2.5 times the inner diameter of the magnetic ring 9, the surface of the spherical grinding wheel has a 100-160 mesh diamond coating, the entire spherical surface of the spherical grinding wheel is a grinding surface, the grinding efficiency is high, the grinding wheel life is more than 400,000 pieces, and the chamfering efficiency is greater than 65 pieces / minute. The grinding wheel drive 31 can drive the chamfering grinding wheel 34 to rotate at a high speed, with a rotation speed of 3000 / min, and the rotation direction of the chamfering grinding wheel 34 is consistent with the direction of the magnetic ring passing.

[0067] In this embodiment, the dimensions of the magnetic ring 9 are an outer diameter of 50 mm, an inner diameter of 18 mm, and a thickness of 11 mm. A straight angle of 0.6 to 1.2 mm is required on the inner circle. The width of the feed channel 2 and the discharge channel 8 is designed to be 13 mm. The diameter of the chamfering grinding wheel 34 is designed to be 36 mm, and the surface of the grinding wheel is coated with 120-mesh corundum.

[0068] See also Figure 4 In some embodiments of the present invention, the grinding wheel drive 31 is connected to the chamfering grinding wheel 34 through a coupling 33 to ensure that the grinding wheel drive 31 drives the chamfering grinding wheel 34 to rotate.

[0069] See also Figure 3 and 4 In some embodiments of the present invention, the chamfering grinding wheel assembly 3 further includes a grinding wheel driving support rod 32 , and the grinding wheel drive 31 is disposed on the grinding wheel driving support rod 32 .

[0070] In this embodiment, a waist hole is provided at the top of the grinding wheel drive support rod 32, and a group of connecting plates are provided at the relative position of the grinding wheel drive 31. The connecting plates are connected to the waist hole by adjusting the knob 36, and the height and angle of the grinding wheel drive support rod 32 are adjusted to align the center of the chamfering grinding wheel 34 and the magnetic ring 9.

[0071] See also Figure 2 and 3 In some embodiments of the present invention, a cooling pipe 35 for dripping cooling liquid on the chamfering grinding wheel 34 is further provided on one side of the chamfering grinding wheel 34, and the cooling pipe 35 is connected to the cooling liquid delivery device.

[0072] In this embodiment, the grinding wheel drive 31 drives the chamfering grinding wheel 34 to rotate at high speed. A cooling pipe 35 is installed behind the chamfering grinding wheel 34 to provide a small stream of water. After flowing to the spherical surface of the chamfering grinding wheel 34, a water film can be generated on the surface of the high-speed rotating chamfering grinding wheel 34, which is used to cool the chamfering grinding wheel 34 and remove dust generated by chamfering, thereby ensuring the heat dissipation effect of the chamfering grinding wheel 34.

[0073] See also Figure 2 In some embodiments of the present invention, the magnetic ring inner circle chamfering device further includes a support platform 4 , and the moving component 6 and the blocking component 7 are both arranged on the support platform 4 .

[0074] In this embodiment, the support platform 4 is arranged on one side of the feed channel 2 and the discharge channel 8, and the position sensor 5, the accelerating air nozzle 51, the moving component 6 and the blocking component 7 are all arranged on the support platform 4. The air outlet end of the accelerating air nozzle 51 is located above the feed channel 2, and the accelerating air nozzle 51 is connected to the air delivery device. The accelerating air nozzle 51 can help the magnetic ring 9 to quickly enter the moving track 62 by blowing air.

[0075] See also Figure 2 and 3 In some embodiments of the present invention, a retractable support column 41 is provided below the support platform 4.

[0076] In this embodiment, four support columns 41 are provided under the support platform 4, and the support columns 41 are all retractable telescopic rods, so that the height and inclination angle of the support platform 4 can be adjusted to ensure that the positions of the position sensor 5, the acceleration air nozzle 51, the moving component 6 and the blocking component 7 can be adjusted according to the positions of the feed channel 2 and the discharge channel 8.

[0077] See also Figure 1-3 In some embodiments of the present invention, the feed channel 2, the movable track 62 and the discharge channel 8 are all arranged inclined, and the feed channel 2, the movable track 62 and the discharge channel 8 are connected in sequence from high to low.

[0078] In this embodiment, the feed channel 2 is supported by two feed support rods 21 with adjustable heights, and the discharge channel 8 is supported by two discharge support rods 81 with adjustable heights. By adjusting the heights of the two feed support rods 21, the two discharge support rods 81 and the support platform 4, the height and inclination angle of the feed channel 2, the movable track 62 and the discharge channel 8 can be adjusted, so that the feed channel 2, the movable track 62 and the discharge channel 8 are inclined with a high front and a low back, and are smoothly connected with each other, so that the magnetic ring 9 can pass freely and quickly. The feed channel 2 is high in the front and low in the back, which can ensure that the magnetic ring 9 automatically enters the chamfering grinding wheel assembly 3. The track of the discharge channel 8 is high in the front and low in the back, which can ensure that the magnetic ring 9 automatically enters the cleaning machine after the chamfering is completed. The feed support rod 21 and the discharge support rod 81 are both retractable telescopic rods.

[0079] See also Figure 1-7 According to an embodiment of the present invention, a method for chamfering the inner circle of a magnetic ring comprises the following steps:

[0080] S1, the magnetic ring 9 enters the feed channel 2;

[0081] S2. When the magnetic ring 9 passes through the position sensor 5 and enters the moving track 62, the position sensor 5 is triggered. At this time, the blocking drive 71 drives the blocking plate 72 forward to block the exit end of the moving track 62, so that the magnetic ring 9 remains in the moving track 62.

[0082] S3, the moving drive 61 drives the moving track 62 and the magnetic ring 9 to move forward, and the magnetic ring 9 contacts the chamfering grinding wheel assembly 3 to complete the inner chamfering of the magnetic ring 9;

[0083] S4, the blocking drive 71 drives the blocking plate 72 to retreat, and the blocking plate 72 moves away from the end of the moving track 62. At the same time, the moving drive 61 drives the moving track 62 and the magnetic ring 9 to retreat until the moving track 62 is docked with the discharge channel 8;

[0084] S5. The magnetic ring 9 rolls out from the moving track 62 and enters the discharge channel 8.

[0085] In this embodiment, the steps are specifically as follows:

[0086] 1. The magnetic ring 9 enters the feed channel 2 from the front end grinding process;

[0087] 2. When the magnetic ring 9 passes through the position sensor 5 and enters the moving track 62, the position sensor 5 is triggered, and the blocking drive 71 starts to work, driving the blocking plate 72 to move forward and block the exit end of the moving track 62, so that the magnetic ring 9 remains in the moving track 62;

[0088] 3. After a delay of 0.2 seconds, the mobile drive 61 starts to work, driving the mobile track 62 and the magnetic ring 9 forward, and the magnetic ring 9 contacts the chamfering grinding wheel 34 through the chamfered circular hole 63, and the inner chamfering of the magnetic ring 9 is completed after 0.3 seconds;

[0089] 4. The blocking drive 71 drives the blocking plate 72 to retreat, so that the blocking plate 72 moves away from the end of the moving track 62. At the same time, the moving drive 61 drives the moving track 62 and the magnetic ring 9 to retreat until the moving track 62 is docked with the discharge channel 8.

[0090] 5. After the magnetic ring 9 rolls out from the moving track 62, it enters the rear-end cleaning process through the discharge channel 8.

[0091] When the moving track 62 is empty, the unchamfered magnetic ring 9 is fed from the feeding channel 2, and the above steps are repeated to chamfer the magnetic ring 9.

[0092] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A magnetic ring inner chamfering device, characterized in that: It includes a feeding channel, a position sensor, a chamfering grinding wheel assembly, a moving assembly, a blocking assembly and a discharging channel; The mobile assembly includes a mobile drive and a mobile track arranged at a movable end of the mobile drive, wherein the mobile drive is used to drive the mobile track to approach or move away from the chamfering grinding wheel assembly, and the feed channel, the mobile track and the discharge channel are connected in sequence; The blocking assembly includes a blocking drive and a blocking plate, wherein the blocking plate is connected to the driving end of the blocking drive, and the blocking plate is used to keep the magnetic ring in the moving track; The position sensor is used to detect the position of the magnetic ring, and the position sensor is electrically connected to the mobile drive and the blocking component respectively.

2. The magnetic ring inner chamfering device according to claim 1, characterized in that: A chamfering circular hole is provided on the side wall of the movable track adjacent to the chamfering grinding wheel assembly.

3. The magnetic ring inner chamfering device according to claim 1, characterized in that: The chamfering grinding wheel assembly comprises a grinding wheel drive and a chamfering grinding wheel, wherein the chamfering grinding wheel is connected to the driving end of the grinding wheel drive, and the chamfering grinding wheel is located on one side of the moving track.

4. The magnetic ring inner chamfering device according to claim 3, characterized in that: The grinding wheel drive is connected with the chamfering grinding wheel through a coupling.

5. The magnetic ring inner chamfering device according to claim 3, characterized in that: The chamfering grinding wheel assembly also includes a grinding wheel drive support rod, and the grinding wheel drive is arranged on the grinding wheel drive support rod.

6. The magnetic ring inner chamfering device according to claim 3, characterized in that: A cooling pipe for dripping cooling liquid onto the chamfering grinding wheel is also provided on one side of the chamfering grinding wheel, and the cooling pipe is connected to the cooling liquid conveying device.

7. The magnetic ring inner chamfering device according to any one of claims 1 to 6, characterized in that: The magnetic ring inner chamfering device also includes a support platform, the moving component and the blocking component are both arranged on the support platform, and the height and inclination angle of the support platform are both adjustable.

8. The magnetic ring inner chamfering device according to claim 7, characterized in that: A retractable support column is provided below the support platform.

9. The magnetic ring inner chamfering device according to any one of claims 1 to 6, characterized in that: The feed channel, the moving track and the discharge channel are all arranged obliquely, and the feed channel, the moving track and the discharge channel are connected in sequence from high to low.

10. A chamfering method based on the magnetic ring inner circle chamfering device according to any one of claims 1 to 9, characterized in that: The steps include: S1, the magnetic ring enters the feed channel; S2. When the magnetic ring passes through the position sensor and enters the moving track, the position sensor is triggered. At this time, the blocking drive drives the blocking plate forward to block the exit end of the moving track, so that the magnetic ring remains in the moving track; S3, the mobile drive drives the mobile track and the magnetic ring forward, and the magnetic ring contacts the chamfering grinding wheel assembly to complete the inner chamfering of the magnetic ring; S4, the blocking drive drives the blocking plate to retreat, and the blocking plate moves away from the end of the moving track. At the same time, the moving drive drives the moving track and the magnetic ring to retreat until the moving track docks with the discharge channel; S5. The magnetic ring rolls out from the moving track and enters the discharging channel.

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