A magnetizing device for magnetizing a magnetic signal wheel

Abstract

The present application relates to the field of signal wheel magnetization processing, and in particular to a magnetization device for magnetizing a magnetic signal wheel, comprising a magnetization module seat, a support assembly mounted on the magnetization module seat for carrying the magnetic signal wheel, a magnetization head mechanism located directly above the support assembly, and a tensioning assembly for tensioning and fixing the magnetic signal wheel; the support assembly comprises an axle seat mounted on the magnetization module seat, a main shaft fixed on the axle seat, a support cylinder sleeved on the outside of the main shaft, and a support disk fixed to an end of the support cylinder away from the axle seat and sleeved on the outside of the main shaft; the tensioning assembly comprises a tensioning member that slides on the main shaft and tensions and positions the magnetic signal wheel through its own deformation, a power source located directly below the axle seat, and a transmission part for connecting the tensioning member and the power source, wherein the tensioning member is higher than the upper surface of the support disk and lower than the upper end surface of the main shaft. The present application has the advantages of improving positioning effect and reducing magnetization deviation.

Description

Technical Field

[0001] The present application relates to the field of signal wheel magnetization processing, and in particular to a magnetization device for magnetizing a magnetic signal wheel. Background Art

[0002] The signal wheel is a crucial component of the automotive crankshaft. It works in conjunction with the crankshaft sensor, which reads the number of teeth to determine crankshaft position, effectively igniting the engine. With the rapid development of the automotive industry, conventional signal wheels are being replaced by magnetic signal wheels due to their complex manufacturing process.

[0003] The manufacturing complexity of a magnetic signal wheel is minimal; after processing, it requires only magnetization for immediate use. For details, please refer to Chinese Patent Publication No. CN208672660U, which discloses a magnetized rubber speed signal wheel comprising a wheel body, a magnetized rubber ring, and a Hall effect sensor. The wheel body comprises a main body and a mounting portion, which is circumferentially arranged around the edge of the main body. The magnetized rubber ring is fitted onto the mounting portion and comprises a strong magnetic segment and a weak magnetic segment. The strong and weak magnetic segments are connected to form a magnetic segment assembly, which surrounds the mounting portion to form the magnetized rubber ring. The Hall effect sensor's sensing head faces and is adjacent to the magnetized rubber ring.

[0004] According to the relevant technology, the magnetizing of the magnetic signal wheel is mainly carried out by using a magnetizing machine. Figure 1 The magnetizing machine includes a magnetizing platform mechanism 2 and a magnetizing head mechanism 3 located directly above the magnetizing platform mechanism 2. A central axis 28 for positioning the magnetic signal wheel 6 is installed on the upper surface of the magnetizing platform mechanism 2. During operation, the magnetizing head mechanism 3 moves downward and magnetizes the magnetic signal wheel 6.

[0005] However, the inventors have found, based on years of processing experience, that the traditional magnetizing machine has a poor effect in positioning the magnetic signal wheel, which can easily lead to magnetization deviation. Summary of the Invention

[0006] In order to improve the positioning effect and reduce the magnetization deviation, the present application provides a magnetization device for magnetizing the magnetic signal wheel.

[0007] The present application provides a magnetizing device for magnetizing a magnetic signal wheel, which adopts the following technical solution:

[0008] A magnetizing device for magnetizing a magnetic signal wheel, comprising a magnetizing module base, a support assembly mounted on the magnetizing module base for carrying the magnetic signal wheel, a magnetizing head mechanism located directly above the support assembly, and a tensioning assembly for tensioning and fixing the magnetic signal wheel;

[0009] The support assembly includes a shaft seat mounted on the magnetizing module seat, a main shaft fixed on the shaft seat, a support cylinder sleeved on the outside of the main shaft, and a support plate fixed to an end of the support cylinder away from the shaft seat and sleeved on the outside of the main shaft;

[0010] The tensioning assembly includes a tensioning member that is slidably mounted on the main shaft and tensions and positions the magnetic signal wheel through its own deformation, a power source located directly below the shaft seat, and a transmission part for connecting the tensioning member and the power source. The tensioning member is higher than the upper surface of the support disk and lower than the upper end surface of the main shaft.

[0011] By adopting the above technical solution, during operation, the magnetic signal wheel is placed on the support disk, and then the power source is turned on, so that the transmission part drives the tensioning member to move along the main axis. During the movement, the tensioning member is deformed and the magnetic signal wheel is tensioned and fixed. Compared with the traditional magnetizer, the magnetizing device in this application greatly improves the positioning effect of the magnetic signal wheel and reduces the magnetization deviation.

[0012] Preferably, the outer wall of the spindle is processed with a plurality of circumferentially equidistantly distributed clearance cutting grooves, the clearance cutting grooves being opened along the axial direction of the spindle from the end of the spindle away from the shaft seat, and a block is formed between adjacent clearance cutting grooves, and the outer side wall of the block away from the spindle axis and the end of the shaft seat is processed with a first guide cone surface that gradually tilts from bottom to top and from outside to inside;

[0013] The tensioning member includes a solid counterweight seat and a deformation part integrally formed with the counterweight seat. The deformation part is a cylindrical tube. The cylindrical tube is provided with a plurality of dividing grooves extending axially along the cylindrical tube and equidistantly distributed circumferentially at one end away from the counterweight seat. Tensioning plates are formed between adjacent dividing grooves. The position corresponding to the first guide cone surface on each tensioning plate is processed with a second guide cone surface that cooperates with the first guide cone surface to enable the tensioning plate to deform during the sliding process. The counterweight seat is connected to the transmission part.

[0014] By adopting the above technical solution, the power source can drive the tensioning member to slide along the main shaft. During the movement, the tensioning plate is deformed under the influence of the first guide cone surface and the second guide cone surface, that is, the tensioning plate gradually opens outward, thereby clamping the inner wall of the center hole of the magnetic signal wheel, thereby fixing the magnetic signal wheel.

[0015] Preferably, each of the tensioning plates is provided with a clearance notch at a position corresponding to the clearance cutting groove.

[0016] By adopting the above technical solution, it is mainly used to reduce the resistance that needs to be overcome when the tensioning plate is deformed.

[0017] Preferably, a circular hole communicating with the separation groove is processed at a position between adjacent tensioning plates near one end of the counterweight seat.

[0018] By adopting the above technical solution, on the one hand, stress concentration at the connection between the tensioning plate and the counterweight seat can be avoided, and on the other hand, the resistance that needs to be overcome when the tensioning plate is deformed can be reduced.

[0019] Preferably, the transmission part includes a pull plate located directly below the shaft seat, a guide rod slidably inserted into the shaft seat and having its two ends fixed to the counterweight seat and the pull plate, and a tension spring sleeved on the guide rod and having its two ends abutting against the pull plate and the shaft seat.

[0020] The power source is a compact cylinder, which is installed on the magnetizing module seat just below the pull plate.

[0021] By adopting the above technical solution, in the initial state, the piston rod of the compact cylinder is extended and retracted and applies an upward thrust to the pull plate, so that the tensioning spring is compressed. At this time, the second guide cone surface is completely in contact with the first guide cone surface; when the magnetic signal wheel is in place, the compact cylinder is started to cause the piston rod to contract and gradually separate from the pull plate. At this time, the tensioning member moves downward along the main axis under the action of its own gravity and the restoring force of the tensioning spring. During the movement, the tensioning plate is deformed by the influence of the first guide cone surface and the second guide cone surface, that is, the tensioning plate gradually opens outward.

[0022] Preferably, a screw sleeve coaxially arranged with the main shaft is slidably passed through the center of the pulling plate, and one end of the screw sleeve is fixedly connected to the lower surface of the shaft seat.

[0023] By adopting the above technical solution, the threaded sleeve guides the pull plate during the movement of the pull plate, thereby improving the stability of the tensioning member during operation.

[0024] Preferably, a zero point limit pin corresponding to the special-shaped hole and positioning pins located on both sides of the zero point limit pin and corresponding to the detection holes are provided on the side of the support plate away from the support cylinder.

[0025] By adopting the above technical solution, when placing the magnetic signal wheel, the center hole of the magnetic signal wheel is aligned with the main shaft, the special-shaped hole is aligned with the zero point limit pin, and the detection hole is aligned with the positioning pin, and then it can be directly put on the main shaft; the setting of the zero point limit pin and the positioning pin is mainly used to assist in positioning the magnetic signal wheel.

[0026] Preferably, a photoelectric sensor having the same height as the support plate is installed on the magnetization module seat located on one side of the support assembly.

[0027] By adopting the above technical solution, it is mainly used to detect whether a magnetic signal wheel is placed on the support disk.

[0028] Preferably, it further includes a gantry and a driving source installed on the gantry to drive the magnetizing head mechanism to move up and down.

[0029] By adopting the above technical solution and setting the driving source, the magnetizing head can be driven to move up and down to facilitate magnetizing operation.

[0030] Preferably, the driving source includes a guide cylinder installed on the crossbeam of the gantry and arranged vertically with the piston rod facing downward, and a hanging plate fixed to the piston rod of the guide cylinder and arranged horizontally; the magnetizing head mechanism includes a tooling plate fixedly connected to the hanging plate, a magnetizing cylinder fixed on the side of the tooling plate away from the hanging plate, and an annular magnetizing head embedded in the magnetizing cylinder.

[0031] By adopting the above technical solution, during operation, the magnetizing head mechanism is driven downward by the guide cylinder until the annular magnetizing head is sleeved on the outside of the magnetic signal wheel for magnetization.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] Compared with traditional magnetizers, the magnetizing device in this application greatly improves the positioning effect of the magnetic signal wheel and reduces the magnetization deviation; specifically: during operation, the magnetic signal wheel is placed on the support disk, and then the power source is turned on, so that the transmission part drives the tensioning member to move along the main axis. During the movement, the tensioning member is deformed and the magnetic signal wheel is tensioned and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural diagram of the background technology of this application;

[0035] Figure 2 Schematic diagram of the overall structure of the magnetizing device according to an embodiment of the present application;

[0036] Figure 3 It is a schematic diagram of the overall structure of the magnetizing table mechanism;

[0037] Figure 4 It is a schematic diagram reflecting the specific structure of the module seat side panel;

[0038] Figure 5 It is a schematic diagram reflecting the specific structure of the second top plate;

[0039] Figure 6 is a cross-sectional view showing the connection relationship between the positioning portion, the first top plate and the module seat side plate;

[0040] Figure 7 It is a schematic diagram reflecting the overall structure of the positioning part;

[0041] Figure 8 It is a structural diagram showing the connection relationship between the fixed part and the module seat side plate;

[0042] Figure 9 It is a cross-sectional view showing the specific structure of the magnetizing table mechanism;

[0043] Figure 10 It is a schematic diagram showing the main axis structure;

[0044] Figure 11 It is a schematic diagram showing the structure of the magnetic signal wheel;

[0045] Figure 12 It is a structural diagram showing the positional relationship between the zero point limit pin and the positioning pin on the support plate;

[0046] Figure 13 It is a schematic diagram reflecting the specific structure of the tensioner;

[0047] Figure 14 It is a three-dimensional diagram that reflects the specific structure of the tensioning component;

[0048] Figure 15 It is a structural diagram that reflects the specific structure of the magnetizing head mechanism and the coordination relationship between the magnetizing head mechanism and the magnetizing platform mechanism.

[0049] Explanation of reference numerals: 1. Gantry; 2. Magnetizing platform mechanism; 21. Magnetizing module seat; 211. Module seat bottom plate; 212. Module seat side plate; 2121. Support surface; 2122. Side rib; 2123. Step through hole; 2124. U-shaped groove; 2125. Strip mounting groove; 213. Module seat top plate; 214. Second top plate; 2141. Straight cut groove; 2142. Give way groove; 215. Press plate; 216. Handle; 217. Slide plate; 218. Notch groove; 219. Square plate; 2 2. Support assembly; 221. Deep groove ball bearing; 222. Shaft seat; 223. Spindle; 2231. Cutting groove; 2232. Block; 2233. First guide cone; 224. Support cylinder; 2241. Support plate; 225. Spacer cylinder; 226. Zero point limit pin; 229. Positioning pin; 23. Tensioning assembly; 231. Tensioning piece; 2311. Counterweight seat; 2312. Separation groove; 2313. Tensioning plate; 2314. Round hole; 2315. Cutting groove; 2316. First Second guide cone; 232, pull plate; 233, guide rod; 234, tension spring; 235, compact cylinder; 236, screw sleeve; 24, photoelectric sensor; 25, support seat; 26, L-shaped plate; 27, first proximity sensor; 28, center axis; 3, magnetizing head mechanism; 31, tooling plate; 311, mounting block; 34, magnetizing cylinder; 37, height rod; 371, height head; 4, driving source; 41, guide cylinder; 42, hanging plate; 6, magnetic signal wheel; 61, wheel body; 62, center Center hole; 63. Detection hole; 64. Special-shaped hole; 7. Positioning part; 71. Bushing; 711. Flanging; 72. Plunger seat; 721. Guide sleeve; 722. Sleeve; 723. Flange; 724. Flange; 725. Stepped through hole; 726. Limiting groove; 73. Plunger rod assembly; 731. Insert rod; 732. Connecting rod; 733. Grip; 734. Limiting rod; 74. Inductive sensor; 8. Fixing part; 81. Pin; 82. Ring; 83. Threaded rod; 84. Flange nut. DETAILED DESCRIPTION

[0050] The following is combined with Figure 2-15 This application is described in further detail.

[0051] The embodiment of the present application discloses a magnetizing device for magnetizing a magnetic signal wheel. Figure 2, The magnetizing device includes a gantry 1, a magnetizing table mechanism 2 arranged below the gantry 1, a magnetizing head mechanism 3 located directly above the magnetizing table mechanism 2, and a driving source 4 installed on the gantry 1 and connected to the magnetizing head mechanism 3; the gantry 1 is a gantry, and its specific structure can be designed according to actual needs; the main function of the magnetizing table mechanism 2 is to provide a placement for the magnet signal wheel 6 to be magnetized and to perform preliminary positioning on the magnet signal wheel 6; the main function of the driving source 4 is to drive the magnetizing head mechanism 3 to lift and lower, so as to cooperate with the magnetizing table mechanism 2 to perform magnetizing operations on the magnet signal wheel 6 placed on the magnetizing table mechanism 2.

[0052] Refer to Figure 3 , The magnetizing table mechanism 2 includes a magnetizing module base 21, a support component 22 and a tensioning component 23 arranged on the magnetizing module base 21. Among them, the main function of the support component 22 is to carry and support the magnet signal wheel 6; the main function of the tensioning component 23 is to tension and position the magnet signal wheel 6.

[0053] The magnetizing module base 21 includes a horizontally arranged module base bottom plate 211, two module base side plates 212 fixedly connected to one side of the module base bottom plate 211 and parallel to each other, and a module base top plate arranged opposite to the module base bottom plate 211. The module base top plate is detachably installed on the two module base side plates 212.

[0054] Refer to Figure 3 and Figure 4 , More specifically, the module base side plate 212 has a horizontally placed "day" - shaped structure. The side of the module base side plate 212 away from the module base bottom plate 211 is a support surface 2121. On the support surfaces 2121 of the two module base side plates 212 and on the outer side, there are processing edges 2122. The length of the edge 2122 is the same as that of the support surface 2121. The module base top plate is installed on the support surfaces 2121 of the two module base side plates 212 and is located between the two edges 2122. The module base top plate includes a first top plate 213 fixed on the support surfaces 2121 of the two module base side plates 212 and a second top plate 214 placed movably on the support surfaces 2121 of the two module base side plates 212. Both the first top plate 213 and the second top plate 214 are rectangular, and the size of the first top plate 213 is smaller than that of the second top plate 214. In this embodiment, the first top plate 213 can be fixed to the support surface 2121 by internal hexagonal socket head screws.

[0055] On the upper surface of the first top plate 213 and at both ends, there are respectively fixedly connected pressure plates 215 extending along the length direction of the support surface 2121. One end of the pressure plate 215 extends out of the first top plate 213, and the extended part forms a clamping cavity with the support surface 2121.

[0056] Refer to Figure 4 and Figure 5A handle 216 is installed on the upper surface of the second top plate 214 at one end, and a straight groove 2141 is processed at the position where the lower surface of the second top plate 214 and the two module seat side plates 212 overlap. A slide plate 217 with the same length and flush surface as the second top plate 214 is fixed in the straight groove 2141. Both ends of the slide plate 217 and the end of the support surface 2121 away from the first top plate 213 are processed with slopes to facilitate the installation of the second top plate 214.

[0057] Reference Figure 3 and Figure 4 During installation, the second top plate 214 is overlapped on the two supporting surfaces 2121 and pushed along the rib 2122. During the pushing process, the rib 2122 can limit and guide the second top plate 214 until one end of the second top plate 214 extends into the clamping cavity and abuts against the first top plate 213. At this time, the upper surface of the second top plate 214 is flush with the upper surface of the first top plate 213.

[0058] Reference Figure 3 and Figure 6 Positioning portions 7 are provided between the second top plate 214 and the two module base side plates 212. The ribs 2122, the pressure plate 215, and the positioning portions 7 position the second top plate 214 in the X, Y, and Z directions, respectively, thereby ensuring the installation accuracy of the second top plate 214. The positioning portions 7 include a bushing 71 embedded in the module base side plates 212, a plunger seat 72 mounted on the second top plate 214, and a plunger rod assembly 73 slidably mounted on the plunger seat 72. The plunger rod assembly 73 can extend into and engage with the bushing 71 to position the second top plate 214.

[0059] Reference Figure 4 and Figure 6 The module seat side plate 212 is provided with a step through hole 2123 on the support surface 2121 of its own U-shaped area; the bushing 71 is a cylindrical tube with a hollow interior and openings at both ends. One end of the bushing 71 is integrally formed with a flange 711 that overlaps the step surface of the step through hole 2123, and the surface of the flange 711 is flush with the surface of the module seat side plate 212.

[0060] Reference Figure 5 and Figure 6The second top plate 214 and the slide plate 217 are both machined with notch grooves 218 at positions corresponding to the step through hole 2123. The notch groove 218 is opened horizontally inward from one side of the second top plate 214 along the width direction of the second top plate 214. When the second top plate 214 is in place, the notch groove 218 is connected to the step through hole 2123. The plunger seat 72 includes a cylindrical guide sleeve 721 and a sleeve 722 threadedly connected to the outer wall of the guide sleeve 721. The length of the guide sleeve 721 is greater than that of the sleeve 722. A ridge 723 for the end of the sleeve 722 to abut against is radially extended on the outer wall of the guide sleeve 721 near one end. A flange 724 is integrally formed at the end of the sleeve 722 away from the ridge 723. The flange 724 is fixed to the upper surface of the second top plate 214 by screws, so that the sleeve 722 is embedded in the notch groove 218. At this time, the end of the guide sleeve 721 located in the notch groove 218 is higher than the support surface 2121.

[0061] The interior of the guide sleeve 721 is penetrated by a stepped through hole 725 extending along its own axial direction, and the large hole of the stepped through hole 725 is arranged near the ridge 723; the plunger rod assembly 73 includes an insertion rod 731 slidably set in the large hole of the stepped through hole 725, a connecting rod 732 connected to one end of the insertion rod 731 and slidingly extending out of the guide sleeve 721 from the small hole of the stepped through hole 725, and a gripping portion 733 integrally formed with the connecting rod 732. The gripping portion 733 is spherical, and the diameter of the gripping portion 733 is larger than the diameter of the guide sleeve 721. When the gripping portion 733 abuts against the end of the guide sleeve 721 away from the ridge 723, the free end of the insertion rod 731 extends out of the guide sleeve 721.

[0062] Reference Figure 6 and Figure 7 When the latch is in the closed position, the latch will be turned by the latch being in the closed position, and the latch will be in the closed position when the latch is in the open position.

[0063] When the second top plate 214 is in place, rotate the gripping portion 733 so that the limiting rod 734 is aligned with the limiting slot 726 and slides downward along the limiting slot 726. When the gripping portion 733 abuts against the end of the guide sleeve 721 away from the protruding edge 723, the insertion rod 731 extends into the bushing 71 to further position the second top plate 214.

[0064] Reference Figure 6An inductive sensor 74 is installed directly below the bushing 71, which is mainly used to detect whether the insertion rod 731 is aligned with the bushing 71, thereby ensuring the smooth installation of the second top plate 214.

[0065] Reference Figure 4 and Figure 8 In order to improve the stability of the second top plate 214 after installation, a fixing portion 8 is further provided on the two module seat side plates 212. The fixing portion 8 is located on one side of the positioning portion 7 and is mainly used to firmly fix the second top plate 214. The positioning portion 7 includes a pin 81, a collar 82 sleeved on the pin 81, a threaded rod 83 fixed to the outer wall of the collar 82, and a flange nut 84 threadedly connected to the threaded rod 83; a U-shaped groove 2124 extending from the support surface 2121 to the module seat bottom plate 211 is machined on the module seat side plate 212. Both sides of the U-shaped groove 2124 pass through the width direction of the module seat side plate 212. The collar 82 is located in the U-shaped groove 2124, and the two axial sides of the collar 82 respectively abut against the inner wall of the U-shaped groove 2124. 212 is also processed inward with a strip mounting groove 2125 on the side close to the handle 216. The strip mounting groove 2125 and the U-shaped groove 2124 are arranged in a cross shape. The pin shaft 81 is embedded in the strip mounting groove 2125, so that the threaded rod 83 can rotate freely in the U-shaped groove 2124. A square plate 219 is fixed at the position of the module seat side plate 212 corresponding to the strip mounting groove 2125 to prevent the pin shaft 81 from falling out of the strip mounting groove 2125; a clearance groove 2142 is opened at the position of the second top plate 214 corresponding to the U-shaped groove 2124.

[0066] During operation, the threaded rod 83 is rotated to a vertical state, and then the flange nut 84 is threadedly connected to the threaded rod 83 , thereby clamping and fixing the second top plate 214 on the supporting surface 2121 of the module seat side plate 212 .

[0067] Reference Figure 9 and Figure 10 The above-mentioned support assembly 22 includes a shaft seat 222 rotatably arranged on the second top plate 214 through a deep groove ball bearing 221. The second top plate 214 is provided with a fixing hole for the shaft seat 222 to pass through at a position corresponding to the shaft seat 222. A main shaft 223 coaxial with itself and vertically arranged is fixedly connected to the shaft seat 222. Four circumferentially equidistantly distributed clearance cutting grooves 2231 are processed on the outer wall of the main shaft 223. The clearance cutting grooves 2231 are opened along the axial direction of the main shaft 223 from one end of the main shaft 223 away from the shaft seat 222. A block 2232 is formed between adjacent clearance cutting grooves 2231. The outer side wall of the block 2232, which is away from the axis of the main shaft 223 and away from the end of the shaft seat 222, is processed with a first guide cone surface 2233 which gradually inclines from bottom to top and from outside to inside.

[0068] The main shaft 223 is coaxially sleeved with a support tube 224 fixedly connected to the shaft seat 222. The support tube 224 is coaxially sleeved with a backing tube 225 fixedly connected to the shaft seat 222. The top of the backing tube 225 is lower than the top of the support tube 224. A support disk 2241 is fixedly connected to the end of the support tube 224 away from the shaft seat 222 and is sleeved and arranged horizontally on the outside of the main shaft 223. The upper surface of the support disk 2241 is lower than the main shaft 223, and the magnetic signal wheel 6 can be placed on the support disk 2241.

[0069] Reference Figure 11 It should be noted that the magnetic signal wheel 6 includes a wheel body 61. The circumferential surface of the wheel body 61 is a magnetized surface with multiple spaced-apart strong and weak magnetic segments. A central hole 62 is defined at the center of the wheel body 61 for the spindle 223 to pass through. A plurality of detection holes 63 are defined around the wheel body 61, circumferentially and evenly spaced. A shaped hole 64 is defined between two adjacent detection holes 63.

[0070] Reference Figure 11 and Figure 12 The upper surface of the support plate 2241 is provided with a zero point limit pin 226 and positioning pins 229 located on both sides of the zero point limit pin 226. The zero point limit pin 226 corresponds to the special-shaped hole 64, and the two positioning pins 229 correspond one-to-one to the positions of the detection holes 63 on both sides of the special-shaped hole 64 on the magnetic signal wheel 6.

[0071] Reference Figure 9 、 Figure 11 and Figure 12 When placing, align the center hole 62 of the magnetic signal wheel 6 with the main shaft 223, the special-shaped hole 64 with the zero point limit pin 226, and the detection hole 63 with the positioning pin 229, and then directly put it on the main shaft 223.

[0072] Reference Figure 9 A photoelectric sensor 24 is provided on the second top plate 214 at a position on one side of the support assembly 22. The photoelectric sensor 24 is installed on the upper surface of the second top plate 214 through the support seat 25, and is mainly used to detect whether a magnetic signal wheel 6 is placed on the support disk 2241.

[0073] Reference Figure 9The above-mentioned tensioning assembly 23 includes a tensioning member 231 slidably mounted on the main shaft 223 and located in the support cylinder 224, a power source located directly below the shaft seat, and a transmission part for connecting the tensioning member 231 and the power source; the transmission part includes a pull plate 232 located directly below the shaft seat 222, a guide rod 233 slidably mounted on the shaft seat 222 and fixed at both ends to the tensioning member 231 and the pull plate 232, and a tensioning spring 234 mounted on the guide rod 233 and abutting the pull plate 232 and the shaft seat 222 at both ends; the power source is a compact cylinder 235, which is mounted on the module seat bottom plate 211 and located directly below the pull plate 232. When the magnetic signal wheel 6 is in place, the tensioning member 231 passes through the center hole 62 of the magnetic signal wheel 6.

[0074] Reference Figure 9 and Figure 13 The tensioning member 231 includes a solid counterweight seat 2311 and a deformation part integrally formed with the counterweight seat 2311. There is a movable space between the counterweight seat 2311 and the shaft seat 222, and one end of the guide rod 233 is fixed to the side of the counterweight seat 2311 away from the deformation part; the deformation part is a cylindrical tube, which has a certain elasticity and rigidity. The cylindrical tube is provided with a plurality of dividing grooves 2312 extending axially along the cylindrical tube and equidistantly distributed circumferentially at one end away from the counterweight seat 2311. Tensioning plates 2313 are formed between adjacent dividing grooves 2312, and circular holes 2314 connected to the dividing grooves 2312 are processed between adjacent tensioning plates 2313 near one end of the counterweight seat 2311. On the one hand, the circular hole 2314 can avoid stress concentration at the connection between the tensioning plate 2313 and the counterweight seat 2311, and on the other hand, it can reduce the resistance that needs to be overcome when the tensioning plate 2313 is deformed.

[0075] Reference Figure 10 and Figure 13 A clearance notch 2315 is provided on each tensioning plate 2313 at a position corresponding to the clearance cutting groove 2231 of the main shaft 223, and a second guide cone surface 2316 for cooperating with the first guide cone surface 2233 is processed on each tensioning plate 2313 at a position corresponding to the first guide cone surface 2233 of the main shaft 223.

[0076] Reference Figure 9 、 Figure 10 and Figure 13In the initial state, the piston rod of the compact cylinder 235 is extended and retracted and applies an upward thrust to the pull plate 232, so that the tensioning spring 234 is compressed. At this time, the second guide cone 2316 is completely in contact with the first guide cone 2233; when the magnetic signal wheel 6 is in place, the compact cylinder 235 is started, causing the piston rod to contract and gradually separate from the pull plate 232. At this time, the tensioning member 231 moves downward along the main shaft 223 under the action of its own gravity and the restoring force of the tensioning spring 234. During the movement, the tensioning plate 2313 is deformed by the influence of the first guide cone 2233 and the second guide cone 2316, that is, the tensioning plate 2313 gradually opens outward, thereby clamping the inner wall of the center hole 62 of the magnetic signal wheel 6, greatly improving the positioning effect of the magnetic signal wheel 6 and reducing the magnetization deviation.

[0077] Reference Figure 10 and Figure 14 In order to ensure the stability of the tensioning member 231 during operation, a screw sleeve 236 coaxial with the main shaft 223 is slidably passed through the center of the pull plate 232. One end of the screw sleeve 236 is fixedly connected to the lower surface of the shaft seat 222. During the movement of the pull plate 232, the screw sleeve 236 guides the pull plate 232.

[0078] Reference Figure 15 The driving source 4 includes a guide cylinder 41 installed on the crossbeam of the gantry 1, the piston rod of the guide cylinder 41 is arranged vertically downward, and a horizontally arranged hanging plate 42 is fixed to the free end of the piston rod of the guide cylinder 41, and the hanging plate 42 is rectangular; the magnetizing head mechanism 3 includes a rectangular tooling plate 31 detachably connected to the hanging plate 42, a magnetizing cylinder 34 fixed to the side of the tooling plate 31 away from the hanging plate 42, and an annular magnetizing head embedded in the magnetizing cylinder 34 and connected to the magnetizing assembly (not shown); two mounting blocks 311 are symmetrically fixed to the side of the tooling plate 31 away from the adapter plate 33, and the hanging plate 42 is connected to the two mounting blocks 311 by bolts.

[0079] During operation, the magnetizing head mechanism 3 is driven downward by the guide cylinder 41 until the annular magnetizing head is covered on the outside of the magnetic signal wheel 6 for magnetization.

[0080] A height rod 37 extending axially along the positioning axis 32 is installed on the lower surface of the tooling plate 31 near a corner. An adjustable height head 371 is threadedly connected to the height rod 37. A first proximity sensor 27 fixed to the upper surface of the second top plate 214 through an L-shaped plate 26 is provided directly below the height rod 37. The detection head of the first proximity sensor 27 is facing the height head 371. When the magnetizing head mechanism 3 is in place, the height head 371 contacts the first proximity sensor 27 to achieve signal communication, which is mainly used to detect whether the annular magnetizing head has dropped into place, thereby ensuring the smooth progress of the magnetizing operation.

[0081] The implementation principle of the embodiment of this application is:

[0082] Step 1: Place the magnetic signal wheel 6 to be magnetized on the support plate 2241;

[0083] Step 2: The photoelectric sensor 24 detects whether the magnetic signal wheel 6 to be magnetized is in place. If so, the guide cylinder 41 is activated to drive the magnetizing head mechanism 3 to descend.

[0084] Step 3: During the process of driving the magnetizing head mechanism 3 to descend, the first proximity sensor 27 is used to detect whether the magnetizing head mechanism 3 is in place;

[0085] Step 4: After the magnetizing head mechanism 3 is in place and the parallelism of the magnetic signal wheel 6 meets the requirements, the compact cylinder 235 is activated, causing the tensioning plate 2313 to gradually open outward under the action of gravity and the guidance of the first guide cone 2233 and the second guide cone 2316, thereby clamping and fixing the magnetic signal wheel 6;

[0086] Step 5: The annular magnetizing head magnetizes the magnetic signal wheel 6;

[0087] Step 6: After the magnetization is completed, the compact cylinder 235 and the guide cylinder 41 are reset in sequence, and the magnetic signal wheel 6 is removed, and the cycle repeats.

[0088] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A magnetizing device for magnetizing a magnetic signal wheel, characterized in that: It comprises a magnetizing module seat (21), a support assembly (22) mounted on the magnetizing module seat (21) for carrying a magnetic signal wheel (6), a magnetizing head mechanism (3) located directly above the support assembly (22), and a tensioning assembly (23) for tensioning and fixing the magnetic signal wheel (6); The support assembly (22) includes a shaft seat (222) mounted on the magnetizing module seat (21), a main shaft (223) fixed on the shaft seat (222), a support cylinder (224) sleeved on the outside of the main shaft (223), and a support disk (2241) fixed to one end of the support cylinder (224) away from the shaft seat (222) and sleeved on the outside of the main shaft (223); The tensioning assembly (23) includes a tensioning member (231) which is slidably mounted on the main shaft (223) and tensions and positions the magnetic signal wheel (6) by deforming itself, a power source located directly below the shaft seat (222), and a transmission portion for connecting the tensioning member (231) and the power source, wherein the tensioning member (231) is higher than the upper surface of the support disk (2241) and lower than the upper end surface of the main shaft (223); The outer wall of the main shaft (223) is processed with a plurality of circumferentially equidistantly distributed clearance cutting grooves (2231), the clearance cutting grooves (2231) are opened along the axial direction of the main shaft (223) from one end of the main shaft (223) away from the shaft seat (222), and a block (2232) is formed between adjacent clearance cutting grooves (2231). The outer wall of the block (2232) is processed on the side away from the axis of the main shaft (223) and away from the shaft seat (222) and is gradually inclined from bottom to top and from outside to inside. The tensioning member (231) comprises a solid counterweight seat (2311) and a deformation portion integrally formed with the counterweight seat (2311); the deformation portion is a cylindrical tube; a plurality of separation grooves (2312) extending axially along the cylindrical tube and equidistantly distributed circumferentially are formed on the end of the cylindrical tube away from the counterweight seat (2311); a tensioning plate (2313) is formed between adjacent separation grooves (2312); a second guide conical surface (2316) is machined at a position corresponding to the first guide conical surface (2233) on each tensioning plate (2313) so as to cooperate with the first guide conical surface (2233) to enable the tensioning plate (2313) to deform during the sliding process; and the counterweight seat (2311) is connected to the transmission portion; A clearance notch (2315) is provided on each of the tensioning plates (2313) at a position corresponding to the clearance cutting groove (2231); A circular hole (2314) communicating with the separation groove (2312) is processed at a position between adjacent tensioning plates (2313) near one end of the counterweight seat (2311).

2. A magnetizing device for magnetizing a magnetic signal wheel according to claim 1, characterized in that: The transmission part includes a pull plate (232) located directly below the shaft seat (222), a guide rod (233) slidingly inserted into the shaft seat (222) and having its two ends fixedly connected to the counterweight seat (2311) and the pull plate (232), and a tensioning spring (234) sleeved on the guide rod (233) and having its two ends abutting against the pull plate (232) and the shaft seat (222). The power source is a compact cylinder (235), which is installed on the magnetizing module seat (21) at a position directly below the pull plate (232).

3. The magnetizing device for magnetizing a magnetic signal wheel according to claim 2, characterized in that: A screw sleeve (236) coaxially arranged with the main shaft (223) is slidably provided at the center of the pulling plate (232), and one end of the screw sleeve (236) is fixedly connected to the lower surface of the shaft seat (222).

4. The magnetizing device for magnetizing a magnetic signal wheel according to claim 1, characterized in that: A zero point limit pin (226) corresponding to the special-shaped hole (64) and positioning pins (229) located on both sides of the zero point limit pin (226) and corresponding to the detection hole (63) are provided on the side of the support plate (2241) away from the support cylinder (224).

5. The magnetizing device for magnetizing a magnetic signal wheel according to claim 1, characterized in that: A photoelectric sensor (24) having the same height as the support plate (2241) is installed on the magnetizing module seat (21) located on one side of the support assembly (22).

6. The magnetizing device for magnetizing a magnetic signal wheel according to claim 1, characterized in that: It also includes a gantry (1) and a driving source (4) installed on the gantry (1) to drive the magnetizing head mechanism (3) to move up and down.

7. The magnetizing device for magnetizing a magnetic signal wheel according to claim 6, characterized in that: The driving source (4) comprises a guide cylinder (41) mounted on a crossbeam of a gantry (1) and arranged vertically with a piston rod facing downward, and a hanging plate (42) fixed to the piston rod of the guide cylinder (41) and arranged horizontally; the magnetizing head mechanism (3) comprises a tooling plate (31) fixedly connected to the hanging plate (42), a magnetizing cylinder (34) fixed on a side of the tooling plate (31) facing away from the hanging plate (42), and an annular magnetizing head embedded in the magnetizing cylinder (34).

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