CN214476745U - Magnetizing device for magnetizing magnetic signal wheel - Google Patents

Abstract

The utility model belongs to the technical field of the signal wheel processing of magnetizing and specifically relates to a magnetism signal wheel magnetizes and uses magnetization device is related to, including the support frame, set up in the support frame below with the platform mechanism that magnetizes that supplies magnetism signal wheel to place, be located and magnetize the platform mechanism directly over with the magnetic head mechanism that magnetizes to the magnetism signal wheel, install the driving source in order to drive the magnetic head mechanism lift on the support frame to and set up and magnetize the zero adjustment mechanism that the platform mechanism carries out accurate positioning in order to treat the magnetism signal wheel that magnetizes. The method has the effects of improving the magnetizing precision and ensuring the consistency of the magnetizing angle of each magnetic signal wheel.

Description

Magnetizing device for magnetizing magnetic signal wheel

Technical Field

The application relates to the field of signal wheel magnetizing processing, in particular to a magnetizing device for magnetizing a magnetic signal wheel.

Background

The signal wheel is an important part of the crankshaft of the automobile, and the signal wheel is matched with a crankshaft sensor, and the crankshaft sensor determines the position of the crankshaft, namely the current position of an engine, by reading the number of teeth so as to strike sparks. With the rapid development of the automobile industry, the common signal wheel is gradually replaced by the magnetic signal wheel due to the complex processing.

The magnetic signal wheel is low in production and manufacturing complexity, and can be put into use only by magnetizing after being processed. Specifically, please refer to chinese patent with publication number CN208672660U, which discloses a magnetizing rubber tachometer signal wheel, comprising a wheel body, a magnetizing rubber ring and a hall sensor, wherein the wheel body has a main body portion and a mounting portion, and the mounting portion is circumferentially arranged around the edge of the main body portion; the magnetizing rubber ring is sleeved on the mounting part and comprises a strong magnetic section and a weak magnetic section, the strong magnetic section and the weak magnetic section are connected to form a magnetic section assembly, and the magnetic section assembly forms the magnetizing rubber ring around the mounting part; the induction head of the Hall sensor is opposite to and close to the magnetizing rubber ring.

According to the related technology, a magnetizing machine is mainly used for magnetizing the magnetic signal wheel at present, but the inventor finds that magnetizing positions of strong magnetic sections and weak magnetic sections of part of magnetic signal wheels in the same batch are deviated according to years of processing experience, and magnetizing accuracy is low.

In view of the above-mentioned related art, the inventor believes that the conventional magnetizing apparatus has a drawback of low magnetizing precision.

SUMMERY OF THE UTILITY MODEL

In order to improve the magnetizing precision and ensure the consistency of the magnetizing angle of each magnetic signal wheel, the application provides a magnetizing device for magnetizing the magnetic signal wheels.

The application provides a magnetism signal wheel magnetizes and uses magnetization device adopts following technical scheme:

the magnetizing device comprises a support frame, a magnetizing table mechanism arranged below the support frame and used for placing a magnetic signal wheel, a magnetizing head mechanism positioned right above the magnetizing table mechanism and used for magnetizing the magnetic signal wheel, a driving source arranged on the support frame and used for driving the magnetizing head mechanism to lift, and a zero adjusting mechanism arranged on the magnetizing table mechanism and used for accurately positioning the magnetic signal wheel to be magnetized.

By adopting the technical scheme, during operation, the magnetic signal wheel to be magnetized is placed on the magnetizing table mechanism, the driving source is started, the magnetizing head mechanism moves towards the direction of the magnetizing table mechanism, and after the magnetizing head mechanism is in place, the magnetic signal wheel to be magnetized is accurately positioned through the zero adjusting mechanism, so that the gap of zero positioning is eliminated, the consistency of the magnetizing angle of each magnetic signal wheel is ensured, and the magnetizing precision is improved.

Preferably, the magnetizing table mechanism at least comprises a horizontally arranged magnetizing module seat and a supporting component arranged on the magnetizing module seat;

the supporting component comprises a shaft seat vertically penetrating through the magnetizing module seat and rotatably connected with the magnetizing module seat, a main shaft fixedly connected to the shaft seat and coaxially arranged with the shaft seat, a supporting barrel coaxially sleeved outside the main shaft and fixedly connected with the shaft seat, and a supporting plate coaxially sleeved outside the main shaft and fixedly connected to one end of the supporting barrel far away from the shaft seat, wherein a zero limit pin penetrating through a special-shaped hole of the magnetic signal wheel to position the magnetic signal wheel is arranged on the supporting plate.

By adopting the technical scheme, when the magnetic signal wheel is placed, only the central hole of the magnetic signal wheel needs to be aligned with the main shaft, the special-shaped hole needs to be aligned with the zero limit pin, and then the special-shaped hole is directly sleeved on the main shaft, so that the operation is very convenient; the arrangement of the zero limit pin is mainly used for positioning the magnetic signal wheel to be magnetized, so that the possibility of relative rotation of the magnetic signal wheel is reduced, and the magnetizing precision is ensured.

Preferably, the zero limit pin is arranged on the supporting disk in a sliding mode in a penetrating mode, a fixed block is fixedly connected to one side, facing the shaft seat, of the supporting disk, a containing groove is formed in the position, corresponding to the zero limit pin, of the fixed block, and a compression spring is arranged in the containing groove, one end of the compression spring is connected with the zero limit pin, and the other end of the compression spring is connected with the inner bottom wall of the containing groove.

By adopting the technical scheme, when the compression spring is in a natural state, part of the rod body of the zero-point limiting pin extends out of the surface of the supporting disk; when external force is applied, the zero limit pin is retracted into the accommodating groove; when the external force is removed, the zero limit pin is reset.

Preferably, the driving source includes a guide cylinder installed on a cross beam of the support frame and a piston rod arranged vertically downward, and a suspension plate fixedly connected to a free end of the piston rod of the guide cylinder and horizontally disposed, and the head charging mechanism is installed on the suspension plate.

Through adopting above-mentioned technical scheme, direction cylinder accessible hanger plate drives and fills magnetic head mechanism and go up and down to reset or the operation of magnetizing.

Preferably, the magnetic head charging mechanism comprises a tooling plate detachably connected with the hanger plate, a positioning shaft fixedly connected to the center of one side of the tooling plate, which deviates from the hanger plate, and arranged coaxially with the main shaft, an adapter plate sleeved on the positioning shaft and capable of being adjusted in a rotating manner relative to the tooling plate, a magnetizing cylinder fixed on one side of the adapter plate, which deviates from the tooling plate, and an annular magnetizing head embedded in the magnetizing cylinder and used for magnetizing.

Through adopting above-mentioned technical scheme, the design that the keysets can rotate the adjustment, and the staff of being convenient for debugs the angle of magnetizing of ring magnetization head in earlier stage, avoids influencing the precision of magnetizing as far as possible because of the error that produces in production or the assembling process.

Preferably, be equipped with a plurality of fastening bolt of connecting both between frock board and the keysets, the slide that supplies fastening bolt to pass and slide so that the keysets can rotate the adjustment relatively the frock board has all been offered to the position that corresponds every fastening bolt on the frock board, the width of slide is greater than the diameter of the body of rod of fastening bolt, is less than the diameter of fastening bolt's nut, the body of rod of fastening bolt passes slide and keysets threaded connection, fastening bolt's nut butt is in the one side that the keysets was kept away from to the frock board.

By adopting the technical scheme, the width of the slide way is larger than the diameter of the rod body of the fastening bolt, so that enough guarantee can be provided for the rotation fine adjustment of the adapter plate, and meanwhile, the shape of the slide way can be adaptively designed according to the requirement; generally, the adapter plate and the tooling plate are fixed through the fastening bolts, and the fastening bolts are only required to be unscrewed during adjustment.

Preferably, a fine adjustment assembly is arranged at a position, close to the edge, of one side, far away from the adapter plate, of the tooling plate;

the fine adjustment assembly comprises a fixed seat fixed on the tooling plate, a sliding seat arranged opposite to the fixed seat, a dial indicator which is installed on the fixed seat and a measuring head of which always abuts against the sliding seat, a guide block fixedly connected on the sliding seat and extending into the tooling plate, and a deflector rod fixedly connected at one end of the guide block, far away from the sliding seat, and extending into the adapter plate, wherein a guide groove extending along the telescopic direction of the measuring head of the dial indicator is processed at the position of the tooling plate corresponding to the guide block, the guide block slides in the guide groove, and a strip-shaped movable groove which is vertical to the guide groove and is used for the deflector rod to stir the adapter plate to rotate is arranged at the position of the adapter plate corresponding to the deflector rod;

and a fixing bolt penetrates through the sliding seat, a screw rod of the fixing bolt penetrates through the sliding seat and is in threaded connection with the tooling plate, a nut of the fixing bolt is abutted against the sliding seat, and a strip-shaped fixing groove extending along the length direction of the guide groove is processed at the position, corresponding to the fixing bolt, on the sliding seat.

By adopting the technical scheme, when debugging is carried out, the fastening bolt and the fixing bolt are loosened, the sliding seat is moved along the guide groove, and in the moving process, the deflector rod slides in the strip-shaped movable groove and stirs the adapter plate to rotate, so that the angle of the annular magnetizing head is finely adjusted; in the debugging process, a worker can ensure the debugging precision through the reading on the dial indicator; and after debugging is finished, tightening the fastening bolt and the fixing bolt.

Preferably, the magnetic head charging mechanism further comprises a detection module, the detection module comprises a detection plate horizontally arranged right below the positioning shaft and positioned in the magnetization cylinder, a special-shaped plate positioned between the tooling plate and the hanging plate and parallel to the detection plate, a guide shaft which penetrates through the positioning shaft and the tooling plate in a sliding manner, and two ends of the guide shaft are respectively fixedly connected with the detection plate and the special-shaped plate, and a reset spring connected between the positioning shaft and the detection plate, wherein a moving space is formed between the detection plate and the positioning shaft;

one side of the special-shaped plate is provided with a lifting block which is slidably arranged on the tool plate through a linear bearing, a first adjusting bolt which is in threaded connection with the lifting block is arranged on the lifting block in a penetrating mode, a vertical plate which extends along the axial direction of the positioning shaft is fixedly connected to the plate surface of one side, close to the lifting block, of the special-shaped plate, one end, far away from the special-shaped plate, of the vertical plate is fixedly connected with a horizontal plate which extends to the position right above the first adjusting bolt horizontally, and a second proximity sensor which is matched with the first adjusting bolt to detect the parallelism of the magnetic signal wheel is arranged on the horizontal plate;

a guide post extending along the axial direction of the main shaft is fixed on the magnetizing module seat, a second adjusting bolt is connected with the free end of the guide post in a threaded manner, and a guide sleeve for the guide post to slide and penetrate through to drive the lifting block to ascend is embedded and installed in the position, below the lifting block, of the tooling plate.

By adopting the technical scheme, after the magnetic head charging mechanism is in place, if the lifting block and the detection plate stop rising simultaneously and the detection head of the second proximity sensor is in contact with the detection surface of the first adjusting bolt, the parallelism of the magnetic signal wheel meets the requirement; if the lifting block stops rising and the detection plate continues rising, the detection head of the second proximity sensor is separated from the detection surface of the first adjusting bolt, the parallelism of the magnetic signal wheel is not qualified, namely, the magnetizing is stopped because one side of the wheel is tilted due to the fact that the wheel body is not laid flat or laid in place or the wheel body deforms, and accordingly the magnetizing precision and the magnetizing qualification rate are guaranteed.

Preferably, a zero position shaft extending axially along the positioning shaft is fixedly connected to a position, which is far away from one end of the tooling plate and is opposite to the zero position limit pin, of the positioning shaft, a first zero position rod and a second zero position rod which are coaxial and sequentially arranged are integrally connected to the free end of the zero position shaft, and the diameter of the first zero position rod is larger than that of the second zero position rod and smaller than the minimum diameter of a special-shaped hole in the magnetic signal wheel;

the zero adjusting mechanism comprises a zero linkage rod, a limiting seat and a force applying source and a force accumulating source, wherein one end of the zero linkage rod is fixed on the shaft seat, the other end of the zero linkage rod horizontally extends towards the direction departing from the shaft seat, the limiting seat is fixed on the magnetizing module seat and used for limiting the rotation angle of the zero linkage rod, the force applying source and the force accumulating source are fixed on the magnetizing module seat and respectively positioned on two sides of the zero linkage rod, and a yielding port for one end of the zero linkage rod to extend into is formed in the position, corresponding to the zero linkage rod, of the supporting cylinder;

the force storage source stores force when the force application source applies force, releases the force when the force application source stops applying force, and drives the main shaft to rotate through the zero-position linkage rod so as to eliminate the zero-position positioning gap.

By adopting the technical scheme, the force application source mainly has the function of applying external force to the zero-position linkage rod to enable the main shaft to keep an initial state, so that the first zero-position rod can be inserted into the special-shaped hole of the magnetic signal wheel when the magnetic head charging mechanism is in position; the main function of the force storage source is to store force when the force application source applies force and release force when the force application source stops applying force, so that the main shaft is driven to rotate by the zero-position linkage rod.

Preferably, the limiting seat comprises a main arm fixed under the zero-position linkage rod and arranged in a cross manner with the zero-position linkage rod, side arms integrally formed at two ends of the main arm and respectively located at two sides of the cushion block, and a first limiting bolt and a second limiting bolt which are respectively in threaded connection with the two side arms and can be adjusted in an opposite or opposite moving manner;

the force application source is a zero cylinder which is positioned on the same side with the second limit bolt;

the power storage source comprises a spring seat which is fixed on the magnetizing module seat and is positioned at the same side with the first limiting bolt, and a zero position spring which is arranged in the spring seat, and one end of the zero position spring extends out of the spring seat and is always abutted against the zero position linkage rod.

By adopting the technical scheme, in an initial state, a piston rod of the force application source pushes the zero-position linkage rod to abut against the first limiting bolt, and the zero-position spring is compressed; when a piston rod of the force application source contracts, the force storage source is in a force release state, namely the zero-position spring pushes the zero-position linkage rod to drive the shaft seat to rotate, the main shaft drives the magnetic signal wheel to be magnetized to rotate along with the zero-position linkage rod until the zero-position linkage rod is contacted with the second limiting bolt, and at the moment, the inner wall of the special-shaped hole of the magnetic signal wheel abuts against the outer side wall of the first zero-position rod, so that a gap for zero-position positioning is eliminated, the consistency of the magnetizing angle of each magnetic signal wheel is ensured, and the magnetizing precision is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the method, the magnetic signal wheels to be magnetized can be accurately positioned through the zero adjusting mechanism, so that the zero positioning gap is eliminated, the consistency of the magnetizing angle of each magnetic signal wheel is ensured, and the magnetizing precision is improved;

2. the zero-point limiting pin is arranged on the supporting disk and used for positioning the magnetic signal wheel to be magnetized, so that the possibility of relative rotation of the magnetic signal wheel is reduced, and the magnetizing precision is ensured;

3. the arrangement of the detection module can detect the parallelism of the magnetic signal wheel to be magnetized after the annular magnetizing head is in place, so that the magnetizing precision and the magnetizing qualification rate are ensured.

Drawings

Fig. 1 is a schematic overall structure diagram of a magnetizing apparatus according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram showing the whole mechanism of the magnetizing table;

FIG. 3 is a sectional view showing a detailed structure of a magnetic charging table mechanism;

FIG. 4 is a schematic diagram of a wheel embodying magnetic signals;

FIG. 5 is an exploded view showing a specific structure of a zero-point limiting pin on a support plate;

FIG. 6 is a schematic structural diagram showing a specific structure of a head charging mechanism and a matching relationship between the head charging mechanism and a magnetic charging table mechanism;

FIG. 7 is a schematic structural view showing a portion of the head charging mechanism covered by the magnetizing cylinder;

FIG. 8 is an exploded view of the tooling plate and adapter plate interface;

FIG. 9 is a diagram showing a detailed structure of a trimming assembly and a partial structure of a detecting module;

FIG. 10 is a schematic view showing a specific structure of a fixing base;

FIG. 11 is a schematic view showing a concrete structure of a slider;

FIG. 12 is a schematic view showing a specific structure of a null adjustment mechanism;

FIG. 13 is a schematic view showing a specific structure of an accumulation power source.

Description of reference numerals: 1. a support frame; 2. a magnetizing table mechanism; 21. a magnetizing module base; 22. a support assembly; 221. a deep groove ball bearing; 222. a shaft seat; 223. a main shaft; 224. a support cylinder; 2241. a support disc; 225. a cushion cylinder; 226. a zero limit pin; 227. a fixed block; 2271. accommodating grooves; 228. a compression spring; 229. positioning pins; 24. a photosensor; 25. a supporting seat; 26. an L-shaped plate; 27. a first proximity sensor; 3. a head charging mechanism; 31. assembling a plate; 311. mounting blocks; 312. a slideway; 313. a guide groove; 32. positioning the shaft; 33. an adapter plate; 331. a strip-shaped movable groove; 34. a magnetizing cylinder; 35. a zero axis; 351. a first zero position lever; 352. a second zero position lever; 36. fastening a bolt; 37. a height bar; 371. a height head; 39. a detection module; 391. detecting a plate; 392. a shaped plate; 393. a guide shaft; 394. a return spring; 395. a threaded standoff; 396. a lifting block; 397. a linear bearing; 398. a first adjusting bolt; 399. a vertical plate; 400. a horizontal plate; 401. a second proximity sensor; 402. a guide post; 403. a second adjusting bolt; 404. a guide sleeve; 4. a drive source; 41. a guide cylinder; 42. a hanger plate; 5. a zero adjustment mechanism; 51. a zero-position linkage rod; 52. a limiting seat; 521. a main arm; 522. a side arm; 523. a first limit bolt; 524. a second limit bolt; 53. applying a force source; 54. a storage source; 541. a spring seat; 5411. an accommodating cavity; 5412. mounting holes; 542. a zero position spring; 543. a pitch bolt member; 5431. a bolt shank; 5432. ejecting the head; 55. cushion blocks; 6. a magnetic signal wheel; 61. a wheel body; 62. a central bore; 63. a detection hole; 64. a profiled hole; 9. a fine tuning component; 91. a fixed seat; 911. a first fixing plate; 912. a second fixing plate; 913. dividing the groove; 914. an upper splint; 915. a lower splint; 916. a shaft hole; 92. a slide base; 921. a vertical plate; 922. a transverse plate; 923. a guide block; 924. a deflector rod; 925. a strip-shaped fixing groove; 926. fixing the bolt; 93. and (4) a dial indicator.

Detailed Description

The present application is described in further detail below with reference to figures 1-13.

The embodiment of the application discloses a magnetizing device for magnetizing a magnetic signal wheel. Referring to fig. 1, the magnetizing apparatus includes a support frame 1, a magnetizing table mechanism 2 disposed below the support frame 1, a magnetizing head mechanism 3 located right above the magnetizing table mechanism 2, a driving source 4 mounted on the support frame 1 and connected to the magnetizing head mechanism 3, and a zero adjustment mechanism 5 disposed on the magnetizing table mechanism 2; the support frame 1 is a portal frame, and the specific structure of the support frame can be designed according to actual needs; the magnetizing table mechanism 2 is mainly used for placing a magnetic signal wheel 6 to be magnetized and carrying out primary positioning on the magnetic signal wheel 6; the driving source 4 is mainly used for driving the magnetizing head mechanism 3 to lift so as to be matched with the magnetizing table mechanism 2 and carrying out magnetizing operation on the magnetic signal wheel 6 placed on the magnetizing table mechanism 2; the main function of the zero adjustment mechanism 5 is to accurately position the magnetic signal wheels 6 placed on the magnetizing table mechanism 2, so as to ensure the consistency of the magnetizing angle of each magnetic signal wheel 6.

Referring to fig. 2, the magnetizing table mechanism 2 includes a magnetizing module base 21 and a support component 22 disposed on the magnetizing module base 21, wherein the support component 22 mainly functions to support the magnetic signal wheel 6.

Referring to fig. 2 and 3, the support assembly 22 includes a shaft seat 222 rotatably disposed on the magnetizing module seat 21 through a deep groove ball bearing 221, a fixing hole for the shaft seat 222 to penetrate is disposed at a position of the magnetizing module seat 21 corresponding to the shaft seat 222, a spindle 223 coaxially and vertically disposed with the shaft seat 222 is fixedly connected to the shaft seat 222, a support cylinder 224 fixedly connected with the shaft seat 222 is coaxially sleeved outside the spindle 223, a cushion cylinder 225 fixedly connected with the shaft seat 222 is coaxially sleeved outside the support cylinder 224, and a top end of the cushion cylinder 225 is lower than a top end of the support cylinder 224.

A support plate 2241 sleeved outside the spindle 223 and horizontally disposed is fixedly connected to an end of the support cylinder 224 away from the shaft seat 222, an upper surface of the support plate 2241 is lower than the spindle 223, and the magnetic signal wheel 6 can be placed on the support plate 2241.

The position of the magnetizing module seat 21 on one side of the supporting component 22 is provided with a photoelectric sensor 24, and the photoelectric sensor 24 is installed on the upper surface of the magnetizing module seat 21 through a supporting seat 25 and is mainly used for detecting whether the magnetic signal wheel 6 is placed on the supporting plate 2241.

Referring to fig. 4, 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 magnetizing surface, and the magnetizing surface is filled with a plurality of strong magnetic segments and weak magnetic segments arranged at intervals. The center of the wheel body 61 is provided with a center hole 62 for the main shaft 223 to pass through, the position of the wheel body 61 surrounding the center hole 62 is provided with a plurality of detection holes 63 distributed at equal intervals on the circumference, and a special-shaped hole 64 is arranged between two adjacent detection holes 63.

Referring to fig. 4 and 5, a zero-point stopper 226 for positioning the special-shaped hole 64 of the magnetic signal wheel 6 is disposed on the support plate 2241, the zero-point stopper 226 can slide along the axial direction of the spindle 223, the support plate 2241 faces one side of the shaft seat 222 and is fixedly connected with a fixing block 227 corresponding to the position of the zero-point stopper 226, an accommodating groove 2271 is disposed on the fixing block 227, a compression spring 228 is disposed in the accommodating groove 2271, one end of the compression spring 228 is connected with the zero-point stopper 226, the other end of the compression spring is connected with an inner bottom wall of the accommodating groove 2271, and when the compression spring 228 is in a natural state, a part of the rod body of the zero-point stopper 226 extends out of the surface of the support plate 2241.

The positions of the support plate 2241 on both sides of the zero limit pin 226 are respectively and fixedly connected with positioning pins 229, and the two positioning pins 229 correspond to the positions of the detection holes 63 on both sides of the special-shaped hole 64 on the magnetic signal wheel 6 one by one.

When the magnetic signal wheel is placed, the central hole 62 of the magnetic signal wheel 6 is aligned with the main shaft 223, the special-shaped hole 64 is aligned with the zero-point limiting pin 226, and the detection hole 63 is aligned with the positioning pin 229, and then the magnetic signal wheel is directly sleeved on the main shaft 223.

Referring to fig. 6 and 7, the driving source 4 includes a guide cylinder 41 installed on a cross beam of the support frame 1, a piston rod of the guide cylinder 41 is arranged vertically downward, a horizontally arranged hanger plate 42 is fixedly connected to a free end of the piston rod of the guide cylinder 41, and the hanger plate 42 is rectangular; the magnetic head filling mechanism 3 comprises a tooling plate 31 which is detachably connected with a hanging plate 42 and is rectangular, a positioning shaft 32 which is fixedly connected at the center of one side of the tooling plate 31, which deviates from the hanging plate 42, and is coaxially arranged with a main shaft 223, an adapter plate 33 which is sleeved on the positioning shaft 32 and can be rotationally adjusted relative to the tooling plate 31, a magnetizing cylinder 34 which is fixed at one side of the adapter plate 33, which deviates from the tooling plate 31, and an annular magnetizing head which is embedded in the magnetizing cylinder 34 and is connected with a magnetizing assembly (not shown), wherein the size of the tooling plate 31 is larger than that of the adapter plate 33, two mounting blocks 311 are symmetrically and fixedly connected at one side of the tooling plate 31, which is far away from the adapter plate 33, and the hanging plate 42 is connected with the two mounting blocks 311 through bolts.

During operation, the magnetic head charging mechanism 3 is driven by the guide cylinder 41 to move downwards until the annular magnetic head is sleeved outside the magnetic signal wheel 6 for charging magnetism.

The height rod 37 that extends along location axle 32 axial is installed to the position that the frock board 31 lower surface just is close to the one corner, threaded connection has adjustable height head 371 on the height rod 37, the position that is located under the height rod 37 is equipped with the first proximity sensor 27 that is fixed in magnetization module seat 21 upper surface through L shaped plate 26, the detection head of first proximity sensor 27 is towards height head 371, when filling magnetic head mechanism 3 and taking one's place, height head 371 and first proximity sensor 27 contact, realize signal intercommunication, whether mainly used for detects the annular magnetization head and descend to target in place, thereby guarantee to fill going on smoothly of magnetic operation.

Referring to fig. 7, a zero position shaft 35 extending axially along the positioning shaft 32 is fixedly connected to a position of the positioning shaft 32 away from one end of the tooling plate 31 and facing the zero position limit pin 226, a first zero position rod 351 and a second zero position rod 352 which are coaxial and sequentially arranged are integrally connected to a free end of the zero position shaft 35, and the diameter of the first zero position rod 351 is larger than that of the second zero position rod 352 but smaller than the minimum diameter of the special-shaped hole 64 on the magnetic signal wheel 6.

Referring to fig. 8, the adapter plate 33 is approximately circular, three fastening bolts 36 are disposed between the adapter plate 33 and the tooling plate 31, a slide 312 for the fastening bolts 36 to pass through and slide is disposed at a position on the tooling plate 31 corresponding to each fastening bolt 36, the width of the slide 312 is greater than the diameter of the rod body of the fastening bolt 36 and smaller than the diameter of the nut of the fastening bolt 36, the rod body of the fastening bolt 36 passes through the slide 312 to be in threaded connection with the adapter plate 33, in general, the nut of the fastening bolt 36 abuts against the upper surface of the tooling plate 31, and the slide 312 may be linear or arc-shaped as required, as long as the adapter plate 33 can be rotated for fine adjustment.

Referring to fig. 9, a fine adjustment assembly 9 is arranged at a position, which is far away from one side of the adapter plate 33 and close to the edge, of the tooling plate 31, and is mainly used for debugging the magnetizing angle of the annular magnetizing head in the early stage, so that the magnetizing precision is prevented from being influenced by errors generated in the production or assembly process. The fine adjustment assembly 9 includes a fixing seat 91 installed on the tooling plate 31, a sliding seat 92 installed on the tooling plate 31 and opposite to the fixing seat 91, and a dial indicator 93 installed on the fixing seat 91 and having a measuring head always abutting against the sliding seat 92.

Referring to fig. 9 and 10, the fixing base 91 includes a first fixing plate 911 and a second fixing plate 912 which are integrally formed and have an L shape therebetween, the first fixing plate 911 is fixed to a position of the tool plate 31 near one edge thereof by screws, a dividing groove 913 is formed in the second fixing plate 912 inward from the edge of the tool plate 31, the dividing groove 913 penetrates through the second fixing plate 912 in a thickness direction and divides the second fixing plate 912 into an upper clamping plate 914 and a lower clamping plate 915, the upper clamping plate 914 can be slightly deformed relative to the lower clamping plate 915, a shaft hole 916 is formed between the upper clamping plate 914 and the lower clamping plate 915, and when the fixing base is installed, the shaft hole 916 of the dial indicator 93 penetrates through the shaft hole 916 in a direction of the slide carriage 92, and then penetrates through the upper clamping plate 914 and is in threaded connection with the lower clamping plate 915 by bolts, so that the upper clamping plate 914 and the lower clamping plate 915 clamp 93 are clamped.

Referring to fig. 9 and 11, the slide 92 includes integrated into one piece's riser 921 and diaphragm 922, is the L shape between the two, and diaphragm 922 laminates in the surface of frock board 31, and riser 921 is just right with second fixed plate 912 setting, and the central siphon of percentage table 93 is perpendicular mutually with riser 921.

Referring to fig. 8 and 11, a guide block 923 extending into the tool plate 31 is fixedly connected to the lower surface of the transverse plate 922, the cross section of the guide block 923 is rectangular, a guide groove 313 extending along the telescopic direction of the measuring head of the dial indicator 93 is processed at a position on the tool plate 31 corresponding to the guide block 923, the guide block 923 slides in the guide groove 313, the width of the guide block 923 is matched with the width of the guide groove 313, a shift lever 924 extending into the adapter plate 33 is fixedly connected to one end of the guide block 923, which is far away from the transverse plate 922, a bar-shaped movable groove 331 perpendicular to the guide groove 313 is formed at a position on the adapter plate 33 corresponding to the shift lever 924, and the shift lever 924 is located at the middle position of the bar-shaped movable groove 331 in an initial state.

Strip-shaped fixing grooves 925 are formed in the plate surfaces of the transverse plate 922 on the two sides of the guide groove 313 respectively, the strip-shaped fixing grooves 925 extend in the length direction of the guide groove 313, fixing bolts 926 are arranged on the transverse plate 922 corresponding to the two strip-shaped fixing grooves 925 respectively, screws of the fixing bolts 926 penetrate through the strip-shaped fixing grooves 925 and are in threaded connection with the tool plate 31, and normally, nuts of the fixing bolts 926 abut against the transverse plate 922 to fix the slide base 92.

During debugging, the fastening bolt 36 and the fixing bolt 926 are loosened, the sliding base 92 is moved along the guide groove 313, and in the moving process, the shift lever 924 slides in the strip-shaped movable groove 331 and shifts the adapter plate 33 to rotate, so that fine adjustment of the angle of the annular magnetizing head is realized; in the debugging process, the staff can ensure the debugging precision through the reading on the dial indicator 93, and the specific principle is as follows: the angle that needs to be rotated, i.e. the angular deviation, is converted into a reading of the dial indicator 93, reading the value =2 pi r (angle/360 °); after the adjustment is completed, the fastening bolt 36 and the fixing bolt 926 are tightened.

Referring to fig. 9, the magnetic head charging mechanism 3 further includes a detection module 39, when the ring-shaped magnetizing head is in place, the detection module 39 detects the parallelism of the magnetic signal wheel 6 to be charged, and if the parallelism of the magnetic signal wheel 6 does not meet the requirement, that is, if one side of the wheel body 61 is tilted due to no leveling, placing or deformation, the charging is stopped; if the parallelism of the magnetic signal wheel 6 meets the requirement, the magnetization is started.

Referring to fig. 7 and 9, the detecting module 39 includes a detecting plate 391 horizontally disposed right below the positioning shaft 32 and inside the magnetizing cylinder 34, a special plate 392 disposed between the tooling plate 31 and the hanger plate 42 and parallel to the detecting plate 391, a guide shaft 393 slidably passed through the positioning shaft 32 and the tooling plate 31 and having both ends fixedly connected to the detecting plate 391 and the special plate 392, respectively, and a return spring 394 disposed between the positioning shaft 32 and the detecting plate 391; a through hole for the zero axis 35 to pass through is formed in the position, corresponding to the zero axis 35, of the detection plate 391, and three thread support feet 395 for abutting against the magnetic signal wheel 6 are fixedly connected to one side, away from the positioning shaft 32, of the detection plate 391; the locating shaft 32 and the opposite side of the detection plate 391 are both provided with grooves, two ends of a return spring 394 are respectively embedded into the two grooves, when the return spring 394 is in a natural state, the special-shaped plate 392 is tightly attached to the upper surface of the tooling plate 31 under the influence of gravity and the elastic factor of the return spring 394, and at the moment, a moving space exists between the detection plate 391 and the locating shaft 32. In order to prevent the return spring 394 from falling off, the length of the return spring 394 needs to be greater than the maximum displacement of the detection plate 391 during design.

One side of the special-shaped plate 392 is provided with a lifting block 396 parallel to the tooling plate 31, the lifting block 396 is slidably mounted on the tooling plate 31 through two linear bearings 397, a first adjusting bolt 398 in threaded connection with the lifting block 396 between the two linear bearings 397 vertically penetrates through the lifting block 396 positioned between the two linear bearings 397, one end of the first adjusting bolt 398 positioned above the lifting block 396 is a detection surface, a cross-shaped through hole is formed in a rod body of the first adjusting bolt 398 positioned below the lifting block 396, and an operator can adjust the height of the detection surface by matching a rod-shaped tool with the through hole; a vertical plate 399 axially extending along the positioning shaft 32 is fixedly connected to the plate surface of the special-shaped plate 392 on one side close to the lifting block 396, one end, far away from the special-shaped plate 392, of the vertical plate 399 is fixedly connected with a horizontal plate 400 horizontally extending to the position right above the first adjusting bolt 398, a second proximity sensor 401 opposite to the detection surface is installed on the horizontal plate 400, the magnetic head charging mechanism 3 is in an initial state or when the parallelism of the magnetic signal wheel 6 meets the requirement, the detection head of the second proximity sensor 401 abuts against the detection surface of the first adjusting bolt 398, and signal communication is maintained.

Referring to fig. 9 and 12, a guide post 402 is fixed to the upper surface of the magnetizing module base 21, a second adjusting bolt 403 with adjustable height is screwed to the free end of the guide post 402, and a guide sleeve 404 through which the guide post 402 slides is inserted and installed at a position of the tooling plate 31 below the lift block 396.

Referring to fig. 6, 7 and 9, during debugging, the magnetic signal wheel 6 to be magnetized is placed on the supporting plate 2241, the magnetic head charging mechanism 3 is driven to slowly descend through the guide cylinder 41, the guide post 402 gradually penetrates through the guide sleeve 404 in the descending process and jacks the lifting block 396 through the second adjusting bolt 403, and in the jacking process, the lifting block 396 drives the detection plate 391 to synchronously ascend through the horizontal plate 400, the vertical plate 399, the special-shaped plate 392 and the guide shaft 393; when the head charging mechanism 3 is in position, if the detection head of the second proximity sensor 401 is separated from the detection surface of the first adjustment bolt 398, the second adjustment bolt 403 needs to be rotated to perform adjustment so that the second proximity sensor 401 is in contact with the detection surface and signal communication is maintained.

In the actual magnetizing operation, when the magnetizing head mechanism 3 is in place, if the lifting block 396 and the detection plate 391 stop rising simultaneously and the detection head of the second proximity sensor 401 is kept in contact with the detection surface of the first adjusting bolt 398, it indicates that the parallelism of the magnetic signal wheel 6 meets the requirement; if the elevation of the elevator block 396 is stopped and the detection plate 391 continues to be elevated, and the detection head of the second proximity sensor 401 is separated from the detection surface of the first adjustment bolt 398, it means that the parallelism of the magnetic signal wheel 6 is not satisfactory.

Referring to fig. 12, the zero adjustment mechanism 5 includes a zero linkage rod 51, a limiting seat 52, a force application source 53 and a force storage source 54; the zero-position linkage rod 51 is an irregular plate-shaped rod body, one end of the zero-position linkage rod is fixed on the shaft seat 222 through a screw, the other end of the zero-position linkage rod extends horizontally, and a yielding hole for allowing one end of the zero-position linkage rod 51 to extend into is formed in the positions, corresponding to the zero-position linkage rod 51, of the support cylinder 224 and the cushion cylinder 225; the limiting seat 52 is fixed on the magnetizing module seat 21, and the force application source 53 and the force storage source 54 are respectively arranged on two sides of the zero-position linkage rod 51.

A cushion block 55 is fixedly connected to the middle position of one side of the zero-position linkage rod 51, which faces the magnetizing module seat 21; the limiting seat 52 comprises a main arm 521 fixed on the magnetizing module seat 21 right below the spacer block 55, side arms 522 integrally formed at two ends of the main arm 521 and respectively located at two sides of the spacer block 55, and a first limiting bolt 523 and a second limiting bolt 524 respectively arranged on the two side arms 522; the main arm 521 and the zero-position linkage rod 51 are arranged in a crossed mode, the two side arms 522 and the main arm 521 are in a U-shaped structure, the first limiting bolt 523 and the second limiting bolt 524 penetrate through the side arm 522 and are in threaded connection with the side arm 522, and during debugging, the rotation angle of the zero-position linkage rod 51 is limited by adjusting the relative positions of the first limiting bolt 523 and the second limiting bolt 524.

The main function of the force applying source 53 is to apply an external force to the zero-position linkage rod 51, so that the main shaft 223 maintains the initial state, so that the first zero-position rod 351 can be inserted into the profiled hole 64 of the magnetic signal wheel 6 when the head-charging mechanism 3 is in place. More specifically, the force application source 53 is a zero-position cylinder, which is installed on the magnetizing module base 21 and located on the same side as the second limit bolt 524, and when a piston rod of the zero-position cylinder extends and retracts, a free end of the piston rod can abut against the zero-position linkage rod 51.

Referring to fig. 12 and 13, the primary function of the storage power source 54 is to store force when the urging source 53 is urging force, and to release force when the urging source 53 stops urging force. More specifically, the energy storage source 54 includes a spring seat 541 fixed on the magnetizing module seat 21 and located on the same side as the first limit bolt 523, a zero position spring 542 disposed in the spring seat 541, one end of which extends out of the spring seat 541 and is always abutted against the cushion block 55, and a distance adjusting bolt piece 543 installed on one side of the spring seat 541 away from the zero position spring 542; the spring seat 541 is rectangular and is provided with an accommodating cavity 5411 from one side close to the zero position linkage rod 51 to the inside, the zero position spring 542 is positioned in the accommodating cavity 5411, and the spring seat 541 is also provided with a pair of mounting holes 5412 which penetrate through the spring seat 541 so as to facilitate the fixation of screws; the distance-adjusting bolt piece 543 comprises a bolt rod 5431 which is in threaded connection with the spring seat 541 and one end of which extends into the accommodating cavity 5411, and a top head 5432 which is located in the accommodating cavity 5411 and is in taper fit connection with the bolt rod 5431, and the degree of compression of the zero position spring 542 can be adjusted by rotating the bolt rod 5431 as required.

In an initial state, a piston rod of the force application source 53 abuts against a side wall of the zero-position linkage rod 51 close to the free end, so that the zero-position linkage rod 51 is in contact with the first limit bolt 523 under the action of the force application source 53, at the moment, a movable gap exists between the zero-position linkage rod 51 and the second limit bolt 524, and the force storage source 54 is in a force storage state, namely the zero-position spring 542 is compressed; when the piston rod of the force applying source 53 contracts, the force accumulating source 54 is in a force releasing state, that is, the zero position spring 542 pushes the zero position linkage rod 51 through the cushion block 55 to drive the shaft seat 222 to rotate, in the rotation process of the shaft seat 222, the main shaft 223 drives the magnetic signal wheel 6 to be magnetized to rotate along with the zero position linkage rod 51 until the zero position linkage rod 51 contacts with the second limit bolt 524, at this time, the inner wall of the special-shaped hole 64 of the magnetic signal wheel 6 abuts against the outer side wall of the first zero position rod 351, so that the zero position gap is eliminated, the consistency of the magnetizing angle of each magnetic signal wheel 6 is ensured, and the magnetizing precision is improved.

The implementation principle of the embodiment of the application is as follows:

the first step is as follows: placing the magnetic signal wheel 6 to be magnetized on the support plate 2241;

the second step is that: detecting whether the magnetic signal wheel 6 to be magnetized is in place or not through the photoelectric sensor 24, if so, starting the guide cylinder 41 to drive the magnetic head charging mechanism 3 to descend;

the third step: in the process of driving the magnetic head charging mechanism 3 to descend, whether the magnetic head charging mechanism 3 is in place is detected through the first proximity sensor 27, and whether the parallelism of the magnetic signal wheel 6 meets the requirement is detected through the detection module 39;

the fourth step: the piston rod of the force application source 53 contracts, and simultaneously the force storage source 54 pushes the zero-position linkage rod 51 to drive the main shaft 223 to rotate, so that the inner wall of the special-shaped hole 64 of the magnetic signal wheel 6 abuts against the outer side wall of the first zero-position rod 351, and the zero-position positioning gap is eliminated;

the fifth step: the annular magnetizing head performs magnetizing operation on the magnetic signal wheel 6;

and a sixth step: after the magnetization is completed, the force application source 53 and the guide cylinder 41 are sequentially reset, and the magnetic signal wheel 6 is taken away and then cyclically reciprocated.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a magnetism signal wheel magnetizes uses magnetization device which characterized in that: the device comprises a support frame (1), a magnetizing table mechanism (2) arranged below the support frame (1) and used for placing a magnetic signal wheel (6), a magnetizing head mechanism (3) arranged right above the magnetizing table mechanism (2) and used for magnetizing the magnetic signal wheel (6), a driving source (4) arranged on the support frame (1) and used for driving the magnetizing head mechanism (3) to ascend and descend, and a zero position adjusting mechanism (5) arranged on the magnetizing table mechanism (2) and used for accurately positioning the magnetic signal wheel (6) to be magnetized.

2. A magnetizing apparatus for magnetizing a magnetic signal wheel according to claim 1, wherein: the magnetizing table mechanism (2) at least comprises a magnetizing module seat (21) which is horizontally arranged and a supporting component (22) which is arranged on the magnetizing module seat (21);

the supporting component (22) comprises a shaft seat (222) which vertically penetrates through the magnetizing module seat (21) and is rotatably connected with the magnetizing module seat (21), a spindle (223) which is fixedly connected to the shaft seat (222) and is coaxially arranged with the shaft seat (222), a supporting cylinder (224) which is coaxially sleeved outside the spindle (223) and is fixedly connected with the shaft seat (222), and a supporting disk (2241) which is coaxially sleeved outside the spindle (223) and is fixedly connected to one end, far away from the shaft seat (222), of the supporting cylinder (224), wherein a zero limit pin (226) which penetrates through a special-shaped hole (64) of the magnetic signal wheel (6) to position the magnetic signal wheel (6) is arranged on the supporting disk (2241).

3. A magnetizing apparatus for magnetizing a magnetic signal wheel according to claim 2, wherein: the utility model discloses a bearing plate, including bearing plate (2271), bearing plate (2241), holding tank (2271) are equipped with one end and are connected with limit pin (226) at zero point, the compression spring (228) that the other end is connected with the interior diapire wall of holding tank (2271) are equipped with in holding tank (2271), zero point spacer pin (226) slide to wear to locate on supporting disk (2241), supporting disk (2241) is equipped with fixed block (227) towards one side rigid coupling of axle bed (222), holding tank (227) are gone up to correspond the position of limit pin (226) at zero point.

4. A magnetizing apparatus for magnetizing a magnetic signal wheel according to claim 2, wherein: the drive source (4) comprises a guide cylinder (41) which is arranged on a cross beam of the support frame (1) and a piston rod of which is arranged vertically downwards, and a hanging plate (42) which is fixedly connected with the free end of the piston rod of the guide cylinder (41) and is horizontally arranged, and the magnetic head charging mechanism (3) is arranged on the hanging plate (42).

5. A magnetizing apparatus for magnetizing a magnetic signal wheel according to claim 4, wherein: fill magnetic head mechanism (3) including can dismantle frock board (31) of being connected with hanger plate (42), rigid coupling in frock board (31) deviate from the center department of hanger plate (42) one side and with location axle (32) that main shaft (223) coaxial line set up, establish on location axle (32) and can rotate adapter plate (33) of adjustment relatively frock board (31), fix and deviate from a magnetization section of thick bamboo (34) of frock board (31) one side in adapter plate (33), and inlay the annular magnetization head that is used for magnetizing of installing in magnetization section of thick bamboo (34).

6. A magnetizing apparatus for magnetizing a magnetic signal wheel according to claim 5, wherein: be equipped with a plurality of fastening bolt (36) of connecting two between frock board (31) and adapter plate (33), the slide (312) that supplies fastening bolt (36) to pass and slide so that adapter plate (33) can rotate the adjustment relatively frock board (31) have all been seted up to the position that corresponds every fastening bolt (36) on frock board (31), the width of slide (312) is greater than the diameter of the body of rod of fastening bolt (36), be less than the diameter of the nut of fastening bolt (36), the body of rod of fastening bolt (36) passes slide (312) and adapter plate (33) threaded connection, the nut butt of fastening bolt (36) is in one side that adapter plate (33) was kept away from in frock board (31).

7. A magnetizing apparatus for magnetizing a magnetic signal wheel according to claim 6, wherein: a fine adjustment assembly (9) is arranged at a position, which is far away from one side of the adapter plate (33) and close to the edge, of the tooling plate (31);

the fine adjustment component (9) comprises a fixed seat (91) fixed on the tooling plate (31), a sliding seat (92) arranged opposite to the fixed seat (91), a dial indicator (93) arranged on the fixed seat (91) and a measuring head always abutting against the sliding seat (92), and a guide block (923) fixedly connected on the sliding seat (92) and extending into the tooling plate (31), the shifting rod (924) is fixedly connected to one end, far away from the sliding seat (92), of the guide block (923) and extends into the adapter plate (33), a guide groove (313) extending along the telescopic direction of a measuring head of the dial indicator (93) is machined in the position, corresponding to the guide block (923), of the tooling plate (31), the guide block (923) slides in the guide groove (313), and a strip-shaped movable groove (331) perpendicular to the guide groove (313) and used for the shifting rod (924) to shift the adapter plate (33) to rotate is formed in the position, corresponding to the shifting rod (924), of the adapter plate (33);

a fixing bolt (926) penetrates through the sliding seat (92), a screw of the fixing bolt (926) penetrates through the sliding seat (92) and is in threaded connection with the tool plate (31), a nut of the fixing bolt (926) abuts against the sliding seat (92), and a strip-shaped fixing groove (925) extending along the length direction of the guide groove (313) is machined in the position, corresponding to the fixing bolt (926), of the sliding seat (92).

8. A magnetizing apparatus for magnetizing a magnetic signal wheel according to claim 5, wherein: the magnetic head filling mechanism (3) further comprises a detection module (39), the detection module (39) comprises a detection plate (391) which is horizontally arranged under the positioning shaft (32) and is positioned in the magnetizing cylinder (34), a special-shaped plate (392) which is positioned between the tooling plate (31) and the hanging plate (42) and is parallel to the detection plate (391), a guide shaft (393) which slides through the positioning shaft (32) and the tooling plate (31) and is fixedly connected with the detection plate (391) and the special-shaped plate (392) at two ends respectively, and a reset spring (394) which is connected between the positioning shaft (32) and the detection plate (391), and a movable space exists between the detection plate (391) and the positioning shaft (32);

one side of the special-shaped plate (392) is provided with a lifting block (396) which is slidably mounted on the tool plate (31) through a linear bearing (397), a first adjusting bolt (398) in threaded connection with the lifting block (396) penetrates through the lifting block (396), a vertical plate (399) which extends along the axial direction of the positioning shaft (32) is fixedly connected to the plate surface of one side, close to the lifting block (396), of the special-shaped plate (392), one end, far away from the special-shaped plate (392), of the vertical plate (399) is fixedly connected with a horizontal plate (400) which extends horizontally to the position right above the first adjusting bolt (398), and a second approach sensor (401) which is matched with the first adjusting bolt (398) to detect the parallelism of the magnetic signal wheel (6) is mounted on the horizontal plate (400);

a guide post (402) extending along the axial direction of the main shaft (223) is fixed on the magnetizing module seat (21), a second adjusting bolt (403) is connected to the free end of the guide post (402) in a threaded manner, and a guide sleeve (404) for the guide post (402) to slide and penetrate to drive the lifting block (396) to ascend is embedded and installed in the position, below the lifting block (396), of the tooling plate (31).

9. A magnetizing apparatus for magnetizing a magnetic signal wheel according to claim 5, wherein: a zero position shaft (35) axially extending along the positioning shaft (32) is fixedly connected to a position, far away from one end of the tooling plate (31), of the positioning shaft (32) and opposite to the zero position limit pin (226), a first zero position rod (351) and a second zero position rod (352) which are coaxial and sequentially arranged are integrally connected to the free end of the zero position shaft (35), and the diameter of the first zero position rod (351) is larger than that of the second zero position rod (352) and smaller than the minimum diameter of a special-shaped hole (64) in the magnetic signal wheel (6);

the zero-position adjusting mechanism (5) comprises a zero-position linkage rod (51) with one end fixed on the shaft seat (222) and the other end horizontally extending in the direction departing from the shaft seat (222), a limiting seat (52) fixed on the magnetizing module seat (21) and used for limiting the rotation angle of the zero-position linkage rod (51), and a force application source (53) and a force storage source (54) which are fixed on the magnetizing module seat (21) and respectively positioned at two sides of the zero-position linkage rod (51), wherein a position yielding port for one end of the zero-position linkage rod (51) to stretch into is formed in the position, corresponding to the zero-position linkage rod (51), of the supporting cylinder (224);

the power storage source (54) stores force when the force application source (53) applies force, releases force when the force application source (53) stops applying force, and drives the main shaft (223) to rotate through the zero-position linkage rod (51) so as to eliminate zero-point positioning clearance.

10. A magnetizing apparatus for magnetizing a magnetic signal wheel according to claim 9, wherein: the limiting seat (52) comprises a main arm (521) which is fixed under the zero-position linkage rod (51) and is arranged in a crossed manner with the zero-position linkage rod (51), side arms (522) which are integrally formed at two ends of the main arm (521) and are respectively positioned at two sides of the cushion block (55), and a first limiting bolt (523) and a second limiting bolt (524) which are respectively in threaded connection with the two side arms (522) and can be adjusted in a relatively or oppositely moving manner;

the force application source (53) is a zero-position cylinder which is positioned on the same side with the second limit bolt (524);

the power accumulation source (54) comprises a spring seat (541) which is fixed on the magnetizing module seat (21) and is positioned at the same side with the first limit bolt (523), and a zero position spring (542) which is arranged in the spring seat (541) and one end of which extends out of the spring seat (541) and is always abutted to the zero position linkage rod (51).

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