CN214703424U - Detection device for magnetic signal wheel machining - Google Patents

Abstract

The application relates to the field of magnetic signal detection, especially, relate to a detection device is used in processing of magnetic signal wheel, including horizontally workstation, set up on the workstation and in order to supply the year thing mechanism that the magnetic signal wheel was placed, be located the hold-down mechanism directly over the thing mechanism, install on the workstation and be located zero positioning mechanism and the magnetism detection mechanism of the relative both sides of year thing mechanism respectively to and set up on the workstation in order to drive magnetic signal wheel pivoted actuating mechanism. The magnetic signal wheel delivery device has the effect of improving the delivery qualification rate of the magnetic signal wheel.

Description

Detection device for magnetic signal wheel machining

Technical Field

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

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 the magnetizing position of the strong magnetic section and the weak magnetic section is deviated due to the influence of a plurality of objective factors in the magnetizing process of the magnetic signal wheel according to production experience of many years, the magnetizing precision is influenced, and further the ex-factory defective rate is high.

In the above-described related art, the inventors considered that there was a defect that the defective rate was high.

SUMMERY OF THE UTILITY MODEL

In order to improve the ex-factory qualification rate of the magnetic signal wheel, the application provides a detection device for processing the magnetic signal wheel.

The application provides a detection device is used in processing of magnetic signal wheel adopts following technical scheme:

the utility model provides a detection device is used in processing of magnetic signal wheel, includes horizontally workstation, sets up on the workstation in order to supply the year thing mechanism that the magnetic signal wheel was placed, be located the hold-down mechanism directly over the thing mechanism, install on the workstation and be located zero positioning mechanism and the magnetism detection mechanism of the relative both sides of year thing mechanism respectively to and set up on the workstation in order to drive the pivoted actuating mechanism of magnetic signal wheel.

By adopting the technical scheme, during operation, the magnetic signal wheel to be magnetized is placed on the object carrying mechanism, the magnetic signal wheel is pressed in place through the pressing mechanism, then the zero point positioning mechanism is used for carrying out zero point positioning on the magnetic signal wheel, and then the driving mechanism is used for driving the magnetic signal wheel on the object carrying device to horizontally rotate so that the magnetic detection mechanism can detect the magnetic section on the magnetic signal wheel, so that the qualified magnetic signal wheel is screened out, and the outgoing quality is improved.

Preferably, the carrying mechanism comprises a supporting shaft vertically penetrating through the workbench and rotatably connected with the workbench, and at least two supporting blocks symmetrically arranged on the supporting shaft for the magnetic signal wheel to be placed.

By adopting the technical scheme, when the magnetic signal wheel is placed, the central hole of the magnetic signal wheel is aligned with the supporting shaft and then sleeved on the supporting shaft, and the supporting block supports the magnetic signal wheel.

Preferably, a photoelectric sensor fixed through a vertical rod is arranged on the workbench on one side of the supporting shaft, and the photoelectric sensor is opposite to the supporting block.

Through adopting above-mentioned technical scheme, photoelectric sensor's setting for whether place the magnetic signal wheel on the detection supporting shoe.

Preferably, the pressing mechanism comprises a pressing cylinder which is positioned right above the loading mechanism and is vertically arranged with a piston rod towards the workbench, a suspension plate which is arranged on the piston rod of the pressing cylinder and is horizontally arranged, a pressure head which is positioned right below the suspension plate and is coaxially arranged with the supporting shaft, and a plurality of guide pins which are connected between the suspension plate and the pressure head.

By adopting the technical scheme, when the magnetic signal wheel is in place, the pressing cylinder is started, so that the suspension plate drives the pressing head to move towards the direction of the loading mechanism through the guide pin, and the magnetic signal wheel which is not laid flat is pressed in place.

Preferably, one end of the guide pin, which is far away from the suspension plate, is fixedly connected with a limiting end head, the diameter of the limiting end head is larger than that of the guide pin, one end of the guide pin, which is fixedly connected with the limiting end head, extends into the pressure head, and a guide hole for the limiting end head to slide is formed in the position, corresponding to the position, into which the limiting end head extends, of the pressure head;

and the guide pin is sleeved with a buffer spring of which two ends are respectively abutted against one side of the suspension plate opposite to the pressure head.

Through adopting above-mentioned technical scheme, buffer spring's setting, mainly used buffering pressure head is used for the pressure on the magnetic signal wheel to protect the magnetic signal wheel.

Preferably, one side of the suspension plate far away from the pressing cylinder is fixedly connected with a supporting column which is coaxially arranged with the pressure head, and the free end of the supporting column is higher than the bottom of the pressure head.

Through adopting above-mentioned technical scheme, the setting of pillar mainly is used for restricting the compressed amount of buffer spring.

Preferably, zero point positioning mechanism includes tensioning unit and the balancing piece of fixed mounting in two supporting shoe back of the body one side mutually to and install the first power supply on the workstation that carries thing mechanism one side and be located the tensioning unit below.

By adopting the technical scheme, the tensioning unit is mainly used for positioning the magnetic signal wheel; the main function of the balance weight is to balance the gravity of the tension unit so that the support shaft drives the magnetic signal wheel to rotate smoothly.

Preferably, the tensioning unit comprises a main wall plate, a first side wall plate and a second side wall plate which are integrally formed at two sides of the main wall plate and are in a U-shaped structure with the main wall plate, two guide rods which are fixedly connected between the first side wall plate and the second side wall plate and are axially vertical to the support shaft, a sliding plate which slides on the two guide rods, and tensioning blocks which are respectively fixedly connected on the end surfaces of the first side wall plate and the sliding plate at one side far away from the workbench and are higher than the surface of the support block, the first spring is sleeved on the guide rod, two ends of the first spring are respectively abutted against the sliding plate and the first side wall plate, the movable plate is slidably mounted on one side, facing the sliding plate, of the main wall plate through a linear guide rail axially arranged along the support shaft, the bottom boss is formed between the first side wall plate and the second side wall plate and is far away from one end of the tensioning block, the convex block is fixedly connected to one end, far away from the tensioning block, of the movable plate and penetrates through the bottom boss in a sliding mode, and the pulley is mounted on one side, facing the sliding plate, of the movable plate and extends into the sliding plate;

a notch is formed in the sliding plate corresponding to the position where the pulley extends in, a guide wall which is always contacted with the peripheral surface of the pulley is formed in the position, opposite to the second side wall plate, in the notch, and the guide wall is obliquely arranged from the convex block to the tensioning block and from the first side wall plate to the second side wall plate;

the first side wall plate is fixed on one side, far away from the supporting shaft, of the supporting block, a top boss is fixedly connected to the position, facing the moving plate and close to the tensioning block, of the first side wall plate, a bearing plate located right below the top boss is fixedly connected to the position, facing one side of the first side wall plate and close to the protruding block, of the moving plate, and a second spring is connected between the top boss and the bearing plate;

the first power source comprises a zero positioning cylinder which is arranged on the workbench and is vertically arranged, and the free end of a piston rod of the zero positioning cylinder is fixedly connected with a transmission plate with the height lower than the bump.

By adopting the technical scheme, after the magnetic signal wheel is in place, the two tightening blocks extend into the special-shaped hole of the magnetic signal wheel, at the moment, the zero point positioning cylinder contracts, the moving plate moves downwards along the linear guide rail under the action of the second spring, and in the process, the sliding plate moves towards the direction of the second side wall plate along the guide rod, so that the two tightening blocks move towards the direction away from each other, the magnetic signal wheel is tensioned, the zero point positioning is realized, and the guarantee is provided for magnetic section detection.

Preferably, the magnetic detection mechanism comprises a movable frame arranged on one side of the carrying mechanism, and a magnetic sensor fixedly arranged on the movable frame and arranged towards one side of the carrying mechanism.

By adopting the technical scheme, after the magnetic signal wheel is in place, the detection head of the magnetic sensor is over against the circumferential surface of the magnetic signal wheel, so that the magnetic section on the magnetic signal wheel is detected.

Preferably, the driving mechanism comprises a motor fixed on the workbench and an output shaft passing through the workbench to the lower part, belt wheels respectively installed on a rod body of which the supporting shaft is located below the workbench and on the output shaft of the motor, and a tensioned belt wound between the two belt wheels.

Through adopting above-mentioned technical scheme, when the motor starts, through belt and band pulley with power transmission to the back shaft on for the back shaft drives the rotation of magnetic signal wheel, so that magnetic sensor detects.

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

1. detection device in this application is when the operation, will treat the magnetism signal wheel of magnetizing and place in and carry thing mechanism, puts the magnetism signal wheel pressure through hold-down mechanism and targets in place, then carries out zero point location to the magnetism signal wheel through zero point positioning mechanism, and immediately, carries the magnetism signal wheel level rotation on the thing device through the actuating mechanism drive to magnetism detection mechanism detects the magnetism section on the magnetism signal wheel, thereby selects qualified magnetism signal wheel, improves the outgoing quality.

Drawings

FIG. 1 is a schematic diagram showing a specific structure of a magnetic signal wheel;

FIG. 2 is a schematic view of the overall structure of the detection device of the present application;

FIG. 3 is a schematic view showing the positional relationship between the loading mechanism, the magnetic detection mechanism and the photoelectric sensor;

FIG. 4 is a schematic view showing a detailed structure of the loading mechanism;

FIG. 5 is a schematic view showing the positional relationship between the loading mechanism, the magnetic detecting mechanism, the zero point positioning mechanism and the photoelectric sensor;

FIG. 6 is a schematic diagram showing a specific structure of a zero point positioning mechanism;

FIG. 7 is a schematic view of a zero point positioning mechanism shown on a side of the support block;

FIG. 8 is a schematic structural diagram showing the positions and connection relationships of the top boss, the bearing plate and the second spring in the zero point positioning mechanism;

FIG. 9 is a schematic view showing a specific structure of the pressing mechanism;

FIG. 10 is a schematic structural view showing the connection relationship between the guide pin and the limit end;

FIG. 11 is a schematic view of a structure embodying the positions of the driving mechanism and the detecting means;

FIG. 12 is a schematic view showing a specific structure of the detecting unit;

FIG. 13 is a schematic structural view showing the positions and connection relationships of the position-limiting ring, the connecting rod and the tension spring under the counterweight ring;

FIG. 14 is a schematic view showing a specific structure of the clamping sleeve;

fig. 15 is a bottom view showing a specific structure below the table.

Description of reference numerals: 1. a magnetic signal wheel; 11. a wheel body; 12. a central bore; 13. a detection hole; 14. a profiled hole; 2. a work table; 3. a carrying mechanism; 31. an outer spherical bearing with a seat; 32. a support shaft; 321. a abdication grooving; 322. a strip-shaped body; 323. a first conical surface; 33. a first block; 34. a second block; 35. a photosensor; 36. a vertical rod; 37. a shaft plate; 38. a limiting pin shaft; 4. a hold-down mechanism; 41. a pressing cylinder; 42. a suspension plate; 43. a pillar; 44. a pressure head; 45. a guide pin; 46. a buffer spring; 47. a limiting end; 48. avoiding the cut; 5. a zero point positioning mechanism; 51. a tension unit; 511. a main wall panel; 512. a first side wall panel; 513. a second sidewall plate; 514. a guide bar; 515. a sliding plate; 516. a tensioning block; 517. a first spring; 518. a linear guide rail; 519. moving the plate; 520. a bottom boss; 521. a bump; 522. a pulley; 523. opening the gap; 524. a guide wall; 525. ejecting a boss; 526. a bearing plate; 527. a second spring; 52. a counterbalance; 53. a first power source; 531. a zero positioning cylinder; 532. a drive plate; 6. a magnetic detection mechanism; 61. a movable frame; 62. a magnetic sensor; 7. a drive mechanism; 71. a motor; 72. a pulley; 73. a belt; 8. a clamping mechanism; 81. a clamping sleeve; 811. a U-shaped cut; 82. a counterweight ring; 83. a limiting ring; 84. a connecting rod; 85. a tension spring; 86. a second power source; 861. a small cylinder; 862. a U-shaped bracket; 863. a swing block; 864. a first bolt; 865. a sliding groove; 866. swinging arms; 867. jacking a head; 868. a support bar; 869. a second bolt; 87. a clamping plate; 88. a second tapered surface; 89. a limiting groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-15.

The embodiment of the application discloses detection device is used in processing of magnetic signal wheel. Referring to fig. 1, the magnetic signal wheel will be briefly described for ease of understanding. The magnetic signal wheel 1 comprises a wheel body 11, wherein the circumferential surface of the wheel body 11 is a magnetizing surface, and a plurality of strong magnetic sections and weak magnetic sections which are arranged at intervals are filled on the magnetizing surface. The center of the wheel body 11 is provided with a center hole 12, a plurality of detection holes 13 which are distributed at equal intervals on the circumference are arranged at positions surrounding the center hole 12 on the wheel body 11, and a special-shaped hole 14 is arranged between two adjacent detection holes 13.

Referring to fig. 2, the detection device includes a horizontal worktable 2, an object carrying mechanism 3 disposed on the worktable 2, a compacting mechanism 4 disposed right above the object carrying mechanism 3, a zero point positioning mechanism 5 and a magnetic detection mechanism 6 mounted on the worktable 2 and respectively disposed at two opposite sides of the object carrying mechanism 3, and a driving mechanism 7 disposed on the worktable 2; the carrying mechanism 3 is mainly used for providing a platform for placing the magnetic signal wheel 1; the pressing mechanism 4 is mainly used for pressing the magnetic signal wheel 1 placed on the carrying mechanism 3 in place; the zero point positioning mechanism 5 is mainly used for performing zero point positioning on the magnetic signal wheel 1; the driving mechanism 7 is mainly used for driving the magnetic signal wheel 1 on the loading device to horizontally rotate, so that the magnetic detection mechanism 6 can detect the magnetic section on the magnetic signal wheel 1, qualified magnetic signal wheels 1 are screened out, and the factory leaving quality is improved.

Referring to fig. 3 and 4, the object carrying mechanism 3 includes a supporting shaft 32 vertically penetrating the surface of the worktable 2 and rotatably disposed on the worktable 2 through the outer spherical bearing 31 with a seat, four abdicating slots 321 distributed at equal intervals on the outer wall of the supporting shaft 32 are formed, the abdicating slots 321 are axially formed along the supporting shaft 32 from one end of the supporting shaft 32 close to the pressing mechanism 4, a strip-shaped body 322 is formed between the adjacent abdicating slots 321, a first conical surface 323 inclined gradually from bottom to top and from outside to inside is formed on the outer side wall of one end of the strip-shaped body 322 departing from the axial side of the supporting shaft 32 and away from the outer spherical bearing 31 with a seat, and a chamfer is formed on the upper edge of one side of the strip-shaped body 322 departing from the first conical surface 323.

Each abdicating notch 321 is fixedly connected with an L-shaped supporting block, the supporting block is lower than the supporting shaft 32, and the four supporting blocks are arranged clockwise or anticlockwise along the axis of the supporting shaft 32. More specifically, the supporting block comprises a first block 33 and a second block 34 which are integrally formed, the first block 33 is fixed on the supporting shaft 32 through a screw, a reserved space is reserved between the second block 34 and the bar-shaped body 322, and a platform for placing the magnetic signal wheel 1 is formed between the four second blocks 34.

One side of back shaft 32 is equipped with photoelectric sensor 35, and photoelectric sensor 35 is fixed in on the workstation 2 through montant 36, and whether the magnetic signal wheel 1 has been placed on the mainly used detection supporting shoe.

Referring to fig. 3 and 5, the zero point positioning mechanism 5 includes a tension unit 51, a weight 52, and a first power source 53; the tensioning unit 51 and the balancing mass 52 are respectively mounted on two opposite second blocks 34; the first power source 53 is mounted on the table 2 on the side of the loading mechanism 3 and below the tension unit 51.

Referring to fig. 5 and 6, the tension unit 51 includes a main wall plate 511, and a first side wall plate 512 and a second side wall plate 513 integrally formed on both sides of the main wall plate 511 and parallel to each other, the main wall plate 511, the first side wall plate 512 and the second side wall plate 513 are U-shaped, and the first side wall plate 512 is fixed to a side of the second block body 34 away from the support shaft 32 by screws. A pair of guide rods 514 is fixedly connected between the first side wall plate 512 and the second side wall plate 513, the axial direction of the guide rods 514 is perpendicular to the axial direction of the support shaft 32, sliding plates 515 which are slidably mounted through linear bearings are arranged on the two guide rods 514, tensioning blocks 516 are respectively fixedly connected on the end surfaces of the first side wall plate 512 and the sliding plates 515 far away from the workbench 2, the top parts of the tensioning blocks 516 are higher than the upper surface of the second block body 34, and when the sliding plates 515 are tightly attached to the side opposite to the first side wall plate 512, the two tensioning blocks 516 can extend into the special-shaped holes 14 of the magnetic signal wheel 1.

Referring to fig. 7, the two guide rods 514 are respectively sleeved with a first spring 517, the sliding plate 515 is provided with an accommodating cavity corresponding to the first spring 517, one end of the first spring 517 extends into the accommodating cavity to abut against the sliding plate 515, and the other end of the first spring 517 abuts against the first side wall plate 512, so as to play a role of tensioning, when the first spring 517 is in a natural state, the maximum distance between the two tightening blocks 516 is greater than the maximum diameter of the special-shaped hole 14 of the magnetic signal wheel 1.

Referring to fig. 7 and 8, a side of the main wall plate 511 facing the slide plate 515 is provided with a moving plate 519 slidably mounted on the main wall plate 511 via a linear guide 518, the linear guide 518 being arranged in the axial direction of the support shaft 32. A bottom boss 520 is fixedly connected between the first side wall plate 512 and the second side wall plate 513 and at an end far away from the tension block 516, and is mainly used for limiting and supporting the moving plate 519. A convex block 521 which penetrates through the bottom boss 520 in a sliding mode is fixedly connected to one end, far away from the tensioning block 516, of the moving plate 519, a pulley 522 is mounted on one side, facing the sliding plate 515, of the moving plate 519, the pulley 522 extends into the sliding plate 515, a notch 523 is formed in the position, corresponding to the position, where the pulley 522 extends, of the sliding plate 515, a guide wall 524 which is in constant contact with the peripheral surface of the pulley 522 is formed in the position, facing the second side wall plate 513, of the notch 523, the guide wall 524 is obliquely arranged from the convex block 521 to the tensioning block 516 and from the first side wall plate 512 to the second side wall plate 513, and when the moving plate 519 moves upwards along the linear guide rail 518, the pulley 522 drives the sliding plate 515 to move along the guide rod 514 towards the first side wall plate 512 through the guide wall 524.

First side wall board 512 is towards the movable plate 519 and the position rigid coupling that is close to tensioning block 516 has a top boss 525, top boss 525 parallels with end boss 520, movable plate 519 is towards first side wall board 512 one side and the position rigid coupling that is close to lug 521 has load board 526, load board 526 is located top boss 525 under, be connected with the second spring 527 that is used for making movable plate 519 reset between top boss 525 and the load board 526, according to actual need, can install the bolt that stretches into in the second spring 527 on top boss 525 and load board 526 for lead to second spring 527.

Referring to fig. 5, the first power source 53 includes a zero point positioning cylinder 531 vertically installed on the worktable 2, a horizontally disposed driving plate 532 is fixedly connected to a free end of a piston rod of the zero point positioning cylinder 531, and a height of the driving plate 532 is lower than that of the bump 521.

Referring to fig. 5, 7 and 8, normally, the zero point positioning cylinder 531 is in an extended/contracted state, and at this time, the second spring 527 is compressed and the two tightening blocks 516 are in close contact with each other; when the magnetic signal wheel 1 is in place, the two fastening blocks 516 extend into the special-shaped hole 14 of the magnetic signal wheel 1; during operation, the zero point positioning cylinder 531 contracts, at this time, the moving plate 519 moves downwards along the linear guide rail 518 under the action of the second spring 527, in the process, the sliding plate 515 moves towards the second side wall plate 513 along the guide rod 514, so that the two fastening blocks 516 move towards the directions away from each other, and the magnetic signal wheel 1 is tensioned, and the zero point positioning is realized.

Referring to fig. 9 and 10, the pressing mechanism 4 includes a pressing cylinder 41 located right above the loading mechanism 3 and having a piston rod vertically arranged toward the direction of the table 2, and a suspension plate 42 horizontally mounted on the piston rod of the pressing cylinder 41; the pressing cylinder 41 can be fixed through a gantry support; the side of the suspension plate 42 far away from the pressing cylinder 41 is fixedly connected with a strut 43, a pressure head 44 is sleeved outside the strut 43, the pressure head 44 and the support shaft 32 are coaxially arranged, and in a natural state, the free end of the strut 43 is higher than the bottom of the pressure head 44 and lower than the top of the pressure head 44.

A plurality of guide pins 45 connected with the suspension plate 42 and the pressure head 44 are fixedly connected between the suspension plate 42 and the pressure head 44, a buffer spring 46 with two ends respectively abutted against one side of the suspension plate 42 and the pressure head 44 is sleeved outside the guide pins 45, one end of the guide pins 45 far away from the suspension plate 42 is fixedly connected with a limiting end head 47, the diameter of the limiting end head 47 is larger than that of the guide pins 45, and one end of the guide pins 45 fixedly connected with the limiting end head 47 extends into the pressure head 44; the pressure head 44 is of an annular cylindrical structure, a guide hole extending along the axial direction of the support column 43 is formed in the pressure head 44, the limiting end head 47 slides in the guide hole, and meanwhile, an avoiding notch 48 is formed in the side wall of the pressure head 44 corresponding to the tensioning block 516.

Referring to fig. 5 and 9, when the magnetic signal wheel 1 is placed on the supporting block, the pressing cylinder 41 is started, so that the suspension plate 42 drives the pressing head 44 to move towards the loading mechanism 3; when the pressure head 44 contacts the magnetic signal wheel 1, the buffer spring 46 is gradually compressed until the support column 43 abuts against the support shaft 32, and in the process, the magnetic signal wheel 1 which is not laid flat is pressed in place under the action of external force; after the operation is completed, the pressing cylinder 41 drives the pressing head 44 to reset through the suspension plate 42.

Referring to fig. 11 and 12, the detecting device further includes a clamping mechanism 8, which is used in cooperation with the zero point positioning mechanism 5 for firmly fixing the magnetic signal wheel 1.

Referring to fig. 12 and 13, a ring-shaped and horizontally disposed shaft plate 37 is fixed to an outer wall of the support shaft 32; the clamping mechanism 8 includes a clamping sleeve 81 slidably sleeved on the rod body of the support shaft 32 above the shaft plate 37, a counterweight ring 82 formed at one end of the clamping sleeve 81 close to the shaft plate 37 and extending along the radial direction of the support shaft 32, a spacing ring 83 located right below the shaft plate 37, a plurality of connecting rods 84 passing through the shaft plate 37 and having two ends respectively connected with the counterweight ring 82 and the spacing ring 83, a tension spring 85 sleeved on the connecting rods 84 and having two ends respectively abutting against the shaft plate 37 and the spacing ring 83, and a second power source 86 installed on the workbench 2 and located at one side of the support shaft 32.

Referring to fig. 12 and 14, the clamping sleeve 81 is cylindrical, the inner wall of the clamping sleeve is attached to the outer wall of the supporting shaft 32, four U-shaped notches 811 are axially formed in the clamping sleeve 81 at a position far away from the counterweight ring 82, the four U-shaped notches 811 are circumferentially and equidistantly distributed, clamping plates 87 are formed between adjacent U-shaped notches 811, the clamping plates 87 correspond to the strip-shaped bodies 322 one by one, and a second conical surface 88 for matching with the first conical surface 323 is formed on each clamping plate 87 at a position corresponding to the first conical surface 323 on the strip-shaped body 322; the position of the supporting shaft 32 above the shaft plate 37 is symmetrically and fixedly connected with a limiting pin shaft 38, the limiting pin shaft 38 extends along the radial direction of the supporting shaft 32 and penetrates through the clamping sleeve 81, a limiting groove 89 is formed in the position, corresponding to the position where the limiting pin shaft 38 penetrates, of the clamping sleeve 81, the limiting groove 89 extends along the axial direction of the supporting shaft 32, and the limiting pin shaft 38 is in sliding fit with the limiting groove 89 and used for limiting the axial displacement of the clamping sleeve 81.

The second power source 86 includes a small cylinder 861 vertically arranged on the workbench 2, a piston rod of the small cylinder 861 is arranged in a direction away from the workbench 2, a U-shaped bracket 862 is fixedly connected to the piston rod of the small cylinder 861, a swinging block 863 extending in the direction of the support shaft 32 is arranged on the U-shaped bracket 862, the swinging block 863 is connected to two side walls of the U-shaped bracket 862 through a first bolt 864, a sliding groove 865 extending in the length direction of the swinging block 863 is formed in a position, corresponding to the first bolt 864, of the two side walls of the U-shaped bracket 862, and the swinging block 863 can be matched with the sliding groove 865 through the first bolt 864 to realize rotation and sliding. Swing piece 863 has two swing arms 866 that extend to counterweight ring 82 below towards the one side symmetry rigid coupling of back shaft 32, swing arm 866 is L shape, be the U-shaped structure between two swing arms 866 and the swing piece 863, keep away from swing piece 863 one end and have jacking head 867 towards one side rigid coupling of counterweight ring 82 at swing arm 866, the rigid coupling has bracing piece 868 respectively on the outer wall that take seat insert bearing 31 to correspond two swing arms 866 outsides, bracing piece 868 is along the axial extension of back shaft 32, two swing arms 866 articulate on two bracing pieces 868 through second bolt 869 respectively.

Referring to fig. 12 and 13, normally, the small cylinder 861 is in a contracted state, the swing block 863 moves downward, the swing arm 866 jacks up the counterweight ring 82 from the shaft plate 37 through the jacking head 867 by using the second bolt 869 as a fulcrum, so that the first conical surface 323 and the second conical surface 88 are completely fitted and attached, and the tension spring 85 is compressed; during operation, the small air cylinder 861 is started, the piston rod drives the swing block 863 to gradually move upwards, the swing arm 866 gradually moves downwards by taking the second bolt 869 as a fulcrum, the jacking head 867 is separated from the counterweight ring 82, at the moment, the clamping sleeve 81 abuts against the shaft plate 37 under the action of the restoring force of the tension spring 85 and the gravity of the counterweight ring 82, and in the process, the clamping plate 87 is deformed under the influence of the first conical surface 323 and the second conical surface 88, namely, the clamping plate 87 gradually expands outwards, so that the inner wall of the central hole 12 of the magnetic signal wheel 1 is clamped, and the magnetic signal wheel 1 is fixed.

Referring to fig. 11, the magnetic detection mechanism 6 includes a movable frame 61 installed at one side of the loading mechanism 3, and a magnetic sensor 62 installed on the movable frame 61, and the movable frame 61 is adjustable up and down, left and right as necessary; when the magnetic signal wheel 1 is in place, the detection head of the magnetic sensor 62 faces the circumferential surface of the magnetic signal wheel 1.

Referring to fig. 11 and 15, the driving mechanism 7 includes a motor 71 fixed on the work table 2, an output shaft of the motor 71 passes through the work table 2 and is located below the work table 2, a supporting shaft 32 is located on a rod body below the work table 2, and belt pulleys 72 are mounted on the output shaft of the motor 71, a tensioned belt 73 is wound between the two belt pulleys 72, and when the motor 71 is started, power is transmitted to the supporting shaft 32 through the belt 73 and the belt pulleys 72, so that the supporting shaft 32 drives the magnetic signal wheel 1 to rotate, so that the magnetic sensor 62 can detect the power.

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

firstly, placing a magnetic signal wheel 1 to be magnetized on a supporting block, and detecting whether a part exists or not through a photoelectric sensor 35;

secondly, starting the pressing cylinder 41 to enable the suspension plate 42 to drive the pressure head 44 to press the unflattened magnetic signal wheel 1 in place;

thirdly, the zero-point positioning cylinder 531 contracts, the moving plate 519 moves downwards along the linear guide rail 518 under the action of the second spring 527, and the sliding plate 515 moves towards the second side wall plate 513 along the guide rod 514, so that the two fastening blocks 516 move towards the directions away from each other, and the zero-point positioning is carried out on the magnetic signal wheel 1;

fourthly, the small air cylinder 861 extends and retracts, the clamping sleeve 81 moves towards the shaft plate 37 under the action of the restoring force of the tension spring 85 and the gravity of the counterweight ring 82, and in the process, the clamping plate 87 gradually expands outwards and clamps and fixes the magnetic signal wheel 1;

the fifth step: the motor 71 is started, so that the support shaft 32 drives the magnetic signal wheel 1 to rotate, and the detection is carried out by the magnetic sensor 62;

and a sixth step: after the test is finished, the motor 71 returns to the initial position, the small air cylinder 861 contracts and resets, and the zero positioning air cylinder 531 stretches and retracts and resets.

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 detection device is used in processing of magnetic signal wheel which characterized in that: the magnetic signal wheel device comprises a horizontal workbench (2), an object carrying mechanism (3) arranged on the workbench (2) for the magnetic signal wheel (1) to be placed, a pressing mechanism (4) arranged right above the object carrying mechanism (3), a zero point positioning mechanism (5) and a magnetic detection mechanism (6) which are arranged on the workbench (2) and are respectively arranged on two opposite sides of the object carrying mechanism (3), and a driving mechanism (7) arranged on the workbench (2) for driving the magnetic signal wheel (1) to rotate.

2. The detecting device for machining a magnetic signal wheel according to claim 1, characterized in that: the carrying mechanism (3) comprises a supporting shaft (32) which is vertically arranged on the workbench (2) in a penetrating way and is rotationally connected with the workbench (2), and at least two supporting blocks which are symmetrically arranged on the supporting shaft (32) and are used for placing the magnetic signal wheel (1).

3. The detecting device for machining a magnetic signal wheel according to claim 2, characterized in that: the photoelectric sensor (35) fixed through the vertical rod (36) is arranged on the workbench (2) on one side of the supporting shaft (32), and the photoelectric sensor (35) is opposite to the supporting block.

4. The detecting device for machining a magnetic signal wheel according to claim 2, characterized in that: the pressing mechanism (4) comprises a pressing cylinder (41) which is positioned right above the loading mechanism (3) and is vertically arranged with a piston rod towards the direction of the workbench (2), a suspension plate (42) which is arranged on the piston rod of the pressing cylinder (41) and is horizontally arranged, a pressure head (44) which is positioned right below the suspension plate (42) and is coaxially arranged with the supporting shaft (32), and a plurality of guide pins (45) which are connected between the suspension plate (42) and the pressure head (44).

5. The detecting device for machining a magnetic signal wheel according to claim 4, characterized in that: one end, far away from the suspension plate (42), of the guide pin (45) is fixedly connected with a limiting end head (47), the diameter of the limiting end head (47) is larger than that of the guide pin (45), one end, fixedly connected with the limiting end head (47), of the guide pin (45) extends into the pressure head (44), and a guide hole for the limiting end head (47) to slide is formed in the position, corresponding to the position, into which the limiting end head (47) extends, of the pressure head (44);

the guide pin (45) is sleeved with a buffer spring (46) of which two ends are respectively abutted with the opposite sides of the suspension plate (42) and the pressure head (44).

6. The detecting device for machining a magnetic signal wheel according to claim 4, characterized in that: and one side of the suspension plate (42) far away from the pressing cylinder (41) is fixedly connected with a strut (43) which is coaxially arranged with the pressure head (44), and the free end of the strut (43) is higher than the bottom of the pressure head (44).

7. The detecting device for machining a magnetic signal wheel according to claim 1, characterized in that: zero point positioning mechanism (5) are including fixed mounting tensioning unit (51) and balancing piece (52) of two supporting blocks one side of the back of the body mutually to and install first power supply (53) on workstation (2) of carrying thing mechanism (3) one side and being located tensioning unit (51) below.

8. The detecting device for machining a magnetic signal wheel according to claim 7, characterized in that: the tensioning unit (51) comprises a main wall plate (511), a first side wall plate (512) and a second side wall plate (513) which are integrally formed on two sides of the main wall plate (511) and are in a U-shaped structure with the main wall plate (511), two guide rods (514) which are fixedly connected between the first side wall plate (512) and the second side wall plate (513) and are axially vertical to the supporting shaft (32), a sliding plate (515) which slides on the two guide rods (514), a tensioning block (516) which is fixedly connected on the end surfaces of the first side wall plate (512) and the sliding plate (515) far away from one side of the workbench (2) and is higher than the surface of the supporting block, a first spring (517) which is sleeved on the guide rods (514) and two ends of which are respectively abutted against the sliding plate (515) and the first side wall plate (512), and a moving plate (519) which is slidably installed on one side of the main wall plate (511) facing the sliding plate (515) through a linear guide rail (518) axially arranged along the supporting shaft (32), A bottom boss (520) which is formed between the first side wall plate (512) and the second side wall plate (513) and is far away from one end of the tension block (516), a lug (521) which is fixedly connected to one end of the moving plate (519) far away from the tension block (516) and slides to pass through the bottom boss (520), and a pulley (522) which is arranged on one side of the moving plate (519) facing the sliding plate (515) and extends into the sliding plate (515);

a notch (523) is processed on the sliding plate (515) corresponding to the position where the pulley (522) extends, a guide wall (524) which is always contacted with the peripheral surface of the pulley (522) is formed at the position, which is opposite to the second side wall plate (513), in the notch (523), and the guide wall (524) is obliquely arranged from the convex block (521) to the tensioning block (516) and from the first side wall plate (512) to the second side wall plate (513);

the first side wall plate (512) is fixed on one side of the supporting block, which is far away from the supporting shaft (32), the position, facing the moving plate (519), of the first side wall plate (512) and close to the tensioning block (516) is fixedly connected with a top boss (525), the position, facing one side of the first side wall plate (512), of the moving plate (519) and close to the boss (521) is fixedly connected with a bearing plate (526) which is positioned right below the top boss (525), and a second spring (527) is connected between the top boss (525) and the bearing plate (526);

the first power source (53) comprises a zero point positioning cylinder (531) which is arranged on the workbench (2) and is vertically arranged, and a transmission plate (532) with the height lower than the bump (521) is fixedly connected to the free end of a piston rod of the zero point positioning cylinder (531).

9. The detecting device for machining a magnetic signal wheel according to claim 1, characterized in that: the magnetic detection mechanism (6) comprises a movable frame (61) arranged on one side of the loading mechanism (3) and a magnetic sensor (62) fixedly arranged on the movable frame (61) and arranged towards one side of the loading mechanism (3).

10. The detecting device for machining a magnetic signal wheel according to claim 1, characterized in that: the driving mechanism (7) comprises a motor (71) which is fixed on the workbench (2) and an output shaft of which passes through the workbench (2) to the lower part, belt wheels (72) which are respectively arranged on a rod body of which the supporting shaft (32) is positioned below the workbench (2) and on the output shaft of the motor (71), and a tensioned belt (73) which is wound between the two belt wheels (72).

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