CN118670608B - Steel wheel balance detection equipment and detection method - Google Patents

Abstract

The invention relates to the technical field of wheel balance detection, and discloses steel wheel balance detection equipment and a detection method, wherein the steel wheel balance detection equipment comprises a detection table, an arch frame is fixedly arranged at the top of the detection table, a rotary driving piece is arranged at the left half part of the detection table, the top of the rotary driving piece is in threaded connection with a clamping fixing piece, the top of the arch frame is in sliding connection with a sliding seat, a track drawing assembly is fixedly installed at the bottom of the sliding seat, and magnetic powder is paved on the bottom wall of the track drawing assembly. The first motor drives the first rotating shaft to rotate, so that the steel wheel and the clamping fixing piece are driven to rotate synchronously, when the first magnet and the second magnet rotate by taking the first rotating shaft as an axis, the magnetic powder at the top of the acrylic plate is driven to move, the motion trail of the first magnet and the second magnet is depicted, and the industrial camera shoots the motion trail from the upper part, so that the aim of drawing the rotation trail with the hub in a non-contact way in the rotation process of the hub is achieved.

Description

Steel wheel balance detection device and detection method

Technical Field

The invention relates to the technical field of wheel balance detection, and in particular to a steel wheel balance detection device and a detection method.

Background Art

After the wheel is processed, it is difficult to ensure that the wheel is a perfect circle without defects, so the dynamic balance of the wheel needs to be tested before leaving the factory. In addition, after the car has been running for a period of time, when the wheel is impacted by uneven ground or other reasons, the dynamic balance of the wheel also needs to be tested for driving safety.

The Chinese patent with application date: 2023-05-11, announcement number: CN116242535B discloses a wheel hub balance detection device, including a base, a balancing platform, a detection column, a hub edge wheel type positioning mechanism and a trajectory flow deviation detection mechanism, wherein the balancing platform is arranged on the upper wall of the base, the detection column is arranged on the upper wall of the balancing platform, the hub edge wheel type positioning mechanism is arranged on the side wall of the detection column, and the trajectory flow deviation detection mechanism is arranged at the end of the hub edge wheel type positioning mechanism away from the detection column, and the hub edge wheel type positioning mechanism includes a guide drive mechanism and an edge clamping mechanism, and the guide drive mechanism is arranged on the side wall of the detection column. Specifically, it refers to a wheel hub balance detection device; the invention provides a wheel hub balance detection device that can synchronously record the running trajectory of the wheel hub, can display the dynamic balance of microscopic changes, and is convenient for operators to adjust the wheel hub according to the motion trajectory.

In this technical solution, the wheel hub drives the color plate to rotate through the laminating plate, and the color plate rotates and contacts the absorbent cotton and the track groove. The pigment inside the absorbent cotton adhered to the surface of the color plate is painted on the inner wall of the track groove during the rotation of the wheel hub, thereby visually detecting the dynamic balance of the wheel hub. However, when the color plate rubs against the thinner surface and the track groove, or even when the wheel hub vibrates due to dynamic imbalance, causing the color plate to collide with the track groove, it will become an external factor that affects the rotation of the wheel hub and affects the accuracy of the dynamic balance detection of the wheel hub, so further improvements can be made.

Summary of the invention

In view of the deficiencies in the prior art, the present invention provides a steel wheel balance detection device and detection method, which has the advantages of non-contact drawing of the rotation trajectory of the wheel hub during rotation, and solves the problem that the component for drawing the rotation trajectory of the wheel hub affects the normal rotation of the wheel hub.

In order to achieve the purpose of drawing a rotation trajectory with the wheel hub in a non-contact manner during the rotation of the wheel hub, the present invention provides the following technical solutions: a steel wheel balancing detection device, comprising a detection table, an arch frame is fixedly installed on the top of the detection table, a rotating driving member is arranged on the left half of the detection table, a clamping fixing member is threadedly connected to the top of the rotating driving member, the steel wheel is clamped between the rotating driving member and the clamping fixing member, a sliding seat is slidably connected to the top of the arch frame, a transverse driving member is arranged on the top of the arch frame, the transverse driving member is used to drive the sliding seat to move laterally, a trajectory drawing component is fixedly installed on the bottom of the sliding seat, magnetic powder is laid on the bottom wall of the trajectory drawing component, and a paving component is arranged on the right half of the detection table.

Preferably, the rotating driving member includes a motor 1 fixedly mounted on the bottom wall of the left half of the arch frame, a rotating shaft 1 is fixedly mounted on the top output end of the motor 1, the rotating shaft 1 penetrates and is rotatably connected to the detection table, a lower clamping plate is fixedly mounted on the circumferential surface of the rotating shaft 1 near its top, a threaded hole is provided on the top of the rotating shaft 1, the rotating shaft 1 is plugged into the center of the steel wheel, and the lower clamping plate is attached to the bottom of the steel wheel; the clamping fixture includes an upper clamping plate attached to the top of the steel wheel, A lower recess is provided at the center of the upper clamping disk, a turntable is rotatably connected inside the lower recess, a threaded rod 1 is inserted between the lower recess and the center of the turntable, the threaded rod 1 is threadedly connected in the threaded hole, a screw disk is fixedly installed on the top of the threaded rod 1, the screw disk is attached to the top of the turntable, a plug-in column is fixedly installed in an array at the bottom of the screw disk, an arc groove is penetrated by the array at the top of the turntable, the arc center of the arc groove coincides with the center of the turntable, the plug-in column corresponds to the arc groove one by one, and the plug-in column is inserted in the arc groove.

Preferably, a slide groove is provided through the array on the top of the upper clamping disk, and the slide groove is arranged along the radial direction of the upper clamping disk, and a slider is slidably connected through the slide groove, and connecting plates are fixedly installed on both sides of the upper part of the slider on the upper clamping disk, and the connecting plate is Y-shaped when viewed from above, and a slide column is fixedly installed on one end of the connecting plate close to the center of the upper clamping disk; an inclined groove is provided through the array on the top of the turntable, and the inclined grooves correspond to the slide columns one by one, the slide columns are slidably connected in the inclined grooves, and the slider fits against the outer edge of the top of the steel wheel; a horizontal bar is fixedly installed on the top of the turning disk, and the horizontal bar is arranged along the diameter direction of the turning disk, and magnetic block 1 is embedded in the left half and the right half of the top of the horizontal bar, and magnetic block 2 is embedded in the top of the slider.

Preferably, the arch frame is composed of a mounting frame and four supporting legs, the mounting frame is square-shaped, and the supporting legs are fixedly mounted at the four corners of the bottom of the mounting frame; the transverse driving component includes two sets of slide rails fixedly mounted on the front inner wall and the rear inner wall of the mounting frame, the front and rear sides of the slide seat are fixedly mounted with sliding sleeves, the slide seat is slidably connected to the slide rails through the sliding sleeves, a second motor is fixedly mounted on the right side of the mounting frame, a second threaded rod is fixedly mounted on the left output end of the second motor, the second threaded rod is parallel to the slide rail, a threaded ring is fixedly mounted on the top of the slide seat, and the threaded ring is threadedly connected to the second threaded rod.

Preferably, an arched plate is arranged directly below the slide seat, a fixed plate is fixedly installed on the back of the arched plate, four groups of cantilevers are fixedly installed on the bottom of the slide seat, the four groups of cantilevers are distributed in a matrix, the cantilever is L-shaped, and four groups of sliding rods are fixedly installed on the top of the arched plate, the sliding rods correspond to the cantilevers one-to-one, and the sliding rods are slidably connected to the horizontal part of the cantilever; the transverse driving member also includes a vertical plate fixedly installed on the top rear side of the detection platform, two groups of guide grooves are opened on the front side of the vertical plate, the two groups of guide grooves are distributed up and down, the middle part of the guide groove is horizontal, and the two ends of the guide groove are inclined downward; two groups of rollers are rotatably connected to the back of the fixed plate, the two groups of rollers are distributed up and down, the rollers correspond to the guide grooves one-to-one, and the rollers are slidably connected in the guide grooves.

Preferably, the trajectory drawing component includes a sealing cover fixedly mounted on the bottom of the arch plate, an annular light strip is fixedly mounted on the inner wall of the bottom end of the sealing cover, an acrylic plate is fixedly mounted on the inner wall of the annular light strip, an industrial camera is fixedly mounted on the top of the sealing cover, the camera head of the industrial camera passes through the interior of the sealing cover, two groups of cylinders are fixedly mounted on the top of the sealing cover, the output end of the cylinder passes through the top shell of the sealing cover, and a transparent groove is fixedly mounted on the output end of the cylinder.

Preferably, the paving assembly comprises an iron disc, a sleeve 1 is fixedly mounted at the bottom center of the iron disc, a rotating shaft 2 is inserted inside the sleeve 1, two sets of convex strips are fixedly mounted on the circumferential surface of the rotating shaft 2, and strip grooves are provided on the inner wall of the sleeve 1 corresponding to the convex strips, and the convex strips slide in adaptation with the strip grooves; a sprocket 1 is fixedly mounted on the circumferential surface of the bottom end of the rotating shaft 2, a sprocket 2 is fixedly mounted on the circumferential surface of the rotating shaft 1, and the sprocket 1 and the sprocket 2 are connected by a chain belt; a sleeve 2 is sleeved on the outer side of the sleeve 1, and the sleeve 2 is rotatably connected to the top of the detection table A limiting groove is formed through the circumferential surface of the second sleeve, a cross bar is fixedly installed on the circumferential surface of the bottom end of the first sleeve, and the cross bar is slidably connected in the limiting groove. A plurality of support columns are fixedly installed on the top of the right half of the testing platform, and the plurality of support columns are evenly distributed circumferentially with the second sleeve as the center, an annular guide rail is fixedly installed on the top of the support column, and the cross bar fits on the top of the annular guide rail; the cross bar consists of a left arc portion, a right arc portion and two inclined arc portions in the middle, the height of the left arc portion is lower than the height of the right arc portion, and the inclined arc portion is connected between the ends of the left arc portion and the right arc portion.

Preferably, a connecting ring is fixedly installed at the bottom of the iron disc, the cross-section of the connecting ring is L-shaped, elastic steel sheets are fixed in an array on the top edge of the connecting ring, and bosses are fixed in an array on the circumferential surface of the bottom end of the sealing cover, and the elastic steel sheet is inserted between two adjacent bosses.

Preferably, the detection method of the steel wheel balance detection equipment comprises the following specific steps:

S1, drive the second threaded rod to rotate through the second motor, cooperate with the threaded connection between the second threaded rod and the threaded collar, drive the slide to move rightward along the slide rail, and the slide drives the arch plate and the track drawing component to move rightward synchronously, so that the track drawing component moves away from above the clamping fixture, and in the process of the arch plate moving to the right, the roller slides in the guide groove, so that the track drawing component first rises and then falls in the process of moving to the right, until the track drawing component is directly above the iron disc;

S2, drive the rotating shaft 1 to rotate through the motor 1, drive the sprocket 2 to rotate, cooperate with the rotation of the sprocket 1, the sprocket 2 and the chain belt to drive the rotating shaft 2 to rotate, and then drive the sleeve 1 and the iron disc to rotate through the convex strip, and during the rotation of the sleeve 1, the cross bar slides on the top of the annular guide rail and slides inside the limit groove, when the cross bar slides along the inclined arc portion of the annular guide rail, the sleeve 1 and the iron disc rotate and move upward, when the cross bar slides to the right arc portion of the annular guide rail, the iron disc fits on the bottom of the acrylic plate, the upper surface of the acrylic plate serves as the bottom wall of the track drawing component, and the magnetic powder on its surface generates attraction with the iron disc;

S3, the output end of the cylinder is extended, driving the transparent groove to move upward and fit on the magnetic powder on the top of the acrylic plate, and then the iron disc and the sleeve continue to rotate, and the cross bar fits on the right arc part of the annular guide rail and slides, so that the magnetic powder on the top of the acrylic plate moves with the rotation of the iron disc, and at the same time, the acrylic plate blocks the stacked magnetic powder, so that the magnetic powder is flattened on the top of the acrylic plate;

S4. When the iron disc moves up and fits on the bottom of the acrylic plate, the elastic steel sheet is inserted between two adjacent bosses. Then, when the iron disc rotates, the elastic steel sheet is driven to move. When the elastic steel sheet is blocked by the boss, the elastic steel sheet is bent and deformed. When the elastic steel sheet is deformed and passes over the boss, the elastic steel sheet is reset under its own elastic action and hits the surface of the next boss, knocking and vibrating the sealing cover, further flattening the magnetic powder on the top of the acrylic plate.

S5, after the magnetic powder is flattened, when the crossbar slides to the left arc of the annular guide rail, the motor stops working;

S6. Afterwards, place the steel wheel to be tested on the top of the lower clamping plate, and insert the rotating shaft 1 into the center of the steel wheel, then place the upper clamping plate on the top of the steel wheel, hold the horizontal bar and twist the threaded rod 1, so that the threaded rod 1 is screwed into the threaded hole, so that the screwing plate is rotated and lowered, and as the screwing plate moves downward, when the plug column is inserted into the arc groove, it moves along the arc groove until the plug column fits on one end of the arc groove, and then, the turntable is pushed by the plug column and rotates synchronously with the screwing plate, and the turntable is located at the side wall of the inclined groove to squeeze the sliding column and pull the connecting plate inward, so that the slider moves inward along the slide groove and fits on the edge of the steel wheel;

S7. After that, the second motor drives the second threaded rod to rotate, so that the slide moves to the left until the trajectory drawing component moves to the top of the upper clamping plate, and then the first motor drives the first shaft to rotate, thereby driving the steel wheel and the clamping fixture to rotate synchronously. When the first and second magnets rotate with the first shaft as the axis, the first and second magnets attract the magnetic powder on the top of the acrylic plate, drive the magnetic powder on the top of the acrylic plate to move, and draw the movement trajectory of the first and second magnets. At the same time, the annular light strip fills the acrylic plate with light, and the industrial camera shoots the movement trajectory from the top.

Compared with the prior art, the present invention provides a steel wheel balance detection device and detection method, which have the following beneficial effects:

1. The steel wheel balance detection equipment and detection method drives the second threaded rod to rotate through the second motor to move the slide to the left until the trajectory drawing component moves to the top of the upper clamping plate, and then drives the first shaft to rotate through the first motor, thereby driving the steel wheel and the clamping fixture to rotate synchronously. When the first and second magnetic blocks rotate with the first shaft as the axis, the first and second magnetic blocks attract the magnetic powder on the top of the acrylic plate, drive the magnetic powder on the top of the acrylic plate to move, and draw the movement trajectory of the first and second magnetic blocks. At the same time, the annular light strip fills the acrylic plate with light, and the industrial camera shoots the movement trajectory from the top, so as to achieve the purpose of drawing the rotation trajectory with the wheel hub in a non-contact manner during the rotation of the wheel hub;

2. The steel wheel balance detection equipment and detection method drive the second threaded rod to rotate through the second motor, cooperate with the threaded connection between the second threaded rod and the threaded collar, drive the slide to move rightward along the slide rail, so that the track drawing component first rises and then falls in the process of moving to the right, until the track drawing component is directly above the iron disc, and drive the first shaft to rotate through the first motor to drive the second sprocket to rotate, cooperate with the rotation of the first sprocket, the second sprocket and the chain belt to drive the second shaft to rotate, and then drive the first sleeve and the iron disc to rotate through the convex strip, and during the rotation of the first sleeve, the cross bar slides on the top of the annular guide rail and slides inside the limit groove, and when the cross bar slides along the inclined arc of the annular guide rail, the first sleeve and the edge of the iron disc are aligned. The rotating side moves upward, and when the cross bar slides to the right arc portion of the annular guide rail, the iron disc fits on the bottom of the acrylic plate, and the upper surface of the acrylic plate serves as the bottom wall of the track drawing component. The magnetic powder on its surface generates attraction with the iron disc; the output end of the cylinder is then extended to drive the transparent groove to move upward and fit on the magnetic powder on the top of the acrylic plate, and then the iron disc and the sleeve continue to rotate, and the cross bar fits on the right arc portion of the annular guide rail and slides, so that the magnetic powder on the top of the acrylic plate moves with the rotation of the iron disc, and at the same time, the acrylic plate blocks the stacked magnetic powder, so that the magnetic powder is flattened on the top of the acrylic plate; thereby achieving the purpose of automatically flattening the magnetic powder after one detection.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a steel wheel balance detection device proposed by the present invention;

FIG2 is a schematic diagram of a three-dimensional cross-sectional structure of a steel wheel balance detection device provided by the present invention at a detection platform;

FIG3 is a schematic diagram of a three-dimensional assembly structure of a rotating driving member and a clamping fixing member of a steel wheel balance detection device proposed by the present invention;

FIG4 is a schematic diagram of the three-dimensional structure of a turntable of a steel wheel balance detection device proposed by the present invention;

FIG5 is a schematic diagram of a three-dimensional structure of a steel wheel balance detection device according to the present invention, as viewed from a bottom perspective, as shown in FIG4 ;

FIG6 is a schematic diagram of the three-dimensional structure of a transverse driving component of a steel wheel balance detection device proposed by the present invention;

FIG7 is a schematic diagram of the three-dimensional structure of a slide seat of a steel wheel balance detection device proposed by the present invention;

FIG8 is a schematic diagram of the three-dimensional structure of a trajectory drawing component of a steel wheel balance detection device proposed by the present invention;

FIG9 is a schematic diagram of a three-dimensional cross-sectional structure of a track drawing component of a steel wheel balance detection device proposed by the present invention;

FIG10 is a schematic diagram of the three-dimensional structure of a flattening assembly of a steel wheel balancing detection device provided by the present invention;

FIG11 is a schematic diagram of a three-dimensional assembly structure of a sleeve 1 and a sleeve 2 of a steel wheel balance detection device proposed by the present invention;

FIG. 12 is a schematic diagram of the boss and elastic steel sheet structure of a steel wheel balance detection device proposed by the present invention.

In the figure: 100, testing table; 200, arch frame; 300, rotating driving member; 400, clamping fixing member; 500, sliding seat; 600, lateral driving member; 700, trajectory drawing component; 800, paving component;

Motor 1; 302, rotating shaft 1; 303, lower clamping plate; 304, threaded hole;

Upper clamping plate; 402, lower concave portion; 403, turntable; 404, threaded rod 1; 405, twisting plate; 406, plug post; 407, arc groove; 408, slide groove; 409, slider; 410, connecting plate; 411, slide post; 412, inclined groove; 413, horizontal bar; 414, magnetic block 1; 415, magnetic block 2;

Arched plate; 502, fixed plate; 503, cantilever; 504, slide rod;

Slide rail; 602, sliding sleeve; 603, motor 2; 604, threaded rod 2; 605, threaded collar; 606, vertical plate; 607, guide groove; 608, roller;

Sealing cover; 702, annular light strip; 703, acrylic plate; 704, industrial camera; 705, cylinder; 706, transparent groove; 707, boss;

Iron disc; 802, sleeve one; 803, rotating shaft two; 804, convex strip; 805, sprocket one; 806, sprocket two; 807, chain belt; 808, sleeve two; 809, limiting groove; 810, cross bar; 811, supporting column; 812, annular guide rail; 813, connecting ring; 814, elastic steel sheet.

DETAILED DESCRIPTION

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

Please refer to Figures 1-2, a steel wheel balance detection device includes a detection platform 100, an arch frame 200 is fixedly installed on the top of the detection platform 100, the arch frame 200 is composed of a mounting frame and four support legs, the mounting frame is in a square frame shape, and the support legs are fixedly installed at the four corners of the bottom of the mounting frame. A rotating driving member 300 is arranged on the left half of the detection platform 100, a clamping fixture 400 is threadedly connected to the top of the rotating driving member 300, and the steel wheel is clamped between the rotating driving member 300 and the clamping fixture 400, a sliding seat 500 is slidably connected to the top of the arch frame 200, a transverse driving member 600 is arranged on the top of the arch frame 200, and the transverse driving member 600 is used to drive the sliding seat 500 to move laterally, a track drawing component 700 is fixedly installed on the bottom of the sliding seat 500, and magnetic powder is laid on the bottom wall of the track drawing component 700, and a paving component 800 is arranged on the right half of the detection platform 100.

Please refer to Fig. 3, the rotating driving member 300 includes a motor 301 fixedly mounted on the bottom wall of the left half of the arch frame 200, and a rotating shaft 302 is fixedly mounted on the top output end of the motor 301. The rotating shaft 302 penetrates and is rotatably connected to the testing platform 100. In practice, a bearing can be installed on the testing platform 100, and the rotating shaft 302 passes through the middle of the bearing, so that the rotating shaft 302 is rotatably connected to the testing platform 100. A lower clamping plate 303 is fixedly mounted on the circumferential surface of the rotating shaft 302 near its top, and a threaded hole 304 is opened on the top of the rotating shaft 302. The rotating shaft 302 is plugged into the center of the steel wheel, and the lower clamping plate 303 fits the bottom of the steel wheel.

Please refer to Figures 3 to 5. The clamping fixture 400 includes an upper clamping plate 401 attached to the top of the steel wheel. The steel wheel is clamped and fixed by the cooperation of the lower clamping plate 303 and the upper clamping plate 401, so that the steel wheel rotates along the rotating shaft 1 302. A lower concave portion 402 is provided at the center of the upper clamping plate 401. The lower concave portion 402 is a circular cover with an opening upward. A rotating disk 403 is rotatably connected inside the lower concave portion 402. Circular holes are opened at the centers of the rotating disk 403 and the lower concave portion 402. A threaded rod 1 404 is inserted at the centers of the lower concave portion 402 and the rotating disk 403.

The threaded rod 404 is threadedly connected in the threaded hole 304, and a screw disk 405 is fixedly installed on the top of the threaded rod 404. The screw disk 405 fits on the top of the turntable 403. The bottom array of the screw disk 405 is fixedly installed with a plug 406. The top array of the turntable 403 is penetrated by an arc groove 407. The arc center of the arc groove 407 coincides with the center of the turntable 403. The plug 406 corresponds to the arc groove 407 one by one, and the plug 406 is inserted into the arc groove 407. The steel wheel is placed on the top of the lower clamping plate 303, and the rotating shaft 302 is inserted in the center of the steel wheel. Then place the upper clamping plate 401 on the top of the steel wheel, and screw the screwing plate 405 to make the threaded rod 404 threadedly connected with the threaded hole 304 until the screwing plate 405 is tightly against the top of the turntable 403, so that the lower clamping plate 303 and the upper clamping plate 401 clamp the steel wheel, thereby completing the fixation of the steel wheel.

During the process of screwing the screwing disk 405, before the pin 406 is about to be inserted into the arc groove 407, the upper clamping disk 401 can be manually pushed to rotate to adjust the position of the pin 406 inserted into the arc groove 407. After the pin 406 is inserted into the arc groove 407 and before the screwing disk 405 is not attached to the top of the rotating disk 403, when the screwing disk 405 is rotated, the pin 406 slides in the arc groove 407, and then the pin 406 moves in the arc groove 407, and drives the rotating disk 403 to rotate synchronously with the screwing disk 405. Therefore, by adjusting the position of the pin 406 inserted into the arc groove 407, the sliding distance of the pin 406 in the arc groove 407 is adjusted, and then the angle at which the pin 406 pushes the rotating disk 403 to rotate is adjusted.

A slide groove 408 is provided through the top array of the upper clamping disk 401. The slide groove 408 is arranged along the radial direction of the upper clamping disk 401. A slider 409 is slidably connected through the slide groove 408. The sliders 409 are located on both sides of the upper part of the upper clamping disk 401 and are fixedly installed with connecting plates 410. The connecting plates 410 are Y-shaped when viewed from above. A sliding column 411 is fixedly installed at one end of the connecting plates 410 near the center of the upper clamping disk 401. An inclined groove 412 is provided through the top array of the rotating disk 403. The inclined grooves 412 correspond to the sliding columns 411 one by one. The sliding columns 411 are slidably connected in the inclined grooves 412. Therefore, when the turntable 403 rotates following the plug 406, the turntable 403 squeezes the slide post 411 at the side wall of the inclined groove 412, so that the slide post 411 is pushed toward the center of the turntable 403, and cooperates with the connection of the connecting plate 410 to drive the slider 409 to move inward along the slide groove 408 until the slider 409 fits on the edge of the steel wheel. In practice, an elastic rubber pad can be bonded to the side of the slider 409 facing the steel wheel to prevent the slider 409 from losing the steel wheel. When the rubber pad fits on the edge of the steel wheel, the turntable 403 can still rotate a small angle to allow the slider 409 to continue to move inward. This ensures that when the screwing disk 405 fits on the top of the turntable 403, the slider 409 can fit tightly on the edge of the steel wheel.

A horizontal bar 413 is fixedly installed on the top of the rotating disk 405, and the horizontal bar 413 is arranged along the diameter direction of the rotating disk 405. A magnetic block 1 414 is embedded in the left and right halves of the top of the horizontal bar 413, and a magnetic block 2 415 is embedded on the top of the slider 409. When the steel wheel rotates, the magnetic block 1 414 and the magnetic block 2 415 rotate with the rotating shaft 1 302 as the axis, and the moving paths of the magnetic block 1 414 and the magnetic block 2 415 are circular. At the same time, the magnetic block 1 414 and the magnetic block 2 415 attract the magnetic powder inside the trajectory drawing component 700, drive the magnetic powder to move, and show the moving paths of the magnetic block 1 414 and the magnetic block 2 415.

Please refer to Figures 6 and 7. The transverse driving member 600 includes two sets of slide rails 601 fixedly mounted on the front inner wall and the rear inner wall of the installation frame. The front and rear sides of the slide seat 500 are fixedly mounted with slide sleeves 602. The slide seat 500 is slidably connected to the slide rails 601 through the slide sleeves 602. The right side of the installation frame is fixedly mounted with a second motor 603. The left output end of the second motor 603 is fixedly mounted with a second threaded rod 604. The second threaded rod 604 is parallel to the slide rail 601. The top of the slide seat 500 is fixedly mounted with a threaded collar 605. The threaded collar 605 is threadedly connected to the second threaded rod 604. The second motor 603 drives the second threaded rod 604 to rotate, driving the slide seat 500 to move left or right along the slide rail 601, so that the track drawing component 700 moves above the clamping fixture 400 or the track drawing component 700 moves above the paving component 800.

Please refer to Figures 6 and 7. An arch plate 501 is arranged directly below the slide 500. A fixed plate 502 is fixedly installed on the back of the arch plate 501. Four groups of cantilevers 503 are fixedly installed at the bottom of the slide 500. The four groups of cantilevers 503 are arranged in a matrix. The cantilevers 503 are L-shaped. Four groups of slide bars 504 are fixedly installed on the top of the arch plate 501. The slide bars 504 correspond to the cantilevers 503 one by one. The slide bars 504 penetrate and slide to connect to the horizontal part of the cantilevers 503. Thus, the arch plate 501 can move up and down relative to the slide 500. The track drawing assembly 700 is fixed to the bottom of the arch plate 501 by bolts, so that the track drawing assembly 700 can move up and down relative to the slide 500.

The transverse driving member 600 also includes a vertical plate 606 fixedly mounted on the top rear side of the detection platform 100. Two groups of guide grooves 607 are opened through the front side of the vertical plate 606. The two groups of guide grooves 607 are distributed up and down, the middle of the guide groove 607 is horizontal, and the two ends of the guide groove 607 are inclined downward. The back of the fixed plate 502 is rotatably connected with two groups of rollers 608. The two groups of rollers 608 are distributed up and down. The rollers 608 correspond to the guide grooves 607 one by one, and the rollers 608 are slidably connected in the guide grooves 607. Therefore, when the arch plate 501 and the track drawing component 700 follow the slide 500 to move from left to right, the track drawing component 700 is driven to rise first and then fall in the vertical direction. Avoid the track drawing component 700 from directly moving horizontally and colliding with the clamping fixture 400 or the paving component 800.

Please refer to Figures 8-9. The trajectory drawing component 700 includes a sealing cover 701 fixedly mounted at the bottom of the arch plate 501. A ring light strip 702 is fixedly mounted on the inner wall of the bottom end of the sealing cover 701. An acrylic plate 703 is fixedly mounted on the inner wall of the ring light strip 702. The acrylic plate 703 is made of transparent or translucent acrylic material. Magnetic powder is spread on the top of the acrylic plate 703. When the magnetic block 1 414 and the magnetic block 2 415 rotate with the rotating shaft 1 302 as the axis, the magnetic powder on the top of the acrylic plate 703 is attracted by the magnetic block 1 414 and the magnetic block 2 415 to move, showing the moving path of the magnetic block 1 414 and the magnetic block 2 415. An industrial camera 704 is fixedly mounted on the top of the sealing cover 701. The camera of the industrial camera 704 penetrates into the interior of the sealing cover 701, so that the pattern displayed by the magnetic powder is photographed by the industrial camera 704, and then the industrial camera 704 is connected to the computer to transmit the image to the computer. Two sets of cylinders 705 are fixedly installed on the top of the sealing cover 701. The output end of the cylinder 705 passes through the top shell of the sealing cover 701. A transparent groove 706 is fixedly installed on the output end of the cylinder 705. The transparent groove 706 is made of transparent acrylic or glass. The output end of the cylinder 705 is contracted to make the transparent groove 706 fit the bottom of the industrial camera 704 to prevent the magnetic powder from contacting the camera.

Please refer to Figures 10 to 12. The paving assembly 800 includes an iron disc 801. A sleeve 1 802 is fixedly installed at the center of the bottom of the iron disc 801. A rotating shaft 2 803 is inserted inside the sleeve 1 802. Two groups of convex strips 804 are fixedly installed on the circumferential surface of the rotating shaft 2 803. The inner wall of the sleeve 1 802 is provided with strip grooves corresponding to the convex strips 804. The convex strips 804 slide in a matching manner with the strip grooves. Therefore, when the rotating shaft 2 803 rotates, the sleeve 1 802 rotates synchronously with the rotating shaft 2 803. In addition, during the rotation of the sleeve 1 802 and the rotating shaft 2 803, the sleeve 1 802 can move up and down relative to the rotating shaft 2 803.

A sprocket 1 805 is fixedly mounted on the circumferential surface of the bottom end of the rotating shaft 2 803, and a sprocket 2 806 is fixedly mounted on the circumferential surface of the rotating shaft 1 302, and the sprocket 1 805 and the sprocket 2 806 are connected by a chain belt 807. Therefore, when the motor 1 301 drives the rotating shaft 1 302 to rotate, the transmission effect of the sprocket 1 805, the sprocket 2 806 and the chain belt 807 drives the rotating shaft 2 803 to rotate.

The outer side of the sleeve 1 802 is sleeved with a sleeve 2 808, and the sleeve 2 808 is rotatably connected to the top of the detection platform 100. The circumferential surface of the sleeve 2 808 is penetrated to open a limit groove 809, and a cross bar 810 is fixedly installed on the circumferential surface of the bottom end of the sleeve 1 802, and the cross bar 810 is slidably connected in the limit groove 809. The cross bar 810 is limited by the top wall of the limit groove 809 to prevent the sleeve 1 802 from being separated during the upward movement of the relative rotation shaft 2 803. A plurality of support columns 811 are fixedly installed on the top of the right half of the detection platform 100, and the plurality of support columns 811 are evenly distributed circumferentially with the sleeve 2 808 as the center. An annular guide rail 812 is fixedly installed on the top of the support column 811, and the cross bar 810 is attached to the top of the annular guide rail 812; the cross bar 810 is composed of a left arc portion, a right arc portion and two inclined arc portions in the middle, the height of the left arc portion is lower than the height of the right arc portion, and the inclined arc portion is connected between the ends of the left arc portion and the right arc portion. Thus, during the rotation of the sleeve 802, the cross bar 810 slides on the top of the annular guide rail 812. When the cross bar 810 is attached to the left arc portion of the annular guide rail 812, the iron disc 801 is in a lower position, which can avoid collision when the track drawing component 700 moves to the top of the iron disc 801. When the cross bar 810 is attached to the right arc portion of the annular guide rail 812, the iron disc 801 is in a higher position, and the iron disc 801 is attached to the bottom of the acrylic plate 703. When the iron disc 801 is attached to the bottom of the acrylic plate 703 and rotates, the magnetic powder on the top of the acrylic plate 703 moves under the action of attraction. Then, the output end of the cylinder 705 is extended, driving the transparent groove 706 to move downward, so that the transparent groove 706 is attached to the top of the magnetic powder, blocking the magnetic powder stacked together, thereby flattening the magnetic powder.

A connecting ring 813 is fixedly mounted at the bottom of the iron disc 801. The cross section of the connecting ring 813 is L-shaped. An elastic steel sheet 814 is fixed in an array on the top edge of the connecting ring 813. Bosses 707 are fixed in an array on the circumferential surface of the bottom end of the sealing cover 701. The elastic steel sheet 814 is inserted between two adjacent bosses 707. When the crossbar 810 is attached to the right arc portion of the annular guide rail 812, the elastic steel sheet 814 is inserted between two adjacent bosses 707. After that, the iron disc 801 continues to rotate, the cross bar 810 slides on the right arc portion of the annular guide rail 812, and the elastic steel sheet 814 performs a circular motion. When the elastic steel sheet 814 is blocked by the boss 707, the elastic steel sheet 814 bends and deforms. When the elastic steel sheet 814 is deformed and passes over the boss 707, the elastic steel sheet 814 resets under the action of its own elasticity and hits the surface of the next boss 707, knocking and vibrating the sealing cover 701, further flattening the magnetic powder on the top of the acrylic plate 703.

The detection method of the steel wheel balance detection equipment, the specific steps are as follows:

S1. The second motor 603 drives the second threaded rod 604 to rotate, and the second threaded rod 604 and the threaded collar 605 are connected by a thread, so as to drive the slide 500 to move rightward along the slide rail 601. The slide 500 drives the arch plate 501 and the track drawing component 700 to move rightward synchronously, so that the track drawing component 700 moves away from the clamping fixture 400. In the process of the arch plate 501 moving rightward, the roller 608 slides in the guide groove 607, so that the track drawing component 700 first rises and then falls in the process of moving rightward, until the track drawing component 700 is directly above the iron disc 801.

S2, the motor 301 drives the shaft 302 to rotate, driving the sprocket 806 to rotate, and the sprocket 805, the sprocket 806 and the chain belt 807 cooperate to drive the shaft 803 to rotate, and then the convex strip 804 drives the sleeve 802 and the iron disc 801 to rotate, and during the rotation of the sleeve 802, the cross bar 810 slides on the top of the annular guide rail 812 and slides inside the limit groove 809, when the cross bar 810 slides along the inclined arc of the annular guide rail 812, the sleeve 802 and the iron disc 801 rotate and move upward, when the cross bar 810 slides to the right arc of the annular guide rail 812, the iron disc 801 fits on the bottom of the acrylic plate 703, and the upper surface of the acrylic plate 703 serves as the bottom wall of the track drawing component 700, and the magnetic powder on its surface generates attraction with the iron disc 801;

S3, the output end of the cylinder 705 is extended, driving the transparent groove 706 to move upward and fit on the magnetic powder on the top of the acrylic plate 703, and then the iron disc 801 and the sleeve 1 802 continue to rotate, and the cross bar 810 fits on the right arc portion of the annular guide rail 812 and slides, so that the magnetic powder on the top of the acrylic plate 703 moves with the rotation of the iron disc 801, and at the same time, the acrylic plate 703 blocks the stacked magnetic powder, so that the magnetic powder is flattened on the top of the acrylic plate 703;

S4, when the iron disc 801 moves up and fits on the bottom of the acrylic plate 703, the elastic steel sheet 814 is inserted between two adjacent bosses 707, and then the iron disc 801 rotates, driving the elastic steel sheet 814 to move. When the elastic steel sheet 814 is blocked by the boss 707, the elastic steel sheet 814 bends and deforms. When the elastic steel sheet 814 is deformed and passes over the boss 707, the elastic steel sheet 814 is reset under its own elastic action and hits the surface of the next boss 707, knocking and vibrating the sealing cover 701, further flattening the magnetic powder on the top of the acrylic plate 703;

S5, after the magnetic powder is flattened, when the crossbar 810 slides to the left arc portion of the annular guide rail 812, the motor 1 301 stops working;

S6. After that, the steel wheel to be tested is placed on the top of the lower clamping plate 303, and the rotating shaft 302 is inserted into the center of the steel wheel, and then the upper clamping plate 401 is placed on the top of the steel wheel, and the horizontal bar 413 is held to twist the threaded rod 404, so that the threaded rod 404 is screwed into the threaded hole 304, so that the screwing plate 405 is rotated and lowered. As the screwing plate 405 moves downward, when the plug post 406 is inserted into the arc groove 407, it moves along the arc groove 407 until the plug post 406 fits on one end of the arc groove 407. After that, the turntable 403 is pushed by the plug post 406 and rotates synchronously with the screwing plate 405. The turntable 403 is located at the side wall of the inclined groove 412 to squeeze the sliding post 411 and pull the connecting plate 410 inward, so that the slider 409 moves inward along the sliding groove 408 and fits on the edge of the steel wheel.

S7. After that, the threaded rod 2 604 is driven to rotate by the motor 2 603 to move the slide 500 to the left until the trajectory drawing component 700 moves to the top of the upper clamping plate 401, and then the shaft 1 302 is driven to rotate by the motor 1 301, thereby driving the steel wheel and the clamping fixture 400 to rotate synchronously. When the magnetic block 1 414 and the magnetic block 2 415 rotate with the shaft 1 302 as the axis, the magnetic block 1 414 and the magnetic block 2 415 attract the magnetic powder on the top of the acrylic plate 703, drive the magnetic powder on the top of the acrylic plate 703 to move, and draw the movement trajectory of the magnetic block 1 414 and the magnetic block 2 415. At the same time, the annular light strip 702 fills the acrylic plate 703 with light, and the industrial camera 704 shoots the movement trajectory from the top.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. A steel wheel balance detection device, comprising a detection platform (100), characterized in that: an arch frame (200) is fixedly installed on the top of the detection platform (100), a rotating driving member (300) is arranged on the left half of the detection platform (100), a clamping fixing member (400) is threadedly connected to the top of the rotating driving member (300), and the steel wheel is clamped between the rotating driving member (300) and the clamping fixing member (400), a sliding seat (500) is slidably connected to the top of the arch frame (200), a transverse driving member (600) is arranged on the top of the arch frame (200), and the transverse driving member (600) is used to drive the sliding seat (500) to move transversely, a trajectory drawing component (700) is fixedly installed on the bottom of the sliding seat (500), and magnetic powder is laid on the bottom wall of the trajectory drawing component (700), and a paving component (800) is arranged on the right half of the detection platform (100); The rotating driving member (300) comprises a motor 1 (301) fixedly mounted on the bottom wall of the left half of the arch frame (200); a rotating shaft 1 (302) is fixedly mounted on the top output end of the motor 1 (301); the rotating shaft 1 (302) penetrates and is rotatably connected to the detection platform (100); a lower clamping plate (303) is fixedly mounted on the circumferential surface of the rotating shaft 1 (302) near the top thereof; a threaded hole (304) is provided on the top of the rotating shaft 1 (302); the rotating shaft 1 (302) is plugged into the center of the steel wheel, and the lower clamping plate (303) is attached to the bottom of the steel wheel; The clamping fixture (400) comprises an upper clamping plate (401) attached to the top of the steel wheel, a lower concave portion (402) is provided at the center of the upper clamping plate (401), a rotating disk (403) is rotatably connected inside the lower concave portion (402), a threaded rod (404) is inserted at the center of the lower concave portion (402) and the rotating disk (403), the threaded rod (404) is threadedly connected in the threaded hole (304), and the top end of the threaded rod (404) is fixed A screwing disk (405) is fixedly installed, the screwing disk (405) is attached to the top of the rotating disk (403), and a plugging column (406) is fixedly installed in an array at the bottom of the screwing disk (405). An arc groove (407) is opened in an array through the top of the rotating disk (403), and the arc center of the arc groove (407) coincides with the center of the rotating disk (403). The plugging column (406) corresponds to the arc groove (407) one by one, and the plugging column (406) is inserted into the arc groove (407); The top array of the upper clamping plate (401) is penetrated by a slide groove (408), and the slide groove (408) is arranged along the radial direction of the upper clamping plate (401). A slider (409) is slidably connected to the slide groove (408). The slider (409) is located on both sides of the upper part of the upper clamping plate (401) and is fixedly installed with a connecting plate (410). The connecting plate (410) is Y-shaped when viewed from above, and a sliding column (411) is fixedly installed at one end of the connecting plate (410) close to the center of the upper clamping plate (401); The top of the turntable (403) is provided with an inclined groove (412) penetrating the array, the inclined groove (412) corresponds to the sliding column (411) one by one, the sliding column (411) is slidably connected in the inclined groove (412), and the sliding block (409) is attached to the outer edge of the top of the steel wheel; A horizontal bar (413) is fixedly mounted on the top of the screwing disk (405), and the horizontal bar (413) is arranged along the diameter direction of the screwing disk (405). A first magnetic block (414) is embedded in the left and right halves of the top of the horizontal bar (413), and a second magnetic block (415) is embedded in the top of the sliding block (409); The arch frame (200) is composed of a mounting frame and four supporting legs, the mounting frame is in a square frame shape, and the supporting legs are fixedly mounted at the four corners of the bottom of the mounting frame; The transverse driving member (600) comprises two sets of slide rails (601) fixedly mounted on the front inner wall and the rear inner wall of the installation frame, the front and rear sides of the slide seat (500) are fixedly mounted with slide sleeves (602), the slide seat (500) is slidably connected to the slide rails (601) via the slide sleeves (602), a second motor (603) is fixedly mounted on the right side of the installation frame, a second threaded rod (604) is fixedly mounted on the left output end of the second motor (603), the second threaded rod (604) and the slide rails (601) are parallel to each other, and a threaded collar (605) is fixedly mounted on the top of the slide seat (500), the threaded collar (605) is threadedly connected to the second threaded rod (604); An arched plate (501) is arranged directly below the slide seat (500), a fixed plate (502) is fixedly installed on the back of the arched plate (501), four groups of cantilevers (503) are fixedly installed on the bottom of the slide seat (500), the four groups of cantilevers (503) are distributed in a matrix, the cantilevers (503) are L-shaped, and four groups of sliding rods (504) are fixedly installed on the top of the arched plate (501), the sliding rods (504) correspond to the cantilevers (503) one by one, and the sliding rods (504) penetrate and are slidably connected to the horizontal part of the cantilever (503); The transverse driving member (600) further comprises a vertical plate (606) fixedly mounted on the rear side of the top of the detection platform (100), and two groups of guide grooves (607) are formed through the front side of the vertical plate (606), the two groups of guide grooves (607) are distributed up and down, the middle of the guide grooves (607) are horizontal, and the two ends of the guide grooves (607) are inclined downward; The back of the fixed plate (502) is rotatably connected to two groups of rollers (608), the two groups of rollers (608) are distributed up and down, the rollers (608) correspond to the guide grooves (607) one by one, and the rollers (608) are slidably connected in the guide grooves (607); The trajectory drawing component (700) comprises a sealing cover (701) fixedly mounted on the bottom of the arch plate (501); an annular light strip (702) is fixedly mounted on the inner wall of the bottom end of the sealing cover (701); an acrylic plate (703) is fixedly mounted on the inner wall of the annular light strip (702); an industrial camera (704) is fixedly mounted on the top of the sealing cover (701); a camera head of the industrial camera (704) penetrates into the interior of the sealing cover (701); two groups of cylinders (705) are fixedly mounted on the top of the sealing cover (701); an output end of the cylinder (705) penetrates the top shell of the sealing cover (701); and a transparent groove (706) is fixedly mounted on the output end of the cylinder (705). 2. The steel wheel balancing detection device according to claim 1 is characterized in that: the flattening component (800) comprises an iron disc (801), a sleeve (802) is fixedly installed at the bottom center of the iron disc (801), a rotating shaft (803) is inserted inside the sleeve (802), two groups of convex strips (804) are fixedly installed on the circumferential surface of the rotating shaft (803), and a strip groove is opened on the inner wall of the sleeve (802) corresponding to the convex strip (804), and the convex strip (804) and the strip groove are adapted to slide; A sprocket wheel 1 (805) is fixedly mounted on the circumferential surface of the bottom end of the rotating shaft 2 (803), and a sprocket wheel 2 (806) is fixedly mounted on the circumferential surface of the rotating shaft 1 (302), and the sprocket wheel 1 (805) and the sprocket wheel 2 (806) are connected via a chain belt (807); The outer side of the sleeve one (802) is sleeved with a sleeve two (808), the sleeve two (808) is rotatably connected to the top of the detection platform (100), the circumferential surface of the sleeve two (808) is penetrated by a limiting groove (809), the circumferential surface of the bottom end of the sleeve one (802) is fixedly installed with a cross bar (810), the cross bar (810) is slidably connected in the limiting groove (809), a plurality of support columns (811) are fixedly installed on the top of the right half of the detection platform (100), the plurality of support columns (811) are evenly distributed circumferentially with the sleeve two (808) as the center, an annular guide rail (812) is fixedly installed on the top of the support column (811), and the cross bar (810) fits on the top of the annular guide rail (812); The crossbar (810) is composed of a left arc portion, a right arc portion and two inclined arc portions in the middle, the height of the left arc portion is lower than that of the right arc portion, and the inclined arc portions are connected between the ends of the left arc portion and the right arc portion. 3. The steel wheel balancing detection device according to claim 2 is characterized in that: a connecting ring (813) is fixedly installed at the bottom of the iron disc (801), the cross-section of the connecting ring (813) is L-shaped, and elastic steel sheets (814) are fixed in an array on the top of the edge of the connecting ring (813), and bosses (707) are fixed in an array on the circumferential surface of the bottom end of the sealing cover (701), and the elastic steel sheet (814) is inserted between two adjacent bosses (707). 4. The steel wheel balance detection device according to any one of claims 1 to 3, characterized in that the detection method of the steel wheel balance detection device comprises the following specific steps: S1. The second threaded rod (604) is driven to rotate by the second motor (603), and the threaded connection between the second threaded rod (604) and the threaded collar (605) is coordinated to drive the slide seat (500) to move rightward along the slide rail (601). The slide seat (500) drives the arch plate (501) and the track drawing component (700) to move rightward synchronously, so that the track drawing component (700) is moved away from above the clamping fixture (400). When the arch plate (501) moves rightward, the roller (608) slides in the guide groove (607), so that the track drawing component (700) first rises and then falls during the movement to the right, until the track drawing component (700) is directly above the iron disc (801); S2, the motor 1 (301) drives the rotating shaft 1 (302) to rotate, driving the sprocket 2 (806) to rotate, and the rotating shaft 2 (803) is driven to rotate by cooperating with the rotating action of the sprocket 1 (805), the sprocket 2 (806) and the chain belt (807), and then the sleeve 1 (802) and the iron disc (801) are driven to rotate through the convex strip (804), and during the rotation of the sleeve 1 (802), the cross bar (810) is fitted on the top of the annular guide rail (812) and slides in the limit groove (809). Internal sliding, when the cross bar (810) slides along the inclined arc portion of the annular guide rail (812), the sleeve (802) and the iron disc (801) rotate and move upward, and when the cross bar (810) slides to the right arc portion of the annular guide rail (812), the iron disc (801) fits on the bottom of the acrylic plate (703), and the upper surface of the acrylic plate (703) serves as the bottom wall of the track drawing component (700), and the magnetic powder on the surface generates an attractive force with the iron disc (801); S3, the output end of the cylinder (705) is extended, driving the transparent groove (706) to move upward and fit onto the magnetic powder on the top of the acrylic plate (703), and then the iron disc (801) and the sleeve (802) continue to rotate, and the cross bar (810) fits onto the right arc portion of the annular guide rail (812) and slides, so that the magnetic powder on the top of the acrylic plate (703) moves with the rotation of the iron disc (801), and at the same time, the acrylic plate (703) blocks the stacked magnetic powder, so that the magnetic powder is spread flat on the top of the acrylic plate (703); S4, when the iron disc (801) moves up and fits on the bottom of the acrylic plate (703), the elastic steel sheet (814) is inserted between two adjacent bosses (707), and then the iron disc (801) rotates, driving the elastic steel sheet (814) to move. When the elastic steel sheet (814) is blocked by the boss (707), the elastic steel sheet (814) bends and deforms. When the elastic steel sheet (814) is deformed and passes over the boss (707), the elastic steel sheet (814) is reset under its own elastic action and hits the surface of the next boss (707), knocking and vibrating the sealing cover (701), further flattening the magnetic powder on the top of the acrylic plate (703); S5, after the magnetic powder is spread flat, when the crossbar (810) slides to the left arc portion of the annular guide rail (812), the motor 1 (301) stops working; S6. After that, the steel wheel to be tested is placed on the top of the lower clamping plate (303), and the rotating shaft (302) is inserted into the center of the steel wheel. Then, the upper clamping plate (401) is placed on the top of the steel wheel. The horizontal bar (413) is held to twist the threaded rod (404), so that the threaded rod (404) is screwed into the threaded hole (304), so that the screwing plate (405) is rotated and lowered. As the screwing plate (405) moves downward, when the plug (406) is inserted into the arc groove (407), the screwing plate (405) is rotated and lowered. Then, the sliding plate (409) moves along the arc groove (407) until the plug post (406) fits on one end of the arc groove (407). Then, the rotating disk (403) is pushed by the plug post (406) and rotates synchronously with the screwing disk (405). The rotating disk (403) is located at the side wall of the inclined groove (412) to squeeze the sliding column (411) and pull the connecting plate (410) to move inward, so that the sliding block (409) moves inward along the sliding groove (408) and fits on the edge of the steel wheel. S7. Afterwards, the second motor (603) drives the second threaded rod (604) to rotate, causing the slide (500) to move to the left until the trajectory drawing component (700) moves to the top of the upper clamping plate (401), and then the first motor (301) drives the first shaft (302) to rotate, thereby driving the steel wheel and the clamping fixture (400) to rotate synchronously. When the first magnetic block (414) and the second magnetic block (415) rotate with the first shaft (302) as the axis, the first magnetic block (414) and the second magnetic block (415) attract the magnetic powder on the top of the acrylic plate (703), driving the magnetic powder on the top of the acrylic plate (703) to move and draw the movement trajectory of the first magnetic block (414) and the second magnetic block (415). At the same time, the annular light strip (702) fills the acrylic plate (703) with light, and the industrial camera (704) shoots the movement trajectory from the top.