CN113019976A - Flatness detection system - Google Patents

Flatness detection system Download PDF

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Publication number
CN113019976A
CN113019976A CN202110335354.1A CN202110335354A CN113019976A CN 113019976 A CN113019976 A CN 113019976A CN 202110335354 A CN202110335354 A CN 202110335354A CN 113019976 A CN113019976 A CN 113019976A
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China
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detection
detected
unit
sensor
flatness
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CN202110335354.1A
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CN113019976B (en
Inventor
柯海森
柯新钢
李声亮
何佳敏
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China Jiliang University
China Jiliang University Shangyu Advanced Research Institute Co Ltd
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China Jiliang University
China Jiliang University Shangyu Advanced Research Institute Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34Sorting according to other particular properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/02Measures preceding sorting, e.g. arranging articles in a stream orientating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36Sorting apparatus characterised by the means used for distribution
    • B07C5/361Processing or control devices therefor, e.g. escort memory
    • B07C5/362Separating or distributor mechanisms

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Abstract

The invention provides a flatness detection system, which comprises a feeding device, a discharging device and a detection device, wherein the feeding device conveys an object to be detected to the detection device; the discharging device is used for discharging the object to be detected after detection; the detection device comprises a lifting mechanism, a fan-shaped connecting plate, 3 groups of detection units and a rotary system, wherein each detection unit comprises a sensor and a linear module; the rotary system comprises a rotary platform and a plurality of groups of detection stations, and the detection stations are used for bearing the object to be detected; the rotary system sends an object to be detected to the lower part of the detection unit, the linear module adjusts the position of the sensor to enable the sensor to be located above the surface to be detected of the object to be detected, the lifting mechanism is lowered under the action of the lifting mechanism to enable the sensor to contact the object to be detected and output a detection result to complete detection once, the lifting mechanism is lifted, and the steps are repeated until the surface to be detected of the object to be detected is sampled.

Description

Flatness detection system
Technical Field
The invention belongs to the technical field of test equipment, and particularly relates to a flatness detection system.
Background
The automobile air conditioner electromagnetic clutch is one of important parts of an automobile air conditioner compressor system, generally consists of a belt pulley assembly, a coil assembly and a driving disc assembly, and the working principle of the automobile air conditioner electromagnetic clutch is as follows: when the compressor works, the electromagnetic coil is electrified to generate magnetic force to enable the belt pulley to be attracted with the driving disc, so that the torque of the engine is transmitted to the compressor main shaft, and the compressor main shaft rotates.
Therefore, as a power transmission member, a pulley must be manufactured with precision in various aspects in order to ensure high efficiency of power transmission. For example, in the flatness detection of the contact surface between the belt pulley and the driving disc, at present, the existing detection mode is that the surface to be detected of the belt pulley is in contact with the sensor, and the belt pulley rotates to make the sensor move for a circle along with the surface to be detected of the belt pulley, so that the flatness detection of the surface to be detected of the belt pulley is completed.
However, the prior art still has problems: the belt pulley can beat when rotating to detect the precision and cause the influence to the plane degree, and current technical scheme is inefficient, is difficult to adapt to the detection demand of the belt pulley of multiple model.
Therefore, it is necessary to provide a technical solution with higher flatness detection accuracy and better detection efficiency.
Disclosure of Invention
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a flatness detection system comprises a feeding device, a discharging device and a detection device, wherein the feeding device is used for conveying an object to be detected to the detection device; the discharging device is used for discharging the object to be detected after detection; the detection device is used for detecting the object to be detected and comprises a lifting mechanism, a fan-shaped connecting plate, 3 groups of detection units and a rotation system, wherein each detection unit comprises a sensor and a linear module; providing a platform as a base, wherein the lifting mechanism is vertical to the platform and is connected with the detection unit through the fan-shaped connecting plate; the linear module is rigidly connected with the fan-shaped connecting plate, and the sensor is connected with the linear module; the rotary system comprises a rotary platform and a plurality of groups of detection stations arranged on the rotary platform, and the detection stations are used for bearing the object to be detected; when the device works, the rotary system sends an object to be detected to the lower part of the detection unit, the linear module adjusts the position of the sensor to enable the sensor to be positioned above the surface to be detected of the object to be detected, the lifting mechanism descends under the action of the lifting mechanism to enable the sensor to contact the object to be detected and output a detection result to complete one-time detection, the lifting mechanism is lifted, and the steps are repeated until the surface to be detected of the object to be detected is sampled.
Further, the sensor is a differential variable pressure type displacement sensor.
Furthermore, linear module is step-by-step slip table, step-by-step slip table drive differential variable pressure formula displacement sensor removes, and each differential variable pressure formula displacement sensor displacement distance is the same, promptly every time differential variable pressure formula displacement sensor removes, with the geometric center of fan-shaped connecting plate is the centre of a circle, each differential variable pressure formula displacement sensor is in on same circumference.
Furthermore, a circle with the geometric center of the fan-shaped connecting plate as the center of a circle and a straight line where the motion path of the differential variable pressure type displacement sensor is positioned trisecting the circle.
Furthermore, at any time, under the condition that the probe of each differential variable pressure type displacement sensor does not contact with the object to be measured, the probe position of each differential variable pressure type displacement sensor is at the same height relative to the platform.
Furthermore, the flatness detection device also comprises a photoelectric switch and a baffle plate, wherein the baffle plate is connected with the stepping sliding table and moves along with the stepping sliding table, so that the baffle plate and the differential variable-voltage displacement sensor on the stepping sliding table keep fixed relative positions, the photoelectric switch is arranged on a movement path of the baffle plate, and the distances of the junctions of the photoelectric switches and the movement path of the differential variable-voltage displacement sensor are consistent; when the baffle passes through the photoelectric switch, the stepping sliding table resets.
Furthermore, the detection devices are at least provided with two groups, wherein probes of the sensors in the two groups of detection devices are different so as to adapt to different detection scenes.
Furthermore, the feeding device comprises an object to be detected conveying unit, a limiting unit and a first object to be detected grabbing unit; the object conveying unit is used for conveying the object to be detected to the detection device; the limiting unit is arranged in the conveying direction of the conveying unit of the object to be detected, so that the object to be detected on the conveying unit of the object to be detected is fixed relative to the position of the limiting unit under the limitation of the limiting unit; the first object to be detected grabbing unit comprises a first electromagnet and two groups of driving devices with orthogonal working directions, the first electromagnet is driven by the first driving device to vertically lift, and the object to be detected is placed on the detection station under the driving of the second driving device after being grabbed.
Furthermore, the discharging device comprises a second object to be detected grabbing unit and a plurality of groups of object to be detected sorting and conveying units; the second determinand snatchs the unit and includes second electro-magnet and two sets of operating direction orthogonal drive arrangement, the second electro-magnet is vertical lift under third drive arrangement's drive, snatchs behind the determinand under fourth drive arrangement's drive, according to detection device's testing result, will pass through the detection the determinand is placed respectively differently on the determinand letter sorting transmission unit, wherein, the quantity of determinand letter sorting transmission unit is two sets of at least.
Further, the detection station is a workpiece with an upper cylinder and a lower cylinder which are coaxial, wherein the diameter of the first cylinder positioned above is smaller than that of the second cylinder positioned below; the diameter of the first cylinder positioned above is matched with the axis through hole of the object to be detected, so that the first cylinder can be nested with the axis through hole of the object to be detected; the diameter of the second cylinder positioned below is larger than the axis through hole of the object to be tested, so that the second cylinder can bear the object to be tested; the rotary system at least comprises two groups of detection stations, the diameters of first cylinders of the two groups of detection stations respectively correspond to objects to be detected with different axial center through hole diameters, and the number of the detection stations in each group is 4.
The flatness detection system provided by the invention utilizes the detection of the static point to avoid the problem that the detection precision is influenced by the jumping of the object to be detected in the traditional detection, thereby improving the detection precision, and meanwhile, the flatness detection system can also be suitable for belt pulleys of various types and improve the detection efficiency.
Drawings
FIG. 1 is a perspective view of a planarity detection system;
FIG. 2 is a schematic view of the fan-shaped connecting plate and the detecting unit;
FIG. 3 is a schematic view of a pulley;
FIG. 4 is a partially enlarged schematic view of the planarity detection system;
FIG. 5 is a top view of the planarity detection system.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It should be noted that the drawings provided in the present embodiment are only schematic and illustrate the basic idea of the present invention, and although the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation, the form, quantity and proportion of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
As shown in fig. 1, the present invention provides a flatness detecting system, which can be used for detecting the flatness of a pulley in an electromagnetic clutch, the flatness detecting system includes a feeding device 100, a discharging device 300 and a detecting device 200, the feeding device 100 is used for conveying an object to be detected to the detecting device 200; the discharging device 300 is used for discharging the object to be detected after detection; the detecting device 200 is used for detecting the object to be detected, the detecting device 200 includes a lifting mechanism 210, a fan-shaped connecting plate 220, a plurality of groups of detecting units 230 and a rotating system 240, wherein the detecting units 230 include a sensor 231 and a linear module 232; providing a platform as a base, wherein the lifting mechanism 210 is perpendicular to the platform, and the lifting mechanism 210 is connected with the detection unit 230 through a fan-shaped connecting plate 220; the number of the detecting units 230 is at least 3, wherein the linear module 232 is rigidly connected to the fan-shaped connecting plate 220, and the sensor 231 is connected to the linear module 232; the rotating system 240 includes a rotating platform 242 and a plurality of detecting stations 241 disposed on the rotating platform, and the detecting stations 241 are used for carrying the object to be detected.
As a specific implementation manner, in this embodiment, the present invention employs 3 sets of detection units 230. During operation, the revolving system 240 sends the object to be tested to the lower part of the detecting unit 230, the linear module 232 adjusts the position of the sensor 231 to make the sensor 231 located above the surface to be tested of the object to be tested, the 3 groups of detecting units 230 are lowered under the action of the lifting mechanism 210, the sensor 231 contacts the object to be tested and finishes one detection after outputting the detection result, the lifting mechanism 210 is lifted, and the steps are repeated until the sampling of the surface to be tested of the object to be tested is finished.
As a specific implementation, in this embodiment, the sensor 231 may be a differential transformer displacement sensor.
As a specific implementation manner, in this embodiment, the linear module 232 may adopt a stepping sliding table, the stepping sliding table 232 drives the differential transformer displacement sensors 231 to move, and displacement distances of the differential transformer displacement sensors 231 are the same, that is, each time the differential transformer displacement sensor 231 moves, the differential transformer displacement sensors 231 are located on the same circumference with the geometric center of the fan-shaped connecting plate 220 as a center of a circle.
The circle with the geometric center of the sector connecting plate 220 as the center is trisected by a straight line where the motion path of the differential transformer displacement sensor 231 is located.
As shown in fig. 2, as an exemplary embodiment, the fan-shaped connection plate 220 includes a number of fan spokes radiating outward from a center corresponding to the detection unit 230, each fan spoke includes a torsion section near the center and a straight section extending outward, a torsion angle of the torsion section is such that one side of the straight section is on a straight line passing through the center, the corresponding detection unit 230 is disposed on the straight section, wherein a linear module 232 of the detection unit 230 is fixed on the straight section, and a sensor 231 of the detection unit moves linearly in the diameter direction along the side of the straight section on the diameter as a guide rail under the driving of the linear module 232.
At any time, when the probe of each differential pressure type displacement sensor 231 does not contact the object to be measured, the probe position of each differential pressure type displacement sensor 231 is at the same height with respect to the stage.
As shown in fig. 2, the flatness detecting apparatus further includes a photoelectric switch 250 and a baffle 251, the baffle 251 is connected with the stepping sliding table 232 and follows the stepping sliding table 232 to displace, so that the baffle 251 and the differential variable voltage type displacement sensor 231 on the stepping sliding table 232 keep fixed relative positions, the photoelectric switch 250 is disposed on the movement path of the baffle 251, and the distances of the junctions of the movement paths of the photoelectric switch 250 and the differential variable voltage type displacement sensor 231 are the same, which is embodied in that the distances of the photoelectric switches 250 from the center of the fan-shaped connecting plate 220 are the same; when the baffle 251 passes through the photoelectric switch 250, the stepping sliding table 232 is reset, so as to ensure the detection precision of the present invention, and the resetting of the stepping sliding table 232 may specifically be expressed as that the position of the stepping sliding table 232 returns to the initial position with the photoelectric switch as a reference target.
As shown in fig. 3, the width of the surface to be inspected of the pulley of the object to be inspected is sometimes too narrow, and the probes of the differential voltage-varying displacement sensor 231 for detecting 3 rings inside cannot meet the requirement for detecting the outermost ring, so that the detecting device 200 has at least two sets, wherein the probes of the sensors in the two sets of detecting devices 200 are different to adapt to different detection scenes.
As a specific embodiment, the flatness detecting system provided by the invention has two detecting devices 200, wherein the first detecting device 201 is used for detecting the flatness of the 3 inner rings of the belt pulley, and the second detecting device 202 is used for detecting the flatness of the outermost ring of the belt pulley.
As shown in fig. 4, which is a partially enlarged schematic view of the flatness detecting system, the feeding device 100 includes an object conveying unit 110, a limiting unit 120, and a first object grabbing unit 130; the object conveying unit 110 is used for conveying the object to be detected to the detection device 200; the limiting unit 120 is disposed in the conveying direction of the object conveying unit 110, so that the object positioned on the object conveying unit 110 is fixed relative to the position of the limiting unit 120 under the limitation of the limiting unit 120; as an exemplary embodiment, the limiting unit 120 adopted in the present invention is a workpiece with a V-shaped structure, and further, a proximity switch may be further installed on the limiting unit 120, and when the proximity switch detects that there is an object to be measured positioned by the limiting unit 120, the first object to be measured grabbing unit 130 grabs the object to be measured.
The first object grabbing unit 130 comprises a first electromagnet 131 and two groups of driving devices with orthogonal working directions; the first electromagnet 131 is driven by the first driving device 132 to vertically lift and lower, and after the object to be detected is grabbed, the object to be detected is placed on the detection station 241 under the driving of the second driving device 133.
After the placement is completed, the first detection device 201 is started, the differential variable-voltage displacement sensors 231 are driven by the stepping sliding table 232 to move from the positions of the photoelectric switches to the center of the fan-shaped connecting plate 220, the displacement distances of the differential variable-voltage displacement sensors 231 are consistent, when the belt pulley moves to the position above the third circle from inside to outside, the stepping sliding table 232 stops working, the lifting mechanism 210 stops after beginning to descend by a fixed distance, the fixed distance is a preset value, and the probes of the differential variable-voltage displacement sensors 231 contact the belt pulley of the object to be detected. It can be easily understood that, in an ideal case, if the surface to be measured of the pulley is horizontal, the data measured by each differential variable pressure type displacement sensor 231 completely coincide, but this case is difficult to achieve, and generally, the degree of deviation of the data measured by each differential variable pressure type displacement sensor 231 is within an allowable range, that is, the flatness of the pulley detected this time is considered to be qualified, and the lifting mechanism is lifted after a fixed time interval.
Meanwhile, in order to protect the probe, when the measured value of any one differential pressure-changing type displacement sensor 231 reaches a threshold value, the lifting mechanism stops descending, and the lifting mechanism rises after a fixed time interval; the threshold may be artificially preset.
In order to detect the flatness condition of the third ring of the belt pulley from inside to outside, the above steps need to be repeated to complete the detection of each ring of the belt pulley after the process of detecting the belt pulley once is completed.
After a complete process of detecting the pulley is completed, the stepping sliding table 232 drives the differential voltage-changing type displacement sensor 231 to move towards the photoelectric switch 250, so that the reset is completed.
After the first detecting device 201 finishes detecting, the rotary platform 242 rotates a certain angle to send the belt pulley to the lower part of the second detecting device 202, and the second detecting device 202 detects the flatness of the outermost ring of the belt pulley according to the method.
With reference to fig. 4 and the top view of the flatness detecting system shown in fig. 5, the discharging device 300 includes a second object capturing unit 310 and a plurality of object sorting and conveying units 320; the second object grabbing unit 310 includes a second electromagnet 311 and two sets of driving devices with orthogonal working directions, the second electromagnet 311 is driven by a third driving device 312 to vertically lift and grab the object, and then under the driving of a fourth driving device 313, according to the detection result of the detection device 200, the object to be detected is placed on different object sorting and transmission units 320, wherein the number of the object sorting and transmission units 320 is at least two.
Specifically, the first and third driving devices 132 and 312 may be air cylinders or linear motors, and the second and fourth driving devices 133 and 313 may be ball screw modules.
As an exemplary embodiment, the flatness detecting system provided by the present invention has 3 sets of the object sorting and transmitting units 320, wherein the first object sorting and transmitting unit 321 is used for transporting the belt pulley that is not qualified after detection, the second object sorting and transmitting unit 322 is used for transporting the belt pulley that is qualified after detection and is of a common grade, and the third object sorting and transmitting unit 323 is used for transporting the belt pulley that is qualified after detection and is of a good grade.
The classification of the pulleys is as follows:
in the two groups of detection devices 200, if any detection device detects that the maximum deviation value of the flatness is more than +/-50 microns, the belt pulley is unqualified and should be sorted into the first object to be detected sorting and conveying unit 321;
in the two groups of detection devices 200, if any detection device detects that the maximum deviation value of the flatness is less than or equal to +/-50 microns and greater than +/-30 microns, the belt pulley is in a common grade and should be sorted into the second to-be-detected object sorting and transmitting unit 322;
in the two sets of detecting devices 200, if any one detecting device detects that the maximum deviation value of the flatness is less than or equal to +/-30 μm, the belt pulley is in good product grade and should be sorted into the third to-be-detected object sorting and conveying unit 323.
In practical applications, the types of the pulleys are different, and the specific expression is that the diameters, heights and inner diameters of the pulleys of different types are different, so that the invention provides the following solutions for the distinguishing characteristics among different pulleys in order to improve the universality of the invention:
the above-mentioned spacing unit 120 solves the problem that, when facing pulleys of different diameters, the axial positions of the various pulleys are on the same straight line under the action of the spacing unit 120, so that only the driving distance of the second driving device 133 needs to be adjusted.
In view of the distinguishing feature of the difference in height, a spring is provided as a buffer between the first electromagnet 131 and the connecting member of the first driving means 132, as shown in fig. 5.
Aiming at the distinguishing characteristic that the inner diameters are different, the invention designs different detection stations 241 to solve the problem, and the scheme of the detection station 241 designed by the invention is as follows:
the detection station 241 is a workpiece with an upper cylinder and a lower cylinder which are coaxial, wherein the diameter of the first cylinder 241a positioned above is smaller than that of the second cylinder 241b positioned below; the diameter of the first cylinder 241a above is matched with the axis through hole of the object to be detected, so that the first cylinder 241a can be nested with the axis through hole of the object to be detected; the diameter of the second cylinder 241b located below is larger than the axial center through hole of the object to be measured, so that the second cylinder 241b can bear the object to be measured; the rotary system 240 in the flatness detection system provided by the invention comprises two groups of detection stations, the diameters of the first cylinders 241a of the two groups of detection stations respectively correspond to the diameters of the axle center through holes of the belt pulleys of two types, the number of the detection stations in each group is 4, and the two groups of detection stations are uniformly distributed on the rotary platform 242 at intervals.
The present invention can select two modes to correspond to two different types of pulleys during operation, for example, when one of the modes is selected according to the type of the pulley to be detected, the working distance of the second driving device 133 is adjusted to achieve the following conditions: when the first object grabbing unit 130 is moved to a position right above the pulley and the pulley is placed, the axial center through hole of the pulley can be sleeved on the first cylinder 241a of the detection station.
As shown in fig. 5, the flatness detecting system provided by the present invention further includes a controller 400 for controlling the switches of the system and performing the mode selection as described above.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A flatness detection system, characterized by: the system comprises a feeding device, a discharging device and a detection device, wherein the feeding device is used for conveying an object to be detected to the detection device; the discharging device is used for discharging the object to be detected after detection; the detection device is used for detecting the object to be detected and comprises a lifting mechanism, a fan-shaped connecting plate, 3 groups of detection units and a rotation system, wherein each detection unit comprises a sensor and a linear module; providing a platform as a base, wherein the lifting mechanism is vertical to the platform and is connected with the detection unit through the fan-shaped connecting plate; the linear module is rigidly connected with the fan-shaped connecting plate, and the sensor is connected with the linear module; the rotary system comprises a rotary platform and a plurality of groups of detection stations arranged on the rotary platform, and the detection stations are used for bearing the object to be detected; when the device works, the rotary system sends an object to be detected to the lower part of the detection unit, the linear module adjusts the position of the sensor to enable the sensor to be positioned above the surface to be detected of the object to be detected, the lifting mechanism descends under the action of the lifting mechanism to enable the sensor to contact the object to be detected and output a detection result to complete one-time detection, the lifting mechanism is lifted, and the steps are repeated until the surface to be detected of the object to be detected is sampled.
2. The flatness detection system according to claim 1, wherein: the sensor is a differential pressure-changing displacement sensor.
3. The flatness detection system according to claim 2, wherein: the linear module is a stepping sliding table, the stepping sliding table drives the differential variable pressure type displacement sensor to move, the displacement distances of the differential variable pressure type displacement sensors are the same, namely, each time the differential variable pressure type displacement sensor moves, the geometric center of the fan-shaped connecting plate is used as the circle center, and the differential variable pressure type displacement sensors are located on the same circumference.
4. The flatness detection system of claim 3, wherein: and a circle taking the geometric center of the fan-shaped connecting plate as the center of a circle, wherein a straight line where the motion path of the differential pressure-variable displacement sensor is positioned trisects the circle.
5. The flatness detection system of claim 4, wherein: and at any moment, under the condition that the probe of each differential variable pressure type displacement sensor does not contact the object to be measured, the probe position of each differential variable pressure type displacement sensor is at the same height relative to the platform.
6. The flatness detection system of claim 5, wherein: the flatness detection device also comprises a photoelectric switch and a baffle plate, the baffle plate is connected with the stepping sliding table and moves along with the stepping sliding table, so that the baffle plate and the differential variable-voltage displacement sensor on the stepping sliding table keep fixed relative positions, the photoelectric switch is arranged on a movement path of the baffle plate, and the distances of the junctions of the photoelectric switches and the straight lines where the movement paths of the differential variable-voltage displacement sensor are located are consistent; when the baffle passes through the photoelectric switch, the stepping sliding table resets.
7. The flatness detection system of claim 6, wherein: the detection devices are at least two groups, wherein probes of the sensors in the two groups of detection devices are different so as to adapt to different detection scenes.
8. The flatness detection system according to claim 1, wherein: the feeding device comprises an object to be detected conveying unit, a limiting unit and a first object to be detected grabbing unit; the object conveying unit is used for conveying the object to be detected to the detection device; the limiting unit is arranged in the conveying direction of the conveying unit of the object to be detected, so that the object to be detected on the conveying unit of the object to be detected is fixed relative to the position of the limiting unit under the limitation of the limiting unit; the first object to be detected grabbing unit comprises a first electromagnet and two groups of driving devices with orthogonal working directions, the first electromagnet is driven by the first driving device to vertically lift, and the object to be detected is placed on the detection station under the driving of the second driving device after being grabbed.
9. The flatness detection system according to claim 1, wherein: the discharging device comprises a second object to be detected grabbing unit and a plurality of groups of object to be detected sorting and conveying units; the second determinand snatchs the unit and includes second electro-magnet and two sets of operating direction orthogonal drive arrangement, the second electro-magnet is vertical lift under third drive arrangement's drive, snatchs behind the determinand under fourth drive arrangement's drive, according to detection device's testing result, will pass through the detection the determinand is placed respectively differently on the determinand letter sorting transmission unit, wherein, the quantity of determinand letter sorting transmission unit is two sets of at least.
10. The flatness detection system according to claim 1, wherein: the detection station is a workpiece with an upper cylinder and a lower cylinder which are coaxial, wherein the diameter of the first cylinder positioned above is smaller than that of the second cylinder positioned below; the diameter of the first cylinder positioned above is matched with the axis through hole of the object to be detected, so that the first cylinder can be nested with the axis through hole of the object to be detected; the diameter of the second cylinder positioned below is larger than the axis through hole of the object to be tested, so that the second cylinder can bear the object to be tested; the rotary system at least comprises two groups of detection stations, the diameters of first cylinders of the two groups of detection stations respectively correspond to objects to be detected with different axial center through hole diameters, and the number of the detection stations in each group is 4.
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