CN211824286U

CN211824286U - Roundness detection system

Info

Publication number: CN211824286U
Application number: CN202020394582.7U
Authority: CN
Inventors: 王宏; 朱标华; 罗红飞
Original assignee: Hitachi Elevator Motor Guangzhou Co Ltd
Current assignee: Hitachi Elevator China Co Ltd; Hitachi Elevator Motor Guangzhou Co Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-10-30
Anticipated expiration: 2030-03-25

Abstract

The utility model relates to a roundness detection system, including swivel work head, actuating mechanism and visual detection device. The rotary worktable is used for installing a workpiece, and the driving mechanism is used for driving the rotary worktable to rotate. The vision detection device comprises a controller and a sensor, wherein the sensor is used for measuring the workpiece to obtain a plurality of groups of profile change data. The sensor is in communication connection with the controller, and the controller can draw a three-dimensional stereo image of the workpiece through the profile change data and calculate the diameter and the roundness of the workpiece. In the process of rotating the workpiece, the sensor measures the workpiece to obtain profile change data, and the controller obtains a three-dimensional stereogram through the profile change data measured by the displacement sensor. And (4) intercepting the cross section of the three-dimensional body, and calculating the diameter and the roundness of the cross section so as to obtain the diameter and the roundness of the workpiece. The roundness detection system is simple in structure and small in measurement error, and can improve the measurement efficiency and reduce the labor intensity.

Description

Roundness detection system

Technical Field

The utility model relates to a check out test set technical field especially relates to a roundness detection system.

Background

The stator core is an important component for forming a motor magnetic flux loop and fixing a stator coil, and the spliced stator core is a common stator core and is formed by tightly pressing a plurality of punching sheets into a whole through fasteners so as to improve the utilization rate of materials and realize automatic winding and efficient splicing. The diameter and the roundness of the spliced stator core need to be detected in the process of compressing and combining, and if the diameter or the roundness has errors with a standard value, the performance of the motor is influenced, so that the noise, the pulsation and the like of the motor are increased. The traditional roundness measurement adopts a two-point method, three coordinates, a yaw meter and the like, the detection efficiency is low, the labor intensity is high, the operation error is easy to occur, and the detection precision is low.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a roundness detection system and method, which can reduce measurement errors, improve detection efficiency, and reduce labor intensity.

A roundness detection system comprising:

a rotary table for mounting a workpiece;

the driving mechanism is used for driving the rotary worktable to rotate;

the visual detection device comprises a controller and a sensor, wherein the sensor is used for measuring the workpiece to obtain a plurality of groups of profile change data; the sensor is in communication connection with the controller, and the controller can draw a three-dimensional stereo map of the workpiece through the profile change data and calculate the diameter and the roundness of the workpiece.

The roundness detection system at least has the following advantages:

according to the scheme, when the diameter and the roundness of the workpiece need to be detected, the driving mechanism is started, the driving mechanism drives the rotary workbench to rotate for a circle, and then the workpiece mounted on the rotary workbench is driven to rotate for a circle. In the process of rotating the workpiece, the displacement sensor measures a plurality of groups of profile change data of the curved surface of the workpiece, and the controller draws a three-dimensional stereo map through the plurality of groups of profile change data measured by the displacement sensor. And (4) intercepting the cross section of the three-dimensional body, and calculating the diameter and the roundness of the cross section so as to obtain the diameter and the roundness of the workpiece. The roundness detection system of the scheme can measure the diameter and the roundness of a workpiece through the combined action of the rotary workbench, the driving mechanism and the visual detection device, has a simple structure and small measurement error, and can improve the measurement efficiency and reduce the labor intensity.

In one embodiment, the drive mechanism includes a driver and an indexing drive assembly mounted to the driver.

In one embodiment, the indexing drive assembly is a quarter divider.

In one embodiment, the controller cuts a cross section of a height direction middle portion of the three-dimensional perspective view, and calculates a diameter and a roundness of the cross section.

In one embodiment, the roundness detection system further comprises a fixing frame, and the rotating table and the driving mechanism are mounted on the fixing frame.

In one embodiment, the fixing frame comprises a first mounting plate, a second mounting plate and a supporting column, the first mounting plate and the second mounting plate are arranged at intervals, one end of the supporting column is connected with the first mounting plate, and the other end of the supporting column is connected with the second mounting plate.

In one embodiment, the roundness detection system further comprises a bracket, the bracket is arranged on the fixing frame, and the sensor is mounted on the bracket.

In one embodiment, the roundness detection system further comprises a target mark point for being arranged on the outer surface of the workpiece, and the target mark point is in communication connection with the controller.

In one embodiment, the rotary table is provided with a chuck for mounting the workpiece.

In one embodiment, the sensor is one of a laser displacement sensor, a magnetic induction displacement sensor, a contact displacement sensor and an image sensor.

Drawings

Fig. 1 is a schematic structural diagram of a roundness detection system according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a roundness detection system according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating the measuring steps of the roundness detection system according to an embodiment of the present invention.

Description of the drawings:

10. the device comprises a rotary workbench, 20, a driving mechanism, 21, a speed reducing motor, 22, an indexing transmission assembly, 30, a visual detection device, 31, a controller, 32, a sensor, 33, a display, 34, a support, 40, a fixing frame, 41, a first mounting plate, 42, a second mounting plate, 43, a support column, 50, a workpiece, 51 and an object detection marking point.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, fig. 1 shows the structural schematic diagram of the roundness detection system in an embodiment of the present invention, fig. 2 shows the work flow chart of the roundness detection system in an embodiment of the present invention, an embodiment of the present invention provides a roundness detection system, which includes a rotary table 10, a driving mechanism 20 and a vision inspection device 30. The rotary table 10 is used for mounting a workpiece 50, and the driving mechanism 20 is used for driving the rotary table 10 to rotate. The vision inspection device 30 includes a controller 31 and a sensor 32, and the sensor 32 is used for measuring the workpiece 50 to obtain a plurality of sets of profile variation data. The sensor 32 is in communication with the controller 31, and the controller 31 can draw a three-dimensional perspective view of the workpiece 50 according to the profile change data and calculate the diameter and roundness of the workpiece 50.

When the roundness detection system needs to detect the diameter and the roundness of the workpiece 50, the driving mechanism 20 is started, and the driving mechanism 20 drives the rotary table 10 to rotate for one circle, thereby driving the workpiece 50 mounted on the rotary table 10 to rotate for one circle. During the rotation of the workpiece 50, the sensor 32 measures the workpiece 50 to obtain a plurality of sets of profile change data of the curved surface of the workpiece 50, and the controller 31 draws a three-dimensional perspective view through the plurality of sets of profile change data measured by the sensor 32. And (3) intercepting the cross section of the three-dimensional body, and calculating the diameter and the roundness of the cross section to further obtain the diameter and the roundness of the workpiece 50. The roundness detection system of the scheme can measure the diameter and the roundness of the workpiece 50 through the combined action of the rotary worktable 10, the driving mechanism 20 and the visual detection device 30, has a simple structure and small measurement error, and can improve the measurement efficiency and reduce the labor intensity.

It should be noted that, during the rotation of the workpiece 50, the sensor 32 measures the workpiece 50 to obtain a plurality of sets of profile change data of the curved surface of the workpiece 50, and the controller 31 draws a three-dimensional perspective view through the plurality of sets of profile change data measured by the sensor 32. And (3) cutting a cross section of the three-dimensional stereo image of the workpiece 50, so that any diameter of the cross section can be calculated, further a minimum radius and a maximum radius are obtained, and the roundness of the cross section can be obtained by subtracting the minimum radius from the maximum radius, wherein the roundness of the cross section is the roundness of the workpiece 50. It should be understood that a roundness of the workpiece 50 within a certain range, for example, a roundness of the workpiece 50 less than 0.015mm, indicates that the workpiece 50 is a roundness-qualified workpiece.

Specifically, in this embodiment, the workpiece 50 is a stator core of a block type. Under the combined action of the rotary worktable 10, the driving mechanism 20 and the visual inspection device 30, a three-dimensional stereo view of the block type stator core can be obtained, and the cross section of the three-dimensional stereo view is cut, so that the diameter and the roundness of the block type stator core can be calculated. If the roundness of the block stator core exceeds a certain numerical range, the roundness error of the block stator core is large, which affects the motor performance, for example, noise increases and pulsation increases. Of course, in other embodiments, the workpiece 50 may be other parts requiring diameter and roundness measurements.

Further, the above-mentioned rotary table 10 is provided with a chuck for mounting a workpiece. In this embodiment, the workpiece 50 is a block-type stator core, and the inner surface of the block-type stator core is clamped to the chuck, so that the block-type stator core is stably mounted on the rotary table 10, thereby improving the accuracy of roundness detection.

In one embodiment, the drive mechanism 20 includes a reduction motor 21 and an indexing drive assembly 22, the indexing drive assembly 22 being mounted to the reduction motor 21. The rotary worktable 10 can realize multiple times of indexing in the process of rotating for one circle through the indexing transmission component 22 so as to drive the workpiece 50 to stop intermittently; during the dwell of the workpiece 50, the sensor 32 takes high speed measurements of the workpiece 50 so that the sensor 32 can take segmented measurements of the workpiece 50. By measuring the workpiece 50 in a segmented manner, the problem that the traditional roundness detection system cannot measure the workpiece 50 with a large diameter can be solved, and the problem that the workpiece 50 is large in size and low in measurement accuracy can be solved because the sensor 32 measures the workpiece with a small size each time after segmentation.

It should be understood that, in the roundness detection process, the object-to-be-detected mark point 51 is randomly set on the outer surface of the workpiece 50, and the coordinates of the object-to-be-detected mark point 51 are measured and acquired by the sensor 32. Under the combined action of the speed reducing motor 21 and the indexing transmission assembly 22, the workpiece 50 is stopped intermittently; during the process of stopping the workpiece 50, the sensor 32 measures the workpiece 50 in segments and obtains a plurality of sets of profile change data of the curved surface of the workpiece 50 after segmentation. The controller 31 generates a plurality of segment images according to the contour change data, and the controller 31 analyzes the segment images and the texture and synthesizes the segment images in combination with the coordinates of the object detection point 51 to form the three-dimensional stereogram described above.

In the present embodiment, the indexing drive assembly 22 is a quarter-divider. It will be understood that the indexing angle of the four-division divider is 90 °, that is, during the workpiece 50 being rotated by the decelerating motor 21 by 360 °, the workpiece 50 is stopped every 90 ° so that the sensor 32 can measure the workpiece 50 in sections. It should be noted that the time for each pause of the workpiece 50 may be set according to measurement requirements, for example, three seconds for each 90 ° rotation of the workpiece 50. In other embodiments, the indexing transmission assembly 22 may be a two-index divider, an eight-index divider, or the like, and is not limited herein.

In one embodiment, the controller 31 cuts a cross section of the height direction middle portion of the three-dimensional perspective view, and calculates the diameter and roundness of the cross section. It should be understood that the controller 31 takes a cross section of the middle portion in the height direction of the three-dimensional perspective view, that is, a cross section of the middle portion in the height direction of the workpiece 50, and calculates the diameter and the roundness of the cross section to represent the diameter and the roundness of the workpiece 50. If the roundness of the cross section is acceptable, the roundness of the workpiece 50 is acceptable. The cross section of the middle part of the three-dimensional stereo image in the height direction is intercepted, and the diameter and the roundness of the cross section are calculated, so that the accuracy of roundness detection can be ensured.

Specifically, in this embodiment, the workpiece 50 is a stator core in a block form, and pressing plates are disposed on the top and bottom of the stator core in a block form. The height of the block type stator iron core is 80mm, the cross section of the workpiece at the position 39-41 mm away from the pressing plate is cut, the diameter and the roundness of the cross section are calculated, and the roundness of the block type stator iron core is obtained.

Further, the visual inspection device 30 further includes a display 33, and the display 33 is communicatively connected to the controller 31. By providing a display 33 and communicatively connecting the display 33 to the controller 31, the display 33 is able to display and record the measurements of the sensor 32. Meanwhile, the display 33 can display a three-dimensional perspective view of the workpiece 50, so that a worker can intuitively grasp the three-dimensional perspective view of the workpiece 50 and perform a roundness detection operation on the three-dimensional perspective view.

In one embodiment, the roundness detection system further includes a bracket 34 and a fixing frame 40, the sensor 32 is mounted on the bracket 34, and the rotary table 10, the driving mechanism 20 and the bracket 34 are mounted on the fixing frame 40. Specifically, a bracket 34 is provided at one side of the rotary table 10, the sensor 32 is mounted to the bracket 34, and a measurement head of the sensor 32 faces the rotary table 10 to measure the workpiece 50 on the rotary table 10. The fixing frame 40 facilitates fixing and mounting the rotary table 10, the driving mechanism 20, and the sensor 32. In the present embodiment, the sensor 32 is fixed to one side of the workpiece 50 and is parallel to the side of the workpiece 50.

Further, the fixing frame 40 includes a first mounting plate 41, a second mounting plate 42 and a supporting column 43, the first mounting plate 41 is disposed above the second mounting plate 42, one end of the supporting column 43 is connected to the bottom of the first mounting plate 41, and the other end of the supporting column 43 is connected to the top of the second mounting plate 42. When the rotary table 10 is mounted, the rotary table is rotatably mounted on the first mounting plate 41, and the bracket 34 is mounted on the first mounting plate 41; the driving mechanism 20 is arranged on the second mounting plate 42, and the structure is simple and the installation is convenient.

Specifically, in the present embodiment, four support columns 43 are provided, and the four support columns 43 are respectively provided at four corners of the first mounting plate 41 and the second mounting plate 42. Of course, the number and the position of the supporting columns 43 can be set according to actual requirements, and are not limited to this.

In one embodiment, the sensor 32 is one of a laser displacement sensor, a magnetic induction displacement sensor, a contact displacement sensor, and an image sensor. In the present embodiment, the sensor 32 is a laser displacement sensor, the laser displacement sensor is disposed on one side of the workpiece 50, and the distance between the laser displacement sensor and the workpiece 50 is 200 mm. The roundness detection principle of the laser displacement sensor will be described with reference to the rotary table 10, the driving mechanism 20, and the controller 31, specifically as follows: the workpiece 50 is placed on the rotary table 10, and the driving mechanism 20 drives the rotary table 10 to rotate for one revolution, thereby driving the workpiece 50 mounted on the rotary table 10 to rotate for one revolution. The semiconductor laser of the laser sensor 32 is directed to the surface of the workpiece to be measured through a lens, and the receiver lens focuses light reflected by the object and focuses the light on the photosensitive element. During the rotation of the workpiece, the distance between the surface of the workpiece and the laser sensor 32 changes in real time, the angle of the reflected light of the receiver lens changes accordingly, the position of the light focused on the photosensitive element changes, and the laser sensor 32 measures the shape and size of the continuous contour of the surface of the workpiece.

Referring to fig. 3, fig. 3 shows a flowchart of measuring steps of the roundness detection system according to an embodiment of the present invention, which includes the following steps:

s1: establishing an original digital model: the method comprises the steps of driving a standard workpiece to rotate for a circle, measuring the standard workpiece to obtain a plurality of groups of profile change data, obtaining a three-dimensional stereo image of the standard workpiece according to the plurality of groups of profile change data, cutting a cross section of the three-dimensional stereo image, calculating the diameter of the cross section, and further obtaining the roundness of the cross section.

Specifically, the driving mechanism 20 drives the standard workpiece to rotate for one circle, the sensor 32 measures the standard workpiece to obtain a plurality of sets of profile change data, and the controller 31 obtains a three-dimensional perspective view of the standard workpiece according to the plurality of sets of profile change data. The controller 31 intercepts the cross section of the three-dimensional perspective view, calculates any diameter of the cross section to obtain the maximum radius and the minimum radius, and calculates the difference between the maximum radius and the minimum radius to obtain the roundness of the workpiece 50.

S2: detecting the roundness of the detected workpiece: driving the workpiece to be measured to rotate for a circle, measuring the workpiece to be measured to obtain a plurality of groups of profile change data, obtaining a three-dimensional stereo image of the workpiece to be measured according to the plurality of groups of profile change data, and matching the three-dimensional stereo image to a reference coordinate system of a standard workpiece;

specifically, the driving mechanism 20 drives the workpiece to be measured to rotate for one circle, the sensor 32 measures the workpiece to be measured to obtain a plurality of sets of profile change data, and the controller 31 obtains a three-dimensional perspective view of the workpiece to be measured according to the plurality of sets of profile change data, and matches the three-dimensional perspective view of the workpiece to be measured to a reference coordinate system of a standard workpiece. By matching the three-dimensional stereo image of the workpiece to be measured into the reference coordinate system of the standard workpiece, the problem of position deviation of the workpiece to be measured can be eliminated.

S3: comparing the three-dimensional stereo image of the measured workpiece with the three-dimensional stereo image of the standard workpiece, and automatically compensating and correcting a plurality of groups of data of the measured workpiece according to the three-dimensional stereo image of the standard workpiece;

specifically, the controller 31 compares the three-dimensional perspective view of the workpiece to be measured with the three-dimensional perspective view of the standard workpiece, so that clamping deviation of the workpiece 50 during measurement can be automatically identified and compensated and corrected to ensure measurement accuracy, thereby ensuring accuracy of roundness detection.

S4: and intercepting the cross section of the three-dimensional stereo image after the compensation and correction of the measured workpiece, and calculating the diameter of the cross section to further obtain the roundness of the cross section.

Specifically, the controller 31 intercepts a cross section of the three-dimensional perspective view of the measured workpiece after compensation correction, calculates any diameter of the cross section to obtain a maximum radius and a minimum radius, and calculates a difference between the maximum radius and the minimum radius to obtain the roundness of the workpiece 50.

When the diameter and the roundness of a workpiece to be detected need to be detected, firstly, a plurality of groups of profile change data of a standard workpiece are obtained, a three-dimensional stereo image of the standard workpiece is obtained according to the plurality of groups of profile change data, the cross section of the three-dimensional stereo image is cut, and the diameter and the roundness of the cross section are calculated. Then, a plurality of groups of profile change data of the workpiece to be measured are obtained, and a three-dimensional stereo image of the workpiece to be measured is obtained according to the plurality of groups of profile change data. The three-dimensional stereo image of the workpiece to be measured is compared with the three-dimensional stereo image of the standard workpiece, and a plurality of groups of data of the workpiece to be measured are automatically compensated and corrected. And intercepting the cross section of the three-dimensional stereo image after the compensation correction of the measured workpiece, calculating the diameter and the roundness of the cross section, and further obtaining the diameter and the roundness of the workpiece 50 by adopting the roundness detection method of the scheme, so that the roundness detection precision is high and the error is small.

In one embodiment, a first object point is arranged on the outer surface of the standard workpiece, and coordinates of the first object point are acquired. And measuring the standard workpiece in a segmented manner, obtaining a segmented image according to a plurality of groups of profile change data obtained by segmented measurement, analyzing the segmented image and the texture, and combining the coordinates of the first measured object punctuations to synthesize and obtain a three-dimensional stereogram of the standard workpiece. It will be appreciated that the first marker points are randomly located on the outer surface of the master workpiece and are capable of generating a response that directly transmits data to the controller 31 during detection by the sensor 32. By measuring the standard workpiece in sections, the problem that the traditional roundness detection system cannot measure the workpiece 50 with a large diameter can be solved, and the problem that the workpiece 50 is large in size and low in precision can be solved because the sensor 32 measures the workpiece in small size after the workpiece is sectioned.

Specifically, under the combined action of the speed reducing motor 21 and the indexing transmission assembly 22, the standard workpiece is stopped intermittently. During the dwell of the master workpiece, the sensor 32 performs high speed measurements of the master workpiece so that the sensor 32 can perform segmented measurements of the master workpiece.

In one embodiment, a second object-measuring point is arranged on the outer surface of the measured workpiece, and the coordinates of the second object-measuring point are acquired. And measuring the workpiece to be measured in a segmented manner, obtaining a segmented image according to a plurality of groups of profile change data obtained by segmented measurement, analyzing the segmented image and the texture, and combining the coordinates of the mark points of the second measured object to synthesize and obtain a three-dimensional stereo image of the workpiece to be measured. It will be appreciated that the second marker points are randomly located on the outer surface of the workpiece being measured and are capable of generating a response that directly transmits data to the controller 31 during detection by the sensor 32. By measuring the workpiece to be measured in a segmented manner, the problem that the traditional roundness detection system cannot measure the workpiece 50 with a large diameter can be solved, and the problem that the workpiece 50 is large in size and low in precision can be solved due to the fact that the sensor 32 measures the workpiece in a segmented manner at each time.

Specifically, under the combined action of the speed reducing motor 21 and the indexing transmission assembly 22, the workpiece to be measured is stopped intermittently. During the process of stopping the workpiece to be measured, the sensor 32 measures the workpiece to be measured at a high speed, so that the sensor 32 can measure the workpiece to be measured in a segmented manner.

In one embodiment, the cross-section is a cross-section of a height-direction middle portion of the three-dimensional perspective view. It should be understood that the cross section of the height direction middle portion of the three-dimensional perspective view, that is, the cross section of the workpiece 50 in the height direction middle portion, represents the diameter and roundness of the workpiece 50 by calculating the diameter and roundness of the cross section. If the roundness of the cross section is acceptable, the roundness of the workpiece 50 is acceptable. The cross section of the middle part of the three-dimensional stereo image in the height direction is intercepted, and the diameter and the roundness of the cross section are calculated, so that the accuracy of roundness detection can be ensured.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A roundness detection system, comprising:

a rotary table for mounting a workpiece;

the driving mechanism is used for driving the rotary worktable to rotate;

2. The roundness detection system of claim 1 wherein the drive mechanism includes a driver and an indexing drive assembly, the indexing drive assembly being mounted to the driver.

3. The roundness detection system of claim 2 wherein the indexing drive assembly is a quarter-index divider.

4. The roundness detection system according to claim 1, wherein the controller cuts a cross section in a middle portion in a height direction of the three-dimensional perspective view, and calculates a diameter and roundness of the cross section.

5. The roundness detection system of claim 1, further comprising a mount to which the rotary table and the drive mechanism are mounted.

6. The roundness detection system of claim 5, wherein the mount includes a first mounting plate, a second mounting plate, and a support post, the first mounting plate and the second mounting plate are disposed at an interval, one end of the support post is connected to the first mounting plate, and the other end of the support post is connected to the second mounting plate.

7. The roundness detection system of claim 5, further comprising a bracket provided to the mount, wherein the sensor is mounted to the bracket.

8. The roundness detection system of claim 1 further comprising a target landmark for placement on an outer surface of the workpiece, the target landmark being in communication with the controller.

9. The roundness detection system of claim 1 wherein the rotary table is provided with a chuck for mounting the workpiece.

10. The roundness detection system of claim 1 wherein the sensor is one of a laser displacement sensor, a magneto-inductive displacement sensor, a contact displacement sensor, and an image sensor.