Automatic detection equipment for number of bearing rolling bodies

Abstract

The automatic detection equipment for the number of the bearing rolling bodies comprises a cabinet body, a feeding mechanism, a rotating mechanism, an image acquisition mechanism, a position sensor, a controller, a sorting mechanism and a sorting box, and automatic detection of the number of the bearing rolling bodies and automatic sorting of bearings to be detected can be achieved; during use, a to-be-detected bearing is conveyed to the rotating mechanism through the feeding mechanism, the to-be-detected bearing rotates along with the rotating mechanism, the image acquisition mechanism acquires an image of the to-be-detected bearing, the controller controls the sorting mechanism to sort the to-be-detected bearing, and the to-be-detected bearing is sorted to the first sorting channel or the second sorting channel. And the bearing detection efficiency and the automation level are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of bearing detection, and in particular relates to an automatic detection device for the number of rolling elements of a bearing. Background Art

[0002] Rolling elements are important components of bearings, and the number of rolling elements assembled directly affects the load-bearing and service life of the bearings. Aviation bearings are produced in small batches and with multiple varieties. At the same time, aviation bearings have complex structures such as flanges and positioning flanges, making it difficult to achieve automated inspection of aviation bearings. Currently, after the bearings are assembled, the number of rolling elements is inspected manually by visual inspection, which has low inspection efficiency and may miss inspections after fatigue, bringing certain quality risks. Summary of the invention

[0003] The purpose of the present invention is to solve the problems of low detection efficiency and missed detection after fatigue in the manual visual detection of aviation bearing rolling elements in the prior art, and to provide an automatic detection device for the number of bearing rolling elements.

[0004] An automatic detection device for the number of rolling elements of a bearing comprises a cabinet, a feeding mechanism, a rotating mechanism, an image acquisition mechanism, a position sensor, a controller, a sorting mechanism and a sorting box;

[0005] The feeding mechanism, the rotating mechanism, the position sensor, the image acquisition mechanism and the sorting mechanism are fixed on the top of the cabinet, and the controller is arranged inside the cabinet;

[0006] The output port of the bearing to be tested of the feeding mechanism is close to the rotating mechanism, and the feeding mechanism is used to transfer the bearing to be tested to the rotating mechanism; the rotating mechanism is used to carry the bearing to be tested and rotate with the rotating mechanism; the image acquisition device is located above the rotating mechanism, and the position sensor is fixed at a set position. When the bearing to be tested rotates with the rotating mechanism and passes through the position sensor, the position sensor outputs position information to the controller;

[0007] When the controller receives the position information, it controls the image acquisition device to obtain the image of the bearing to be tested on the rotating mechanism and sends it to the controller; the sorting box includes multiple sorting channels; the controller is used to obtain the number of rolling elements of the bearing to be tested according to the image of the bearing to be tested, and the controller is also used to control the sorting mechanism to sort the bearing to be tested to the corresponding sorting channel according to the number of rolling elements of the bearing to be tested.

[0008] Beneficial Effects

[0009] The present application discloses an automatic detection device for the number of bearing rolling elements, which can realize automatic detection of the number of bearing rolling elements and automatic sorting of bearings to be tested. When in use, the bearing to be tested is transferred to the rotating mechanism through the feeding mechanism, the bearing to be tested rotates with the rotating mechanism, the image acquisition mechanism obtains the image of the bearing to be tested, the controller obtains the number of bearing rolling elements to be tested according to the image of the bearing to be tested, and controls the sorting mechanism to sort the bearing to be tested according to the number of rolling elements. If the number of bearing rolling elements to be tested is normal, it is sorted to the first sorting channel, and if the number of bearing rolling elements to be tested is abnormal, it is sorted to the second sorting channel, thereby improving the bearing detection efficiency and automation level. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A side view of a device for automatically detecting the number of rolling elements in a bearing according to a specific embodiment of the present application;

[0011] Figure 2 This is a left view of a bearing rolling element quantity automatic detection device according to a specific embodiment of the present application;

[0012] Figure 3 This is a front view of a device for automatically detecting the number of rolling elements in a bearing according to a specific embodiment of the present application;

[0013] Figure 4 This is a top view of a device for automatically detecting the number of rolling elements in a bearing according to a specific embodiment of the present application. DETAILED DESCRIPTION

[0014] The following will be combined Figures 1 to 4 , describing the present embodiment; an automatic detection device for the number of rolling elements of a bearing, comprising a cabinet 1, a feeding mechanism, a rotating mechanism, an image acquisition mechanism, a position sensor, a controller, a sorting mechanism and a sorting box 10;

[0015] The feeding mechanism, the rotating mechanism, the position sensor 6, the image acquisition mechanism and the sorting mechanism are fixed on the top of the cabinet, and the controller is arranged inside the cabinet;

[0016] The feeding mechanism is used to transfer the bearing to be tested to the rotating mechanism. The output port of the feeding mechanism is close to the rotating mechanism. The rotating mechanism is used to carry the bearing to be tested so that the bearing to be tested rotates with the rotating mechanism. The image acquisition device is located above the rotating mechanism. The position sensor 6 is fixed at a set position. When the bearing to be tested rotates with the rotating mechanism and passes through the position sensor 6, the position sensor 6 outputs position information to the controller.

[0017] When the controller receives the position information, it controls the image acquisition device to obtain the image of the bearing to be tested on the rotating mechanism and sends it to the controller; the sorting box 10 includes multiple sorting channels; the controller is used to obtain the number of rolling elements of the bearing to be tested according to the image of the bearing to be tested, and the controller is also used to control the sorting mechanism to sort the bearing to be tested to the corresponding sorting channel according to the number of rolling elements of the bearing to be tested.

[0018] Specifically, the feeding mechanism transfers the bearing to be tested to the rotating mechanism, the rotating mechanism carries the bearing to be tested so that the bearing to be tested rotates with the rotating mechanism, when the bearing to be tested passes through the position sensor, the position sensor obtains the position information of the bearing to be tested and sends the position information to the controller; the controller controls the image acquisition mechanism to obtain the image of the bearing to be tested, the controller obtains the number of bearing rolling elements according to the image of the bearing to be tested, the controller controls the sorting mechanism to sort the bearing to be tested to the corresponding sorting channel according to the number of bearing rolling elements to be tested, thereby realizing automatic detection of the number of bearing rolling elements and automatic sorting of the bearings to be tested, and improving the bearing detection efficiency and automation level; the bearing to be tested is an aviation bearing, and the automatic detection equipment for the number of bearing rolling elements can be used to sort aviation bearings.

[0019] Furthermore, the feeding mechanism includes a conveying device 2 and a baffle 3. The baffle 3 is arranged above the conveying device and is used to change the transmission route of the bearing to be tested on the conveying device and transmit the bearing to be tested to the rotating mechanism.

[0020] Furthermore, the rotating mechanism includes a motor, a reducer, a tray and a rotating disk 9. The motor output shaft is connected to the reducer input shaft, the reducer output shaft is connected to the tray, and the reducer drives the tray to rotate; the rotating disk 9 is located above the tray and is fixedly connected to the tray. The rotating disk 9 is used to carry the bearing to be tested so that the bearing to be tested rotates with the rotating disk 9.

[0021] Furthermore, the rotating disk 9 is a ring made of glass. Specifically, the light transmittance of the rotating disk reaches more than 98%, which can provide optical conditions for high-precision detection and facilitate the image acquisition mechanism to obtain a clear image of the bearing to be tested.

[0022] Furthermore, the image acquisition mechanism includes a support rod 4, a camera body 7 and a backlight 8; the camera body 7 is arranged at the top of the support rod 4 and is located above the rotating mechanism; the backlight is located directly below the camera body 7 and is fixedly connected to the cabinet 1, and the backlight 8 and the camera body 7 are symmetrically arranged on the upper and lower sides of the rotating mechanism, and the backlight 8 is used to provide a parallel light source; the camera body 7 is used to obtain the image of the bearing to be tested and send the image of the bearing to be tested to the controller.

[0023] The controller is also used to obtain the projection image of the bearing to be tested and the front structural image of the bearing to be tested according to the received image of the bearing to be tested, and obtain the number of rolling elements of the bearing to be tested according to the projection image of the bearing to be tested and the front structural image of the bearing to be tested. Specifically, the projection image is used for accurate analysis of the size, and the front structural image is used to analyze whether the product structure is bad or defective; the high-brightness backlight is used to provide an absolutely parallel light source.

[0024] Furthermore, the camera body 7 is a high-precision camera, and the lens of the camera body 7 is a high-magnification double-sided telecentric lens. Specifically, the high-precision camera is a 12-megapixel high-precision camera, and the high-magnification double-sided telecentric lens is used to control the product distortion rate below 0.01% while imaging.

[0025] Furthermore, the support rod is provided with an adjusting knob 5 , and the adjusting knob 5 is used to adjust the height of the camera body 7 .

[0026] Furthermore, the sorting mechanism comprises a plurality of air blowing devices, the position of each air blowing device corresponds to a sorting channel, and each air blowing device is used to blow the bearing to be tested into the corresponding sorting channel.

[0027] Furthermore, the controller is a PLC controller. Specifically, the PLC controller controls the image acquisition mechanism to acquire the image of the bearing to be tested, obtains the number of rolling elements of the bearing to be tested according to the image of the bearing to be tested, and controls the sorting mechanism to sort the bearing to be tested according to the number of rolling elements of the bearing to be tested.

Claims

1. An automatic detection device for the number of rolling elements of a bearing, characterized in that: It comprises a cabinet (1), a feeding mechanism, a rotating mechanism, an image acquisition mechanism, a position sensor, a controller, a sorting mechanism and a sorting box (10); The feeding mechanism, the rotating mechanism, the position sensor (6), the image acquisition mechanism and the sorting mechanism are fixed on the top of the cabinet, and the controller is arranged inside the cabinet; The output port of the bearing to be tested of the feeding mechanism is close to the rotating mechanism, and the feeding mechanism is used to transfer the bearing to be tested to the rotating mechanism; The rotating mechanism is used to carry the bearing to be tested so that the bearing to be tested rotates along with the rotating mechanism; the image acquisition device is located above the rotating mechanism, and the position sensor (6) is fixed at a set position. When the bearing to be tested rotates along with the rotating mechanism and passes through the position sensor (6), the position sensor (6) outputs position information to the controller; When the controller receives the position information, it controls the image acquisition device to obtain the image of the bearing to be tested on the rotating mechanism and sends it to the controller; the sorting box (10) comprises a plurality of sorting channels; the controller is used to obtain the number of rolling elements of the bearing to be tested according to the image of the bearing to be tested, and the controller is also used to control the sorting mechanism to sort the bearing to be tested to the corresponding sorting channel according to the number of rolling elements of the bearing to be tested.

2. The automatic detection device for the number of rolling elements of a bearing according to claim 1 is characterized in that: The loading mechanism comprises a conveying device (2) and a baffle (3); the baffle (3) is arranged above the conveying device and is used to change the transmission route of the bearing to be tested on the conveying device and transmit the bearing to be tested to the rotating mechanism.

3. The automatic detection device for the number of rolling elements of a bearing according to claim 1 is characterized in that: The rotating mechanism comprises a motor, a reducer, a tray and a rotating disk (9); the motor output shaft is connected to the reducer input shaft, the reducer output shaft is connected to the tray, and the reducer drives the tray to rotate; the rotating disk (9) is located above the tray and is fixedly connected to the tray; the rotating disk (9) is used to carry the bearing to be tested so that the bearing to be tested rotates along with the rotating disk (9).

4. The automatic detection device for the number of rolling elements of a bearing according to claim 3 is characterized in that: The rotating disk (9) is a circular ring made of glass.

5. The automatic detection device for the number of rolling elements of a bearing according to claim 1 is characterized in that: The image acquisition mechanism comprises a support rod (4), a camera body (7) and a backlight (8); the camera body (7) is arranged at the top end of the support rod (4) and is located above the rotating mechanism; the backlight is located directly below the camera body (7) and is fixedly connected to the cabinet (1); the backlight (8) and the camera body (7) are symmetrically arranged at the upper and lower sides of the rotating mechanism, and the backlight (8) is used to provide a parallel light source; the camera body (7) is used to obtain a bearing image of a bearing to be tested, and send the bearing image to be tested to a controller.

6. The automatic detection device for the number of rolling elements of a bearing according to claim 5 is characterized in that: The controller is also used to obtain a projection image of the bearing to be tested and a front structural image of the bearing to be tested according to the received image of the bearing to be tested, and to obtain the number of rolling elements of the bearing to be tested according to the projection image of the bearing to be tested and the front structural image of the bearing to be tested.

7. The automatic detection device for the number of rolling elements of a bearing according to claim 5 is characterized in that: The camera body (7) is a high-precision camera, and the lens of the camera body (7) is a high-magnification double-sided telecentric lens.

8. The automatic detection device for the number of rolling elements of a bearing according to claim 5 is characterized in that: The support rod is provided with an adjusting knob (5), and the adjusting knob (5) is used to adjust the height of the camera body (7).

9. The automatic detection device for the number of rolling elements of a bearing according to claim 1 is characterized in that: The sorting mechanism comprises a plurality of air blowing devices, the position of each air blowing device corresponds to a sorting channel, and each air blowing device is used to blow the bearing to be tested into the corresponding sorting channel.

10. The automatic detection device for the number of rolling elements of a bearing according to claim 1, characterized in that: The controller is a PLC controller.

Images