Automobile Wheel Rim Detection Bench

Abstract

Automobile wheel rim detection platform, characterized in that: the horizontal axis is installed on the horizontal axis support frame, and a bevel gear I is installed at its front end; the vertical axis is installed on the vertical axis support frame, and a bevel gear II is installed at its bottom end; the vertical axis support frame is successively installed with a face bearing I, a platform, a face bearing II, a synchronous sprocket, a face bearing III, and a synchronous frame from bottom to top, and the upper end of the vertical axis is matched with the synchronous sprocket through a profile to drive its rotation; the swing rods are evenly distributed on the synchronous frame and are hinged to the synchronous frame, and the rear ends thereof are placed in the chute of the synchronous sprocket; one end of the sleeve rod is provided with a square groove, and a compression spring is arranged in the groove. The sleeve rod is sleeved on the front end of the swing rod and can slide freely on the swing rod; the extension rod is installed at the other end of the sleeve rod; the limit pins I and II are respectively evenly distributed on the synchronous sprocket to limit the rotation of the synchronous sprocket relative to the synchronous frame; a background board and an industrial camera are respectively arranged on both sides of the horizontal axis support frame to take pictures of the wheel hub; the wheel hub size range adapted by the detection platform is 16 - 19 inches.

Description

Technical Field

[0001] The present invention belongs to the field of automotive component detection, and mainly relates to a detection device for the dimensions of an automotive wheel rim. Background Art

[0002] The wheel hub is an important component of an automobile. It plays a load-bearing role during vehicle driving and is crucial for ensuring the performance and safety of the entire vehicle. On the one hand, it has to bear the vertical gravity load of the vehicle itself. On the other hand, it also has to withstand various dynamic load impacts caused by factors such as starting and stopping, turning, gravel impact, and road surface unevenness during vehicle driving. Therefore, the quality of the wheel hub directly determines the safety of vehicle driving.

[0003] Currently, the detection of wheel hubs mainly includes aspects such as material chemical element composition detection, mechanical property detection, dimension detection, airtightness detection, coating quality detection, and appearance quality detection. In these detections, most detection items have corresponding dedicated equipment and detection standards.

[0004] The detection of the wheel rim of the wheel hub belongs to the category of dimension detection. According to the provisions of GB / T9769-2015 "Wheel Rim Detection", the wheel rim detection items are mainly divided into diameter part detection and contour shape part detection. The contour shape detection contents include: the width between the two flanges, the flange part, the bead seat angle, the bead seat diameter, the bead seat arc radius, the bead seat width, the bottom depth of the groove, the bottom width of the groove, and the position dimension of the groove. For the detection of these parameters, there is not only no professional detection equipment, but also only gauges can be used for detection. Therefore, the following problems will occur: (1) The accuracy of manual measurement with gauges is greatly affected by the subjectivity of the detection personnel and is not as high as that of automatic detection equipment; (2) Gauge detection is a contact detection method, so it is easy to cause gauge wear, resulting in inaccurate detection results; (3) For different types of wheel hubs, their wheel rim contour shapes and parameters are often different. Therefore, it is necessary to customize a gauge that matches the measured size for detection separately, which increases the detection cost; and when some of these dimensions need to be modified due to design or other factors, the original gauge will no longer be applicable and need to be customized again, which will further extend the overall design and manufacturing cycle of the product, thus affecting productivity and production efficiency.

[0005] In order to overcome the above disadvantages, it is necessary to design a detection device that can perform non-contact detection on the wheel rim and can adapt to the detection requirements of different sizes and shapes of wheel hubs. At the same time, in order to ensure the scientificity and accuracy of detection, it is necessary to detect the wheel rim contour at different positions. This requires that the detection device can not only adapt to different sizes and shapes of wheel hubs, but also center the wheel hub and drive it to rotate around the axis for multi-point sampling. Summary of the Invention

[0006] The purpose of the design of the present invention is to disclose a device with a simple structure that can perform non-contact detection on wheel rims of different sizes and shapes.

[0007] The technical solution of the present invention is: an automobile wheel rim detection table, including a background board, a hydraulic caliper, an industrial camera, a wheel hub, a horizontal shaft, bevel gear I, a vertical shaft, bevel gear II, a horizontal shaft support frame, a vertical shaft support frame, end face bearing I, end face bearing II, end face bearing III, a cylindrical pin, a platform, a synchronous sprocket, a synchronous frame, a swing rod, a compression spring, a sleeve rod, an extension rod, a contact wheel, limit pin I, and limit pin II. The characteristics are as follows: The horizontal shaft is installed on the horizontal shaft support frame, and bevel gear I is installed at its front end; the vertical shaft is installed on the vertical shaft support frame, and bevel gear II is installed at its bottom end, and bevel gear I meshes with bevel gear II; the horizontal shaft support frame and the vertical shaft support frame are fixed by a cylindrical pin, and the vertical shaft support frame is successively installed with end face bearing I, a platform, end face bearing II, a synchronous sprocket, end face bearing III, and a synchronous frame from bottom to top; end face bearing I is installed between the vertical shaft support frame and the platform, enabling the platform to rotate freely relative to the vertical shaft support frame; end face bearing II is installed between the platform and the synchronous sprocket, enabling the synchronous sprocket to rotate freely relative to the platform; end face bearing III is installed between the synchronous sprocket and the synchronous frame, enabling the synchronous frame to rotate freely relative to the synchronous sprocket; the feet of the synchronous frame are inserted into the platform and rotate synchronously with the platform; the upper end of the vertical shaft is matched with the synchronous sprocket through a profile to drive the synchronous sprocket to rotate.

[0008] The described automobile wheel rim detection table is characterized in that: the swing rods are evenly distributed on the synchronous frame and are hinged to the synchronous frame, and their rear ends are placed in the chute of the synchronous sprocket; one end of the sleeve rod is provided with a square groove, and a compression spring is arranged in the groove. The sleeve rod is sleeved on the front end of the swing rod and can slide freely on the swing rod; the extension rod is installed at the other end of the sleeve rod and can be installed at different positions according to the size of the wheel hub, and the contact wheel is installed on the extension rod.

[0009] The described automobile wheel rim detection table is characterized in that: limit pin I and limit pin II are respectively evenly distributed on the synchronous sprocket to limit the rotation of the synchronous sprocket relative to the synchronous frame.

[0010] The described automobile wheel rim detection table is characterized in that: a background board and an industrial camera are respectively arranged on both sides of the horizontal shaft support frame to take pictures of the wheel hub; a hydraulic caliper is installed on the background board to brake the platform.

[0011] The described automobile wheel rim detection table is characterized in that: the range of wheel hub sizes adapted by the automobile wheel rim detection table is 16 - 19 inches.

[0012] Before processing, the swing rod is in a tightened state, and the hydraulic circuit of the hydraulic caliper is connected to low pressure to brake the platform. When the hub is placed on the platform, the horizontal shaft rotates and drives the vertical shaft to rotate through bevel gear I and bevel gear II. The vertical shaft drives the synchronous sprocket to rotate. Through the rotation of the synchronous sprocket, the swing rod gradually opens until it abuts against the inner wall of the hub to complete centering. The synchronous sprocket continues to rotate until the limit pin II contacts the synchronous frame and drives the synchronous frame and the platform to rotate together against the low-pressure braking force of the hydraulic caliper. At the same time, the hydraulic circuit of the hydraulic caliper is depressurized and no longer brakes the platform. At this time, centering of the hub is completed and it is driven to rotate.

[0013] After the platform rotates a certain angle, the horizontal shaft stops rotating, and the hydraulic circuit of the hydraulic caliper is connected to high pressure to make the hydraulic caliper brake the platform. At this time, the industrial camera takes pictures of the wheel rim of the hub, and the background computer processes the collected images to obtain the specific values of the measured dimensions. Repeating the above actions several times can measure the same dimension multiple times to determine whether the requirements are met.

[0014] After the detection is completed, the hydraulic circuit of the hydraulic caliper is connected to low pressure, and the horizontal shaft rotates in the reverse direction to drive the synchronous sprocket to rotate in the reverse direction. The swing rod gradually retracts under the drive of the synchronous sprocket. When the synchronous sprocket rotates to the limit pin I contacting the synchronous frame, it drives the synchronous frame and the platform to rotate together. At this time, the horizontal shaft stops rotating, and the hydraulic circuit of the hydraulic caliper is connected to high pressure to brake the platform, and the swing rod returns to the initial state before detection. Remove the measured hub and repeat the above actions to detect the next hub.

[0015] When the hydraulic circuit of the hydraulic caliper is connected to low pressure, its braking torque must be less than the driving torque of the horizontal shaft to ensure that the synchronous sprocket can drive the platform to rotate together. When the hydraulic circuit of the hydraulic caliper is connected to high pressure, its braking torque must ensure that the platform can stop rotating immediately.

[0016] The advantages and positive effects of the present invention are as follows: This detection bench uses an industrial camera to take pictures of the contour of the wheel rim of the hub, and processes the captured images to obtain the data of the wheel rim contour and related measured dimensions to detect whether the wheel rim meets the requirements. In addition, through reasonable design of the synchronous sprocket, swing rod, sleeve rod, and extension rod, the detection bench can perform centering and driving operations on hubs of different sizes, thus meeting the requirements for detecting hubs of different sizes and different wheel rim shapes. Since non-contact measurement is adopted, the use and consumption of gauges can be greatly reduced, and at the same time, the measurement of different circumferential positions of the same hub can improve the accuracy of detection. Description of the Drawings

[0017] Figure 1 It is a schematic layout diagram of the detection bench equipment

[0018] Figure 2It is a sectional view taken along A-A, showing the positions of the swing rod, sleeve rod, extension rod, and contact wheel after placing the hub.

[0019] Figure 3 It is the inspection before placing the hub, showing the positions of the swing rod, sleeve rod, extension rod, and contact wheel.

[0020] Figure 4 It is a sectional view taken along B-B, showing the schematic diagram of the inspection table structure.

[0021] Figure 5 It is the positions of the swing rod, compression spring, sleeve rod, and extension rod when inspecting a 16-inch hub.

[0022] Figure 6 It is the positions of the swing rod, compression spring, sleeve rod, and extension rod when inspecting a 17-inch hub.

[0023] Figure 7 It is the positions of the swing rod, compression spring, sleeve rod, and extension rod when inspecting an 18-inch hub.

[0024] Figure 8 It is the positions of the swing rod, compression spring, sleeve rod, and extension rod when inspecting a 19-inch hub.

[0025] In the figure: 1 Background board; 2 Hydraulic caliper; 3 Industrial camera; 4 Hub; 5 Horizontal axis; 6 Bevel gear I; 7 Vertical axis; 8 Bevel gear II; 9 Horizontal axis support frame; 10 Vertical axis support frame; 11 End face bearing I; 12 End face bearing II; 13 End face bearing III; 14 Cylindrical pin; 15 Platform; 16 Synchronous sprocket; 17 Synchronous frame; 18 Swing rod; 19 Compression spring; 20 Sleeve rod; 21 Extension rod; 22 Contact wheel; 23 Limit pin I; 24 Limit pin II Detailed implementation manners

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Automobile wheel hub rim inspection bench, including a background board 1, a hydraulic caliper 2, an industrial camera 3, a wheel hub 4, a horizontal shaft 5, bevel gear I 6, a vertical shaft 7, bevel gear II 8, a horizontal shaft support frame 9, a vertical shaft support frame 10, end face bearing I 11, end face bearing II 12, end face bearing III 13, a cylindrical pin 14, a platform 15, a synchronous sprocket 16, a synchronous frame 17, a swing rod 18, a compression spring 19, a sleeve rod 20, an extension rod 21, a contact wheel 22, a limit pin I 23, a limit pin II 24, characterized in that: the horizontal shaft 5 is installed on the horizontal shaft support frame 9, and bevel gear I 6 is installed at its front end; the vertical shaft 7 is installed on the vertical shaft support frame 10, and bevel gear II 8 is installed at its bottom end, and bevel gear I 6 meshes with bevel gear II 8; the horizontal shaft support frame 9 and the vertical shaft support frame 10 are fixed by a cylindrical pin 14, and the vertical shaft support frame 10 is successively installed with end face bearing I 11, a platform 15, end face bearing II 12, a synchronous sprocket 16, end face bearing III 13, and a synchronous frame 17 from bottom to top; end face bearing I 11 is installed between the vertical shaft support frame 10 and the platform 15, enabling the platform 15 to rotate freely relative to the vertical shaft support frame 10; end face bearing II 12 is installed between the platform 15 and the synchronous sprocket 16, enabling the synchronous sprocket 16 to rotate freely relative to the platform 15; end face bearing III 13 is installed between the synchronous sprocket 16 and the synchronous frame 17, enabling the synchronous frame 17 to rotate freely relative to the synchronous sprocket 16; the feet of the synchronous frame 17 are inserted into the platform 15 and rotate synchronously with the platform 15; the upper end of the vertical shaft 7 is matched with the synchronous sprocket 16 through a profile to drive the synchronous sprocket 16 to rotate (as Figure 4 shown).

[0028] The described automobile wheel hub rim inspection bench is characterized in that: swing rods 18 are evenly distributed on the synchronous frame 17 and are hinged to the synchronous frame 17, and their rear ends are placed in the chute of the synchronous sprocket 16; one end of the sleeve rod 20 is provided with a square groove, and a compression spring 19 is arranged in the groove. The sleeve rod 20 is sleeved on the front end of the swing rod 18 and can slide freely on the swing rod 18; the extension rod 21 is installed at the other end of the sleeve rod 20 and can be installed at different positions according to the size of the wheel hub 4, and the contact wheel 22 is installed on the extension rod 21.

[0029] The described automobile wheel hub rim inspection bench is characterized in that: limit pins I 23 and limit pins II 24 are respectively evenly distributed on the synchronous sprocket 16 to limit the rotation of the synchronous sprocket 16 relative to the synchronous frame 17 (as Figure 3 shown).

[0030] The described automobile wheel hub rim inspection bench is characterized in that: a background board 1 and an industrial camera 3 are respectively arranged on both sides of the horizontal shaft support frame 9 to take pictures of the wheel hub 4; a hydraulic caliper 2 is installed on the background board 1 to brake the platform 15.

[0031] The described automobile wheel hub rim inspection bench is characterized in that: the wheel hub size range adapted by the automobile wheel hub rim inspection bench is 16 - 19 inches.

[0032] Before processing, the swing rod 18 is in a tightened state (as Figure 3 shown), and the hydraulic circuit of the hydraulic caliper 2 is connected to low pressure to brake the platform 15; when the hub 4 is placed on the platform, the horizontal shaft 5 rotates and drives the vertical shaft 7 to rotate through the bevel gear I 6 and the bevel gear II 8, the vertical shaft 7 drives the synchronous sprocket 16 to rotate, and through the rotation of the synchronous sprocket 16, the swing rod 18 gradually opens until it abuts against the inner wall of the hub 4 to complete centering (as Figure 2 shown); the synchronous sprocket 16 continues to rotate until the limit pin II 24 contacts the synchronous frame 17 and drives the synchronous frame 17 and the platform 15 to rotate together against the low-pressure braking force of the hydraulic caliper 2, and at the same time, the hydraulic circuit of the hydraulic caliper 2 is depressurized and no longer brakes the platform 15; at this time, centering of the hub 4 is completed and it is driven to rotate.

[0033] After the platform 15 rotates a certain angle, the horizontal shaft 5 stops rotating, and the hydraulic circuit of the hydraulic caliper 2 is connected to high pressure to make the hydraulic caliper 2 brake the platform 15. At this time, the industrial camera 3 takes a picture of the rim of the hub 4, and the background computer processes the collected image to obtain the specific value of the measured dimension; repeating the above actions several times can measure the same dimension multiple times to determine whether the requirements are met.

[0034] After the detection is completed, the hydraulic circuit of the hydraulic caliper 2 is connected to low pressure, the horizontal shaft 5 rotates in the reverse direction to drive the synchronous sprocket 16 to rotate in the reverse direction, and the swing rod 18 gradually retracts under the drive of the synchronous sprocket 16; when the synchronous sprocket 16 rotates to the limit pin I 23 contacts the synchronous frame 17, it drives the synchronous frame 17 and the platform 15 to rotate together. At this time, the horizontal shaft 5 stops rotating, and the hydraulic circuit of the hydraulic caliper 2 is connected to high pressure to brake the platform 15, and the swing rod 18 returns to the initial state before detection (as Figure 3 shown); remove the measured hub 4 and repeat the above actions to detect the next one.

[0035] When the hydraulic circuit of the hydraulic caliper 2 is connected to low pressure, its braking torque must be less than the driving torque of the horizontal shaft 5 to ensure that the synchronous sprocket 16 can drive the platform 15 to rotate together; when the hydraulic circuit of the hydraulic caliper 2 is connected to high pressure, its braking torque must ensure that the platform 15 can stop rotating immediately.

[0036] When detecting a 16-inch hub, the extension rod 21 is installed at the inner edge of the sleeve rod 20, and during the process of centering the hub 4, the sleeve rod 20 slides on the swing rod 18 and compresses the compression spring 19 (as Figure 5 shown), until the limit pin II 24 contacts the synchronous frame 17; when detecting a 17-inch hub, the extension rod 21 is installed at the inner edge of the sleeve rod 20, and during the process of centering the hub 4, the sleeve rod 20 does not slide relative to the swing rod 18 (as Figure 6As shown); when detecting an 18-inch wheel hub, the extension rod 21 is installed at the outer edge of the sleeve rod 20, and during the process of centering the wheel hub 4, the sleeve rod 20 slides on the swing rod 18 and compresses the compression spring 19 (as Figure 7 shown); when detecting a 19-inch wheel hub, the extension rod 21 is installed at the outer edge of the sleeve rod 20, and during the process of centering the wheel hub 4, the sleeve rod 20 does not slide relative to the swing rod 18 (as Figure 8 shown); when wheels of the same size have different inner diameters due to different models, the swing rod 18, the compression spring 19, the sleeve rod 20, and the extension rod 21 can also complete the centering and driving of the wheel hub.

Claims

1. Automobile wheel hub rim detection bench, including background board (1), hydraulic caliper (2), industrial camera (3), wheel hub (4), horizontal axis (5), bevel gear I (6), vertical axis (7), bevel gear II (8), horizontal axis support frame (9), vertical axis support frame (10), end face bearing I (11), end face bearing II (12), end face bearing III (13), cylindrical pin (14), platform (15), synchronous sprocket (16), synchronous frame (17), swing rod (18), compression spring (19), sleeve rod (20), extension rod (21), contact wheel (22), limit pin I (23), limit pin II (24). Its characteristics are: The horizontal axis (5) is installed on the horizontal axis support frame (9), and a bevel gear I (6) is installed at its front end; the vertical axis (7) is installed on the vertical axis support frame (10), and a bevel gear II (8) is installed at its bottom end. The bevel gear I (6) meshes with the bevel gear II (8); the horizontal axis support frame (9) and the vertical axis support frame (10) are fixed by a cylindrical pin (14). The vertical axis support frame (10) is successively installed with an end face bearing I (11), a platform (15), an end face bearing II (12), a synchronous sprocket (16), an end face bearing III (13), and a synchronous frame (17) from bottom to top; the end face bearing I (11) is installed between the vertical axis support frame (10) and the platform (15), enabling the platform (15) to rotate freely relative to the vertical axis support frame (10); the end face bearing II (12) is installed between the platform (15) and the synchronous sprocket (16), enabling the synchronous sprocket (16) to rotate freely relative to the platform (15); the end face bearing III (13) is installed between the synchronous sprocket (16) and the synchronous frame (17), enabling the synchronous frame (17) to rotate freely relative to the synchronous sprocket (16); the feet of the synchronous frame (17) are inserted on the platform (15) and rotate synchronously with the platform (15); the upper end of the vertical axis (7) is matched with the synchronous sprocket (16) through a profile to drive the synchronous sprocket (16) to rotate. The swing rods (18) are evenly distributed on the synchronous frame (17) and are hinged to the synchronous frame (17), and their rear ends are placed in the chute of the synchronous sprocket (16); one end of the sleeve rod (20) is provided with a square groove, and a compression spring (19) is arranged in the groove. The sleeve rod (20) is sleeved on the front end of the swing rod (18) and can slide freely on the swing rod (18); the extension rod (21) is installed at the other end of the sleeve rod (20) and can be installed at different positions according to the size of the wheel hub (4), and the contact wheel (22) is installed on the extension rod (21). The limit pins I (23) and limit pins II (24) are respectively evenly distributed on the synchronous sprocket (16) to limit the rotation of the synchronous sprocket (16) relative to the synchronous frame (17).

2. The automobile wheel hub rim detection bench according to claim 1, Its characteristics are: The background board (1) and the industrial camera (3) are respectively arranged on both sides of the horizontal axis support frame (9) to take pictures of the wheel hub (4); a hydraulic caliper (2) is installed on the background board (1) to brake the platform (15).

3. The automobile wheel hub rim detection bench according to claim 1, Its characteristics are: When the hydraulic circuit of the hydraulic caliper (2) is under low pressure, its braking torque must be less than the driving torque of the cross shaft (5) to ensure that the synchronous sprocket (16) can drive the platform (15) to rotate together; when the hydraulic circuit of the hydraulic caliper (2) is under high pressure, its braking torque must ensure that the platform (15) can stop rotating immediately.

4. The automobile hub and rim inspection bench according to claim 1, characterized in that: After the platform (15) rotates a certain angle, the cross shaft (5) stops rotating, and the hydraulic circuit of the hydraulic caliper (2) is energized with high pressure to make the hydraulic caliper (2) brake the platform (15). At this time, the industrial camera (3) takes pictures of the rim of the hub (4), and the background computer can obtain the specific value of the measured dimension after processing the collected images.

5. The automobile hub and rim inspection bench according to claim 1, characterized in that: After the inspection is completed, the hydraulic circuit of the hydraulic caliper (2) is energized with low pressure, and the cross shaft (5) rotates reversely to drive the synchronous sprocket (16) to rotate reversely, and the swing rod (18) gradually retracts under the drive of the synchronous sprocket (16); when the synchronous sprocket (16) rotates to contact the limit pin I (23) with the synchronous frame (17), it drives the synchronous frame (17) and the platform (15) to rotate together. At this time, the cross shaft (5) stops rotating, and the hydraulic circuit of the hydraulic caliper (2) is energized with high pressure to brake the platform (15), and the swing rod (18) returns to the initial state before the inspection.

6. The automobile hub and rim inspection bench according to claim 1, characterized in that: The size range of the hub (2) adapted by the automobile hub and rim inspection bench is 16 - 19 inches.

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