A rear axle toe angle measuring device

Abstract

This utility model belongs to the field of automotive parts testing technology, specifically relating to a rear axle toe-in angle measuring device. It includes a frame, on which positioning components and measuring components are mounted. Two sets of positioning components are symmetrically arranged on the frame. Each positioning component includes a positioning drive cylinder, movably mounted on the frame, with a pipe-end positioning pin connected to the piston rod end of the cylinder. Similarly, two sets of measuring components are symmetrically arranged on the frame. Each measuring component includes a pin-driven cylinder, movably mounted on the frame, with a measuring positioning pin connected to the piston rod end of the cylinder. The measuring component also includes an angle sensor. This utility model reduces the tediousness of manual measurement, improves inspection efficiency, reduces the labor intensity of personnel, and avoids the risk of missed inspections.

Description

Technical Field

[0001] This utility model relates to a rear axle toe-in angle measuring device, belonging to the field of automotive parts testing technology. Background Technology

[0002] In the vehicle manufacturing industry, the toe-out camber angle of the rear axle assembly is a critical positioning parameter, and its accuracy directly affects the overall vehicle's driving and safety performance. During vehicle operation, if the rear axle toe-out camber angle deviates from its tolerance, it can lead to serious quality problems such as systemic vehicle pull, abnormal tire wear, and steering wheel shimmy, while also significantly reducing tire lifespan. Therefore, the toe-out camber angle of the rear axle assembly needs to be inspected during vehicle assembly or maintenance. Current inspection methods primarily rely on worker measurements, which carries the risk of missed inspections and the occasional mixing of out-of-tolerance parts with qualified products. Furthermore, existing inspection processes depend on manual operation, including positioning, measurement, and reading, which not only increases the labor intensity for operators but also increases the possibility of measurement errors. Utility Model Content

[0003] This invention addresses the aforementioned shortcomings of the prior art by providing a rear axle toe-in angle measuring device.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A rear axle toe-in angle measuring device includes a frame, on which a positioning component and a measuring component are provided. Two sets of positioning components are symmetrically arranged on the frame. Each positioning component includes a positioning drive cylinder, which is movably mounted on the frame. The piston rod end of the positioning drive cylinder is connected to a tube end positioning pin. Two sets of measuring components are symmetrically arranged on the frame. Each measuring component includes a pin drive cylinder, which is movably mounted on the frame. The piston rod end of the pin drive cylinder is connected to a measuring positioning pin. The measuring component also includes an angle sensor.

[0005] The beneficial effects of this utility model are as follows: This utility model provides a rear axle toe angle measuring device, which can be installed on an assembly line. It can use a robotic arm to grasp the rear axle assembly and place it on a frame. The sleeve of the rear axle assembly is positioned by a positioning component, and the rear axle rear end plate is positioned by a measuring positioning pin of the measuring component. The rear axle toe angle is comprehensively detected by an angle sensor. This reduces the tediousness of manual measurement, improves inspection efficiency, reduces the labor intensity of personnel, and avoids the risk of missed detection.

[0006] Based on the above technical solution, the present invention can be further improved as follows:

[0007] Furthermore, the measuring assembly also includes a measuring slide plate, which is movably mounted on the frame. The measuring slide plate is provided with a measuring mounting base, and the pin drive cylinder and the angle sensor are mounted on the measuring mounting base.

[0008] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: By mounting the pin-driven cylinder and angle sensor on the measuring slide and measuring mounting base, the rear axle assembly can be measured more flexibly, adapting to different specifications of rear axles and improving the versatility and practicality of the measuring device. The design of the measuring slide and measuring mounting base makes the installation and adjustment of the pin-driven cylinder and angle sensor more convenient, which is conducive to quickly adapting to different needs of the production line and further improving measurement efficiency and accuracy.

[0009] Furthermore, the measuring assembly also includes a measuring movement cylinder for driving the measuring slide plate to move. The measuring movement cylinder is mounted on the frame, and the piston rod end of the measuring movement cylinder is connected to the measuring slide plate.

[0010] The beneficial effect of adopting the above-mentioned further technical solution is that by driving the movement of the measuring slide plate with the measuring cylinder, the position of each component on the measuring slide plate can be controlled more precisely, thereby ensuring the accuracy of the measurement.

[0011] Furthermore, a measuring slide rail is installed on the frame, and the measuring slide plate is slidably mounted on the measuring slide rail.

[0012] The beneficial effects of adopting the above-mentioned further technical solutions are: by installing the measuring slide plate on the measuring slide rail, the measuring slide plate becomes more stable during movement and is less prone to deviation or shaking, which further improves the accuracy and stability of the measurement. The design of the measuring slide rail also makes the movement of the measuring slide plate smoother, reduces friction and resistance, and helps to improve measurement efficiency.

[0013] Furthermore, the angle sensor is provided in multiple forms.

[0014] The beneficial effects of adopting the above-mentioned further technical solutions are: by setting multiple angle sensors, the rear axle toe angle can be measured from multiple angles, thereby obtaining more comprehensive and accurate measurement data. This helps improve the reliability and accuracy of the measurement, providing stronger support for the quality control of the rear axle assembly.

[0015] Furthermore, the positioning component includes a positioning slide plate, which is movably mounted on the frame. The positioning slide plate is provided with a positioning mounting seat, and the positioning drive cylinder is mounted on the positioning mounting seat.

[0016] The beneficial effects of adopting the above-mentioned further technical solutions are: by installing the positioning drive cylinder through the positioning slide and positioning mounting seat, the rear axle assembly can be positioned more flexibly, adapting to different specifications of rear axles, and improving the versatility and practicality of the measuring device.

[0017] Furthermore, the positioning component also includes a positioning cylinder for driving the positioning slide plate to move. The positioning cylinder is mounted on the frame, and the piston rod end of the positioning cylinder is connected to the positioning slide plate.

[0018] The beneficial effects of adopting the above-mentioned further technical solutions are: by driving the movement of the positioning slide plate with the positioning cylinder, the position of each component on the positioning slide plate can be controlled more precisely, thereby ensuring the accuracy of positioning. It can also make the positioning process more automated, further reducing the tediousness of manual operation and improving the overall measurement efficiency.

[0019] Furthermore, a positioning slide rail is installed on the frame, and the positioning slide plate is slidably installed on the positioning slide rail.

[0020] The beneficial effect of adopting the above-mentioned further technical solutions is that by installing the positioning slide plate through the positioning slide rail, the stability and accuracy of the positioning slide plate during movement can be ensured.

[0021] Furthermore, the piston rod end of the positioning cylinder is connected to a drive connecting plate, and the end of the drive connecting plate is fixedly connected to the positioning slide plate.

[0022] The beneficial effects of adopting the above-mentioned further technical solution are: by connecting the piston rod of the positioning cylinder and the positioning slide plate through the drive connecting plate, the driving force of the positioning cylinder can be transmitted to the positioning slide plate more evenly, thereby further improving the stability and accuracy of positioning. At the same time, it also enhances the structural strength of the positioning component, making the entire measuring device more robust and durable. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention from one angle;

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention from angle two.

[0025] The reference numerals in the attached diagram are as follows: 1. Frame; 2. Positioning assembly; 21. Positioning moving cylinder; 22. Positioning drive cylinder; 23. Positioning slide plate; 24. Positioning slide rail; 25. Drive connecting plate; 26. Positioning mounting base; 3. Measuring assembly; 31. Measuring moving cylinder; 32. Measuring positioning pin; 33. Angle sensor; 34. Measuring slide rail; 35. Measuring slide plate; 36. Pin drive cylinder; 37. Measuring mounting base. Detailed Implementation

[0026] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0027] See Figures 1-2 A rear axle toe-in angle measuring device includes a frame 1, on which a positioning component 2 and a measuring component 3 are provided.

[0028] Two sets of positioning components 2 are symmetrically arranged on the frame 1. Positioning components 2 include a positioning drive cylinder 22, a positioning slide plate 23, and a positioning moving cylinder 21. The positioning slide plate 23 is movably mounted on the frame 1. Specifically, a positioning slide rail 24 is mounted on the frame 1, and the positioning slide plate 23 is slidably mounted on the positioning slide rail 24. A positioning mounting seat 26 is provided on the positioning slide plate 23, and the positioning drive cylinder 22 is mounted on the positioning mounting seat 26. A pipe end positioning pin is connected to the end of the piston rod of the positioning drive cylinder 22, and the pipe end positioning pin is used to position the sleeve end of the rear axle assembly. The positioning moving cylinder 21 is mounted on the frame 1, and the end of the piston rod of the positioning moving cylinder 21 is connected to the positioning slide plate 23. Specifically, a drive connecting plate 25 is connected to the end of the piston rod of the positioning moving cylinder 21, and the end of the drive connecting plate 25 is fixedly connected to the positioning slide plate 23.

[0029] Two sets of measuring components 3 are symmetrically arranged on the frame 1. Each measuring component 3 includes a pin-driven cylinder 36, a measuring slide plate 35, an angle sensor 33, and a measuring movement cylinder 31. The measuring slide plate 35 is movably mounted on the frame 1. Specifically, a measuring slide rail 34 is mounted on the frame 1, and the measuring slide plate 35 is slidably mounted on the measuring slide rail 34. A measuring mounting seat 37 is provided on the measuring slide plate 35, and the pin-driven cylinder 36 and the angle sensor 33 are mounted on the measuring mounting seat 37. A measuring positioning pin 32 is connected to the piston rod end of the pin-driven cylinder 36. The measuring movement cylinder 31 is mounted on the frame 1, and the piston rod end of the measuring movement cylinder 31 is connected to the measuring slide plate 35. Specifically, in this embodiment, multiple angle sensors 33 are provided, and the rear axle toe angle is measured in multiple directions using these multiple angle sensors 33.

[0030] The operation process of this utility model is as follows:

[0031] First, the rear axle assembly is placed on frame 1, and initial positioning of the rear axle assembly can be performed using a robotic arm or other automated device. Then, positioning assembly 2 is activated; specifically, positioning moving cylinder 21 is activated. The piston rod of positioning moving cylinder 21 drives positioning slide plate 23 to move along positioning slide rail 24, aligning positioning drive cylinder 22 and its connected tube end positioning pin with the sleeve end of the rear axle assembly. Next, the piston rod of positioning drive cylinder 22 extends, pushing the tube end positioning pin into the sleeve of the rear axle assembly, thus precisely positioning the rear axle assembly.

[0032] After positioning is completed, the measuring assembly 3 is activated. Specifically, the measuring moving cylinder 31 is activated, and the piston rod of the measuring moving cylinder 31 drives the measuring slide plate 35 to move along the measuring slide rail 34, so that the pin drive cylinder 36 and its connected measuring positioning pin 32 are aligned with the positioning hole of the rear end plate of the rear axle assembly. Then, the piston rod of the pin drive cylinder 36 extends, pushing the measuring positioning pin 32 to position the rear end plate of the rear axle assembly.

[0033] After the positioning pin 32 positions the rear axle assembly rear end plate, the rear axle assembly is now fixed and in a unique position. Multiple angle sensors 33 then begin operating to measure the rear axle toe angle from multiple angles. The angle sensors 33 transmit the measurement data to the control system, which processes and analyzes the data. By calculating the displacement difference, the control system converts the toe-out camber angle of the current rear axle assembly to obtain an accurate value.

[0034] Finally, based on the measurement results, determine whether the toe-out camber angle of the rear axle assembly meets the requirements. If it does, the rear axle assembly is qualified; if it does not, adjustment or replacement is required.

[0035] This utility model's rear axle toe-in angle measuring device achieves rapid and accurate measurement of the rear axle assembly's toe-in camber angle through mechanization and automation, greatly improving measurement efficiency and accuracy, reducing the labor intensity of operators, avoiding the risk of missed detections, and providing strong technical support for automobile manufacturing and maintenance.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rear axle toe angle measuring device comprising a frame (1), characterized in that, The frame (1) is provided with a positioning component (2) and a measuring component (3). The positioning component (2) is symmetrically arranged in two sets on the frame (1). The positioning component (2) includes a positioning drive cylinder (22). The positioning drive cylinder (22) is movably mounted on the frame (1). The piston rod end of the positioning drive cylinder (22) is connected to a tube end positioning pin. The measuring component (3) is symmetrically arranged in two sets on the frame (1). The measuring component (3) includes a pin drive cylinder (36). The pin drive cylinder (36) is movably mounted on the frame (1). The piston rod end of the pin drive cylinder (36) is connected to a measuring positioning pin (32). The measuring component (3) also includes an angle sensor (33).

2. The rear axle toe-in angle measuring device according to claim 1, characterized in that, The measuring component (3) further includes a measuring slide plate (35), which is movably mounted on the frame (1). A measuring mounting base (37) is provided on the measuring slide plate (35), and the pin drive cylinder (36) and the angle sensor (33) are mounted on the measuring mounting base (37).

3. The rear axle toe-in angle measuring device according to claim 2, characterized in that, The measuring assembly (3) further includes a measuring moving cylinder (31) that drives the measuring slide plate (35) to move. The measuring moving cylinder (31) is mounted on the frame (1), and the piston rod end of the measuring moving cylinder (31) is connected to the measuring slide plate (35).

4. The rear axle toe-in angle measuring device according to claim 3, characterized in that, The frame (1) is equipped with a measuring slide rail (34), and the measuring slide plate (35) is slidably mounted on the measuring slide rail (34).

5. The rear axle toe-in angle measuring device according to claim 1, characterized in that, The angle sensor (33) is provided in multiple forms.

6. The rear axle toe-in angle measuring device according to claim 5, characterized in that, The positioning component (2) includes a positioning slide plate (23), which is movably mounted on the frame (1). The positioning slide plate (23) is provided with a positioning mounting seat (26), and the positioning drive cylinder (22) is mounted on the positioning mounting seat (26).

7. The rear axle toe-in angle measuring device according to claim 6, characterized in that, The positioning component (2) further includes a positioning cylinder (21) for driving the positioning slide plate (23) to move. The positioning cylinder (21) is mounted on the frame (1), and the piston rod end of the positioning cylinder (21) is connected to the positioning slide plate (23).

8. The rear axle toe-in angle measuring device according to claim 7, characterized in that, The frame (1) is equipped with a positioning slide rail (24), and the positioning slide plate (23) is slidably mounted on the positioning slide rail (24).

9. The rear axle toe-in angle measuring device according to claim 7, characterized in that, The piston rod end of the positioning cylinder (21) is connected to a drive connecting plate (25), and the end of the drive connecting plate (25) is fixedly connected to the positioning slide plate (23).

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