Railway wagon brake valve spring automatic detection system

Abstract

The utility model relates to the technical field of railway wagon part detection, in particular to an automatic detection system for a brake valve spring of a railway wagon. Comprising a claw clamping robot assembly, a workbench assembly, spring testers and a spring tester control cabinet, the claw clamping robot assembly and the workbench assembly are arranged adjacently, the two spring testers are symmetrically arranged on the two sides of the claw clamping robot assembly, and the spring tester control cabinet is electrically connected with the claw clamping robot assembly and the spring testers. The detection system provides a new spring detection technology with the functions of automatic identification, intelligent detection and data driving. The device is mainly applied to the automatic detection of the brake valve spring of the railway freight car.

Description

Technical Field

[0001] This utility model relates to the field of railway freight car parts inspection technology, and more specifically, to an automatic inspection system for railway freight car brake valve springs. Background Technology

[0002] As a core functional component of the brake valve control system, the mechanical performance parameters of the railway freight car brake valve spring directly determine the brake valve's response sensitivity, pressure regulation accuracy, and overall service reliability. With the railway transportation system developing towards heavier loads and higher speeds, the testing technology for brake valve springs faces the challenge of achieving higher precision and efficiency.

[0003] Currently, the testing of brake valve springs in railway freight cars mainly relies on micro-controlled spring testers. This process requires manually placing each spring onto the tester and inputting the corresponding spring model number through the human-machine interface before starting the testing program. This testing method is not only inefficient but also labor-intensive, placing high demands on the professional skills of the operators. Railway vehicle brake valve springs come in many types and quantities; to complete the testing of all springs for a full day, operators would need to work continuously for 10 hours, resulting in high labor intensity and negatively impacting their physical and mental health. Furthermore, due to the variety of spring types, manual testing requires operators to have a thorough understanding of spring types, demanding a high level of professional expertise.

[0004] Therefore, developing a device that can automatically detect the brake valve springs of railway freight cars has become an urgent need to improve detection efficiency and reduce labor intensity. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model provides an automatic detection system for railway freight car brake valve springs. This detection system offers a new spring detection technology with automatic identification, intelligent detection, and data-driven capabilities.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An automatic detection system for brake valve springs of railway freight cars includes a gripper robot assembly, a workbench assembly, a spring tester, and a spring tester control cabinet. The gripper robot assembly is arranged adjacent to the workbench assembly. Two sets of spring testers are symmetrically arranged on both sides of the gripper robot assembly. The spring tester control cabinet is electrically connected to the gripper robot assembly and the spring testers.

[0008] The gripper robot assembly, the workbench assembly, and the spring tester are surrounded by safety railings, and the control cabinet of the spring tester is located outside the safety railings.

[0009] The gripper robot assembly includes a robot stand, a six-axis robot, and an electric gripper. The robot stand is fixedly mounted on the ground, the six-axis robot is mounted on the robot stand, and the electric gripper is mounted at the end of the six-axis robot. Both the six-axis robot and the electric gripper are electrically connected to the spring tester control cabinet.

[0010] An industrial camera is installed at the end of the six-axis robot, and the industrial camera is electrically connected to the control cabinet of the spring tester.

[0011] The workbench assembly includes a tray placement rack and a spring tray. The tray placement rack is set on the ground and has an aluminum panel frame. The spring tray is set on the aluminum panel frame and has a light source element inside the aluminum panel frame and below the tray and spring tray.

[0012] The tray placement rack is equipped with spring-loaded sorting boxes.

[0013] The upper surface of the spring tray is provided with a groove, and the two sides of the spring tray are provided with handles.

[0014] The aluminum panel frame has four sets of openings for placing spring trays.

[0015] The spring tray is made of PVC material.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This device features an automatic spring gripping function, which, in conjunction with a high-speed and stable robot, enables rapid and accurate spring loading and unloading operations, replacing the traditional manual handling of brake valve springs. Through the use of industrial cameras and light source components, the system possesses spring positioning and type recognition capabilities, eliminating the need for manual input and preventing issues such as incorrect spring selection due to insufficient human knowledge of spring types, thus achieving unmanned operation during the testing process. The spring sorting bins are designed to hold springs, with a separate area for emergency two-stage valve springs, making it more suitable for on-site valve assembly. The spring testing instrument control cabinet allows for quick viewing of the spring testing area status and the spring type status in the bins, while also monitoring the equipment's operating status. Attached Figure Description

[0018] Figure 1 This is an isometric drawing of the present invention;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a schematic diagram of the gripper robot component of this utility model;

[0021] Figure 4 This is a schematic diagram of the spring tray in this utility model;

[0022] In the diagram: 1 is the robot stand, 2 is the six-axis robot, 3 is the industrial camera, 4 is the electric gripper, 5 is the pallet rack, 6 is the aluminum panel frame, 7 is the spring tray, 8 is the handle, 9 is the spring tester, 10 is the spring sorting box, 11 is the light source element, 12 is the safety railing, and 13 is the spring tester control cabinet. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0025] like Figures 1 to 4 As shown, an automatic detection system for brake valve springs of railway freight cars includes a gripper robot assembly, a workbench assembly, a spring tester 9, and a spring tester control cabinet 13. The gripper robot assembly and the workbench assembly are arranged adjacent to each other. Two sets of spring testers 9 are symmetrically arranged on both sides of the gripper robot assembly. The spring tester control cabinet 13 is electrically connected to the gripper robot assembly and the spring testers 9, respectively.

[0026] Preferably, the gripper robot assembly, the workbench assembly, and the spring tester 9 are surrounded by a safety railing 12, and the spring tester control cabinet 13 is located outside the safety railing 12.

[0027] Preferably, the gripper robot assembly includes a robot platform 1, a six-axis robot 2, and an electric gripper 4. The robot platform 1 is fixedly mounted on the ground, the six-axis robot 2 is mounted on the robot platform 1, and the electric gripper 4 is located at the end of the six-axis robot 2. Both the six-axis robot 2 and the electric gripper 4 are electrically connected to the spring tester control cabinet 13. The six-axis robot 2 is used for picking up and storing springs, and the electric gripper 4 is used for picking up springs of different specifications.

[0028] Preferably, the six-axis robot 2 is equipped with an industrial camera 3 at its end, and the industrial camera 3 is electrically connected to the spring tester control cabinet.

[0029] Preferably, the workbench assembly includes a tray rack 5 and spring trays 7. The tray rack 5 is placed on the ground, and an aluminum panel frame 6 is mounted on the tray rack 5. The spring trays 7 are mounted on the aluminum panel frame 6, and a light source element 11 is installed inside the aluminum panel frame 6 and below the spring trays 7. Springs of different specifications are placed in the spring trays 7, and each type of spring is arranged in an orderly manner. Depending on the incoming materials from the upstream process, different specifications and quantities of springs can be placed in the four spring trays 7 respectively.

[0030] Using a backlight, an industrial camera 3 photographs the workpiece under test for identification and precise positioning, and then the workpiece is accurately gripped by an electric gripper 4.

[0031] Preferably, the tray placement rack 5 is equipped with a spring-loaded sorting box 10.

[0032] Preferably, the upper surface of the spring tray 7 is provided with a groove for fixing various springs; handles 8 are provided on both sides of the spring tray 7 for easy removal and placement when changing the tray.

[0033] Preferably, the aluminum panel frame 6 has four sets of openings for placing the spring tray 7.

[0034] Preferably, the spring tray 7 is made of PVC material. Alternatively, it may be made of the same transparent non-metallic material.

[0035] Workflow: S1. Spring Loading: A batch of springs is placed sequentially onto the workbench assembly. S2. The industrial camera 4 on the six-axis robot 2 takes pictures. The six-axis robot 2 picks up springs sequentially from the workbench assembly. The electric gripper 4 at the end is set to change its gripping range according to the diameter of the spring being picked up, ensuring pick-up accuracy. S3. After picking up, the springs are sent to the spring tester 9, and then more springs are picked up and placed on the other side of the spring tester 9. S4. After inspection, the six-axis robot 2 picks up the inspected springs and places them into the spring sorting box 10 of the corresponding specification. When a defective product is detected, it is placed in the scrap box. S5. After all the springs on the tray placement rack 5 have been inspected, the empty spring tray 7 containing the springs to be tested is replaced by a manual replacement, and the sorted springs are removed from the spring sorting box 10. S6. Repeat the above steps to complete the inspection of other workpieces for the day.

[0036] The above description only describes the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model, and all such changes should be included within the protection scope of the present utility model.

Claims

1. An automatic detection system for brake valve springs of railway freight cars, characterized in that: The device includes a gripper robot assembly, a workbench assembly, a spring tester (9), and a spring tester control cabinet (13). The gripper robot assembly is arranged adjacent to the workbench assembly. Two sets of spring testers (9) are symmetrically arranged on both sides of the gripper robot assembly. The spring tester control cabinet (13) is electrically connected to the gripper robot assembly and the spring tester (9).

2. The automatic detection system for railway freight car brake valve springs according to claim 1, characterized in that: The gripper robot assembly, the workbench assembly, and the spring tester (9) are surrounded by a safety railing (12), and the spring tester control cabinet (13) is located outside the safety railing (12).

3. The automatic detection system for railway freight car brake valve springs according to claim 1, characterized in that: The gripper robot assembly includes a robot stand (1), a six-axis robot (2), and an electric gripper (4). The robot stand (1) is fixedly installed on the ground. The six-axis robot (2) is installed on the robot stand (1). The electric gripper (4) is installed at the end of the six-axis robot (2). Both the six-axis robot (2) and the electric gripper (4) are electrically connected to the spring tester control cabinet (13).

4. The automatic detection system for railway freight car brake valve springs according to claim 3, characterized in that: The six-axis robot (2) is equipped with an industrial camera (3) at its end, and the industrial camera (3) is electrically connected to the spring tester control cabinet (13).

5. The automatic detection system for railway freight car brake valve springs according to claim 1, characterized in that: The workbench assembly includes a tray placement rack (5) and a spring tray (7). The tray placement rack (5) is set on the ground. An aluminum panel frame (6) is set on the tray placement rack (5). The spring tray (7) is set on the aluminum panel frame (6). A light source element (11) is set inside the aluminum panel frame (6) and below the tray spring tray (7).

6. The automatic detection system for railway freight car brake valve springs according to claim 5, characterized in that: The tray placement rack (5) is equipped with a spring sorting box (10).

7. The automatic detection system for railway freight car brake valve springs according to claim 5, characterized in that: The upper surface of the spring tray (7) is provided with a groove, and the two sides of the spring tray (7) are provided with handles (8).

8. The automatic detection system for railway freight car brake valve springs according to claim 5, characterized in that: The aluminum panel frame (6) has four sets of openings for placing the spring tray (7).

9. The automatic detection system for railway freight car brake valve springs according to claim 5, characterized in that: The spring tray (7) is made of PVC material.

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