Engineering truck cab door hydraulic lock detection tool
By introducing a force and angle detection mechanism and quick-change tooling, combined with servo motors and cylinders, automated detection of hydraulic locks on the cab doors of engineering vehicles has been achieved, solving the accuracy and efficiency problems of traditional manual detection and improving the accuracy and efficiency of detection.
Patent Information
- Application Number
- CN202520626782.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-05
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-05
AI Technical Summary
Traditional hydraulic lock testing for the cab doors of engineering vehicles relies on manual operation, resulting in inaccurate measurement accuracy, low efficiency, and complex and error-prone data recording, making it difficult to meet the requirements for high-precision and high-efficiency testing.
The system employs a force and angle detection mechanism and quick-change tooling, combined with a servo motor and cylinder, to achieve automated detection. The servo motor moves the hydraulic lock handle to the appropriate position, and the cylinder controls the lever to clamp or release the handle, while torque and angle sensors are used for precise measurement.
It improves the accuracy and efficiency of testing, reduces manual intervention, lowers labor intensity, and ensures the accuracy and reliability of test data.
Smart Images
Figure CN223940511U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hydraulic lock testing fixtures for engineering vehicle cab doors, specifically a hydraulic lock testing fixture for engineering vehicle cab doors. Background Technology
[0002] In the field of engineering vehicles, the safety of the cab door is paramount, and the hydraulic lock, as a key component ensuring the secure closing and opening of the door, requires rigorous performance testing. Traditional testing of hydraulic locks for engineering vehicle cab doors relies primarily on manual operation. Manual operation suffers from inaccurate measurement accuracy, low efficiency, complex data recording, and a high risk of errors. Furthermore, the cumbersome manual process, requiring operators to sequentially measure various parameters for each test, is time-consuming. This is particularly problematic in large-scale production where testing numerous hydraulic locks is necessary, severely hindering production progress. Therefore, traditional manual testing methods are insufficient to meet the demands for high-precision and high-efficiency testing of hydraulic locks for engineering vehicle cab doors. This invention addresses these issues with a hydraulic lock testing fixture for engineering vehicle cab doors. By incorporating a force and angle detection mechanism and a quick-change fixture, it solves the problems of inaccurate measurement accuracy, low efficiency, and complex, error-prone data recording inherent in existing technologies. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a testing fixture for the hydraulic lock of the cab door of an engineering vehicle.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a hydraulic lock testing fixture for the cab door of an engineering vehicle, comprising a lower frame, an upper frame above the lower frame, a fan at the top center of the upper frame, a display on one side of the upper frame, a process document display board on one side of the display, the process document display board sliding on the upper frame, a force angle detection mechanism and a quick-change fixture at the top of the lower frame, a keyboard drawer slidably connected inside the upper end of the lower frame, an industrial control computer on one side of the keyboard drawer, and the industrial control computer located inside the lower frame.
[0005] As a further description of the above technical solution:
[0006] The force angle detection mechanism includes a base, which is fixedly mounted on the top of the lower frame. A cylinder is fixedly mounted on the top of the base, and the output end of the cylinder is fixedly connected to a servo motor.
[0007] As a further description of the above technical solution:
[0008] The output end of the servo motor is fixedly connected to the upper end of the reducer. A frame is provided below the reducer. A torque sensor and an angle sensor are provided inside the frame. The bottom end of the reducer passes through the top of the frame and is connected to the upper end of the torque sensor. The bottom end of the torque sensor is connected to the angle sensor. The bottom end of the angle sensor passes through the bottom of the frame and is connected to the bracket.
[0009] As a further description of the above technical solution:
[0010] The servo motor, reducer, torque sensor, and angle sensor slide on two sets of linear guides symmetrically arranged on both sides of the outer wall of the base via a frame.
[0011] As a further description of the above technical solution:
[0012] The quick-change tooling includes a quick-change tooling plate, which is symmetrically arranged on one side of the bottom end near the machine base.
[0013] As a further description of the above technical solution:
[0014] A hydraulic lock handle is provided above the quick-change tooling plate. One end of the hydraulic lock handle is located in the middle of the bottom end of the lever, and the lever is located at the end of the bracket away from the angle sensor.
[0015] As a further description of the above technical solution:
[0016] A hydraulic lock is placed on top of the quick-change tooling plate. When the servo motor is started, it drives the lever to move the hydraulic lock handle to the appropriate position. The cylinder is then started, and the cylinder controls the lever to clamp or release the hydraulic lock handle.
[0017] This utility model has the following beneficial effects:
[0018] 1. The force and angle detection mechanism can accurately detect the force and angle changes of the hydraulic lock during operation, thereby avoiding deviations in the detection results caused by human error and ensuring the accuracy and reliability of the detection data. It is also simple in design, easy to install, and convenient for employees to use.
[0019] 2. By starting the servo motor, the hydraulic lock handle can be automatically moved to the appropriate position. The cylinder can control the lever to clamp or release the hydraulic lock handle, realizing the automation of the detection process. Compared with the traditional manual detection method, it improves detection efficiency, reduces manual intervention, and reduces labor intensity. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall design of a hydraulic lock testing fixture for the driver's cab door of an engineering vehicle proposed in this utility model.
[0021] Figure 2This is a schematic diagram of the force and angle detection mechanism of a hydraulic lock detection fixture for the cab door of an engineering vehicle proposed in this utility model;
[0022] Figure 3 This is a schematic diagram of a quick-change fixture for testing the hydraulic lock of the cab door of an engineering vehicle, as proposed in this utility model.
[0023] Legend:
[0024] 1. Fan; 2. Process document display board; 3. Force and angle detection mechanism; 31. Cylinder; 32. Servo motor; 33. Reducer; 34. Torque sensor; 35. Angle sensor; 36. Machine base; 37. Linear guide rail; 4. Quick-change tooling; 41. Quick-change tooling plate; 42. Lever; 5. Keyboard drawer; 6. Industrial computer; 7. Lower frame; 8. Monitor; 9. Upper frame. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] Reference Figures 1-3This utility model provides an embodiment of a hydraulic lock testing fixture for the driver's cab door of an engineering vehicle, comprising a lower frame 7, an upper frame 9 above the lower frame 7, a fan 1 at the top center of the upper frame 9 for cooling the internal equipment of the fixture and ensuring stable operation of the equipment in a suitable temperature environment, a display 8 on one side of the upper frame 9 for real-time display of test data and results for convenient observation and recording by operators, and a process document display board 2 on one side of the display 8, which slides on the upper frame 9, allowing operators to slide the process document display board 2 as needed to view relevant test process documents and operating instructions.
[0029] The top of the lower frame 7 is equipped with a force angle detection mechanism 3 and a quick-change tooling 4. The upper end of the lower frame 7 is slidably connected to a keyboard drawer 5. An industrial control computer 6 is installed on one side of the keyboard drawer 5. The industrial control computer 6 is located inside the lower frame 7. The keyboard drawer 5 allows operators to easily pull out the keyboard for operation when needed. The industrial control computer 6 is used to control the operation and data processing of the entire detection tooling.
[0030] The force angle detection mechanism 3 includes a base 36, which is fixedly mounted on the top of the lower frame 7. A cylinder 31 is fixedly mounted on the top of the base 36. The output end of the cylinder 31 is fixedly connected to a servo motor 32. The cylinder 31 is used to provide power in the vertical direction to realize the position control of the servo motor 32 in the vertical direction.
[0031] The output end of the servo motor 32 is fixedly connected to the upper end of the reducer 33. A frame is installed below the reducer 33, and a torque sensor 34 and an angle sensor 35 are installed inside the frame. The bottom end of the reducer 33 passes through the top of the frame and connects to the upper end of the torque sensor 34. The bottom end of the torque sensor 34 is connected to the angle sensor 35, and the bottom end of the angle sensor 35 passes through the bottom of the frame and connects to the bracket. The servo motor 32 provides rotational power, which is reduced and amplified by the reducer 33 and then transmitted to the torque sensor 34. The torque sensor 34 is used to detect the torque value during rotation, and the angle sensor 35 is used to detect the rotation angle.
[0032] The servo motor 32, reducer 33, torque sensor 34 and angle sensor 35 slide on two sets of linear guide rails 37 symmetrically arranged on both sides of the outer wall of the base 36 via the frame. The linear guide rails 37 ensure the smooth sliding of the force angle detection mechanism 3 in the vertical direction, improving the accuracy and stability of the detection.
[0033] The quick-change tooling 4 includes a quick-change tooling plate 41, which is symmetrically arranged on one side of the bottom end near the machine base 36. The quick-change tooling plate 41 facilitates the replacement of different models of hydraulic locks for testing, thus improving the versatility and applicability of the tooling.
[0034] A hydraulic lock handle is provided above the quick-change tooling plate 41. One end of the hydraulic lock handle is located in the middle of the bottom end of the lever 42, and the lever 42 is located at the end of the bracket away from the angle sensor 35.
[0035] A hydraulic lock is placed on top of the quick-change tooling plate 41. When the servo motor 32 is started, the servo motor 32 drives the lever 42 to move the hydraulic lock handle to the appropriate position. The cylinder 31 is started, and the cylinder 31 controls the lever 42 to clamp or release the hydraulic lock handle. Through the cooperation of the servo motor 32 and the cylinder 31, the hydraulic lock handle can be precisely operated to simulate the action in actual use, thereby accurately testing the performance of the hydraulic lock.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 testing fixture for hydraulic locks on the cab doors of engineering vehicles, characterized in that: The system includes a lower frame (7), an upper frame (9) above the lower frame (7), a fan (1) at the top center of the upper frame (9), a display (8) on one side of the upper frame (9), a process document display board (2) on one side of the display (8), the process document display board (2) sliding on the upper frame (9), a force angle detection mechanism (3) and a quick-change tooling (4) on the top of the lower frame (7), a keyboard drawer (5) slidingly connected inside the upper end of the lower frame (7), an industrial control computer (6) on one side of the keyboard drawer (5), and the industrial control computer (6) located inside the lower frame (7).
2. The testing fixture for the hydraulic lock of the cab door of an engineering vehicle according to claim 1, characterized in that: The force angle detection mechanism (3) includes a base (36), which is fixedly installed on the top of the lower frame (7). A cylinder (31) is fixedly installed on the top of the base (36), and the output end of the cylinder (31) is fixedly connected to a servo motor (32).
3. The testing fixture for the hydraulic lock of the cab door of an engineering vehicle according to claim 2, characterized in that: The output end of the servo motor (32) is fixedly connected to the upper end of the reducer (33). A frame is provided below the reducer (33). A torque sensor (34) and an angle sensor (35) are provided inside the frame. The bottom end of the reducer (33) passes through the top of the frame and is connected to the upper end of the torque sensor (34). The bottom end of the torque sensor (34) is connected to the angle sensor (35). The bottom end of the angle sensor (35) passes through the bottom of the frame and is connected to the bracket.
4. The testing fixture for the hydraulic lock of the cab door of an engineering vehicle according to claim 3, characterized in that: The servo motor (32), reducer (33), torque sensor (34) and angle sensor (35) slide on two sets of linear guide rails (37) symmetrically arranged on both sides of the outer wall of the base (36) via the frame.
5. The testing fixture for the hydraulic lock of the cab door of an engineering vehicle according to claim 4, characterized in that: The quick-change tooling (4) includes a quick-change tooling plate (41), which is symmetrically arranged on one side of the bottom end near the machine base (36).
6. The testing fixture for the hydraulic lock of the cab door of an engineering vehicle according to claim 5, characterized in that: A hydraulic lock handle is provided above the quick-change tooling plate (41). One end of the hydraulic lock handle is located in the middle of the bottom end of the lever (42). The lever (42) is located at the end of the bracket away from the angle sensor (35).
7. The testing fixture for the hydraulic lock of the cab door of an engineering vehicle according to claim 6, characterized in that: A hydraulic lock is placed on top of the quick-change tooling plate (41). When the servo motor (32) is started, the servo motor (32) drives the lever (42) to move the hydraulic lock handle to the appropriate position. The cylinder (31) is started, and the cylinder (31) controls the lever (42) to clamp or release the hydraulic lock handle.