Hinged shaft detection device
By designing a hinged shaft detection device, the flexible connection between the active plate and the passive plate is achieved by using sensor components, which solves the problem of insufficient traditional manual push-pull detection accuracy, improves detection efficiency and safety, and reduces detection costs.
Patent Information
- Application Number
- CN202411548853.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-01-10
AI Technical Summary
The traditional manual push-pull detection of articulated shafts is insufficient, resulting in low detection efficiency and excessive cost.
A hinge shaft detection device is designed, including a workbench, an active plate, a sensor assembly, a passive plate and a fixed plate. The flexible connection between the active plate and the passive plate is realized through the sensor assembly, and the gap between the hinge shaft is detected by a micrometer. The active plate is The relative movement of the passive plate drives the tension or compression of the articulated shaft to avoid rigid impact and ensure detection accuracy and safety.
It improves the accuracy and efficiency of articulated shaft detection, reduces the detection cost, ensures the safety of articulated shaft during the detection process, and achieves more efficient detection results.
Smart Images
Figure CN119289921A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of parts detection, and in particular relates to an articulated shaft detection device. Background Art
[0002] In the fields of rail transit, aerospace, civil passenger vehicles, etc., high requirements are placed on the processing accuracy of bearings. Among them, the clearance of articulated shaft products needs to be detected as required after production.
[0003] In reality, due to the influence of the size of the bearing itself, the bearing itself will connect to related components, so the components to be inspected are often in a special-shaped state. The traditional method is to push and pull the bearing manually to achieve the movement and detect the gap. During the clamping or detection process, the bearing itself will slide relative to the ground. The measured experimental values are not accurate, and pure manual detection on site is not convenient for actual operation. The detection accuracy often does not meet the requirements, resulting in problems such as high detection costs and low work efficiency.
[0004] Therefore, there is an urgent need for an articulated shaft detection device that can improve detection efficiency and accuracy to meet its bearing detection needs. Summary of the invention
[0005] The purpose of the present invention is to provide an articulated shaft detection device with high detection efficiency and accuracy. The specific technical scheme is as follows:
[0006] An articulated shaft detection device includes a workbench, an active plate, a sensor assembly, a passive plate, a fixed plate, and a micrometer;
[0007] The active plate and the passive plate are both slidably arranged on the workbench, and the active plate and the passive plate are flexibly connected via a sensor assembly;
[0008] The fixed plate is fixedly arranged on the workbench, and the two ends to be tested of the hinged shaft are respectively connected to the passive plate and the fixed plate;
[0009] The micrometer is arranged on the workbench and is used for detecting the clearance of the articulated shaft.
[0010] Preferably, the sensor assembly includes a gravity sensor, a connecting piece and a fixing pin;
[0011] One end of the gravity sensor is connected to the active plate through a connecting piece, and the other end is provided with a fixing pin;
[0012] The passive plate is provided with a connecting plate, the connecting plate is provided with a pin shaft hole matching the fixing pin, the pin shaft hole is a through hole, and the connecting plate is sleeved on the fixing pin through the pin shaft hole;
[0013] Two groups of springs are also sleeved on the fixing pin. The two groups of springs are respectively located at two ends of the connecting plate and contact the connecting plate, so as to be used for the flexible connection between the fixing pin and the connecting plate.
[0014] Preferably, the active plate is provided with a slider, the workbench is provided with a guide rail matching the slider, and the active plate is slidably arranged on the workbench through the slider and the guide rail.
[0015] Preferably, the active plate is further provided with a screw nut, the workbench is rotatably provided with a screw matching the screw nut, the screw is transmission-connected with the screw nut, and is used to convert the rotational motion of the screw into the sliding motion of the active plate along the guide rail;
[0016] The screw rod is also connected to the driving motor.
[0017] Preferably, the workbench is also provided with a controller, a display screen and an industrial control screen;
[0018] The micrometer, gravity sensor, drive motor, display screen and industrial control screen are all connected to the controller;
[0019] The display screen is used to display detection data;
[0020] The industrial control screen is a MCGS industrial control screen, which is used to set detection parameters.
[0021] Preferably, both the passive plate and the fixed plate are provided with a fixing fixture assembly, and the two ends to be measured of the hinge shaft are connected to the passive plate and the fixed plate respectively through the fixing fixture assembly.
[0022] Preferably, the passive plate and the fixed plate are both provided with a centerline mark of the fixed tooling component, a hole position of the fixed tooling component and a hole position of the pressure block clamping mechanism; the centerline mark of the fixed tooling component and the hole position of the fixed tooling component are used for installing the fixed tooling component, and the hole position of the pressure block clamping mechanism is used for installing the pressure block clamping mechanism that clamps the fixed tooling component.
[0023] Preferably, the fixing plate is also provided with a waist adjustment hole.
[0024] Preferably, the micrometer is arranged on a workbench via a magnetic base universal bracket, which is used to adjust the working position and posture of the micrometer.
[0025] Preferably, the relative height difference among the active board, the passive board and the fixed board is within 0.2 mm.
[0026] Compared with the prior art, the present invention has the following beneficial effects:
[0027] An articulated shaft detection device of the present invention comprises a workbench, an active plate, a sensor assembly, a passive plate, a fixed plate and a micrometer; the active plate and the passive plate are both slidably arranged on the workbench, and the active plate and the passive plate are flexibly connected via the sensor assembly; the fixed plate is fixedly arranged on the workbench, and the two ends to be measured of the articulated shaft are respectively connected to the passive plate and the fixed plate; the micrometer is arranged on the workbench and is used to detect the clearance of the articulated shaft. The present invention solves the problems of insufficient detection accuracy and low detection efficiency of the traditional manual push-pull articulated shaft; by controlling the interaction among the active plate, the passive plate and the fixed plate, the clearance of the articulated shaft bearing can be accurately measured, and the sensor assembly can ensure that the force of the articulated shaft is accurate and reasonable during the pulling and pressing process, thereby protecting the articulated shaft and the entire system from damage and reducing the detection cost.
[0028] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 is a schematic diagram of the overall structure of the hinge shaft detection device in the embodiment;
[0030] Figure 2 yes Figure 1 A partial enlarged schematic diagram of
[0031] Figure 3 yes Figure 1 Schematic diagram of the structure of the sensor assembly;
[0032] Figure 4 for Figure 1 Front view of the passive plate;
[0033] Figure 5 for Figure 1 Side view of the middle passive plate;
[0034] Figure 6 for Figure 1 Structural diagram of the middle fixed plate;
[0035] Figure 7 Schematic diagram of the assembly of the gravity sensor, spring, fixing pin and passive plate in the embodiment.
[0036] In the figure: 0, workbench; 1, active board; 2, sensor assembly, 2.1, gravity sensor, 2.2, connector, 2.3, fixing pin, 2.4, spring; 3, passive board, 3.1, connecting plate, 3.2, pin shaft hole; 4, fixing plate; 5, micrometer; 6, slider; 7, guide rail; 8, screw nut; 9, screw; 10, display screen; 11, industrial control screen; 12, fixed tooling assembly; 13, fixed tooling assembly center line mark; 14, fixed tooling assembly hole position; 15, pressure block clamping mechanism hole position; 16, magnetic table base universal bracket; 17, adjustment waist hole. DETAILED DESCRIPTION
[0037] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0038] Example:
[0039] An articulated shaft detection device, reference Figure 1 , including a workbench 0, an active plate 1, a sensor assembly 2, a passive plate 3, a fixed plate 4 and a micrometer 5; the active plate 1 and the passive plate 3 are both reciprocatingly slidably arranged on the workbench 0, and the active plate 1 and the passive plate 3 are flexibly connected through the sensor assembly 2; the fixed plate 4 is fixedly arranged on the workbench 0, and the two ends to be measured of the hinge shaft are respectively connected to the passive plate 3 and the fixed plate 4; the micrometer 5 is arranged on the workbench 0, and is used to detect the hinge shaft clearance.
[0040] In this embodiment, the active plate slides back and forth linearly on the workbench, and the passive plate slides linearly with the active plate, thereby driving the passive plate and the hinge shaft on the fixed plate to stretch or compress, and the active plate and the passive plate are flexibly connected to avoid rigid impact and damage caused by stretching or compression of the hinge shaft.
[0041] Through the above-mentioned arrangement, the problem of insufficient detection accuracy of the traditional manual push-pull articulated shaft is solved, and the detection efficiency is improved at the same time; through the interaction of the active plate, the passive plate and the fixed plate, the bearing clearance of the articulated shaft can be accurately measured, and the sensor component is used to ensure that the force applied to the articulated shaft during pulling or pressing is accurate and reasonable, so that the articulated shaft is not easily damaged, thereby reducing the detection cost.
[0042] See also Figure 3The sensor assembly 2 includes a gravity sensor 2.1, a connector 2.2 and a fixing pin 2.3; one end of the gravity sensor 2.1 is connected to the active plate 1 through the connector 2.2, and the other end is provided with a fixing pin 2.3; the passive plate 3 is provided with a connecting plate 3.1, and two accommodating cavities are formed on both sides of the connecting plate; the connecting plate 3.1 is provided with a pin shaft hole 3.2 matching the fixing pin 2.3, the pin shaft hole 3.2 is a through hole, and the connecting plate 3.1 is sleeved on the fixing pin 2.3 through the pin shaft hole 3.2; the fixing pin 2.3 is also sleeved with two groups of springs 2.4, the two groups of springs 2.4 are respectively located in the accommodating cavities at both ends of the connecting plate 3.1, and are in conflict with the connecting plate 3.1, and are used for the flexible connection between the fixing pin 2.3 and the connecting plate 3.1. The fixing pin 2.3 reciprocates in the pin shaft hole 3.2 and the two accommodating cavities, and drives the passive plate to move by stretching or compressing the spring, so as to realize the flexible connection between the two.
[0043] During the detection process, the active plate moves back and forth about 20mm, and the maximum bearing clearance of the articulated shaft does not exceed 2mm. Through the above settings, the active plate is connected to the passive plate through the sensor assembly. The sensor assembly adopts a fixed pin and a spring combination to achieve a flexible connection. Therefore, it is ensured that the rigidly connected articulated shaft bearing is not damaged during the detection and the maximum bearing clearance can be detected.
[0044] The spring is a specially designed mechanism for recoil articulated bearing clearance. This mechanism makes the rigid connection flexible, so that the detection bearing will not be damaged by the reciprocating movement of the detection device and will not destroy the accurate operation of the entire system. The maximum tension or pressure of the spring does not exceed 20 kg. The spring actively compresses and stretches to ensure that the tested part is not damaged.
[0045] See also Figure 2 , Figure 4 and Figure 5 The active plate 1 is provided with a slider 6, and the workbench 0 is provided with a guide rail 7 matching the slider 6. The active plate 1 is slidably arranged on the workbench 0 through the slider 6 and the guide rail 7.
[0046] The active plate 1 is also provided with a screw nut 8, and the workbench 0 is rotatably provided with a screw 9 matching the screw nut 8. The screw 9 is transmission-connected with the screw nut 8 for converting the rotational motion of the screw 9 into sliding of the active plate 1 along the guide rail 7, i.e., linear motion along the guide rail; the screw 9 is also connected to the drive motor.
[0047] The workbench 0 is also provided with a controller, a display screen 10 and an industrial control screen 11; the micrometer 5, the gravity sensor 2.1, the drive motor, the display screen 10 and the industrial control screen 11 are all connected to the controller; the display screen 10 is used to display the test data; the industrial control screen 11 is an MCGS industrial control screen, which is used to set the test parameters. During the measurement process, the micrometer, the gravity sensor, and the drive motor are received and controlled by the controller, the display screen and the industrial control screen. Through the industrial control screen and the display screen, operations such as inputting the code of the test product are met, which is convenient for identification, and the test time, test items, quantity, qualified rate, and the three-dimensional display of the test samples of this section of the workstation are displayed. It ensures the rapidity, beauty and convenience of the test, improves the labor efficiency and test accuracy, and reduces the test cost.
[0048] During actual operation, under adjustable tension and pressure, it meets the requirements of four measurement gaps of 2 fixed hinges and 2 rotating hinges. It can be expanded to detect 10 types of articulated gaps. The accuracy must reach 0.01mm and can be displayed on the same screen in the office through Wife, real-time monitoring, and convenient for USB import and export of data.
[0049] The passive plate 3 and the fixed plate 4 are both provided with a fixing fixture assembly 12, and the two ends to be measured of the articulated shaft are respectively connected to the passive plate 3 and the fixed plate 4 through the fixing fixture assembly 12. The fixed plate and the passive plate are respectively used to fix the bearings of the articulated shaft, and the articulated shaft can be stably fixed by the fixing fixture assembly, and the passive plate is driven to move during the reciprocating movement of the active plate, thereby driving a part of the articulated shaft on the passive plate to move relative to a part of the articulated shaft on the fixed plate, and then the clearance of the articulated shaft is accurately detected by the detection of the micrometer.
[0050] The passive board 3 and the fixed board 4 are both provided with a fixed tool assembly centerline mark 13, a fixed tool assembly hole 14 and a pressure block clamping mechanism hole 15. The fixed tool assembly centerline mark 13 and the fixed tool assembly hole 14 are used to install the fixed tool assembly 12, and the pressure block clamping mechanism hole 15 is used to install the pressure block clamping mechanism that clamps the fixed tool assembly 12. The functional areas of the passive board and the fixed board are reasonably distributed to ensure rapid installation and testing of the object under test.
[0051] See also Figure 5 The fixing plate 4 is also provided with an adjusting waist hole 17.
[0052] The micrometer 5 is arranged on the workbench 0 via a magnetic base universal bracket 16 for adjusting the working position and posture of the micrometer 5 .
[0053] The relative height difference among the active board 1 , the passive board 3 and the fixed board 4 is within 0.2 mm.
[0054] During actual use of the device of this embodiment, when the active plate moves, it will drive the sensor assembly to move and the passive plate 3 to move. When the set tension value is reached, the sensor assembly outputs a signal to the signal controller, and the controller controls the servo motor to reverse. At this time, the passive plate reverses with the active plate until the spring is compressed to the maximum value. The sensor assembly will output another signal, and the servo motor will reverse. This movement is repeated four times back and forth. Each time, the micrometer is used for detection. Because there may be an unstable state in the first time, the average value of the next three detection gaps is taken to determine whether the hinge shaft is qualified.
[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A hinge axis detection device, characterized in that: It comprises a workbench (0), an active plate (1), a sensor assembly (2), a passive plate (3), a fixed plate (4) and a micrometer (5); The active plate (1) and the passive plate (3) are both slidably arranged on the workbench (0), and the active plate (1) and the passive plate (3) are flexibly connected via a sensor assembly (2); The fixed plate (4) is fixedly arranged on the workbench (0), and the two ends to be measured of the hinge shaft are respectively connected to the passive plate (3) and the fixed plate (4); The micrometer (5) is arranged on the workbench (0) and is used to detect the clearance of the articulated shaft.
2. The articulated axis detection device according to claim 1, characterized in that: The sensor assembly (2) comprises a gravity sensor (2.1), a connecting piece (2.2) and a fixing pin (2.3); One end of the gravity sensor (2.1) is connected to the active plate (1) via a connecting piece (2.2), and the other end is provided with a fixing pin (2.3); The passive plate (3) is provided with a connecting plate (3.1), the connecting plate (3.1) is provided with a pin shaft hole (3.2) matching with the fixing pin (2.3), the pin shaft hole (3.2) is a through hole, and the connecting plate (3.1) is sleeved on the fixing pin (2.3) through the pin shaft hole (3.2); The fixing pin (2.3) is also sleeved with two groups of springs (2.4), which are respectively located at two ends of the connecting plate (3.1) and in contact with the connecting plate (3.1) and are used for flexibly connecting the fixing pin (2.3) and the connecting plate (3.1).
3. The articulated axis detection device according to claim 2, characterized in that: The active plate (1) is provided with sliders (6) above and below, the workbench (0) is provided with guide rails (7) matching the sliders (6), and the active plate (1) is slidably arranged on the workbench (0) via the sliders (6) and the guide rails (7).
4. The articulated axis detection device according to claim 3, characterized in that: The active plate (1) is also provided with a screw nut (8), and the workbench (0) is rotatably provided with a screw (9) matching the screw nut (8), and the screw (9) is transmission-connected to the screw nut (8) for converting the rotational motion of the screw (9) into sliding motion of the active plate (1) along the guide rail (7); The screw rod (9) is also connected to a driving motor.
5. The articulated axis detection device according to claim 4, characterized in that: The workbench (0) is also provided with a controller, a display screen (10) and an industrial control screen (11); The micrometer (5), gravity sensor (2.1), drive motor, display screen (10) and industrial control screen (11) are all connected to the controller; The display screen (10) is used to display detection data; The industrial control screen (11) is a MCGS industrial control screen, which is used to set detection parameters.
6. The articulated axis detection device according to claim 1, characterized in that: The passive plate (3) and the fixed plate (4) are both provided with a fixed tooling assembly (12), and the two ends to be measured of the hinge shaft are connected to the passive plate (3) and the fixed plate (4) via the fixed tooling assembly (12).
7. The articulated axis detection device according to claim 6, characterized in that: The passive plate (3) and the fixed plate (4) are both provided with a fixed tool assembly centerline mark (13), a fixed tool assembly hole position (14) and a pressure block clamping mechanism hole position (15); the fixed tool assembly centerline mark (13) and the fixed tool assembly hole position (14) are used to install the fixed tool assembly (12); and the pressure block clamping mechanism hole position (15) is used to install a pressure block clamping mechanism that clamps the fixed tool assembly (12).
8. The articulated shaft detection device according to claim 7, characterized in that: The fixing plate (4) is also provided with a waist adjustment hole (17).
9. The articulated axis detection device according to claim 1, characterized in that: The micrometer (5) is arranged on the workbench (0) via a magnetic base universal bracket (16) and is used to adjust the working position and posture of the micrometer (5).
10. The articulated axis detection device according to claim 1, characterized in that: The relative height difference among the active plate (1), the passive plate (3) and the fixed plate (4) is within 0.2 mm.