Straight bevel gear comprehensive precision inspection measuring instrument

Abstract

The utility model provides a kind of straight bevel gear comprehensive precision inspection measuring instrument, it is related to gear meshing precision inspection technical field, comprising: base;Two movement mechanisms, two the movement mechanism vertical orientation is set on the base, every movement mechanism includes screw rod adjusting structure and traction structure;The traction structure includes shaft sleeve, mandrel and second motor, the mandrel is rotatably connected with the shaft sleeve, the shaft sleeve is connected with the movable end of the movement mechanism, and the output of the second motor is connected with the mandrel.The utility model has the beneficial effects that: through the vertical orientation arrangement of two movement mechanisms, the synergies of screw rod adjusting structure and traction structure are combined, the position and attitude of straight bevel gear can be accurately adjusted, ensure that gear is in ideal meshing state in the measurement process, second, the setting of camera makes it possible to real-time shoot the meshing state of straight bevel gear, cooperate with universal support frame, and shooting angle can be flexibly adjusted.

Description

Technical Field

[0001] This utility model relates to the field of gear meshing accuracy inspection technology, and in particular to a comprehensive accuracy inspection and measuring instrument for straight bevel gears. Background Technology

[0002] Straight bevel gears, as a key mechanical transmission component, are widely used in numerous fields such as automotive differentials, aero engines, and heavy machinery. The tooth surface contact area, including the location, shape, and area of ​​the contact imprint, is a core quality indicator determining the gear's load-bearing capacity, noise level, and service life. Currently, the main methods for detecting the tooth surface contact area of ​​straight bevel gears include the red lead powder method and coordinate measuring machine (CMM). The red lead powder method relies on visual inspection to determine the contact imprint, while CMM uses high-precision single-point measurements to evaluate the geometric characteristics of the tooth surface.

[0003] However, existing testing methods have many shortcomings. The red lead powder coloring method relies on manual visual judgment, which is highly subjective and difficult to provide quantitative data, making it difficult to guarantee the repeatability and accuracy of the test results. Although coordinate measuring machine (CMM) has high accuracy, its single-point measurement efficiency is low and it is difficult to dynamically simulate the actual meshing state of gears. In addition, existing technologies only support unidirectional rotational meshing detection, which cannot comprehensively assess the differences between gears in forward and reverse operation, and lack the ability to simultaneously detect both sides of the tooth surface. Reverse side detection requires re-clamping, which further reduces the detection efficiency and makes it difficult to meet the strict requirements of modern industry for gear quality control. Utility Model Content

[0004] In view of this, embodiments of the present invention provide a comprehensive accuracy testing and measuring instrument for straight bevel gears to solve the technical problem that existing testing methods cannot simulate the actual meshing state of straight bevel gears.

[0005] An embodiment of this utility model provides a comprehensive accuracy testing and measuring instrument for straight bevel gears, comprising:

[0006] Base;

[0007] Two motion mechanisms are arranged vertically on the base, and each motion mechanism includes a lead screw adjustment structure and a traction structure.

[0008] The traction structure includes a bushing, a spindle, and a second motor. The spindle is rotatably connected to the bushing, the bushing is connected to the movable end of the lead screw adjustment structure, and the output end of the second motor is connected to the spindle.

[0009] A camera, which is mounted on the base and faces the ends of the two spindles, is used to capture the meshing state of the straight bevel gears.

[0010] Furthermore, the lead screw adjustment structure includes a connecting plate, a slider, a movable support plate, and a driving component. The connecting plate has a groove arranged along its length direction, and the slider slides in the groove. At the same time, the slider is connected to the output end of the driving component. The movable support plate is connected to the slider, and the slider is driven to slide by the driving component, so that the movable support plate moves synchronously.

[0011] Furthermore, the driving component includes a first motor and a lead screw. The slider has a threaded hole, and the lead screw is threadedly connected to the threaded hole. The output end of the first motor is connected to the lead screw, and the first motor can drive the lead screw to rotate, thereby achieving threaded drive of the slider.

[0012] Furthermore, the end of the connecting plate is provided with a mounting base, and the first motor is connected to the mounting base, so that the first motor is mounted on the connecting plate.

[0013] Furthermore, one end of each of the two mandrels extends to the outside of the bushing, and a first gear seat and a second gear seat are respectively provided on the end for mounting the inspection gear.

[0014] Furthermore, the base is equipped with a universal support frame, and the camera is connected to the universal support frame, allowing the camera to flexibly adjust its orientation.

[0015] Furthermore, the slider is provided with a grating ruler feedback device, which is used to measure the displacement data of the slider.

[0016] Furthermore, the axial direction of the bushing is perpendicular to the translational direction of the movable pallet.

[0017] Furthermore, the bushing has a plate-like structure on its exterior, and the bushing is fastened to the surface of the movable support plate by bolts.

[0018] Furthermore, it also includes a controller for controlling the two motion mechanisms.

[0019] The beneficial effects of the technical solution provided by the embodiments of this utility model are as follows: The straight bevel gear comprehensive precision inspection and measuring instrument of this utility model, through the vertical arrangement of two motion mechanisms and the synergistic effect of the lead screw adjustment structure and traction structure, can accurately adjust the position and posture of the straight bevel gear, ensuring that the gear is in an ideal meshing state during the measurement process. Secondly, the camera setting enables real-time shooting of the meshing state of the straight bevel gear. With the universal support frame, the shooting angle can be flexibly adjusted to capture key details in the gear meshing process, which helps to accurately evaluate the gear's tooth profile, tooth direction and other precision indicators. Furthermore, the application of the grating ruler feedback device enables accurate measurement of the slider displacement data, further improving the automation level and precision control capability of the measurement. Attached Figure Description

[0020] Figure 1 This is a perspective view of the comprehensive accuracy testing and measuring instrument for straight bevel gears of this utility model;

[0021] Figure 2 This is a side view of the comprehensive accuracy testing and measuring instrument for straight bevel gears of this utility model;

[0022] Figure 3 This is a top view of the comprehensive accuracy testing and measuring instrument for straight bevel gears of this utility model.

[0023] In the diagram: 1. Base; 2. Connecting plate; 3. Slider; 4. Moving support plate; 5. Grating ruler feedback component; 6. First motor; 7. Lead screw; 8. Mounting seat; 9. Bushing; 10. Mandrel; 11. Second motor; 12. First gear seat; 13. Second gear seat; 14. Universal support frame; 15. Camera; 16. Controller. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings. The following description presents a preferred embodiment of several possible embodiments of this utility model, intended to provide a basic understanding of the utility model, but not intended to identify the key or decisive elements of the utility model or to limit the scope of protection sought.

[0025] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0026] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures. Also, it should be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale.

[0028] In the description of this utility model, it should be noted that the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0029] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please refer to Figures 1 to 3 This utility model embodiment proposes a comprehensive accuracy testing and measuring instrument for straight bevel gears, including a base 1, two motion mechanisms, a camera 15, and a controller 16.

[0031] The base 1 serves as the support for the entire measuring instrument. Both motion mechanisms are mounted on the base 1 and arranged vertically. Each motion mechanism includes a lead screw adjustment structure and a traction structure.

[0032] It should be noted that the lead screw adjustment structure includes a connecting plate 2, a slider 3, a movable support plate 4, and a driving component. The connecting plate 2 is elongated and has a groove along its length. The slider 3 is adapted to the groove and can slide along the groove. The output end of the driving component is connected to the slider 3.

[0033] The slider 3 is driven to slide within the groove by a driving component, which in turn drives the movable tray 4 connected to the slider 3 to move synchronously.

[0034] In an optional embodiment, the driving component includes a first motor 6 and a lead screw 7. A threaded hole is provided through the slider 3, and the lead screw 7 is threadedly connected to the threaded hole. The output end of the first motor 6 is connected to the lead screw 7.

[0035] When the first motor 6 is working, its output shaft drives the lead screw 7 to rotate. Due to the threaded connection between the lead screw 7 and the slider 3, the rotation of the lead screw 7 is converted into the linear motion of the slider 3 along the groove direction of the connecting plate 2, thereby realizing the adjustment of the position of the moving pallet 4.

[0036] To increase the adjustment accuracy of the lead screw adjustment structure, a grating ruler feedback component 5 is also provided on the slider 3. The grating ruler feedback component 5 can measure the displacement data of the slider 3 in real time and feed the data back to the controller 16. The controller 16 performs precise control of the operation of the first motor 6 based on the feedback data, thereby realizing high-precision adjustment of the position of the moving pallet 4 and improving the accuracy of measurement.

[0037] In another optional embodiment, the end of the connecting plate 2 is provided with a mounting base 8, and the first motor 6 is fixedly mounted on the mounting base 8. This design ensures that the first motor 6 is stably mounted on the connecting plate 2, thus guaranteeing the smoothness of the driving process.

[0038] In addition, the axial direction of the bushing 9 is perpendicular to the translational direction of the movable support plate 4. The outer surface of the bushing 9 has a plate-like structure, which is fastened to the surface of the movable support plate 4 by bolts to ensure the stable installation of the bushing 9 on the movable support plate 4.

[0039] In this embodiment, the traction structure includes a bushing 9, a spindle 10, and a second motor 11. The spindle 10 is rotatably connected to the bushing 9. The bushing 9 is connected to the movable end (i.e., the movable support plate 4) of the lead screw adjustment structure. The output end of the second motor 11 is connected to the spindle 10. One end of each of the two spindles 10 extends to the outside of the bushing 9. A first gear seat 12 and a second gear seat 13 are respectively provided on this end for mounting the straight bevel gear to be inspected.

[0040] When it is necessary to inspect the straight bevel gears, the two straight bevel gears are installed on the first gear seat 12 and the second gear seat 13 respectively. The spindle 10 is driven to rotate by the second motor 11, thereby realizing the meshing operation of the straight bevel gears and simulating the actual working state.

[0041] Camera 15 is mounted on base 1 and faces the straight bevel gears at the ends of the two spindles 10. It is used to capture images of the straight bevel gears in the meshing state. Camera 15 is connected to universal support frame 14. Universal support frame 14 has multiple adjustable joints and arms, which can flexibly adjust the orientation and position of camera 15 to ensure that camera 15 can clearly and accurately capture the key parts and details in the meshing process of straight bevel gears, providing high-quality image data for subsequent image analysis and accuracy detection.

[0042] The controller 16 is used to control the operation of the two motion mechanisms. The controller 16 is electrically connected to the first motor 6, the second motor 11, and the grating ruler feedback device 5, etc., and realizes the automated operation of the measuring instrument through a preset control program.

[0043] During operation, the operator can set measurement parameters and start the measurement process through the controller 16. The controller 16 controls the lead screw adjustment structure and traction structure in the two motion mechanisms to work together, so that the straight bevel gears installed on the first gear seat 12 and the second gear seat 13 mesh according to the predetermined motion trajectory and method. At the same time, the controller 15 controls the camera 15 to collect images and receives displacement data and other information transmitted by the grating ruler feedback device 5. The collected data is processed and analyzed to obtain the comprehensive accuracy indicators of the straight bevel gear, such as tooth profile accuracy, tooth direction accuracy, meshing accuracy, etc. The measurement results are displayed on the display screen of the controller 16 for the operator to view and evaluate.

[0044] In practical use, the two straight bevel gears to be inspected are first installed on the first gear seat 12 and the second gear seat 13 respectively, ensuring that the gears are firmly installed and accurately positioned. Then, appropriate measurement parameters, such as the gear speed and the camera shooting frequency, are set through the controller 16. After receiving the instruction, the controller 16 controls the first motor 6 to run, driving the lead screw 7 to rotate, which in turn drives the slider 3 to slide along the groove of the connecting plate 2, thereby moving the moving pallet 4 to the preset position. The relative position between the two moving mechanisms is adjusted so that the axes of the two straight bevel gears are perpendicularly intersecting and in a suitable meshing position. At the same time, the grating ruler feedback device 5 monitors the displacement data of the slider 3 in real time and feeds the data back to the controller 16. The controller 16 makes fine adjustments to the operation of the first motor 6 based on the feedback data to ensure the precise positioning of the moving pallet 4.

[0045] After the two straight bevel gears are positioned, the controller 16 controls either of the two second motors 11, causing one of the second motors 11 to drive the spindle 10 on one side to rotate. This causes the straight bevel gear mounted on the spindle 10 to start rotating, and through gear meshing, it drives the other side to rotate. During gear meshing, the camera 15 continuously captures images of the meshing state of the straight bevel gears at a preset shooting frequency and angle, and transmits the image data to the controller 16. The image processing software inside the controller 16 analyzes and processes the acquired images, extracts key information such as gear tooth profile and tooth direction, compares it with a standard gear model, and calculates various accuracy deviation values. At the same time, it combines the displacement data provided by the grating ruler feedback device 5 and the speed information of the second motor 11. Subsequently, the controller 16 controls the other second motor 11 to make the two straight bevel gears complete the clockwise and counterclockwise drive reversal. The two results are statistically analyzed and comprehensively evaluated to determine the overall accuracy of the straight bevel gears, and finally a detailed measurement report is obtained.

[0046] In this document, the directional terms such as front, back, top, and bottom are defined based on the position of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that these are relative concepts and can vary depending on different methods of use and placement; the use of these directional terms should not limit the scope of protection claimed in this application.

[0047] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0048] 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 comprehensive accuracy testing and measuring instrument for straight bevel gears, characterized in that, include: Base (1); Two motion mechanisms are arranged vertically on the base (1), and each motion mechanism includes a lead screw adjustment structure and a traction structure; The traction structure includes a bushing (9), a spindle (10), and a second motor (11). The spindle (10) is rotatably connected to the bushing (9), the bushing (9) is connected to the movable end of the lead screw adjustment structure, and the output end of the second motor (11) is connected to the spindle (10). A camera (15) is mounted on the base (1) and faces the ends of the two spindles (10). The camera (15) is used to capture images of the meshing spur bevel gears.

2. The precision inspection and measuring instrument for spur bevel gears as claimed in claim 1, characterized in that The lead screw adjustment structure includes a connecting plate (2), a slider (3), a movable support plate (4), and a driving component. The connecting plate (2) has a groove arranged along its length direction. The slider (3) slides in the groove and is connected to the output end of the driving component. The movable support plate (4) is connected to the slider (3). The slider (3) is driven to slide by the driving component, so that the movable support plate (4) moves synchronously.

3. The precision inspection and measuring instrument for spur bevel gears as claimed in claim 2, characterized in that: The driving component includes a first motor (6) and a lead screw (7). The slider (3) has a threaded hole through it. The lead screw (7) is threadedly connected to the threaded hole. The output end of the first motor (6) is connected to the lead screw (7). The first motor (6) can drive the lead screw (7) to rotate, so as to realize the threaded drive of the slider (3).

4. The precision inspection and measuring instrument for spur bevel gears as claimed in claim 3, characterized in that: The end of the connecting plate (2) is provided with a mounting base (8), and the first motor (6) is connected to the mounting base (8), so that the first motor (6) is mounted on the connecting plate (2).

5. The precision inspection and measuring instrument for spur bevel gears as claimed in claim 1, characterized in that: One end of each of the two mandrels (10) extends to the outside of the bushing (9), and a first gear seat (12) and a second gear seat (13) are respectively provided on the end for mounting inspection gears.

6. The straight bevel gear comprehensive accuracy testing and measuring instrument as described in claim 1, characterized in that: The base (1) is provided with a universal support frame (14), and the camera (15) is connected to the universal support frame (14), so that the camera (15) can flexibly adjust its orientation.

7. The precision inspection and measuring instrument for spur bevel gears as claimed in claim 2, characterized in that: The slider (3) is provided with a grating ruler feedback device (5), which is used to measure the displacement data of the slider (3).

8. The straight bevel gear comprehensive accuracy testing and measuring instrument as described in claim 2, characterized in that: The axial direction of the bushing (9) is perpendicular to the translational direction of the movable pallet (4).

9. The straight bevel gear comprehensive accuracy testing and measuring instrument as described in claim 2, characterized in that: The bushing (9) has a plate-like structure on the outside and is fastened to the surface of the movable support plate (4) by bolts.

10. The straight bevel gear comprehensive accuracy testing and measuring instrument as described in claim 1, characterized in that: It also includes a controller (16) for controlling the two motion mechanisms.

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