Thin-wall gear thickness measuring device

Abstract

The utility model relates to the technical field of thin-wall gear thickness measurement, and discloses a thin-wall gear thickness measuring device. The thin-wall gear thickness measuring device comprises a bottom plate, a controller is fixedly installed above the bottom plate, a fixing frame is fixedly installed above the bottom plate, a touch screen is fixedly installed at the top end of the fixing frame, and an electric push rod is fixedly installed above the bottom plate; the five limiting columns are installed at the four corners of the limiting frame and the center of the limiting frame respectively, the center of the bottom face of the limiting ring is provided with a stud vertically protruding downwards, the outer diameter of the top end of the limiting ring is larger than that of the limiting columns, the limiting disc is kept in a horizontal state through the limiting columns, and the situation that the limiting disc inclines due to uneven stress in the measuring process is prevented; meanwhile, the limiting disc is tightly pressed at the top end of the thin-wall gear through the limiting spring, and laser emitted by the range finder directly irradiates the top surface of the limiting disc, so that the situation that monitoring data of the range finder is affected due to the fact that the wall thickness of the thin-wall gear is too thin is avoided.

Description

Technical Field

[0001] This utility model relates to the field of thin-walled gear thickness measurement technology, specifically a thin-walled gear thickness measurement device. Background Technology

[0002] Thin-walled gears are gears with a thin-walled structure, typically referring to gears where the thinnest part of the gear ring is relatively thin. The characteristic of these gears is that the thinnest part of the gear ring is extremely thin, usually only a few millimeters thick; for example, the thinnest part of the gear ring is only 4.375 mm. Thin-walled gears are primarily designed and used in applications requiring lightweight and compact structures, such as aerospace, automotive, and machinery. They are usually connected by meshing the outer edges of the gears and are suitable for connecting shafts and wheels or concentric shafts connecting two wheels.

[0003] The existing Chinese utility model patent with publication number CN219454957U discloses a gear thickness measuring fixture, including a base plate. A handle is fixedly connected to the upper surface of the base plate, and a reference detection stage is slidably connected to the side of the upper surface of the base plate away from the handle. A gear body is movably connected to the upper surface of the reference detection stage, and an X-axis movement is fixedly connected to the side of the upper surface of the base plate near the reference detection stage. This utility model involves placing the gear body on the reference detection stage, manually moving the vertical movement stage horizontally to the detection position, then pressing down the horizontal movement stage to make the carbide head contact the workpiece to obtain the gear thickness. The stage is then lifted to detect the next gear. Simultaneously, multiple sets of detection ports with different references are set on the gear body, allowing for rapid measurement of multiple gears with different references. Furthermore, it is small in size, low in cost, and easy to use.

[0004] Currently, the thickness of thin-walled gears is generally measured using laser ranging. However, due to the influence of the thin-walled gear's wall thickness, the position of the thin-walled gear needs to be precisely limited during thickness measurement so that the laser can accurately irradiate the top of the thin-walled gear. The positioning operation is cumbersome. Furthermore, due to the influence of the volume of the laser emitted by the laser rangefinder, the detection data of the laser rangefinder will have errors when the wall thickness of the thin-walled gear is too thin. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, this utility model provides a thin-walled gear thickness measuring device, which has the advantages of eliminating the positioning operation and avoiding the impact of the thin-walled gear wall thickness on the measurement accuracy of the laser rangefinder, thus solving the above-mentioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a thin-walled gear thickness measuring device, comprising: a base plate, a controller fixedly mounted on the top of the base plate, a fixed frame fixedly mounted on the top of the base plate, a touch screen fixedly mounted on the top of the fixed frame, an electric push rod fixedly mounted on the top of the base plate, a support plate fixedly mounted on the upper end of the electric push rod, a support rod fixedly mounted on the top of the base plate, a limit frame fixedly mounted on the top of the support rod, a rangefinder inserted above the limit frame, a limit post inserted below the limit frame, a limit ring fixedly mounted on the top of the limit post, a limit spring inserted on the outer side of the limit post, and a limit disc fixedly mounted on the bottom end of the limit post; the base plate can support the fixed frame.

[0009] As a preferred embodiment of this utility model, the controller is fixedly installed at the center of the base plate, the height of the fixing frame is lower than the height of the fixed part of the electric push rod, and the touch screen is fixedly connected to the base plate through the fixing frame; the controller can control the extension and retraction of the electric push rod.

[0010] As a preferred embodiment of this utility model, there are four electric actuators, which are installed in a cross shape above the base plate with the center of the base plate as the reference. The support plate is movably connected to the base plate through the electric actuators. The electric actuators can adjust the position of the support plate.

[0011] As a preferred embodiment of this utility model, the support rods are installed symmetrically on the front and rear sides of the base plate with the center of the base plate as a reference, and the front and rear ends of the limiting frame are fixedly connected to the top ends of the support rods on the front and rear sides of the base plate, respectively; the support rods can limit the position of the limiting frame.

[0012] As a preferred technical solution of this utility model, the rangefinder is symmetrically installed on the front and back sides of the limiting frame with the center of the limiting frame as the reference, and the rangefinder vertically penetrates the limiting frame and points to the bottom plate; the rangefinder can monitor the distance between the limiting frame and the limiting plate.

[0013] As a preferred technical solution of this utility model, the limiting post and the limiting frame are connected in a sliding connection. There are five limiting posts, which are respectively installed at the four corners of the limiting frame and the center of the limiting frame. A vertically downward protruding stud is provided at the center of the bottom surface of the limiting ring. The limiting post can restrict the movement direction of the limiting frame.

[0014] As a preferred embodiment of this utility model, the outer diameter of the top end of the limiting ring is larger than the outer diameter of the limiting post. The top end of the limiting spring contacts the bottom surface of the limiting frame, and the bottom end contacts the top surface of the limiting plate. The limiting plate is movably connected to the limiting frame through the limiting post, and the limiting plate is located directly above the support plate. The limiting ring can prevent the limiting post from slipping off the bottom of the limiting frame.

[0015] Compared with the prior art, the present invention provides a thin-walled gear thickness measuring device, which has the following advantages:

[0016] 1. This utility model, through the setting of a limiting plate, allows the rangefinder to monitor the distance between the limiting frame and the limiting plate. When there is no thin-walled gear between the support plate and the limiting plate, the monitoring data of the rangefinder is the measurement zero value after the electric push rod reaches its extension limit. After placing the thin-walled gear above the support plate, due to the influence of the thickness of the thin-walled gear, the distance between the limiting plate and the limiting frame will decrease when the electric push rod reaches its extension limit, and the detection data of the rangefinder will change. The controller calculates the detection data of the rangefinder at this time with the zero value to obtain the thickness of the thin-walled gear and transmits the data to the touch screen. In this method, the height of the thin-walled gear is limited by the support plate during detection, and the limiting plate is pressed tightly above the thin-walled gear by the limiting spring. The thickness of the thin-walled gear directly affects the distance between the limiting plate and the limiting frame after the electric push rod reaches its extension limit, thereby eliminating the positioning operation and improving the measurement efficiency.

[0017] 2. This utility model uses limiting posts to form a sliding connection between the limiting posts and the limiting frame. There are five limiting posts, which are installed at the four corners and the center of the limiting frame. A vertically downward protruding stud is provided at the center of the bottom surface of the limiting ring. The outer diameter of the top of the limiting ring is larger than the outer diameter of the limiting posts. The limiting posts keep the limiting plate in a horizontal state, preventing the limiting plate from tilting due to uneven force during the measurement process. At the same time, the limiting spring presses the limiting plate tightly against the top of the thin-walled gear, and the laser emitted by the rangefinder directly irradiates the top surface of the limiting plate, avoiding the influence of the rangefinder's monitoring data due to the thin wall thickness of the thin-walled gear. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the support plate installation structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the limit frame of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the limiting plate of this utility model;

[0022] The components are: 1. Base plate; 11. Controller; 12. Fixing frame; 13. Touch screen; 14. Electric push rod; 15. Support plate; 16. Support rod; 17. Limiting frame; 18. Rangefinder; 19. Limiting post; 110. Limiting ring; 111. Limiting spring; 112. Limiting disc. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1 - Figure 4 In this embodiment, a thin-walled gear thickness measuring device includes: a base plate 1, a controller 11 fixedly mounted on the top of the base plate 1, a fixing frame 12 fixedly mounted on the top of the base plate 1, a touch screen 13 fixedly mounted on the top of the fixing frame 12, an electric push rod 14 fixedly mounted on the top of the base plate 1, a support plate 15 fixedly mounted on the upper end of the electric push rod 14, a support rod 16 fixedly mounted on the top of the base plate 1, a limit frame 17 fixedly mounted on the top of the support rod 16, a rangefinder 18 inserted above the limit frame 17, a limit post 19 inserted below the limit frame 17, a limit ring 110 fixedly mounted on the top of the limit post 19, a limit spring 111 inserted on the outer side of the limit post 19, and a limit plate 112 fixedly mounted on the bottom end of the limit post 19.

[0027] The controller 11 is fixedly installed at the center of the base plate 1. The height of the mounting bracket 12 is lower than the height of the fixed part of the electric push rod 14. The touch screen 13 is fixedly connected to the base plate 1 through the mounting bracket 12. There are four electric push rods 14, which are installed in a cross shape above the base plate 1 with the center of the base plate 1 as the reference. The support plate 15 is movably connected to the base plate 1 through the electric push rods 14. The support rods 16 are mirror-symmetrically installed on the front and rear sides of the base plate 1 with the center of the base plate 1 as the reference. The front and rear ends of the limiting bracket 17 are fixedly connected to the top ends of the support rods 16 on the front and rear sides of the base plate 1, respectively. The rangefinder 18 is positioned with the center of the limiting bracket 17 as the reference. The rangefinder 18 is symmetrically installed on the front and rear sides of the limiting frame 17 and vertically penetrates the limiting frame 17, pointing towards the base plate 1. The limiting post 19 and the limiting frame 17 are slidably connected. There are five limiting posts 19, which are installed at the four corners and the center of the limiting frame 17 respectively. The bottom surface of the limiting ring 110 is provided with a vertically downward protruding stud. The outer diameter of the top of the limiting ring 110 is larger than the outer diameter of the limiting post 19. The top of the limiting spring 111 contacts the bottom surface of the limiting frame 17 and the bottom end contacts the top surface of the limiting plate 112. The limiting plate 112 is movably connected to the limiting frame 17 through the limiting post 19 and is located directly above the support plate 15.

[0028] Specifically, the touchscreen 13 is model KW300, the electric actuator 14 is model NKLA22B, the rangefinder 18 is model LDM42, the base plate 1 supports the controller 11, the fixing bracket 12 restricts the position of the touchscreen 13, and the controller 11 receives control signals from the touchscreen 13 to control the extension and retraction of the electric actuator 14. The support plate 15 is movably connected to the base plate 1 through the electric actuator 14. When the electric actuator 14 extends, it can drive the support plate 15 to move upward. The support plate 15 can support the thin-walled gear. The support rod 16 restricts the height of the limiting bracket 17, thereby restricting the position of the top of the limiting spring 111. Since the position of the top of the limiting spring 111 is restricted by the limiting bracket 17, when the support plate 15 moves upward to contact the limiting plate 112, it will drive the limiting plate 112 to move upward, compressing the limiting spring 111, causing the limiting spring 111 to contract. The reaction force applied to the limiting plate 112 during contraction keeps it pressed tightly against the upper surface of the support plate 15. Five limiting posts 19 maintain the limiting plate 112 in a horizontal position, preventing tilting due to uneven force. Since the rangefinder 18 penetrates the limiting frame 17, it can monitor the distance between the limiting frame 17 and the limiting plate 112. When there are no thin-walled gears between the support plate 15 and the limiting plate 112, the electric actuator 14 reaches its extension position. After the long limit is reached, the monitoring data of the rangefinder 18 is the measurement zero value. After the thin-walled gear is placed above the support plate 15, due to the influence of the thickness of the thin-walled gear, when the electric push rod 14 reaches the extension limit, the distance between the limit plate 112 and the limit frame 17 will be reduced, and the detection data of the rangefinder 18 will change. The controller 11 calculates the detection data of the rangefinder 18 at this time with the zero value to obtain the thickness of the thin-walled gear, and transmits the data to the touch screen 13.

[0029] In use, the rangefinder 18 can monitor the distance between the limiting frame 17 and the limiting plate 112. When there is no thin-walled gear between the support plate 15 and the limiting plate 112, the monitoring data of the rangefinder 18 is the measurement zero value after the electric actuator 14 reaches its extension limit. After placing the thin-walled gear above the support plate 15, due to the influence of the thickness of the thin-walled gear, the distance between the limiting plate 112 and the limiting frame 17 will decrease when the electric actuator 14 reaches its extension limit, and the detection data of the rangefinder 18 will change. The controller 11 calculates the detection data of the rangefinder 18 at this time with the zero value to obtain the thickness of the thin-walled gear, and transmits the data to the touch screen 13. In this method, the height of the thin-walled gear is limited by the support plate 15 during detection, and the limiting plate 112 is pressed tightly above the thin-walled gear by the limiting spring 111. The thickness of the thin-walled gear... This will directly affect the distance between the limiting plate 112 and the limiting frame 17 after the electric actuator 14 reaches its elongation limit, thereby eliminating the need for positioning operations and improving measurement efficiency. The limiting post 19 and the limiting frame 17 form a sliding connection. There are five limiting posts 19, which are installed at the four corners and the center of the limiting frame 17, respectively. The bottom center of the limiting ring 110 is provided with a vertically downward protruding stud. The outer diameter of the top of the limiting ring 110 is larger than the outer diameter of the limiting post 19. The limiting post 19 keeps the limiting plate 112 in a horizontal state, preventing the limiting plate 112 from tilting due to uneven force during the measurement process. At the same time, the limiting spring 111 presses the limiting plate 112 tightly against the top of the thin-walled gear, and the laser emitted by the rangefinder 18 directly irradiates the top surface of the limiting plate 112, avoiding the influence of the monitoring data of the rangefinder 18 due to the thin wall thickness of the thin-walled gear.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the thickness of thin-walled gears, characterized in that, include: A base plate (1) is provided. A controller (11) is fixedly installed on the top of the base plate (1). A mounting bracket (12) is fixedly installed on the top of the base plate (1). A touch screen (13) is fixedly installed on the top of the mounting bracket (12). An electric push rod (14) is fixedly installed on the top of the base plate (1). A support plate (15) is fixedly installed on the upper end of the electric push rod (14). A support rod (16) is fixedly installed on the top of the base plate (1). A limit frame (17) is fixedly installed on the top of the support rod (16). A rangefinder (18) is inserted above the limit frame (17). A limit post (19) is inserted below the limit frame (17). A limit ring (110) is fixedly installed on the top of the limit post (19). A limit spring (111) is inserted on the outer side of the limit post (19). A limit plate (112) is fixedly installed at the bottom of the limit post (19).

2. The thin-walled gear thickness measuring device according to claim 1, characterized in that: The controller (11) is fixedly installed at the center of the base plate (1). The height of the fixing frame (12) is lower than the height of the fixed part of the electric push rod (14). The touch screen (13) is fixedly connected to the base plate (1) through the fixing frame (12).

3. The thin-walled gear thickness measuring device according to claim 1, characterized in that: There are four electric actuators (14), and the four electric actuators (14) are installed in a cross shape above the base plate (1) with the center of the base plate (1) as the reference. The support plate (15) is movably connected to the base plate (1) through the electric actuators (14).

4. The thin-walled gear thickness measuring device according to claim 1, characterized in that: The support rod (16) is installed symmetrically on the front and back sides of the base plate (1) with the center of the base plate (1) as the reference. The front and back ends of the limiting frame (17) are fixedly connected to the top of the support rod (16) on the front and back sides of the base plate (1), respectively.

5. The thin-walled gear thickness measuring device according to claim 1, characterized in that: The rangefinder (18) is symmetrically installed on the front and back sides of the limiting frame (17) with the center of the limiting frame (17) as the reference, and the rangefinder (18) vertically penetrates the limiting frame (17) and points to the base plate (1).

6. The thin-walled gear thickness measuring device according to claim 1, characterized in that: The limiting post (19) and the limiting frame (17) are connected in a sliding manner. There are five limiting posts (19), which are installed at the four corners of the limiting frame (17) and the center of the limiting frame (17). The bottom surface of the limiting ring (110) is provided with a vertically downward protruding stud.

7. The thin-walled gear thickness measuring device according to claim 1, characterized in that: The outer diameter of the top end of the limiting ring (110) is larger than the outer diameter of the limiting post (19). The top end of the limiting spring (111) contacts the bottom surface of the limiting frame (17), and the bottom end contacts the top surface of the limiting plate (112). The limiting plate (112) is connected to the limiting frame (17) through the limiting post (19), and the limiting plate (112) is located directly above the support plate (15).

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