A lever metering structure with elastic compensation function

Abstract

This utility model discloses a lever dial indicator structure with elastic compensation function, specifically relating to the technical field of lever dial indicator structures. It includes a connecting mechanism, a measuring mechanism, and a lever dial indicator sleeve. The lever dial indicator sleeve is mounted on the side of the connecting mechanism, and a measuring mechanism is located below the lever dial indicator sleeve. The connecting mechanism includes a fixing mechanism and a support assembly, and the support assembly is mounted on the side of the fixing mechanism. The measuring mechanism includes a rotating assembly, a threaded assembly, and an elastic compensation assembly, and the threaded assembly is mounted below the rotating assembly. The elastic compensation assembly is mounted on the side of the threaded assembly, thus constructing an efficient buffer protection mechanism.

Description

Technical Field

[0001] This utility model relates to the field of lever dial indicator structure technology, and more specifically, to a lever dial indicator structure with elastic compensation function. Background Technology

[0002] In industrial fields such as machinery manufacturing, precision machining, and quality inspection, lever dial gauges are core tools for measuring changes in the size and form and position tolerances of objects. They have long relied on rigid mechanical structures to achieve displacement transmission and data feedback. Traditional designs are based on static or low-load measurement scenarios, and their measuring mechanisms mostly adopt fixed connection methods, directly transmitting the size changes of the measured object to the display end through rigid components. This design can meet basic measurement needs in early environments with low accuracy requirements and simple working conditions. However, with the increasing demand of modern industry for high-precision machining, complex curved surface measurement, and dynamic load conditions, the rigid structure of traditional equipment cannot cope with the frequent impact loads, vibration interference, and operational errors that occur during the measurement process, resulting in frequent problems such as probe damage and measurement distortion.

[0003] In the production process, the existing announcement number CN215177499U discloses a lever dial indicator structure, including a lever dial indicator body base. A lever dial indicator positioning pin is threaded onto the outer end of one side of the lever dial indicator body base. A mounting hole is formed on one side of the lever dial indicator body base, and a lever dial indicator sleeve is provided on one side of the mounting hole. A lever dial indicator is mounted on one side of the lever dial indicator sleeve via a connector. A second lever dial indicator positioning pin is connected to the outer end of one side of the lever dial indicator. A measuring mechanism is provided at the lower middle part of the lever dial indicator body base. A positioning groove is formed on the side of the lever dial indicator body base away from the lever dial indicator. The measuring mechanism includes a rotating rod. A mounting groove is formed through the lower side of the lever dial indicator body base. This device can be used to connect magnetic base mounting sleeves of different diameters, and can improve the fixing effect of the lever dial indicator probe, thus improving accuracy. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] The existing lever dial indicator mechanism without elastic compensation lacks an effective buffer protection mechanism. When encountering sudden impact or overload during the measurement process, the size change of the measured object will be directly transmitted to the measuring probe through the rigid structure. Since there is no elastic element to absorb excess displacement, the impact force can easily cause rigid deformation or even breakage of the probe, which seriously affects the service life of the equipment.

[0005] Therefore, a lever-type meter structure with elastic compensation function is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a lever dial indicator structure with elastic compensation function to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lever dial indicator structure with elastic compensation function, comprising a connecting mechanism, a measuring mechanism, and a lever dial indicator sleeve. The lever dial indicator sleeve is mounted on the side of the connecting mechanism, and a measuring mechanism is disposed below the lever dial indicator sleeve. The connecting mechanism includes a fixing mechanism and a support assembly, and a support assembly is mounted on the side of the fixing mechanism. The measuring mechanism includes a rotating assembly, a threaded assembly, and an elastic compensation assembly, and a threaded assembly is mounted below the rotating assembly, and an elastic compensation assembly is mounted on the side of the threaded assembly.

[0008] Preferably, the fixing mechanism includes a first anti-loosening component, a second anti-loosening component, and a positioning pin, wherein the positioning pin is disposed below the first anti-loosening component, and the second anti-loosening component is disposed below the positioning pin.

[0009] Preferably, the bracket assembly includes a bracket plate, a positioning groove, and a connecting recess, wherein the positioning groove is cut into the side of the bracket plate, and the connecting recess is installed on the bottom of the bracket plate.

[0010] Preferably, the first anti-loosening component includes a first anti-loosening bolt, a first anti-loosening washer, and a second anti-loosening washer, wherein the outer diameter surface of the first anti-loosening thread is provided with the first anti-loosening washer, and the side of the first anti-loosening washer is provided with the second anti-loosening washer.

[0011] Preferably, the second anti-loosening component includes a third anti-loosening washer, a fourth anti-loosening washer, and a second anti-loosening bolt, wherein the outer diameter surface of the second anti-loosening bolt is provided with the third anti-loosening washer, and the side of the third anti-loosening washer is provided with the fourth anti-loosening washer.

[0012] Preferably, the rotating assembly includes a fixed shaft, a fixed ring, and a rotating plate, wherein the fixed ring is mounted on the outer diameter surface of the fixed shaft, the rotating plate is mounted on the outer diameter surface of the fixed shaft, and the fixed shaft and the rotating plate are rotatably connected.

[0013] Preferably, the threaded assembly includes a threaded rod, a connecting rod, and a pressing block, with the connecting rod installed below the threaded rod and the pressing block installed on the side of the connecting rod.

[0014] Preferably, the elastic compensation component includes a lever dial indicator probe, a compensation spring, and a fixing plate, wherein the compensation spring is installed on the side of the lever dial indicator probe, and the fixing plate is installed on the side of the compensation spring away from the lever dial indicator probe.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. Compared with the existing technology, the lever dial indicator structure with elastic compensation function has built an efficient buffer protection mechanism through the elastic compensation component. In the elastic compensation component, the lever dial indicator probe is in direct contact with the object being measured. When a sudden impact or overload occurs during the measurement process, the compensation spring connected to it will immediately compress and deform, converting the excess displacement energy into the elastic potential energy of the spring, thereby avoiding the impact force from acting directly on the core measurement component.

[0017] 2. Compared with the prior art, this lever dial indicator structure with elastic compensation function uses an interference fit to precisely embed the positioning pin in the mounting bracket into the positioning hole of the mounting bracket, thereby achieving positioning between the connecting mechanism and the mounting bracket. The first and second anti-loosening components, which are arranged symmetrically at the top and bottom, establish a two-way pre-tightening force constraint structure. Furthermore, the thread engagement of the anti-loosening bolt and the frictional torque generated by the elastic deformation of the washer are superimposed, effectively suppressing the relative displacement between the mounting bracket and the dial indicator structure under vibration. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the connecting mechanism of this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the measuring mechanism of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the elastic compensation component of this utility model.

[0022] The attached figures are labeled as follows: 1. Connecting mechanism; 2. Measuring mechanism; 3. Lever dial indicator sleeve; 4. Fixing mechanism; 5. Support assembly; 6. Rotating assembly; 7. Threaded assembly; 8. Elastic compensation assembly; 9. First anti-loosening assembly; 10. Second anti-loosening assembly; 11. Positioning pin; 12. Support plate; 13. Positioning groove; 14. Connecting recess; 15. First anti-loosening bolt; 16. First anti-loosening washer; 17. Second anti-loosening washer; 18. Third anti-loosening washer; 19. Fourth anti-loosening washer; 20. Second anti-loosening bolt; 21. Fixed shaft; 22. Fixed ring; 23. Rotating plate; 24. Threaded rod; 25. Connecting rod; 26. Top pressure block; 27. Lever dial indicator probe; 28. Compensating spring; 29. ​​Fixing plate. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] As attached Figures 1 to 4 The lever dial indicator structure with elastic compensation function shown includes a connecting mechanism 1, a measuring mechanism 2, and a lever dial indicator sleeve 3. The lever dial indicator sleeve 3 is installed on the side of the connecting mechanism 1, and the measuring mechanism 2 is arranged below the lever dial indicator sleeve 3. The connecting mechanism 1 includes a fixing mechanism 4 and a support assembly 5. The support assembly 5 is installed on the side of the fixing mechanism 4. The measuring mechanism 2 includes a rotating assembly 6, a threaded assembly 7, and an elastic compensation assembly 8. The threaded assembly 7 is installed below the rotating assembly 6, and the elastic compensation assembly 8 is installed on the side of the threaded assembly 7.

[0026] Among them: when the structure is supported and installed as a whole through the connecting mechanism 1, the lever dial indicator sleeve 3 is used to mount the dial indicator, the measuring mechanism 2 is responsible for measuring the flatness of the surface of the object being measured, the fixing mechanism 4 and the bracket assembly 5 constitute the core of the connecting mechanism 1, the former is used to stabilize the installation benchmark, and the latter provides the installation carrier for the measuring mechanism 2. In the measuring mechanism 2, the rotating assembly 6 realizes the flexible adjustment of the measurement direction, the threaded assembly 7 connects the measuring mechanism 2 and the connecting mechanism 1, and the elastic compensation assembly 8 absorbs the impact during the measurement process through the elastic element.

[0027] Example 2

[0028] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0029] In a preferred embodiment, the fixing mechanism 4 includes a first anti-loosening component 9, a second anti-loosening component 10, and a positioning pin 11. The positioning pin 11 is disposed below the first anti-loosening component 9, and the second anti-loosening component 10 is disposed below the positioning pin 11. The first anti-loosening component 9, the positioning pin 11, and the second anti-loosening component 10 in the fixing mechanism 4 form a positioning and anti-loosening system. The positioning pin 11 achieves precise positioning of the connection position between the connecting mechanism 1 and the mounting bracket through an interference fit. The anti-loosening components at the upper and lower ends prevent the lever dial indicator structure from axially moving after being connected to the mounting bracket through the friction torque of the bolts and washers, ensuring that the dial indicator structure maintains positional accuracy under vibration.

[0030] In a preferred embodiment, the support assembly 5 includes a support plate 12, a positioning groove 13, and a connecting recess 14. The positioning groove 13 is carved on the side of the support plate 12, and the connecting recess 14 is installed on the bottom of the support plate 12. In the support assembly 5, the support plate 12 serves as a basic support component, the positioning groove 13 is used to precisely define the installation position of the dial indicator structure and the external mounting bracket, and the connecting recess 14 is connected to the measuring mechanism 2 through a groove structure.

[0031] In a preferred embodiment, the first anti-loosening component 9 includes a first anti-loosening bolt 15, a first anti-loosening washer 16, and a second anti-loosening washer 17. The first anti-loosening washer 16 is provided on the outer diameter surface of the first anti-loosening bolt 15, and the second anti-loosening washer 17 is provided on the side of the first anti-loosening washer 16. The first anti-loosening component 9 adopts a combination of the first anti-loosening bolt 15, the first anti-loosening washer 16, and the second anti-loosening washer 17. By utilizing the frictional force generated by the elastic deformation of the washer and the meshing effect between the bolt thread and the thread of the connected part, a bidirectional anti-loosening effect is formed. The serrated or protruding structure of the washer can be embedded in the connecting surface to further prevent the bolt from rotating.

[0032] In a preferred embodiment, the second anti-loosening component 10 includes a third anti-loosening washer 18, a fourth anti-loosening washer 19, and a second anti-loosening bolt 20. The outer diameter surface of the second anti-loosening bolt 20 is provided with the third anti-loosening washer 18, and the side of the third anti-loosening washer 18 is provided with the fourth anti-loosening washer 19. The second anti-loosening component 10 and the first anti-loosening component 9 form a symmetrical anti-loosening structure. The third anti-loosening washer 18 and the fourth anti-loosening washer 19 cooperate with the second anti-loosening bolt 20 to prevent the dial indicator mechanism from loosening from below through the bolt preload and the frictional damping of the washer.

[0033] In a preferred embodiment, the rotating assembly 6 includes a fixed shaft 21, a fixed ring 22, and a rotating plate 23. The fixed ring 22 is mounted on the outer diameter surface of the fixed shaft 21, and the rotating plate 23 is mounted on the outer diameter surface of the fixed shaft 21. The fixed shaft 21 and the rotating plate 23 are rotatably connected. In the rotating assembly 6, the fixed shaft 21 serves as the rotation center, the fixed ring 22 is used to limit the axial position of the fixed shaft 21, and the rotating plate 23 rotates around the fixed shaft 21 through a bearing or clearance fit to realize the angle adjustment of the measuring mechanism 2, so that the lever dial indicator probe 27 can be aligned with the measured surface in different directions.

[0034] In a preferred embodiment, the threaded assembly 7 includes a threaded rod 24, a connecting rod 25, and a pressing block 26. The connecting rod 25 is installed below the threaded rod 24, and the pressing block 26 is installed on the side of the connecting rod 25. The threaded assembly 7 converts rotational motion into linear motion through the helical pair of the threaded rod 24. The connecting rod 25 transmits axial displacement. The pressing block 26 contacts the object being measured and applies a measuring force. The high-precision thread of the threaded rod 24 ensures the feed accuracy. The end face of the pressing block 26 is designed as a plane to adapt to different measured surfaces.

[0035] In a preferred embodiment, the elastic compensation assembly 8 includes a lever dial indicator probe 27, a compensation spring 28, and a fixing plate 29. The compensation spring 28 is mounted on the side of the lever dial indicator probe 27, and the fixing plate 29 is mounted on the side of the compensation spring 28 away from the lever dial indicator probe 27. In the elastic compensation assembly 8, the lever dial indicator probe 27 is in contact with the object being measured. When the probe is subjected to impact or overload, the compensation spring 28 is compressed and deformed to absorb excess displacement. The fixing plate 29 fixes the other end of the spring and connects to the threaded assembly 7.

[0036] The working process of this utility model is as follows: First, the lever dial indicator structure with elastic compensation function takes the connecting mechanism 1 as the overall support base. The lever dial indicator sleeve 3 installed on its side is used to mount the dial indicator. The measuring mechanism 2 below is responsible for converting the size change of the measured object into a measurable mechanical displacement. The connecting mechanism 1 includes a fixing mechanism 4 and a bracket assembly 5. The fixing mechanism 4 is equipped with a first anti-loosening component 9, which includes a first anti-loosening bolt 15, a first anti-loosening washer 16, and a second anti-loosening washer 17, which cooperate with a positioning pin 11. The second anti-loosening component 10 includes a first anti-loosening bolt 15, a first anti-loosening washer 16, and a second anti-loosening washer 17. The three anti-loosening washers 18, the fourth anti-loosening washers 19, and the second anti-loosening bolts 20 form a three-level positioning and anti-loosening system. The positioning pins 11 achieve precise positioning of the connecting mechanism 1 and the mounting bracket through interference fit. The anti-loosening components at the upper and lower ends prevent axial movement by means of bolt preload and washer friction torque, ensuring positional accuracy under vibration environment. The bracket plate 12 of the bracket assembly 5 serves as the basic load-bearing component. The side positioning groove 13 is used to precisely define the installation position of the measuring mechanism 2 or the external mounting bracket. The lower connecting concave plate 14 is fitted and connected to the measuring mechanism 2 through the groove structure to transmit mechanical load.

[0037] The measuring mechanism 2 consists of a rotating assembly 6, a threaded assembly 7, and an elastic compensation assembly 8. In the rotating assembly 6, the fixed shaft 21 serves as the rotation center, and the fixed ring 22 on the outer diameter surface defines the axial position of the rotating plate 23. The rotating plate 23 rotates around the fixed shaft 21 through bearings or clearance fit, realizing flexible adjustment of the measurement direction, so that the lever dial indicator probe 27 can be aligned with the measured surface in different directions. The threaded rod 24 of the threaded assembly 7 connects the measuring mechanism 2 and the connecting mechanism 1. The lower connecting rod 25 transmits axial displacement, and the side pressure block 26 contacts the measured object with a plane or a specific curved surface and applies a measuring force. In the elastic compensation assembly 8, the lever dial indicator probe 27 contacts the measured object. When subjected to impact or overload, the compensation spring 28 is compressed and deformed to absorb excess displacement. The fixed plate 29 fixes the other end of the spring and connects to the threaded assembly 7 to form an elastic force transmission path. The spring elastic coefficient is designed according to the measurement accuracy to ensure linear compensation within the rated load. The above is the working principle of this lever dial indicator structure with elastic compensation function.

Claims

1. A lever dial indicator structure with elastic compensation function, comprising a connecting mechanism (1), a measuring mechanism (2), and a lever dial indicator sleeve (3), characterized in that: The connecting mechanism (1) is equipped with a lever dial indicator sleeve (3) on its side, and a measuring mechanism (2) is provided below the lever dial indicator sleeve (3). The connecting mechanism (1) includes a fixing mechanism (4) and a bracket assembly (5), and the bracket assembly (5) is installed on the side of the fixing mechanism (4). The measuring mechanism (2) includes a rotating assembly (6), a threaded assembly (7) and an elastic compensation assembly (8), and the threaded assembly (7) is installed below the rotating assembly (6), and the elastic compensation assembly (8) is installed on the side of the threaded assembly (7).

2. The lever dial indicator structure with elastic compensation function according to claim 1, characterized in that: The fixing mechanism (4) includes a first anti-loosening component (9), a second anti-loosening component (10) and a positioning pin (11), and the positioning pin (11) is provided below the first anti-loosening component (9), and the second anti-loosening component (10) is provided below the positioning pin (11).

3. The lever dial indicator structure with elastic compensation function according to claim 2, characterized in that: The bracket assembly (5) includes a bracket plate (12), a positioning groove (13) and a connecting recess (14), and the positioning groove (13) is chiseled on the side of the bracket plate (12), and the connecting recess (14) is installed below the bracket plate (12).

4. The lever dial indicator structure with elastic compensation function according to claim 2, characterized in that: The first anti-loosening component (9) includes a first anti-loosening bolt (15), a first anti-loosening washer (16) and a second anti-loosening washer (17), and the outer diameter surface of the first anti-loosening bolt (15) is provided with the first anti-loosening washer (16), and the side of the first anti-loosening washer (16) is provided with the second anti-loosening washer (17).

5. The lever dial indicator structure with elastic compensation function according to claim 4, characterized in that: The second anti-loosening component (10) includes a third anti-loosening washer (18), a fourth anti-loosening washer (19), and a second anti-loosening bolt (20). The outer diameter surface of the second anti-loosening bolt (20) is provided with the third anti-loosening washer (18), and the side of the third anti-loosening washer (18) is provided with the fourth anti-loosening washer (19).

6. The lever dial indicator structure with elastic compensation function according to claim 4, characterized in that: The rotating assembly (6) includes a fixed shaft (21), a fixed ring (22) and a rotating plate (23), and the fixed ring (22) is installed on the outer diameter surface of the fixed shaft (21), and the rotating plate (23) is installed on the outer diameter surface of the fixed shaft (21), and the fixed shaft (21) and the rotating plate (23) are rotatably connected.

7. The lever dial indicator structure with elastic compensation function according to claim 1, characterized in that: The threaded assembly (7) includes a threaded rod (24), a connecting rod (25) and a top pressure block (26), and the connecting rod (25) is installed below the threaded rod (24), and the top pressure block (26) is installed on the side of the connecting rod (25).

8. The lever dial indicator structure with elastic compensation function according to claim 7, characterized in that: The elastic compensation component (8) includes a lever dial indicator probe (27), a compensation spring (28), and a fixing plate (29). The compensation spring (28) is installed on the side of the lever dial indicator probe (27), and the fixing plate (29) is installed on the side of the compensation spring (28) away from the lever dial indicator probe (27).

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