Portable high-precision surface roughness measuring instrument

Abstract

This utility model discloses a portable high-precision surface roughness measuring instrument, relating to the technical field of surface roughness measuring equipment. It includes: a measuring instrument body; and a measuring instrument support mechanism, which is used to fix multiple measuring instrument bodies that operate simultaneously. In this utility model, multiple measuring instrument bodies can be fixed and operated simultaneously via the mounting groove on the side of the handgrip in the measuring instrument support mechanism, achieving multi-channel synchronous measurement. Compared to single-group measurement, more measurement data can be acquired in the same time, effectively improving the efficiency of surface roughness measurement. It is particularly suitable for rapid detection of large-area surfaces. The support adjustment mechanism enables synchronous adjustment of the height of the surface contact rollers on both sides, ensuring that the two sets of surface contact rollers maintain a set height and roll smoothly during the measurement process. This provides a uniform and constant measurement reference distance for the measuring instrument body, overcoming probe height fluctuations that may be caused by hand movement.

Description

Technical Field

[0001] This utility model relates to the technical field of surface roughness measuring equipment, and in particular to a portable high-precision surface roughness measuring instrument. Background Technology

[0002] Surface roughness measurement is a crucial step in industrial product inspection, especially vital for quality control in precision manufacturing and machining. Traditional portable roughness measuring instruments typically employ a single probe structure, relying on the operator to move the handheld device across the surface to perform point-by-point measurements. These devices require repeated positioning and multiple operations to complete large-area inspections, resulting in low measurement efficiency. Furthermore, the operator's hand movements are difficult to maintain perfectly steady, and the lack of a reliable dynamic distance stabilization mechanism between the measuring head and the surface easily leads to fluctuations in the measurement distance, directly affecting the accuracy and consistency of roughness data. In addition, dust, oil, or machining debris on the surface, without pre-cleaning measures, can easily interfere with measurement results or scratch the precision probe.

[0003] While existing technologies offer the convenience of handheld measurement, they have significant shortcomings in practical applications: First, the single probe structure cannot achieve multi-point synchronous measurement, and large-area detection is time-consuming and inefficient; second, existing handheld devices lack an effective dynamic height stabilization mechanism, and shaking or surface undulations during operation can easily cause changes in the distance between the probe and the surface, introducing measurement errors. To address these issues, a portable high-precision surface roughness measuring instrument is provided. Utility Model Content

[0004] The purpose of this invention is to provide a portable high-precision surface roughness measuring instrument to solve the problems mentioned in the background art. This instrument has the advantages of multi-channel efficient measurement and ensuring a constant and stable measurement distance, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable high-precision surface roughness measuring instrument, comprising:

[0006] Measuring instrument body;

[0007] A measuring instrument support mechanism is used to fix multiple sets of measuring instrument bodies that work simultaneously. The measuring instrument support mechanism includes a hand handle, and several sets of mounting slots are opened on the side of the hand handle. A cleaning brush is fixedly connected to the side of the hand handle below the mounting slots.

[0008] A support adjustment mechanism is provided above the handgrip. The support adjustment mechanism is used to ensure that the distance between the measuring instrument body and the measuring surface is relatively stable during measurement.

[0009] As a further embodiment of this utility model: the support adjustment mechanism includes a side fixing slide groove, the inner side of which has a locking threaded hole extending to its outer side, a locking screw threadedly connected to the inner side of the locking threaded hole, a fixing arm slidably connected to the inner side of the side fixing slide groove, a locking silicone pad embedded on the side of the fixing arm near the locking threaded hole, two sets of surface contact rollers rotatably connected to the side of the fixing arm near the measuring instrument body, a set of rotating seats adapted and fixedly connected to each set of the fixing arms, a middle slider provided above the hand grip, an adjusting screw rotatably connected to the side of the middle slider, two sets of connecting rotating arms rotatably connected above the middle slider, and a screw hole block fixedly connected above the hand grip.

[0010] As a further improvement of this utility model: an upper auxiliary slide groove is provided above the hand grip, and a slider adapted to the upper auxiliary slide groove is fixedly connected below the middle slider.

[0011] As a further improvement of this utility model, the measuring instrument body is fixedly connected inside the mounting groove.

[0012] As a further improvement of this utility model, each set of hand grips is fixedly connected to a set of side fixing grooves on both sides.

[0013] As a further embodiment of this utility model, the two ends of the connecting arm are respectively rotatably connected to the top of the middle slider and the top of the rotating seat.

[0014] As a further embodiment of this utility model: the inner side of the screw hole block is provided with a threaded hole that is compatible with the adjusting screw, and the adjusting screw is threadedly connected to the inner screw hole of the screw hole block.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, multiple measuring instrument bodies can be fixed and work simultaneously through the mounting groove on the side of the handgrip in the measuring instrument support mechanism, achieving multi-channel synchronous measurement. Compared with single-group measurement, more measurement data can be obtained in the same time, effectively improving the efficiency of surface roughness measurement, and is especially suitable for rapid detection of large-area surfaces.

[0017] 2. In this utility model, the support adjustment mechanism enables precise and synchronous adjustment of the height of the double-sided surface contact rollers. This design ensures that the two sets of surface contact rollers maintain the set height and roll smoothly during the measurement process, providing a unified and constant measurement reference distance for multiple measuring instrument bodies. This fundamentally overcomes the probe height fluctuations that may be caused by hand-held movement, ensuring high accuracy and consistency of all measurements. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the upper auxiliary slide in this utility model;

[0020] Figure 3 This is a schematic diagram of the locking threaded hole in this utility model;

[0021] Figure 4 This is a schematic diagram of the adjusting screw in this utility model.

[0022] In the diagram: 1. Measuring instrument support mechanism; 2. Support adjustment mechanism; 3. Measuring instrument body; 11. Hand grip; 12. Mounting slot; 13. Cleaning brush; 21. Side fixing slide; 22. Locking threaded hole; 23. Locking screw; 24. Upper auxiliary slide; 25. Fixed arm; 26. Locking silicone pad; 27. Surface contact roller; 28. Rotating seat; 29. ​​Middle slider; 210. Adjusting screw; 211. Connecting rotating arm; 212. Screw hole block. 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] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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. The embodiments of this utility model will be described below based on its overall structure.

[0025] Reference Figures 1 to 4 In this embodiment of the utility model, the portable high-precision surface roughness measuring instrument includes: measuring instrument body 3;

[0026] The measuring instrument support mechanism 1 is used to fix multiple sets of measuring instrument bodies 3 that work simultaneously. The measuring instrument support mechanism 1 includes a hand handle 11. Several sets of mounting slots 12 are opened on the side of the hand handle 11. The measuring instrument body 3 is fixedly connected to the inside of the mounting slots 12. A cleaning brush 13 is fixedly connected to the side of the hand handle 11 below the mounting slots 12. The portable high-precision surface roughness measuring instrument can move the cleaning brush 13 on the measuring surface to pre-clean the surface.

[0027] The support adjustment mechanism 2 is located above the hand grip 11. The support adjustment mechanism 2 is used to ensure that the distance between the measuring instrument body 3 and the measuring surface is relatively stable during measurement.

[0028] The above scheme is adopted: multiple measuring instrument bodies 3 are fixed and work simultaneously by the mounting groove 12 on the side of the hand grip 11, realizing multi-channel synchronous measurement. During operation, the hand grip 11 moves on the measuring surface, and the cleaning brush 13 under the mounting groove 12 first contacts and sweeps across the surface to remove dust or particles, providing cleaning conditions for subsequent measurements. The support adjustment mechanism 2 adjusts and maintains a constant distance between the measuring instrument body 3 and the measuring surface in real time, avoiding accuracy deviation caused by distance fluctuations during the measurement process.

[0029] The support adjustment mechanism 2 includes a side fixing slide 21. Each set of hand grips 11 is fixedly connected to a set of side fixing slides 21 on both sides. A locking threaded hole 22 extends from the inner side of the side fixing slide 21 to its outer side. A locking screw 23 is threaded into the inner side of the locking threaded hole 22. A fixing arm 25 is slidably connected to the inner side of the side fixing slide 21. A locking silicone pad 26 is embedded on the side of the fixing arm 25 near the locking threaded hole 22. Two sets of surface contact rollers 27 are rotatably connected to the side of the fixing arm 25 near the measuring instrument body 3. Each set of fixing arms 25... A set of rotating seats 28 is fixedly connected to the adapter. A middle slider 29 is set above the hand grip 11. An adjusting screw 210 is rotatably connected to the side of the middle slider 29. Two sets of connecting arms 211 are rotatably connected to the top of the middle slider 29. A screw hole block 212 is fixedly connected to the top of the hand grip 11. The two ends of the connecting arms 211 are rotatably connected to the top of the middle slider 29 and the top of the rotating seat 28, respectively. A threaded hole that matches the adjusting screw 210 is opened on the inner side of the screw hole block 212. The adjusting screw 210 is threadedly connected to the screw hole on the inner side of the screw hole block 212.

[0030] The above scheme is adopted: by rotating the adjusting screw 210 to engage with the threaded hole of the screw block 212, the middle slider 29 is pushed to move. When the middle slider 29 moves, it drives the two sets of connecting rotating arms 211 to rotate synchronously, which drives the rotating seat 28 to adjust the sliding position of the fixed arm 25 in the side fixed slide groove 21. The surface contact roller 27 on the fixed arm 25 contacts the measuring surface and rolls to maintain the stable measuring distance of the measuring instrument body 3. When the position is adjusted to the right position, tighten the locking screw 23 to press the locking silicone pad 26 onto the surface of the fixed arm 25. The high friction properties of the silicone prevent the fixed arm 25 from sliding in the side fixed slide groove 21, thus achieving position fixation.

[0031] An upper auxiliary slide groove 24 is provided above the hand grip 11, and a slider that matches the upper auxiliary slide groove 24 is fixedly connected below the middle slider 29 to ensure the stability of the movement direction of the middle slider 29.

[0032] The above scheme is adopted: by the engagement and sliding of the upper auxiliary slide groove 24 with the lower slide of the middle slide 29, the middle slide 29 is restricted to linear movement only along the direction of the upper auxiliary slide groove 24, eliminating swaying or deviation, and ensuring the stability of the movement trajectory of the middle slide 29. This design allows the movement of the middle slide 29 driven by the adjusting screw 210 to be synchronously transmitted to the two sets of connecting rotating arms 211 and rotating seat 28, thereby ensuring that the movement of the two sets of fixed arms 25 is consistent, and the contact height of the surface contact roller 27 on the measuring surface is synchronously adjusted to avoid measurement errors caused by unilateral misalignment.

[0033] The working principle of this utility model is as follows: When using this portable high-precision surface roughness measuring instrument, the operator first holds the hand grip 11 and fixes multiple sets of measuring instrument bodies 3 through the mounting groove 12 on the side of the hand grip 11, so that these measuring instrument bodies 3 can be in a ready-to-work state at the same time, and prepare for subsequent multi-channel synchronous measurement.

[0034] Before starting the measurement, the initial distance between the measuring instrument body 3 and the measuring surface needs to be adjusted using the support adjustment mechanism 2. Specifically, the adjustment screw 210 is rotated, and the adjustment screw 210 is engaged with the threaded hole on the inner side of the screw hole block 212 to move the middle slider 29. Since the slider below the middle slider 29 is engaged with the upper auxiliary slide groove 24 above the hand grip 11, the middle slider 29 will move stably along the upper auxiliary slide groove 24, thereby driving the two sets of connecting rotating arms 211 to rotate synchronously. The connecting rotating arms 211 drive the fixed arm 25 to slide in the side fixed slide groove 21 through the rotating seat 28, thereby adjusting the extension length of the fixed arm 25. When the surface contact roller 27 on the fixed arm 25 contacts the measuring surface and reaches a suitable distance, the locking screw 23 is rotated, so that it squeezes the locking silicone pad 26 on the side of the fixed arm 25 through the locking threaded hole 22, and the fixed arm 25 is fixed by friction, thus completing the distance adjustment and fixing before measurement.

[0035] During the measurement process, the operator holds the handle 11 and moves the entire device across the measurement surface. At this time, the cleaning brush 13 located on the side of the handle 11 below the mounting groove 12 will first contact the measurement surface. As the device moves, the cleaning brush 13 will perform preliminary cleaning of dust, particles and other impurities on the measurement surface, providing a clean measurement environment for the measuring instrument body 3. At the same time, the surface contact roller 27 on the fixed arm 25 rolls on the measurement surface. Since the fixed arm 25 has been fixed and the stable movement of the middle slider 29 ensures that the movement of the two sets of fixed arms 25 is consistent, the surface contact roller 27 can always maintain a relatively stable distance between the measuring instrument body 3 and the measurement surface, ensuring that multiple sets of measuring instrument bodies 3 can perform surface roughness measurement synchronously under stable conditions.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A portable high-precision surface roughness measuring instrument, characterized in that, include: Measuring instrument body (3); Measuring instrument support mechanism (1), the measuring instrument support mechanism (1) is used to fix multiple sets of measuring instrument bodies (3) working simultaneously, the measuring instrument support mechanism (1) includes a hand handle (11), the side of the hand handle (11) is provided with several sets of mounting slots (12), and a cleaning brush (13) is fixedly connected to the bottom of the mounting slot (12). A support adjustment mechanism (2) is provided above the hand grip (11). The support adjustment mechanism (2) is used to ensure that the distance between the measuring instrument body (3) and the measuring surface is relatively stable during measurement.

2. The portable high-precision surface roughness measuring instrument according to claim 1, characterized in that, The support adjustment mechanism (2) includes a side fixing slide groove (21). A locking threaded hole (22) extending through to the outside of the side fixing slide groove (21) is provided on its inner side. A locking screw (23) is threaded into the inner side of the locking threaded hole (22). A fixing arm (25) is slidably connected to the inner side of the side fixing slide groove (21). A locking silicone pad (26) is embedded on the side of the fixing arm (25) near the locking threaded hole (22). The fixing arm (25) is close to the measuring instrument. Two sets of surface contact rollers (27) are rotatably connected to one side of the main body (3). Each set of fixed arms (25) is fitted with a set of rotating seats (28). A middle slider (29) is provided above the hand grip (11). An adjusting screw (210) is rotatably connected to the side of the middle slider (29). Two sets of connecting rotating arms (211) are rotatably connected above the middle slider (29). A screw hole block (212) is fixedly connected above the hand grip (11).

3. The portable high-precision surface roughness measuring instrument according to claim 2, characterized in that, The upper auxiliary slide groove (24) is provided above the hand grip (11), and a slider that matches the upper auxiliary slide groove (24) is fixedly connected below the middle slider (29).

4. The portable high-precision surface roughness measuring instrument according to claim 1, characterized in that, The measuring instrument body (3) is fixedly connected to the inside of the mounting groove (12).

5. The portable high-precision surface roughness measuring instrument according to claim 2, characterized in that, Both sides of the hand grip (11) are fixedly connected to the side fixing groove (21).

6. The portable high-precision surface roughness measuring instrument according to claim 2, characterized in that, The two ends of the connecting arm (211) are respectively rotatably connected to the top of the middle slider (29) and the top of the rotating seat (28).

7. The portable high-precision surface roughness measuring instrument according to claim 2, characterized in that, The screw hole block (212) has a threaded hole on its inner side that is compatible with the adjusting screw (210), and the adjusting screw (210) is threadedly connected to the screw hole on the inner side of the screw hole block (212).

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