Coating thickness measuring device

Abstract

The utility model discloses a coating thickness measuring device, and belongs to the technical field of thickness measuring devices. The coating thickness measuring device comprises a substrate, a clamping assembly and a thickness gauge, wherein the substrate is arranged parallel to a plating layer to be detected; the clamping assembly comprises a clamping seat and a clamping circular ring piece, the clamping seat is used for being connected to the base plate, a cylindrical through groove is formed in the clamping seat along the Z axis, the clamping circular ring piece is connected to the clamping seat and coaxially located below the cylindrical through groove, and the axis of the cylindrical through groove is perpendicular to the base plate; and the thickness gauge is coaxially arranged in the cylindrical through groove and the clamping ring piece. The coating thickness measuring device can ensure that the axis of the thickness gauge is perpendicular to the to-be-measured coating, and ensure that the perpendicularity between the thickness gauge and the to-be-measured coating meets the measurement requirement, so that the thickness gauge can be completely perpendicular to the to-be-measured coating when being in contact, the measurement deviation can be reduced, the accuracy of the measurement result of the thickness of the to-be-measured coating is ensured, and the measurement accuracy of the to-be-measured coating is improved. And the perpendicularity does not need to be manually adjusted, so that time and labor are saved, and the measurement efficiency is relatively high.

Description

Technical Field

[0001] This utility model relates to the field of thickness measuring device technology, and in particular to a coating thickness measuring device. Background Technology

[0002] During the thickness measurement of the coating on the workpiece, the degree of perpendicularity between the thickness gauge and the coating has a significant impact on the measurement results, since the thickness gauge is in contact with the coating to measure the thickness. Therefore, it is necessary to ensure that the perpendicularity between the thickness gauge and the coating is good.

[0003] However, currently, the perpendicularity between the thickness gauge and the coating is usually ensured by manually adjusting the perpendicularity. This adjustment is time-consuming and labor-intensive, resulting in low measurement efficiency. Furthermore, due to human differences and randomness, the perpendicularity may not meet the measurement requirements, leading to large deviations in the measurement results and making it impossible to guarantee the accuracy of coating thickness measurement.

[0004] To address the above issues, there is an urgent need for a coating thickness measurement device. Utility Model Content

[0005] The purpose of this invention is to provide a coating thickness measuring device that enables high measurement efficiency and ensures that the thickness gauge is completely perpendicular to the coating to be measured when in contact, thereby guaranteeing the accuracy of the measurement results of the coating thickness.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The coating thickness measuring device includes:

[0008] The substrate is placed parallel to the coating to be tested;

[0009] A clamping assembly includes a clamping seat and a clamping ring. The clamping seat is used to connect to the substrate. A cylindrical through groove is provided in the clamping seat along the Z-axis. The clamping ring is connected to the clamping seat and is coaxially located below the cylindrical through groove. The axis of the cylindrical through groove is perpendicular to the substrate.

[0010] The thickness gauge is coaxially placed inside the cylindrical through groove and the clamping ring.

[0011] As an optional solution, the clamping base includes:

[0012] A vertical plate, used for vertical connection to the substrate;

[0013] Two clamping plates are connected relative to each other along the X-axis to the upper part of the vertical plate. The clamping ring is connected to the vertical plate and located below the clamping plates. Each clamping plate is provided with a semi-cylindrical through groove so that the semi-cylindrical through grooves of the two clamping plates are joined together to form the cylindrical through groove.

[0014] As an optional solution, the vertical plate and the clamping plate are integrally formed.

[0015] As an optional solution, the clamping assembly further includes:

[0016] An adjusting member is inserted along the X-axis at the end of the two clamping plates that is not connected to the vertical plate. The adjusting member is used to lock the thickness gauge into the cylindrical through groove, and the adjusting member can also adjust the groove diameter of the cylindrical through groove.

[0017] As an optional solution, the adjusting element includes:

[0018] At least two screws, the screws being threaded through the two clamping plates along the X-axis, and the at least two screws being spaced apart along the Z-axis;

[0019] At least four fastening nuts are provided, and each of the screws protruding from opposite ends of the clamping plate is threaded with a fastening nut, and the fastening nuts are able to abut against the outer side of the clamping plate.

[0020] As an optional solution, the clamping base, the clamping ring, and the adjusting member are all made of non-metallic materials.

[0021] As an optional solution, the vertical plate has an elongated through groove recessed on one side facing the clamping plate. The elongated through groove extends along the Z-axis and is located between the two clamping plates. The axis of the elongated through groove is parallel to the axis of the clamping ring. One end of the clamping ring is detachably connected to the elongated through groove, and the other end of the clamping ring is coaxially located below the cylindrical through groove.

[0022] As an optional solution, the clamping ring is slidably connected to the elongated through groove along the Z-axis and can stop at any position.

[0023] As an optional solution, the coating thickness measuring device further includes:

[0024] A vertical rod and a horizontal rod are provided. One end of the vertical rod is vertically connected to the base plate, and the other end of the vertical rod is vertically and movably connected to one end of the horizontal rod, so that the horizontal rod can move relative to the vertical rod along the Z-axis and along the Y-axis. The other end of the horizontal rod is connected to the clamping seat.

[0025] As an optional feature, the flatness of the substrate is 0.4mm-0.6mm, and the perpendicularity between the substrate and the vertical rod is 0.2mm-0.4mm.

[0026] The beneficial effects of this utility model are as follows:

[0027] By using a clamping base to connect to a substrate, a cylindrical through-slot is provided along the Z-axis within the clamping base, and a clamping ring is connected to the clamping base and located below the cylindrical through-slot. When the thickness gauge is coaxially positioned within the cylindrical through-slot and the clamping ring, the clamping ring is coaxial with the cylindrical through-slot, and the axis of the cylindrical through-slot is perpendicular to the substrate. The substrate is placed parallel to the coating to be measured. That is, under the coaxial positioning effect of the cylindrical through-slot and the clamping ring, the axis of the thickness gauge can be ensured to be perpendicular to the coating to be measured. This ensures that the perpendicularity between the thickness gauge and the coating to be measured meets the measurement requirements, so that the thickness gauge can be completely perpendicular when in contact with the coating to be measured. This reduces measurement deviation and ensures the accuracy of the measurement results of the coating thickness. Furthermore, manual adjustment of perpendicularity is no longer required, saving time and effort and resulting in higher measurement efficiency.

[0028] The thickness gauge is locked into the cylindrical through groove by adjusting the mechanism to prevent circumferential shaking or movement of the gauge within the groove. This ensures the stability of the gauge's position within the groove, guaranteeing the stability and reliability of the gauge's axis being perpendicular to the coating being measured. Furthermore, the adjusting mechanism can also adjust the diameter of the cylindrical through groove, allowing for the coaxial placement of thickness gauges with different outer diameters. This makes the entire clamping assembly adaptable to various thickness gauges with different outer diameters, resulting in good applicability and versatility of the entire coating thickness measurement device.

[0029] By using non-metallic materials for the entire clamping assembly, the thickness gauge probe can be isolated from iron-based components in the surrounding environment. This prevents the iron-based components from causing electromagnetic interference to the thickness gauge probe, thereby eliminating measurement deviations caused by interference from the iron-based components during the measurement process. This helps to avoid large deviations in the measurement results and better ensures the accuracy of the measurement results. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the coating thickness measuring device provided in this utility model;

[0031] Figure 2 This is a schematic diagram of the assembly structure between the crossbar and the clamping assembly provided in this utility model;

[0032] Figure 3 This is a schematic diagram of the clamping component provided in this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Substrate;

[0035] 2-Clamping assembly; 21-Clamping base; 211-Vertical plate; 2111-Elongated through slot; 212-Clamping plate; 2121-Semi-cylindrical through slot; 213-Cylindrical through slot; 22-Clamping ring; 221-Mounting handle; 222-Ring; 23-Adjusting component; 231-Screw;

[0036] 3-Horizontal bar; 4-Vertical bar; 5-Universal joint. Detailed Implementation

[0037] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0038] Any feature disclosed in this specification, unless specifically stated otherwise, may be replaced by other equivalent or similar features. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features. Throughout this specification, the same reference numerals indicate the same elements.

[0039] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] This embodiment proposes a coating thickness measuring device for measuring the thickness of the coating to be measured. This device eliminates measurement deviations caused by differences in human operation techniques during the measurement process, thereby ensuring the accuracy of the coating thickness measurement. Furthermore, the device has a simple structure, low cost, and is easy to operate. Specifically, the coating to be measured refers to a layer deposited on the workpiece, and this coating thickness measuring device can accurately measure its thickness. The specific type of workpiece to be measured is not limited here.

[0041] It is worth noting that the coating thickness measuring device in this embodiment can not only measure the thickness of the coating to be measured, but also measure the thickness of other objects. As long as the thickness measurement requires high perpendicularity, the coating thickness measuring device in this embodiment can be used for thickness measurement. Here, the specific type of other objects is not limited.

[0042] Specifically, such as Figures 1 to 3As shown, the coating thickness measuring device includes a substrate 1, a clamping assembly 2, and a thickness gauge; wherein, the substrate 1 is placed parallel to the coating to be measured; the clamping assembly 2 includes a clamping seat 21 and a clamping ring 22, the clamping seat 21 is used to connect to the substrate 1, and a cylindrical through groove 213 is provided in the clamping seat 21 along the Z-axis, the clamping ring 22 is connected to the clamping seat 21 and is coaxially located below the cylindrical through groove 213, the axis of the cylindrical through groove 213 is perpendicular to the substrate 1; the thickness gauge is coaxially placed in the cylindrical through groove 213 and the clamping ring 22.

[0043] Compared to existing technologies, the coating thickness measuring device in this embodiment adds a coaxially arranged cylindrical through groove 213 and a clamping ring 22. By using a clamping base 21 to connect to the substrate 1, a cylindrical through groove 213 is provided within the clamping base 21 along the Z-axis. The clamping ring 22 is connected to the clamping base 21 and located below the cylindrical through groove 213. When the thickness gauge is coaxially arranged within the cylindrical through groove 213 and the clamping ring 22, since the clamping ring 22 is coaxial with the cylindrical through groove 213 and the cylindrical through groove 213... The axis of the thickness gauge is perpendicular to the substrate 1, and the substrate 1 is placed parallel to the coating to be measured. That is, under the coaxial positioning effect of the cylindrical through groove 213 and the clamping ring 22, the axis of the thickness gauge can be ensured to be perpendicular to the coating to be measured, and the perpendicularity between the thickness gauge and the coating to be measured can meet the measurement requirements. This allows the thickness gauge to be completely perpendicular when it comes into contact with the coating to be measured, thereby reducing measurement deviation and ensuring the accuracy of the measurement result of the thickness of the coating to be measured. Furthermore, there is no need for manual adjustment of the perpendicularity, saving time and effort and making the measurement efficiency higher.

[0044] It is worth noting that the contact between the thickness gauge and the coating being measured mentioned above specifically refers to the direct contact between the thickness gauge probe and the coating, allowing for direct thickness measurement of the coating through the probe. The thickness gauge can be a commonly used thickness gauge structure with a probe, as is available in existing technology.

[0045] Specifically, the aforementioned placement of the substrate 1 parallel to the coating to be tested means that the substrate 1 can be placed horizontally on the coating to be tested. Since the substrate 1 is stably placed on the coating to be tested, it will not move back and forth. Therefore, it can avoid the problem of the substrate 1 damaging the coating to be tested, thus better protecting the structural integrity of the coating to be tested. The substrate 1 can also be placed horizontally on the same marble worktable, parallel to the coating to be tested, to ensure good parallelism between the substrate 1 and the coating to be tested, thereby facilitating the accurate measurement of the coating to be tested by the thickness gauge.

[0046] Furthermore, such as Figures 1 to 3As shown, the clamping base 21 includes a vertical plate 211 and two clamping plates 212; wherein, the vertical plate 211 extends along the Z-axis and is used to vertically connect to the substrate 1; the two clamping plates 212 are connected to the upper part of the vertical plate 211 along the X-axis, and the clamping ring 22 is connected to the vertical plate 211 and located below the clamping plates 212. Each clamping plate 212 is provided with a semi-cylindrical through groove 2121 so that the semi-cylindrical through grooves 2121 of the two clamping plates 212 are joined together to form the above-mentioned cylindrical through groove 213.

[0047] By setting up a clamping seat 21 that includes a vertical plate 211 and two clamping plates 212, the coaxial clamping effect of the thickness gauge can be ensured, while making the structure of the entire clamping seat 21 simple, compact and low-cost.

[0048] Specifically, such as Figures 1 to 3 As shown, the vertical plate 211 and the clamping plate 212 are integrally formed, that is, the vertical plate 211 and the two clamping plates 212 are integrally formed, which simplifies the processing of the entire clamping base 21 and ensures the stability of the connection between the vertical plate 211 and the clamping plate 212. Alternatively, the vertical plate 211 and the clamping plate 212 can be separate structures, but this is not specifically limited here.

[0049] Furthermore, such as Figures 1 to 3 As shown, the clamping ring component 22 includes a mounting handle 221 and a ring component 222. One end of the mounting handle 221 is connected to the vertical plate 211, and the other end of the mounting handle 221 is connected to the ring component 222. The ring component 222 is coaxially located below the cylindrical through groove 213, so that the thickness gauge is coaxially placed within the cylindrical through groove 213 and the ring component 222, thereby ensuring the limiting effect on the thickness gauge. The mounting handle 221 and the ring component 222 can be an integrally formed structure or a separate structure; no specific limitation is made here.

[0050] Specifically, such as Figures 1 to 3 As shown, the clamping assembly 2 also includes an adjusting member 23. The adjusting member 23 passes through the two clamping plates 212 at the ends not connected to the vertical plate 211 along the X-axis. The adjusting member 23 is used to lock the thickness gauge into the cylindrical through groove 213 to prevent the thickness gauge from circumferentially shaking or moving within the cylindrical through groove 213. This ensures the stability of the thickness gauge's position within the cylindrical through groove 213, thereby ensuring the stability and reliability of the thickness gauge's axis being perpendicular to the coating to be measured. Furthermore, the adjusting member 23 can also adjust the groove diameter of the cylindrical through groove 213, allowing thickness gauges of various outer diameters to be coaxially placed within the cylindrical through groove 213. This makes the entire clamping assembly 2 adaptable to various thickness gauges of different outer diameters, thus improving the applicability and versatility of the entire coating thickness measuring device.

[0051] Furthermore, such as Figures 1 to 3 As shown, the adjusting member 23 includes at least two screws 231 and at least four fastening nuts; wherein, the screws 231 threadedly pass through two clamping plates 212 along the X-axis, and at least two screws 231 are spaced apart along the Z-axis; both ends of one screw 231 that protrude from the clamping plate 212 are threadedly connected to fastening nuts, and the fastening nuts can abut against the outer side of the clamping plate 212.

[0052] Specifically, after the thickness gauge is coaxially placed in the cylindrical through groove 213, the fastening nut is tightened so that it abuts against the outer side of the clamping plate 212, thereby locking the fastening nut onto the screw 231 and thus locking the thickness gauge in the cylindrical through groove 213. When it is necessary to adjust the groove diameter of the cylindrical through groove 213, the fastening nut is loosened and moved to a suitable position along the length of the screw 231. Then, the fastening nut is tightened again and abuts against the outer side of the clamping plate 212, thereby adjusting the groove diameter of the cylindrical through groove 213.

[0053] By setting at least two screws 231 and spacing them along the Z-axis, the thickness gauge within the cylindrical through-slot 213 can be simultaneously locked by each screw 231 and its corresponding fastening nut. This ensures a good locking effect on the thickness gauge, preventing easy loosening and guaranteeing its coaxiality within the cylindrical through-slot 213. Furthermore, it improves the guiding and stability during the adjustment of the cylindrical through-slot 213's diameter. In this embodiment, as... Figures 1 to 3 As shown, the adjusting component 23 includes two screws 231 and four fastening nuts.

[0054] Currently, during the thickness measurement of the coating layer by a thickness gauge, the iron-based components in the surrounding environment can easily cause electromagnetic interference to the probe of the thickness gauge, resulting in a large deviation in the measurement results and making it impossible to guarantee the accuracy of the measurement results.

[0055] To address the above issues, the clamping base 21, the clamping ring 22, and the adjusting component 23 are all made of non-metallic materials. That is, the entire clamping assembly 2 is made of non-metallic materials. This isolates the thickness gauge probe from iron-based components in the surrounding environment, preventing electromagnetic interference from these components. This eliminates measurement deviations caused by interference from iron-based components, thus ensuring greater accuracy of the measurement results. In this embodiment, the clamping base 21, the clamping ring 22, and the adjusting component 23 are all made of nylon.

[0056] Furthermore, such as Figures 1 to 3As shown, the vertical plate 211 has an elongated through groove 2111 recessed on one side facing the clamping plate 212. The elongated through groove 2111 extends along the Z-axis and is located between the two clamping plates 212. The axis of the elongated through groove 2111 is parallel to the axis of the ring 222 that clamps the ring 22, and one end of the mounting handle 221 of the ring 22 is detachably connected to the elongated through groove 2111.

[0057] By detachably connecting one end of the mounting handle 221 of the clamping ring 22 to the elongated through groove 2111, the elongated through groove 2111 provides a guiding and limiting function for the mounting handle 221, ensuring that the entire clamping ring 22 can be stably fixed and connected within the elongated through groove 2111, preventing the clamping ring 22 from flipping over, thus ensuring the stability and reliability of the ring 222's axis position. On the other hand, while adjusting the groove diameter of the cylindrical through groove 213 to coaxially place various thickness gauges with different outer diameters within the cylindrical through groove 213, the clamping ring 22 with the corresponding outer diameter can be detached and replaced, ensuring that the thickness gauge can be coaxially placed within the cylindrical through groove 213 and the ring 222, ensuring that the entire clamping assembly 2 can be adapted to various thickness gauges with different outer diameters, thereby improving the applicability and versatility of the entire coating thickness measurement device.

[0058] Furthermore, the clamping ring 22 is slidably connected to the elongated through groove 2111 along the Z-axis and can stop at any position. That is, the mounting handle 221 can be slidably connected to the elongated through groove 2111 along the Z-axis and stop at any position, so as to adjust the specific installation position of the entire clamping ring 22 in the elongated through groove 2111.

[0059] By allowing the clamping ring 22 to slide along the Z-axis within the elongated through groove 2111 and stop at any position, the specific installation position of the clamping ring 22 can be adjusted according to the specific length of the thickness gauge on the Z-axis. This allows the ring 222 to clamp one end of the thickness gauge, and the cylindrical through groove 213 to clamp the other end of the thickness gauge. By limiting the clamping of the two ends of the thickness gauge, the coaxiality of the cylindrical through groove 213, the ring 222, and the thickness gauge can be better ensured, thereby better ensuring that the axis of the thickness gauge is perpendicular to the coating to be measured.

[0060] Furthermore, by allowing the clamping ring 22 to slide along the Z-axis within the elongated through groove 2111 and stop at any position, the specific installation position of the clamping ring 22 can be adjusted according to the specific length of the thickness gauge on the Z-axis. This allows for the coaxial placement of various thickness gauges of different lengths within the cylindrical through groove 213 and the ring 222, ensuring that the entire clamping assembly 2 is adaptable to various thickness gauges of different lengths, thereby improving the applicability and versatility of the entire coating thickness measurement device. In this embodiment, the axis of the thickness gauge specifically refers to the axis of the probe.

[0061] Furthermore, such as Figure 1 and Figure 2 As shown, the coating thickness measuring device also includes a vertical rod 4 and a horizontal rod 3. One end of the vertical rod 4 is vertically connected to the substrate 1, and the other end of the vertical rod 4 is vertically and movably connected to one end of the horizontal rod 3, so that the horizontal rod 3 can move relative to the vertical rod 4 along the Z-axis and along the Y-axis. The other end of the horizontal rod 3 is connected to the vertical plate 211 of the clamping seat 21, and the other end of the horizontal rod 3 passes through the vertical plate 211 and is placed in the elongated through groove 2111, so as to ensure the connection between the horizontal rod 3 and the vertical plate 211, and at the same time, to avoid installation interference between the horizontal rod 3 and the vertical plate 211, and to avoid interference between the horizontal rod 3 and the thickness gauge in the cylindrical through groove 213.

[0062] Specifically, such as Figure 1 and Figure 2 As shown, the vertical rod 4 and the substrate 1 are rigidly connected by interference fit or welding to achieve a fixed connection; and the vertical rod 4 and the horizontal rod 3 are movably connected by a universal joint 5 so that the horizontal rod 3 can move relative to the vertical rod 4 along the Z-axis and along the Y-axis, thereby enabling the entire clamping assembly 2 and the thickness gauge to move along the Z-axis and Y-axis to meet the measurement needs of multiple different points on the coating to be measured.

[0063] Furthermore, the flatness of the substrate 1 is 0.4mm-0.6mm, and the perpendicularity between the substrate 1 and the vertical rod 4 is 0.2mm-0.4mm, so as to ensure that the perpendicularity between the substrate 1 and the vertical rod 4 is good, thereby better ensuring that the axis of the vertical plate 211 and the thickness gauge is perpendicular to the substrate 1, and thus making the perpendicularity between the thickness gauge and the coating to be measured better.

[0064] Specifically, the substrate 1 is formed by cutting steel plate and serves as the fixed base of the entire coating thickness measuring device. The substrate 1 is 100mm long, 80mm wide, and 20mm thick; the vertical rod 4 is 300mm long and 10mm in diameter; the horizontal rod 3 is 200mm long and 10mm in diameter.

[0065] The coating thickness measuring device in this embodiment, by adding a coaxial cylindrical through groove 213 and a clamping ring 22, can eliminate the measurement deviation caused by differences in human operation during the measurement process, thereby ensuring the accuracy of the measurement of the coating thickness.

[0066] In this embodiment, the coating thickness measuring device uses non-metallic materials for the clamping base 21, the clamping ring 22, and the adjusting component 23 to avoid electromagnetic interference from iron-based components to the thickness gauge probe. This eliminates measurement deviations caused by interference from iron-based components to the probe during measurement, thereby better ensuring the accuracy of the coating thickness measurement.

[0067] The coating thickness measuring device in this embodiment, by setting up a clamping base 21, a clamping ring 22, an adjusting member 23, a substrate 1, a horizontal bar 3, and a vertical bar 4, makes the entire coating thickness measuring device simple and compact in structure, low in cost, and makes the thickness measuring operation simple and convenient.

[0068] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A coating thickness measuring device, characterized in that, include: The substrate (1) is placed parallel to the coating to be tested; The clamping assembly (2) includes a clamping seat (21) and a clamping ring (22). The clamping seat (21) is used to connect to the substrate (1). A cylindrical through groove (213) is provided in the clamping seat (21) along the Z-axis. The clamping ring (22) is connected to the clamping seat (21) and is coaxially located below the cylindrical through groove (213). The axis of the cylindrical through groove (213) is perpendicular to the substrate (1). The thickness gauge is coaxially placed in the cylindrical through groove (213) and the clamping ring (22).

2. The coating thickness measuring device as described in claim 1, characterized in that, The clamping seat (21) includes: A vertical plate (211) is used for vertical connection to the substrate (1); Two clamping plates (212) are connected relative to each other along the X-axis to the upper part of the vertical plate (211). The clamping ring (22) is connected to the vertical plate (211) and located below the clamping plates (212). Each clamping plate (212) is provided with a semi-cylindrical through groove (2121) so that the semi-cylindrical through grooves (2121) of the two clamping plates (212) are joined together to form the cylindrical through groove (213).

3. The coating thickness measuring device as described in claim 2, characterized in that, The vertical plate (211) and the clamping plate (212) are integrally formed.

4. The coating thickness measuring device as described in claim 2, characterized in that, The clamping assembly (2) further includes: An adjusting member (23) is inserted along the X-axis at the end of the two clamping plates (212) that is not connected to the vertical plate (211). The adjusting member (23) is used to lock the thickness gauge into the cylindrical through groove (213), and the adjusting member (23) can also adjust the groove diameter of the cylindrical through groove (213).

5. The coating thickness measuring device as described in claim 4, characterized in that, The adjusting member (23) includes: At least two screws (231) are threaded through the two clamping plates (212) along the X-axis, and the at least two screws (231) are spaced apart along the Z-axis; At least four fastening nuts are provided, and the fastening nuts are threaded to both opposite ends of the screw (231) extending out of the clamping plate (212), and the fastening nuts are able to abut against the outer side of the clamping plate (212).

6. The coating thickness measuring device as described in claim 4, characterized in that, The clamping base (21), the clamping ring (22), and the adjusting member (23) are all made of non-metallic materials.

7. The coating thickness measuring device as described in claim 2, characterized in that, The vertical plate (211) has an elongated through groove (2111) recessed on the side facing the clamping plate (212). The elongated through groove (2111) extends along the Z-axis and is located between the two clamping plates (212). The axis of the elongated through groove (2111) is parallel to the axis of the clamping ring (22). One end of the clamping ring (22) is detachably connected to the elongated through groove (2111), and the other end of the clamping ring (22) is coaxially located below the cylindrical through groove (213).

8. The coating thickness measuring device as described in claim 7, characterized in that, The clamping ring (22) is slidably connected to the elongated through groove (2111) along the Z-axis and can stop at any position.

9. The coating thickness measuring device according to any one of claims 1-8, characterized in that, The coating thickness measuring device also includes: A vertical rod (4) and a horizontal rod (3) are provided. One end of the vertical rod (4) is vertically connected to the base plate (1), and the other end of the vertical rod (4) is vertically and movably connected to one end of the horizontal rod (3) so that the horizontal rod (3) can move relative to the vertical rod (4) along the Z-axis and along the Y-axis. The other end of the horizontal rod (3) is connected to the clamping seat (21).

10. The coating thickness measuring device as described in claim 9, characterized in that, The flatness of the substrate (1) is 0.4mm-0.6mm, and the perpendicularity between the substrate (1) and the vertical rod (4) is 0.2mm-0.4mm.

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