Inspection head protection device and roughness tester

Abstract

This utility model belongs to the field of roughness testing technology, and discloses a detection head protection device and a roughness meter. The detection head protection device is used to protect the detection head of a sensor. The device includes a protective shell with a connecting end for connecting to the sensor. The protective shell surrounds the detection head away from the workpiece to be tested, forming a detection channel for accommodating the detection head. The detection channel extends along a first direction to the connecting end. The roughness meter includes a sensor, a detection head, and the aforementioned detection head protection device. The device is connected to the sensor and forms a protective structure around the detection head to prevent accidental damage from collisions with external objects. Simultaneously, the device prevents interference and contamination from external foreign objects, improving the accuracy of the roughness meter.

Description

Technical Field

[0001] This utility model relates to the field of roughness detection technology, and in particular to a detection head protection device and a roughness meter. Background Technology

[0002] Roughness testers, also known as surface roughness meters, surface finish meters, roughness measuring instruments, etc., have the advantages of high measurement accuracy, wide measurement range, simple operation and portability, and are widely used for roughness detection of various metal and non-metal processed surfaces.

[0003] Currently, the detection head of commonly used roughness testers is usually exposed, making it highly susceptible to damage from collisions with surrounding objects during movement or use, thus affecting its usability. Therefore, there is an urgent need to design a protective device to protect the sensor's detection head. Utility Model Content

[0004] The purpose of this invention is to provide a detection head protection device and a roughness meter, which can protect the detection head of the sensor to prevent accidental damage caused by collision with external objects.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A detection head protection device, used to protect the detection head of the sensor, includes:

[0007] A protective shell has a connecting end for connecting to the sensor. The protective shell is used to enclose the detection head away from the workpiece to be tested, thereby forming a detection channel for accommodating the detection head. The detection channel extends along a first direction, and the connecting end is located at one end of the detection channel.

[0008] Preferably, the detection head protection device further includes an end cap, which is disposed on the protective shell opposite to the connecting end along the first direction, and the end cap seals the other end of the detection channel.

[0009] Preferably, the end cap and the protective shell are integrally formed.

[0010] Preferably, the end cap and the protective shell are detachably connected.

[0011] Preferably, the protective shell has an observation port that is connected to the detection channel for observing the detection head in the detection channel.

[0012] Preferably, the detection head protection device further includes a connector, through which the protective shell is detachably connected to the sensor.

[0013] Preferably, the protective shell is provided with a connecting hole that extends through the first direction, the end of the connector extending out of the connecting hole is threaded to the sensor, and the head of the connector is locked in the protective shell.

[0014] Preferably, the side baffle has an abutting end face at the end opposite to the top baffle, and the abutting end face is used to abut against the surface of the workpiece to be tested.

[0015] Preferably, the protective shell includes a top baffle and side baffles connected to both sides of the top baffle. The top baffle is disposed on the side of the detection head away from the workpiece to be tested, and the side baffles extend in a direction perpendicular to the top baffle and together with the top baffle form the detection channel.

[0016] A roughness tester includes a sensor and the aforementioned detection head protection device, wherein the detection head protection device is connected to the sensor and the detection head is located within the detection channel.

[0017] The beneficial effects of this utility model are as follows:

[0018] The detection head protection device provided by this utility model includes a protective shell, which has a connection end for connecting to a sensor, so that the protective shell can be connected to the sensor. The protective shell can surround the outside of the detection head away from the workpiece to be measured, so as to form a detection channel for accommodating the detection head. Since the detection channel extends to the connection end along the first direction, when the roughness tester performs roughness testing on the workpiece to be measured, the detection head can smoothly extend into the detection channel along the first direction through the connection end. And the side of the head away from the workpiece to be measured is surrounded by the protective shell, which can effectively prevent accidental damage from collision with external objects, thereby playing a good protective role for the detection head of the sensor.

[0019] The roughness tester provided by this utility model includes a sensor, a detection head, and a detection head protection device. The detection head protection device is connected to the sensor and can form a protective structure for the detection head to prevent the detection head from being accidentally damaged by collision with external objects. At the same time, the detection head protection device can also prevent external foreign objects from interfering with and contaminating the detection head, thereby improving the detection accuracy of the roughness tester. Attached Figure Description

[0020] Figure 1 This is a first-view structural schematic diagram of the detection head protection device provided in a specific embodiment of this utility model;

[0021] Figure 2 This is a second-view structural schematic diagram of the detection head protection device provided in a specific embodiment of this utility model;

[0022] Figure 3This is a third-view structural diagram of the detection head protection device provided in a specific embodiment of this utility model.

[0023] In the picture:

[0024] 1-Protective shell; 11-Connecting end; 12-Observation port; 13-Connecting hole; 14-Top baffle; 15-Side baffle; 151-Abutting end face; 16-Detection channel;

[0025] 2-End cap. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] like Figures 1 to 2As shown, this utility model provides a detection head protection device for protecting the detection head of a sensor. The device includes a protective shell 1 with a connecting end 11 for connecting to the sensor. The protective shell 1 surrounds the detection head away from the workpiece to form a detection channel 16 for accommodating the detection head. The detection channel 16 extends along a first direction, and the connecting end 11 is located at one end of the detection channel 16. In this embodiment, the protective shell 1 has a connecting end 11 for connecting to the sensor, thus allowing it to be connected to the sensor. The protective shell 1 surrounds the side of the detection head away from the workpiece to form the detection channel 16. Since the detection channel 16 extends along the first direction to the connecting end 11, when the roughness tester performs roughness testing on the workpiece, the detection head can smoothly extend into the detection channel 16 along the first direction through the connecting end 11. The side away from the workpiece is surrounded by the protective shell 1, effectively preventing accidental damage from collisions with external objects, thus providing excellent protection for the sensor's detection head.

[0031] Specifically, the detection head protection device is mainly used to protect the sensor detection head of the roughness tester. The first direction is the length direction of the detection head, and the detection channel 16 extends along the first direction, thus effectively protecting the detection head.

[0032] To further improve the protection of the detection head, such as Figure 2 and Figure 3 As shown, the detection head protection device also includes an end cap 2. Along the first direction, the end cap 2 is disposed opposite to the connecting end 11 on the protective shell 1, and the end cap 2 seals the other end of the detection channel 16. Specifically, since the end cap 2 is connected to the end of the protective shell 1, the end cap 2 can enclose the detection head in the detection channel 16 along the first direction, thereby preventing external objects from bumping into the end of the detection head along the first direction. Specifically, the end cap 2 can be circular, rectangular, or semi-circular, as long as it can enclose the detection head in the detection channel 16; the shape of the end cap 2 is not limited here.

[0033] In this embodiment, to improve the structural strength of the detection head protection device, the end cap 2 and the protective shell 1 are integrally formed. In another embodiment, for ease of later maintenance, the end cap 2 and the protective shell 1 are detachably connected, for example, by bolts or by a snap-fit ​​mechanism with a slot. The specific connection method between the two is not limited here.

[0034] like Figure 1As shown, the protective shell 1 has an observation port 12, which is connected to the detection channel 16 for observing the detection head in the detection channel 16. Therefore, during the detection process, the operator can observe the operation of the detection head in the detection channel 16 to ensure that the detection head moves along the correct path to perform roughness detection on the workpiece. Specifically, the observation port 12 extends through the protective shell 1 and can be rectangular, elliptical, or oblong, etc., as long as it facilitates the operator's observation of the detection head in the detection channel 16. The shape of the observation port 12 is not limited here. In another embodiment, the detection head protection device is made of transparent material, allowing the operator to observe the operation of the detection head in the detection channel 16 from any angle. It is understood that in this embodiment, the observation port 12 may not be provided.

[0035] To facilitate the disassembly and assembly of the detection head protection device, the detection head protection device also includes a connector. The protective shell 1 is detachably connected to the sensor via the connector. Specifically, the connector can be a bolt or a clip, as long as it enables the detachable connection between the detection head protection device and the sensor. The specific structure of the connector is not limited here.

[0036] In this embodiment, as Figure 1 As shown, the protective shell 1 is provided with a connecting hole 13 that extends along the first direction. The end of the connector extending out of the connecting hole 13 is threaded to the sensor, and the head of the connector is stuck in the protective shell 1. The protective shell 1 is connected to the sensor by bolts. The structure is simple and easy to assemble. Specifically, the connector is a bolt, the connecting hole 13 extends through the protective shell 1 along the first direction, and the connecting hole 13 is composed of a coaxial first hole section and a second hole section. The inner diameter of the second hole section is smaller than that of the first hole section. The second hole section is close to the threaded hole on the sensor. Since the inner diameters of the first hole section and the second hole section are different, a stepped groove is formed at the intersection of the first hole section and the second hole section. The rod of the connector passes through the second hole section and is threaded to the sensor. The head of the connector abuts against the stepped groove, thereby fixing the protective shell 1 to the sensor.

[0037] In this embodiment, in order to improve the stability and reliability of the connection between the protective shell 1 and the sensor, two connecting holes 13 are symmetrically opened on the protective shell 1, and two assembly holes are also opened on the end cap 2 opposite to the two connecting holes 13. The inner diameter of the assembly holes is the same as that of the connecting holes 13. When installing the detection head protection device, the operator first inserts the bolt into the connecting hole 13 through the assembly hole, and then tightens the bolt through the assembly hole so that the shank of the bolt is threaded to the sensor until the head of the bolt abuts against the stepped groove of the connecting hole 13.

[0038] like Figures 1 to 3As shown, the protective shell 1 includes a top baffle 14 and side baffles 15 connected to both sides of the top baffle 14. The top baffle 14 is located on the side of the detection head away from the workpiece to be tested. The side baffles 15 extend in a direction perpendicular to the top baffle 14 and together with the top baffle 14 form a detection channel 16. Specifically, the protective shell 1 has a detection channel 16 extending in a first direction. The top wall of the detection channel 16 is the top baffle 14, which is positioned directly opposite the detection head. The two side baffles 15 are respectively connected to both sides of the top baffle 14 to form the side wall of the detection channel 16. The top baffle 14 can be a flat plate or an arc-shaped plate. The top baffle 14 and the side baffles 15 form a U-shaped or concave enclosure structure. An observation port 12 is located on the top baffle 14, and the length direction of the observation port 12 extends in the first direction.

[0039] like Figure 3 As shown, the side baffle 15 has an abutment end face 151 at the end opposite to the top baffle 14. The abutment end face 151 is used to abut against the surface of the workpiece to be tested, thereby ensuring the stability of the roughness tester during testing. Specifically, the abutment end face 151 is a plane. When the workpiece to be tested is tested, the abutment end faces 151 on both sides are attached to the surface of the workpiece to be tested, thereby providing stable and reliable support for the test head. It can be understood that the end face on the end cover 2 near the workpiece to be tested is flush with the abutment end face 151 to ensure the stability of the test head protection device during testing.

[0040] This embodiment also provides a roughness tester, which includes a sensor and the aforementioned detection head protection device. The detection head protection device is connected to the sensor, and the detection head is located within the detection channel 16. In this embodiment, the detection head protection device can form a protective structure for the detection head to prevent accidental damage caused by collisions with external objects. Simultaneously, the detection head protection device can also prevent external foreign objects from interfering with or contaminating the detection head, thereby improving the detection accuracy of the roughness tester.

[0041] Specifically, when the roughness tester is performing a test, the detection head moves along the first direction to collect the roughness of the surface of the workpiece to be tested. The length of the detection channel 16 of the detection head protection device is greater than the moving distance of the detection head to ensure that the roughness tester can successfully complete the roughness test of the surface of the workpiece to be tested.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A detection head protection device for protecting a detection head of a sensor, characterized in that, include: A protective shell (1) has a connecting end (11) for connecting to the sensor. The protective shell (1) is used to surround the detection head away from the workpiece to be tested, so as to form a detection channel (16) for accommodating the detection head. The detection channel (16) extends along a first direction, and the connecting end (11) is located at one end of the detection channel (16). The protective shell (1) has an observation port (12) which is connected to the detection channel (16) for observing the detection head in the detection channel (16).

2. The probe tip protection device of claim 1, wherein The detection head protection device also includes an end cap (2), which is disposed on the protective shell (1) opposite to the connection end (11) along the first direction, and the end cap (2) is sealed at the other end of the detection channel (16).

3. The probe tip protection device of claim 2, wherein, The end cap (2) and the protective shell (1) are integrally formed.

4. The probe tip protection device of claim 2, wherein The end cap (2) and the protective shell (1) are detachably connected.

5. The probe tip protection device of claim 1, wherein The detection head protection device also includes a connector, and the protective shell (1) is detachably connected to the sensor through the connector.

6. The probe tip protection device of claim 5, wherein, The protective shell (1) is provided with a connecting hole (13) that runs through the first direction. The end of the connector that extends out of the connecting hole (13) is threaded to the sensor, and the head of the connector is stuck in the protective shell (1).

7. The probe tip protection device of claim 1, wherein The protective shell (1) has an abutting end face (151) at one end near the workpiece to be tested, and the abutting end face (151) is used to abut against the surface of the workpiece to be tested.

8. The probe tip protection device of any one of claims 1-7, wherein, The protective shell (1) includes a top baffle (14) and side baffles (15) connected to both sides of the top baffle (14). The top baffle (14) is located on the side of the detection head away from the workpiece to be tested. The side baffles (15) extend in a direction perpendicular to the top baffle (14) and together with the top baffle (14) form the detection channel (16).

9. A roughness meter characterized by, Includes a sensor and a detection head protection device as described in any one of claims 1-8, wherein the detection head protection device is connected to the sensor and the detection head of the sensor is located within the detection channel (16).

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