Roughness detection auxiliary clamp for arc surface

Abstract

The utility model relates to an auxiliary fixture for detection equipment, in particular to an auxiliary fixture for roughness detection of an arc surface. Comprising a clamping piece and a positioning piece, a mounting position for mounting roughness detection equipment is arranged in the clamping piece, the positioning piece comprises at least two arc-shaped positioning plates, one end of each arc-shaped positioning plate is connected with the clamping piece, and the shape of one side of each arc-shaped positioning plate corresponds to the shape of an arc surface to be detected. According to the utility model, through combination of the clamping member and the positioning member, the detection device and the arc surface to be detected are relatively fixed, and the arc-shaped positioning plate is adapted to the arc surface to be detected or the workpiece to be detected.

Description

Technical Field

[0001] The utility model relates to an auxiliary fixture of detection equipment, in particular to an auxiliary fixture used for detecting the roughness of an arc surface. Background Art

[0002] Roughness device is also called surface roughness instrument, surface finish instrument, surface roughness detector, roughness measuring instrument, roughness meter, roughness tester and other names. It has the characteristics of high measurement accuracy, wide measurement range, simple operation, easy to carry, stable operation, etc. It can be widely used in the detection of various metal and non-metal processing surfaces. The instrument is a pocket instrument with integrated sensor host, which has the characteristics of handheld and is more suitable for use in production sites. When using it, the instrument needs to be fixed near the surface to be detected, and the probe is in contact with the surface to be detected. During the detection, the probe moves on the surface to be detected, and the roughness of the surface to be detected is calculated through the feedback of the probe movement.

[0003] However, when performing roughness testing on curved surfaces, since the instrument needs to be fixed relative to the surface to be tested, it is generally manually pressed on the surface to be tested or temporarily welded. The former leads to poor detection results and large errors, while the latter affects the structure near the surface to be tested, making subsequent cleaning difficult. Utility Model Content

[0004] Aiming at the shortcomings of existing technologies.

[0005] The purpose of the utility model is to:

[0006] 1. Provide a fixture to fix the roughness testing instrument near the surface to be tested, and focus on optimizing the products with the surface to be tested on the curved surface, so that the test results are stable and reliable, and the fixture and testing instrument are easy to disassemble.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary fixture for roughness detection of arc surfaces, comprising a clamping member and a positioning member, wherein the clamping member has an installation position for installing a roughness detection device, and the positioning member comprises at least two arc-shaped positioning plates, one end of the arc-shaped positioning plate is connected to the clamping member, and the shape of one side of the arc-shaped positioning plate corresponds to the shape of the arc surface to be detected.

[0008] The detection device and the arc surface to be detected are fixed relatively to each other through the combination of the clamping member and the positioning member, and the arc-shaped positioning plate is adapted to the arc-shaped surface to be detected or the workpiece to be detected.

[0009] Preferably, the arc-shaped positioning plate can be designed to be replaceable to adapt to arc-shaped surfaces to be detected of different sizes.

[0010] Optionally, a clamping device is provided on the arc-shaped positioning plate, and the clamping device corresponds to the position of the arc surface.

[0011] Optionally, the clamping device includes a first bolt, and a first threaded through hole is provided on the arc-shaped positioning plate, and the first bolt corresponds to the first through hole.

[0012] When in use, after the arc-shaped positioning plate is inserted into the arc-shaped surface to be detected, the first bolt is rotated to make its end pass through the first through hole and press against the arc-shaped surface to be detected to complete the fastening process.

[0013] Optionally, the clamping member is provided with a fixing member for fixing the roughness detection device, the fixing member includes a second bolt, and the clamping member is provided with a second through hole corresponding to the second bolt, the second through hole is a threaded hole, and the position of the second through hole corresponds to the mounting position.

[0014] The beneficial technical effect of the utility model is that the detection device and the arc surface to be detected are relatively fixed by combining the clamping member and the positioning member, and the arc positioning plate is adapted to the arc surface to be detected or the workpiece to be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 of the utility model;

[0016] Figure 2 This is a schematic diagram of the side structure of Example 1 of the utility model;

[0017] Figure 3 This is a schematic cross-sectional structure diagram of Example 1 of the utility model.

[0018] Figure numerals: 1 - clamping member, 2 - detection device, 3 - arc-shaped positioning plate, 4 - second bolt, 5 - second through hole, 6 - first bolt, 7 - first through hole, 10 - arc surface to be detected. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] Reference Figure 1-3As shown, an auxiliary fixture for roughness detection of arc surfaces includes a clamping member 1 and a positioning member. The clamping member 1 has a mounting position for installing a roughness detection device 2. The positioning member includes at least two arc-shaped positioning plates 3. One end of the arc-shaped positioning plate 3 is connected to the clamping member 1. The shape of one side of the arc-shaped positioning plate 3 corresponds to the shape of the arc surface 10 to be detected.

[0021] The detection device 2 is specifically a roughness detection device, and its principle can refer to the common roughness detection methods on the market, such as the disclosure of the Chinese patent application announcement number: CN108387171B, the invention name is a flexible probe for roughness detection based on capacitance method and its roughness algorithm. Its appearance can refer to the shape proposed in the technical solution disclosed in the Chinese patent authorization announcement number: CN210689509U, the invention name is a roughness detection device.

[0022] The clamping member 1 is provided with a fixing member for fixing the roughness detection device 2, the fixing member includes a second bolt 4, and the clamping member 1 is provided with a second through hole 5 corresponding to the second bolt 4, the second through hole 5 is a threaded hole, and the position of the second through hole 5 corresponds to the installation position.

[0023] The arc-shaped positioning plate 3 is provided with a clamping device, which corresponds to the position of the arc surface, and includes a first bolt 6. The arc-shaped positioning plate 3 is provided with a first threaded through hole 7, and the first bolt 6 corresponds to the first through hole 7.

[0024] The detection device 2 is fixed relative to the arc surface to be detected by combining the clamping member 1 and the positioning member and installing them on the workpiece, and the arc positioning plate 3 is adapted to the arc surface to be detected or the workpiece to be detected. When in use, after the arc positioning plate 3 is inserted into the arc surface to be detected, the first bolt 6 is rotated so that its end passes through the first through hole 7 and is pressed against the arc surface to be detected to complete the fastening process.

[0025] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An auxiliary fixture for detecting the roughness of an arc surface, characterized in that: It includes a clamping member and a positioning member. The clamping member has an installation position for installing a roughness detection device. The positioning member includes at least two arc-shaped positioning plates. One end of the arc-shaped positioning plate is connected to the clamping member. The shape of one side of the arc-shaped positioning plate corresponds to the shape of the arc surface to be detected.

2. The roughness detection auxiliary fixture for arc surface according to claim 1 is characterized in that: The arc-shaped positioning plate is provided with a clamping device, and the clamping device corresponds to the position of the arc surface.

3. The roughness detection auxiliary fixture for arc surface according to claim 2 is characterized in that: The clamping device comprises a first bolt, and a first through hole with threads is provided on the arc-shaped positioning plate, and the first bolt corresponds to the first through hole.

4. The roughness detection auxiliary fixture for arc surface according to claim 1 is characterized in that: The clamping member is provided with a fixing member for fixing the roughness detection device, the fixing member includes a second bolt, and the clamping member is provided with a second through hole corresponding to the second bolt, the second through hole is a threaded hole, and the position of the second through hole corresponds to the installation position.

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