Blade anti-shake device

Abstract

Provided is a blade anti-shake device, comprising a base, a support shaft, a movable bracket and a fine-tuning mechanism, wherein the support shaft is arranged on the base; the movable bracket is arranged on the support shaft so as to be movable up and down; the fine-tuning mechanism is connected to the movable bracket and arranged to be movable up and down, and the top is used to support the blade. The above device can effectively solve the stripe jitter phenomenon that occurs during measurement.

Description

Technical Field

[0001] The utility model relates to the field of testing, in particular to the field of anti-shake devices. Background Art

[0002] When measuring blades using a blade surface topography measurement device based on white light interferometry, for blades with longer blade bodies, the interference fringes detected by the scanning system experience jitter, making it impossible to accurately obtain the interference fringes and perform three-dimensional reconstruction of the surface topography.

[0003] Therefore, it is necessary to design a blade anti-shake device to eliminate the stripe jitter phenomenon. Utility Model Content

[0004] One purpose of the utility model is to provide a blade anti-shake device, which can effectively solve the stripe shaking phenomenon that occurs during measurement.

[0005] To achieve the above purpose, the blade anti-shake device includes a base, a support shaft, a movable bracket and a fine-tuning mechanism, wherein the support shaft is arranged on the base; the movable bracket is arranged on the support shaft so as to be movable up and down; the fine-tuning mechanism is connected to the movable bracket and is arranged to be movable up and down, and the top is used to support the blade.

[0006] In some embodiments, the fine-tuning mechanism includes a top sleeve located at the top, and the top sleeve contacts the surface of the blade.

[0007] In some embodiments, the device further comprises a fixing sleeve, which is disposed on the movable bracket and sleeved on the outside of the fine-tuning mechanism.

[0008] In some embodiments, the fine-tuning mechanism is threadedly connected to the movable bracket.

[0009] In some embodiments, the device further comprises a locking mechanism for locking the position of the movable bracket relative to the support shaft.

[0010] In some embodiments, the locking mechanism includes a threaded member and a handle, wherein the threaded member passes through the movable bracket and a rear end thereof abuts against the support shaft.

[0011] The blade anti-shake device supports and fine-tunes the blades by means of a fine-adjustable support device, thereby adjusting the stability and smoothness of the blades, thereby keeping the blades stable and avoiding stripe shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0013] Figure 1 is a schematic diagram of an anti-shake device;

[0014] Figure 2 It is a schematic diagram of the fine-tuning mechanism.

[0015] Symbols and Markings

[0016] 1 Base

[0017] 2 Support shaft

[0018] 3 Mobile bracket

[0019] 4 Locking mechanism

[0020] 5 Fixed sleeve

[0021] 6 Fine-tuning mechanism

[0022] 7 Top set

[0023] 40 Handle DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with specific embodiments and drawings. More details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can obviously be implemented in a variety of other ways different from the description. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment.

[0025] It should be noted that these and other subsequent drawings are only examples and are not drawn in proportion, and should not be used as a limitation on the actual scope of protection required by the present utility model.

[0026] The basic principle of obtaining surface morphology by white light interferometry is that a beam of light entering the interference objective is divided into two beams under the action of the beam splitter. The light reflected on the reference plate is called the reference light, and the light incident on the measured surface through the beam splitter is called the test light. The reference light reflected by the reference plate and the test light reflected by the measured surface are combined on the beam splitter. If the interference conditions are met, interference fringes are formed on the surface of the objective and emitted, which are received and imaged by the imaging system, thereby establishing a three-dimensional surface morphology image.

[0027] The basic working process of the blade surface topography measurement device based on white light interferometry is to adjust the position to be measured on the blade so that it is under the objective lens; scan the measured surface to obtain a three-dimensional surface topography image; perform a series of data processing on the acquired image, and then evaluate the blade surface topography parameters.

[0028] Due to the influence of the operation of the measuring device itself and the surrounding environment, when measuring blades longer than 80 mm, the interference fringes detected by the scanning system will jitter, resulting in the inability to accurately obtain the interference fringes and three-dimensionally reconstruct the surface morphology. It is necessary to remove the fringing jitter to complete the measurement process.

[0029] Reference Figure 1 and Figure 2 As shown, the present application provides a shaking device that can effectively solve the stripe shaking phenomenon, including a base 1, a support shaft 2, a movable bracket 3 and a fine-tuning mechanism 6.

[0030] The support shaft 2 is arranged on the base 1, and the movable bracket 3 is arranged on the support shaft 2, which can move along the Figure 1 The fine adjustment mechanism 6 is connected to the movable bracket 3, and the top cover 7 is used to support the blade and contact the surface of the blade. The fine adjustment mechanism 6 is configured to be able to move in the up and down direction and make a small movement, such as a millimeter-level movement.

[0031] After the measurement position is positioned, if jitter occurs, the fine-tuning mechanism 6 is located directly below the blade to be measured, and the extension length of the fine-tuning mechanism 6 relative to the movable bracket 3 is adjusted to adjust the stability and smoothness of the blade until the stripes no longer jitter, and then the measurement process is carried out.

[0032] In some embodiments, the device further comprises a fixed sleeve 5 connected to the mobile bracket 3, and the fine-tuning mechanism 6 is arranged on the fixed sleeve 5 by means of a threaded connection, such as the fixed sleeve 5 comprises an internal thread, and the fine-tuning mechanism 6 comprises an external thread, so that the fine-tuning mechanism can be fine-tuned in the up and down direction, driving the top sleeve 7 to move together. In other embodiments, the fine-tuning mechanism 6 can also be directly threadedly connected to the mobile bracket 3, such as the mobile bracket 3 provides an internal thread hole, and the fine-tuning mechanism 6 comprises an external thread, and the fine-tuning mechanism 6 is realized by means of a threaded connection.

[0033] In some embodiments, the device further comprises a locking mechanism 4 for locking the position of the movable bracket 3 relative to the support shaft 2. Figure 1 In the illustrated embodiment, the locking mechanism 4 includes a screw (not shown) and a handle 40. The screw passes through the movable bracket 3, and the rear end abuts against the support shaft 2. The handle 40 is loosened so that the bracket 3 can move up and down along the support shaft 2, and the handle 40 is tightened to fix the movable bracket 3 on the support shaft 2.

[0034] The steps for using the above-mentioned blade anti-shake device are as follows. After the measurement position is positioned, if the blade is found to have stripe shaking, place the device directly below the measurement position. Loosen the locking mechanism 4 so that the bracket 3 can move up and down along the support shaft 2, and adjust the height of the bracket 3 according to the height of the blade so that the distance between the blade measurement position and the top sleeve 7 is within the fine-tuning range. Then tighten the locking mechanism 4, rotate the fine-tuning mechanism 6, drive the top sleeve 7 to move up and down, so that the top sleeve 7 contacts the blade surface, and fine-tune the position of the top sleeve 7 until the stripes no longer shake, and then measure again.

[0035] The anti-shake device, as a support device with fine-tunable length, can effectively solve the interference fringe jitter problem that is prone to occur when measuring the surface morphology of blades using white light interferometry, so that the interference fringes can be successfully acquired by the scanning system to complete the measurement process.

[0036] The present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or multiple times in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0037] Although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the utility model. Therefore, any modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model shall fall within the protection scope defined by the claims of the utility model.

Claims

1. A blade anti-shake device, characterized in that: The device includes: Base; A support shaft, arranged on the base; A movable bracket is disposed on the support shaft so as to be movable up and down; and The fine-adjustment mechanism is connected to the movable bracket and is configured to be able to move up and down, and the top is used to support the blades.

2. The blade anti-shake device according to claim 1, characterized in that: The fine adjustment mechanism comprises a top sleeve located at the top, and the top sleeve contacts the surface of the blade.

3. The blade anti-shake device according to claim 1, characterized in that: The device also includes a fixed sleeve, which is arranged on the movable bracket and sleeved on the outside of the fine-tuning mechanism.

4. The blade anti-shake device according to claim 1, characterized in that: The fine-adjusting mechanism is threadedly connected to the movable bracket.

5. The blade anti-shake device according to claim 1, characterized in that: The device also includes a locking mechanism for locking the position of the movable bracket relative to the supporting shaft.

6. The blade anti-shake device according to claim 5, characterized in that: The locking mechanism comprises a threaded member and a handle. The threaded member passes through the movable bracket, and the rear end thereof abuts against the support shaft.

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