Detection tool for fully detecting verticality of arc sticking of magnetic shoe

Abstract

The utility model discloses a detection tool for full detection of the arc pasting verticality of a magnetic shoe, which comprises a main body, the main body is provided with a detection track through which a good magnetic shoe can pass, the bottom of the detection track is provided with a detection arc surface, two ends of the detection track are provided with clamping parts capable of positioning the magnetic shoe according to the thickness, the thickness of the magnetic shoe is usually a critical dimension, and the dimension tolerance zone is small. Therefore, the thickness size fluctuation range is relatively small, and the detection precision can be improved through thickness positioning. According to the utility model, the verticality of the magnetic shoe is detected in a pass-through manner, the thickness of the magnetic shoe is positioned through the arranged clamping part, the verticality of the magnetic shoe can be quickly detected, when the magnetic shoe passes through the detection track, the cambered surface of the magnetic shoe is attached to the detection cambered surface due to the limitation of the thickness direction, and a product with poor verticality shifts in the width direction at the moment, so that the verticality of the magnetic shoe is accurately detected. The width between the two opposite angles is increased, and the tool cannot be passed.

Description

Technical Field

[0001] The utility model relates to a fixture, in particular to a fixture for fully inspecting the verticality of the arc of a magnetic tile. Background Art

[0002] Ferrite tile-shaped magnets (hereinafter referred to as magnetic tiles) are important components widely used in motors. The perpendicularity of their inner and outer arc surfaces to the shaft height surface has a crucial impact on the assembly quality of the motor. If the arc perpendicularity of the magnetic tile is poor, it will cause fragmentation problems during the installation process, thus affecting the overall performance and life of the motor.

[0003] In the related art, the measurement of the perpendicularity of magnetic tiles usually adopts the arc gauge detection method and the three-coordinate digital display detection method. However, the arc gauge detection needs to be combined with a feeler gauge to determine the result, which is prone to introducing human errors during the operation process and has low efficiency. Although the three-coordinate digital display detection can accurately quantify the perpendicularity, its equipment cost is high and the detection efficiency is low, which is not suitable for quality control in a large-scale production environment. Content of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a fixture for fully inspecting the verticality of the arc of a magnetic tile, which has low manufacturing cost and high detection efficiency.

[0005] A fixture for fully inspecting the verticality of the arc of a magnetic tile according to the first aspect embodiment of the utility model includes a main body. A detection track for passing qualified magnetic tiles is provided on the main body. The bottom of the detection track has a detection arc surface. Clamping parts for positioning the magnetic tile through its thickness are provided at both ends of the detection track. The thickness of the magnetic tile is usually a key dimension with a small dimensional tolerance zone, so the fluctuation range of the thickness dimension is relatively small. Positioning through the thickness can improve the detection accuracy.

[0006] A fixture for fully inspecting the verticality of the arc of a magnetic tile according to the embodiment of the utility model has at least the following beneficial effects:

[0007] The utility model inspects the perpendicularity of the magnetic tile through a through-type detection. The clamping parts are set to position the magnetic tile through its thickness, and the perpendicularity detection of the magnetic tile can be quickly completed. When the magnetic tile passes through the detection track, due to the limitation in the thickness direction, the arc surface of the magnetic tile will fit with the detection arc surface. At this time, non-conforming products with poor perpendicularity will have an offset in the width direction, resulting in an increase in the width between two diagonals and cannot pass through the tooling.

[0008] According to some embodiments of the utility model, the linear distance between the two clamping parts is equal to the sum of the width of the qualified magnetic tile and the maximum offset amount of the qualified magnetic tile on the detection track.

[0009] Specifically, when it passes through the detection track, due to the limitation in the thickness direction, the arc surface of the good magnetic tile will be close to the detection arc surface, and the arc surface texture of the good magnetic tile will overlap with the arc surface texture of the detection arc surface. Ideally, the arc surface texture of the good magnetic tile is completely parallel to its axial height surface, so the good magnetic tile will not produce a width deviation in the ideal state. However, due to processing errors, the arc surface texture will be offset relative to its axial height surface, causing the good magnetic tile to be offset in the width direction when passing through the detection track. Therefore, when the verticality reaches the limit condition, the increment after the width deviation is calculated, and the width at this time is used as the width of the detection track (that is, the straight-line distance between the two clamping parts). When the verticality exceeds the standard requirements, the width deviation is larger, and it is limited by the width direction of the detection track and cannot pass through the tooling, thereby realizing the verticality detection.

[0010] According to some embodiments of the present invention, a notch is opened at the top of the detection track to reduce the overall weight of the detection fixture.

[0011] According to some embodiments of the present invention, the width of the gap is smaller than the straight-line distance between the two clamping parts, so as to prevent the magnetic tile from falling out of the gap during detection.

[0012] According to some embodiments of the utility model, there is an arc transition section between the notch and the detection track to prevent the magnetic tile from being scratched during detection of the magnetic tile.

[0013] According to some embodiments of the present invention, the bottom of the main body is a plane.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a schematic diagram of the structure of the magnetic tile;

[0017] Figure 2 It is a structural schematic diagram of a testing fixture for fully testing the verticality of the arc of magnetic tiles;

[0018] Figure 3 The schematic diagram of the processing texture of the magnetic tile in the ideal state and the actual state;

[0019] Figure 4 Schematic diagram of the displacement of the magnetic tile in the width direction.

[0020] Figure numerals: 1, shaft height surface; 2, detection arc surface; 3, clamping part. DETAILED DESCRIPTION

[0021] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0022] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0023] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0024] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0025] Referring to Figure 1 , the magnetic tile is an annular structure, and its upper and lower ends have arcs, and there are vertical axial height surfaces 1 at both ends of the magnetic tile.

[0026] Referring to Figure 2 , a fixture for inspecting the arc perpendicularity of a fully inspected magnetic tile, including a main body. A detection track through which a qualified magnetic tile can pass is provided on the main body. The bottom of the detection track has a detection arc surface 2, and clamping parts 3 for positioning the magnetic tile by thickness are provided at both ends of the detection track. The thickness of the magnetic tile is usually a key dimension, and the dimensional tolerance zone is small. Therefore, the fluctuation range of the thickness dimension is relatively small, and the detection accuracy can be improved by positioning through the thickness.

[0027] In this embodiment, the perpendicularity of the magnetic tile is detected by a passing-through method. The thickness positioning of the magnetic tile is achieved through the provided clamping parts 3, and the perpendicularity detection of the magnetic tile can be quickly completed. When the magnetic tile passes through the detection track, due to the limitation in the thickness direction, the arc surface of the magnetic tile will fit with the detection arc surface 2. At this time, non-conforming products with poor perpendicularity will have an offset in the width direction, resulting in an increase in the width between the two diagonals and being unable to pass through the tooling.

[0028] Further, the linear distance between the two clamping portions 3 is equal to the sum of the width of the qualified magnetic tile and the maximum offset amount of the qualified magnetic tile on the detection track.

[0029] Specifically, as Figures 3-4 shown, when the magnetic tile passes through the detection track, due to the limitation in the thickness direction, the arc surface of the magnetic tile will closely adhere to the detection arc surface 2, and the arc surface texture of the magnetic tile coincides with the arc surface texture of the detection track. In an ideal state, the arc surface texture of the qualified magnetic tile is completely parallel to its axial height surface 1. Therefore, in an ideal state, the qualified magnetic tile will not produce an offset in the width direction. However, due to processing errors, the arc surface texture will deviate relative to its axial height surface 1, resulting in the qualified magnetic tile having an offset in the width direction when passing through the detection track. Therefore, when the perpendicularity reaches the limit condition, calculate the increment after the width offset at this time, and use this width as the width of the detection track (i.e., the linear distance between the two clamping portions 3). When the perpendicularity exceeds the standard requirements, the width offset amount is larger. Due to the limitation in the width direction of the detection track, it cannot pass through the tooling, thereby achieving the perpendicularity detection.

[0030] Preferably, a notch is opened at the top of the detection track to reduce the overall weight of the inspection tool.

[0031] In this embodiment, the width of the notch is smaller than the linear distance between the two clamping portions 3 to prevent the magnetic tile from slipping out of the notch during detection.

[0032] Preferably, there is an arc transition section between the notch and the detection track to prevent scratching the magnetic tile during magnetic tile detection.

[0033] Further, the bottom of the main body is a plane.

[0034] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fully inspecting magnetic tile arc verticality inspection tool, comprising a main body, characterized in that: The main body is provided with a detection track through which good magnetic tiles can pass, the bottom of the detection track has a detection arc surface (2), and clamping parts (3) that can position the magnetic tiles according to thickness are provided at both ends of the detection track.

2. The gauge according to claim 1, characterized in that: The straight-line distance between the two clamping parts (3) is equal to the sum of the width of the good magnetic tile and the maximum offset of the good magnetic tile on the detection track.

3. The gauge according to claim 1, characterized in that: A gap is formed at the top of the detection track.

4. The gauge according to claim 3, characterized in that: The width of the notch is smaller than the straight-line distance between the two clamping parts (3).

5. The gauge according to claim 3, characterized in that: There is an arc transition section between the notch and the detection track.

6. The gauge according to claim 1, characterized in that: The bottom of the main body is a plane.

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