Gap measuring assembly

Abstract

The utility model belongs to the technical field of aircraft maintenance, and discloses a gap measuring assembly, which comprises a reference piece and a measuring piece, the reference piece is provided with an arc surface, the arc surface is provided with scale marks extending along a first direction, and the measuring piece is arranged on the reference piece in a sliding manner along the first direction. The measuring piece is provided with a mark for pointing to the scale line, one end of the measuring piece in the first direction is provided with a measuring surface, the corresponding outer diameter of the measuring surface is gradually increased from one end away from the mark to one end close to the mark in the first direction, the arc surface is used for being in contact with one measured surface, and the measuring surface is used for being in contact with the other measured surface; the gap measuring assembly can measure the gap between the two measured surfaces, solves the problem that a traditional feeler gauge cannot measure the two measured surfaces which are curved surfaces, and is accurate and rapid in measurement and convenient to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to aircraft maintenance technical field especially relates to a gap measurement subassembly. BACKGROUND

[0002] In the aircraft zero, the clearance value between two parts is the common engineering requirement, and the measurement of the clearance needs to be ensured accurate and fast. For example, the fixed wing surface and the movable rudder surface need to be connected, and the gap between the fixed wing surface sealing plate and the movable rudder surface leading edge needs to be measured, the sealing plate and the rudder surface leading edge are both large curvature curved surfaces, and the relative gap is small, and the requirement of gap inspection is very strict.

[0003] The existing measuring tool (steel ruler, flat plug ruler, wedge plug ruler etc.) cannot meet the measurement requirement at present, can only put the drill bit or plug gauge of different diameter specifications into the sealing plate and the rudder surface to carry out rolling measurement, has certain limitation, and the time cost of measurement is high, and the operation is inconvenient.

[0004] Therefore, an interval measurement assembly is needed to solve the above problems. UTILITY MODEL CONTENT

[0005] According to one aspect of the utility model, the utility model provides a gap measurement subassembly, can measure the gap between two measured surfaces as curved surfaces, is accurate and fast, and is convenient to operate.

[0006] In order to solve the above problems existing in the prior art, the utility model adopts the following technical scheme:

[0007] A gap measurement subassembly is used for measuring the gap between two measured surfaces, and the gap measurement subassembly comprises:

[0008] A reference element, the reference element has a circular arc surface, and the circular arc surface is provided with a scale line extending along a first direction;

[0009] A measuring element, the measuring element is slidably arranged on the reference element along the first direction, the measuring element is provided with an identifier for pointing to the scale line, and one end of the measuring element along the first direction is provided with a measuring surface, and the measuring surface gradually increases in diameter from one end away from the identifier to one end close to the identifier along the first direction;

[0010] The circular arc surface is used for contacting one of the measured surfaces, and the measuring surface is used for contacting the other measured surface.

[0011] Preferably, the measuring element comprises a measuring part and a main part, the measuring part has the measuring surface, the cross section of the main part is in arc structure, and the main part can slide relative to the reference element along the first direction, so that the measuring part can abut the measured surface.

[0012] Preferably, the reference member is provided with a sliding groove extending along the first direction, and the main body portion is provided with a sliding portion located in the sliding groove and capable of sliding along the extension direction of the sliding groove.

[0013] Preferably, the sliding portion comprises a first sliding portion and a second sliding portion connected with each other, the first sliding portion is located in the sliding groove, the second sliding portion extends out of the sliding groove and is fixedly connected with the main body portion, the sliding groove is provided with a limiting surface along a second direction, the first sliding portion abuts against the limiting surface along the second direction, and the first direction is perpendicular to the second direction.

[0014] Preferably, the gap measuring assembly further comprises a limiting member, and the limiting member is clamped at the end opening of the extension direction of the sliding groove.

[0015] Preferably, the limiting member is provided in two numbers, and the two limiting members are correspondingly sealed at the two end openings of the extension direction of the sliding groove.

[0016] Preferably, the outer periphery of the arc surface is provided with a positioning portion, and the positioning portion is located at one end of the reference member close to the measuring surface along the first direction, and the positioning portion is used for abutting against an end surface perpendicular to the measured surface.

[0017] Preferably, the positioning portion is integrally formed with the reference member.

[0018] Preferably, the central axis of the positioning portion is perpendicular to the central axis of the reference member.

[0019] Preferably, the gap measuring assembly further comprises a display screen and a displacement sensor, the display screen is installed on the measuring member, the displacement sensor is in communication connection with the display screen, the displacement sensor is used for detecting the displacement of the measuring member relative to the reference member, and the display screen is used for displaying the gap between the two measured surfaces.

[0020] The utility model discloses the beneficial effects are:

[0021] The utility model provides a kind of gap measurement assembly, reference element has arc surface, measuring element is slidably arranged in reference element, and one end of measuring element is equipped with measuring surface, and the outer diameter corresponding to the end far from the mark to the end close to the mark of measuring surface gradually increases along the first direction, arc surface is used to contact with one measured surface, and measuring surface is used to contact with another measured surface.Reference element arc surface can be abutted with measured surface and relatively fixed unmoved, to be used as measurement reference, measuring element can slide relative to reference element, so that the measuring surface of measuring element can be abutted on another measured surface, reference element is provided with scale line, corresponding measuring element is provided with mark, and the scale value that mark points according to scale line is the gap between two measured surfaces.The gap measurement assembly can measure the gap between two measured surfaces, solve the situation that traditional plug gauge cannot measure two measured surfaces as curved surface, measure accurate and fast, convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic diagram of gap measurement assembly without display screen for the utility model embodiment one;

[0023] Figure 2 It is the first explosion schematic diagram of gap measurement assembly for the utility model embodiment one;

[0024] Figure 3 It is the second explosion schematic diagram of gap measurement assembly for the utility model embodiment one;

[0025] Figure 4 It is the structure schematic diagram of gap measurement assembly for the utility model embodiment one measured surface of gap being curve;

[0026] Figure 5 It is the section view of gap measurement assembly for the utility model embodiment one measured surface of gap being curve;

[0027] Figure 6 It is the structure schematic diagram of gap measurement assembly with display screen for the utility model embodiment one;

[0028] Figure 7 It is the structure schematic diagram of gap measurement assembly for the utility model embodiment two measured surface of gap being curve;

[0029] Figure 8 It is the section view of gap measurement assembly for the utility model embodiment two measured surface of gap being curve.

[0030] REFERENCE SIGNS:

[0031] 100, measured surface;

[0032] 1, reference element;11, positioning portion;

[0033] 2. arc surface;

[0034] 3. scale line;

[0035] 4. measuring member; 41, measuring part; 42, main body part; 43, sliding part;

[0036] 5. mark;

[0037] 6. measuring surface;

[0038] 7. sliding groove;

[0039] 8. limiting member;

[0040] 9. display screen. DETAILED DESCRIPTION

[0041] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0042] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] In the description of this embodiment, the terms "upper," "lower," "left," and "right," 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.

[0045] Example 1

[0046] like Figures 1-6 As shown, in this embodiment, a gap measuring component is used to measure the gap between two measured surfaces 100. The gap measuring component includes a reference component 1 and a measuring component 4. The reference component 1 has an arc surface 2 with scale lines 3 extending along a first direction. The measuring component 4 is slidably disposed on the reference component 1 along the first direction. The measuring component 4 has a marker 5 pointing to the scale lines 3, and a measuring surface 6 is provided at one end of the measuring component 4 along the first direction. The outer diameter of the measuring surface 6 gradually increases from the end furthest from the marker 5 to the end closest to the marker 5 along the first direction. The arc surface 2 is used to contact one of the measured surfaces 100, and the measuring surface 6 is used to contact the other measured surface 100. Specifically, the first direction is direction AB in the figure. This gap measuring component is suitable for situations where the measured surface 100 is a plane or a curved surface. The reference component 1 has a semi-cylindrical structure, that is, the reference component 1 has an arc surface 2, a sliding plane, and two end faces. The cross-section of the reference component 1 is a semi-circular structure with a radius of R1. In this design, the sliding plane of the reference component 1 slides in conjunction with the measuring component 4. The arc surface 2 of the reference component 1 can abut against the measured surface 100 and remain relatively fixed, serving as the measurement reference. The radius of the end of the measuring surface 6 furthest from the mark 5 is R2, and the radius of the end of the measuring surface 6 closest to the mark 5 is R3. The measuring component 4 can slide relative to the reference component 1, allowing its measuring surface 6 to abut against another measured surface 100. A scale line 3 is provided on the arc surface 2 of the reference component 1, and a mark 5 is provided on the corresponding measuring component 4. The scale value indicated by the mark 5 corresponding to the scale line 3 represents the gap between the two measured surfaces 100. The measurement range of this gap measuring component is greater than or equal to R1+R2 and less than or equal to R1+R3. The relationship between the scale value indicated by the mark 5, the radius of the measuring component 4, and the taper of the measuring surface 6 is: R3-R2 = scale value × taper. This gap measuring component can measure the gap between two measured surfaces 100, solving the problem that traditional feeler gauges cannot measure the gap between two curved surfaces 100. The measurement is accurate, fast, and easy to operate.

[0047] Furthermore, referring to Figures 2-5The measuring member 4 comprises a measuring part 41 and a main body part 42. The measuring part 41 has a measuring surface 6. The main body part 42 has an arc-shaped cross section. The main body part 42 is capable of sliding along a first direction relative to the reference member 1, so that the measuring part 41 can abut against the measured surface 100. The reference member 1 is provided with a sliding groove 7 extending along the first direction. The main body part 42 is provided with a sliding part 43 located in the sliding groove 7 and capable of sliding along the extension direction of the sliding groove 7. The main body part 42 is in sliding connection with the reference member 1 through the cooperation between the sliding part 43 and the sliding groove 7. The reference member 1 is fixed relative to one of the measured surfaces 100 as a measuring reference. The main body part 42 slides relative to the reference member 1, so that the measuring surface 6 of the measuring part 41 abuts against the other measured surface 100. The scale value indicated by the mark 5 is read, and the gap value between the two measured surfaces 100 is obtained.

[0048] Further, referring to Figures 2-3 The sliding part 43 comprises a first sliding part and a second sliding part connected with each other. The first sliding part is located in the sliding groove 7 and slides along the second direction. The second sliding part extends out of the sliding groove 7 and is fixedly connected with the main body part 42. The sliding groove 7 is provided with a limiting surface along the second direction. The first sliding part abuts against the limiting surface along the second direction. The first direction is perpendicular to the second direction. The second direction is the CD direction in the figure. The cross sections of the sliding part 43 and the sliding groove 7 are both T-shaped structures. The sliding part 43 and the sliding groove 7 are in sliding connection with each other, so that the measuring member 4 and the reference member 1 are in sliding connection. Along the direction perpendicular to the sliding direction of the measuring member 4, the T-shaped structure can limit the relative position of the measuring member 4 and the reference member 1, so that the measuring member 4 and the reference member 1 are not easily separated during the sliding process.

[0049] Further, referring to Figures 2-4 The gap measuring assembly further comprises limiting members 8. The limiting members 8 are clamped in the end openings of the sliding groove 7 along the extension direction. The number of the limiting members 8 is two. The two limiting members 8 are correspondingly sealed in the two end openings of the sliding groove 7 along the extension direction. The limiting members 8 are clamped in the ports of the sliding groove 7. Along the sliding direction of the measuring member 4, the limiting members 8 can limit the sliding part 43, so that the sliding part 43 does not slide out of the sliding groove 7, and the reference member 1 and the measuring member 4 are not separated.

[0050] Further, referring to Figures 4-5, the outer periphery of the arc surface 2 is provided with a positioning part 11, which is located at one end of the reference part 1 close to the measuring surface 6 in the first direction, and is used to abut against the end surface perpendicular to the measured surface 100. The positioning part 11 is integrally formed with the reference part 1, and the center axis of the positioning part 11 is perpendicular to the center axis of the reference part 1. The end part of the reference part 11 extends into the gap between the two measured surfaces 100, and the positioning part 11 abuts against the end surface perpendicular to one of the measured surfaces 100. At the same time, under the action of external force, the outer peripheral surface of the reference part 11 always abuts against and is fixed relative to the same measured surface 100, which serves as the measurement reference. Finally, the gap value is obtained through the measuring part 4, which can ensure the accuracy of the measurement result.

[0051] Further, with reference to Figure 6 , the gap measuring assembly further comprises a display screen 9 and a displacement sensor. The display screen 9 is installed on the measuring part 4, and the displacement sensor is in communication connection with the display screen 9. The displacement sensor is used to detect the displacement of the measuring part 4 relative to the reference part 1, and the display screen 9 is used to display the gap between the two measured surfaces 100. The arc surface 2 of the reference part 1 can abut against and be relatively fixed relative to the measured surface 100, which serves as the measurement reference. The measuring part 4 can slide relative to the reference part 1, so that the measuring surface 6 of the measuring part 41 can abut against the other measured surface 100. At the same time, the displacement sensor detects the displacement of the measuring part 4 relative to the reference part 1 in real time. Based on the relationship between the scale value, the taper of the measuring surface 6 and the radius, the gap between the two measured surfaces 100 is displayed on the display screen 9. The reading is convenient and rapid, and the reading error caused by human is avoided.

[0052] The working process of the gap measuring assembly is as follows:

[0053] Firstly, the two ends of the reference part 1 and the two ends of the measuring part 4 are flush one by one, which serves as the initial value of the measurement, and is counted as zero. The same measuring end of the reference part 1 and the measuring part 4 is placed at the gap opening between the two measured surfaces 100. Then, the end part of the reference part 11 extends into the gap between the two measured surfaces 100, and the positioning part 11 can abut against the end surface of one of the measured surfaces 100. The outer peripheral surface of the reference part 11 always abuts against and is fixed relative to the same measured surface 100, which serves as the measurement reference. At the same time, the measuring part 4 and the reference part 1 slide relative to each other through the sliding connection between the sliding part 43 and the sliding groove 7. The main body part 42 slides relative to the reference part 1, so that the measuring surface 6 of the measuring part 41 abuts against the other measured surface 100. The scale value corresponding to the mark 5 on the scale line 3 is the gap between the two measured surfaces 100, or the displacement sensor detects the displacement of the measuring part 4 relative to the reference part 1 in real time, and the display screen 9 displays the numerical value. Finally, the gap between the two measured surfaces 100 is obtained.

[0054] Example two

[0055] The embodiment provides a gap measuring assembly, as shown in the same structure as that in the first embodiment, and the difference is that there is a step difference between the two measured surfaces 100 and the scale line marked as 5 is different. Figures 7-8

[0056] In the embodiment, the arc surface 2 of the reference member 1 can be in abutment with the measured surface 100 and be relatively fixed, and the two ends of the reference member 1 and the two ends of the measuring member 4 are flush with each other, so as to serve as a measurement reference. The measuring member 4 can slide downward relative to the reference member 1, so that the measuring surface 6 of the measuring part 41 can be in abutment with the other measured surface 100, the scale line marked as 5 is selected according to the step difference, and the scale line marked as 5 can be drawn manually, and the scale value corresponding to the scale line 3 is the gap between the two measured surfaces 100 with the step difference.

[0057] Obviously, the above-mentioned embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For the ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.​

Claims

1. A gap measuring assembly for measuring the gap between two measured surfaces (100), characterized in that, The gap measurement component includes: A reference component (1) has an arc surface (2) and the arc surface (2) is provided with a scale line (3) extending in a first direction; Measuring component (4) is slidably disposed on the reference component (1) along the first direction. The measuring component (4) is provided with a mark (5) for pointing to the scale line (3). The measuring component (4) is provided with a measuring surface (6) at one end along the first direction. The outer diameter of the measuring surface (6) gradually increases from the end away from the mark (5) to the end close to the mark (5) along the first direction. The arc surface (2) is used to contact one of the measured surfaces (100), and the measuring surface (6) is used to contact the other measured surface (100).

2. The gap measuring assembly according to claim 1, characterized in that, The measuring component (4) includes a measuring part (41) and a main body part (42). The measuring part (41) has the measuring surface (6). The main body part (42) has an arc-shaped cross-section. The main body part (42) can slide relative to the reference component (1) along the first direction so that the measuring part (41) can abut against the measured surface (100).

3. The gap measuring assembly according to claim 2, characterized in that, The reference member (1) has a groove (7) extending along the first direction. The main body (42) has a sliding part (43) located in the groove (7) and capable of sliding along the extension direction of the groove (7).

4. The gap measuring assembly according to claim 3, characterized in that, The sliding part (43) includes a first sliding part and a second sliding part connected to each other. The first sliding part is slidably located in the groove (7), and the second sliding part extends out of the groove (7) and is fixedly connected to the main body (42). Along the second direction, the groove (7) is provided with a limiting surface, and the first sliding part abuts against the limiting surface along the second direction. The first direction is perpendicular to the second direction.

5. The gap measuring assembly according to claim 3, characterized in that, The gap measuring assembly also includes a limiting member (8), which engages with the end opening of the slide groove (7) in the extension direction.

6. The gap measuring assembly according to claim 5, characterized in that, There are two limiting members (8), and the two limiting members (8) are respectively sealed at both ends of the extension direction of the slide groove (7).

7. The gap measuring assembly according to any one of claims 1-6, characterized in that, A positioning part (11) is provided on the outer periphery of the arc surface (2). Along the first direction, the positioning part (11) is located at one end of the reference member (1) near the measuring surface (6). The positioning part (11) is used to abut against the end face perpendicular to the measured surface (100).

8. The gap measuring assembly according to claim 7, characterized in that, The positioning part (11) is integrally formed with the reference part (1).

9. The gap measuring assembly according to claim 7, characterized in that, The central axis of the positioning part (11) is perpendicular to the central axis of the reference part (1).

10. The gap measuring assembly according to any one of claims 1-6, characterized in that, The gap measuring assembly also includes a display screen (9) and a displacement sensor. The display screen (9) is mounted on the measuring component (4), and the displacement sensor is communicatively connected to the display screen (9). The displacement sensor is used to detect the displacement of the measuring component (4) relative to the reference component (1), and the display screen (9) is used to display the gap between the two measured surfaces (100).

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