Device for detecting pitch and coaxiality of crotch opening holes of airplane wheel cabin

Abstract

The utility model discloses a detection device, particularly discloses a device for detecting the pitch and coaxiality of crotch opening holes of an airplane wheel cabin, and belongs to the technical field of design and manufacture of airplane part inspection process equipment. The utility model provides the device for detecting the pitch and coaxiality of the crotch opening holes of the airplane wheel cabin, which can be used for quickly and accurately detecting the related shape and position dimensions of the inner holes in the measurement area without opening the outer side space. The detection device comprises a main detection rod group and a detection sliding sleeve group; the detection sliding sleeve group is detachably arranged at one end of the main detection rod group; at least the coaxiality of the crotch opening hole of the airplane wheel cabin is detected through the main detection rod group under the cooperation of the detection sliding sleeve group.

Description

Technical Field

[0001] The utility model relates to a detection device, in particular to a detection device for hole spacing and coaxiality of crotch holes in a wheel bay of an aircraft, and belongs to the technical field of design and manufacturing of aircraft component inspection process equipment. Background Art

[0002] For aircraft wheel bay crotch opening parts, since the spaces on both sides of the intersection hole are not open, the traditional integral coaxiality measuring rod cannot be used to detect the measuring points in the internal area from the outside; when using a conventional measuring rod to measure the crotch opening, it is impossible to ensure that the left and right measuring points are in symmetrical positions, which affects the measurement accuracy. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a device for detecting hole spacing and coaxiality of crotch holes in wheel bays of aircraft, which can quickly and accurately detect relevant shape and position dimensions of holes in a non-open measuring area of ​​the outer space.

[0004] The technical solution adopted to solve the above technical problems is: a detection device for the hole spacing and coaxiality of the wheel bay opening holes of an aircraft, the detection device comprising a main detection rod group and a detection sleeve group, the detection sleeve group being detachably arranged at one end of the main detection rod group; at least the coaxiality of the wheel bay opening holes is detected by the main detection rod group in cooperation with the detection sleeve group.

[0005] Furthermore, the detection device also includes a crotch hole distance detection component group, and the main detection rod group and the detection sleeve group are detachably combined into a whole with the cooperation of the crotch hole distance detection component group. The crotch hole distance is detected simultaneously in the process of detecting the coaxiality of the wheel bay crotch hole by the main detection rod group with the cooperation of the detection sleeve group.

[0006] The preferred embodiment of the above scheme is that the crotch hole spacing detection component group includes a stop pin and a positioning pin, the stop pin is detachably arranged on the main detection rod group along the radial direction, and the detection sleeve group is detachably combined with the main detection rod group into a whole through the positioning pin arranged along the radial direction, and the arrangement positions of the stop pin and the positioning pin on the main detection rod group are adapted to the hole spacing of the wheel bay crotch holes that need to be detected.

[0007] Furthermore, the main detection rod group includes a detection head and a coaxial support and mounting rod. The nominal diameter of the reference hole of the detection head is adapted to the inner diameter of the hole to be detected. The detection head is located at one end of the coaxial support and mounting rod. The stop pin is radially arranged on the coaxial support and mounting rod adapted to the position of the detection head. The detection sleeve group is coaxially arranged with the detection head on the other end of the coaxial support and mounting rod with the cooperation of the radially arranged positioning pins.

[0008] A preferred embodiment of the above scheme is that the detection head includes at least four groups of sub-detection heads whose outer diameters are 0.05mm, 0.10mm, 0.15mm and 0.20mm smaller than the nominal diameter of the corresponding crotch hole reference hole.

[0009] Furthermore, each group of sub-detection heads and the corresponding coaxial support mounting rods are integrally processed structures.

[0010] A preferred embodiment of the above scheme is that the detection sleeve group also includes at least four groups of detection sleeves whose outer diameters are 0.05mm, 0.10mm, 0.15mm and 0.20mm smaller than the nominal diameter of the corresponding crotch hole reference hole, and a locating pin plug-in hole is respectively provided on each group of detection sleeves, and a locating pin plug-in hole is provided on the other end of the coaxial support mounting rod. Each group of detection sleeves is detachably arranged on the other end of the coaxial support mounting rod through the locating pin and the locating pin plug-in hole, and each group of detection sleeves is respectively adapted to the sub-detection head of the corresponding nominal diameter in a one-to-one correspondence.

[0011] The beneficial effects of the utility model are as follows: the technical solution provided by the present application is to set up a set of detection devices including a main detection rod group and a detection sleeve group, and to make the detection sleeve group detachably arranged at one end of the main detection rod group; then in the detection of intersection holes in the detection area where the two outer spaces are not open, such as the wheel well opening of an aircraft, at least the coaxiality of the wheel well opening hole is detected by the main detection rod group in cooperation with the detection sleeve group. The technical problem in the prior art that the two outer spaces of the intersection hole are not open and the existing integral measuring rod cannot be used to measure the shape and position dimensions of the relevant holes from the inner and outer measurement areas in an integral form is solved. The above-mentioned detection device provided by the present application can quickly and accurately detect the relevant shape and position dimensions of the holes in the measurement area where the outer space is not open, which is convenient to operate, has high detection efficiency, and can better guarantee the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the device for detecting the hole spacing and coaxiality of the crotch holes of the wheel bay of an aircraft according to the utility model;

[0013] Figure 2 The utility model is a schematic diagram of the position of the crotch holes of an aircraft wheel bay involved in the detection device for the hole spacing and coaxiality of the crotch holes of an aircraft wheel bay.

[0014] Marked in the figure are: wheel bay opening hole 1, stop pin 2, positioning pin 3, detection head 4, coaxial support mounting rod 5, and detection sleeve 6. DETAILED DESCRIPTION

[0015] like Figure 1 , Figure 2The present invention shows a detection device for the hole spacing and coaxiality of the wheel well opening holes of an aircraft, which can quickly and accurately detect the relevant shape and position dimensions of the holes in the non-open measurement area of ​​the outer space. The detection device comprises a main detection rod group and a detection sleeve group, and the detection sleeve group is detachably arranged at one end of the main detection rod group; at least the coaxiality of the wheel well opening hole 1 is detected by the main detection rod group in cooperation with the detection sleeve group. The technical solution provided by the present application is to set up a set of detection devices including a main detection rod group and a detection sleeve group, and the detection sleeve group is detachably arranged at one end of the main detection rod group; then, in the detection of the intersection holes in the non-open detection area of ​​the two outer spaces such as the wheel well opening of an aircraft, at least the coaxiality of the wheel well opening hole is detected by the main detection rod group in cooperation with the detection sleeve group. The technical problem in the prior art that the existing integral measuring rod cannot be used to measure the shape and position dimensions of the relevant holes from the inner and outer measuring areas in an integral form due to the closed spaces on both sides of the intersection hole in the prior art is solved. The above-mentioned detection device provided in the present application can quickly and accurately detect the relevant shape and position dimensions of the holes in the measuring area where the outer space is not open. The operation is convenient, the detection efficiency is high, and the detection results can be better guaranteed.

[0016] Accordingly, in order to maximize the convenience of operation and to submit the detection efficiency as much as possible, the detection device described in the present application also includes a crotch hole distance detection component group, the main detection rod group and the detection sleeve group are detachably combined into a whole with the cooperation of the crotch hole distance detection component group, and the crotch hole distance is detected simultaneously in the process of detecting the coaxiality of the wheel bay crotch hole by the main detection rod group with the cooperation of the detection sleeve group. At this time, in order to adapt to the structure of the main detection rod group and the detection sleeve group, the crotch hole distance detection component group described in the present application includes a stop pin 2 and a positioning pin 3, the stop pin 2 is detachably arranged on the main detection rod group in the radial direction, and the detection sleeve group is detachably combined with the main detection rod group as a whole through the positioning pin 3 arranged in the radial direction, and the arrangement position of the stop pin 2 and the positioning pin 3 on the main detection rod group is adapted to the hole distance of the wheel bay crotch hole 1 to be detected.

[0017] As mentioned above, in order to maximize the convenience of operation, improve the detection efficiency and the accuracy of detection as much as possible, the main detection rod group described in the present application includes a detection head 4 and a coaxial support and mounting rod 5. The nominal diameter of the reference hole of the detection head 4 is adapted to the inner diameter of the hole to be detected. The detection head 4 is located at one end of the coaxial support and mounting rod 5, and the stop pin 2 is arranged on the coaxial support and mounting rod 5 in a radial direction adapted to the position of the detection head 4. The detection sleeve group is arranged coaxially with the detection head 4 on the other end of the coaxial support and mounting rod 5 with the cooperation of the radially arranged positioning pin 3. The detection sleeve group includes at least four groups of detection sleeves 6 whose outer diameters are 0.05mm, 0.10mm, 0.15mm and 0.20mm smaller than the nominal diameter of the corresponding crotch hole reference hole. A positioning pin plug hole is provided on each group of detection sleeves 6, and a positioning pin plug hole is provided on the other end of the coaxial support mounting rod 5. Each group of detection sleeves 6 is detachably arranged on the other end of the coaxial support mounting rod 5 through the positioning pin 3 and the positioning pin plug hole, and each group of detection sleeves 6 is respectively adapted to the sub-detection head of the corresponding nominal diameter in a one-to-one correspondence. More specifically, the detection head 4 described in the present application includes at least four groups of sub-detection heads whose outer diameters are 0.05mm, 0.10mm, 0.15mm and 0.20mm smaller than the nominal diameter of the corresponding crotch hole reference hole. The preferred structure is that each group of sub-detection heads is an integrally processed structure with the corresponding coaxial support mounting rod 5.

[0018] In summary, the detection device of the present application can not only quickly and accurately measure the coaxiality of the intersection hole of the closed structure, but also can simultaneously detect the end face opening size.

[0019] The technical solution of the present application is further described below through specific embodiments:

[0020] A measuring rod for measuring the coaxiality and crotch opening size of a product. Since the spaces on both sides of the intersection hole are not open, the measuring rod cannot be used from the inside as a whole; when using a conventional measuring rod to measure the crotch opening, it is impossible to ensure that the left and right measuring points are in symmetrical positions, thus affecting the measurement accuracy.

[0021] This measuring rod is composed of a main rod, a sleeve, a stop pin, a positioning pin, etc. After the main rod end is connected to the sleeve, the coaxiality is guaranteed to be 0.01. The main rod end and the sleeve outer diameter are manufactured in groups of 0.05, 0.10, 0.15, and 0.20 smaller than the nominal diameter of the measuring reference hole, and the diameters are marked on the main rod and the sleeve to measure the coaxiality of the intersection hole; the two stop pins are on the same axis, and the outer dimensions of the two stop pins are 2mm smaller than the reference crotch size and calibrated on the tooling. The crotch size is measured in the form of the stop pin measured calibration value + feeler gauge.

[0022] Embodiment 1

[0023] The steps for using a measuring rod to simultaneously measure the wheel bay end face opening size and the opening hole coaxiality are as follows:

[0024] 1. Remove the positioning pin of the measuring rod which is 0.05 smaller than the nominal diameter of the measuring reference hole, and disassemble the main rod and the sliding sleeve;

[0025] 2. Install the main rod and the sliding sleeve from the inside of the wheel bay, and restore the positioning pins to fix the connection;

[0026] 3. Rotate the measuring rod. If the measuring rod can rotate flexibly in the reference hole, the coaxiality of the two reference holes is 0.05. Otherwise, replace measuring rods and sleeves of different diameters in sequence until it can rotate flexibly.

[0027] 4. Adjust the position of the measuring rod to ensure that the stop pin fits tightly with the reference hole on one side;

[0028] 5. Use a feeler gauge to measure the gap between the positioning pin and the reference hole on the other side, and record the measured gap value;

[0029] 6. Calculate the crotch opening size between the two reference holes = the measured calibration value of the stop pin + the measured gap value.

Claims

1. A device for detecting the hole spacing and coaxiality of the crotch holes of an aircraft wheel bay, characterized in that: The detection device comprises a main detection rod group and a detection sleeve group, wherein the detection sleeve group is detachably arranged at one end of the main detection rod group; at least the coaxiality of the wheel bay opening hole (1) is detected by the main detection rod group in cooperation with the detection sleeve group.

2. The device for detecting the hole spacing and coaxiality of the aircraft wheel bay opening holes according to claim 1, characterized in that: The detection device also includes a crotch hole distance detection component group. The main detection rod group and the detection sleeve group can be detachably combined into a whole with the cooperation of the crotch hole distance detection component group. The crotch hole distance is detected simultaneously in the process of detecting the coaxiality of the wheel bay crotch hole by the main detection rod group with the cooperation of the detection sleeve group.

3. The device for detecting the hole spacing and coaxiality of the wheel well opening holes of an aircraft according to claim 2, characterized in that: The crotch hole hole spacing detection component group comprises a stop pin (2) and a positioning pin (3), wherein the stop pin (2) is detachably arranged on a main detection rod group in a radial direction, and the detection sliding sleeve group is detachably combined with the main detection rod group through the positioning pin (3) arranged in the radial direction to form a whole, and the arrangement positions of the stop pin (2) and the positioning pin (3) on the main detection rod group are adapted to the hole spacing of the wheel compartment crotch hole (1) to be detected.

4. The device for detecting the hole spacing and coaxiality of the crotch holes of an aircraft wheel bay according to claim 1, 2 or 3, characterized in that: The main detection rod group comprises a detection head (4) and a coaxial support mounting rod (5), the nominal diameter of the reference hole of the detection head (4) is adapted to the inner diameter of the hole to be detected, the detection head (4) is located at one end of the coaxial support mounting rod (5), a stop pin (2) is arranged on the coaxial support mounting rod (5) in a radial direction adapted to the position of the detection head (4), and the detection sleeve group is arranged coaxially with the detection head (4) on the other end of the coaxial support mounting rod (5) in cooperation with a positioning pin (3) arranged in a radial direction.

5. The device for detecting the hole spacing and coaxiality of the crotch holes of an aircraft wheel bay according to claim 4, characterized in that: The detection head (4) comprises at least four groups of sub-detection heads, the outer diameters of which are 0.05 mm, 0.10 mm, 0.15 mm and 0.20 mm smaller than the nominal diameters of the corresponding crotch hole reference holes.

6. The device for detecting the hole spacing and coaxiality of the wheel bay opening holes of an aircraft according to claim 5, characterized in that: Each group of sub-detection heads and the corresponding coaxial support mounting rod (5) are integrally processed structures.

7. The device for detecting the hole spacing and coaxiality of the wheel bay opening holes of an aircraft according to claim 6, characterized in that: The detection sleeve group also includes at least four groups of detection sleeves (6) whose outer diameters are 0.05 mm, 0.10 mm, 0.15 mm and 0.20 mm smaller than the nominal diameters of the corresponding crotch hole reference holes. A positioning pin insertion hole is provided on each group of detection sleeves (6), and a positioning pin insertion hole is provided on the other end of the coaxial support mounting rod (5). Each group of detection sleeves (6) is detachably arranged on the other end of the coaxial support mounting rod (5) through the positioning pin (3) and the positioning pin insertion hole. Each group of detection sleeves (6) is respectively adapted to a sub-detection head of a corresponding nominal diameter in a one-to-one correspondence.

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