CN215967494U - Boring and inspection clamp for airplane steering engine installation model - Google Patents
Boring and inspection clamp for airplane steering engine installation model Download PDFInfo
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- CN215967494U CN215967494U CN202121316093.0U CN202121316093U CN215967494U CN 215967494 U CN215967494 U CN 215967494U CN 202121316093 U CN202121316093 U CN 202121316093U CN 215967494 U CN215967494 U CN 215967494U
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Abstract
The utility model belongs to the technology of aircraft tool manufacturing, and particularly relates to a boring and inspection clamp for an aircraft steering engine installation model. Because the installation state of the steering engine installation model is equal to that of a steering engine real part, the machining of all sizes can not be finished by one-time clamping even if the machining of the whole shape of the numerical control machine tool is used, and the machining can be finished by multiple times of alignment references. The platform is symmetrically provided with a pair of positioning and clamping components, the main body of each positioning and clamping component is a positioning support, the inner surface of each positioning support is used for positioning a vertical plane, each positioning support is provided with a pair of positioning pin holes and a positioning hole for positioning a boring hole, the bottom of the inner side of each positioning support is provided with a positioning block for positioning a horizontal plane, and the side surface of each positioning block is provided with an adjustable pressing component; the boring and inspection fixture further comprises a positioning pin and an inspection pin. The requirement on the coaxiality of every two of the 6 threaded holes can be well met; the dimensional accuracy meets the design requirement after the processing is finished, and the using effect is obvious.
Description
Technical Field
The utility model belongs to the technology of aircraft tool manufacturing, and particularly relates to a boring and inspection clamp for an aircraft steering engine installation model.
Background
The steering engine installation model is a simulated fake piece produced by simulating the finished steering engine on a machine, restores real steering engine parts according to the proportion of 1:1, and has the following functions: 1) the device is used for adjusting the pull rod assembly in the aircraft control box; 2) prevent that the true piece from receiving the damage because of the too big messenger of pulling force in the timing process.
Because the installation state of the steering engine installation model is equal to that of a steering engine real part, the design precision is very high, the traditional manufacturing scheme adopts a numerical control machine tool to directly machine and form, but the model is complex in shape, and even if the machining of all sizes cannot be finished by one-time clamping with the help of the numerical control machine tool, the machining can be finished by repeatedly aligning the reference. Stress deformation generated in the machining process and errors generated by artificial alignment reference can influence the machining precision of the model to a certain degree, so that the dimensional precision of the model after machining is often not up to the standard. Therefore, an effective machining method is needed to ensure the dimensional accuracy of the steering engine installation model.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a boring hole and a checking fixture of an airplane steering engine mounting model, and aims to solve the problem that the steering engine mounting model provided in the background technology is not ideal in machining precision.
The technical scheme of the utility model is as follows: a boring and inspection clamp for an airplane steering engine installation model is characterized in that a pair of positioning and clamping components are symmetrically arranged on a platform, the main body of each positioning and clamping component is a positioning support, the inner surface of the positioning support is used for positioning a vertical plane, a pair of positioning pin holes and a positioning hole for positioning the boring position are formed in the positioning support, a positioning block for positioning the horizontal plane is arranged at the bottom of the inner side of the positioning support, and an adjustable pressing component is arranged on the side surface of the positioning block; the boring and inspection clamp further comprises a positioning pin and an inspection pin, and the steering engine installation model is positioned through the positioning pin and the positioning pin hole; the inspection pin has a standard thread at its end, and the threaded hole of the installation pattern after completion of the thread machining or the installation pattern after use is inspected by the inspection pin.
Furthermore, the positioning support is provided with a positioning plate in the vertical direction and an installation seat in the horizontal direction, the installation seat is positioned through a cylindrical pin, and the installation seat is fixed on the platform through an inner hexagonal bolt.
Furthermore, the platform is formed by welding a flat plate at the upper part, a channel steel at the middle part and a bottom plate at the bottom.
Further, the pair of positioning supports comprises a positioning support A and a positioning support B, and the opposite surfaces of the positioning support A and the positioning support B are parallel.
Further, the positioning pin is fixed on the positioning support through a nut with a shoulder.
Further, the compressing assembly comprises a screw rod, a cushion block, a pressing block and a knurled nut, wherein one end of the pressing block is pressed at the upper end part of the cushion block, the other end of the pressing block is a pressing head, a waist-shaped groove is formed in the middle of the pressing block, one end of the screw rod is fixed on the platform, and the other end of the screw rod is connected with the knurled nut after penetrating through the waist-shaped groove.
Further, the boring and inspection clamp further comprises a handheld gasket for detecting a gap between the installation model and the positioning support after positioning.
The utility model has the beneficial effects that: 1) only once alignment is needed to be carried out on the datum in three directions of the fixture, and the positioning block, the positioning pin and the positioning support of the fixture are used for quickly positioning three datum planes of the model, so that the effect of quickly converting the machining datum is achieved; 2) the positioning threaded holes of the model are finely processed by aligning the three positioning holes on the positioning support, so that the requirement on the coaxiality of every two of 6 threaded holes can be well met;
3) by aligning the reference holes on the two sides of the positioning support, the requirement on the coaxiality of every two of 8 unthreaded hole positioning holes in the longitudinal direction of the model (vertical to the axial direction of a threaded hole of the model) can be well met; 4) after the model is used, the key size (such as the coaxiality requirement of a positioning threaded hole and incapability of detecting three coordinates) of the model can be regularly checked, and the key size of the model is ensured to meet the requirement of a drawing in a service life. The clamp has the characteristics of simple and reasonable structure and convenience and quickness in operation, the size precision meets the design requirement after the model is machined, and the use effect is obvious.
Drawings
The illustrative examples, as well as a preferred mode of use, further objectives, and descriptions thereof, will best be understood by reference to the following detailed description of an example of the present invention when read in conjunction with the accompanying drawings, wherein:
fig. 1 is a perspective view of the present invention.
Fig. 2 is a cross-sectional view of the adaptor plate and worktop of the present invention.
Fig. 3 is a partial sectional view of the positioning support B.
The reference numbers of the components in the drawings are as follows: 1-a platform; 101-a flat plate; 102-a channel steel; 103-a backplane; 2-positioning the support A; 3-positioning the support B; 4-positioning blocks; 5-positioning pins; 6-a shoulder nut; 7-a check pin; 8-a compression assembly; 801-screw; 802-cushion block; 803-briquetting; 804-knurled nut; 9-hand-held pad; 10-hexagon socket head cap screw; 11-cylindrical pin
Detailed Description
The disclosed examples will be described more fully with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. Indeed, many different examples may be described and should not be construed as limited to the examples set forth herein. Rather, these examples are described so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to make the objects, advantages and functions of the present invention more clearly understood, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, the boring and inspection clamp for the airplane steering engine installation model comprises a platform 1, a positioning support 2, a positioning support 3, a positioning block 4, a positioning pin 5, an inspection pin 7, a pressing assembly 8 and a handheld gasket 9, wherein the positioning support 2 and the positioning support 3 are fixedly connected above the platform 1, the positioning support 1 and the positioning support 2 are respectively provided with the positioning pin 5 and the inspection pin 7, the positioning support 1 is provided with the handheld gasket 9 (the handheld gasket 9 has three positions, only one position is shown in the figure, the other two positions are arranged on two sides of the positioning support 1, the positions are not fixed and can be flexibly used), the positioning block 4 is respectively fixedly connected beside the positioning support 1 and the positioning support 2, and the pressing assembly 8 is arranged above the platform.
The platform 1 is formed by welding a flat plate 101, a channel steel 102 and a bottom plate 103. The laser tracker and the three-coordinate alignment of 6 positioning holes in the positioning support 2 and the positioning support 3 are used for adjusting the coaxiality, the coaxiality tolerance is guaranteed to be within 0.005, and the laser tracker and the three-coordinate alignment are fixed on the platform through the hexagon socket head cap screw 10 and the cylindrical pin 11.
The contact surface of the positioning support 3 and the model is used as a positioning reference surface. And round holes at two sides of the positioning support 3 are used as a reference for turning over the model. The left and right positioning blocks 4 are fixed on the platform through the hexagon socket head cap screw 10 and the cylindrical pin 11 after ensuring the same height, and are used as positioning reference surfaces of the bottom surface of the model.
The positioning pins 5 are respectively fixed on the positioning support 1 and the positioning support 2 through the shoulder nuts 6, the coaxiality tolerance of the left positioning pin 5 and the right positioning pin 5 is within 0.005, and the positioning pins are used for positioning the reference surface of the front side of the model. The pressing component 8 is formed by combining a screw 801, a cushion block 802, a pressing block 803 and a knurled nut 804, wherein the screw 801 is screwed into a screw hole in the flat plate 101 and is used together with the cushion block 802, the pressing block 803 and the knurled nut 804 to play a role in tensioning.
The working principle of the utility model is as follows: firstly, before the fixture is used for carrying out finish machining on a steering engine installation model, the sizes of the model in the three directions of length, width and height need to be finished in place and are ensured to be mutually vertical, and the fixture is used in cooperation with the fixture as a positioning reference surface. Subsequently place the model in on the plane of locating piece 4, paste the locating surface that leans on locating support 3, paste again and lean on locating pin 5 on locating support 2 and the locating support 3 to this 3 location benchmark are fixed a position the alignment to the model, utilize handheld gasket 9 to insert in the gap of model and locating support 2, play the effect of crowded tight location (also can regard as the inspection gasket to use during later stage is examined surely, whether the inspection model length size is qualified). And the pressing assembly 8 is used for fixing the model, so that the model is ensured not to move in the machining process.
Secondly, the fixture is aligned and fixed on a machine tool before machining. The threaded holes to be processed on the two sides of the model are finely processed by respectively aligning three positioning holes on the positioning support 2 and the positioning support 3, the aperture of the positioning holes on the positioning support 2 and the positioning support 3 is larger than the aperture of the threaded holes to be processed on the model, after the threaded bottom hole is finely processed, a specially-made drill bushing is recycled and put into the positioning holes on the positioning support 2 and the positioning support 3, the threaded bottom hole is tapped by the screw tap through the drill bushing hole (the drill bushing hole and the outer diameter of the screw tap are matched), the screw tap can be guided, the deviation of the thread axis is avoided during tapping, and the coaxiality of the threaded holes on the two sides of the model can be well guaranteed. The round holes on the two sides of the positioning support 3 play a role in turnover alignment, and the coaxiality requirement of the two holes can be well guaranteed when 8 unthreaded hole positioning holes in the longitudinal direction of the machining model (vertical to the axis direction of a threaded hole of the model) are machined.
Finally, in the process of the regular inspection of the model (the reason of the regular inspection is that the model is made of aluminum alloy materials, and the threaded hole is easy to wear in the use process), because the coaxiality of the threaded hole of the model and the wear condition of the thread teeth cannot be detected by three coordinates, the threaded hole of the model can be inspected by the inspection pin 7 in the clamp, and the specific method comprises the following steps: 1) the head of the inspection pin 7 is a thread, the polished rod part is coaxial with the thread part, the rod part of the inspection pin 7 is inserted into the positioning holes of the positioning support 2 and the positioning support 3, and the head part is screwed into the threaded hole of the model. If the threaded part of the inspection pin 7 can be smoothly screwed into the threaded hole of the model, the threaded hole of the model is qualified in size, otherwise, the threaded hole of the model is unqualified. Therefore, the utility model has the following effects: 1) the machining precision of the threaded hole of the model is effectively improved; 2) the inspection device solves the inspection problem of the coaxiality of the threaded hole, and integrates the boring function and the inspection function.
Different examples of the systems, devices, and methods disclosed herein include various components, features, and functions. It should be understood that the various examples of the systems, devices, and methods disclosed herein may include any of the components, features, and functions of any of the other examples of the systems, devices, and methods disclosed herein in any combination or sub-combination, and all such possibilities are intended to fall within the scope of the present invention.
The description of the different advantageous arrangements has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the examples in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Additionally, the different advantageous examples may describe different advantages as compared to other advantageous examples. The example or examples selected are chosen and described in order to best explain the principles of the examples, the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various examples with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The utility model provides an aircraft steering wheel installation model's bore hole and inspection jig which characterized in that: the clamp is characterized in that a pair of positioning and clamping components are symmetrically arranged on a platform (1), the main body of each positioning and clamping component is a positioning support, the inner surface of each positioning support is used for positioning a vertical plane, each positioning support is provided with a pair of positioning pin holes and a positioning hole for positioning a boring hole, the bottom of the inner side of each positioning support is provided with a positioning block (4) for positioning a horizontal plane, and the side surface of each positioning block (4) is provided with an adjustable pressing component (8); the boring and inspection clamp further comprises a positioning pin (5) and an inspection pin (7), and the steering engine installation model is positioned through the positioning pin (5) and the positioning pin hole; the inspection pin (7) has a standard thread at its end, and the threaded hole of the installation model after the completion of the thread machining or the installation model after use is inspected by the inspection pin (7).
2. The boring and inspection jig of claim 1, wherein: the positioning support is provided with a positioning plate in the vertical direction and a mounting seat in the horizontal direction, the mounting seat is positioned through a cylindrical pin (11), and the mounting seat is fixed on the platform (1) through an inner hexagonal bolt (10).
3. The boring and inspection jig of claim 1, wherein: the platform (1) is formed by welding a flat plate (101) at the upper part, a channel steel (102) at the middle part and a bottom plate (103) at the bottom part.
4. The boring and inspection jig of claim 1, wherein: the pair of positioning supports comprises a positioning support A (2) and a positioning support B (3), and the opposite surfaces of the positioning support A and the positioning support B are parallel.
5. The boring and inspection jig of claim 1, wherein: the positioning pin (5) is fixed on the positioning support through a nut (6) with a shoulder.
6. The boring and inspection jig of claim 1, wherein: the pressing assembly (8) comprises a screw (801), a cushion block (802), a pressing block (803) and a knurled nut (804), wherein one end of the pressing block (803) is pressed at the upper end of the cushion block (802), the other end of the pressing block is a pressing head, a waist-shaped groove is formed in the middle of the pressing block (803), one end of the screw (801) is fixed on the platform (1), and the other end of the screw passes through the waist-shaped groove and then is connected with the knurled nut (804).
7. The boring and inspection jig of claim 1, wherein: the boring and inspection fixture further comprises a handheld gasket (9) for detecting a gap between the mounting model and the positioning support after positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121316093.0U CN215967494U (en) | 2021-06-11 | 2021-06-11 | Boring and inspection clamp for airplane steering engine installation model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121316093.0U CN215967494U (en) | 2021-06-11 | 2021-06-11 | Boring and inspection clamp for airplane steering engine installation model |
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| Publication Number | Publication Date |
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| CN215967494U true CN215967494U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121316093.0U Active CN215967494U (en) | 2021-06-11 | 2021-06-11 | Boring and inspection clamp for airplane steering engine installation model |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114872923A (en) * | 2022-06-01 | 2022-08-09 | 沈阳飞机工业（集团）有限公司 | Valve cooperation angle erector |
| CN115351315A (en) * | 2022-09-09 | 2022-11-18 | 内蒙古北方重型汽车股份有限公司 | Large-scale long-arm workpiece balance clamping mechanism and using method thereof |
| CN115555995A (en) * | 2022-09-26 | 2023-01-03 | 沈阳飞机工业（集团）有限公司 | Integrated grinding clamp for inner and outer surfaces of notch of support arm and using method of integrated grinding clamp |
-
2021
- 2021-06-11 CN CN202121316093.0U patent/CN215967494U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114872923A (en) * | 2022-06-01 | 2022-08-09 | 沈阳飞机工业（集团）有限公司 | Valve cooperation angle erector |
| CN114872923B (en) * | 2022-06-01 | 2024-07-23 | 沈阳飞机工业（集团）有限公司 | Valve cooperation angle installer |
| CN115351315A (en) * | 2022-09-09 | 2022-11-18 | 内蒙古北方重型汽车股份有限公司 | Large-scale long-arm workpiece balance clamping mechanism and using method thereof |
| CN115555995A (en) * | 2022-09-26 | 2023-01-03 | 沈阳飞机工业（集团）有限公司 | Integrated grinding clamp for inner and outer surfaces of notch of support arm and using method of integrated grinding clamp |
| CN115555995B (en) * | 2022-09-26 | 2024-03-08 | 沈阳飞机工业（集团）有限公司 | Integrated grinding fixture for inner and outer surfaces of support arm notch and application method thereof |
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