A kind of fairing hood length processing clamping device and method

Abstract

The invention discloses a rectifier length processing clamping device and method, comprising a mandrel, a positioning block, a support ring, a jacket and a tail frame, wherein the tail frame is composed of a connecting plate, a first and a second circular ring seats correspondingly coaxially welded at both ends of the connecting plate, and a mounting shaft coaxially welded on the second circular ring, wherein the free end of the mounting shaft and one end of the mandrel are both Morse cone shaft heads, the positioning block and the support ring are coaxially sleeved on the mandrel, and the distance between the surfaces facing each other is consistent with the processing length required for the rectifier, the rectifier is tightly sleeved on the positioning block and the support ring, the positioning block is located at the other end of the mandrel, the jacket is coaxially rotatably installed in the first circular ring seat, and can be coaxially sleeved outside the positioning block and move, and when the end face of the jacket adjacent to the second circular ring and the end face of the positioning block away from the support ring are located in the same plane, a clamping cavity adapted to the wall thickness of the rectifier is formed between the two. The invention solves the technical problem of how to clamp the rectifier conveniently and without damage.

Description

Technical Field

[0001] The invention relates to the technical field of clamping devices, and in particular to a clamping device and method for processing the length of a fairing. Background Art

[0002] The fairing parts are mainly used for drag reduction at the head of the aircraft. They are semi-shuttle streamlined bodies and are spun from aluminum tubes. Since spinning cannot accurately control the length, a fairing that is longer than the required length is usually spun first, and then a clamping device is used to clamp it on a lathe to remove the excess parts of the front and rear sections to make it the required length. At present, a multi-claw self-centering chuck is usually used to clamp it. Obviously, this not only makes clamping and positioning difficult and time-consuming, but also has low accuracy, especially the clamping and positioning of the small end with an arc surface. In addition, since the inside of the fairing is a cavity and is made of aluminum, it is easy for the part where the fairing contacts the chuck to be deformed or even damaged due to excessive force, resulting in low production efficiency, low processing accuracy and poor quality. Summary of the invention

[0003] In view of the deficiencies in the background technology, the present invention provides a fairing length processing clamping device and method to solve the problem of how to clamp the fairing conveniently and without damage.

[0004] In order to solve the above technical problems, the present invention provides a fairing wind shield length processing clamping device, comprising a core shaft, a positioning block, a support ring, a jacket and a tail frame, wherein the tail frame is composed of a connecting plate, a first circular ring seat and a second circular ring seat coaxially welded vertically downward at both ends of the connecting plate, and a mounting shaft coaxially welded on the side of the second circular ring seat away from the first circular ring seat, the free end of the mounting shaft and one end of the core shaft are both Morse cone shaft heads, the positioning block and the support ring are coaxially sleeved on the core shaft, and the distance between the faces facing each other is the same as the fairing wind shield length. The required processing length of the wind hood is consistent, and the fairing wind hood sleeve is placed on the positioning block and the supporting ring. When the fairing wind hood sleeve is put in place, the outer peripheral walls of the positioning block and the supporting ring are against the inner walls thereof, and the positioning block is located on the other end of the core shaft. The jacket is coaxially rotatably installed in the first circular ring seat, and it can be coaxially sleeved outside the positioning block and moved. When the end face of the jacket adjacent to the second circular ring and the end face of the positioning block away from the supporting ring are located in the same plane, a clamping cavity adapted to the wall thickness of the fairing wind is formed between the two.

[0005] In one embodiment of the present invention, the support ring is provided with a set screw for fastening the support ring to the core shaft.

[0006] In one embodiment of the present invention, the positioning block is provided with positioning nails and pins for fastening the positioning block to the core shaft in the axial direction and radial direction respectively.

[0007] In one embodiment of the present invention, the outer peripheral walls of the positioning block and the support ring are both covered with buffer pads.

[0008] The present invention also provides a method for processing and clamping the length of a fairing, which is performed in the above-mentioned fairing length processing and clamping device, and comprises the following steps:

[0009] Step S1, installing the Morse taper shaft heads of the mandrel and the mounting shaft on the lathe headstock and the lathe tailstock respectively, with the axes of the two coinciding;

[0010] Step S2, placing the fairing cover to be processed on the positioning block and the support ring, so that the outer peripheral walls of the positioning block and the support ring are against the inner wall of the fairing cover;

[0011] Step S3, controlling the tailstock of the lathe to move along the axial direction of the mounting shaft toward the positioning block, until the end surface of the jacket adjacent to the second circular ring and the end surface of the positioning block away from the support ring are located in the same plane to clamp the fairing;

[0012] Step S4, after the lathe controls the turning tool to move to the end surface of the fairing hood located at the jacket adjacent to the second circular ring, the part of the fairing hood from this location to the end away from the support ring is cut off, and then the turning tool is controlled to move along the axial direction of the mandrel toward the support ring by the required processing length, and the part of the fairing hood from this location to the end away from the positioning block is cut off;

[0013] Step S5, controlling the tailstock of the lathe to move along the axial direction of the mounting shaft in a direction away from the positioning block until the jacket is separated from the fairing cover, and then removing the fairing cover.

[0014] The above-mentioned technical scheme of the present invention has the following advantages compared with the prior art: the present invention uses a support ring, a positioning block and a sleeve that can be coaxially sleeved outside the positioning block and moved, and the distance between the support ring and the positioning faces facing each other is set to be consistent with the required processing length of the fairing hood, and when the sleeve moves to the point where its end face adjacent to the second circular ring is in the same plane as the end face of the positioning block away from the support ring, a clamping cavity that is adapted to the wall thickness of the fairing air is formed between the two, so that when the fairing hood needs to be clamped, it is only necessary to first place the fairing hood sleeve on the support ring and the positioning block and move it axially, move it until the outer peripheral walls of the positioning block and the support ring abut against their inner walls, and then move the sleeve until the end face of the sleeve adjacent to the second circular ring is in the same plane as the end face of the positioning block away from the support ring, thereby realizing convenient and damage-free clamping of the fairing hood, greatly improving production efficiency, and ensuring processing accuracy and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the present invention in use state;

[0018] Figure 3 A schematic diagram of the structure of the tailstock in the present invention;

[0019] Explanation of the reference numerals in the drawings in the specification: 1. mandrel, 2. positioning block, 3. support ring, 4. jacket, 5. tailstock, 51. connecting plate, 52. first circular ring seat, 53. second circular ring seat, 54. mounting shaft, 6. fairing, 7. set screw, 8. positioning pin, 9. pin. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0021] The above and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only the directions of the reference drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention. In addition, in all embodiments, the same reference numerals represent the same elements.

[0022] Reference Figure 1 , Figure 2 and Figure 3As shown, a fairing wind cover length processing clamping device is characterized in that it includes a core shaft 1, a positioning block 2, a support ring 3, a jacket 4 and a tail frame 5, wherein the tail frame 5 is composed of a connecting plate 51, a first circular ring seat 52 and a second circular ring seat 53 coaxially welded vertically downward at both ends of the connecting plate 51, and a mounting shaft 54 ​​coaxially welded on the side of the second circular ring seat 53 away from the first circular ring seat 52, the free end of the mounting shaft 54 ​​and one end of the core shaft 1 are both Morse cone shaft heads, the positioning block 2 and the support ring 3 are coaxially sleeved on the core shaft 1, and the distance between the surfaces facing each other is consistent with the required processing length of the fairing wind cover 6, the fairing wind cover 6 is sleeved on the positioning block 2 and the support ring 3, and when the fairing wind cover 6 is put in place, the outer peripheral walls of the positioning block 2 and the support ring 3 are both against the inner wall thereof, which not only makes the clamping and positioning convenient and accurate, but also greatly improves the anti-deformation ability of the fairing wind cover 6 against the support ring 3 and the positioning block 2. The positioning block 2 is located on the other end of the core shaft 1, and the jacket 4 is coaxially rotatably installed in the first circular ring seat 52, and it can be coaxially sleeved outside the positioning block 2 and moved. When the end face of the jacket 4 adjacent to the second circular ring and the end face of the positioning block 2 away from the support ring 3 are located in the same plane, a clamping cavity adapted to the wall thickness of the rectified wind is formed between the two. Through the arrangement of the support ring 3, the positioning block 2 and the jacket 4 that can be coaxially sleeved outside the positioning block 2 and moved, when it is necessary to clamp the rectified wind hood 6, just put the rectified wind hood 6 on the support ring 3 and the positioning block 2 and move it axially until the outer peripheral wall of the positioning block 2 and the support ring 3 is against the inner wall thereof, and then move the jacket 4 until the end face of the jacket 4 adjacent to the second circular ring and the end face of the positioning block 2 away from the support ring 3 are located in the same plane, thereby achieving the technical effect of conveniently and non-destructively clamping the rectified wind hood 6.

[0023] The support ring 3 is provided with a fixing screw 7 for fastening it to the core shaft 1, and the positioning block 2 is provided with a positioning nail 8 and a pin 9 for fastening it to the core shaft 1 in the axial and radial directions respectively. This arrangement makes the connection between the support ring 3 and the positioning block 2 and the core shaft 1 more stable, thereby improving the stability and reliability of the support of the fairing hood 6.

[0024] The outer peripheral walls of the positioning block 2 and the support ring 3 are covered with buffer pads, which not only further enhances the anti-deformation ability of the fairing hood 6 against the support ring 3 and the positioning block 2, but also effectively avoids the problem of damage to the fairing hood 6 caused by excessive abutment force.

[0025] A method for processing and clamping the length of a fairing hood is carried out in the above-mentioned fairing hood length processing and clamping device, comprising the following steps:

[0026] Step S1, the Morse taper shaft heads of the mandrel 1 and the mounting shaft 54 ​​are mounted on the lathe headstock and the lathe tailstock respectively, and the axes of the two coincide with each other;

[0027] Step S2, putting the to-be-processed fairing hood 6 on the positioning block 2 and the support ring 3, so that the outer peripheral walls of the positioning block 2 and the support ring 3 are against the inner wall of the fairing hood 6;

[0028] Step S3, controlling the lathe tailstock to move along the axial direction of the mounting shaft 54 ​​toward the positioning block 2, until the end surface of the jacket 4 adjacent to the second circular ring and the end surface of the positioning block 2 away from the support ring 3 are located in the same plane to clamp the fairing hood 6;

[0029] Step S4, after the lathe controls the turning tool to move to the end surface of the fairing hood 6 located at the jacket 4 adjacent to the second circular ring, the part of the fairing hood 6 from this location to the end away from the support ring 3 is cut off, and then the turning tool is controlled to move along the axial direction of the mandrel 1 toward the support ring 3 by the required processing length, and the part of the fairing hood 6 from this location to the end away from the positioning block 2 is cut off;

[0030] Step S5, control the lathe tailstock to move along the axial direction of the installation shaft 54 ​​in a direction away from the positioning block 2, move until the jacket 4 is separated from the fairing hood 6, and then remove the fairing hood 6. This method achieves the technical effect of clamping the fairing hood 6 conveniently and without damage, is easy to use, and has fast and accurate clamping and positioning, and effectively ensures processing accuracy and quality.

[0031] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A fairing hood length processing clamping device, characterized in that: The invention comprises a core shaft, a positioning block, a support ring, a jacket and a tail frame, wherein the tail frame is composed of a connecting plate, a first circular ring seat and a second circular ring seat which are coaxially welded vertically downward at both ends of the connecting plate, and a mounting shaft which is coaxially welded on the side of the second circular ring seat away from the first circular ring seat, wherein the free end of the mounting shaft and one end of the core shaft are both Morse cone shaft heads, the positioning block and the support ring are coaxially sleeved on the core shaft, and the distance between the surfaces which are away from each other is consistent with the processing length required for the fairing, and the fairing The cover sleeve is placed on the positioning block and the support ring. When the fairing cover sleeve is put in place, the outer peripheral walls of the positioning block and the support ring are both against the inner wall thereof. The positioning block is located on the other end of the core shaft. The jacket is coaxially rotatably installed in the first circular ring seat, and can be coaxially sleeved outside the positioning block and moved. When the end face of the jacket adjacent to the second circular ring and the end face of the positioning block away from the support ring are located in the same plane, a clamping cavity adapted to the wall thickness of the fairing cover is formed between the two. The support ring is provided with a set screw for fastening it to the core shaft; the positioning block is provided with a positioning nail and a pin for fastening it to the core shaft in the axial and radial directions respectively; the outer peripheral walls of the positioning block and the support ring are covered with a buffer pad.

2. A method for processing and clamping the length of a fairing, characterized in that: The process is carried out in the fairing length processing clamping device as claimed in claim 1, comprising the following steps: Step S1, installing the Morse taper shaft heads of the mandrel and the mounting shaft on the lathe headstock and the lathe tailstock respectively, with the axes of the two coinciding; Step S2, placing the fairing cover to be processed on the positioning block and the support ring, so that the outer peripheral walls of the positioning block and the support ring are against the inner wall of the fairing cover; Step S3, controlling the tailstock of the lathe to move along the axial direction of the mounting shaft toward the positioning block, until the end surface of the jacket adjacent to the second circular ring and the end surface of the positioning block away from the support ring are located in the same plane to clamp the fairing; Step S4, after the lathe controls the turning tool to move to the end surface of the fairing hood located at the jacket adjacent to the second circular ring, the part of the fairing hood from this location to the end away from the support ring is cut off, and then the turning tool is controlled to move along the axial direction of the mandrel toward the support ring by the required processing length, and the part of the fairing hood from this location to the end away from the positioning block is cut off; Step S5, controlling the tailstock of the lathe to move along the axial direction of the mounting shaft in a direction away from the positioning block until the jacket is separated from the fairing cover, and then removing the fairing cover.

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