CN118123739A

CN118123739A - A long purlin frock for aircraft spare part processing

Info

Publication number: CN118123739A
Application number: CN202410546968.8A
Authority: CN
Inventors: 王永利; 贾虎涛
Original assignee: Xi'an Zeda Aviation Manufacturing Co ltd
Current assignee: Xi'an Zeda Aviation Manufacturing Co ltd
Priority date: 2024-05-06
Filing date: 2024-05-06
Publication date: 2024-06-04
Anticipated expiration: 2044-05-06
Also published as: CN118123739B

Abstract

The invention discloses a stringer fixture for processing aircraft parts, which belongs to the technical field of stringer fixture structures, and is characterized in that three groups of clamping parts are arranged to be respectively clamped at two ends and the middle of a stringer so as to provide sufficient support and fixation and prevent the stringer from moving along the extending direction of the stringer; when the surface of the stringer to be clamped needs to be locally processed, the double-head electric cylinder at the position is loosened, the double-head electric cylinder drives the two chucks to open up and down, the side wheels are still supported at the side edges of the stringer, the positions are exposed through movement of the sliding seat, the machining is convenient, the device can expose the position needing to be locally machined by arranging three or more clamping parts under the condition of ensuring support and fixation, and when the position is released, the stringer can still be fixed by the clamping parts more than two, and the positioning precision of the device is determined by the clamping heads more than two at the moment, so that the precision is higher, and the flexibility is strong.

Description

A long purlin frock for aircraft spare part processing

Technical Field

The invention belongs to the technical field of stringer clamp structures, and particularly relates to a stringer tool for processing aircraft parts.

Background

The long truss of the aircraft is an important component part of the framework of the aircraft body, is used for fixing and carrying the components such as wings, tail wings and the like, is long in length, has a T, J or H-shaped section and has a strong carrying function.

In the processing of aircraft stringers, clamping of the stringers is required to ensure that the stringers are fixed in position, after the stringers are fixed, the existing stringer fixing tools are used for shielding the surfaces of the stringers, and when local surface processing is required for the surfaces of the stringers, the stringers need to be moved integrally, so that position changes of the stringers can be caused, and positioning accuracy of the stringers can be reduced.

Disclosure of Invention

Accordingly, the present invention is directed to a stringer tooling for use in machining aircraft components that allows for the relief machining of any surface of a stringer while ensuring high precision clamping and a fixed stringer position.

In order to achieve the above purpose, the present invention provides the following technical solutions:

The invention comprises two groups of linear rails and more than three groups of clamping parts, wherein each group of clamping parts comprises two clamping heads, the two clamping heads are respectively arranged on the two groups of linear rails in a sliding way, each clamping head comprises a sliding seat arranged on the linear rail in a sliding way, a sliding frame is arranged on each sliding seat in a transverse moving way, a side wheel for propping against the side edge of the stringer is rotatably arranged on each sliding frame, a double-head electric cylinder is further arranged on each sliding frame, two ends of each double-head electric cylinder are respectively connected with an extension rod, and the end parts of each extension rod are provided with pressure heads pressed on the upper end face and the lower end face of the stringer.

Further, the sliding frame is provided with a movable foot rest in a downward extending mode at two sides, a sliding groove for the movable foot rest to slide is formed in the sliding seat, a limit stud is connected to the side face of the sliding seat in an inward threaded mode, and the limit stud penetrates into the sliding groove and abuts against the side face of the movable foot rest.

Further, a screw shaft is fixedly connected to the side face of the sliding frame, an adjusting box is arranged on the sliding seat, a motor and a motor-driven rotating gear are arranged in the adjusting box, a tooth cylinder is rotatably arranged at the top end of the adjusting box, the gear is meshed with the tooth cylinder, rotating rings are arranged at two ends of the tooth cylinder, annular grooves for supporting and rotating the rotating rings are inwards formed in the top side of the adjusting box, and the inner side of the tooth cylinder is in threaded connection with the screw shaft.

Further, the end of the screw shaft is provided with a baffle disc, the outer side of the slide seat positioned at the middle position of the same track is provided with an extension plate in an extending mode, a long baffle plate is transversely arranged on the extension plate in a sliding mode, and when a plurality of slide seats are arranged in parallel, the long baffle plate is simultaneously blocked on the inner sides of all baffle discs on the same side.

Further, the top of the sliding seat is further rotatably provided with a rotating shaft, the top end of the rotating shaft is provided with a pre-supporting beam, the height of the pre-supporting beam is positioned between the middle parts of the heights of the two opened pressure heads and is downward, and the rotating range of the pre-supporting beam is positioned between the two pressure heads and the pressure heads far away from the two pressure heads.

Further, each group of linear rails comprises two T-shaped rails which are supported at the front edge and the rear edge of the bottom surface of the sliding seat.

Further, the sliding frame is provided with a guide post in an up-and-down extending mode, and the middle of the extension rod is vertically arranged on the guide post in a sliding mode.

The invention has the beneficial effects that:

According to the invention, three groups of clamping parts are arranged and respectively clamped at the two ends and the middle part of the stringer so as to provide enough support and fixation, in the clamping parts, the two clamping heads are respectively clamped at the two sides, the two clamping heads are blocked at the two edges of the plane strip of the stringer, and the two pressing heads are used for pressing the upper end face and the lower end face of the plane strip of the stringer, so that the clamping mode can limit the upper, lower, left and right directions of the stringer, lock the stringer through the pressing heads and avoid the movement of the stringer along the extending direction of the stringer; when the surface of the stringer to be clamped needs to be locally processed, the double-head electric cylinder at the position is loosened, the double-head electric cylinder drives the two chucks to open up and down, the side wheels are still supported at the side edges of the stringer, the positions are exposed through movement of the sliding seat, the machining is convenient, the device can expose the position needing to be locally machined by arranging three or more clamping parts under the condition of ensuring support and fixation, the stringer still can obtain more than two clamping parts to be fixed during the yielding, and when the stringer is yielding, the side wheels roll along the edges of the stringer while keeping limiting, the positioning accuracy of the device is determined by more than two clamping heads, so that the positioning accuracy of the device is higher, and the flexibility is strong.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:

FIG. 1 is a schematic view of an overall stringer tooling according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a cross-sectional view at B of FIG. 2;

FIG. 4 is a cross-sectional view of an embodiment of the invention at the adjustment box;

FIG. 5 is a schematic view showing the action of a long baffle according to an embodiment of the present invention;

The figures are marked as follows: 1. a linear rail; 11. a T-shaped rail; 2. a clamping part; 21. a clamping head; 211. a slide; 2111. an extension plate; 2112. a long baffle; 2113. a rotating shaft; 2114. pre-supporting the beam; 212. a carriage; 2121. a movable foot rest; 2122. a guide post; 213. a side wheel; 214. a double-ended electric cylinder; 215. an extension rod; 216. a pressure head; 217. a limit stud; 218. a screw shaft; 2181. a baffle disc; 2191. an adjusting box; 21911. a ring groove; 2192. a motor; 2193. a gear; 2194. a tooth cylinder; 21941. a swivel; 3. stringers.

Detailed Description

As shown in fig. 1-5, the invention discloses a stringer 3 tooling for processing aircraft parts, which comprises two groups of linear rails 1 and three groups of clamping parts 2, wherein each group of linear rails 1 consists of two parallel T-shaped rails 11, and the head ends and the tail ends of the total four T-shaped rails 11 are blocked by transverse rods; each group of clamping parts 2 comprises two clamping heads 21, two clamping heads 21 are respectively arranged on two groups of linear rails 1 in a sliding mode, the structure is used for clamping and fixing the long trusses 3, the two clamping heads 21 are respectively clamped on two sides of the long trusses 3, the long trusses 3 are suspended and fixed, referring to fig. 2, the clamping heads 21 comprise sliding seats 211 which are arranged on the linear rails 1 in a sliding mode, the T-shaped rails 11 are supported at front and rear edge positions of the bottom surfaces of the sliding seats 211, the sliding seats 211 are in a square seat structure, mechanical moving structures such as rollers are arranged in the sliding seats 211, the sliding seats 211 freely move on the T-shaped rails 11 in an electric control mode, sliding frames 212 are transversely arranged in a moving mode, side wheels 213 are rotatably arranged on the sliding frames 212, the side wheels 213 partially leak out from the sliding frames 212 and are used for being abutted against the side edges of the long trusses 3, double-headed electric cylinders 214 are further arranged on the sliding frames 212, output ends of the electric cylinders 214 extend from the sliding frames 212 up and down, the upper ends of the sliding frames 212 are respectively connected with two ends of the two guide rods 215, and the two ends of the two guide rods 215 are respectively arranged on the two ends of the sliding frames 215, and the two ends of the guide rods 215 are arranged on the two sides of the upper ends of the sliding rods 215, and the two ends of the upper ends of the guide rods 215, and the lower ends of the sliding rods are correspondingly arranged.

The stringer 3 tool with the structure is characterized in that three groups of clamping parts 2 are arranged and respectively clamped at the two ends and the middle part of the stringer 3 to provide enough support and fixation, in the clamping parts 2, the two clamping heads 21 are respectively clamped at the two sides, the two edges of a plane strip of the stringer 3 are blocked by side wheels 213, the upper end face and the lower end face of the plane strip of the stringer 3 are pressed by two pressing heads 216, the clamping mode can limit the vertical, horizontal and horizontal directions of the stringer 3, and the stringer 3 is locked by the pressing heads 216 to avoid the movement of the stringer 3 along the extending direction of the stringer 3; when the surface of the stringer 3 to be clamped needs to be locally processed, the double-head electric cylinder 214 at the position is loosened, the double-head electric cylinder 214 drives the two chucks to open up and down, the side wheels 213 are still supported at the side edges of the stringer 3, the position is exposed through the movement of the sliding seat 211, the processing is convenient, the device can be used for exposing the position needing to be locally processed under the condition of ensuring support and fixation by arranging three or more clamping parts 2, more than two clamping parts 2 can still be obtained for fixing the stringer 3 during the yielding, and when the stringer 3 is yielding, the side wheels 213 roll along the edges of the stringer 3 while keeping limiting, and the positioning precision of the device is determined by more than two clamping heads 21, so that the positioning precision is higher, and the positioning precision is high.

In a further scheme, as shown in fig. 2 and 3, moving foot frames 2121 extend obliquely downwards from two sides of the sliding frame 212, a sliding groove for the moving foot frames 2121 to slide is formed in the sliding seat 211, a limit stud 217 is connected to the side surface of the sliding seat 211 in an inward threaded manner, and the limit stud 217 penetrates into the sliding groove and abuts against the side surface of the moving foot frames 2121.

This structure is used for carrying out the fender of extreme position to the horizontal clamping position of carriage 212 before the centre gripping, through auxiliary assembly fixed stringer 3, carry out the centre gripping of every clamping part 2, after the centre gripping is accomplished, rotatory spacing double-screw bolt 217 makes spacing double-screw bolt 217 support in the side of moving foot rest 2121, when carrying out real-time centre gripping, can ensure in every clamping part 2, the extreme displacement distance of carriage 212, avoid the excessive centre gripping to stringer 3, destroy stringer 3 surface, also ensure that the location position of all clamping parts 2 is fixed, guarantee stringer 3 and straight line track 1 are parallel after the centre gripping, this structure has further promoted the location precision of this frock.

In a further scheme, as shown in fig. 2 and 4, a screw shaft 218 is fixedly connected to the side of the sliding frame 212, an adjusting box 2191 is disposed on the sliding seat 211, a motor 2192 and a gear 2193 driven by the motor 2192 to rotate are disposed in the adjusting box 2191, a gear cylinder 2194 is rotatably disposed at the top end of the adjusting box 2191, the gear 2193 is meshed with the gear cylinder 2194, rotating rings 21941 are disposed at two ends of the gear cylinder 2194, a ring groove 21911 for supporting and rotating the rotating ring 21941 is disposed on the top side of the adjusting box 2191, and the inner side of the gear cylinder 2194 is in threaded connection with the screw shaft 218.

In this structure, the horizontal displacement of the carriage 212 is driven by the motor 2192, the motor 2192 drives the gear 2193 to rotate, the gear 2193 engages with the gear cylinder 2194 to rotate, the gear cylinder 2194 is fixed in position by the swivel 21941 and rotates to drive the screw shaft 218 in threaded connection with the gear cylinder 2194 to reciprocate horizontally, in this structure, the swivel 21941 is arranged to ensure that the gear cylinder 2194 rotates, and simultaneously, the screw shaft 218 is in coaxial threaded connection with the gear cylinder 2194, so that the gear 2193 and the gear cylinder 2194 can be meshed at any time, and the transmissibility of the transmission structure is ensured. The structure has self-locking property, namely, the screw shaft 218 is driven by the motor 2192 to move, the screw shaft 218 cannot reversely influence the rotation of the tooth cylinder 2194, the structure can smoothly support the side wheel 213 on the side edge of the stringer 3, and meanwhile, the position of the side wheel 213 is fixed, and the position of the side wheel 213 is ensured to be fixed in the subsequent clamping and yielding processes of the clamping head 21.

In a further aspect, as shown in fig. 2 and fig. 5, a baffle plate 2181 is disposed at the end of the screw shaft 218, an extension plate 2111 is disposed on the outer side of the sliding seat 211 in the middle position in an extending manner, a long baffle plate 2112 is disposed on the extension plate 2111 in a sliding manner, and when a plurality of sliding seats 211 are juxtaposed, the long baffle plate 2112 is simultaneously blocked on the inner sides of all baffle plates 2181 on the same side.

By arranging the long baffle 2112, the structure can ensure that after the positions of the middle clamping heads 21 and the side wheels 213 are determined, a plurality of clamping heads 21 are contacted, the long baffle 2112 is blocked at the inner side of the baffle plate 2181, and when the positions of the side wheels 213 of other clamping heads 21 are determined at the moment, the screw shafts 218 are directly driven to move, so that the baffle plate 2181 is blocked at the outer side of the long baffle 2112, the positions of the screw shafts 218 of all the clamping heads 21 are unified, the operation mode is simple, the positioning is accurate, and the position of the stringer 3 is determined after the clamping of the stringer 3, namely, the stringer 3 is parallel to the linear track 1.

In a further aspect, as shown in fig. 1 and 2, a rotating shaft 2113 is further rotatably disposed at the top of the sliding seat 211, a pre-supporting beam 2114 is disposed at the top end of the rotating shaft 2113, the height of the pre-supporting beam 2114 is located between the middle of the height of the two opened pressure heads 216, and the rotation range of the pre-supporting beam 2114 is located between the two pressure heads 216 and away from the two pressure heads 216.

This structure is used for carrying out preliminary placement to the long truss 3 that needs to be held, makes the long rectangular support beam 2114 in advance of the plane that needs to be held of long truss 3, makes the vertical rectangular of long truss 3 be located between two support beams 2114 in advance, and the accessible hoist and mount of placing mode removes simply and need not accurate location, after placing, through synchronous centre gripping of all clamping parts 2, removes side wheel 213, shrink pressure head 216, fixes long truss 3, through setting up this structure, reduces the centre gripping degree of difficulty of long truss 3, promotes clamping efficiency.

Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. A stringer (3) frock for aircraft parts processing, its characterized in that: including two sets of straight line track (1) and clamping part (2) more than three sets of, every clamping part (2) of group includes two clamping heads (21), two clamping heads (21) are smooth respectively to be established on two sets of straight line track (1), clamping heads (21) are including sliding slide (211) of locating on straight line track (1), lateral shifting is provided with carriage (212) on slide (211), it is equipped with side wheel (213) that are used for supporting in stringer (3) side edge to rotate on carriage (212), still be equipped with double-end electric jar (214) on carriage (212), an extension rod (215) are connected respectively at double-end electric jar (214) both ends, extension rod (215) tip is equipped with pressure head (216) of pressing up and down terminal surface at stringer (3) side.

2. Stringer (3) tooling for the machining of aircraft parts according to claim 1, characterized in that: the sliding support is characterized in that moving foot frames (2121) extend downwards from two sides of the sliding support (212), sliding grooves for the moving foot frames (2121) to slide are formed in the sliding base (211), limiting studs (217) are connected to the side faces of the sliding base (211) in an inwards threaded mode, and the limiting studs (217) penetrate through the sliding grooves and abut against the side faces of the moving foot frames (2121).

3. Stringer (3) tooling for the machining of aircraft parts according to claim 1, characterized in that: the utility model discloses a spiral pulley for the refrigerator, including carriage (212), slide (211), a screw shaft (218) is fixedly connected with to side, be equipped with adjustment case (2191) on slide (211), be equipped with motor (2192) and motor (2192) drive pivoted gear (2193) in adjustment case (2191), adjustment case (2191) top is rotated and is equipped with tooth section of thick bamboo (2194), gear (2193) with tooth section of thick bamboo (2194) meshing, tooth section of thick bamboo (2194) both ends are equipped with swivel (21941), be equipped with in adjustment case (2191) top side and supply swivel (21941) support and pivoted annular (21911), tooth section of thick bamboo (2194) inboard with screw shaft (218) threaded connection.

4. Stringer (3) tooling for the machining of aircraft parts according to claim 3, characterized in that: the end of the screw shaft (218) is provided with a baffle disc (2181), the outer side of the sliding seat (211) positioned at the middle position of the same track is provided with an extension plate (2111) in an extending mode, a long baffle plate (2112) is transversely arranged on the extension plate (2111) in a sliding mode, and when a plurality of sliding seats (211) are arranged in parallel, the long baffle plate (2112) is simultaneously blocked at the inner sides of all baffle discs (2181) at the same side.

5. Stringer (3) tooling for the machining of aircraft parts according to claim 1, characterized in that: the top of the sliding seat (211) is further rotatably provided with a rotating shaft (2113), the top end of the rotating shaft (2113) is provided with a pre-supporting beam (2114), the height of the pre-supporting beam (2114) is located between the middle parts of the heights of the two open pressure heads (216) and is declined, and the rotating range of the pre-supporting beam (2114) is located between the two pressure heads (216) and the two pressure heads (216).

6. Stringer (3) tooling for the machining of aircraft parts according to claim 1, characterized in that: each group of linear rails (1) comprises two T-shaped rails (11), and the T-shaped rails (11) are supported at the front edge and the rear edge of the bottom surface of the sliding seat (211).

7. Stringer (3) tooling for the machining of aircraft parts according to claim 1, characterized in that: the sliding frame (212) is provided with a guide post (2122) in an up-down extending mode, and the middle portion of the extension rod (215) is vertically arranged on the guide post (2122) in a sliding mode.