An auxiliary device for forming T-shaped composite stringers for aircraft

Abstract

This invention discloses an auxiliary device for forming T-shaped composite material stringers for aircraft, relating to the field of aircraft manufacturing, particularly the laying and forming process of T-shaped composite material stringers for aircraft outer wings. It assists the forming mold in the left and right closing and demolding of the fixed and moving molds. Its structure includes a servo electric cylinder, a front-end docking mechanism, a mold docking component, a mold mounting base, and an electric cylinder mounting base component. The front-end docking mechanism controls the simultaneous extension and retraction of a pair of hook-shaped components by rotating a handle, thereby locking or separating the mold docking component, ultimately achieving the connection and disengagement of the device with the moving mold. The servo electric cylinder controls the extension and retraction of the front-end docking mechanism and the moving mold. This invention solves the problem of the traditional manual pushing and pulling method of the moving mold, which is labor-intensive and inefficient. Replacing manual operation with semi-automatic operation simplifies operation, reduces worker labor intensity, ensures uniform and stable force on the moving mold, and improves the quality and efficiency of mold closing and demolding.

Description

Technical Field

[0001] This invention relates to the field of aircraft manufacturing. In particular, it relates to the laying and molding process of T-shaped composite material stringers for aircraft outer wings, and to the auxiliary molding die for left and right mold closing and demolding of the fixed and moving molds, and the auxiliary device is versatile. Background Technology

[0002] In recent years, with the development of aircraft manufacturing technology, technologies that replace manual operations with automation and semi-automation have begun to be widely used in composite material parts manufacturing production lines.

[0003] As aircraft sizes continue to increase, the length of the T-shaped composite stringers on the outer wing also grows. Consequently, the molding dies used in the laying and molding process also become larger. This results in the moving molds, which need to be pushed and pulled during mold closing and demolding, becoming increasingly longer and heavier. Traditionally, this pushing and pulling method involves manual labor, which is labor-intensive and inefficient. Summary of the Invention

[0004] To address the aforementioned problems, reduce worker workload, and improve the efficiency and quality of mold closing and demolding, this invention provides an auxiliary device for molding T-shaped composite stringers for aircraft.

[0005] This invention is achieved through the following technical solution: an auxiliary device for forming a T-shaped composite stringer for aircraft, the structure of which consists of a servo electric cylinder, a front-end docking mechanism, a mold docking component, a mold mounting base, and an electric cylinder mounting base component. The servo electric cylinder is mounted on the electric cylinder mounting base component with screws. The front-end docking mechanism is mounted on the servo electric cylinder push rod through the external thread of the electric cylinder connector. The mold docking component is mounted on the moving mold as a whole. The mold mounting base is mounted on the mold tooling as a whole. After the servo electric cylinder, the electric cylinder mounting base component, and the front-end docking mechanism are assembled, the whole is quickly installed with the mold mounting base through two docking pins and quick clamps.

[0006] Furthermore, the aforementioned front-end docking mechanism comprises an electric cylinder connector, a nameplate, a tension spring, a tension spring support, a threaded seat, a handle, a handle mounting base, a cylindrical pin, a central connector, a shaped rotating component, a sliding seat, a hook-shaped component, a pressure block, and a wear-resistant polyurethane washer. The nameplate is screwed onto the electric cylinder connector, the electric cylinder connector is screwed onto the central connector, the sliding seat is also screwed onto the central connector, and the shaped rotating component is installed in the stepped large hole in the middle of the central connector, with one end of the stepped shaft protruding from the back of the central connector. The handle is fixed in the handle mounting hole with a cylindrical pin. The handle is installed on the handle mounting seat through external thread. The stepped shaft at the other end is installed in the blind hole in the middle of the sliding seat. One of the two tension spring supports is installed on the end face of the handle mounting seat, and the other is installed on the end face of the middle connector through a threaded seat. The tension spring is hooked on the two tension spring supports by hooks at both ends. The four pressure blocks are installed on the sliding seat with screws. The two hook-shaped pieces are installed between the two pressure blocks respectively. The four wear-resistant polyurethane washers are installed in the four mounting holes of the sliding seat with an transition fit.

[0007] Furthermore, the irregularly shaped rotating component is a stepped shaft, thick in the middle and thin at both ends, with two symmetrical elongated holes on the large circular end face in the middle. The hook-shaped component has a round boss that mates with the elongated holes of the irregularly shaped rotating component, and the nameplate is engraved with the words "extend" and "retract".

[0008] Furthermore, the mold docking component is provided with an irregular stepped hole that mates with the front docking mechanism, and an installation hole that mates with the moving mold.

[0009] Furthermore, the mold mounting base is provided with mounting holes that mate with two mating pins, mounting holes that mate with two quick clamps, and mounting holes that mate with the mold tooling.

[0010] Furthermore, the electric cylinder mounting base component consists of an electric cylinder mounting base, a connecting pin, a quick clamp, and a square handle. The connecting pin is screwed to the bottom of the electric cylinder mounting base, the quick clamp is screwed to both sides of the electric cylinder mounting base, and the square handle is screwed to the upper part of the electric cylinder mounting base. The electric cylinder mounting base is provided with an annular mounting hole for the servo electric cylinder.

[0011] Before use, the mold docking parts are installed on the moving mold to form a single unit, and the mold mounting base is installed on the mold tooling to form a single unit. After the servo electric cylinder, electric cylinder mounting base, and front docking mechanism are assembled, the whole assembly can be quickly installed or disassembled with the mold mounting base via two docking pins and quick-clamping clamps. The front docking mechanism rotates the irregularly shaped rotating parts by rotating the handle. The irregularly shaped rotating parts drive a pair of hook-shaped parts to extend and retract simultaneously through symmetrical elongated holes on both sides, thereby locking or separating the mold docking parts, ultimately realizing the connection and disengagement of this device with the moving mold. The servo electric cylinder pushes or pulls back the front docking mechanism and the moving mold via a push rod.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] 1) Small size, compact structure, easy to maintain, and can be quickly disassembled.

[0014] 2) It has high working stability, high positioning accuracy, and high load-bearing capacity. Multiple moving molds can be used together according to their length.

[0015] 3) Simple operation reduces the labor intensity of workers and improves the quality and efficiency of mold closing and demolding.

[0016] 4) It makes the moving mold subjected to uniform and stable force, thus extending the life of the moving mold.

[0017] The present invention will be further described in detail below with reference to the accompanying drawings of the embodiments: Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of the auxiliary device;

[0019] Figure 2 This is an exploded view of the front-end interface mechanism;

[0020] Figure 3 This is an exploded view of the electric cylinder mounting bracket component;

[0021] Figure 4 This is a partial schematic diagram of the front-end docking mechanism;

[0022] Figure 5 This is a partial schematic diagram of the retracted state of the front-end docking mechanism;

[0023] Figure 6 This is a partial schematic diagram showing the locking state of the front-end docking mechanism and the mold docking parts;

[0024] Figure 7 This is a schematic diagram of the sliding seat.

[0025] The numbers in the diagram are explained as follows: 1. Servo electric cylinder; 2. Front-end docking mechanism; 201. Electric cylinder connector; 202. Nameplate; 203. Tension spring; 204. Handle mounting base; 205. Handle; 206. Cylindrical pin; 207. Tension spring support; 208. Threaded seat; 209. Middle connector; 210. Irregular rotating part; 211. Sliding seat; 212. Pressure block; 213. Hook-shaped part; 214. Wear-resistant polyurethane washer; 3. Mold docking part; 4. Mold mounting base; 5. Electric cylinder mounting base component; 501. Electric cylinder mounting base; 502. Docking pin; 503. Quick clamp; 504. Square handle. Detailed Implementation

[0026] Reference Appendix Figure 1As shown, an auxiliary device for forming a T-shaped composite stringer for aircraft is disclosed. The mold used for forming the T-shaped composite stringer for aircraft includes a moving mold and a fixed mold. Its structure includes a servo electric cylinder 1, a front-end docking mechanism 2, a mold docking component 3, a mold mounting base 4, and an electric cylinder mounting base component 5. The servo electric cylinder 1 is screwed onto the electric cylinder mounting base component 5. The front-end docking mechanism 2 is threaded onto the push rod of the servo electric cylinder 1 through the external thread of the electric cylinder connector 201. The mold docking component 3 is installed on the moving mold as a whole. The mold mounting base 4 is installed on the mold fixture as a whole. After the servo electric cylinder 1, the electric cylinder mounting base component 5, and the front-end docking mechanism 2 are assembled, they are quickly installed onto the mold mounting base 4 through two docking pins 502 and quick clamps 503.

[0027] like Figure 2 As shown, the front-end docking mechanism 2 consists of an electric cylinder connector 201, a nameplate 202, a tension spring 203, a handle mounting base 204, a handle 205, a cylindrical pin 206, a tension spring support 207, a threaded seat 208, a middle connector 209, a non-circular rotating component 210, and a sliding seat 211 (as shown). Figure 7 (As shown), it consists of a pressure block 212, a hook-shaped part 213, and a wear-resistant polyurethane washer 214. The nameplate 202 is screwed onto the electric cylinder connector 201, which is screwed onto the central connector 209. The sliding seat 211 is also screwed onto the central connector 209. The irregularly shaped rotating part 210 is installed in the stepped large hole in the middle of the central connector 209. The stepped shaft at one end of the irregularly shaped rotating part 210 protrudes from the back of the central connector 209 and is fixed in the hole of the handle mounting seat 204 with a cylindrical pin 206. The handle 205 is threaded onto the handle mounting seat 204. The stepped shaft at the other end of the irregularly shaped rotating part 210 is installed on the sliding seat 204. In the blind hole in the middle of 11, one of the two tension spring supports 207 is mounted on the end face of the handle mounting seat 204, and the other is mounted on the end face of the middle connector 209 through the threaded seat 208. The tension spring 203 is hooked on the two tension spring supports 207 through the hooks at both ends to eliminate transmission clearance and ensure the stability of the extension and retraction of the hook-shaped part 213. The four pressure blocks 212 are mounted on the sliding seat 211 with screws to restrict the hook-shaped part 213 to move only left and right. The two hook-shaped parts 213 are respectively mounted between the two pressure blocks 212. The four wear-resistant polyurethane washers 214 are mounted in the four mounting holes of the sliding seat 211 with transition fit to protect the moving mold.

[0028] The irregularly shaped rotating component 210 is a stepped shaft, thick in the middle and thin at both ends. Two symmetrical elongated holes are provided on the large circular end face in the middle, which serve as transmission functions. The hook-shaped component 213 is provided with a round boss that mates with the elongated holes of the irregularly shaped rotating component 210. The round boss can only slide within the elongated holes. The nameplate 202 is engraved with the words "extend" and "retract" to facilitate operation by the operator.

[0029] The mold docking part 3 is provided with an irregular stepped hole that cooperates with the front docking mechanism 2, and a mounting hole that cooperates with the moving mold, to assist the front docking mechanism 2 in pushing and pulling the moving mold.

[0030] like Figure 3 As shown, the mold mounting base 4 is provided with mounting holes that mate with two mating pins 502, mounting holes that mate with two quick clamps 503, and mounting holes that mate with mold tooling, for fixing and supporting the entire auxiliary device.

[0031] like Figure 3 As shown, the electric cylinder mounting base component 5 consists of an electric cylinder mounting base 501, a connecting pin 502, a quick clamp 503, and a square handle 504. The connecting pin 502 is screwed to the bottom of the electric cylinder mounting base 501, and the quick clamp 503 is screwed to both sides of the electric cylinder mounting base 501 to achieve quick installation and disassembly. The square handle 504 is screwed to the upper part of the electric cylinder mounting base 501 for easy handling by operators. The electric cylinder mounting base 501 is provided with an annular mounting hole for the servo electric cylinder 1 to fix the servo electric cylinder 1.

[0032] like Figure 4 As shown, the front-end docking mechanism 2 drives the irregularly shaped rotating component 210 to rotate together via the rotating handle 205. The irregularly shaped rotating component 210 drives two hook-shaped components 213 to extend and retract simultaneously through the symmetrical elongated holes on the left and right sides, thus realizing that the rotational motion of the handle 205 is transformed into the simultaneous extension of the two hook-shaped components 213 (as shown). Figure 6 (as shown) or retraction movement (such as) Figure 5 As shown in the diagram, this locks or separates the mold docking parts 3, ultimately achieving the connection and disconnection of this device from the moving mold. The servo electric cylinder 1 pushes or pulls back the front docking mechanism 2 and the moving mold via a push rod.

[0033] Before use, install the mold docking part 3 on the moving mold to form a whole, and install the mold mounting base 4 on the mold tooling to form a whole. Then, after assembling the servo electric cylinder 1, the electric cylinder mounting base part 5, and the front docking mechanism 2, the whole assembly is quickly installed with the mold mounting base 4 through two docking pins 502 and quick clamps 503.

[0034] During mold closing, the servo electric cylinder 1 pushes out the push rod, aligning the front docking mechanism 2 with the mold docking part 3. After the front docking mechanism 2 enters the mold docking part 3, the handle 205 is turned to rotate the hook-shaped part 213 to the extended state. The push rod of the servo electric cylinder 1 then pushes the moving mold towards the workpiece. When the moving mold is pressed against the workpiece or reaches the limit of the servo electric cylinder 1, the push rod stops moving. After mold closing is completed, the handle 205 is turned to rotate the hook-shaped part 213 to the retracted state, and the servo electric cylinder 1 retracts the push rod. At this time, the servo electric cylinder 1, the electric cylinder mounting base 5, the front docking mechanism 2, and the mold mounting base 4 can be quickly separated via two docking pins 502 and quick clamps 503.

[0035] During demolding, the servo electric cylinder 1 pushes out the push rod, and the front docking mechanism 2 enters the mold docking part 3. The handle 205 is turned to rotate the hook-shaped part 213 to the extended state, and the push rod of the servo electric cylinder 1 pulls the moving mold to the designated position. After demolding, the handle 205 is turned to rotate the hook-shaped part 213 to the retracted state, and the servo electric cylinder 1 fully retracts the push rod. At this point, the servo electric cylinder 1, the electric cylinder mounting base 5, and the front docking mechanism 2 can be quickly separated from the mold mounting base 4 via two docking pins 502 and quick clamps 503.

Claims

1. An auxiliary device for forming a T-shaped composite stringer for aircraft, characterized in that, Its structure includes a servo electric cylinder, a front-end docking mechanism, a mold docking component, a mold mounting base, and an electric cylinder mounting base assembly. The servo electric cylinder is mounted on the electric cylinder mounting base assembly with screws, and the front-end docking mechanism is mounted on the servo electric cylinder push rod through the external thread of the electric cylinder connector. The mold docking component is mounted on the moving mold as a whole. The mold mounting base is mounted on the mold tooling as a whole. After the servo electric cylinder, electric cylinder mounting base assembly, and front-end docking mechanism are assembled, they are quickly installed on the mold mounting base through two docking pins and quick clamps. The front-end docking mechanism consists of an electric cylinder connector, a nameplate, a tension spring, a tension spring support, a threaded seat, a handle, a handle mounting base, a cylindrical pin, a central connector, a shaped rotating component, a sliding seat, a hook-shaped component, a pressure block, and a wear-resistant polyurethane washer. The nameplate is screwed onto the electric cylinder connector, the electric cylinder connector is screwed onto the central connector, the sliding seat is also screwed onto the central connector, and the shaped rotating component is installed in the large stepped hole in the middle of the central connector. One end of the stepped shaft protrudes from the back of the central connector and is rounded. The pin is fixed in the handle mounting hole, and the handle is mounted on the handle mounting via external thread. The stepped shaft at the other end is mounted in the blind hole in the middle of the sliding seat. One of the two tension spring supports is mounted on the end face of the handle mounting, and the other is mounted on the end face of the middle connector via a threaded seat. The tension spring is hooked onto the two tension spring supports by hooks at both ends. Four pressure blocks are mounted on the sliding seat with screws, and two hook-shaped pieces are respectively mounted between the two pressure blocks. Four wear-resistant polyurethane washers are mounted in the four mounting holes of the sliding seat with an transition fit.

2. The auxiliary device for forming a T-shaped composite stringer for aircraft according to claim 1, characterized in that, The irregularly shaped rotating component is a stepped shaft, thick in the middle and thin at both ends, with two symmetrical elongated holes on the large circular end face in the middle; the hook-shaped component has a round boss that mates with the elongated holes of the irregularly shaped rotating component; the sign is engraved with the words "extend" and "retract".

3. The auxiliary device for forming a T-shaped composite stringer for aircraft according to claim 2, characterized in that, The mold docking component is provided with an irregular stepped hole that mates with the front docking mechanism; it is also provided with a mounting hole that mates with the moving mold.

4. The auxiliary device for forming a T-shaped composite stringer for aircraft according to claim 3, characterized in that, The mold mounting base is provided with mounting holes for engaging with two mating pins; mounting holes for engaging with two quick clamps; and mounting holes for engaging with mold tooling.

5. The auxiliary device for forming a T-shaped composite stringer for aircraft according to claim 4, characterized in that, The electric cylinder mounting base component consists of an electric cylinder mounting base, a connecting pin, a quick clamp, and a square handle; the connecting pin is screwed to the bottom of the electric cylinder mounting base; the quick clamp is screwed to both sides of the electric cylinder mounting base; the square handle is screwed to the upper part of the electric cylinder mounting base; the electric cylinder mounting base is provided with an annular mounting hole for the servo electric cylinder.

6. The auxiliary device for forming a T-shaped composite stringer for aircraft according to claim 5, characterized in that, The front-end docking mechanism (2) drives the irregular rotating part (210) to rotate together by rotating the handle (205). The irregular rotating part (210) drives the two hook-shaped parts (213) to extend and retract simultaneously through the left and right symmetrical elongated holes. This realizes that the rotational motion of the handle (205) is transformed into the simultaneous extension or retraction motion of the two hook-shaped parts (213), thereby locking or separating the mold docking part (3), and finally realizing the connection and separation of this device with the moving mold. The servo electric cylinder (1) pushes or pulls back the front docking mechanism (2) and the moving mold through the push rod.

7. The auxiliary device for forming a T-shaped composite stringer for aircraft according to claim 6, characterized in that, Before use, install the mold docking part (3) on the moving mold to form a whole, and install the mold mounting base (4) on the mold tooling to form a whole. Then, install the servo electric cylinder (1), the electric cylinder mounting base part (5), and the front docking mechanism (2) and quickly install them together with the mold mounting base (4) through two docking pins (502) and quick clamps (503). When the mold is closed, the servo electric cylinder (1) pushes out the push rod, and the front docking mechanism (2) docks with the mold docking part (3). After the front docking mechanism (2) enters the mold docking part (3), the handle (205) is turned to rotate the hook part (213) to the extended state. The push rod of the servo electric cylinder (1) will push the moving mold to move towards the workpiece. When the moving mold is pressed against the workpiece or reaches the limit of the servo electric cylinder (1), the push rod will stop moving. After the mold is closed, the handle (205) is turned to rotate the hook part (213) to the retracted state, and the servo electric cylinder (1) retracts the push rod. At this time, the servo electric cylinder (1), the electric cylinder mounting base part (5), the front docking mechanism (2) and the mold mounting base (4) are quickly removed by two docking pins (502) and quick clamps (503). When demolding, the servo electric cylinder (1) pushes out the push rod, and the front docking mechanism (2) enters the mold docking part (3). The handle (205) is turned to rotate the hook part (213) to the extended state, and the push rod of the servo electric cylinder (1) pulls the moving mold to the designated position. After demolding, the handle (205) is turned to rotate the hook part (213) to the retracted state, and the servo electric cylinder (1) completely retracts the push rod. At this time, the servo electric cylinder (1), the electric cylinder mounting base part (5), the front docking mechanism (2) and the mold mounting base (4) are quickly removed by two docking pins (502) and quick clamps (503).

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