Auxiliary device for forming T-shaped composite material stringer of airplane

Abstract

The invention discloses an auxiliary device for forming a T-shaped composite material stringer of an aircraft, relates to the field of aircraft manufacturing, and particularly relates to a paving and forming process of the T-shaped composite material stringer of an outer wing of the aircraft. The mechanism structurally comprises a servo electric cylinder, a front-end butt joint mechanism, a die butt joint piece, a die mounting seat and an electric cylinder mounting seat part. The front-end butt joint mechanism controls a pair of hook-shaped pieces to stretch out and retract at the same time through a rotating handle, so that the die butt joint pieces are locked or separated, finally, connection and disconnection between the device and a movable die are achieved, and the servo electric cylinder controls the front-end butt joint mechanism and the movable die to be pushed out and pulled back. According to the invention, the problems of high labor intensity and low efficiency of the traditional manual push-pull die pulling method are solved. Manual operation is replaced by semi-automatic operation, operation is easy, the labor intensity of workers is relieved, the movable mold is evenly and stably stressed, and the mold closing and demolding quality and efficiency are improved.

Description

Technical Field

[0001] The invention relates to the field of aircraft manufacturing, in particular to the laying and forming process of the T-shaped composite material long stringer of the aircraft outer wing, and the auxiliary forming mold performs left and right mold closing and demoulding of the fixed mold and the movable mold, and the auxiliary device has universality. Background Art

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

[0003] As the size of aircraft continues to grow, the length of the outer wing T-shaped composite long stringer is also getting longer and longer, and the molding molds used in the laying and molding process are also getting larger, which results in the dynamic molds that need to be pushed and pulled in the mold closing and demolding process becoming longer and heavier. The traditional method of pushing and pulling the dynamic mold is manual, which is labor-intensive and inefficient. Summary of the invention

[0004] In order to solve the above problems, reduce the labor intensity of workers, and improve the efficiency and quality of mold closing and demoulding, the present invention provides an auxiliary device for forming a T-shaped composite long stringer of an aircraft.

[0005] The present invention is realized through the following technical scheme: an auxiliary device for forming a T-shaped composite long stringer of an aircraft, the structure of which consists of a servo electric cylinder, a front end docking mechanism, a mold docking piece, a mold mounting seat, and an electric cylinder mounting seat component. The servo electric cylinder is mounted on the electric cylinder mounting seat 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 connecting piece, the mold docking piece is mounted on the movable mold to form an integral whole, and the mold mounting seat is mounted on the mold tooling to form an integral whole. After the servo electric cylinder, the electric cylinder mounting seat component, and the front end docking mechanism are installed, the whole is quickly installed with the mold mounting seat through two docking pins and a quick clamp.

[0006] Furthermore, the front end docking mechanism is composed of an electric cylinder connecting piece, a sign, a tension spring, a tension spring support, a threaded seat, a handle, a handle mounting seat, a cylindrical pin, a middle connecting piece, a special-shaped rotating piece, a sliding seat, a hook-shaped piece, a pressure block, and a wear-resistant polyurethane gasket. The sign is mounted on the electric cylinder connecting piece with screws, the electric cylinder connecting piece is mounted on the middle connecting piece with screws, the sliding seat is also mounted on the middle connecting piece with screws, the special-shaped rotating piece is mounted in the large step hole in the middle of the middle connecting piece, and the step shaft at one end protrudes from the back of the middle connecting piece It is fixed in the handle mounting seat hole with a cylindrical pin, the handle is mounted on the handle mounting seat through an 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 pillars is mounted on the end face of the handle mounting seat, and the other is mounted on the end face of the middle connecting piece through a threaded seat, the tension spring is hooked on the two tension spring pillars through hooks at both ends, four pressure blocks are mounted on the sliding seat with screws, two hook-shaped parts are respectively mounted between the two pressure blocks, and four wear-resistant polyurethane washers are installed in the four mounting holes of the sliding seat in a transition fit manner.

[0007] Furthermore, the special-shaped rotating part is a stepped shaft, which is thick in the middle and thin at both ends. Two symmetrical long holes are provided on the middle large circular end face. The hook-shaped part is provided with a round boss that cooperates with the long holes of the special-shaped rotating part. The sign is engraved with the words "extend" and "retract".

[0008] Furthermore, the mold docking piece is provided with an irregular step hole that cooperates with the front end docking mechanism, and is provided with a mounting hole that cooperates with the movable mold.

[0009] Furthermore, the mold mounting seat is provided with mounting holes that cooperate with two docking pins, with mounting holes that cooperate with two quick clamps, and with mounting holes that cooperate with the mold tooling.

[0010] Furthermore, the electric cylinder mounting seat component is composed of an electric cylinder mounting seat, a docking pin, a quick clamp, and a square handle. The docking pin is installed on the bottom of the electric cylinder mounting seat with screws, the quick clamp is installed on both sides of the electric cylinder mounting seat with screws, and the square handle is installed on the upper part of the electric cylinder mounting seat with screws. The electric cylinder mounting seat is provided with an annular mounting hole for the servo electric cylinder.

[0011] Before use, the mold docking parts are installed on the movable mold as a whole, and the mold mounting seat is installed on the mold tooling as a whole. After the servo electric cylinder, electric cylinder mounting seat components, and front-end docking mechanism are installed, the whole can be quickly installed or disassembled with the mold mounting seat through two docking pins and quick clamps. The front-end docking mechanism drives the special-shaped rotating parts to rotate together through the rotating handle. The special-shaped rotating parts drive a pair of hook-shaped parts to extend and retract at the same time through the long strip holes that are symmetrical on the left and right, thereby locking or separating the mold docking parts, and finally realizing the connection and disconnection between the device and the movable mold. The servo electric cylinder pushes or pulls back the front-end docking mechanism and the movable mold through the 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 disassembled quickly.

[0014] 2) High working stability, high positioning accuracy, high load-bearing capacity, and multiple ones can be used together according to the length of the movable mold.

[0015] 3) Simple operation, reducing the labor intensity of workers and improving the quality and efficiency of mold closing and demoulding.

[0016] 4) Make the dynamic mold force uniform and stable, and extend the life of the dynamic mold.

[0017] The present invention is further described in detail below with reference to the accompanying drawings of the embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is an exploded view of the front end docking mechanism;

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

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

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

[0023] Figure 6 It is a partial schematic diagram of the locking state of the front end docking mechanism and the mold docking piece;

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

[0025] Explanation of numbers in the figure: 1. Servo electric cylinder; 2. Front end docking mechanism; 201. Electric cylinder connecting piece; 202. Label; 203. Tension spring; 204. Handle mounting seat; 205. Handle; 206. Cylindrical pin; 207. Tension spring support; 208. Threaded seat; 209. Middle connecting piece; 210. Special-shaped rotating piece; 211. Sliding seat; 212. Press block; 213. Hook-shaped piece; 214. Wear-resistant polyurethane gasket; 3. Mold docking piece; 4. Mold mounting seat; 5. Electric cylinder mounting seat component; 501. Electric cylinder mounting seat; 502. Docking pin; 503. Quick clamp; 504. Square handle. DETAILED DESCRIPTION

[0026] Reference Figure 1As shown, an auxiliary device for forming a T-shaped composite long stringer of an aircraft, the mold is used for forming a T-shaped composite long stringer of an aircraft, and includes a movable mold and a fixed mold; its structure includes a servo electric cylinder 1, a front end docking mechanism 2, a mold docking piece 3, a mold mounting seat 4, and an electric cylinder mounting seat component 5. The servo electric cylinder 1 is mounted on the electric cylinder mounting seat component 5 with screws, and the front end docking mechanism 2 is mounted on the servo electric cylinder 1 push rod through the external thread of the electric cylinder connecting member 201. The mold docking piece 3 is installed on the movable mold to form a whole, and the mold mounting seat 4 is installed on the mold tooling to form a whole. After the servo electric cylinder 1, the electric cylinder mounting seat component 5, and the front end docking mechanism 2 are installed, the whole is quickly installed with the mold mounting seat 4 through two docking pins 502 and a quick clamp 503.

[0027] like Figure 2 As shown, the front end docking mechanism 2 is composed of an electric cylinder connecting member 201, a label 202, a tension spring 203, a handle mounting seat 204, a handle 205, a cylindrical pin 206, a tension spring support 207, a threaded seat 208, a middle connecting member 209, a special-shaped rotating member 210, and a sliding seat 211 (such as Figure 7 As shown), a pressing block 212, a hook-shaped member 213, and a wear-resistant polyurethane gasket 214 are composed. The sign 202 is mounted on the electric cylinder connecting member 201 with screws, the electric cylinder connecting member 201 is mounted on the middle connecting member 209 with screws, and the sliding seat 211 is also mounted on the middle connecting member 209 with screws. The special-shaped rotating member 210 is mounted in the large step hole in the middle of the middle connecting member 209. The step shaft at one end of the special-shaped rotating member 210 protrudes from the back of the middle connecting member 209 and is fixed in the hole of the handle mounting seat 204 with a cylindrical pin 206. The handle 205 is mounted on the handle mounting seat 204 through an external thread, and the step shaft at the other end of the special-shaped rotating member 210 is mounted on the sliding seat 2 In the blind hole in the middle of 11, one of the two tension spring pillars 207 is installed on the end face of the handle mounting seat 204, and the other is installed on the end face of the middle connecting member 209 through a threaded seat 208. The tension spring 203 is hooked on the two tension spring pillars 207 through hooks at both ends to eliminate the transmission gap and ensure that the hook-shaped member 213 is stably extended and retracted. Four pressure blocks 212 are installed on the sliding seat 211 with screws to limit the hook-shaped member 213 to move only left and right. The two hook-shaped members 213 are respectively installed between the two pressure blocks 212. Four wear-resistant polyurethane washers 214 are installed in the four mounting holes of the sliding seat 211 in a transition fit manner to protect the movable mold.

[0028] The special-shaped rotating part 210 is a stepped shaft, which is thick in the middle and thin at both ends. Two symmetrical long holes are provided on the large circular end face in the middle, which play a transmission role. The hook-shaped part 213 is provided with a round boss that cooperates with the long hole of the special-shaped rotating part 210. The round boss can only slide in the long hole. The sign 202 is engraved with the words "extend" and "retract" to facilitate the operation of the operator.

[0029] The mold docking member 3 is provided with an irregular step hole matched with the front end docking mechanism 2 and a mounting hole matched with the movable mold to assist the front end docking mechanism 2 in pushing and pulling the movable mold.

[0030] like Figure 3 As shown, the mold mounting seat 4 is provided with mounting holes that cooperate with two docking pins 502, with mounting holes that cooperate with two quick clamps 503, and with mounting holes that cooperate with the mold tooling, so as to fix and support the entire auxiliary device.

[0031] like Figure 3 As shown, the electric cylinder mounting seat component 5 is composed of an electric cylinder mounting seat 501, a docking pin 502, a quick clamp 503, and a square handle 504. The docking pin 502 is screwed to the bottom of the electric cylinder mounting seat 501, and the quick clamp 503 is screwed to both sides of the electric cylinder mounting seat 501 to achieve fast installation and disassembly. The square handle 504 is screwed to the upper part of the electric cylinder mounting seat 501 to facilitate the operator's transportation. The electric cylinder mounting seat 501 is provided with an annular mounting hole for the servo electric cylinder 1, which is used to fix the servo electric cylinder 1.

[0032] like Figure 4 As shown, the front end docking mechanism 2 drives the special-shaped rotating member 210 to rotate together by rotating the handle 205, and the special-shaped rotating member 210 drives the two hook-shaped members 213 to extend and retract at the same time through the long strip holes symmetrical on the left and right, so that the rotation movement of the handle 205 is converted into the simultaneous extension of the two hook-shaped members 213 (as shown in FIG. Figure 6 as shown) or retraction movement (as shown Figure 5 As shown), the mold docking member 3 is locked or separated, and finally the device is connected and disconnected with the movable mold. The servo electric cylinder 1 pushes or pulls back the front docking mechanism 2 and the movable mold through the push rod.

[0033] Before use, the mold docking part 3 is installed on the movable mold as a whole, and the mold mounting seat 4 is installed on the mold tooling as a whole. Then the servo electric cylinder 1, the electric cylinder mounting seat component 5, and the front end docking mechanism 2 are installed and the whole is quickly installed with the mold mounting seat 4 through two docking pins 502 and a quick clamp 503.

[0034] When closing the mold, the servo electric cylinder 1 pushes out the push rod, and the front end docking mechanism 2 is docked with the mold docking part 3. After the front end docking mechanism 2 enters the mold docking part 3, the handle 205 is pulled to rotate the hook-shaped part 213 to the extended state, and the push rod of the servo electric cylinder 1 will push the movable mold to move toward the workpiece. When the movable 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 closing is completed, the handle 205 is pulled 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 seat component 5, the front end docking mechanism 2 as a whole and the mold mounting seat 4 can be quickly removed through two docking pins 502 and the quick clamp 503.

[0035] When demoulding, the servo electric cylinder 1 pushes out the push rod, the front end docking mechanism 2 enters the mold docking part 3, the handle 205 is pulled to rotate the hook-shaped part 213 to the extended state, and the push rod of the servo electric cylinder 1 pulls the movable mold to separate to the specified position. After demoulding is completed, the handle 205 is pulled to rotate the hook-shaped 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 seat component 5, the front end docking mechanism 2 as a whole and the mold mounting seat 4 can be quickly removed through two docking pins 502 and a quick clamp 503.

Claims

1. An auxiliary device for forming a T-shaped composite long stringer for an aircraft, characterized in that: Its structure includes a servo electric cylinder, a front end docking mechanism, a mold docking piece, a mold mounting seat, and an electric cylinder mounting seat component; the servo electric cylinder is mounted on the electric cylinder mounting seat component 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 connecting piece; the mold docking piece is installed on the movable mold to form an integral whole; the mold mounting seat is installed on the mold tooling to form an integral whole; after the servo electric cylinder, the electric cylinder mounting seat component, and the front end docking mechanism are installed, the whole is quickly installed with the mold mounting seat through two docking pins and a quick clamp.

2. The auxiliary device for forming a T-shaped composite long stringer of an aircraft according to claim 1, characterized in that: The front end docking mechanism is composed of an electric cylinder connecting piece, a sign, a tension spring, a tension spring support, a threaded seat, a handle, a handle mounting seat, a cylindrical pin, a middle connecting piece, a special-shaped rotating piece, a sliding seat, a hook-shaped piece, a pressure block, and a wear-resistant polyurethane gasket; the sign is mounted on the electric cylinder connecting piece with screws, the electric cylinder connecting piece is mounted on the middle connecting piece with screws, the sliding seat is also mounted on the middle connecting piece with screws, the special-shaped rotating piece is mounted in the large step hole in the middle of the middle connecting piece, and the step shaft at one end protrudes from the back of the middle connecting piece with a round The pin is fixed in the handle mounting seat hole, the handle is mounted on the handle mounting seat through an external thread, and 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 pillars is mounted on the end face of the handle mounting seat, and the other is mounted on the end face of the middle connecting piece through a threaded seat, and the tension spring is hooked on the two tension spring pillars through hooks at both ends; four pressure blocks are mounted on the sliding seat with screws, and two hook-shaped parts are respectively mounted between the two pressure blocks; four wear-resistant polyurethane washers are mounted in the four mounting holes of the sliding seat in a transition fit manner.

3. The auxiliary device for forming a T-shaped composite long stringer of an aircraft according to claim 2, characterized in that: The special-shaped rotating part is a stepped shaft, which is thick in the middle and thin at both ends, and has two symmetrical long holes on the middle large circular end face; the hook-shaped part is provided with a round boss that matches the long holes of the special-shaped rotating part; the sign is engraved with the words "extend" and "retract".

4. The auxiliary device for forming a T-shaped composite long stringer of an aircraft according to claim 3, characterized in that: The mold docking piece is provided with an irregular step hole matched with the front end docking mechanism; and is provided with a mounting hole matched with the movable mold.

5. The auxiliary device for forming a T-shaped composite long stringer of an aircraft according to claim 4, characterized in that: The mold mounting seat is provided with mounting holes matched with two docking pins; is provided with mounting holes matched with two quick clamps; is provided with mounting holes matched with mold tooling.

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

7. The auxiliary device for forming a T-shaped composite long stringer of an aircraft according to claim 6, characterized in that: The front end docking mechanism (2) drives the special-shaped rotating part (210) to rotate together by rotating the handle (205), and the special-shaped rotating part (210) drives the two hook-shaped parts (213) to extend and retract at the same time through the long strip holes that are symmetrical on both sides, so that the rotational movement of the handle (205) is converted into the simultaneous extension or retraction movement of the two hook-shaped parts (213), thereby locking or separating the mold docking part (3), and finally realizing the connection and disconnection between the device and the movable mold; The servo electric cylinder (1) pushes or pulls back the front end docking mechanism (2) and the movable mold through a push rod.

8. The auxiliary device for forming a T-shaped composite long stringer of an aircraft according to claim 7, characterized in that: Before use, the mold docking piece (3) is first installed on the movable mold to form an integral whole, and the mold mounting seat (4) is installed on the mold tooling to form an integral whole. Then, the servo electric cylinder (1), the electric cylinder mounting seat component (5), and the front end docking mechanism (2) are installed, and the whole is quickly installed with the mold mounting seat (4) through two docking pins (502) and a quick clamp (503); When closing the mold, the servo electric cylinder (1) pushes out the push rod to connect the front end docking mechanism (2) with the mold docking member (3). After the front end docking mechanism (2) enters the mold docking member (3), the handle (205) is pulled to rotate the hook-shaped member (213) to an extended state, and the push rod of the servo electric cylinder (1) pushes the movable mold to move toward the workpiece. When the movable mold and the workpiece are pressed tightly or reach the limit of the servo electric cylinder (1), the push rod stops moving. After the mold closing is completed, the handle (205) is pulled to rotate the hook-shaped member (213) to a retracted state, and the servo electric cylinder (1) retracts the push rod. At this time, the servo electric cylinder (1), the electric cylinder mounting seat component (5), the front end docking mechanism (2) as a whole and the mold mounting seat (4) are quickly removed through two docking pins (502) and a quick clamp (503). When demoulding, the servo electric cylinder (1) pushes out the push rod, the front end docking mechanism (2) enters the mold docking part (3), the handle (205) is pulled to rotate the hook part (213) to the extended state, and the push rod of the servo electric cylinder (1) pulls the movable mold to separate to the specified position; after demoulding is completed, the handle (205) is pulled 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 seat component (5), the front end docking mechanism (2) and the mold mounting seat (4) are quickly removed as a whole through two docking pins (502) and a quick clamp (503).

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