CN220619337U

CN220619337U - Special-shaped curved surface preform needling device

Info

Publication number: CN220619337U
Application number: CN202322162262.5U
Authority: CN
Inventors: 黄伟华; 刘杰
Original assignee: Wuhan Huanyu Feilong New Material Technology Co ltd
Current assignee: Wuhan Huanyu Feilong New Material Technology Co ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-03-19
Anticipated expiration: 2033-08-11

Abstract

The utility model provides a needling device for a special-shaped curved surface preform, which comprises a support frame, wherein a connecting plate which is adjusted in a front-back sliding way is arranged in the support frame, a fixing plate which is adjusted in a lifting way is arranged on the connecting plate, a main shaft which is adjusted in an angle way is arranged on the fixing plate, and a wood pattern is fixedly arranged on the main shaft; the support frame is fixedly provided with a driving fixing frame, the driving fixing frame is provided with a driving mechanism, a needling plate which moves back and forth is arranged below the driving mechanism, and the needling plate is opposite to the wood pattern below. The wood die is arranged on the main shaft, can perform forward and backward sliding adjustment, lifting adjustment and angle adjustment, and is suitable for manufacturing the special-shaped revolving body curved surface prefabricated body; the distance between the wood die and the needle is adjusted in real time according to the increase of the thickness of the felt, so that automatic control is realized, the positioning accuracy is high, the needling quality and the production efficiency of the fiber felt preform are improved, and simultaneously, the needling is more uniform.

Description

Special-shaped curved surface preform needling device

Technical Field

The utility model relates to the field of needling machines, in particular to a needling device for a special-shaped curved surface preform.

Background

The quartz fiber has the characteristics of low dielectric constant and small dielectric loss, the dielectric constant of the quartz fiber is kept unchanged within 1 MHz-10 GHz, the dielectric loss tangent is changed from 0.0001 to 0.0002, and the dielectric property is changed less along with the temperature. The high-performance quartz fiber fabric has many advantages such as high purity, high strength, low dielectric, high wave permeability, few cloth cover defects, good process characteristics and the like, and is an ideal broadband wave-transmitting reinforcing material. Along with the development of weapon equipment and the progress of technology, quartz fiber is widely applied to the fields of aerospace, aviation, weapons, electronics and the like so as to meet the comprehensive requirements of the design on the material in aspects of electrical property, mechanical property, environmental resistance and the like, thereby further improving the comprehensive performance of the product. With the development of the quartz fiber preform, the quartz fiber preform is increasingly applied to articles such as spaceflight and aviation, particularly high Mach number aircrafts, radomes and the like, and is generally prepared by compounding quartz fiber fabrics and resin into an advanced broadband wave-transparent resin matrix composite material, so that the quartz fiber preform is a very important new material.

The needling machine of traditional form drives the needle through motor drive connecting rod and reciprocates from top to bottom to carry out the acupuncture on the coplanar to the quartzy fiber preform felt on the wood matrix, but the needle is many and can't move about, can only reciprocate to carry out the acupuncture to same position, the acupuncture quality is poor, to the solid of revolution wood matrix of abnormal shape conical surface and curved surface form, the current needling machine is all can't be fine suitable for, its degree of automation is low, the acupuncture inefficiency still needs the manual work to carry out the supplementary acupuncture, complex operation, intensity of labour is high, the dynamics of acupuncture is uneven with the acupuncture interval inadequately, make the finished product quality uneven.

Disclosure of Invention

The utility model mainly aims to provide a needling device for a special-shaped curved surface preform, which solves the problems in the background technology.

In order to solve the technical problems, the utility model adopts the following technical scheme: the wood die comprises a support frame, wherein a connecting plate capable of being adjusted in a front-back sliding mode is arranged in the support frame, a fixing plate capable of being adjusted in a lifting mode is arranged on the connecting plate, a main shaft capable of being adjusted in an angle is arranged on the fixing plate, and a wood die is fixedly arranged on the main shaft;

the support frame is fixedly provided with a driving fixing frame, the driving fixing frame is provided with a driving mechanism, a needling plate which moves back and forth is arranged below the driving mechanism, and the needling plate is opposite to the wood pattern below.

Preferably, a sliding component is arranged between the two sides of the connecting plate and the supporting frame, the two sides of the bottom of the supporting frame are also fixedly provided with mounting plates, and the sliding component is arranged on the mounting plates;

the sliding component is a sliding block and a sliding rail, the sliding rail is arranged at the bottom of the supporting frame and on the mounting plate, and the sliding block is arranged at the bottom of the connecting plate.

Preferably, a wire sleeve is fixedly arranged on one side of the connecting plate, a sliding screw rod in threaded connection is arranged in the wire sleeve, a second motor is fixedly arranged on one side of the supporting frame, and an output shaft of the second motor is fixedly connected with the end part of the sliding screw rod;

the sliding screw rod is driven to rotate through the second motor, so that the connecting plate is driven to slide and adjust forwards and backwards.

Preferably, the lifting screw rod is fixedly arranged around the support frame, the lifter is arranged between the fixing plate and the lifting screw rod and is in threaded connection with the lifting screw rod, and the lifter is fixed around the fixing plate.

Preferably, the lifters on two sides of the fixed plate are connected and synchronously rotated through connecting shafts, the connecting shafts on two sides are connected and rotated through a transmission mechanism, a first motor is fixedly arranged on the fixed plate, and the first motor is connected and driven with the connecting shafts on one side through the transmission mechanism.

Preferably, the upper supporting seat is fixedly arranged on two sides above the fixed plate, the lower supporting seat is fixedly arranged on two sides below the fixed plate, the upper supporting seat is provided with a rotating plate, the main shaft is propped against the rotating plate to rotate through the bearing seat, the lower supporting seat is provided with a rotating screw rod lifter (21), an angle screw rod in threaded connection is arranged in the screw rod lifter (21), and the end part of the angle screw rod is hinged to the end part of the rotating plate.

Preferably, a motor fixing plate is arranged on the rotating plate, the periphery of the motor fixing plate is fixed on the rotating plate through bolts and nuts, a third motor is fixedly arranged on the motor fixing plate, and the third motor is connected with the main shaft through a transmission mechanism.

Preferably, a rotating shaft in the driving mechanism is abutted against the driving fixing frame to rotate through a bearing seat, a fourth motor is fixedly arranged on one side of the driving fixing frame, and the fourth motor is connected with the end part of the rotating shaft through a transmission mechanism.

Preferably, a plurality of eccentric wheels are arranged on the rotating shaft, a connecting plate is arranged between the eccentric wheels and the needling plate, one end of the connecting plate is sleeved on the eccentric wheels through a bearing, and the other end of the connecting plate is hinged on the needling plate.

Preferably, a plurality of guide sleeves and guide posts are arranged between the driving fixing frame and the needling plate, the guide posts support against the guide sleeves to slide in, the guide posts are fixed on the needling plate, and the guide sleeves are fixed on the driving fixing frame.

The utility model provides a needling device for a special-shaped curved surface preform, which has the beneficial effects that:

1. the wood die is arranged on the main shaft and can perform forward and backward sliding adjustment, lifting adjustment and angle adjustment, so that the manufacturing method is suitable for manufacturing the special-shaped revolving body curved surface prefabricated body;

2. the driving mechanism drives the needling plate to reciprocate through the eccentric wheel, and simultaneously, the needling needle can reciprocate linearly through the guide post and the guide sleeve to directly face the felt for needling;

3. the distance between the wood die and the needle is adjusted in real time according to the increase of the thickness of the felt, so that automatic control is realized, the positioning accuracy is high, the needling quality and the production efficiency of the fiber felt preform are improved, and simultaneously, the needling is more uniform.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a front elevational view of the overall structure of the present utility model;

FIG. 2 is a top view of the overall structure of the present utility model;

FIG. 3 is a cross-sectional view A-A of FIG. 1 in accordance with the present utility model;

FIG. 4 is an enlarged view a of a portion of FIG. 1 in accordance with the present utility model;

FIG. 5 is an enlarged view b of a portion of FIG. 3 in accordance with the present utility model;

fig. 6 is a schematic view of the angle adjustment of fig. 5 according to the present utility model.

In the figure: a support frame 1; driving the fixing frame 2; a driving mechanism 3; a rotation shaft 301; flywheel 302; a fourth motor 303; a needling plate 4; a connection plate 5; lifting a screw rod 6; a fixing plate 7; a lifter 8; a first motor 9; a second motor 10; a slide assembly 11; a mounting plate 12; a sliding screw 13; a guide sleeve 14; a guide post 15; a silk sleeve 16; a connecting shaft 17; an upper support base 18; a rotating plate 19; a lower support base 20; a screw lifter 21; an angle screw 22; a motor fixing plate 23; a third motor 24; a main shaft 25; a wood pattern 26; a hinge seat 27.

Detailed Description

Example 1

As shown in fig. 1-6, a needling device for a special-shaped curved surface preform comprises a support frame 1, wherein a connecting plate 5 which is adjusted in a sliding way back and forth is arranged in the support frame 1, a fixing plate 7 which is adjusted in a lifting way is arranged on the connecting plate 5, a main shaft 25 which is adjusted in an angle is arranged on the fixing plate 7, and a wood pattern 26 is fixedly arranged on the main shaft 25;

the support frame 1 is fixedly provided with a driving fixing frame 2, the driving fixing frame 2 is provided with a driving mechanism 3, a needling plate 4 which moves back and forth is arranged below the driving mechanism 3, and the needling plate 4 is opposite to a wood pattern 26 below. From this structure, the fibre felt cladding carries out the acupuncture on wood pattern 26, can make abnormal shape wood pattern 26 and needled board 4 level arrangement through the angular adjustment of fixed plate 7, and the interval between wood pattern 26 and needled board 4 can be adjusted in the lift adjustment of fixed plate 7 simultaneously, adapts to different sizes wood pattern 26, still can increase along with the felt thickness, adjusts the interval between wood pattern 26 and the felting needle in real time. The fore-and-aft sliding adjustment of the connecting plate 5 enables the wood pattern 26 to be moved fore-and-aft to allow the needleboard 4 to cover a larger wood pattern 26, accommodating various sizes.

Preferably, a sliding component 11 is arranged between the two sides of the connecting plate 5 and the supporting frame 1, the two sides of the bottom of the supporting frame 1 are also fixedly provided with a mounting plate 12, and the sliding component 11 is arranged on the mounting plate 12;

the sliding component 11 is a sliding block and a sliding rail, the sliding rail is arranged on the bottom of the supporting frame 1 and the mounting plate 12, and the sliding block is arranged on the bottom of the connecting plate 5. With the structure, the connecting plate 5 is propped against the mounting plate 12 and the support frame 1 to slide through the sliding assembly 11, the sliding is smoother, and the connecting plate 5 can slide out of the support frame 1 for needling of the large-size wood die 26.

Preferably, a wire sleeve 16 is fixedly arranged on one side of the connecting plate 5, a sliding screw rod 13 in threaded connection is arranged in the wire sleeve 16, a second motor 10 is fixedly arranged on one side of the supporting frame 1, and an output shaft of the second motor 10 is fixedly connected with the end part of the sliding screw rod 13;

the second motor 10 drives the sliding screw rod 13 to rotate, so that the connecting plate 5 is driven to slide and adjust forwards and backwards.

Preferably, lifting screw rods 6 are fixedly arranged around the support frame 1, a lifter 8 is arranged between the fixing plate 7 and the lifting screw rods 6, the lifter 8 is in threaded connection with the lifting screw rods 6, and the lifter 8 is fixed around the fixing plate 7. With this structure, the lifter 8 is synchronously driven to engage with the lifting screw 6, so that the fixing plate 7 can be moved up and down in lifting adjustment.

Preferably, the lifters 8 on two sides of the fixed plate 7 are connected and synchronously rotate through connecting shafts 17, the connecting shafts 17 on two sides are connected and rotated through a transmission mechanism, a first motor 9 is fixedly arranged on the fixed plate 7, and the first motor 9 is connected and driven with the connecting shafts 17 on one side through the transmission mechanism. In this structure, the first motor 9 only drives the connecting shaft 17 on one side to rotate through the transmission mechanism, so that the two lifters 8 on one side can be driven to synchronously operate, and then the two lifters 8 on the other side can synchronously operate through the transmission mechanism connection transmission between the connecting shafts 17 on both sides.

Preferably, the upper supporting seat 18 is fixedly arranged on two sides above the fixed plate 7, the lower supporting seat 20 is fixedly arranged on two sides below, the rotating plate 19 is arranged on the upper supporting seat 18, the main shaft 25 is abutted against the rotating plate 19 through the bearing seat to rotate, the rotating screw rod lifter 21 is arranged on the lower supporting seat 20, the screw rod lifter 21 is internally provided with the angle screw rod 22 in threaded connection, and the end part of the angle screw rod 22 is hinged to the end part of the rotating plate 19. With this structure, the screw lifter 21 drives the angle screw 22 to move up and down, so that the end of the angle screw 22 pushes the rotating plate 19 to rotate, and the side of the wood pattern 26 mounted on the spindle 25 is level with the needling plate 4. Wherein the rotation plate 19 both ends are supported and are leaned against the upper supporting seat 18 through the bearing frame and rotate, and the lead screw lift 21 both ends are supported and are leaned against the lower supporting seat 20 through the bearing and rotate, and the lead screw lift 21 includes driving motor and worm gear, and driving motor drive worm rotates, drives the worm wheel and rotates, worm wheel and angle lead screw 22 threaded connection to make angle lead screw 22 reciprocate. A hinging seat 27 is fixedly arranged below the end part of the rotating plate 19, and the end part of the angle screw 22 is abutted against the hinging seat 27 through a pin shaft to rotate.

Preferably, a motor fixing plate 23 is arranged on the rotating plate 19, the periphery of the motor fixing plate 23 is fixed on the rotating plate 19 through bolts and nuts, a third motor 24 is fixedly arranged on the motor fixing plate 23, and the third motor 24 is connected with a main shaft 25 through a transmission mechanism. With this structure, the heights of the two sides of the motor fixing plate 23 on the bolts are adjusted by nuts, so that the tension of the transmission mechanism is adjusted.

Preferably, the rotating shaft 301 in the driving mechanism 3 is abutted against the driving fixing frame 2 to rotate through a bearing seat, a fourth motor 303 is fixedly arranged on one side of the driving fixing frame 2, and the fourth motor 303 is connected with the end part of the rotating shaft 301 through a transmission mechanism. With this structure, the flywheel 302 is fixed to the end of the rotating shaft 301, and the fourth motor 303 drives the flywheel 302 to rotate through the transmission mechanism.

Preferably, the rotating shaft 301 is provided with a plurality of eccentric wheels, a connecting plate 5 is arranged between the eccentric wheels and the needling plate 4, one end of the connecting plate 5 is sleeved on the eccentric wheels through a bearing, and the other end is hinged on the needling plate 4. With this structure, the rotation shaft 301 is driven to rotate by the fourth motor 303, so that the eccentric drives the connection plate 5 and the needling plate 4 to move up and down.

Preferably, a plurality of guide sleeves 14 and guide posts 15 are arranged between the driving fixing frame 2 and the needling board 4, the guide posts 15 are propped against the guide sleeves 14 to slide, the guide posts 15 are fixed on the needling board 4, and the guide sleeves 14 are fixed on the driving fixing frame 2. With this structure, the up-and-down movement and displacement by the eccentric wheel can be linearly and reciprocally moved by the guidance of the plurality of guide sleeves 14 and the guide posts 15.

Preferably, the transmission mechanism is a sprocket and chain transmission or a synchronous belt and synchronous pulley transmission.

The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.

Claims

1. A needling device for a special-shaped curved surface preform is characterized in that: the wood die comprises a support frame (1), wherein a connecting plate (5) which is adjusted in a sliding way back and forth is arranged in the support frame (1), a fixed plate (7) which is adjusted in a lifting way is arranged on the connecting plate (5), a main shaft (25) which is adjusted in an angle way is arranged on the fixed plate (7), and a wood die (26) is fixedly arranged on the main shaft (25);

the support frame (1) is fixedly provided with a driving fixing frame (2), the driving fixing frame (2) is provided with a driving mechanism (3), a needling plate (4) which moves back and forth is arranged below the driving mechanism (3), and the needling plate (4) is opposite to a wood pattern (26) below.

2. The needling apparatus of a contoured preform according to claim 1, wherein: a sliding component (11) is arranged between the two sides of the connecting plate (5) and the supporting frame (1), the two sides of the bottom of the supporting frame (1) are fixedly provided with mounting plates (12), and the sliding component (11) is arranged on the mounting plates (12);

the sliding component (11) is a sliding block and a sliding rail, the sliding rail is arranged at the bottom of the supporting frame (1) and on the mounting plate (12), and the sliding block is arranged at the bottom of the connecting plate (5).

3. The needling apparatus of a contoured preform according to claim 1, wherein: a wire sleeve (16) is fixedly arranged on one side of the connecting plate (5), a sliding screw rod (13) in threaded connection is arranged in the wire sleeve (16), a second motor (10) is fixedly arranged on one side of the supporting frame (1), and an output shaft of the second motor (10) is fixedly connected with the end part of the sliding screw rod (13);

the second motor (10) drives the sliding screw rod (13) to rotate, so that the connecting plate (5) is driven to slide and adjust forwards and backwards.

4. The needling apparatus of a contoured preform according to claim 1, wherein: lifting screw rods (6) are fixedly arranged around the support frame (1), a lifter (8) is arranged between the fixing plate (7) and the lifting screw rods (6), the lifter (8) is in threaded connection with the lifting screw rods (6), and the lifter (8) is fixed around the fixing plate (7).

5. The needling apparatus of a contoured preform of claim 4, wherein: the lifters (8) on two sides of the fixed plate (7) are connected and synchronously rotate through connecting shafts (17), the connecting shafts (17) on two sides are connected and rotate through a transmission mechanism, a first motor (9) is fixedly arranged on the fixed plate (7), and the first motor (9) is connected and driven with the connecting shafts (17) on one side through the transmission mechanism.

6. The needling apparatus of a contoured preform according to claim 1, wherein: the fixed plate (7) top both sides have set firmly supporting seat (18), and the below both sides have set firmly lower supporting seat (20), are equipped with pivoted rotating plate (19) on last supporting seat (18), and main shaft (25) support and lean on rotating plate (19) through the bearing frame and rotate, are equipped with pivoted lead screw lift (21) on lower supporting seat (20), are equipped with threaded connection's angle lead screw (22) in lead screw lift (21), and angle lead screw (22) tip articulates at rotating plate (19) tip.

7. The needling apparatus of a contoured preform of claim 6, wherein: the rotating plate (19) is provided with a motor fixing plate (23), the periphery of the motor fixing plate (23) is fixed on the rotating plate (19) through bolts and nuts, the motor fixing plate (23) is fixedly provided with a third motor (24), and the third motor (24) is connected with the main shaft (25) through a transmission mechanism.

8. The needling apparatus of a contoured preform according to claim 1, wherein: a rotating shaft (301) in the driving mechanism (3) is abutted against the driving fixing frame (2) through a bearing seat to rotate, a fourth motor (303) is fixedly arranged on one side of the driving fixing frame (2), and the fourth motor (303) is connected with the end part of the rotating shaft (301) through a transmission mechanism.

9. The special-shaped curved surface preform needling apparatus as defined in claim 8, wherein: a plurality of eccentric wheels are arranged on the rotating shaft (301), a connecting plate (5) is arranged between the eccentric wheels and the needling plate (4), one end of the connecting plate (5) is sleeved on the eccentric wheels through a bearing, and the other end is hinged on the needling plate (4).

10. The special-shaped curved surface preform needling apparatus as defined in claim 9, wherein: a plurality of guide sleeves (14) and guide posts (15) are arranged between the driving fixing frame (2) and the needling plate (4), the guide posts (15) are propped against the guide sleeves (14) to slide, the guide posts (15) are fixed on the needling plate (4), and the guide sleeves (14) are fixed on the driving fixing frame (2).