Multifunctional rotary body preform inner wall needling device

Abstract

The application discloses a multifunctional rotary body prefabricated body inner wall needling device, which comprises a rack, a hollow clamping turntable is installed at the bottom of the rack, a prefabricated body buffering support mold is fixed on the hollow clamping turntable, a needling support beam is installed in the prefabricated body buffering support mold, a needling mechanism is movably arranged at the middle part of the needling support beam, and the two ends of the needling support beam pass through the prefabricated body buffering support mold and the hollow clamping turntable and are connected with X-axis moving assemblies arranged on the rack. Through the above design, the technical problems that the needling connection density of the outer wall of the existing rotary body prefabricated body is lower than that of the inner wall, the composite material is delaminated under the condition that the flight environment is severe, and the needling of the cylindrical prefabricated body and the conical prefabricated body cannot be simultaneously completed on the same device are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of non-woven fabric preform production, in particular to a multifunctional rotary body preform inner wall needling device. BACKGROUND

[0002] The fiber preform 100 is the main reinforcing structure of the heat-resistant composite material. With the wide application of composite materials on aircraft, the demand for fiber preforms 100 gradually increases. At present, there are many production equipment for fiber preforms 100, mainly including flat piece preform needling equipment and rotary body preform needling equipment. The rotary body preform needling equipment is divided into cylindrical preform needling equipment and conical preform needling equipment. The working principle of the preform needling product is to connect the fabrics of each unit layer by using needles. Each unit layer is needled once. Since the needling depth is much greater than the thickness of each unit layer fabric, the first layer of unit layer has the highest needling density, and the needling density of the subsequent unit layer decreases in turn. After needling, the last unit layer of the preform product has only one needling connection density.

[0003] At present, all types of rotary body preform needling equipment have the needling device arranged on the outer wall side of the rotary body. Therefore, the needling connection density of the outer wall of the rotary body preform is obviously lower than that of the inner wall. During flight of the aircraft, the outer wall of the preform is directly contacted with the air flow of the aircraft, which may cause delamination of the composite material under severe flight environment.

[0004] At present, there are special-shaped needling equipment with mechanical arm needling mechanism. Although the needling mechanism can adjust the angle and can simultaneously needle the cylindrical and conical preforms, large-scale batch production of such special-shaped needling equipment does not have the function of adjusting the angle of the needling head. The cylindrical and conical preforms cannot be simultaneously needled on the same equipment, and the equipment compatibility is low.

[0005] Therefore, the present application provides a multifunctional rotary body preform inner wall needling device to solve the above problems. SUMMARY

[0006] The present application aims to overcome the defects in the prior art and provide a multifunctional rotary body preform inner wall needling device.

[0007] To achieve the above-mentioned purpose, the following technical solutions are adopted in the present application:

[0008] The utility model provides a multifunctional rotary body prefabricated body inner wall needling device, including: frame, the bottom of frame is installed with hollow clamping turntable, and the hollow clamping turntable is fixed with prefabricated body buffer support mould, and the prefabricated body buffer support mould is installed with needle support beam in, and the needle support beam middle part is equipped with needle mechanism, and the needle support beam both ends are out of prefabricated body buffer support mould and hollow clamping turntable respectively with X axle moving assembly arranged on frame are connected,

[0009] The needle support beam side is equipped with rising rack, and the other side is equipped with boss, and the boss back is equipped with needle head moving rack for the moving path of needle mechanism,

[0010] The needle mechanism includes moving table, and the moving table is provided with limiting sliding slot matched with the boss and transmission groove communicated with the limiting sliding slot, and the outer wall of moving table is fixed with climbing motor, and the output end of climbing motor is installed in transmission groove and is equipped with transmission gear, and transmission gear is meshed with the needle head moving rack of boss and is connected, for driving moving table to move up and down on needle support beam,

[0011] The needle mechanism includes moving table, and the moving table is provided with limiting sliding slot matched with the boss and transmission groove communicated with the limiting sliding slot, and the outer wall of moving table is fixed with climbing motor, and the output end of climbing motor is installed in transmission groove and is equipped with transmission gear, and transmission gear is meshed with the needle head moving rack of boss and is connected, for driving moving table to move up and down on needle support beam,

[0012] Preferably, the X-axis moving assembly includes: two spaced-apart fixed plates, the adjacent side of the two fixed plates is provided with a moving track, the moving track is provided with a support beam fixing seat, one side of the support beam fixing seat is provided with a screw rod translation mechanism for driving the support beam fixing seat to move left and right, and the X-axis moving assembly has two groups, which are symmetrically arranged at the top and bottom of the frame.

[0013] Preferably, the middle part of the support beam fixing seat at the top of the frame is further provided with a limiting groove for limiting the rising track of the needle support beam, one side of the limiting groove is provided with a rising motor, and the output shaft of the rising motor is connected with a gear matched with the rising rack of the needle support beam.

[0014] Preferably, the hollow clamping turntable includes a turntable and a clamping disc fixed on the turntable, the outer ring of the turntable is continuously provided with teeth, and one side is provided with a servo motor, and the output shaft of the servo motor is fixed with a gear matched with the teeth.

[0015] Preferably, the two fixed plates at the bottom of the frame are provided with a rotating groove, and the bottom of the turntable is provided with a rotating step matched with the rotating groove.

[0016] Preferably, the clamping disc is a four-jaw self-centering chuck.

[0017] Preferably, the needle support beam is provided with a threaded hole at the bottom, and the support beam fixing seat at the bottom of the frame is provided with a locking bolt matched with the threaded hole.

[0018] Preferably, the needle head is a multi-rod cylinder, and the output end of the multi-rod cylinder is provided with a plurality of needles.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] 1. High connection density of the prefabricated body outer wall

[0021] The needle head of the present application is arranged inside the rotary prefabricated body, the first layer of unit layer is laid on the slow support mold of the prefabricated body, and the needle head is sequentially needled from the first layer of unit layer to the inner wall unit layer of the prefabricated body. The connection density of the outer wall unit layer is much higher than that of the inner wall which is needled last. After the composite material is formed, it can meet the severe flight environment of the aircraft.

[0022] 2. Realize needle punching of prefabricated bodies of rotary bodies of multiple sizes

[0023] The needle head of the present application is installed on the needle support beam, and the needle support beam can move left and right through the support beam fixing seat, so as to realize the horizontal movement of the needle head. The needle head can move up and down through the needle support beam, so as to realize needle punching of prefabricated bodies of rotary bodies of multiple sizes in different diameter ranges and different height ranges.

[0024] 3. Compatible with needle punching of cylindrical prefabricated bodies and conical prefabricated bodies

[0025] In the present application, the needle head is provided with an angle adjusting device, and the needle head is parallel to the needle support beam, so as to needle punch the cylindrical rotary prefabricated body. The needle head has a certain angle with the needle support beam, so as to needle punch the conical rotary body with the same angle. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0027] Figure 2 It is a schematic diagram of the frame structure of the present application;

[0028] Figure 3 It is a schematic diagram of the moving table structure of the present application;

[0029] Figure 4 It is a schematic diagram of the needle punching mechanism structure of the present application;

[0030] Figure 5 It is a schematic diagram of the cross section structure of the needle punching mechanism of the present application;

[0031] Figure 6 It is a schematic diagram of the needle support beam structure of the present application;

[0032] Figure 7 A schematic diagram of the needle support beam structure of the present application;

[0033] Figure 8 A schematic diagram of the hollow clamping turntable structure of the present application;

[0034] Figure 9 A schematic diagram of the rotating step structure of the turntable of the present application;

[0035] Figure 10 A schematic diagram of the prefabricated body buffer support mold structure of the present application;

[0036] Figure 11 A schematic diagram of the fiber prefabricated body structure of the present application;

[0037] Figure 12 A schematic diagram of the support beam fixing seat structure at the top of the rack of the present application.

[0038] In the figure: 1, rack; 2, hollow clamping turntable; 21, turntable; 211, rotating step; 22, clamping disc; 23, servo motor; 3, prefabricated body buffer support mold; 4, needle support beam; 41, rising rack; 42, boss; 421, needle moving rack; 43, locking bolt; 5, needle mechanism; 51, moving table; 52, limiting sliding groove; 53, transmission groove; 54, climbing motor; 541, transmission gear; 55, needle head; 551, needle; 552, turbine strip; 56, adjusting motor; 561, worm; 6, X-axis moving assembly; 61, fixed plate; 611, rotating groove; 62, moving track; 63, support beam fixing seat; 631, limiting groove; 632, rising motor; 64, screw translation mechanism. DETAILED DESCRIPTION

[0039] A preferred embodiment of the present application will be described below with reference to the accompanying drawings, which clearly and completely describe the technical solutions in the preferred embodiment of the present application.

[0040] A multifunctional rotary body prefabricated body inner wall needling device, comprising: a rack 1, a hollow clamping turntable 2 is installed at the bottom of the rack 1, a prefabricated body buffer support mold 3 is fixed on the hollow clamping turntable 2, a needle support beam 4 is installed in the prefabricated body buffer support mold 3, a needle mechanism 5 is movably arranged in the middle of the needle support beam 4, and the two ends of the needle support beam 4 pass through the prefabricated body buffer support mold 3 and the hollow clamping turntable 2 and are connected with an X-axis moving assembly 6 arranged on the rack 1;

[0041] The needle support beam 4 is provided with a rising rack 41 on one side and a boss 42 on the other side, and the boss 42 is provided with a needle moving rack 421 which provides a moving path for the needle mechanism 5;

[0042] The needle pricking mechanism 5 comprises a moving table 51, the moving table 51 is provided with a limiting sliding groove 52 matched with the boss 42 and a transmission groove 53 communicated with the limiting sliding groove 52, the outer wall of the moving table 51 is fixed with a climbing motor 54, the output end of the climbing motor 54 is installed in the transmission groove 53 and is provided with a transmission gear 541, the transmission gear 541 is meshed and connected with the needle moving rack 421 of the boss 42, and is used for driving the moving table 51 to move up and down on the needle pricking support beam 4;

[0043] The needle pricking mechanism 5 comprises a moving table 51, the moving table 51 is provided with a limiting sliding groove 52 matched with the boss 42 and a transmission groove 53 communicated with the limiting sliding groove 52, the outer wall of the moving table 51 is fixed with a climbing motor 54, the output end of the climbing motor 54 is installed in the transmission groove 53 and is provided with a transmission gear 541, the transmission gear 541 is meshed and connected with the needle moving rack 421 of the boss 42, and is used for driving the moving table 51 to move up and down on the needle pricking support beam 4;

[0044] The hollow clamping rotating disc 2 and the prefabricated body buffering support mode 3 are sequentially installed in the rack 1, the needle pricking support beam 4 is installed in the prefabricated body buffering support mode 3, the needle pricking mechanism 5 is installed on the needle pricking support beam 4, the needle pricking support beam 4 can move left and right through the X-axis moving assembly 6 on the rack 1, the needle pricking mechanism 5 can move horizontally, the needle pricking mechanism 5 can also move up and down on the needle pricking support beam 4, and the needle pricking mechanism 5 can realize needle pricking of prefabricated bodies of multiple sizes of rotary bodies in different diameter ranges and different height ranges.

[0045] The climbing motor 54 fixed to the outer wall of the moving table 51 has a gear transmission mechanism, the transmission gear 541 is meshed with the needle moving rack 421 of the boss 42 as shown in the drawings, Figure 6 and Figure 7 the moving table 51 moves up and down on the needle pricking support beam 4 is realized;

[0046] The moving table 51 is fixed with the adjusting motor 56, the output end of the adjusting motor 56 extends into the moving table 51 and is provided with the worm 561, the back of the needle pricking head 55 is provided with the turbine strip 552, the angle of the needle pricking head 55 can be adjusted by driving the adjusting motor 56, the adjustment range is 0°-15°, the needle pricking of the conical cabin prefabricated body with a conical angle of less than 15° can be covered, the needle pricking head 55 is installed with 5 rows of longitudinal and 25 rows of transverse needles 551, and the needle pricking head 55 is provided with an air inlet hole, and pneumatic driving can realize effective needle pricking of the inner wall of the fiber prefabricated body 100.

[0047] When the needle 551 is used for needling, the staff pre-lays a layer of the prefabricated body unit layer on the prefabricated body buffer support mold 3, and the needle 551 penetrates through the prefabricated body unit layer, so that the prefabricated body unit layer is connected by needling.

[0048] Finally, the needle head 55 is adjusted to be parallel to the needle support beam 4, so that the prefabricated body of the cylindrical rotary body is needled, and the needle head 55 is adjusted to have a certain angle with the needle support beam 4, so that the prefabricated body of the conical rotary body with the same angle is needled.

[0049] Specifically, the X-axis moving assembly 6 comprises two fixed plates 61 arranged at intervals, a moving track 62 is formed on one side of the two fixed plates 61, a support beam fixing seat 63 is arranged on the moving track 62, a screw translation mechanism 64 is arranged on one side of the support beam fixing seat 63, and the support beam fixing seat 63 is driven to move left and right.

[0050] Through the above design, the screw translation mechanism 64 drives the support beam fixing seat 63 to move left and right along the moving track 62, and drives the needle support beam 4 to move left and right, so that the inner wall of the prefabricated body of the rotary body is needled.

[0051] Specifically, a limiting groove 631 is further formed in the middle of the support beam fixing seat 63 arranged on the top of the rack 1, and is used for limiting the rising track of the needle support beam 4.

[0052] Through the above design, the rising motor 632 is driven, the limiting groove 631 provides track limiting for the needle support beam 4 when rising, and the needle support beam 4 is moved in the vertical direction, so that the needle support beam 4 is lifted to a certain height by the rising motor 632 when the needle support beam 4 is installed in the prefabricated body buffer support mold 3, and sufficient space is left for installing the prefabricated body support mold 3.

[0053] Specifically, the hollow clamping turntable 2 comprises a turntable 21 and a clamping disc 22 fixed on the turntable 21, the outer circle of the turntable 21 is continuously provided with teeth, and one side is provided with a servo motor 23.

[0054] As Figure 8As shown in the drawings, in the present application, the rotating disc 21 is evenly distributed with teeth, and the clamping disc 22 is provided with four clamping jaws, which can realize clamping and fixing of the prefabricated body cushioning support mold of different shapes.

[0055] Specifically, the two fixed plates 61 at the bottom of the rack 1 are provided with rotating grooves 611, and the rotating disc 21 is provided with rotating steps 211 matched with the rotating grooves 611.

[0056] As shown in the drawings, Figure 2 and Figure 9 As shown in the drawings, in the present application, the rotating steps 211 of the hollow clamping rotating disc 2 rotate around the axis of the rotating grooves 611 at the bottom of the rack 1, which ensures that the needle-punched prefabricated body inner wall is at every angle.

[0057] Specifically, the clamping disc 22 is a four-jaw self-centering chuck.

[0058] Specifically, the needle-punched support beam 4 is provided with a threaded hole at the bottom, and the support beam fixing seat 63 at the bottom of the rack 1 is provided with a locking bolt 43 matched with the threaded hole.

[0059] As shown in the drawings, Figure 6 and Figure 7 As shown in the drawings, the needle-punched support beam 4 is fixed through the threaded hole and the locking bolt 43 of the support beam fixing seat 63 at the bottom of the rack 1, so that after the needle-punched support beam 4 is lowered to the support beam fixing seat 63, it is fixed and locked by using the threaded structure.

[0060] Specifically, the needle-punched head 55 is a multi-rod air cylinder, and the multi-rod air cylinder output end is provided with a plurality of needle 551.

[0061] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multifunctional rotating precast body inner wall needle-punching device, characterized in that, include: A frame (1) is provided. A hollow clamping turntable (2) is installed at the bottom of the frame (1). A prefabricated buffer support mold (3) is fixed on the hollow clamping turntable (2). A needle-punching support beam (4) is installed inside the prefabricated buffer support mold (3). A needle-punching mechanism (5) is provided in the middle of the needle-punching support beam (4). The two ends of the needle-punching support beam (4) pass through the prefabricated buffer support mold (3) and the hollow clamping turntable (2) and are respectively connected to the X-axis moving assembly (6) set on the frame (1). The needle support beam (4) has an ascending rack (41) on one side and a boss (42) on the other side. The back of the boss (42) is provided with a needle moving rack (421) that provides a moving path for the needle mechanism (5). The needle-punching mechanism (5) includes a movable stage (51), which has a limiting groove (52) that matches the boss (42) and a transmission groove (53) that communicates with the limiting groove (52). A climbing motor (54) is fixed on the outer wall of the movable stage (51). The output end of the climbing motor (54) is installed in the transmission groove (53) and is provided with a transmission gear (541). The transmission gear (541) meshes with the needle movement rack (421) of the boss (42) to drive the movable stage (51) to move up and down on the needle-punching support beam (4). The moving platform (51) is also equipped with a needle punch head (55). One side of the needle punch head (55) is located inside the moving platform (51), and the other side is located outside the moving platform (51) and is equipped with multiple needles (551). The needle punch head (55) located inside the moving platform (51) is equipped with a turbine bar (552). The bottom of the moving platform (51) is also fixed with an adjustment motor (56). The output end of the adjustment motor (56) is located inside the moving platform (51) and is equipped with a worm gear (561). The worm gear (561) is meshed with the turbine bar (552) and is used to adjust the left and right swing angle of the needle punch head (55).

2. The multifunctional rotating precast inner wall needle-punching device according to claim 1, characterized in that: The X-axis moving assembly (6) includes: two spaced-apart fixed plates (61), a moving track (62) is provided on the adjacent side of the two fixed plates (61), a support beam fixing seat (63) is provided on the moving track (62), and a screw translation mechanism (64) is provided on one side of the support beam fixing seat (63) to drive the support beam fixing seat (63) to move left and right; there are two sets of the X-axis moving assembly (6), which are symmetrically arranged at the top and bottom of the frame (1).

3. The multifunctional rotating precast inner wall needle-punching device according to claim 2, characterized in that: A limiting groove (631) is also provided in the middle of the support beam fixing seat (63) at the top of the frame (1) to limit the upward trajectory of the needle support beam (4). A rising motor (632) is provided on one side of the limiting groove (631), and the output shaft of the rising motor (632) is connected to a gear that matches the rising rack (41) of the needle support beam (4).

4. The multifunctional rotating precast inner wall needle-punching device according to claim 1, characterized in that: The hollow clamping turntable (2) includes a turntable (21) and a clamping plate (22) fixed on the turntable (21). The outer ring of the turntable (21) has teeth continuously distributed, and a servo motor (23) is provided on one side. The output shaft of the servo motor (23) is fixed with a gear that matches the teeth.

5. The multifunctional rotary precast inner wall needle-punching device according to any one of claims 2 and 4, characterized in that: Two fixed plates (61) located at the bottom of the frame (1) are provided with rotating grooves (611), and the bottom of the turntable (21) is provided with rotating steps (211) that are adapted to the rotating grooves (611).

6. The multifunctional rotating precast inner wall needle-punching device according to claim 4, characterized in that: The clamping plate (22) is a four-jaw self-centering chuck.

7. The multifunctional rotating precast inner wall needle-punching device according to claim 2, characterized in that: The needle support beam (4) has a threaded hole at its bottom, and the support beam fixing seat (63) at the bottom of the frame (1) is provided with a locking bolt (43) that matches the threaded hole.

8. The multifunctional rotating precast inner wall needle-punching device according to claim 3, characterized in that: The needle-punching head (55) is a multi-rod cylinder, and the output end of the multi-rod cylinder is provided with multiple needles (551).

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