CN110394997B - Wire laying equipment for ring frame composite material workpiece and working method - Google Patents

Abstract

The wire laying equipment for the ring-frame composite material workpiece comprises a fixed frame, a rotary table, a plurality of ring-frame molds, a wire laying mechanism and a local pressure applying mechanism, wherein the rotary table is rotatably arranged on the fixed frame; the fiber laying mechanism comprises a 0-degree fiber laying head with the fiber distribution direction in the same direction as the extension direction of the ring frame and a plurality of non-0-degree fiber laying heads with the fiber distribution direction different from the extension direction of the ring frame. The automatic ring frame composite material forming machine can automatically lay a plurality of ring frame composite material parts at one time, and greatly improves the forming quality and the forming efficiency of the complex structure. Based on the method, the application also provides a working method.

Description

A kind of wire laying equipment and working method of ring frame composite material parts

technical field

The invention relates to the field of automatic composite material manufacturing, in particular to forming equipment for ring frame composite material parts, which is particularly suitable for automatic forming of Z-shaped composite material ring frames with equal cross-section and equal curvature radius.

Background technique

The frame structure is an important part of the aircraft structure. It is often used as an aircraft bulkhead or other skeleton parts. It directly affects the accuracy of the aircraft shape and the structural bearing capacity, and plays an important role in the overall frame of the aircraft. However, due to the complex structure of composite beams and frames, various cross-sectional forms, and large changes in curvature, it is difficult to manufacture. The cross-sectional shapes of common ring frames are C-shaped, Z-shaped, L-shaped, hat-shaped, etc. Due to the advantages of high structural efficiency and low difficulty in quality inspection, the Z-section frame structure is widely used.

At present, the forming method of the composite frame structure is the thermal diaphragm forming process. This molding method is to combine automatic tape laying technology and diaphragm molding technology. First, use automatic tape laying equipment to lay out the prepreg tape layer, and then transfer it to the diaphragm machine forming machine. On the surface of the prepreg tape layer It is covered with a layer of high ductility diaphragm, which is completely fitted on the curved mold by the action of vacuum negative pressure and heating equipment to preform the required structure.

The molding equipment for common composite frame structures cannot obtain good molding quality and work efficiency, and is not suitable for large-thickness Z-shaped composite ring frames.

Therefore, how to carry out research and development improvement in view of the shortcomings of the above-mentioned existing technology is actually the goal of the relevant industry to strive for research and development. In view of this, the designer of the present application has thought about the idea of creation, and designed it with many years of experience. After many discussions and trial samples, and many revisions and improvements, this application is launched.

SUMMARY OF THE INVENTION

In order to solve one or more of the above technical problems, the present application provides wire laying equipment and working methods for ring-frame composite parts.

On the one hand, the present invention provides wire laying equipment for ring-frame composite material parts,

It includes a fixed frame, a turntable rotatably installed on the fixed frame, several ring frame moulds relatively fixed to the turntable, a wire laying mechanism relatively fixed to the fixed frame, and a local pressure mechanism relatively fixed to the fixed frame;

Wherein, the laying mechanism includes a 0-degree laying head for laying prepreg tapes in the same direction as the fiber distribution direction and the extension direction of the ring frame, and a plurality of non-fiber laying heads for laying prepreg tapes in different directions from the fiber distribution direction and the extending direction of the ring frame. 0 degree wire laying head.

The invention can realize the automatic stacking of multiple ring-frame composite material parts at one time, and greatly improves the molding quality and molding efficiency of the above-mentioned complex structure. In order to simplify the structure of the production line and reduce the difficulty of mechanism control, the basic configuration in which the mold rotates and reciprocates and the wire laying mechanism is fixed is adopted.

In some embodiments, the non-0-degree laying head includes a 90-degree laying head in which the fiber distribution direction is perpendicular to the extension direction of the ring frame, and a 45-degree laying head in which the fiber distribution direction and the extending direction of the loop frame form an included angle of 45° , and a -45 degree laying head with a -45 degree angle between the fiber distribution direction and the extension direction of the ring frame.

In some embodiments, the ring frame composite material article is a Z-shaped ring frame composite material article, and the 0-degree wire-laying head includes a vertical-face wire-laying head for vertical plane 0-degree lay-up, a horizontal plane The horizontal surface laying head for 0-degree layup, and the R-angle sub laying head for 0-degree laying in the R-angle area.

In some embodiments, the vertical surface laying head includes a sliding table connected with the fixed frame, a two-roller connecting frame slidably matched with the sliding table, and an upper vertical surface laying layer fixed on one of the two-pressing-roller connecting frames The pressing roller and the lower vertical surface laminating roller fixed on the other one of the two pressing roller connection frames, the upper vertical surface laminating roller and the lower vertical surface laminating roller are in one-to-one correspondence with the Z-shaped ring frame for compounding Two vertical faces of a material part.

In some embodiments, the horizontal sub-laying head comprises a horizontal laying head mounting plate connected with the fixed frame, the horizontal laying laying head mounting plate is configured with a horizontal laying head pressing roller connecting frame, and the horizontal laying head The press roller connection frame is equipped with a horizontal layer laying head press roller which is matched with the Z-shaped ring frame composite material product.

In some embodiments, the R-corner area sub-laying head includes an external angle press roller for the R-angle area's external angle surface layup, an internal angle press roller for the R-angle area's internal angle surface layup, and is installed on the fixing machine. The R angle area laying head mounting plate of the frame, and the R angle area laying head pressing roller connection frame arranged on the R angle area laying head mounting plate and used to install the male angle pressing roller and the female angle pressing roller .

In some embodiments, the non-zero-degree wire laying head includes a wire laying head mounting plate arranged on a fixed frame, and a wire laying head rotating connecting frame that can be installed on the wire laying head mounting plate according to different laying angles. The rotating connecting frame is provided with a prepreg tape drum, a release paper take-up reel for retracting the release paper, a clamping mechanism for realizing the clamping function of the prepreg tape, and a The prepreg tape is introduced into the guide groove of the clamping mechanism, the prepreg tape cutter is arranged between the guide groove and the clamping mechanism, and the compaction mechanism used to compact the prepreg tape on the surface of the ring frame mold.

In some embodiments, the clamping mechanism includes a guide post, a slide mounting platform slidably mounted on the guide post, and an elastic device for providing the slide mounting platform with an upward movement tendency, and the slide mounting platform is provided with a clamping auxiliary roller whose rotational axis position is relatively fixed, The sliding mounting table is provided with a guide rail portion that provides a rotating shaft movable section of the clamping auxiliary pressure roller with respect to the clamping auxiliary pressure roller which is movably arranged at the position of the rotating shaft.

In some embodiments, the compaction mechanism includes a bottom compact for compressing and securing the bottom prepreg tape and a compaction roller for compacting the prepreg tape against the surface of the ring frame mold.

In some embodiments, the non-0-degree laying head further includes a lateral expansion mechanism, and the lateral expansion mechanism includes a plurality of arc rollers arranged along the movement direction of the prepreg tape, and an arc roller that drives the rotation of each arc deformation roller. The drive device, each arc-shaped roller is an arc-shaped pair of rollers, and each arc-shaped single roller in the arc-shaped pair of rollers includes an inner arc-shaped frame and an outer flexible roller surface sleeved with the inner arc-shaped frame. The structure of the inner arc frame and the outer Multiple bearings are arranged between the flexible roller surfaces, and the arc of the multiple curved rollers increases gradually in the direction of movement of the prepreg tape.

In some embodiments, it also includes a length-measuring sensor configured on the prepreg tape drum for measuring the length of the prepreg tape,

It also includes a processor that is signally connected to the length-measuring sensor, the driving mechanism of the compaction mechanism, the driving mechanism of the clamping mechanism, the driving mechanism of the turntable, and the control mechanism of the prepreg tape cutter.

On the other hand, the working method of the wire laying equipment for ring-frame composite material parts provided by the application,

Including the 0-degree wire laying process, the non-0-degree wire laying process, and the steps of adjusting the position of the turntable;

Wherein, the non-0-degree silk laying process sequentially includes the steps of forming a cycle as follows:

Pre-feeding step of prepreg tape; prepreg tape drum, release paper recycling drum and length measuring sensor cooperate with pre-feeding prepreg tape of set length,

The prepreg tape clamping and cutting step; the bottom pressing block of the compaction mechanism compacts the end of the prepreg tape on the surface side of the ring frame mold, and the clamping auxiliary pressing roller and the clamping auxiliary roller are closely attached to realize the top of the prepreg tape clamping, the prepreg tape cutter completes the cutting of the prepreg tape,

The prepreg tape laying and compacting step; the compaction roller compacts the prepreg tape on the contour surface of the ring frame mold, and the bottom pressing block leaves the surface of the ring frame mold,

Repeat the prepreg tape pre-feeding steps;

The step of adjusting the position of the turntable; providing the function of circulating the frame mold in multiple stations, and or providing the position movement of the ring frame mold when the wire laying process is performed.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of a wire laying equipment for a ring-frame composite material product according to an embodiment provided by the present invention;

Figure 2 is a schematic structural diagram of a Z-shaped ring frame composite material product;

3 is a schematic structural diagram of an embodiment of a 0-degree wire laying head of a ring-frame composite material wire laying equipment provided by the present invention;

4 is a schematic structural diagram of an embodiment of an embodiment of a vertical face wire laying head of a 0-degree wire laying head of a ring-frame composite material wire laying equipment provided by the present invention;

5 is a schematic structural diagram of an embodiment of a horizontal plane sub-laying head of a 0-degree wire-laying head of a ring-frame composite material wire-laying equipment provided by the present invention;

6 is a schematic structural diagram of an embodiment of an embodiment of a wire laying head in the R angle area of a 0-degree wire laying head of a ring-frame composite material wire laying equipment provided by the present invention;

7 is a schematic structural diagram of an embodiment of a non-0-degree wire laying head of a ring-frame composite material wire laying equipment provided by the present invention;

FIG. 8 is a schematic structural diagram of an embodiment of a lateral widening mechanism of a non-0-degree wire laying head of an embodiment of a ring-frame composite material wire laying equipment provided by the present invention;

FIG. 9 is a layup flow chart of a non-0-degree layup of a wire laying equipment for a ring-frame composite material product provided by the present invention.

Detailed ways

As shown in Figure 1, the present invention provides wire laying equipment for ring-frame composite material products, including a fixed frame 7,

The turntable 1, which can be rotatably installed on the fixed frame 7,

Several ring frame molds 21,

The wire laying mechanism relatively fixed to the fixed frame 7, and

relative to the local pressing mechanism 6 fixed to the fixed frame 7;

Wherein, the laying mechanism includes a 0-degree laying head 2 with the fiber distribution direction in the same direction as the ring frame extending direction, and a plurality of non-0-degree laying heads whose fiber distribution direction is different from the extending direction of the ring frame.

The invention can realize the automatic stacking of multiple ring-frame composite material parts at one time, and greatly improves the molding quality and molding efficiency of the above-mentioned complex structure. In order to simplify the structure of the production line and reduce the difficulty of mechanism control, the basic configuration in which the mold rotates and reciprocates and the wire laying mechanism is fixed is adopted.

The turntable 1 is rotatably installed on the fixed frame 7; it is convenient for the ring frame die 21 arranged on the turntable 1 to rotate back and forth, laying a structural foundation for the compact configuration of the wire laying mechanism, the monitoring of wire laying quality, and the continuity of construction operations.

The turntable 1 is rotatably installed on the fixed frame 7; specifically, the fixed frame 1 should be equipped with an arc-shaped guide rail, and the turntable 1 is set with the arc-shaped guide rail;

The turntable 1 is equipped with a ring frame mold 21; specifically, the number of ring frame molds 21 that should be configured on the turntable 1 can be selected according to the arc size of the ring frame mold 21 and the working environment. In the embodiment of FIG. 1, the turntable 1 is equipped with three ring frame molds. 21. It can automatically stack 3 ring frames at one time.

The local pressing mechanism 6 is used for interlayer compaction of the prepreg tape. Specifically, the local pressing mechanism 6 includes multiple groups of rubber rollers and multiple cylinders for driving each rubber roller. The pressing pressure of a single roller should preferably be 100-500N .

The fiber distribution directions of the multiple non-0-degree laying heads are different from the extension direction of the ring frame, and the selection of the fiber distribution direction is configured according to the structural strength requirements of the ring frame composite material.

As an example, in the embodiment shown in FIG. 1 , the non-0-degree wire laying head includes

A 90-degree laying head with the fiber distribution direction perpendicular to the extension direction of the ring frame 3,

A 45-degree wire laying head 4 whose fiber distribution direction and the extension direction of the ring frame form an included angle of 45°, and

The fiber distribution direction and the extension direction of the ring frame form a -45° wire laying head 5 at an angle of -45°.

Specifically, for example, in the embodiment of FIG. 1, the 3 stations of the wire laying equipment for the ring-frame composite material are equipped with 0-degree wire laying head 2, 90-degree wire laying head 3, 45-degree wire laying head 4, and -45 degree laying head Wire head 5, local pressure mechanism 6.

Of course, if other angles or numbers of non-zero-degree wire laying heads are used, they should also belong to the protection scope of the present application.

Further, the Z-shaped ring frame composite material product is a typical ring frame composite material product, and its cross-sectional schematic diagram is shown in Figure 2, with two vertical planes, one horizontal plane and two R corner areas (one outside corner, one inner corner).

In order to improve the production efficiency of Z-ring frame composite parts, the present application also designs the following typical wire laying heads. And evenly distribute a plurality of groups in the whole ring production line, that is, it is possible to carry out automatic wire laying and forming of multiple Z-shaped composite material ring frames at the same time.

As shown in Figure 3, the 0-degree silk laying head includes a vertical surface silk laying head 2-1 for vertical plane 0-degree lay-up and a horizontal plane silk laying head 2 for horizontal plane 0-degree lay-up -2. The R angle area sub-laying head 2-3 is used for the 0 degree layup in the R angle area.

For the 0-degree layup (the layup along the length of the ring frame), the compaction of the prepreg tape in the R corner area cannot be completed by a single pressing roll due to the limitation of the deformability of the pressing roll. The 0-degree wire laying head 2 of the present application includes three sub-wire laying heads, and the three work together to complete the 0-degree laying of the Z-shaped ring frame.

The wire laying head 2-3 in the R corner area should be formed by laying prepreg tow (for example, the width is 6.35mm). There are in-plane bends and R-angle zones for 0 degree plies. In order to avoid fiber buckling caused by excessive in-plane bending deformation of the fibers in the prepreg tape, and also to ensure the compaction of the prepreg tape in the R angle area and avoid bridging, automatic laying should be adopted for this angle layer. Wire laying process.

The vertical face laying head 2-1 and the horizontal face laying head 2-2 can be formed by prepreg narrow tape (eg width 12.7-24.5mm). Improve molding efficiency.

The vertical surface laying head 2-1 should adopt the structure as shown in Figure 4, including the mounting plate 9 connected with the fixed frame 7, the two-roller connecting frame 10-1 matched with the mounting plate 9, The upper vertical surface of one of the roller connection frames 10-1 is laid with a lamination roller 2-1-1, and the lower vertical surface of the other one of the two pressure roller connection frames 10-1 is laid with a lamination roller 2-1- 2. The upper vertical surface lamination roller 2-1-1 and the lower vertical surface lamination roller 2-1-2 correspond to the two vertical surfaces of the Z-shaped ring frame composite material product in one-to-one correspondence.

Further, a mounting plate 7 - 1 is arranged between the mounting plates 9 connected to the fixed rack 7 .

The vertical plane 0-degree laying head press roller connection frame can be adjusted in the up and down direction within a certain range (moving stroke 10mm) to avoid the concentration of the splicing of adjacent tows in the thickness direction in the 0-degree lay-up.

As a further improvement of the adjustment in the up and down direction, the mounting plate 9 can be used to have a plurality of installation positions with different heights, and the pressure roller connecting frame 10-1 is installed in a certain installation position according to the technical requirements.

As another improvement of the vertical direction adjustment, one of the mounting plate 9 and the pressure roller connecting frame 10-1 is equipped with at least a slide rail that slides in the vertical direction, and one of the mounting plate 9 and the pressure roller connecting frame 10-1 is The sliding grooves matched with the sliding rails are arranged, and the mounting plate 9 or the pressure roller connecting frame 10-1 is equipped with a fastening nut, which is used to locate the mounting plate 9 and the pressure roller connecting frame 10-1 at the position required by the process.

The horizontal surface laying head 2-2 should adopt the structure shown in Figure 5, including the horizontal laying laying head mounting plate 7-2 connected to the fixed frame 7, and the horizontal laying laying laying head mounting plate 7-2 configuration The horizontal plane laying head pressing roller connection frame 10-2, the horizontal plane laying laying head pressing roll 2 is installed with the horizontal plane laying laying head pressing roll 2 matching the (horizontal plane) of the Z-shaped ring frame composite material product -2-1;

Similarly, in order to avoid the concentration of adjacent tow seams in the thickness direction of the layup layers with different 0 degrees on the horizontal plane, the position of the connecting frame 10-2 can be along the ring frame on the layup laying head mounting plate 7-2 on the horizontal plane. A certain range of adjustment is made in the diameter direction.

The connecting frame 10-2 is laid on the horizontal plane and the laying head mounting plate 7-2 can be adjusted in a certain range along the diameter direction of the ring frame mold, which can be similar to the multiple installation positions between the mounting plate 9 and the pressing roller connecting frame 10-1 or The implementation manner of the sliding rail sliding groove matching will not be repeated.

As shown in FIG. 6 , the sub-laying head 2-3 in the R-angle area includes an external-angle pressing roller 2-3-1 for the external-angle surface layup in the R-angle area, and a negative-angle press roller 2-3-1 for the internal-angle surface layup in the R-angle area. Angle pressing roller 2-3-2, installation plate 7-3 for laying wire laying head in R corner area installed on fixed frame 7, and laying wire laying head installation plate 7-3 in R corner zone and used to install external angle A connecting frame 10-3 of the wire laying head and pressing roller in the two R corners of the pressing roller 2-3-1 and the inner corner pressing roller 2-3-2.

In order to adapt to the laying of the ring frame with different R angles, the pressing roller used for the laying head in the R angle area can be dismantled. Further, the external angle press roller 2-3-1, the internal angle press roller 2-3-2 and the R angle area laying head press roller connection frame 10-3 are detachably arranged.

For Z-shaped ring frame composite materials with a turning diameter of about 2500-3000mm, 90 and ±45 degree layers should use common wide prepreg tapes such as 150mm/300mm to achieve wire laying for 90/±45 degree layers.

When using a prepreg tape with a certain width to lay the filaments from the inside to the outside, a gap will be formed between two adjacent prepreg tapes as the radius increases. In order to avoid the above-mentioned gap, the prepreg tape after peeling off the backing paper will pass through the deformation roller or gradually widen to compensate for the width change caused by the change of the radius, so as to achieve full layup.

Specifically, in the embodiment shown in FIG. 7 , the non-0-degree wire laying head includes a wire laying head mounting plate 7-4 arranged on the fixed frame 7, and can be installed on the wire laying head according to different laying angles. The wire laying head rotating connection frame 10-4 of the board 7-4,

The laying head rotating connection frame 10-4 is provided with a prepreg tape drum 11, a release paper take-up reel 13 for retracting the release paper, a clamping mechanism for realizing the clamping function of the prepreg tape, and a The guide groove 16 for introducing the prepreg tape after peeling the release paper into the clamping mechanism, the prepreg tape cutter 17 arranged between the guide groove 16 and the clamping mechanism, and the A compaction mechanism for compacting the material belt on the surface of the ring frame mold 21 .

Different laying angles only need to rotate the laying head rotary connecting frame 10-4 to the target angle.

The clamping mechanism includes a guide post, a sliding mounting table 18-3 slidably mounted on the guiding post, and an elastic device for providing the sliding mounting table 18-3 with an upward movement tendency,

The sliding mounting table 18-3 is equipped with an auxiliary clamping roller 18-1 whose position of the rotating shaft is relatively fixed, and an auxiliary clamping roller 18-2 which is movably arranged with the position of the rotating shaft,

The slide mounting table 18-3 is provided with a guide rail portion that provides a movable range of the rotation shaft of the pinching auxiliary pressing roller 18-2.

The auxiliary clamping roller 18-2 should be driven by an air cylinder. When the air cylinder is inflated, the auxiliary clamping roller 18-1 and the auxiliary clamping roller 18-2 are in close contact, and the prepreg tape after cutting is clamped. Tight, to achieve the clamping of the prepreg tape.

In order to ensure that there is always tension on the prepreg tape in the clamping section during layup, the sliding mounting table 18-3 installed on the clamping auxiliary roller 18-1 and the clamping auxiliary pressing roller 18-2 is under the action of the elastic device. (For example, the solution of using a guide post to set a pre-compressed spring) has a tendency to move upward, and a certain tension can be applied to the prepreg tape in the clamping section, and at the same time, the prepreg can be automatically adjusted with the continuous laying of the wire. The length of the gripping section of the tape.

The compaction mechanism includes a bottom pressing block 20-1 for pressing and fixing the bottom prepreg tape

and a compaction roll 20 - 2 for compacting the prepreg tape on the ring frame mold 21 .

The compaction rollers 20-2 can be moved along the contour of the ring frame mold, thereby compacting the prepreg tape against the mold surface.

Further, the bottom pressing block 20-1 and the compacting roller 20-2 should both be flexible rubber rollers.

Further, the compaction mechanism preferably further includes a bottom compactor driving cylinder for driving the bottom compactor 20-1, and a compaction roller driving cylinder for driving the compaction roller 20-2.

As shown in FIG. 8, the present invention provides a wire laying equipment for a ring-frame composite material. The non-0-degree wire laying head further includes a lateral widening mechanism, and the lateral widening mechanism is located along the movement direction of the prepreg tape. between compaction bodies.

It is used to gradually widen the cut unbacked prepreg tape laterally. When laying the wire, the prepreg tape is widened in advance according to the actual laying position, so as to compensate for the gap that increases with the radius. (The preferred case where the 90/±45 degree plies are laid from the inside to the outside along the diameter of the Z-ring frame).

Furthermore, the lateral widening mechanism includes a plurality of arc-shaped rollers 19-1 arranged along the moving direction of the prepreg tape, and an arc-shaped roller driving device 19-2 for driving the rotation of each arc-shaped deforming roller 19-1.

Under the action of tension, the unidirectional prepreg tape undergoes a certain lateral deformation after deformation, so as to realize the lateral expansion of the prepreg tape. The lateral widening mechanism can adjust the width of the prepreg tape online, so as to realize the 90/±45 degree layup, the required prepreg tape width change with the increase of the radius can be compensated, and the above complex structure can be greatly improved. the molding quality and molding efficiency.

Each arc-shaped roller 19-1 should be in the form of an arc-shaped pair of rollers, which has a good shaping effect.

Each arc-shaped single roller in the two-arc-shaped pair of rollers should adopt a structure in which an inner arc-shaped frame is sleeved with an outer flexible roller surface, and multiple bearings are arranged between the inner arc-shaped frame and the outer flexible roller surface.

The arc of the multi-pass curved roller 19-1 increases gradually in the direction of movement of the prepreg tape.

The prepreg tape is gradually widened by the multi-stage curved roller 19-1 under the action of a certain tension, so as to compensate for the gap that increases with the radius.

The wire laying equipment for the ring-frame composite material product provided by the present invention also includes

Length sensor 15 for measuring the length of the prepreg tape. The length measuring sensor 15 is arranged on the prepreg tape drum 11;

The wire laying equipment for the ring frame composite material product provided by the present invention also includes the control of the length measuring sensor 15, the driving mechanism of the compaction mechanism, the driving mechanism of the clamping mechanism, the driving mechanism of the turntable 1, and the prepreg tape cutter 17 Mechanisms are signal-connected to the processor 8.

The processor should use a variety of UMAC controllers, and the host computer realizes data storage and motion planning.

In the actual work process, according to the layup design requirements, the corresponding wire laying program is designed, and the working wire laying head is selected to complete the manufacture of the ring frame composite parts.

Further, the wire laying equipment for the ring-frame composite material product provided by the present invention also includes a wire laying quality detection mechanism that is signally connected to the processor 8 .

On the other hand, the present invention also provides a working method of the wire laying equipment for the ring-frame composite material, including a 0-degree wire laying process, a non-0-degree wire laying process, and a turntable position adjustment step;

Wherein, the non-0-degree silk laying process sequentially includes the steps of forming a cycle as follows:

The prepreg tape pre-feeding step; the prepreg tape drum 11, the release paper recovery drum 13 and the length-measuring sensor 15 cooperate with pre-feeding the prepreg tape of the set length,

The step of clamping and cutting the prepreg tape; the bottom pressing block 20-1 of the compaction mechanism compacts the end of the prepreg tape on the surface side of the ring frame mold 21, and clamps the auxiliary pressing roller 18-2 and the auxiliary roller 18 -1 The top end of the prepreg tape is clamped tightly, and the prepreg tape cutter 17 completes the cutting of the prepreg tape.

The prepreg tape laying and compacting step; the compacting roller 20-2 compresses the prepreg tape laying on the contour surface of the ring frame mold 21, and the bottom pressing block 20-1 leaves the surface of the ring frame mold 21,

Repeat the prepreg tape pre-feeding steps;

The step of adjusting the position of the turntable; providing the function of circulating the frame mold 21 in multiple stations, and or providing the position movement of the ring frame mold 21 when the wire laying process is performed.

Wherein, in the prepreg tape laying and compacting step, the compaction roller 20-2 compresses the prepreg tape laying on the contour surface of the ring frame mold 21, including, the compaction roller 20-2 lays the prepreg tape On the contour surface of the ring frame mold 21, the clamping mechanism continuously moves downward with the laying of the wire. When the prepreg tape clamping mechanism reaches the lower limit, the clamping mechanism abandons the clamping and resets, and the prepreg in the free section remains. The belt continues to be compacted on the contoured surface of the ring frame die 21 under the action of the compaction roller 20-2.

The clamping mechanism can abandon the clamping. In the case that the clamping auxiliary pressing roller 18-2 adopts a pneumatic mechanism, the air cylinder can be exhausted to realize the abandonment of the clamping.

In the embodiment with the stretching device, the laying process further comprises a lateral stretching step before the laying and compacting step of the prepreg tape;

According to the width of the prepreg tape required at different positions, select the working time of the prepreg tape lateral widening mechanism to widen the prepreg tape laterally;

In the wire laying method provided by the present invention, the 90 and ±45 degree layup adopts the automatic tape laying method, and the wide prepreg tape (eg 150mm) is laid by the processes of pre-cutting, transverse deformation and hot pressing wire laying.

When working, the turntable 1 makes a circular motion, and the sub-laying heads of the 0-degree lay-up work together to complete the 0-degree lay-up of the Z-shaped ring frame. Instead of the layup process of the 0-degree wire laying head, the lay-up process is shown in Figure 9.

In the thermal membrane forming process, when the existing flat laminate is deformed by the curvature change, the slip deformation between the prepreg tapes will occur, and the fibers will wrinkle. The forming process is also not ideal for the forming effect at the inner corner of the frame member such as the Z-shaped ring. In addition, this molding process is not suitable for thick-layer boards. The molding deformation molding process developed on the basis of the thermal diaphragm converts the vacuum negative pressure of the thermal diaphragm into mechanical pressure, which is suitable for the deformation of thick-layer boards. However, for the Z-ring frame, a member with hyperbolic characteristics, its cross-sectional dimension is changed. When the plate-deformation-attach process is used, it will inevitably cause accumulation of excess material and folds of fibers. The automatic forming equipment of the frame-shaped structure provided by the present application provides independent laying heads for each forming section, and combined with the overall operation process, the above-mentioned technical problems are well solved.

So far, the present embodiment has been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the present application.

It should be noted that, in the accompanying drawings or the text of the description, the implementations that are not shown or described are in the form known to those of ordinary skill in the technical field, and are not described in detail. In addition, the above definitions of various elements and methods are not limited to various specific structures, shapes or manners mentioned in the embodiments.

It should also be noted that demonstrations of parameters including specific values may be provided herein, but these parameters need not be exactly equal to the corresponding values, but may be approximated within acceptable error tolerances or design constraints. The directional terms mentioned in the examples, such as "up", "down", "front", "rear", "left", "right", etc., are only for referring to the directions of the drawings, and are not intended to limit the present application. protected range. Furthermore, unless the steps are specifically described or must occur sequentially, the order of the above steps is not limited to those listed above, and may be varied or rearranged according to the desired design. And the above embodiments can be mixed and matched with each other or with other embodiments based on the consideration of design and reliability, that is, the technical features in different embodiments can be freely combined to form more embodiments.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above are only specific embodiments of the present application, and are not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (12)

1. wire laying equipment for ring frame composite material parts, is characterized in that, Including fixed frame (7), The turntable (1), which is rotatably mounted on the fixed frame (7), a plurality of ring frame molds (21) for relatively fixing the turntable (1), a wire laying mechanism relatively fixed to the frame (7), and a local pressing mechanism (6) relatively fixed to the fixed frame (7); Wherein, the wire laying mechanism comprises a 0-degree wire laying head (2) with the fiber distribution direction in the same direction as the ring frame extending direction and a plurality of non-0-degree wire laying heads with different fiber distribution directions and the ring frame extending direction; The non-0-degree silk laying head includes a clamping mechanism for realizing the clamping function of the prepreg tape, a compaction mechanism for compacting the prepreg tape on the surface of the ring frame mould (21), and, The lateral widening mechanism is located between the clamping mechanism and the compacting mechanism along the movement direction of the prepreg tape. 2. a kind of ring frame composite material product wire laying equipment according to claim 1, is characterized in that; Non-0 degree wire laying head comprises A 90-degree laying head (3) in which the fiber distribution direction is perpendicular to the extension direction of the ring frame, a 45-degree laying head (4) whose fiber distribution direction forms an included angle of 45° with the extending direction of the ring frame, and The fiber distribution direction and the extension direction of the ring frame form a -45° wire laying head (5) at an included angle of -45°. 3. The automatic wire laying and forming equipment of the ring-frame composite material according to claim 1, wherein the ring-frame composite material part is a Z-shaped ring-frame composite material part, The 0-degree silk laying head includes a vertical surface silk laying head (2-1) for 0-degree lay-up on a vertical plane, and a horizontal-face laying head (2-2) for 0-degree lay-up on a horizontal plane. . The R-angle area sub-laying head (2-3) is used for the 0-degree lay-up in the R-angle area. 4. The wire laying equipment for ring frame composite material parts according to claim 3, is characterized in that, The vertical surface laying head (2-1) comprises a sliding table (9) connected with the fixed frame (7), a two-pressure roller connecting frame (10-1) slidingly matched with the sliding table (9), Laminating rollers (2-1-1) are laid on the upper vertical surface of one of the connecting frames of the pressing rollers (10-1), and a lower vertical surface that is fixed on the other of the connecting frames (10-1) of the two pressing rollers Lamination roller (2-1-2), the upper vertical surface lamination roller (2-1-1) and the lower vertical surface lamination roller (2-1-2) are in one-to-one correspondence with the Z-ring frame Two vertical faces of a composite part. 5. The wire laying equipment for ring frame composite material products according to claim 3, is characterized in that, the horizontal plane wire laying head (2-2) comprises The horizontal layer laying head mounting plate (7-2) connected with the fixed frame (7), The horizontal plane laying head mounting plate (7-2) is equipped with a horizontal plane laying head pressing roller connecting frame (10-2), and A horizontal laying head pressing roller (10-2) is installed with a horizontal laying laying pressing roller (2-2-1) which is matched with the Z-shaped ring frame composite material product. 6. The wire laying equipment for ring frame composite material parts according to claim 3, is characterized in that, The sub-laying head (2-3) in the R angle area includes an external angle pressing roller (2-3-1) for the external angle surface layup in the R angle area, and an internal angle pressing roller (2-3-1) for the external angle surface layup in the R angle area. Roller (2-3-2), Installed on the R corner area of the fixed frame (7), the laying head mounting plate (7-3), and It is arranged on the mounting plate (7-3) of the lay-up wire laying head in the R corner area and is used to install the wire laying in the two R corner areas of the male corner pressing roller (2-3-1) and the female corner pressing roller (2-3-2). Head pressure roller connection frame (10-3). 7. The wire laying equipment according to claim 1, wherein the non-0-degree wire laying head comprises a wire laying head mounting plate (7-4) arranged on the fixed frame (7), and The wire laying head rotating connecting frame (10-4) can be installed on the laying head mounting plate (7-4) according to different laying angles, The laying head rotating connecting frame (10-4) is provided with a prepreg tape drum (11), a release liner reel (13) for retracting the release liner, A guide groove (16) for guiding the prepreg tape after peeling off the release paper into the clamping mechanism, and A prepreg tape cutter (17) arranged between the guide groove (16) and the clamping mechanism. 8. wire laying equipment for ring frame composite material parts according to claim 7, is characterized in that, The clamping mechanism includes a guide post, a sliding installation table (18-3) slidably mounted on the guide post, and an elastic device for providing the sliding installation table (18-3) with an upward movement tendency, The sliding mounting table (18-3) is equipped with a clamping auxiliary roller (18-1) whose position of the rotating shaft is relatively fixed, and an auxiliary clamping roller (18-2) which is movably arranged with the position of the rotating shaft, The slide mounting table (18-3) is provided with a guide rail portion that provides a movable range of the rotation shaft for clamping the auxiliary pressing roller (18-2). 9. The wire laying equipment for ring frame composite material parts according to claim 8, is characterized in that, The compaction mechanism includes a bottom pressing block (20-1) for compacting and fixing the bottom prepreg tape, and A compaction roller (20-2) for compacting the prepreg tape on the surface of the ring frame mold (21). 10. The wire laying equipment for ring frame composite material parts according to claim 9, is characterized in that, The lateral widening mechanism comprises a plurality of arc-shaped rollers (19-1) arranged along the moving direction of the prepreg tape, and an arc-shaped roller driving device (19) for driving the rotation of each arc-shaped deformation roller (19-1). -2), each arc-shaped roller (19-1) is an arc-shaped pair of rollers, and each arc-shaped single roller in the arc-shaped pair of rollers includes an inner arc-shaped frame and an outer flexible roller surface sleeved with the inner arc-shaped frame. A plurality of bearings is arranged between the frame and the outer flexible roller surface, and the arc of the multi-arc roller (19-1) increases gradually in the direction of movement of the prepreg tape. 11. The wire laying equipment for ring frame composite material parts according to claim 10, is characterized in that, It also includes a length-measuring sensor (15) configured on the prepreg tape drum (11) for measuring the length of the prepreg tape, It also includes a processor that is signally connected to the length counting sensor (15), the driving mechanism of the compaction mechanism, the driving mechanism of the clamping mechanism, the driving mechanism of the turntable (1), and the control mechanism of the prepreg tape cutter (17). (8). 12. The working method of the wire-laying equipment for ring-frame composite material parts as claimed in claim 11, characterized in that, Including the 0-degree wire laying process, the non-0-degree wire laying process, and the steps of adjusting the position of the turntable; Wherein, the non-0-degree silk laying process sequentially includes the steps of forming a cycle as follows: The prepreg tape pre-feeding step; the prepreg tape drum (11), the release paper take-up reel (13) and the length-counting sensor (15) cooperate with pre-feeding the prepreg tape of the set length, The step of clamping and cutting the prepreg tape; the bottom pressing block (20-1) of the compaction mechanism compacts the end of the prepreg tape on the surface side of the ring frame mold (21), and clamps the auxiliary pressing roller (18-2) The top end of the prepreg tape is clamped tightly with the clamping auxiliary roller (18-1), and the prepreg tape cutter (17) completes the cutting of the prepreg tape. The prepreg tape laying and compacting step; the compacting roller (20-2) compresses the prepreg tape laying on the contour surface of the ring frame mold (21), and the bottom pressing block (20-1) leaves the ring frame mold (20-1). 21) Surface, Repeat the prepreg tape pre-feeding steps; The step of adjusting the position of the turntable; providing the function of circulating the frame mould (21) in multiple stations, and or providing the position movement of the frame mould (21) during the wire laying process.

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