A creel quick-change device using a gun-changing disc in automatic yarn laying

Abstract

The present invention discloses a creel quick-changing device using a gun-changing disc in automatic silk laying, comprising a base support frame, a lower fixed seat, a lifting seat, a rotary support seat, a main side of a gun-changing disc, a fixed fixture, a creel and a tool side of a gun-changing disc; the lifting seat can be lifted and lowered, and can slide left and right, the rotary support seat is arranged on the lifting seat, the main side of the gun-changing disc is fixed on the rotary support seat, and the rotary support seat is driven to rotate by a motor; the fixed fixture is arranged on the top of the vertical stand, and the creel is connected to the tool side of the gun-changing disc through an adapter, the adapter is arranged on the top of the vertical stand and is clamped and limited by the fixed fixture; the present invention adopts two identical creels, and when one of the creels is working, the operator can fix the material roll of the other creel in advance and thread the silk. When the material roll of the first creel is used up, the robot is disengaged from it by the gun-changing disc and cooperates with the other creel, thereby omitting the time of stopping for material change and greatly improving the work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of automatic fiber placement, in particular to a creel quick-changing device using a gun-changing disc in automatic fiber placement. Background Art

[0002] Fiber-reinforced resin-based composite materials have been widely used in aerospace, wind turbine blades, automobile manufacturing and other fields due to their high specific strength, high specific modulus, fatigue resistance and corrosion resistance. Faced with complex and large-sized parts, manual placement can no longer meet the requirements of production efficiency and quality. The automatic fiber placement equipment uses industrial robots as moving parts, and cooperates with yarn racks and fiber placement heads to realize the manufacture of large curvature and complex special-shaped components. It has high placement efficiency, high material utilization and high degree of automation.

[0003] At present, the automatic fiber placement equipment generally has 8 or 16 tows, which can realize the placement of carbon fiber, glass fiber, dry fiber, and thermoplastic composite materials. Before placement, operators often need to do a lot of preparation work, including fixing the material roll and threading the wire. Ensure that the tow can smoothly pass through the clamping, re-feeding, and shearing mechanisms in the placement head and reach the pressure roller. When the material roll in the creel is used up, it is necessary to stop the machine to replace the material roll, and then repeat the above loading action. The whole process is relatively cumbersome. Especially for multi-tow placement equipment, it will cause a lot of time waste and fail to improve work efficiency.

[0004] In addition, some composite materials used in special occasions often need to be mixed with different types of fibers. For example, in some applications, long-term contact between carbon fiber laminates and metals will cause electrochemical corrosion on the contact surface, thus affecting the mechanical properties of the parts. Therefore, in the final stage of preparing such carbon fiber laminates, it is often necessary to lay a layer of glass fiber on the surface as an insulating layer. For automated placement equipment, the carbon fiber roll needs to be replaced with a glass fiber roll during the final placement, and then threading and other operations need to be performed, which adds additional time costs. Summary of the invention

[0005] The purpose of the present invention is to provide a creel quick-change device using a gun-changing disc in automatic silk laying to solve the problems existing in the above-mentioned prior art. Two identical creels are used. When one creel is working, the operator can fix the material roll on the other creel in advance and thread the silk. When the material roll of the first creel is used up, the robot is disengaged from it by changing the gun disc and cooperates with the other creel, thereby eliminating the time of stopping for material change and greatly improving the work efficiency.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a creel quick-changing device using a gun-changing disc in automatic wire laying, comprising a base support frame, a lower fixed seat, a lifting seat, a rotary support seat, a main side of the gun-changing disc, a fixing fixture, a creel and a tool side of the gun-changing disc;

[0008] A vertical stand is arranged on the base support frame, the lower fixed seat is arranged on one side of the bottom of the vertical stand, the lifting seat is fixed to the top of the lower fixed seat, the bottom of the lifting seat is slidably connected with the lower fixed seat through a slide, the top of the slide is provided with a lifting device for controlling the lifting of the lifting seat, the lifting seat is provided with the swivel support seat at one end facing the vertical stand, the main side of the gun changing plate is fixed on the swivel support seat, and the swivel support seat is driven to rotate by a motor;

[0009] The fixing fixture is arranged on the top of the vertical stand, the yarn rack is connected to the tool side of the gun changing disc through an adapter, and the adapter is arranged on the top of the vertical stand and is clamped and limited by the fixing fixture.

[0010] Preferably, a linear guide rail is respectively arranged on both sides of the top of the lower fixed seat, sliders cooperating with the linear guide rails are respectively arranged on both sides of the bottom of the slide plate, a linear bearing is respectively arranged at the four corners of the top of the slide plate, four guide shafts are correspondingly arranged at the four corners of the bottom of the lifting seat, and four waist-shaped holes are correspondingly arranged on the lower fixed seat, one end of the guide shaft is connected to the lifting seat, and the other end passes through the corresponding linear bearing and the waist-shaped hole in sequence and then extends downward; a waist-shaped hole is also arranged in the middle of the fixed seat, which is slidably connected to the bottom of the lifting device.

[0011] Preferably, a tightening wrench is also provided on the slide plate, and the tightening wrench is used to lock the lateral position of the slide plate.

[0012] Preferably, the lifting device is a worm gear lift or a lifting cylinder.

[0013] Preferably, the main side of the gun changing plate is connected to the swivel support seat via a transfer flange.

[0014] Preferably, the fixing clamp comprises a clamp base, a positioning pin shaft, a screw shaft, a side cover plate and a handwheel, the top of the clamp base is a boss protruding upward, and the top of the base is also provided with two waist-shaped grooves relatively to each other, part of the groove body of the waist-shaped groove is opened downward from the top end of the boss, and a positioning pin shaft is respectively inserted in the two waist-shaped grooves, and the positioning pin shaft can slide laterally along the waist-shaped groove, and a limiting shoulder is also provided in the waist-shaped groove to cooperate with the positioning pin shaft for axially limiting the positioning pin shaft; there are two handwheels, which are respectively arranged on both sides of the clamp base, and the inner sides of the two handwheels are connected with a screw shaft, and the threaded inner ends of the two screw shafts are respectively threadedly connected to the threaded holes laterally arranged on the two positioning pin shafts, and the side cover plate is arranged between the screw and the handwheel, and the side cover plate is fixed to the side wall of the boss.

[0015] Preferably, the top end surface of the boss between the two waist-shaped grooves is provided with an arc-shaped surface, and the adapter is provided with an annular groove matching the arc-shaped surface.

[0016] Preferably, the screw rod is connected to the hand wheel via a flat key.

[0017] Preferably, a plurality of material rolls are circumferentially arranged on the creel, and a wire placing head module is also arranged in the middle of the creel.

[0018] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0019] The invention provides a creel quick-changing device using a gun-changing disk in automatic silk laying. By adopting the gun-changing disk, when the material roll in one creel is used up, the other creel can be replaced without stopping the machine, thereby greatly improving the work efficiency; it can realize material replacement without stopping the machine, and different types of fiber bundles can be laid, thereby increasing the functional manufacturing of composite materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall assembly of the creel quick-changing device using the gun-changing disc in the automatic silk laying of the present invention;

[0022] Figure 2 A top view of the lower fixing seat of the present invention;

[0023] Figure 3It is a partial assembly schematic diagram of the lifting seat in the present invention;

[0024] Figure 4 It is a schematic diagram of the installation of the lifting seat and the main side of the gun changing plate in the present invention;

[0025] Figure 5 It is a schematic diagram of the creel clamping in the present invention;

[0026] Figure 6 It is a schematic diagram of the connection between the tool side of the gun changing disc and the creel in the present invention;

[0027] Figure 7 A top view of the limiting seat in the present invention;

[0028] Figure 8 A cross-sectional view of the cooperation between the positioning pin and the limiting seat in the present invention

[0029] Fig. 9 Schematic diagram of the assembly of the positioning pin and the limiting seat in the present invention

[0030] In the figure: 1 is a linear guide rail, 2 is a slider, 3 is a slide plate, 4 is a linear bearing, 5 is a set wrench, 6 is a lifting device, 7 is a lifting seat, 8 is a slewing support seat, 9 is a side cover, 10 is a positioning pin shaft, 11 is a base support frame, 12 is a lower fixed seat, 13 is a guide shaft, 14 is an adapter flange, 15 is the main side of the gun changing disk, 16 is a clamp base, 17 is a wire laying head module, 18 is a hand wheel, 19 is an adapter, 20 is a tool side of the gun changing disk, 21 is a material roll, 22 is a yarn rack, 23 is a screw, 24 is a waist-shaped hole one, 25 is a waist-shaped hole two, and 26 is a waist-shaped groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The object of the present invention is to provide a creel quick-changing device using a gun-changing disc in automatic silk laying to solve the problems existing in the prior art.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] The automatic silk laying in this embodiment adopts a creel quick replacement device for changing the gun disc, such as Figure 1As shown, it includes a base support frame 11, a lower fixed seat 12, a lifting seat 7, a rotary support seat 8, a main side 15 of the gun changing plate, a fixing fixture, a yarn rack 22 and a tool side 20 of the gun changing plate;

[0035] A vertical stand is arranged on the base support frame 11, a lower fixed seat 12 is arranged on one side of the bottom of the vertical stand, a lifting seat 7 is fixed to the top of the lower fixed seat 12, the bottom of the lifting seat 7 is slidably connected with the lower fixed seat 12 through a slide plate 3, a lifting device 6 for controlling the lifting of the lifting seat 7 is arranged on the top of the slide plate 3, a rotary support seat 8 is arranged at one end of the lifting seat 7 facing the vertical stand, a main side 15 of the gun changing plate is fixed on the rotary support seat 8, and the rotary support seat 8 is driven to rotate by a motor;

[0036] The fixing fixture is arranged at the top of the vertical stand, the yarn rack 22 is connected to the tool side 20 of the gun changing plate through the adapter 19, and the adapter 19 is arranged at the top of the vertical stand and is clamped and limited by the fixing fixture.

[0037] like Figure 2 , Figure 3 As shown, a linear guide 1 is respectively arranged on both sides of the top of the lower fixed seat 12, and the linear guide 1 is fixed to the lower fixed seat 12 by bolts. Slide blocks 2 cooperating with the linear guide 1 are arranged on both sides of the bottom of the slide plate 3, and the slide blocks 2 are fixed to the slide plate 3 by bolts. A linear bearing 4 is respectively fixed at the four corners of the top of the slide plate 3 by bolts, and four guide shafts 13 are correspondingly arranged at the four corners of the bottom of the lifting seat 7. Four waist-shaped holes 24 are correspondingly arranged on the lower fixed seat 12, one end of the guide shaft 13 is connected to the lifting seat 7, and the other end passes through the corresponding linear bearing 4 and waist-shaped hole 24 in sequence and then extends downward; a waist-shaped hole 25 slidably connected to the bottom of the lifting device 6 is also arranged in the middle of the fixed seat; a tightening wrench 5 is also arranged on the slide plate 3, and the tightening wrench 5 is used to lock the lateral position of the slide plate 3 (the tightening wrench 5 is connected to the screw 23 that passes through the slide plate 3 and the lower fixed seat 12, and the screw wrench is rotated to achieve tightening).

[0038] The lifting device 6 in this embodiment is preferably a worm gear lift or a lifting cylinder.

[0039] When the lifting device 6 is a worm gear lift, the lifting seat 7 can be lifted and lowered under the control of the motor of the worm gear lift, and the guide shaft 13 ensures the lifting accuracy of the lifting seat 7. The four guide shafts 13 and the bottom worm of the worm gear lift are slidably connected with the waist-shaped hole 1 24 and the waist-shaped hole 2 25. The lifting seat 7 can move forward and backward under the action of manpower, and when it moves to a specified position, the slide plate 3 can be locked by the tightening wrench 5.

[0040] like Figure 4As shown, the slewing support seat 8 is fixed on the lifting seat 7 by bolts. A transfer flange 14 is provided between the main side 15 of the gun changing plate and the slewing support seat 8, and both are fixed to each other by bolts.

[0041] like Figure 5-9 As shown, the fixing fixture includes a fixture base 16, a positioning pin shaft 10, a screw rod 23, a lateral cover plate 9 and a hand wheel 18. The top of the fixture base 16 is a boss protruding upward, and two waist-shaped grooves 26 are relatively arranged on the top of the base. Part of the waist-shaped groove 26 is opened downward from the top of the boss. A positioning pin shaft 10 is inserted into each of the two waist-shaped grooves 26. The positioning pin shaft 10 can slide laterally along the waist-shaped groove 26. The waist-shaped groove 26 is also provided with a positioning pin for cooperation. The limiting shoulder provided on the shaft 10 is used to limit the axial position of the positioning pin shaft 10; there are two hand wheels 18, which are respectively provided on both sides of the fixture base 16. The inner sides of the two hand wheels 18 are connected with a screw rod 23 through a flat key. The threaded inner ends of the two screw rods 23 are respectively threadedly connected with the two threaded holes transversely provided on the positioning pin shaft 10. The lateral cover plate 9 is provided between the screw rod 23 and the hand wheel 18, and the lateral cover plate 9 is fixed to the side wall of the boss by screws. The top surface of the boss between the two waist grooves 26 is provided with an arc surface, and the adapter 19 is provided with an annular groove matching the arc surface.

[0042] The diameter of the non-threaded side of the outer end of the screw 23 is smaller than the diameter of the threaded side of the outer surface of the inner end. Therefore, the screw 23 is restricted in the axial direction by its own shoulder, the left end face of the handwheel 18, and the lateral cover plate 9, and cannot move in the axial direction, but can only rotate around its own axis. When the adapter 19 is placed on the limiting seat, the handwheel 18 is turned, and the positioning pin 10 is driven to move toward the center through the relative movement of the thread pair. When the positioning pin 10 contacts the inner surface of the annular groove on the adapter 19, the positioning of the yarn frame 22 is achieved, and at the same time, the handwheel 18 continues to be turned to provide clamping force to prevent the yarn frame 22 from tipping over. Due to the self-locking function of the thread pair, the positioning pin 10 cannot retreat, so that the yarn frame 22 is reliably positioned.

[0043] The working process of the creel quick replacement device using the gun plate changer in the automatic silk laying of the present invention is as follows:

[0044] The tool side 20 of the gun changing plate is fixed to the adapter 19 of the yarn frame 22 by bolts, and the main side 15 of the gun changing plate is respectively installed at the end of the robot and the front end of the rotary support seat 8. Two cylindrical pins are provided on the limiting seat for positioning the yarn frame 22. A hand wheel 18 is installed on the side of the limiting seat. By turning the hand wheel 18, the positioning pin 10 moves radially to provide a positioning clamping function to prevent the yarn frame 22 from tipping over. The rotary support seat 8 is fixed on the lifting seat 7. The bottom of the lifting seat 7 is equipped with a worm gear lift and a linear guide 1, which can make the lifting seat 7 feed forward and backward and lift up and down. When the yarn frame 22 for replacement is clamped and tightened by the clamp, the lifting seat 7 rises to the specified position under the action of the motor, and then the lifting seat 7 is manually pushed forward and translated, so that the main side 15 of the gun changing plate fixed at the front end of the rotary support seat 8 is locked with the tool side, and finally the slide plate 3 is locked by the tightening wrench 5. The rotary support seat 8 can drive the yarn frame 22 to rotate in situ, which is convenient for operators to install and remove the material roll 21. When the yarn frame 22 needs to be replaced, the robot removes the used yarn frame 22, moves it to the top of the workbench, locks the yarn frame 22 again through the hand wheel 18, disengages the main side 15 of the gun change plate at the front end of the rotary support seat 8 from the tool side, and restores the lifting seat 7 to its original position, freeing up space for the robot to cooperate with the new yarn frame 22, so that the new yarn frame 22 can be put into use.

[0045] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A creel quick-change device using a gun-changing disc in automatic yarn laying, Features: It includes a base support frame, a lower fixed seat, a lifting seat, a rotary support seat, a main side of the gun changing plate, a fixing fixture, a yarn rack and a tool side of the gun changing plate; A vertical stand is arranged on the base support frame, the lower fixed seat is arranged on one side of the bottom of the vertical stand, the lifting seat is fixed to the top of the lower fixed seat, the bottom of the lifting seat is slidably connected with the lower fixed seat through a slide, the top of the slide is provided with a lifting device for controlling the lifting of the lifting seat, the lifting seat is provided with the swivel support seat at one end facing the vertical stand, the main side of the gun changing plate is fixed on the swivel support seat, and the swivel support seat is driven to rotate by a motor; The fixing fixture is arranged at the top of the vertical stand, the yarn rack is connected to the tool side of the gun changing plate through an adapter, and the adapter is arranged at the top of the vertical stand and is clamped and limited by the fixing fixture; A linear guide is respectively arranged on both sides of the top of the lower fixed seat, and sliding blocks cooperating with the linear guide are respectively arranged on both sides of the bottom of the slide plate, and a linear bearing is respectively arranged at the four corners of the top of the slide plate, and four guide shafts are correspondingly arranged at the four corners of the bottom of the lifting seat, and four waist-shaped holes are correspondingly arranged on the lower fixed seat, one end of the guide shaft is connected with the lifting seat, and the other end passes through the corresponding linear bearing and the waist-shaped hole one in sequence and then extends downward; a waist-shaped hole two is also arranged in the middle of the fixed seat, which is slidably connected to the bottom of the lifting device; the main side of the gun changing plate is connected to the slewing support seat through a transfer flange.

2. The creel quick-change device for the automatic yarn laying using a gun-changing disc according to claim 1, Features: The slide plate is also provided with a tightening wrench, and the tightening wrench is used to lock the lateral position of the slide plate.

3. The creel quick-change device for the automatic wire laying using a gun-changing disc according to claim 1, Features: The lifting device is a worm gear lift or a lifting cylinder.

4. The creel quick-change device for the automatic yarn laying using a gun-changing disc according to claim 1, Features: The fixing fixture comprises a fixture base, a positioning pin shaft, a screw, a side cover plate and a handwheel, the top of the fixture base is a boss protruding upward, and the top of the base is also provided with two waist-shaped grooves relatively, and part of the groove body of the waist-shaped groove is opened downward from the top end of the boss, and a positioning pin shaft is respectively inserted in the two waist-shaped grooves, and the positioning pin shaft can slide laterally along the waist-shaped groove, and a limiting shoulder is also provided in the waist-shaped groove to cooperate with the positioning pin shaft for axially limiting the positioning pin shaft; there are two handwheels, which are respectively arranged on both sides of the fixture base, and the inner sides of the two handwheels are connected with a screw shaft, and the threaded inner ends of the two screw shafts are respectively threadedly connected to the threaded holes laterally arranged on the two positioning pin shafts, and the side cover plate is arranged between the screw and the handwheel, and the side cover plate is fixed on the side wall of the boss.

5. The creel quick-change device using a gun-changing disc in the automatic wire laying according to claim 4, Features: The top end surface of the boss between the two waist-shaped grooves is provided with an arc surface, and the adapter is provided with an annular groove matching the arc surface.

6. The creel quick-change device for the automatic wire laying using a gun-changing disc according to claim 4, Features: The screw rod is connected to the hand wheel via a flat key.

7. The creel quick-change device using a gun-changing disc in the automatic wire laying according to claim 1, Features: A plurality of material rolls are arranged circumferentially on the creel, and a wire placing head module is also arranged in the middle of the creel.

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