Automatic directional cutting equipment for composite material belt

Abstract

The invention provides automatic directional cutting equipment for a composite material belt, and belongs to the field of manufacturing industry, the automatic directional cutting equipment comprises an automatic pressing mechanism and an automatic variable-angle cutting mechanism, and the automatic pressing mechanism is connected with the automatic variable-angle cutting mechanism. The automatic pressing mechanism comprises an installation pedestal, linear air cylinders, a lifting support and a bearing pedestal assembly, the linear air cylinders are symmetrically arranged at the left end and the right end of the lifting support, the linear air cylinders are arranged on the installation pedestal, and the bottom of the lifting support is connected with the bearing pedestal assembly. The problems that in the prior art, only fixed-angle cutting can be achieved, the cutting efficiency is low, and the cutting quality is low are solved. The technical effects that the composite material belt to be cut is cut in the specified angle direction within a certain variable angle range, and it is guaranteed that notches are neat are achieved.

Description

Technical Field

[0001] The invention relates to the field of manufacturing industry, and in particular to an automatic directional cutting device for composite material strips. Background Art

[0002] In the field of aerospace manufacturing, the automatic directional cutting technology of composite tapes can replace heavy manual labor and improve the efficiency and quality of cutting, especially in the manufacturing of large aerospace components.

[0003] A new type of automatic directional cutting mode is to cut the composite tape to be cut in a specified angle direction within a certain angle range. During the automatic laying process of the composite tape, when the laying task is about to end, the composite tape needs to be cut so that the cutting angle of the composite tape after cutting can match the edge angle of the workpiece. Because the edge angle of the actual workpiece is variable, the composite tape needs to have cuts at different angles. The function of the automatic directional cutting equipment is to cut the composite tape to be cut in a specified angle direction within a certain angle range. At present, there is little research on the automatic directional cutting equipment for composite tapes under this new cutting mode. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic directional cutting device for composite material strips, which solves the problems in the prior art that only fixed-angle cutting can be achieved, the cutting efficiency is low, and the cutting quality is low; it achieves the technical effect of cutting the composite material strip to be cut in a specified angle direction within a certain variable angle range, ensuring a neat incision.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A composite material strip automatic directional cutting device is characterized by comprising an automatic pressing mechanism and an automatic variable angle cutting mechanism, wherein the automatic pressing mechanism is connected to the automatic variable angle cutting mechanism.

[0007] The automatic clamping mechanism includes a mounting base, a linear cylinder, a lifting support and a bearing seat assembly. The linear cylinders are symmetrically arranged at the left and right ends of the lifting support. The linear cylinders are set on the mounting base, and the bottom of the lifting support is connected to the bearing seat assembly.

[0008] Furthermore, the mounting base includes a connecting base, an upper base, a lower base, a right support and a rear support, the upper base is arranged at the top of the mounting base, the lower base is arranged at the bottom of the mounting base, the connecting base, the rear support and the right support are respectively arranged on the sides of the mounting base in sequence, and the rear support is provided with a square hole for adapting the composite material belt to enter.

[0009] The linear cylinder includes a cylinder body and a cylinder piston rod, the cylinder piston rod moves up and down inside the cylinder body, the cylinder body is set on the upper base by bolts, the lower end of the cylinder piston rod is provided with a threaded hole, and the lower end of the cylinder piston rod is connected to the left and right ends of the lifting support by bolts.

[0010] Furthermore, the bearing seat assembly includes a flange bearing seat, a first bearing and a second bearing.

[0011] The first bearing is arranged at the upper end of the flange bearing seat, and the second bearing is arranged at the lower end of the flange bearing seat. The upper surface of the flange bearing seat is connected to the lower surface of the lifting support by bolts. A shoulder surface is opened inside the flange bearing seat, and the shoulder surface limits the position of the lower surface of the outer ring of the first bearing and the upper surface of the outer ring of the second bearing.

[0012] Furthermore, the automatic variable-angle cutting mechanism includes a steering servo part, a rotating shaft assembly, a cutting mechanism, a synchronous steering assembly and a zero position sensor assembly.

[0013] The bottom of the steering servo part is connected to the lifting support, the rotating shaft assembly is arranged at the bottom of the bearing seat assembly, the rotating shaft assembly is assembled with the bearing seat assembly, the cutting mechanism is arranged at the bottom of the rotating shaft assembly, the cutting mechanism is connected to the rotating shaft assembly, the synchronous steering assembly is arranged at the bottom of the cutting mechanism, the synchronous steering assembly is assembled with the cutting mechanism, the synchronous steering assembly is arranged on the lower base, the zero position sensor assembly is arranged at the bottom of the lower base, and the zero position sensor assembly is connected to the lower base and the synchronous steering assembly.

[0014] Furthermore, the steering servo part includes a steering servo, a first reducer and a key.

[0015] The steering servo is arranged at the top of the steering servo part, the first reducer is arranged at the lower part of the steering servo, a key slot is provided at the output shaft end of the first reducer, the key is arranged in the key slot at the output shaft end of the first reducer, the lower mounting surface of the steering servo is connected to the upper mounting surface of the first reducer by bolts, and the lower mounting surface of the first reducer is connected to the upper surface of the lifting support by bolts.

[0016] Furthermore, the rotating shaft assembly includes a rotating shaft, a first retaining spring, and a top screw.

[0017] A retaining ring groove is provided at the shaft end of the rotating shaft, and the first retaining ring is clamped in the retaining ring groove at the shaft end of the rotating shaft. A key groove is provided at the upper end of the rotating shaft, and the key cooperates with the key groove at the upper end of the rotating shaft. A threaded hole adapted to a top screw is provided at the shaft end of the rotating shaft, and the top screw is arranged in the threaded hole, and the top screw presses the output shaft end of the first reducer.

[0018] The rotating shaft is assembled with the first bearing and the second bearing, the shoulder of the rotating shaft defines the position of the lower surface of the inner ring of the second bearing, and the lower surface of the first retaining ring is fitted with the upper surface of the inner ring of the first bearing.

[0019] Furthermore, the cutting mechanism includes a cutting mechanism base plate, a first linear bearing, a second linear bearing, a presser foot, a linear guide rail, a linear slider, a screw, a block screw nut, a cutting blade fixing seat, a fastening bolt, a cutting blade, a cutting motor, a second reducer, a reducer mounting flange, a coupling, a first proximity switch, and a second proximity switch.

[0020] The cutting mechanism bottom plate is connected to the lower surface of the rotating shaft, the cutting mechanism bottom plate is fixedly connected to the presser foot, the linear guide is fixed to the cutting mechanism bottom plate, the linear slider is assembled on the linear guide, the linear slider can reciprocate on the linear guide, the upper surface of the block screw nut is connected to the lower surface of the linear slider by bolts, the lower surface of the block screw nut is connected to the upper surface of the cutting blade fixing seat by bolts, the screw is assembled with the block screw nut, a threaded hole adapted to the fastening bolt is provided on the cutting blade fixing seat, a U-shaped hole is provided on the cutting blade, the fastening bolt passes through the U-shaped hole on the cutting blade, and the cutting blade is installed on the cutting blade fixing seat, a long hole is provided at the bottom of the presser foot, the cutting blade is located in the long hole at the bottom of the presser foot, the tip of the cutting blade exceeds the lower surface of the presser foot by a length, and the length is greater than the thickness of the composite material belt.

[0021] The cutting motor is connected to the second reducer, and the second reducer can amplify the output torque of the cutting motor. The second reducer is connected to the reducer mounting flange, and the reducer mounting flange is connected to the cutting mechanism bottom plate. The output end of the second reducer is connected to the lead screw through a coupling. The first linear bearing and the second linear bearing are both mounted on the reducer mounting flange. The first proximity switch and the second proximity switch are both mounted on the cutting mechanism bottom plate. The first proximity switch and the second proximity switch respectively detect the two end limit positions of the block lead screw nut on the linear guide rail. When the first proximity switch detects the block lead screw nut, it is called the zero point position of the cutting blade.

[0022] Furthermore, the synchronous steering assembly includes a first synchronous guide rod, a second synchronous guide rod, a synchronous guide rod mounting plate, a synchronous turntable, a third bearing, and a second retaining spring.

[0023] One end of the first synchronous guide rod and the second synchronous guide rod are provided with an external thread, and two ends of the synchronous guide rod mounting plate are provided with threaded holes, and one end of the first synchronous guide rod and the second synchronous guide rod are fixedly arranged at the two ends of the synchronous guide rod mounting plate through the external thread, and the other ends of the first synchronous guide rod and the second synchronous guide rod are respectively matched with the first linear bearing and the second linear bearing at the lower surface of the synchronous guide rod mounting plate by bolts. The upper surface of the synchronous guide rod mounting plate is provided with a tool feeding groove, and the bottom is provided with an axis end. The axis end of the synchronous turntable is provided with a retaining ring groove, and the second retaining ring is embedded in the retaining ring groove of the axis end of the synchronous turntable. The axis end of the synchronous turntable is equipped with a third bearing, the upper surface of the inner ring of the third bearing contacts with the shaft shoulder opened at the axis end of the synchronous turntable, the lower surface of the inner ring of the third bearing contacts with the upper surface of the second retaining ring, the outer ring of the third bearing is embedded in the hole of the lower base, the upper surface of the outer ring of the third bearing contacts with the shoulder surface of the hole of the lower base, and the surface of the area where the disk body of the synchronous turntable contacts with the lower base is provided with a lubricating coating.

[0024] Furthermore, the zero position sensor assembly includes a baffle, a zero position sensor bracket, a zero position sensor, a first nut, and a second nut.

[0025] The zero position sensor bracket is in a right-angle shape, and the upper right-angle side of the zero position sensor bracket is fixed to the lower surface of the lower base by bolts. A hole is provided on the right right-angle side of the zero position sensor bracket for the zero position sensor to pass through. The zero position sensor itself is provided with an external thread on the column. The zero position sensor passes through the hole on the right right-angle side of the zero position sensor bracket. The first nut and the second nut clamp the zero position sensor on the zero position sensor bracket, and the baffle is fixed to the shaft end of the synchronous turntable by bolts.

[0026] Further, the baffle plate has a quarter gap, and the remaining three quarters of the baffle plate can be sensed by the zero position sensor, while the quarter gap of the baffle plate cannot be sensed by the zero position sensor.

[0027] Advantages of the present invention:

[0028] The present invention solves the problem that only fixed-angle cutting can be achieved in the prior art, the cutting efficiency is low, and the cutting quality is low; it achieves the technical effect of cutting the composite material strip to be cut in a specified angle direction within a certain variable angle range to ensure neat incisions; it has a compact and reliable structure, strong controllability, high precision, can improve production efficiency, and reduce labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2It is a schematic diagram of the assembly of the automatic pressing mechanism in the present invention;

[0031] Figure 3 It is a schematic diagram of the assembly of the mounting base in the present invention;

[0032] Figure 4 It is a schematic diagram of the assembly of the automatic variable angle cutting mechanism of the present invention;

[0033] Figure 5 It is a schematic diagram of the assembly of the cutting mechanism in the present invention;

[0034] Figure 6 It is a schematic diagram of the connection and assembly of the automatic pressing mechanism and the automatic variable angle cutting mechanism in the present invention;

[0035] Figure 7 It is a schematic diagram of the connection and assembly of the zero position sensor assembly, the lower base and the synchronous rotating disk in the present invention;

[0036] Figure 8 It is a schematic diagram of the state of the composite material strip automatic directional cutting device in the embodiment of the present invention when adjusting the cutting angle;

[0037] Fig. 9 It is a schematic diagram of the state of the automatic directional cutting device for composite material strips in the embodiment of the present invention when the cutting mechanism is pressing down and compacting the composite material strips and cutting;

[0038] Fig.10 It is a schematic diagram of the composite material strip automatic directional cutting device in the embodiment of the present invention in the final state after cutting;

[0039] In the figure: 1, automatic clamping mechanism, 1-1, mounting base, 1-1-1, connecting base, 1-1-2, upper base, 1-1-3, lower base; 1-1-4, right support; 1-1-5, rear support, 1-2, linear cylinder, 1-2-1, cylinder body, 1-2-2, cylinder piston rod, 1-3, lifting support, 1-4, bearing seat assembly, 1-4-1, flange bearing seat, 1-4-2, first bearing, 1-4-3, second bearing;

[0040] 2. Automatic variable angle cutting mechanism, 2-1. Steering servo part, 2-1-1. Steering servo, 2-1-2. First reducer, 2-1-3. Key, 2-2. Rotating shaft assembly, 2-2-1. Rotating shaft, 2-2-2. First retaining spring, 2-2-3. Top screw, 2-3. Cutting mechanism, 2-3-1. Cutting mechanism bottom plate, 2-3-2. First linear bearing, 2-3-3. Second linear bearing, 2-3-4. Presser foot, 2-3-5. Linear guide rail, 2-3-6. Linear slider, 2-3-7. Screw rod, 2-3-8. Block screw rod nut, 2-3-9. Cutting blade fixing seat, 2-3-10. Fastening bolt, 2-3-11. Cutting blade, 2-3-12, cutting motor, 2-3-13, second reducer, 2-3-14, reducer mounting flange, 2-3-15, coupling, 2-3-16, first proximity switch, 2-3-17, second proximity switch, 2-4, synchronous steering assembly, 2-4-1, first synchronous guide rod, 2-4-2, second synchronous guide rod, 2-4-3, synchronous guide rod mounting plate, 2-4-4, synchronous turntable, 2-4-5, third bearing, 2-4-6, second retaining spring, 2-5, zero position sensor assembly, 2-5-1, baffle, 2-5-2, zero position sensor bracket, 2-5-3, zero position sensor, 2-5-4, first nut, 2-5-5, second nut;

[0041] 3. Composite material belt. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0043] like Figure 1 As shown, an automatic directional cutting device for composite material strips comprises an automatic pressing mechanism 1 and an automatic variable angle cutting mechanism 2, wherein the automatic pressing mechanism 1 is connected to the automatic variable angle cutting mechanism 2.

[0044] like Figure 1 and Figure 2As shown, the automatic clamping mechanism 1 includes a mounting base 1-1, a linear cylinder 1-2, a lifting support 1-3 and a bearing seat assembly 1-4. The linear cylinders 1-2 are symmetrically arranged at the left and right ends of the lifting support 1-3. The linear cylinders 1-2 are set on the mounting base 1-1, and the bottom of the lifting support 1-3 is connected to the bearing seat assembly 1-4.

[0045] As a preferred embodiment of the present invention, Figure 3 As shown, the mounting base 1-1 includes a connecting base 1-1-1, an upper base 1-1-2, a lower base 1-1-3, a right support 1-1-4 and a rear support 1-1-5, the upper base 1-1-2 is arranged on the top of the mounting base 1-1, the lower base 1-1-3 is arranged on the bottom of the mounting base 1-1, the connecting base 1-1-1, the rear support 1-1-5 and the right support 1-1-4 are respectively and sequentially arranged on the sides of the mounting base 1-1, and the rear support 1-1-5 is provided with a square hole for adapting the composite material belt to enter; the connecting base 1-1-1 is connected to the space motion device to realize the posture change of the composite material belt automatic directional cutting equipment in space.

[0046] like Figure 1 and Figure 2 As shown, the linear cylinder 1-2 includes a cylinder body 1-2-1 and a cylinder piston rod 1-2-2. The cylinder piston rod 1-2-2 moves up and down inside the cylinder body 1-2-1. The cylinder body 1-2-1 is set on the upper base 1-1-2 by bolts. The lower end of the cylinder piston rod 1-2-2 is provided with a threaded hole. The lower end of the cylinder piston rod 1-2-2 is connected to the left and right ends of the lifting support 1-3 by bolts.

[0047] When the linear cylinder 1-2 is actuated, the cylinder piston rod 1-2-2 is pushed downward, and the cylinder piston rod 1-2-2 drives the lifting support 1-3 to move linearly downward, thereby driving the bearing seat assembly 1-4 to move linearly downward, and the center line of the bearing seat assembly 1-4 coincides with the center line of the hole of the lower base 1-1-3 to ensure concentricity.

[0048] As a preferred embodiment of the present invention, the bearing seat assembly 1-4 includes a flange bearing seat 1-4-1, a first bearing 1-4-2 and a second bearing 1-4-3.

[0049] The first bearing 1-4-2 is arranged at the upper end of the flange bearing seat 1-4-1, and the second bearing 1-4-3 is arranged at the lower end of the flange bearing seat 1-4-1. The upper surface of the flange bearing seat 1-4-1 is connected to the lower surface of the lifting support 1-3 by bolts. A shoulder surface is opened inside the flange bearing seat 1-4-1, and the shoulder surface limits the position of the lower surface of the outer ring of the first bearing 1-4-2 and the upper surface of the outer ring of the second bearing 1-4-3.

[0050] As a preferred embodiment of the present invention, Figure 1 and Figure 4 As shown, the automatic variable angle cutting mechanism 2 includes a steering servo part 2-1, a rotating shaft assembly 2-2, a cutting mechanism 2-3, a synchronous steering assembly 2-4 and a zero position sensor assembly 2-5.

[0051] The bottom of the steering servo part 2-1 is connected to the lifting support 1-3, the rotating shaft assembly 2-2 is arranged at the bottom of the bearing seat assembly 1-4, and the rotating shaft assembly 2-2 is assembled with the bearing seat assembly 1-4, the cutting mechanism 2-3 is arranged at the bottom of the rotating shaft assembly 2-2, and the cutting mechanism 2-3 is connected to the rotating shaft assembly 2-2, the synchronous steering assembly 2-4 is arranged at the bottom of the cutting mechanism 2-3, and the synchronous steering assembly 2-4 is assembled with the cutting mechanism 2-3, and the synchronous steering assembly 2-4 is arranged on the lower base 1-1-3, the zero position sensor assembly 2-5 is arranged at the bottom of the lower base 1-1-3, and the zero position sensor assembly 2-5 is connected to both the lower base 1-1-3 and the synchronous steering assembly 2-4.

[0052] As a preferred embodiment of the present invention, Figure 4 and Figure 6 As shown, the steering servo part 2-1 includes a steering servo 2-1-1, a first speed reducer 2-1-2 and a key 2-1-3.

[0053] The steering servo 2-1-1 is arranged at the top of the steering servo part 2-1, the first reducer 2-1-2 is arranged at the lower part of the steering servo 2-1-1, a key slot is provided at the output shaft end of the first reducer 2-1-2, the key 2-1-3 is arranged in the key slot at the output shaft end of the first reducer 2-1-2, the lower mounting surface of the steering servo 2-1-1 is connected to the upper mounting surface of the first reducer 2-1-2 by bolts, and the lower mounting surface of the first reducer 2-1-2 is connected to the upper surface of the lifting support 1-3 by bolts.

[0054] The power of the output shaft end of the steering servo 2-1-1 is transmitted to the output shaft end of the first reducer 2-1-2. After the action of the first reducer 2-1-2, the output torque of the steering servo 2-1-1 is amplified, which effectively improves the load capacity of the steering servo 2-1-1.

[0055] As a preferred embodiment of the present invention, the rotating shaft assembly 2-2 includes a rotating shaft 2-2-1, a first retaining spring 2-2-2, and a top screw 2-2-3.

[0056] A retaining ring groove is provided at the shaft end of the rotating shaft 2-2-1, and the first retaining ring 2-2-2 is clamped in the retaining ring groove at the shaft end of the rotating shaft 2-2-1. A key slot is provided at the upper end of the rotating shaft 2-2-1, and the key 2-1-3 cooperates with the key slot at the upper end of the rotating shaft 2-2-1 to realize the transmission of power from the output shaft end of the first reducer 2-1-2 to the rotating shaft 2-2-1. In order to prevent the key slot and the key from wearing for a long time and causing the clearance to increase, a threaded hole adapted to the top screw 2-2-3 is provided at the shaft end of the rotating shaft 2-2-1, and the top screw 2-2-3 is arranged in the threaded hole. The top screw 2-2-3 presses the output shaft end of the first reducer 2-1-2, thereby greatly enhancing the transmission accuracy of power transmitted from the output shaft end of the first reducer 2-1-2 to the rotating shaft 2-2-1.

[0057] The rotating shaft 2-2-1 is assembled with the first bearing 1-4-2 and the second bearing 1-4-3, and the shoulder of the rotating shaft 2-2-1 limits the position of the lower surface of the inner ring of the second bearing 1-4-3, and the lower surface of the first retaining spring 2-2-2 fits with the upper surface of the inner ring of the first bearing 1-4-2, so that the upper surface of the inner ring of the first bearing 1-4-2 is limited by the first retaining spring 2-2-2. When the rotating shaft 2-2-1 rotates in the first bearing 1-4-2 and the second bearing 1-4-3, there will be no up and down movement, and the upper end of the rotating shaft 2-2-1 receives power from the output shaft end of the first reducer 2-1-2.

[0058] As a preferred embodiment of the present invention, Figure 1 and Figure 5 As shown, the cutting mechanism 2-3 includes a cutting mechanism base plate 2-3-1, a first linear bearing 2-3-2, a second linear bearing 2-3-3, a presser foot 2-3-4, a linear guide 2-3-5, a linear slider 2-3-6, a screw 2-3-7, a block screw nut 2-3-8, a cutting blade fixing seat 2-3-9, a fastening bolt 2-3-10, a cutting blade 2-3-11, a cutting motor 2-3-12, a second reducer 2-3-13, a reducer mounting flange 2-3-14, a coupling 2-3-15, a first proximity switch 2-3-16, and a second proximity switch 2-3-17.

[0059] The cutting mechanism bottom plate 2-3-1 is connected to the lower surface of the rotating shaft 2-2-1, and the steering servo 2-1-1 transmits power to the output shaft end of the first reducer 2-1-2. The power of the output shaft end of the first reducer 2-1-2 is transmitted to the rotating shaft 2-2-1. The rotating shaft 2-2-1 rotates in the bearing seat assembly 1-4, and the rotating shaft 2-2-1 drives the cutting mechanism bottom plate 2-3-1 to rotate, thereby driving the cutting mechanism 2-3 to rotate, realizing the precise rotation of the cutting mechanism 2-3 controlled by the steering servo. When the lifting support 1-3 is pushed downward by the cylinder piston rod 1-2-2, the lifting support 1-3 drives the steering servo part 2-1, the bearing seat assembly 1-4, the rotating shaft assembly 2-2 and the cutting mechanism 2-3 to move downward.

[0060] The cutting mechanism base plate 2-3-1 is fixedly connected to the presser foot 2-3-4, the linear guide 2-3-5 is fixed on the cutting mechanism base plate 2-3-1, the linear slider 2-3-6 is assembled on the linear guide 2-3-5, and the linear slider 2-3-6 can reciprocate on the linear guide 2-3-5, the upper surface of the block lead screw nut 2-3-8 is connected to the lower surface of the linear slider 2-3-6 by bolts, the lower surface of the block lead screw nut 2-3-8 is connected to the upper surface of the cutting blade fixing seat 2-3-9 by bolts, the lead screw 2-3-7 is assembled with the block lead screw nut 2-3-8, so that the lead screw 2-3-7 drives the block lead screw nut 2-3-8 to reciprocate linearly along the linear guide 2-3-5. The cutting blade fixing seat 2-3-9 is provided with a threaded hole adapted to the fastening bolt 2-3-10, and the cutting blade 2-3-11 is provided with a U-shaped hole. The fastening bolt 2-3-10 passes through the U-shaped hole on the cutting blade 2-3-11, and the cutting blade 2-3-11 is installed on the cutting blade fixing seat 2-3-9. A long hole is provided at the bottom of the presser foot 2-3-4, and the cutting blade 2-3-11 is located in the long hole at the bottom of the presser foot 2-3-4. The tip of the cutting blade 2-3-11 exceeds the lower surface of the presser foot 2-3-4 by a length, and the length is greater than the thickness of the composite material belt, and then the screw rod 2-3-7 drives the cutting blade 2-3-11 to move back and forth along the linear guide rail 2-3-5, and the cutting blade 2-3-11 moves back and forth along the long hole at the bottom of the presser foot 2-3-4.

[0061] The cutting motor 2-3-12 is connected to the second reducer 2-3-13, and the second reducer 2-3-13 can amplify the output torque of the cutting motor 2-3-12. The second reducer 2-3-13 is connected to the reducer mounting flange 2-3-14, and the reducer mounting flange 2-3-14 is connected to the cutting mechanism base plate 2-3-1. The output end of the second reducer 2-3-13 is connected to the screw rod 2-3-7 through the coupling 2-3-15, so as to realize the transmission of the output power of the cutting motor 2-3-12 to the screw rod 2-3-7, and then realize the cutting motor 2-3-12 driving the cutting blade 2-3-11 to make reciprocating linear movements along the long hole at the bottom of the presser foot 2-3-4. The first linear bearing 2-3-2 and the second linear bearing 2-3-3 are both mounted on the reducer mounting flange 2-3-14, the first proximity switch 2-3-16 and the second proximity switch 2-3-17 are both mounted on the cutting mechanism base plate 2-3-1, the first proximity switch 2-3-16 and the second proximity switch 2-3-17 respectively detect the two end limit positions of the block lead screw nut 2-3-8 on the linear guide 2-3-5, and when the first proximity switch 2-3-16 detects the block lead screw nut 2-3-8, it is called the zero point position of the cutting blade.

[0062] As a preferred embodiment of the present invention, Figure 4 As shown, the synchronous steering assembly 2-4 includes a first synchronous guide rod 2-4-1, a second synchronous guide rod 2-4-2, a synchronous guide rod mounting plate 2-4-3, a synchronous turntable 2-4-4, a third bearing 2-4-5, and a second retaining spring 2-4-6.

[0063] One end of the first synchronous guide rod 2-4-1 and the second synchronous guide rod 2-4-2 is provided with an external thread, and both ends of the synchronous guide rod mounting plate 2-4-3 are provided with threaded holes. One end of the first synchronous guide rod 2-4-1 and the second synchronous guide rod 2-4-2 is fixedly arranged at both ends of the synchronous guide rod mounting plate 2-4-3 through external threads, and the other ends of the first synchronous guide rod 2-4-1 and the second synchronous guide rod 2-4-2 are respectively matched with the first linear bearing 2-3-2 and the second linear bearing 2-3-3, and the lower surface of the synchronous guide rod mounting plate 2-4-3 is connected with the upper surface of the synchronous rotating disk 2-4-4 by bolts. The upper surface of the synchronous rotating disk 2-4-4 is provided with a groove for cutting, and the bottom is provided with an axis end. The axis end of the synchronous rotating disk 2-4-4 is provided with a retaining ring groove, and the second retaining ring 2-4-6 is embedded in the retaining ring groove of the axis end of the synchronous rotating disk 2-4-4. The axis end of the synchronous rotating disk 2-4-4 is equipped with a third bearing 2-4-5, and the upper surface of the inner ring of the third bearing 2-4-5 contacts the shoulder of the axis end of the synchronous rotating disk 2-4-4, and the lower surface of the inner ring of the third bearing 2-4-5 contacts the upper surface of the second retaining ring 2-4-6, which ensures that the position of the third bearing 2-4-5 on the axis end of the synchronous rotating disk 2-4-4 is fixed. The outer ring of the third bearing 2-4-5 is embedded in the hole of the lower base 1-1-3, so that the synchronous rotating disk 2-4-4 can rotate around the hole of the lower base 1-1-3, and the rotation axis of the synchronous rotating disk 2-4-4 coincides with the rotation axis of the cutting mechanism 2-3. The upper surface of the outer ring of the third bearing 2-4-5 contacts the shoulder surface of the hole of the lower base 1-1-3, ensuring that the disk body of the synchronous turntable 2-4-4 is always in contact with the lower base 1-1-3. A lubricating coating is provided on the surface of the area where the disk body of the synchronous turntable 2-4-4 contacts the lower base 1-1-3, ensuring a good rotation effect of the synchronous turntable 2-4-4 on the lower base 1-1-3. When the synchronous turntable 2-4-4 rotates around the third bearing 2-4-5 on the lower base 1-1-3, the baffle 2-5-1 fixed on the shaft end of the synchronous turntable 2-4-4 rotates synchronously with the synchronous turntable 2-4-4.

[0064] When the steering servo 2-1-1 drives the cutting mechanism 2-3 to rotate, the first linear bearing 2-3-2 and the second linear bearing 2-3-3 of the cutting mechanism 2-3 drive the first synchronous guide rod 2-4-1 and the second synchronous guide rod 2-4-2 to rotate synchronously, thereby driving the synchronous turntable 2-4-4 to rotate synchronously, and when the cylinder piston rod 1-2-2 pushes downward, the first linear bearing 2-3-2 and the second linear bearing 2-3-3 on the cutting mechanism 2-3 move linearly downward along the first synchronous guide rod 2-4-1 and the second synchronous guide rod 2-4-2, so that the presser foot 2-3-4 of the cutting mechanism 2-3 is pressed tightly on the synchronous turntable 2-4-4.

[0065] As a preferred embodiment of the present invention, Figure 7 As shown, the zero position sensor assembly 2-5 includes a baffle 2-5-1, a zero position sensor bracket 2-5-2, a zero position sensor 2-5-3, a first nut 2-5-4, and a second nut 2-5-5.

[0066] The zero position sensor bracket 2-5-2 is in a right-angle shape, and the upper right-angle side of the zero position sensor bracket 2-5-2 is fixed to the lower surface of the lower base 1-1-3 by bolts. A hole is provided on the right right-angle side of the zero position sensor bracket 2-5-2 for the zero position sensor 2-5-3 to pass through. The zero position sensor 2-5-3 itself is provided with an external thread on the column. The zero position sensor 2-5-3 passes through the hole on the right right-angle side of the zero position sensor bracket 2-5-2. The first nut 2-5-4 and the second nut 2-5-5 clamp the zero position sensor 2-5-3 on the zero position sensor bracket 2-5-2, and the baffle 2-5-1 is fixed to the shaft end of the synchronous turntable 2-4-4 by bolts.

[0067] As a preferred embodiment of the present invention, Figure 4 and Figure 7 As shown, the baffle 2-5-1 has a quarter gap, the remaining three quarters of the baffle 2-5-1 can be sensed by the zero position sensor 2-5-3, and the quarter gap of the baffle 2-5-1 cannot be sensed by the zero position sensor 2-5-3.

[0068] Under normal circumstances, the zero position sensor 2-5-3 is aligned with the part of the baffle plate 2-5-1 with a quarter gap. At this time, the zero position sensor 2-5-3 has no signal. When the baffle plate 2-5-1 follows the synchronous turntable 2-4-4 to rotate synchronously, so that the remaining three quarters of the baffle plate 2-5-1 are aligned with the zero position sensor 2-5-3, the zero position sensor 2-5-3 has a signal. The process of the zero position sensor 2-5-3 changing from no signal to signal is called the zero return process of the cutting mechanism 2-3.

[0069] Working principle of the present invention:

[0070] First, the steering servo 2-1-1 is actuated to transmit power to the output shaft end of the first reducer 2-1-2, and then to the rotating shaft 2-2-1. The rotating shaft 2-2-1 rotates, driving the cutting mechanism 2-3 to rotate. The first linear bearing 2-3-2 and the second linear bearing 2-3-3 on the cutting mechanism 2-3 drive the first synchronous guide rod 2-4-1 and the second synchronous guide rod 2-4-2 to rotate synchronously, thereby driving the synchronous turntable 2-4-4 to rotate, and the baffle plate 2-5-1 follows the synchronous turntable 2-4-4 to rotate synchronously, so that the zero position sensor 2-5-3 changes from one-quarter of the gap of the baffle plate 2-5-1 to the remaining three-quarters of the position of the baffle plate 2-5-1, and the zero position sensor 2-5-3 changes from no signal to signal, realizing the function of rotating the cutting mechanism 2-3 back to zero position.

[0071] like Figure 8 As shown, the composite material belt 3 enters between the presser foot 2-3-4 and the synchronous turntable 2-4-4, the steering servo 2-1-1 drives the cutting mechanism 2-3 to rotate a certain angle, and the cutting motor 2-3-12 drives the lead screw 2-3-7 to move, thereby driving the block lead screw nut 2-3-8 to move in the direction of the first proximity switch 2-3-16. When the first proximity switch 2-3-16 detects the block lead screw nut 2-3-8, the cutting motor 2-3-12 stops moving, realizing the return to zero point function of the cutting blade 2-3-11.

[0072] like Fig. 9 As shown, the linear cylinder 1-2 then acts, and the cylinder piston rod 1-2-2 is pushed downward, thereby pushing the lifting support 1-3 to drive the cutting mechanism 2-3 to move downward, so that the presser foot 2-3-4 presses the composite material strip 3 onto the synchronous turntable 2-4-4, and then the cutting motor 2-3-12 drives the cutting blade 2-3-11 to move along the long hole at the bottom of the presser foot 2-3-4 toward the second proximity switch 2-3-17 to cut the composite material strip 3. When the second proximity switch 2-3-17 detects the block screw nut 2-3-8, the cutting motor 2-3-12 stops moving to complete the cutting of the composite material strip 3. Then the linear cylinder 1-2 acts, and the cylinder piston rod 1-2-2 is retracted upward, and the cutting mechanism 2-3 is lifted. The state of the composite material strip 3 cutting is completed as shown in FIG. Fig.10 shown.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art can still adjust the technical solutions described in the above embodiments or replace some of the technical features by equivalents. Therefore, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. An automatic directional cutting device for composite material strips, characterized in that: It comprises an automatic pressing mechanism (1) and an automatic variable angle cutting mechanism (2), wherein the automatic pressing mechanism (1) is connected to the automatic variable angle cutting mechanism (2); The automatic clamping mechanism (1) comprises a mounting base (1-1), a linear cylinder (1-2), a lifting support (1-3) and a bearing seat assembly (1-4); the linear cylinders (1-2) are symmetrically arranged at the left and right ends of the lifting support (1-3); the linear cylinders (1-2) are arranged on the mounting base (1-1); and the bottom of the lifting support (1-3) is connected to the bearing seat assembly (1-4).

2. The composite material strip automatic directional cutting device according to claim 1, characterized in that: The mounting base (1-1) comprises a connecting base (1-1-1), an upper base (1-1-2), a lower base (1-1-3), a right support (1-1-4) and a rear support (1-1-5); the upper base (1-1-2) is arranged at the top of the mounting base (1-1); the lower base (1-1-3) is arranged at the bottom of the mounting base (1-1); the connecting base (1-1-1), the rear support (1-1-5) and the right support (1-1-4) are arranged on the side of the mounting base (1-1) in sequence; and the rear support (1-1-5) is provided with a square hole adapted for the composite material belt to enter; The linear cylinder (1-2) comprises a cylinder body (1-2-1) and a cylinder piston rod (1-2-2); the cylinder piston rod (1-2-2) moves up and down inside the cylinder body (1-2-1); the cylinder body (1-2-1) is arranged on an upper base (1-1-2) by means of bolts; a threaded hole is arranged at the lower end of the cylinder piston rod (1-2-2); and the lower end of the cylinder piston rod (1-2-2) is connected to the left and right ends of a lifting support (1-3) by means of bolts.

3. The composite material strip automatic directional cutting device according to claim 2, characterized in that: The bearing seat assembly (1-4) comprises a flange bearing seat (1-4-1), a first bearing (1-4-2) and a second bearing (1-4-3); The first bearing (1-4-2) is arranged at the upper end of the flange bearing seat (1-4-1), and the second bearing (1-4-3) is arranged at the lower end of the flange bearing seat (1-4-1). The upper surface of the flange bearing seat (1-4-1) is connected to the lower surface of the lifting support (1-3) by bolts. A shoulder surface is provided inside the flange bearing seat (1-4-1), and the shoulder surface defines the position of the lower surface of the outer ring of the first bearing (1-4-2) and the upper surface of the outer ring of the second bearing (1-4-3).

4. The composite material strip automatic directional cutting device according to claim 3, characterized in that: The automatic variable angle cutting mechanism (2) comprises a steering servo part (2-1), a rotating shaft assembly (2-2), a cutting mechanism (2-3), a synchronous steering assembly (2-4) and a zero position sensor assembly (2-5); The bottom of the steering servo part (2-1) is connected to the lifting support (1-3); the rotating shaft assembly (2-2) is arranged at the bottom of the bearing seat assembly (1-4); the rotating shaft assembly (2-2) is assembled with the bearing seat assembly (1-4); the cutting mechanism (2-3) is arranged at the bottom of the rotating shaft assembly (2-2); the cutting mechanism (2-3) is connected to the rotating shaft assembly (2-2); the synchronous steering assembly (2-4) is arranged at the bottom of the cutting mechanism (2-3); the synchronous steering assembly (2-4) is assembled with the cutting mechanism (2-3); the synchronous steering assembly (2-4) is arranged on the lower base (1-1-3); the zero position sensor assembly (2-5) is arranged at the bottom of the lower base (1-1-3); the zero position sensor assembly (2-5) is connected to both the lower base (1-1-3) and the synchronous steering assembly (2-4).

5. The automatic directional cutting device for composite material strips according to claim 4, characterized in that: The steering servo part (2-1) comprises a steering servo (2-1-1), a first speed reducer (2-1-2) and a key (2-1-3); The steering servo (2-1-1) is arranged at the top of the steering servo part (2-1), the first reducer (2-1-2) is arranged at the bottom of the steering servo (2-1-1), a key slot is provided at the output shaft end of the first reducer (2-1-2), the key (2-1-3) is arranged in the key slot at the output shaft end of the first reducer (2-1-2), the lower mounting surface of the steering servo (2-1-1) is connected to the upper mounting surface of the first reducer (2-1-2) by bolts, and the lower mounting surface of the first reducer (2-1-2) is connected to the upper surface of the lifting support (1-3) by bolts.

6. The composite material strip automatic directional cutting device according to claim 5, characterized in that: The rotating shaft assembly (2-2) comprises a rotating shaft (2-2-1), a first retaining spring (2-2-2), and a top screw (2-2-3); A retaining ring groove is provided at the shaft end of the rotating shaft (2-2-1); the first retaining ring (2-2-2) is clamped in the retaining ring groove at the shaft end of the rotating shaft (2-2-1); a key groove is provided at the upper end of the rotating shaft (2-2-1); the key (2-1-3) cooperates with the key groove at the upper end of the rotating shaft (2-2-1); a threaded hole adapted to the top screw (2-2-3) is provided at the shaft end of the rotating shaft (2-2-1); the top screw (2-2-3) is arranged in the threaded hole; the top screw (2-2-3) presses against the output shaft end of the first reducer (2-1-2); The rotating shaft (2-2-1) is assembled with the first bearing (1-4-2) and the second bearing (1-4-3), the shaft shoulder of the rotating shaft (2-2-1) defines the position of the lower surface of the inner ring of the second bearing (1-4-3), and the lower surface of the first retaining ring (2-2-2) is in contact with the upper surface of the inner ring of the first bearing (1-4-2).

7. The composite material strip automatic directional cutting device according to claim 6, characterized in that: The cutting mechanism (2-3) comprises a cutting mechanism bottom plate (2-3-1), a first linear bearing (2-3-2), a second linear bearing (2-3-3), a presser foot (2-3-4), a linear guide rail (2-3-5), a linear slider (2-3-6), a lead screw (2-3-7), a block lead screw nut (2-3-8), a cutting blade fixing seat (2-3-9), a fastening bolt (2-3-10), a cutting blade (2-3-11), a cutting motor (2-3-12), a second reducer (2-3-13), a reducer mounting flange (2-3-14), a coupling (2-3-15), a first proximity switch (2-3-16), and a second proximity switch (2-3-17); The cutting mechanism bottom plate (2-3-1) is connected to the lower surface of the rotating shaft (2-2-1), the cutting mechanism bottom plate (2-3-1) is fixedly connected to the presser foot (2-3-4), the linear guide rail (2-3-5) is fixed to the cutting mechanism bottom plate (2-3-1), the linear slider (2-3-6) is assembled on the linear guide rail (2-3-5), the linear slider (2-3-6) can reciprocate on the linear guide rail (2-3-5), the upper surface of the block screw nut (2-3-8) is connected to the lower surface of the linear slider (2-3-6) by bolts, the lower surface of the block screw nut (2-3-8) is connected to the upper surface of the cutting blade fixing seat (2-3-9) by bolts, and the screw rod (2-3-8) is fixed to the cutting mechanism bottom plate (2-3-1). 3-7) is assembled with a block screw nut (2-3-8), a threaded hole adapted to the fastening bolt (2-3-10) is provided on the cutting blade fixing seat (2-3-9), a U-shaped hole is provided on the cutting blade (2-3-11), the fastening bolt (2-3-10) passes through the U-shaped hole on the cutting blade (2-3-11), and the cutting blade (2-3-11) is installed on the cutting blade fixing seat (2-3-9), a long hole is provided at the bottom of the presser foot (2-3-4), the cutting blade (2-3-11) is located in the long hole at the bottom of the presser foot (2-3-4), and the tip of the cutting blade (2-3-11) exceeds the lower surface of the presser foot (2-3-4) by a length, and the length is greater than the thickness of the composite material strip; The cutting motor (2-3-12) is connected to a second reducer (2-3-13), the second reducer (2-3-13) can amplify the output torque of the cutting motor (2-3-12), the second reducer (2-3-13) is connected to a reducer mounting flange (2-3-14), the reducer mounting flange (2-3-14) is connected to a cutting mechanism bottom plate (2-3-1), the output end of the second reducer (2-3-13) is connected to a screw rod (2-3-7) via a coupling (2-3-15), the first linear bearing (2-3-2) and the second linear bearing (2-3-13) are connected to the first linear bearing (2-3-2) and the second linear bearing (2-3-14) are connected to the first linear bearing (2-3-2) and the second linear bearing (2-3-15) are connected to the first linear bearing (2-3-2) and the second linear bearing (2-3-13 ... and the second linear bearing (2-3-13) are connected to the first linear bearing (2-3-2) and the second linear bearing (2-3-13) and the second linear bearing (2-3-13) and the second linear bearing (2-3-1 The two linear bearings (2-3-3) are both mounted on the reducer mounting flange (2-3-14); the first proximity switch (2-3-16) and the second proximity switch (2-3-17) are both mounted on the cutting mechanism bottom plate (2-3-1); the first proximity switch (2-3-16) and the second proximity switch (2-3-17) respectively detect the two end limit positions of the block screw nut (2-3-8) on the linear guide rail (2-3-5); when the first proximity switch (2-3-16) detects the block screw nut (2-3-8), it is called the zero point position of the cutting blade.

8. The composite material strip automatic directional cutting device according to claim 7, characterized in that: The synchronous steering assembly (2-4) comprises a first synchronous guide rod (2-4-1), a second synchronous guide rod (2-4-2), a synchronous guide rod mounting plate (2-4-3), a synchronous rotating disk (2-4-4), a third bearing (2-4-5), and a second retaining spring (2-4-6); One end of the first synchronous guide rod (2-4-1) and the second synchronous guide rod (2-4-2) is provided with an external thread, and both ends of the synchronous guide rod mounting plate (2-4-3) are provided with threaded holes. One end of the first synchronous guide rod (2-4-1) and the second synchronous guide rod (2-4-2) is fixedly arranged on the two ends of the synchronous guide rod mounting plate (2-4-3) through the external thread. The other ends of the first synchronous guide rod (2-4-1) and the second synchronous guide rod (2-4-2) are respectively matched with the first linear bearing (2-3-2) and the second linear bearing (2-3-3). The lower surface of the synchronous guide rod mounting plate (2-4-3) is connected with the upper surface of the synchronous rotating disk (2-4-4) by bolts. The upper surface of the synchronous rotating disk (2-4-4) is provided with a groove for feeding a tool, and the bottom is provided with an axis end. A retaining ring groove is provided on the shaft end of the disk (2-4-4), the second retaining ring (2-4-6) is embedded in the retaining ring groove of the shaft end of the synchronous rotating disk (2-4-4), and a third bearing (2-4-5) is assembled on the shaft end of the synchronous rotating disk (2-4-4), the upper surface of the inner ring of the third bearing (2-4-5) contacts the shaft shoulder provided on the shaft end of the synchronous rotating disk (2-4-4), the lower surface of the inner ring of the third bearing (2-4-5) contacts the upper surface of the second retaining ring (2-4-6), the outer ring of the third bearing (2-4-5) is embedded in the hole of the lower base (1-1-3), the upper surface of the outer ring of the third bearing (2-4-5) contacts the shoulder surface of the hole of the lower base (1-1-3), and a lubricating coating is provided on the surface of the area where the disk body of the synchronous rotating disk (2-4-4) contacts the lower base (1-1-3).

9. The composite material strip automatic directional cutting device according to claim 8, characterized in that: The zero position sensor assembly (2-5) comprises a baffle (2-5-1), a zero position sensor bracket (2-5-2), a zero position sensor (2-5-3), a first nut (2-5-4), and a second nut (2-5-5); The zero position sensor bracket (2-5-2) is in a right-angle shape, the upper right-angle side of the zero position sensor bracket (2-5-2) is fixed to the lower surface of the lower base (1-1-3) by bolts, the right right-angle side of the zero position sensor bracket (2-5-2) is provided with a hole for the zero position sensor (2-5-3) to pass through, the column of the zero position sensor (2-5-3) itself is provided with an external thread, the zero position sensor (2-5-3) passes through the hole of the right right-angle side of the zero position sensor bracket (2-5-2), the first nut (2-5-4) and the second nut (2-5-5) clamp the zero position sensor (2-5-3) on the zero position sensor bracket (2-5-2), and the baffle (2-5-1) is fixed to the shaft end of the synchronous rotating disk (2-4-4) by bolts.

10. The composite material strip automatic directional cutting device according to claim 9, characterized in that: The baffle plate (2-5-1) has a quarter gap, the remaining three quarters of the baffle plate (2-5-1) can be sensed by the zero position sensor (2-5-3), and the quarter gap of the baffle plate (2-5-1) cannot be sensed by the zero position sensor (2-5-3).

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