Windshield wiper steel sheet punch forming machine

Abstract

The utility model belongs to the technical field of windshield wiper steel sheet forming, and particularly relates to a windshield wiper steel sheet punch forming machine which comprises a rack fixing plate seat, and a windshield wiper steel sheet forming machine is installed above the left end of the rack fixing plate seat. The windshield wiper steel sheet forming machine comprises a before-forming guide mechanism, a steel sheet driving mechanism, a windshield wiper steel sheet length metering monitoring mechanism, a steel sheet forming mechanism, a steel sheet stress relief auxiliary forming mechanism and an after-forming guide mechanism which are mounted on the assembly mounting plate. Closed-loop control feedback is formed through the meter counting wheel and the feeding mechanism, feeding is accurate, and the length phenomenon of each steel sheet is avoided. Grooves in the upper pressing wheel and the lower guide wheel are used for transition pressing, the positions of the windshield wiper steel sheets are relatively limited up and down and left and right, and lateral bending caused by deviation of the steel sheets is avoided. The upper and lower driving air cylinder pressure adjusting meter valves are adjusted to effectively ensure that the upper and lower feeding wheels are pressed tightly, and feeding is stable. The required radian of the windshield wiper steel sheet can be formed by controlling and adjusting the feeding speed and the downward pressing and ascending distance of the pressing wheel, and the consistency is good.

Description

Technical Field

[0001] This utility model belongs to the field of wiper blade steel sheet forming technology, specifically relating to a wiper blade steel sheet stamping forming machine. Background Technology

[0002] Wiper blades are curved and arc-shaped, with openings at both ends and in the middle, and several through holes in the middle section. During production, the curved arc shape requires a special forming process, the openings need to be made with specialized cutting and slitting equipment, and the punching needs to be done independently with punching equipment. In the current production process, the above processes are all carried out separately. After one process is completed, the product is transferred to another machine. This step-by-step processing method has low production efficiency, high labor intensity for workers, high labor costs, high equipment costs, and large space occupation of equipment.

[0003] Currently, the quality of wiper blade forming machines on the market varies greatly, and many have quality defects. The quality of the wipers produced cannot be guaranteed, and the products have the following defects.

[0004] 1. The wiper blade steel was not pressed and limited during the forming process, and there was no metering and monitoring of the steel blade. This resulted in inconsistent lengths of the formed steel blades. As a result, the welds at both ends of the assembled wiper blade steel were not fully welded. When the car is wiping at high speed, the blades are prone to falling off and falling apart, posing a huge safety hazard.

[0005] 2. During the forming and guiding process of the wiper blade steel sheet, the lack of a limiting and clamping anti-deviation mechanism results in the steel sheet being bent to the side. Consequently, the assembled wiper blade may not be able to clamp the rubber strip tightly, which can easily lead to the rubber strip falling off and causing missed wiping and loud wiping noise during the wiping process.

[0006] 3. The lack of control over the forming roller during the forming process and the absence of stress relief and auxiliary forming mechanisms after forming result in inconsistent curvature of the produced steel strips. This leads to twisting of the rubber strip after installation, or causes missed wiping, noise, and affects the service life of the rubber strip. Summary of the Invention

[0007] To address the problems mentioned in the background art, this utility model provides a wiper blade steel sheet stamping and forming machine. Through a closed-loop control feedback system formed by the metering wheel of the metering mechanism and the feeding mechanism, precise feeding is achieved, avoiding uneven lengths among the steel sheets. The grooves on the upper pressing wheel and the lower guide wheel provide transitional clamping, ensuring the wiper blade steel sheet is positioned relatively precisely in all directions, preventing misalignment and bending. Adjusting the piston pressure of the upper and lower drive cylinders via a pressure regulating valve effectively ensures tight clamping between the upper and lower feeding wheels, guaranteeing stable feeding. By controlling and adjusting the feeding speed and the downward and upward distances of the pressure rollers using PLC data, the desired curvature of the wiper blade steel sheet can be formed with good consistency.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a wiper steel sheet stamping and forming machine, including a frame fixing plate base, wherein a wiper steel sheet forming machine is installed on the upper left end of the frame fixing plate base, and the wiper steel sheet forming machine includes a pre-forming guide mechanism, a steel sheet driving mechanism, a wiper steel sheet length meter monitoring mechanism, a steel sheet forming mechanism, a steel sheet stress relief auxiliary forming mechanism, and a post-forming guide mechanism, all mounted on the assembly mounting plate.

[0009] As a preferred embodiment, the pre-forming guide mechanism includes a lower guide wheel, an upper clamping wheel, an adjustable clamping component for the clamping wheel, a base, and a fixed seat adjustment plate. The lower guide wheel is fixedly mounted on the base via a shaft center and has a groove of a width corresponding to the steel sheet to prevent the wiper blade from deviating. The upper clamping wheel is fixedly mounted on the adjustable clamping component for the clamping wheel via a shaft center. The adjustable clamping component for the clamping wheel is movably connected to the base via a sliding block that slides up and down. The adjustable clamping component for the clamping wheel has screw holes and is connected to the fixed seat adjustment plate via bolts. The fixed seat adjustment plate is fixedly mounted on the base, and the base is fixedly mounted on the assembly mounting plate.

[0010] As a preferred embodiment, the steel sheet driving mechanism includes a lower feed wheel seat, a lower feed wheel, a lower feed wheel shaft, a first spur gear, a coupling, a drive servo motor, a servo motor mounting base, an upper feed wheel, an upper feed wheel mounting shaft, a second spur gear, an upper feed wheel mounting base, an upper and lower drive floating joint, upper and lower drive cylinders, upper and lower drive cylinder mounting bases, and an upper and lower drive cylinder pressure regulating valve. The lower feed wheel seat is fixedly mounted on the assembly mounting plate, and the lower feed wheel is rolled on the lower feed wheel seat via the lower feed wheel shaft. The first spur gear is fixedly mounted on the lower feed wheel shaft, and the lower feed wheel shaft is connected to the drive servo motor via the coupling. The rotating shaft is fixedly connected; the drive servo motor is fixedly mounted on the assembly mounting plate via the servo motor mounting base; the upper feed wheel is rolled on the upper feed wheel mounting base via the upper feed wheel mounting shaft, a second spur gear is fixedly mounted on the upper feed wheel mounting shaft, the upper feed wheel mounting base is movably mounted on the assembly mounting plate via a linear slider, the upper feed wheel mounting base is fixedly mounted to the pneumatic end of the upper and lower drive cylinders via upper and lower drive floating joints, the upper and lower drive cylinders are fixedly mounted on the assembly mounting plate via upper and lower drive cylinder mounting bases, and the pressure regulating valve of the upper and lower drive cylinders is connected to the piston inlet and outlet interface of the upper and lower drive cylinders via an air pipe.

[0011] As a preferred embodiment, the wiper blade length counting mechanism includes a counting mechanism base, a lower grooved roller, an upper pressing roller, a counting wheel, a counting wheel mounting roller, a counting wheel mounting plate, and a counting wheel detection encoder. The counting mechanism base is fixedly mounted on the assembly mounting plate. There are two lower grooved rollers, one in the front and one in the back, which are fixedly mounted on the counting mechanism base via axles. There are also two upper pressing rollers, one in the front and one in the back, which are fixedly mounted on the counting mechanism base via axles. The lower grooved rollers and the upper pressing rollers cooperate to straighten and press down the wiper blade. The axis of the counting wheel is fixedly connected to the axis of the counting wheel detection encoder via the counting wheel mounting roller. The counting wheel detection encoder is fixedly mounted on the counting wheel mounting plate via a flange. The counting wheel mounting plate is movably mounted on the assembly mounting plate via a slide rail slider.

[0012] As a preferred embodiment, the steel sheet forming mechanism includes a forming base, forming base rollers, forming pressure rollers, a movable forming pressure roller seat, a forming pressure roller lead screw, a forming pressure roller lead screw seat, a second coupling, and a forming servo motor. The forming base is fixedly mounted on the assembly mounting plate, and the forming base rollers are fixedly mounted on the Y-shaped top of the forming base via bearings. The forming pressure rollers are fixedly mounted to the movable forming pressure roller seat via bearings. The lead screw nut of the forming pressure roller lead screw is mounted on the movable forming pressure roller seat. The movable forming pressure roller seat is mounted on the assembly mounting plate via a slider rail. The forming pressure roller lead screw seat is fixedly mounted on the assembly mounting plate via a fixed seat. One end of the second coupling is connected to the forming pressure roller lead screw, and the other end is connected to the rotating shaft of the forming servo motor. The forming servo motor is fixedly mounted on the assembly mounting plate via a fixed seat.

[0013] As a preferred embodiment, the steel sheet stress relief auxiliary forming mechanism includes a pressure roller, a pressure base, a drive screw, a drive screw fixing base, a third coupling, and a fourth servo motor. The pressure roller is mounted on the pressure base via bearings, the drive screw is movably mounted on the pressure base via a screw nut, the pressure base is mounted on the assembly mounting plate via a slide rail slider, the drive screw fixing base is fixedly mounted on the assembly mounting plate via a fixing base, and the drive screw is connected to the shaft of the fourth servo motor via the third coupling.

[0014] As a preferred embodiment, the post-forming guiding mechanism includes a guiding mechanism fixing seat, a lower guide wheel, and an upper guide wheel. The guiding mechanism fixing seat is fixedly mounted on the assembly mounting plate. The shaft of the lower guide wheel is fixedly mounted on the guiding mechanism fixing seat via a central shaft. The shaft of the upper guide wheel is fixedly mounted on the guiding mechanism fixing seat via a central shaft. The upper guide wheel presses against the upper surface of the wiper blade. The grooves on both sides of the lower guide wheel limit and hold the wiper blade in place. The inner groove circle of the lower guide wheel abuts against the lower surface of the wiper blade, forming vertical and horizontal limiting.

[0015] As a preferred embodiment, the frame fixing plate base is further equipped with a steel sheet middle notch stamping mechanism and mold, a steel sheet mounting hole stamping mechanism and mold, and a steel edge end shape stamping and cutting stamping mechanism and mold on the right side of the wiper steel sheet forming machine; the frame fixing plate base is covered with a frame cover, and a human-machine interface operating machine and a human-machine operation keyboard and mouse are provided on the frame cover; a viewing window is provided on the frame cover, and shock absorption and leveling feet are provided at the bottom of the frame cover.

[0016] The steel sheet notch stamping mechanism and the mold are movably mounted on the frame fixed plate seat via a slide rail slider. The steel sheet notch stamping mechanism and the mold are equipped with a first punch press servo drive motor. The first punch press servo drive motor drives the crankshaft connected to the punch press. The crankshaft drives the connecting rod. The connecting rod drives the upper mold of the mold to move up and down to perform the required notch stamping processing on the wiper steel sheet. The frame fixed plate seat is equipped with a first stamping drive mechanism for driving the steel sheet notch stamping mechanism and the mold to move left and right via a fixed flange.

[0017] The steel sheet mounting hole punching mechanism and die are equipped with a second punch press servo drive motor. The second punch press servo drive motor drives the punch press crankshaft, the crankshaft drives the connecting rod, and the connecting rod drives the upper die of the die to move up and down, performing the required notch punching processing on the wiper blade steel sheet. The steel sheet mounting hole punching mechanism and die are movably mounted on the frame fixed plate seat via a slide rail slider. The steel sheet mounting hole punching mechanism and die are movably mounted on the frame fixed plate seat via a lead screw and lead screw nut. A second punching drive mechanism for driving the steel sheet mounting hole punching mechanism and die to move left and right is mounted on the frame fixed plate seat via a fixed flange. The motor shaft of the second punching drive mechanism drives the lead screw to rotate via a synchronous belt, realizing the left and right movement of the steel sheet mounting hole punching mechanism and die, meeting the punching position requirements of different wiper blade steel sheet mounting holes.

[0018] The steel edge end shape stamping and cutting stamping mechanism and mold are equipped with a third stamping servo drive motor. The third stamping servo drive motor drives the stamping crankshaft, the crankshaft drives the connecting rod, and the connecting rod drives the upper mold to move up and down, performing stamping and cutting processing on the wiper blade steel sheet to achieve the required end shape. The steel edge end shape stamping and cutting stamping mechanism and mold are fixedly installed on the frame fixing plate base. By changing the mold, the stamping and cutting requirements of different wiper end shapes can be met.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This invention utilizes a measuring wheel that makes tangential contact with the wiper blade. When the wiper blade moves back and forth, it drives the measuring wheel to rotate. A roller mounted on the measuring wheel's axis drives the axis of the measuring wheel's encoder to rotate. The encoder collects the rotation distance to control the feeding speed of the servo motor and detect the output distance of the servo motor, preventing blade slippage. Data feedback from the measuring wheel and encoder allows for precise control of the distance the wiper blade travels, thus accurately determining the length of each blade. The measuring wheel and feeding mechanism form a closed-loop control feedback, ensuring precise feeding and preventing uneven lengths among the blades.

[0021] The lower guide wheel in the pre-forming guide mechanism features grooved limiting wheels at the front and rear. Additionally, the inner groove of the lower grooved wheel in the guide mechanism abuts against the lower surface of the wiper blade, creating vertical and horizontal limiting positions to prevent the blade from shifting and bending. The grooves on the upper pressing wheel and lower guide wheel are adjusted according to the thickness of the wiper blade to ensure the blade is positioned vertically and horizontally, preventing it from shifting and allowing only forward and backward sliding. This avoids blade misalignment and bending, effectively preventing defective products.

[0022] The upper and lower feeding wheels are pressed together by the pistons of the upper and lower driving cylinders, which drive the wiper blades forward to feed them. The piston pressure of the upper and lower driving cylinders can be adjusted by the pressure regulating valve to effectively ensure that the upper and lower feeding wheels are pressed together and to ensure stable feeding. The pressing force of the feeding wheels can be easily adjusted, the operation is simple, and the feeding stability is intuitively reflected.

[0023] During the stress relief and assisted forming of the steel sheet, the fourth servo motor drives the pressure base to slide up and down, thereby driving the pressure roller to move up and down. The wiper steel sheet drive mechanism continuously feeds the wiper steel sheet forward; the wiper steel sheet forming mechanism and the steel sheet stress relief and assisted forming mechanism move down and up synchronously; by controlling and adjusting the feeding speed and the downward and upward distance of the pressure roller through PLC data control, the required curvature of the wiper steel sheet can be formed with good consistency.

[0024] The products manufactured by this utility model have good consistency and improved product quality, solving some of the defects of current wiper blade steel sheets and greatly improving product quality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the internal structure of the entire machine of this utility model;

[0026] Figure 2 This is a schematic diagram of the molding mechanism in this utility model;

[0027] Figure 3 for Figure 2 A schematic diagram of the side view structure;

[0028] Figure 4 for Figure 2 Schematic diagram of the rear view structure;

[0029] Figure 5 for Figure 2 Schematic diagram of the guiding mechanism before and after molding;

[0030] Figure 6 for Figure 1 A top-view structural diagram;

[0031] Figure 7 for Figure 1 A schematic diagram of the side view structure;

[0032] Figure 8 This is a schematic diagram of the overall structure of this utility model.

[0033] Explanation of icon numbers:

[0034] 1. Lower guide wheel; 2. Upper clamping wheel; 3. Adjustable clamping component for the clamping wheel; 4. Base; 4-1. Adjustable mounting plate; 5. Assembly mounting plate;

[0035] 6. Lower feed wheel seat; 7. Lower feed wheel; 7-1. Lower feed wheel shaft; 7-2. Drive servo motor; 7-3. Coupling; 7-4. Drive servo motor; 7-5. Servo motor mounting base; 8. Upper feed wheel; 8-1. Upper feed wheel mounting shaft; 8-2. Second spur gear; 9. Upper feed wheel mounting base; 10. Upper and lower drive floating joint; 11. Upper and lower drive cylinder; 12. Upper and lower drive cylinder pressure regulating valve;

[0036] 13. Meter counting mechanism base; 14. Lower grooved roller; 15. Upper clamping roller; 16. Meter counting wheel; 17. Meter counting wheel mounting roller; 18. Meter counting wheel mounting plate; 19. Meter counting wheel detection encoder;

[0037] 20. Forming base; 21. Forming base roller; 22. Forming pressure roller; 23. Forming pressure roller movable seat; 24. Forming pressure roller lead screw; 25. Forming pressure roller lead screw seat; 26. Second coupling; 27. Forming servo motor;

[0038] 28. Pressure roller; 29. ​​Pressure base; 30. Drive screw; 31. Drive screw fixing seat; 32. Third coupling; 33. Fourth servo motor;

[0039] 34. Guide mechanism fixing seat; 35. Guide mechanism lower grooved wheel; 36. Guide mechanism upper pressure wheel;

[0040] 37. Steel sheet notch stamping mechanism and die; 37-1. First punch press servo drive motor; 37-2. First punching drive mechanism; 38. Steel sheet mounting hole stamping mechanism and die; 38-1. Second punch press servo drive motor; 38-2. Second punching drive mechanism; 39. Steel edge end shape stamping and cutting stamping mechanism and die; 39-1. Third punch press servo drive motor;

[0041] 40. Frame fixing plate; 50. Wiper blade steel sheet; 60. Wiper blade steel sheet forming machine. Detailed Implementation

[0042] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention. Example

[0043] Please see Figure 1-8 The present invention provides the following technical solution: a wiper steel sheet stamping and forming machine, including a frame fixing plate 40, a wiper steel sheet forming machine 60 installed on the upper left end of the frame fixing plate 40, the wiper steel sheet forming machine 60 including a pre-forming guide mechanism, a steel sheet driving mechanism, a wiper steel sheet length meter monitoring mechanism, a steel sheet forming mechanism, a steel sheet stress relief auxiliary forming mechanism and a post-forming guide mechanism installed on the assembly mounting plate 5.

[0044] In this embodiment, the pre-forming guide mechanism includes a lower guide wheel 1, an upper pressing wheel 2, an adjustable pressing member 3 for the pressing wheel, a base 4, and a fixed seat adjustment plate 4-1. The lower guide wheel 1 is fixedly mounted on the base 4 via a shaft center. The lower guide wheel 1 has a groove with a width corresponding to the steel sheet to prevent the wiper blade from deviating. The upper pressing wheel 2 is fixedly mounted on the adjustable pressing member 3 for the pressing wheel via a shaft center. The adjustable pressing member 3 is movably connected to the base 4 via a sliding block. The adjustable clamping component 3, equipped with screw holes, is connected to the fixed base adjustment plate 4-1 via bolts. The fixed base adjustment plate 4-1 is fixedly installed on the base 4, and the base 4 is fixedly installed on the assembly mounting plate 5. In use, the adjustable clamping component 3 drives the upper clamping wheel 2 on the adjustable clamping component 3 to move up and down. According to the thickness of the wiper blade, the upper clamping wheel 2 and the groove on the lower guide wheel 1 are adjusted to transition and clamp, so that the wiper blade is relatively limited in position in the up and down and left and right directions, and cannot move out of place, but can only slide forward and backward.

[0045] In this embodiment, the steel sheet driving mechanism includes a lower feeding wheel seat 6, a lower feeding wheel 7, a lower feeding wheel shaft 7-1, a first spur gear 7-2, a coupling 7-3, a drive servo motor 7-4, a servo motor mounting seat 7-5, an upper feeding wheel 8, an upper feeding wheel mounting shaft 8-1, a second spur gear 8-2, an upper feeding wheel mounting seat 9, an upper and lower drive floating joint 10, an upper and lower drive cylinder 11, an upper and lower drive cylinder mounting seat 11-1, and an upper and lower drive cylinder pressure regulating valve 12; the lower feeding wheel seat 6 is fixedly mounted on the assembly mounting plate 5, and the lower feeding wheel 7... The lower feed wheel 8 is rolled on the lower feed wheel seat 6 via the lower feed wheel shaft 7-1; a first spur gear 7-2 is fixedly mounted on the lower feed wheel shaft 7-1, and the lower feed wheel shaft 7-1 is fixedly connected to the shaft of the drive servo motor 7-4 via the coupling 7-3; the drive servo motor 7-4 is fixedly mounted on the assembly mounting plate 5 via the servo motor mounting seat 7-5; the upper feed wheel 8 is rolled on the upper feed wheel mounting seat 9 via the upper feed wheel mounting shaft 8-1, a second spur gear 8-2 is fixedly mounted on the upper feed wheel mounting shaft 8-1, and the upper feed wheel mounting seat 9 is connected to the assembly mounting plate 5 via a linear slider. The device is mounted on the assembly mounting plate 5. The upper feed wheel mounting seat 9 is fixedly mounted to the pneumatic end of the upper and lower drive cylinder 11 via the upper and lower drive floating joint 10. The upper and lower drive cylinder 11 is fixedly mounted on the assembly mounting plate 5 via the upper and lower drive cylinder mounting seat 11-1. The upper and lower drive cylinder pressure regulating valve 12 is connected to the piston inlet and outlet interface of the upper and lower drive cylinder 11 via an air pipe. In use, the upper and lower drive cylinder pressure regulating valve 12 can control the piston driving force of the upper and lower drive cylinder 11. The drive servo motor 7-4 drives the first spur gear 7-2, thereby driving the lower... The feeding wheel 7 rotates back and forth; the teeth of the first spur gear 7-2 mesh with the teeth of the second spur gear 8-2; the first spur gear 7-2 drives the second spur gear 8-2; the second spur gear 8-2 drives the upper feeding wheel 8 to rotate back and forth; the piston of the upper and lower driving cylinder 11 drives the upper feeding wheel 8 and the lower feeding wheel 7 to press the wiper blade together, and drives the wiper blade to feed forward, thus completing the feeding of the wiper blade; the piston pressure of the upper and lower driving cylinder 11 is adjusted by the pressure regulating valve 12 of the upper and lower driving cylinders to effectively ensure that the upper feeding wheel 8 and the lower feeding wheel 7 are pressed together, thus ensuring stable feeding.

[0046] In this embodiment, the wiper blade length counting mechanism includes a counting mechanism base 13, a lower grooved roller 14, an upper pressing roller 15, a counting wheel 16, a counting wheel mounting roller 17, a counting wheel mounting plate 18, and a counting wheel detection encoder 19. The counting mechanism base 13 is fixedly mounted on the assembly mounting plate 5. The lower grooved roller 14 has two sections, one in the front and one in the back, and is fixedly mounted on the counting mechanism base 13 via a wheel axle. The upper pressing roller 15 has two sections, one in the front and one in the back. 5. The wiper blade 50 is fixedly mounted on the base 13 of the measuring mechanism via a wheel axle. The lower grooved roller 14 cooperates with the upper pressing roller 15 to straighten and press down the wiper blade 50. The axis of the measuring wheel 16 is fixedly connected to the axis of the measuring wheel detection encoder 19 via the measuring wheel mounting roller 17. The measuring wheel detection encoder 19 is fixedly mounted on the measuring wheel mounting plate 18 via a flange. The measuring wheel mounting plate 18 is movably mounted on the assembly mounting plate 5 via a slide rail slider. When the wiper blade is measuring length, the measuring wheel mounting plate... Plate 18 can slide up and down. The meter-counting wheel mounting plate 18 is held by the assembly mounting plate 5 by a spring, ensuring that the meter-counting wheel 16 and the wiper blade have a certain pressure to increase the coefficient of friction and effectively prevent the meter-counting wheel 16 from slipping on the blade. The outer circle of the meter-counting wheel 16 is provided with an anti-slip outer wheel. The meter-counting wheel 16 is in tangential contact with the wiper blade. When the wiper blade moves back and forth, the wiper blade drives the meter-counting wheel 16 to rotate. The axis of the meter-counting wheel 16, the meter-counting wheel mounting roller 17, drives the axis of the meter-counting wheel detection encoder 19 to rotate. The meter-counting wheel detection encoder 19 collects the rotation distance to control the feeding speed of the drive servo motor 7-4 and detect the output of the drive servo motor 7-4, controlling the output distance of the drive servo motor 7-4 to prevent the blade from slipping. The drive servo motor 7-4 effectively controls the length of each wiper blade based on the data feedback from the meter-counting wheel detection encoder 19. Through the data feedback from the meter-counting wheel detection encoder 19, the distance the wiper blade travels can be accurately controlled, thus accurately controlling the length of each wiper blade.

[0047] In this embodiment, the steel sheet forming mechanism includes a forming base 20, forming base rollers 21, forming pressure rollers 22, forming pressure roller movable seat 23, forming pressure roller lead screw 24, forming pressure roller lead screw seat 25, a second coupling 26, and a forming servo motor 27. The forming base 20 is fixedly installed on the assembly mounting plate 5. The forming base rollers 21 are fixedly installed on the Y-shaped top of the forming base 20 via bearings. The forming pressure rollers 22 are fixedly installed to the forming pressure roller movable seat 23 via bearings. The lead screw nut of the forming pressure roller lead screw 24 is installed on the forming pressure roller movable seat 23. The forming pressure roller movable seat 23 is mounted on the assembly mounting plate 5 by sliding up and down via a slider rail. The forming pressure roller screw seat 25 is fixedly mounted on the assembly mounting plate 5 via a fixed seat. One end of the second coupling 26 is connected to the forming pressure roller screw 24, and the other end is connected to the rotating shaft of the forming servo motor 27. The forming servo motor 27 is fixedly mounted on the assembly mounting plate 5 via a fixed seat. During forming, the shaft of the forming servo motor 27 drives the second coupling 26 to drive the forming pressure roller screw 24 to rotate. The forming pressure roller movable seat 23 slides up and down, driving the forming pressure roller 22 to slide up and down. The forming pressure roller 22 is press-fitted against the upper surface of the wiper blade. The two forming base rollers 21 press down, pressing against the lower surface of the wiper blade. As the forming rollers 22 press deeper, the curvature of the wiper blade increases. The wiper blade drive mechanism continuously feeds the material. The forming servo motor 27 of this mechanism drives the forming rollers 22 to continuously press down and move backward, controlled by a program. This allows the wiper blade to form a curvature. Adjusting the curvature according to requirements achieves the desired wiper blade effect, ultimately ensuring the blade curvature matches the windshield curvature of various vehicle models. Adding a soft rubber strip completes the wiper blade. The curvature of the soft rubber strip is determined by the curvature of the blade; therefore, the quality of the blade curvature determines whether it can effectively wipe water and the overall quality of the wiper.

[0048] In this embodiment, the steel sheet stress relief auxiliary forming mechanism includes a pressure roller 28, a pressure base 29, a drive screw 30, a drive screw fixing seat 31, a third coupling 32, and a fourth servo motor 33. The pressure roller 28 is mounted on the pressure base 29 via bearings, and the drive screw 30 is movably mounted on the pressure base 29 via a screw nut. The pressure base 29 is mounted on the assembly mounting plate 5 via a slide rail slider. The drive screw fixing seat 31 is fixedly mounted on the assembly mounting plate 5 via a fixing seat. The drive screw 30 is connected to the rotating shaft of the fourth servo motor 33 via the third coupling 32. During steel sheet stress relief and auxiliary forming, the fourth servo motor 33 drives the third coupling 32 to rotate, and the third coupling 32 drives the drive screw 30 to rotate. The drive screw 30 drives the pressure base 29 to slide up and down via the screw nut. The pressure base 29 drives the pressure roller 28 to move up and down. The wiper blade drive mechanism continuously feeds the wiper blades forward; the wiper blade forming mechanism and the blade stress relief and auxiliary forming mechanism move downward and upward synchronously; by controlling and adjusting the feeding speed and downward pressure through PLC data, the required wiper blade curvature can be formed with good consistency.

[0049] In this embodiment, the post-forming guiding mechanism includes a guiding mechanism fixing seat 34, a lower guide wheel 35, and an upper guide wheel 36. The guiding mechanism fixing seat 34 is fixedly installed on the assembly mounting plate 5. The axis of the lower guide wheel 35 is fixedly installed on the guiding mechanism fixing seat 34 through a central shaft. The axis of the upper guide wheel 36 is fixedly installed on the guiding mechanism fixing seat 34 through a central shaft. During post-forming guiding, the upper guide wheel 36 presses against the upper surface of the wiper blade, and the grooves on both sides of the lower guide wheel 35 limit and hold the wiper blade. The inner groove circle of the lower guide wheel 35 abuts against the lower surface of the wiper blade, forming vertical and horizontal limiting to prevent the blade from deviating and bending. This effectively avoids the generation of defective products.

[0050] In this embodiment, the frame fixing plate base 40 is also equipped with a steel sheet middle notch stamping mechanism and mold 37, a steel sheet mounting hole stamping mechanism and mold 38, and a steel edge end shape stamping and cutting stamping mechanism and mold 39 on the right side of the wiper steel sheet forming machine 60; the frame fixing plate base 40 is covered with a frame cover 43, and a human-machine dialogue operation machine 41 and a human-machine operation keyboard and mouse 42 are provided on the frame cover 43; a viewing window is provided on the frame cover 43, and shock absorption and leveling feet are provided at the bottom of the frame cover 43.

[0051] The steel sheet notch stamping mechanism and the mold 37 are movably mounted on the frame fixing plate 40 via a slide rail slider. The steel sheet notch stamping mechanism and the mold 37 are equipped with a first punch press servo drive motor 37-1. The first punch press servo drive motor 37-1 drives the crankshaft connected to the punch press. The crankshaft drives the connecting rod. The connecting rod drives the upper mold to move up and down to perform the required notch stamping process on the wiper steel sheet. The frame fixing plate 40 is equipped with a first stamping drive mechanism 37-2 for driving the steel sheet notch stamping mechanism and the mold 37 to move left and right via a fixed flange.

[0052] The steel sheet mounting hole punching mechanism and mold 38 are equipped with a second punch press servo drive motor 38-1. The second punch press servo drive motor 38-1 drives the punch press crankshaft, the crankshaft drives the connecting rod, and the connecting rod drives the upper mold to move up and down, performing the required notch punching processing on the wiper steel sheet. The steel sheet mounting hole punching mechanism and mold 38 are movably mounted on the frame fixed plate base 40 via a slide rail slider. The steel sheet mounting hole punching mechanism and mold 38 are movably mounted on the frame fixed plate base 40 via a lead screw and lead screw nut. A second punching drive mechanism 38-2 for driving the steel sheet mounting hole punching mechanism and mold 38 to move left and right is mounted on the frame fixed plate base 40 via a fixed flange. The motor shaft of the second punching drive mechanism 38-2 drives the lead screw to rotate via a synchronous belt, realizing the left and right movement of the steel sheet mounting hole punching mechanism and mold 38 to meet the punching position requirements of different wiper steel sheet mounting holes.

[0053] The steel edge end shape stamping and cutting stamping mechanism and mold 39 are equipped with a third stamping servo drive motor 39-1. The third stamping servo drive motor 39-1 drives the stamping crankshaft, the crankshaft drives the connecting rod, and the connecting rod drives the upper mold of the mold to move up and down, so as to perform stamping and cutting processing on the wiper steel sheet to achieve the required end shape. The steel edge end shape stamping and cutting stamping mechanism and mold 39 are fixedly installed on the frame fixing plate base 40. By changing the mold, the stamping and cutting requirements of different wiper end shapes can be met.

[0054] The working principle and usage process of this utility model are as follows: When using this utility model, the operator puts the wiper blade into the pre-forming guide mechanism on the wiper blade forming machine 60. The upper pressing wheel 2 on the adjustable pressing wheel 3 moves up and down, and the grooves on the upper pressing wheel 2 and the lower guide wheel 1 are adjusted according to the thickness of the wiper blade to make the wiper blade relatively limited in position in the up and down and left and right directions. It cannot move out of position and can only slide forward and backward.

[0055] During feeding, the pressure regulating valve 12 of the upper and lower drive cylinders controls the piston driving force of the upper and lower drive cylinders 11; the drive servo motor 7-4 drives the first spur gear 7-2, thereby driving the lower feed wheel 7 to rotate back and forth; the teeth of the first spur gear 7-2 mesh with the teeth of the second spur gear 8-2; the first spur gear 7-2 drives the second spur gear 8-2; the second spur gear 8-2 drives the upper feed wheel 8 to rotate back and forth; the piston of the upper and lower drive cylinders 11 drives the upper feed wheel 8 and the lower feed wheel 7 to press the wiper blade together, driving the wiper blade to feed forward, thus completing the feeding of the wiper blade; the piston pressure of the upper and lower drive cylinders 11 is adjusted by the pressure regulating valve 12 to effectively ensure that the upper feed wheel 8 and the lower feed wheel 7 are pressed together, ensuring stable feeding.

[0056] During the length monitoring of the wiper blade, the measuring wheel mounting plate 18 can slide up and down. The measuring wheel mounting plate 18 is held in place by a spring and the assembly mounting plate 5, ensuring that the measuring wheel 16 and the wiper blade have sufficient pressure to increase the coefficient of friction and effectively prevent slippage. The measuring wheel 16 has an anti-slip outer wheel on its outer circumference. The measuring wheel 16 is in tangential contact with the wiper blade. When the wiper blade moves back and forth, it drives the measuring wheel 16 to rotate. The measuring wheel mounting roller 17 at the axis of the measuring wheel 16 drives the measuring wheel to detect the distance. The encoder 19 rotates, and the meter wheel detects the rotation distance collected by the encoder 19 to control the feeding speed of the drive servo motor 7-4 and detect the output of the drive servo motor 7-4. This controls the output distance of the drive servo motor 7-4 to prevent the steel blades from slipping. Based on the data feedback from the meter wheel detects the encoder 19, the drive servo motor 7-4 effectively controls the length of each wiper blade. Through the data feedback from the meter wheel detects the encoder 19, the distance the wiper blade travels in meters can be precisely controlled, thus accurately determining the length of each wiper blade.

[0057] During the forming process, the shaft of the forming servo motor 27 drives the second coupling 26, which in turn drives the forming pressure roller screw 24 to rotate. The forming pressure roller movable seat 23 slides up and down, driving the forming pressure roller 22 to slide up and down. The forming pressure roller 22 is pressed down against the upper surface of the wiper blade with interference force. The two forming base rollers 21 press against the lower surface of the wiper blade. As the forming pressure roller 22 presses deeper and deeper, the curvature of the wiper blade becomes larger and larger. The wiper blade drive mechanism continuously feeds the material. The forming servo motor 27 of this mechanism drives the forming pressure roller 22 to continuously press down and continuously move backward. Through mutual control by the program, the wiper blade can be formed into a curvature. The curvature can be adjusted according to the requirements to achieve the effect of making wiper blades. Finally, the curvature of the blade can be matched to the curvature of the windshield of various car models. After installing the soft rubber strip, the wiper blade is formed. The curvature of the soft rubber strip is determined by the curvature of the blade; therefore, the quality of the blade curvature determines whether it can wipe water cleanly and determines the quality of the wiper.

[0058] During the stress relief and assisted forming of the steel sheet, the fourth servo motor 33 drives the 32 to rotate, and the third coupling 32 drives the drive screw 30 to rotate; the drive screw 30 drives the pressure seat 29 to slide up and down through the screw nut; the pressure seat 29 drives the pressure roller 28 to move up and down. The wiper steel sheet drive mechanism continuously feeds the wiper steel sheet forward; the wiper steel sheet forming mechanism and the steel sheet stress relief and assisted forming mechanism move down and up synchronously; by controlling and adjusting the feeding speed and downward pressure through the data from the PLC controller outside the forming machine, the required arc of the wiper steel sheet can be formed with good consistency.

[0059] During the guiding process after molding, the upper pressure roller 36 of the guiding mechanism presses down on the upper surface of the wiper blade, and the grooves on both sides of the lower grooved roller 35 of the guiding mechanism limit and hold the wiper blade. The inner groove circle of the lower grooved roller 35 of the guiding mechanism abuts against the lower surface of the wiper blade, forming upper, lower, left and right limits; to prevent the blade from running off-center and causing the wiper blade to bend; effectively avoiding the generation of defective products.

[0060] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A windshield wiper steel sheet stamping and forming machine, comprising a frame fixing plate base (40), characterized in that: A wiper steel sheet forming machine (60) is installed above the left end of the frame fixing plate seat (40). The wiper steel sheet forming machine (60) includes a pre-forming guide mechanism, a steel sheet driving mechanism, a wiper steel sheet length meter monitoring mechanism, a steel sheet forming mechanism, a steel sheet stress relief auxiliary forming mechanism, and a post-forming guide mechanism, all mounted on the assembly mounting plate (5).

2. The wiper blade steel sheet stamping and forming machine according to claim 1, characterized in that: The pre-forming guide mechanism includes a lower guide wheel (1), an upper clamping wheel (2), an adjustable clamping component (3) for the clamping wheel, a base (4), and a fixed seat adjustment plate (4-1). The lower guide wheel (1) is fixedly mounted on the base (4) through the center of the shaft. The lower guide wheel (1) has a groove with a width corresponding to the steel sheet to prevent the wiper blade from running off-center. The upper clamping wheel (2) is fixedly mounted on the adjustable clamping component (3) for the clamping wheel through the center of the shaft. The adjustable clamping component (3) for the clamping wheel is movably connected to the base (4) through a sliding block that slides up and down. The adjustable clamping component (3) for the clamping wheel has screw holes. The adjustable clamping component (3) for the clamping wheel is connected to the fixed seat adjustment plate (4-1) through bolts. The fixed seat adjustment plate (4-1) is fixedly mounted on the base (4). The base (4) is fixedly mounted on the assembly mounting plate (5).

3. The wiper blade steel sheet stamping and forming machine according to claim 1, characterized in that: The steel sheet drive mechanism includes a lower feed wheel seat (6), a lower feed wheel (7), a lower feed wheel shaft (7-1), a first spur gear (7-2), a coupling (7-3), a drive servo motor (7-4), a servo motor mounting seat (7-5), an upper feed wheel (8), an upper feed wheel mounting shaft (8-1), a second spur gear (8-2), an upper feed wheel mounting seat (9), an upper and lower drive floating joint (10), an upper and lower drive cylinder (11), an upper and lower drive cylinder mounting seat (11-1), and an upper and lower drive cylinder pressure regulating valve (12). The lower feed wheel seat (6) is fixedly mounted on the assembly mounting plate (5), and the lower feed wheel (7) is rolled on the lower feed wheel seat (6) via the lower feed wheel shaft (7-1). The first spur gear (7-2) is fixedly mounted on the lower feed wheel shaft (7-1), and the lower feed wheel shaft (7-1) is connected to the lower feed wheel seat (6) via the coupling (7-2). 3) Fixedly connected to the shaft of the drive servo motor (7-4); the drive servo motor (7-4) is fixedly mounted on the assembly mounting plate (5) through the servo motor mounting seat (7-5); the upper feed wheel (8) is rolled on the upper feed wheel mounting seat (9) through the upper feed wheel mounting shaft (8-1), the upper feed wheel mounting shaft (8-1) is fixedly mounted with a second spur gear (8-2), the upper feed wheel mounting seat (9) is movably mounted on the assembly mounting plate (5) through the linear slider, the upper feed wheel mounting seat (9) is fixedly mounted to the pneumatic end of the upper and lower drive cylinder (11) through the upper and lower drive floating joint (10), the upper and lower drive cylinder (11) is fixedly mounted on the assembly mounting plate (5) through the upper and lower drive cylinder mounting seat (11-1), and the upper and lower drive cylinder pressure regulating valve (12) is connected to the piston inlet and outlet interface of the upper and lower drive cylinder (11) through the air pipe.

4. The wiper blade steel sheet stamping and forming machine according to claim 1, characterized in that: The wiper blade length counting mechanism includes a counting mechanism base (13), a lower grooved roller (14), an upper pressing roller (15), a counting wheel (16), a counting wheel mounting roller (17), a counting wheel mounting plate (18), and a counting wheel detection encoder (19). The counting mechanism base (13) is fixedly mounted on the assembly mounting plate (5). The lower grooved roller (14) has two sections, one in the front and one in the back. The lower grooved roller (14) is fixedly mounted on the counting mechanism base (13) through a wheel axle. The upper pressing roller (15) has two sections, one in the front and one in the back. Two upper pressing rollers (15) are fixedly mounted on the base (13) of the metering mechanism via a wheel axle. The lower grooved roller (14) cooperates with the upper pressing roller (15) to straighten and press down the wiper blade. The axis of the metering wheel (16) is fixedly connected to the axis of the metering wheel detection encoder (19) via the metering wheel mounting roller (17). The metering wheel detection encoder (19) is fixedly mounted on the metering wheel mounting plate (18) via a flange. The metering wheel mounting plate (18) is movably mounted on the assembly mounting plate (5) via a slide rail slider.

5. The wiper blade steel sheet stamping and forming machine according to claim 1, characterized in that: The steel sheet forming mechanism includes a forming base (20), forming base rollers (21), forming pressure rollers (22), forming pressure roller movable seat (23), forming pressure roller lead screw (24), forming pressure roller lead screw seat (25), a second coupling (26), and a forming servo motor (27). The forming base (20) is fixedly installed on the assembly mounting plate (5), and the forming base rollers (21) are fixedly installed on the Y-shaped top of the forming base (20) through bearings. The forming pressure rollers (22) are fixedly installed on the forming pressure roller movable seat (23) through bearings. The lead screw nut of the forming pressure roller lead screw (24) is installed on the forming pressure roller movable seat (23). The forming pressure roller movable seat (23) is installed on the assembly mounting plate (5) by sliding up and down through a slider rail. The forming pressure roller screw seat (25) is fixedly installed on the assembly mounting plate (5) by a fixed seat. One end of the second coupling (26) is connected to the forming pressure roller screw (24), and the other end is connected to the rotating shaft of the forming servo motor (27). The forming servo motor (27) is fixedly installed on the assembly mounting plate (5) by a fixed seat.

6. The wiper blade steel sheet stamping and forming machine according to claim 1, characterized in that: The steel sheet stress relief auxiliary forming mechanism includes a pressure roller (28), a pressure seat (29), a drive screw (30), a drive screw fixing seat (31), a third coupling (32), and a fourth servo motor (33). The pressure roller (28) is mounted on the pressure seat (29) through bearings, the drive screw (30) is movably mounted on the pressure seat (29) through a screw nut, the pressure seat (29) is mounted on the assembly mounting plate (5) through a slide rail slider, the drive screw fixing seat (31) is fixedly mounted on the assembly mounting plate (5) through a fixing seat, and the drive screw (30) is connected to the shaft of the fourth servo motor (33) through the third coupling (32).

7. The wiper blade steel sheet stamping and forming machine according to claim 1, characterized in that: The molded guide mechanism includes a guide mechanism fixing seat (34), a guide mechanism lower groove wheel (35), and a guide mechanism upper pressure wheel (36). The guide mechanism fixing seat (34) is fixedly installed on the assembly mounting plate (5). The axis of the guide mechanism lower groove wheel (35) is fixedly installed on the guide mechanism fixing seat (34) through a central shaft. The axis of the guide mechanism upper pressure wheel (36) is fixedly installed on the guide mechanism fixing seat (34) through a central shaft. The guide mechanism upper pressure wheel (36) presses against the upper surface of the wiper blade (50). The grooves of the guide mechanism lower groove wheel (35) limit and jam the wiper blade (50) on both sides. The inner groove circle of the guide mechanism lower groove wheel (35) abuts against the lower surface of the wiper blade (50), forming upper, lower, left and right limits.

8. The wiper blade steel sheet stamping and forming machine according to claim 1, characterized in that: On the right side of the wiper steel sheet forming machine (60), the frame fixing plate base (40) is also equipped with a steel sheet middle notch stamping mechanism and mold (37), a steel sheet mounting hole stamping mechanism and mold (38), and a steel edge end shape stamping and cutting stamping mechanism and mold (39); the frame fixing plate base (40) is covered with a frame cover (43), and the frame cover (43) is equipped with a human-machine dialogue operation machine (41) and a human-machine operation keyboard and mouse (42); the frame cover (43) is equipped with a viewing window, and the bottom of the frame cover (43) is equipped with shock-absorbing and leveling feet.

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