Leaf spring eye processing apparatus

Abstract

The application relates to a steel plate spring eyelet processing device and belongs to the technical field of steel plate spring processing. The device comprises a machine base, the upper end of the machine base is provided with a bottom frame, the front side of the machine base is provided with a support frame, the upper end of the support frame is provided with a hydraulic push rod I, the push rod of the hydraulic push rod I is provided with a top frame, the top frame is located above the bottom frame and is flush with the four edges, and a plurality of rotating rollers are arranged in the bottom frame and the top frame. The steel plate spring eyelet processing device is driven to rotate by cooperating with a driving assembly to automatically perform the eyelet rolling work. In the eyelet rolling process, the hydraulic push rod III synchronously pushes the loading plate to move, the two ends of the steel plate are simultaneously subjected to the eyelet rolling work in the state of stable steel plate positioning, in addition, after the eyelet rolling is completed, the moving seat and the eyelet rolling wheel are driven to move backward by the hydraulic push rod II, the eyelet rolling wheel is separated from the eyelet, and the steel plate after the eyelet rolling is formed is unloaded by moving the top frame upward.

Description

Technical Field

[0001] This utility model relates to the field of steel leaf spring processing technology, specifically to steel leaf spring coiling equipment. Background Technology

[0002] Leaf springs are the most widely used elastic element in automotive suspensions. They are composed of several alloy spring leaves of equal width but unequal length (thickness may be equal or unequal) forming an elastic beam of approximately equal strength. Leaf springs are installed by suspending them on the chassis frame with lugs to reduce the violent movement of the vehicle body. Therefore, lugs are required to be used to suspend the leaf springs during the production process.

[0003] The leaf spring coiling equipment is existing technology. Referring to a leaf spring coiling equipment disclosed in Chinese Patent CN220259223U, it includes a frame, which comprises an arch and a table. The arch has a top plate, a coiling wheel on its inner side, and a drive mechanism on its outer side. One side of the table has a strip-shaped groove. The coiling wheel includes a shaft that passes through the arch and connects to the drive mechanism. An arched clamping plate is provided on the outer circumference of the shaft, with a clamping groove between the clamping plate and the shaft for holding the end of the leaf spring. The outer wall of the arched clamping plate gradually moves away from the axis of the shaft. A touch switch is located directly below the coiling wheel, and the tail end of the arched clamping plate can touch the touch switch. A first telescopic mechanism is located inside the arch, fixed to the arch. The telescopic end of the first telescopic mechanism is flush with the table. The touch switch is electrically connected to the first telescopic mechanism. This design solves the problem of low efficiency caused by the need for manual disassembly after the leaf spring coiling is formed.

[0004] The prior art improves the efficiency of the ear rolling process, but still has the following technical defects. First, the steel plate needs to be manually stabilized during the ear rolling process, which can easily cause the steel plate to shift during the rolling process, resulting in uneven sides after the ear is formed, requiring subsequent correction. It is also easy for the plate to fall out of the clamping groove. Second, it can only roll the ear at one end. Therefore, we propose a steel plate spring ear rolling processing equipment to solve this technical defect. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a steel leaf spring coiling lug processing equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel leaf spring coiling ear processing equipment, including a machine base, a bottom frame at the upper end of the machine base, a support frame at the front side of the machine base, a hydraulic push rod at the upper end of the support frame, a top frame at the push rod of the hydraulic push rod, the top frame being located above the bottom frame and having its four sides aligned, multiple rotating rollers rotating inside both the bottom frame and the top frame, the rotating rollers protruding to the outside of the bottom frame and the top frame, a sliding limit plate passing through the outside of the rotating rollers, the limit plate protruding to the outside of the rotating rollers, and an adjustment locking assembly provided on the bottom frame and the top frame, the adjustment locking assembly being used to lock and fix the limit plate after it has been moved and adjusted;

[0007] A hydraulic push rod 2 is embedded in the middle of the rear side of the machine base. A movable seat is provided at the push rod of the hydraulic push rod 2. A loading plate slides in the movable seat. A drive assembly is provided at the rear end of the loading plate. The drive assembly drives the ear wheel to rotate. A clamping groove is provided on the ear wheel. A hydraulic push rod 3 is provided at the rear side of the movable seat. The push rod of the hydraulic push rod 3 is connected to the loading plate.

[0008] Using the above technical solution, based on the width of the steel plate being processed, the limiting plates are adjusted to move towards each other outside the rotating rollers of the bottom frame and top frame, so that the distance between the limiting plates is equal to the width of the steel plate. After adjustment, the limiting plates are locked and fixed by adjusting the locking assembly. Then, in conjunction with the hydraulic push rod set on the support frame, the top frame is moved upward, making it easier to place the steel plate on the rotating roller below and limit it by the limiting plates. After placement, the top frame is moved downward by the hydraulic push rod, so that the rotating roller above contacts the upper surface of the steel plate, thereby realizing the placement limitation of the solution and the rotational conveying of the rotating roller.

[0009] After the steel plate is stably placed, the loading plate is pushed by the third hydraulic pusher to move synchronously towards each other on the moving seat, so that both ends of the steel plate are inserted into the clamping grooves on the two side ear rolling wheels. In conjunction with the drive component, the ear rolling wheels are driven to rotate to perform automatic ear rolling. During the ear rolling process, the third hydraulic pusher pushes the loading plate to move synchronously, so that the ear rolling work is performed on both ends of the steel plate at the same time while the steel plate is in a stable position. In addition, after the ear rolling is completed, the moving seat and ear rolling wheels are moved backward by the second hydraulic pusher, so that the ear rolling wheels are disengaged from the ear rolling. And by moving the top frame upward, the steel plate after ear rolling can be unloaded.

[0010] As a preferred technical solution of this utility model, the adjusting locking assembly includes a locking frame disposed in the middle of the opposing surfaces of the bottom frame and the top frame. The locking frame is provided with an adjusting hole, and the limiting plate is provided with a locking screw that passes through the adjusting hole. The locking screw is threadedly locked onto the locking frame by a nut.

[0011] Using the above technical solution, when the limiting plate moves, it drives the locking screw to move in the adjustment hole on the locking frame. After the adjustment is completed, the locking screw and the limiting plate can be locked and fixed by tightening the nut.

[0012] As a preferred embodiment of this utility model, the front and rear ends of the ear roller are aligned with the front and rear ends of the top frame.

[0013] As a preferred embodiment of this utility model, the movable seat is provided with a limiting sliding hole for the loading plate to slide.

[0014] By adopting the above technical solution, the limiting sliding hole ensures the stability of the loading plate sliding.

[0015] As a preferred embodiment of this utility model, the drive assembly includes a reducer located on the rear side of the loading plate, the input end of the reducer is connected to a drive motor, and the output end of the reducer is detachably connected to the wicking wheel at the same center.

[0016] Using the above technical solution, the drive motor and reducer work together to drive the ear roller to rotate.

[0017] As a preferred technical solution of this utility model, a steel plate is inserted between the clamping grooves, the steel plate is located between the upper and lower rotating rollers, and the front and rear of the steel plate are limited by the front and rear limiting plates.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0019] This steel plate spring coiling equipment adjusts the distance between the limiting plates on the bottom and top frames to equal the width of the steel plate by moving the limiting plates towards each other outside the rotating rollers of the bottom and top frames, according to the width of the steel plate. After adjustment, the limiting plates are locked and fixed by the locking assembly. Then, the hydraulic push rod on the support frame moves the top frame upward, making it easier to place the steel plate on the rotating roller below and limit it by the limiting plates. After placement, the hydraulic push rod moves the top frame downward, so that the rotating roller above contacts the upper surface of the steel plate, thus realizing the placement limitation of the plate and the rotation and conveying of the rotating roller.

[0020] After the steel plate is stably placed, the loading plate is pushed by the third hydraulic pusher to move synchronously towards each other on the moving seat, so that both ends of the steel plate are inserted into the clamping grooves on the two side ear rolling wheels. In conjunction with the drive component, the ear rolling wheels are driven to rotate to perform automatic ear rolling. During the ear rolling process, the third hydraulic pusher pushes the loading plate to move synchronously, so that the ear rolling work is performed on both ends of the steel plate at the same time while the steel plate is in a stable position. In addition, after the ear rolling is completed, the moving seat and ear rolling wheels are moved backward by the second hydraulic pusher, so that the ear rolling wheels are disengaged from the ear rolling. And by moving the top frame upward, the steel plate after ear rolling can be unloaded. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a side view of the present invention;

[0023] Figure 3 This is a three-dimensional structural view of the top frame of this utility model;

[0024] Figure 4 This is a side view of the top frame of this utility model;

[0025] Figure 5 This is a bottom-view perspective view of the present invention.

[0026] In the diagram: 1. Machine base; 2. Base frame; 3. Support frame; 4. Hydraulic push rod one; 5. Top frame; 6. Rotating roller; 7. Limiting plate; 8. Locking frame; 9. Adjusting hole; 10. Locking screw; 11. Nut; 12. Hydraulic push rod two; 13. Moving seat; 14. Loading plate; 15. Reducer; 16. Hydraulic push rod three; 17. Drive motor; 18. Ear roller; 19. Clamping groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 5 The steel leaf spring coiling equipment in this embodiment includes a base 1. The base 1 serves as the basic support structure for the entire equipment and is made of high-strength alloy steel, possessing sufficient strength and stability to withstand various loads during equipment operation. A bottom frame 2 is fixed to the upper surface of the base 1, and the bottom frame 2 is bolted to the base 1, providing a foundation for the installation of subsequent components. A support frame 3 is fixed to the middle of the front surface of the base 1. The support frame 3 is also made of high-strength alloy steel and is fixed to the base 1 by welding or bolting, providing installation support for the hydraulic push rod 4. The upper surface of the support frame 3 is fixed with the hydraulic push rod 4, which is a hydraulic cylinder with sufficient thrust and stroke, and is bolted to the support frame 3. A top frame 5 is fixed to the push rod of the hydraulic push rod 4, and the top frame 5 is bolted to the push rod of the hydraulic push rod 4. The top frame 5 is located above the bottom frame 2 and has its four sides aligned, together forming a space for placing and conveying steel plates.

[0029] Multiple rotating rollers 6 are evenly distributed between the front and rear side walls of the inner cavity of the bottom frame 2 and the top frame 5. The number can be set according to actual needs, for example, it can be set to 8. The rotating rollers 6 are made of high-quality steel and the surface is quenched to improve their hardness and wear resistance. The rotating rollers 6 are installed on the bottom frame 2 and the top frame 5 respectively through bearings so that they can rotate freely. The rotating rollers 6 protrude to the outside of the bottom frame 2 and the top frame 5. A sliding limit plate 7 passes through the outside of the rotating rollers 6. The limit plate 7 is made of high-strength aluminum alloy material, which has the characteristics of light weight and high strength. The limit plate 7 protrudes to the outside of the rotating rollers 6 and is used to limit the steel plate in the front and rear directions. The bottom frame 2 and the top frame 5 are provided with adjustment and locking components. The adjustment and locking components are used to lock and fix the limit plate 7 after it has been moved and adjusted.

[0030] The adjusting locking assembly includes a locking frame 8 fixed to the middle of the opposing surfaces of the bottom frame 2 and the top frame 5. The locking frame 8 is made of high-strength steel and is fixed to the bottom frame 2 and the top frame 5 by welding or bolting. The locking frame 8 has an adjusting hole 9, which is an elongated hole whose length direction is consistent with the moving direction of the limiting plate 7. A locking screw 10 is fixed to the upper surface of the limiting plate 7, which passes through the adjusting hole 9. The locking screw 10 is made of high-strength steel and its diameter matches the width of the adjusting hole 9. The locking screw 10 is threaded onto the locking frame 8 by a nut 11 with an external thread. The nut 11 is a standard nut. By tightening the nut 11, the locking screw 10 and the limiting plate 7 can be locked and fixed.

[0031] A hydraulic push rod 12 is embedded and fixed in the middle of the rear surface of the machine base 1. The hydraulic push rod 12 is also a hydraulic cylinder with sufficient thrust and stroke. It is fixed to the machine base 1 by bolts. A movable seat 13 is fixed at the push rod of the hydraulic push rod 12. The movable seat 13 is made of high-strength alloy steel and is connected to the push rod of the hydraulic push rod 12 by bolts. A pair of loading plates 14 slide inside the movable seat 13. The loading plates 14 are located on the left and right sides of the middle of the bottom frame 2 and the top frame 5, respectively. The movable seat 13 is provided with a limiting sliding hole for the loading plate 14 to slide. The size of the limiting sliding hole matches the size of the loading plate 14 to ensure the stability of the sliding of the loading plate 14. A drive assembly is provided at the rear end of the loading plate 14. The drive assembly drives the ear wheel 18 to rotate.

[0032] The drive assembly includes a reducer 15 fixed to the rear surface of the loading plate 14. The reducer 15 is equipped with a suitable reduction ratio to meet the rotation speed requirements of the ear roller 18. The input end of the reducer 15 is connected to a drive motor 17, which is a motor with appropriate power. The drive motor 17 is connected to the input end of the reducer 15 through a coupling. The output end of the reducer 15 is detachably connected to the ear roller 18 with the same center. This connection method facilitates the replacement of ear rollers 18 of different specifications to meet the ear rolling processing requirements of steel plates of different sizes.

[0033] The ear roller 18 has a clamping groove 19. The size of the clamping groove 19 is designed according to the thickness and width of the steel plate to ensure that the steel plate can be firmly clamped. A hydraulic push rod 16 is fixed on the rear surface of the movable seat 13. The hydraulic push rod 16 is fixed to the movable seat 13 by bolts. Its push rod is connected and fixed to the loading plate 14 to push the loading plate 14 to slide on the movable seat 13.

[0034] The front and rear ends of the ear roller 18 are aligned with the front and rear ends of the top frame 5. This design allows the ear roller 18 to fully contact the steel plate during the ear rolling process, ensuring the quality and precision of the ear rolling.

[0035] A steel plate is inserted between the clamping grooves 19. The steel plate is located between the upper and lower rotating rollers 6. The front and back of the steel plate are limited by the front and rear side limiting plates 7. This design enables the steel plate to maintain a stable position during the ear rolling process and prevents it from shifting or coming out.

[0036] To achieve automated operation of the equipment, the steel leaf spring coiling equipment of this utility model is equipped with a complete control system, which mainly consists of a PLC controller, sensors and an operation panel.

[0037] As the core of the control system, the PLC controller is selected as a model with powerful processing capabilities and rich interfaces. It can receive signals from sensors in real time and precisely control the hydraulic push rod 1-4, hydraulic push rod 2-12, hydraulic push rod 3-16 and drive motor 17 according to the preset program.

[0038] The sensors include position sensors and pressure sensors. The position sensors are installed on the top frame 5, the moving base 13, and the loading plate 14, respectively, to monitor their position information in real time and feed the signals back to the PLC controller. The pressure sensors are installed on the hydraulic push rod 4, the hydraulic push rod 12, and the hydraulic push rod 16, to monitor the pressure of the hydraulic push rods and ensure that the pressure is stable during the operation of the equipment, so as to avoid affecting the processing quality due to excessive or insufficient pressure.

[0039] The control panel is installed on one side of the equipment. Operators can input processing parameters, such as the width of the steel plate and the diameter of the rolled lug, and start and stop the operation of the equipment through the control panel. At the same time, the control panel is also equipped with a display screen, which can display the operating status and processing parameters of the equipment in real time, making it convenient for operators to monitor and adjust.

[0040] Usage steps,

[0041] According to the width of the steel plate being processed, the limiting plate 7 is adjusted to move towards each other outside the rotating rollers 6 of the bottom frame 2 and the top frame 5, so that the distance between the limiting plates 7 is equal to the width of the steel plate. During adjustment, the nut 11 is loosened, the limiting plate 7 is moved, and the locking screw 10 is moved in the adjusting hole 9 on the locking frame 8. After the adjustment is completed, the nut 11 is tightened to lock and fix the locking screw 10 and the limiting plate 7.

[0042] Operate the control panel and start the hydraulic push rod 4 to move the top frame 5 upward, making room for the steel plate to be placed.

[0043] The steel plate is placed on the rotating roller 6 below, so that the front and back of the steel plate come into contact with the front and back limit plates 7 to achieve the limit.

[0044] Operate the control panel again to control the hydraulic push rod 4 to move the top frame 5 down, so that the upper rotating roller 6 contacts the upper surface of the steel plate, further stabilizing the position of the steel plate. At the same time, the rotating roller 6 can rotate, which facilitates the conveying of the steel plate.

[0045] Operate the control panel to control the hydraulic push rod 16 to push the loading plate 14 to move synchronously towards each other on the moving seat 13, so that the two ends of the steel plate are respectively inserted into the clamping grooves 19 on the two side lugs 18.

[0046] Start the drive motor 17, which drives the ear rolling wheel 18 to rotate through the reducer 15 to perform automatic ear rolling. During the ear rolling process, the hydraulic push rod 16 simultaneously pushes the loading plate 14 to move, so that the two ends of the steel plate can be rolled at the same time while the steel plate is in a stable position.

[0047] After the ear is rolled, operate the control panel to control the hydraulic push rod 12 to move the moving seat 13 and the ear rolling wheel 18 backward, so that the ear rolling wheel 18 disengages from the ear.

[0048] Finally, by controlling the hydraulic push rod 4 to move the top frame 5 upward, the steel plate after the ear is formed can be unloaded.

[0049] principle,

[0050] This utility model's steel plate spring coiling processing equipment, through a reasonable structural design, achieves stable positioning of the steel plate during the coiling process and simultaneous processing of both ends. The adjusting locking component can flexibly adjust the position of the limiting plate 7 according to the width of the steel plate and lock and fix the limiting plate 7 to ensure the stability of the steel plate's position in the front-back direction. The coordinated action of hydraulic push rod 1 4, hydraulic push rod 2 12, and hydraulic push rod 3 16 realizes the up-and-down movement of the top frame 5, the front-and-back movement of the moving seat 13, and the opposite movement of the loading plate 14, providing precise power control for the placement, conveying, and coiling of the steel plate. The drive component drives the coiling wheel 18 to rotate, realizing the coiling processing of both ends of the steel plate. The control system, through the cooperation of the PLC controller, sensors, and operation panel, realizes the automated operation of the equipment, improving production efficiency and processing quality.

[0051] Beneficial effects

[0052] Stabilizing the position of the steel plate: By adjusting and locking the position of the limiting plate 7, it can accurately limit the position of steel plates of different widths, prevent the steel plate from shifting during the ear rolling process, ensure that the side of the ear is flat after forming, and eliminate the need for subsequent correction, thus improving product quality.

[0053] Preventing steel plate from coming out: The dual limiting function of the limiting plate 7 and the clamping groove 19 effectively prevents the steel plate from coming out of the clamping groove during the ear rolling process, thus improving the safety and stability of the process.

[0054] Simultaneous processing at both ends: The loading plate 14 is pushed to move in opposite directions by the hydraulic push rod 16, so that both ends of the steel plate can be inserted into the clamping groove 19 of the ear rolling wheel 18 at the same time, and the ear rolling processing at both ends can be realized simultaneously, which greatly improves production efficiency and shortens the processing cycle.

[0055] High degree of automation: The equipped control system enables automated operation of the equipment. Operators only need to input processing parameters through the control panel to start, stop, and monitor the processing process, reducing labor intensity and improving the level of intelligent production.

[0056] Reasonable structure and easy maintenance: The various components of the equipment are reasonably designed and the connection method is simple and reliable, which facilitates installation, disassembly and maintenance. At the same time, the design of the detachable ear roller 18 makes it easy to replace ear rollers of different specifications to meet the ear rolling processing needs of steel plates of different sizes.

[0057] In summary, the steel plate spring coiling equipment of this utility model has the advantages of stabilizing the position of the steel plate, preventing the steel plate from falling out, processing both ends simultaneously, high degree of automation, reasonable structure and easy maintenance. It can effectively solve the problems existing in the prior art and has broad market application prospects.

[0058] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0059] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel leaf spring coiling lug processing equipment, including a machine base, characterized in that, The base is provided with a bottom frame at the upper end, and a support frame is provided on the front side of the base. A hydraulic push rod is provided at the upper end of the support frame, and a top frame is provided at the push rod of the hydraulic push rod. The top frame is located above the bottom frame and its four sides are aligned. Multiple rotating rollers are rotatably mounted inside the bottom frame and the top frame. The rotating rollers protrude to the outside of the bottom frame and the top frame. A limit plate slides through the outside of the rotating rollers. The limit plate protrudes to the outside of the rotating rollers. An adjustment locking assembly is provided on the bottom frame and the top frame. The adjustment locking assembly is used to lock and fix the limit plate after it has been moved and adjusted. A hydraulic push rod 2 is embedded in the middle of the rear side of the machine base. A movable seat is provided at the push rod of the hydraulic push rod 2. A pair of loading plates slide inside the movable seat. A drive assembly is provided at the rear end of the loading plate. The drive assembly drives the ear wheel to rotate. A clamping groove is opened on the ear wheel. A hydraulic push rod 3 is provided at the rear side of the movable seat. The push rod of the hydraulic push rod 3 is connected to the loading plate.

2. The steel leaf spring coiling equipment according to claim 1, characterized in that: The adjustment and locking assembly includes a locking frame located at the midpoint of the opposing surfaces of the bottom frame and the top frame. The locking frame has an adjustment hole, and the limiting plate has a locking screw that passes through the adjustment hole. The locking screw is threaded onto the locking frame by a nut.

3. The steel leaf spring coiling equipment according to claim 1, characterized in that: The front and rear ends of the ear roller are aligned with the front and rear ends of the top frame.

4. The steel leaf spring coiling equipment according to claim 1, characterized in that: The movable base is provided with limiting sliding holes for the loading plate to slide.

5. The steel leaf spring coiling equipment according to claim 1, characterized in that: The drive assembly includes a speed reducer located on the rear side of the loading plate. The input end of the speed reducer is connected to a drive motor, and the output end of the speed reducer is detachably connected to the wicking wheel at the same center.

6. The steel leaf spring coiling equipment according to claim 1, characterized in that: A steel plate is inserted between the clamping grooves. The steel plate is located between the upper and lower rotating rollers, and the front and back of the steel plate are limited by the front and rear limiting plates.

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