Rolling lug pressing device with rolling wheel

Abstract

The utility model relates to the technical field of automobile plate spring production equipment, in particular to a spring eye pressing device with a roller, which comprises an oil cylinder and the roller, the end of an oil cylinder rod of the oil cylinder is connected with a connecting plate, the connecting plate is rotatably connected with a rotating pressing plate through a pin shaft, the lower portion of the rotating pressing plate is connected with a pressing sliding seat, and the roller is mounted on the pressing sliding seat. The roller is in contact with the plate spring; according to the spring eye pressing device with the idler wheel, the rotating pressing plate can rotate around the pin shaft by a small angle to adapt to the effects that a plate spring inclines, the pressing sliding seat is pressed downwards in an inclined mode, the idler wheel makes contact with the plate spring firstly, and the plate spring is bent, the friction force at the corner is greatly reduced due to the idler wheel, the friction force between the pressing plate and the plate spring is greatly reduced, and the service life of the pressing plate is prolonged. The problems that the upper surface of the spring eye is scratched and the total length change is large after the lug hole is formed are thoroughly solved, and the plate spring production quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile leaf spring production equipment, and specifically relates to a lug pressing device with a roller. BACKGROUND

[0002] The automobile leaf spring lug forming machine is a device specially used for manufacturing automobile leaf spring lugs (i.e. the curved parts at both ends of the leaf spring). The leaf spring is an important component in the automobile suspension system, which is used to support the weight of the vehicle body and absorb shocks during driving. The lug is one of the key parts of the leaf spring, and through the lug, the leaf spring can be fixed on the vehicle frame. The functions of the lug forming machine are as follows: 1. Lug forming: bending both ends of the leaf spring into the required shape for connection with other components. 2. Precise control: ensuring that the shape and size of the lug meet the design requirements, ensuring the installation accuracy of the leaf spring. 3. Improving efficiency: automated or semi-automated operation, improving production efficiency and reducing labor costs. 4. Quality assurance: through precise control and stable process, ensuring the quality and reliability of the leaf spring. By using the automobile leaf spring lug forming machine, the efficiency and quality of leaf spring production can be greatly improved, ensuring the reliability and stability of the automobile suspension system.

[0003] The lug pressing device is an important part of the automobile leaf spring lug forming machine. The existing lug hole forming limiting mechanism includes a cylinder, a connecting plate, a fixed seat, a guide column, and a pressing block. During the lug hole forming process, the pressing block directly contacts the leaf spring, which plays a role in pressing and limiting the leaf spring. During the rolling process, the clamping jaw clamps the head of the leaf spring and rotates around the core shaft by a certain angle, forming a dragging force on the tail end of the leaf spring, and friction occurs between the leaf spring and the pressing block. The pressing block is a whole machining part, which will always be in contact with the leaf spring during the lug hole forming process. The opposite force of the pressing block on the leaf spring will cause scratches on the surface of the leaf spring. Sometimes, due to differences in heating temperature, the total length of the products formed in the same batch or even in the same batch before and after forming has a large difference.

[0004] Therefore, it is urgent to design a lug pressing device with a roller to solve the problems of insufficient lug angle of the leaf spring after the lug hole forming process, large change in the total length after forming, and easy scratches on the upper surface due to the limitation of the pre-pressing position in the existing automobile leaf spring lug forming process. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a lug pressing device with a roller.

[0006] The technical scheme adopted by the utility model to solve its technical problems is: a lug pressing device with a roller, including a cylinder and a roller, the cylinder rod end of the cylinder is connected with a connecting plate, the connecting plate is connected with a rotating pressing plate through a pin shaft, the lower part of the rotating pressing plate is connected with a pressing slide, the pressing slide is installed with a roller, and the roller contacts on the leaf spring.

[0007] Specific is, the cylinder body of the oil cylinder is installed on the oil cylinder mounting seat, the oil cylinder mounting seat is installed on the pressing frame, and the oil cylinder rod of the oil cylinder is connected with the connecting plate through threads.

[0008] Specific is, one side of the oil cylinder mounting seat is provided with a through hole, the guide rod is penetrated in the through hole, the guide rod slides in the through hole, and the guide rod is connected with the connecting plate through the positioning pin.

[0009] Specific is, the connecting plate adopts a wedge-shaped structure, the rotating pressing plate is provided with a wedge-shaped groove, and the wedge-shaped structure of the connecting plate is embedded in the wedge-shaped groove in a matched mode and is connected through the pin shaft.

[0010] Specific is, the lower part of the rotating pressing plate is provided with a dovetail groove, and the upper part of the pressing slide is connected in the dovetail groove in a matched sliding mode.

[0011] Specific is, the pressing slide is provided with a bearing seat, the inner ring of the bearing seat is provided with an adjusting bolt, the rotating pressing plate is provided with a threaded hole, the threaded end of the adjusting bolt is connected with the threaded hole, and the position of the pressing slide relative to the rotating pressing plate is controlled through the adjusting bolt.

[0012] Specific is, two rollers are installed at two corners of the lower part of the pressing slide.

[0013] The utility model has the following beneficial effects:

[0014] The rotating pressing plate of the ear pressing device with rollers can rotate at a small angle around the pin shaft, the plate spring can be adapted to be inclined, the pressing slide can be inclined and pressed down, the roller can first contact the plate spring and form a bending effect on the plate spring, the existence of the roller can greatly reduce the friction force at the corner, the friction force between the pressing plate and the plate spring can be greatly reduced, the problems of surface scratch on the ear and large total length change after ear hole forming can be solved, and the production quality of the plate spring can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the front face partial sectional view of the ear pressing device with rollers.

[0016] Fig. 2 It is the side view of the ear pressing device with rollers.

[0017] As shown in the drawings: 1 - oil cylinder; 2 - oil cylinder rod; 3 - guide rod; 4 - connecting plate; 5 - rotating pressing plate; 6 - pressing slide; 7 - roller; 8 - pin shaft; 9 - adjusting bolt; 10 - dovetail groove; 11 - oil cylinder mounting seat; 12 - pressing frame. DETAILED DESCRIPTION

[0018] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] like Figs. 1-2 As shown, a roller-equipped ear clamping device includes a hydraulic cylinder 1, a guide rod 3, a connecting plate 4, a rotating pressure plate 5, a clamping slide 6, and rollers 7. The cylinder body of the hydraulic cylinder 1 is mounted on a hydraulic cylinder mounting base 11, which is mounted on a clamping frame 12. The end of the hydraulic cylinder rod 2 of the hydraulic cylinder 1 is threadedly connected to the connecting plate. The connecting plate 4 is rotatably connected to the rotating pressure plate 5 via a pin 8. The lower part of the rotating pressure plate 5 is connected to the clamping slide 6, and rollers 7 are mounted on the clamping slide 6. The rollers 7 contact the leaf spring.

[0020] The cylinder mounting base 11 has a through hole on one side, through which the guide rod 3 passes. The guide rod 3 slides in the through hole. The guide rod 3 is connected to the connecting plate 4 by a positioning pin. The positioning pin is fully locked and will not be displaced.

[0021] The connecting plate 4 adopts a wedge-shaped structure, and the rotating pressure plate 5 is provided with a wedge-shaped groove. The wedge-shaped structure of the connecting plate 4 is fitted into the wedge-shaped groove and rotated through the pin 8. The rotating pressure plate 5 can rotate at a small angle.

[0022] The lower part of the rotating pressure plate 5 is provided with a dovetail groove 10. The upper part of the pressing slide 6 is adapted to slide within the dovetail groove 10. A bearing seat is installed on the pressing slide 6, and an adjusting bolt 9 is installed on the inner ring of the bearing seat. The rotating pressure plate 5 is provided with a threaded hole, and the threaded end of the adjusting bolt 9 is connected to the threaded hole. The adjusting bolt 9 controls the position of the pressing slide 6 relative to the rotating pressure plate 5. The pressing slide 6 slides forward and backward within the dovetail groove 10 of the rotating pressure plate 5 via the adjusting bolt 9.

[0023] A roller 7 is installed at each of the two lower corners of the pressing slide 6.

[0024] The working principle of this utility model:

[0025] During ear rolling, the cylinder rod 2 descends to the bottom of the cylinder, pressing the bottom surface of the sliding block 6 and the roller 7 to limit the movement of the leaf spring. During ear rolling, the pressure plate 5 can rotate slightly around the pin 8 to accommodate the tilt of the leaf spring. The pressure block 6 tilts downwards, and the roller 7 contacts the leaf spring first, creating a bending effect. During rolling, due to the dragging of the grippers, the pressure block 6 rotates slightly, and the presence of the roller 7 greatly reduces friction at the corners. Therefore, after the ear hole is formed, the scratches on the upper surface of the leaf spring are completely eliminated. This significantly reduces the friction between the pressure plate and the leaf spring, completely solving the problems of scratches on the upper surface of the ear and large changes in the total length after ear hole formation.

[0026] This utility model is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

[0027] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] 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 roller-equipped ear-pressing device, characterized in that, It includes a hydraulic cylinder and rollers. The end of the hydraulic cylinder rod is connected to a connecting plate. The connecting plate is rotatably connected to a rotating pressure plate via a pin. The lower part of the rotating pressure plate is connected to a pressing slide. Rollers are installed on the pressing slide and the rollers contact the leaf spring.

2. The rolling ear clamping device with rollers according to claim 1, characterized in that, The cylinder body of the hydraulic cylinder is mounted on a hydraulic cylinder mounting base, which is mounted on a pressing frame. The cylinder rod of the hydraulic cylinder is connected to the connecting plate by threads.

3. The rolling ear clamping device with rollers according to claim 2, characterized in that, The cylinder mounting base has a through hole on one side, through which a guide rod passes. The guide rod slides within the through hole and is connected to the connecting plate by a locating pin.

4. The rolling ear clamping device with rollers according to claim 1, characterized in that, The connecting plate adopts a wedge-shaped structure, and the rotating pressure plate is provided with a wedge-shaped groove. The wedge-shaped structure of the connecting plate is adapted to be embedded in the wedge-shaped groove and is rotatably connected by a pin.

5. The rolling ear clamping device with rollers according to claim 1, characterized in that, The lower part of the rotating pressure plate is provided with a dovetail groove, and the upper part of the pressing slide is adapted to slide within the dovetail groove.

6. The rolling ear clamping device with rollers according to claim 5, characterized in that, The clamping slide is equipped with a bearing seat, and an adjusting bolt is installed on the inner ring of the bearing seat. The rotating pressure plate is provided with a threaded hole, and the threaded end of the adjusting bolt is connected to the threaded hole. The adjusting bolt controls the position of the clamping slide relative to the rotating pressure plate.

7. The rolling ear clamping device with rollers according to claim 1, characterized in that, A roller is installed at each of the two lower corners of the clamping slide.

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