Automobile plate spring production lug rolling device facilitating stress elimination
By using components such as bending rollers and electrically controlled magnets in the automotive leaf spring winding device, the problem of stress diffusion during the leaf spring winding process was solved, achieving stable winding and crack prevention of the leaf spring, thus improving product quality.
Patent Information
- Application Number
- CN202520576825.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-31
AI Technical Summary
During the rolling process of automotive leaf springs, the elastic deformation of the steel material causes internal stress to diffuse outward, resulting in cracks at the bending points of the outer surface, which affects service life and rust resistance.
An eye-rolling device for automotive leaf spring production that facilitates stress relief is adopted. By setting bending rollers and motor drive inside the U-shaped frame, combined with an electrically controlled magnet and a buffer damper, a stable eye-rolling process for the leaf spring is achieved, avoiding the diffusion of internal stress.
This effectively prevents cracking at the bending points of the leaf spring, improves the service life and rust resistance of the leaf spring, and reduces the impact of impacts during the production process.
Smart Images
Figure CN223902693U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to leaf spring processing technical field especially, relates to a kind of ear winding devices for automobile leaf spring production convenient to eliminate stress. BACKGROUND
[0002] Automobile leaf spring is the most traditional elastic element in automobile suspension system, which is widely used due to its good reliability, simple structure, short manufacturing process, low cost and greatly simplified structure. Automobile leaf spring is generally composed of several pieces of alloy spring steel with different lengths, forming a group of approximately equal-strength spring beams. In the suspension system, in addition to its buffering effect, when it is placed longitudinally in the car and one end is fixedly connected with the frame as a fixed hinge, it can bear all forces and moments in all directions and determine the trajectory of wheel movement, playing a guiding role.
[0003] Currently, in order to facilitate the installation of the connection between the leaf spring and the automobile, the two ends of the leaf spring need to be ear-wound. However, due to the good elastic deformation of the steel material of the leaf spring, the stress generated inside the leaf spring during ear-winding will spread to the outer surface, causing cracks at the curved part of the outer surface, which can be easily rusted by rainwater during subsequent use. SUMMARY
[0004] The utility model discloses a kind of ear winding devices for automobile leaf spring production convenient to eliminate stress to solve prior art problems.
[0005] To solve the above technical problems, the basic idea of the technical scheme adopted by the utility model is as follows:
[0006] An ear winding device for automobile leaf spring production convenient to eliminate stress, comprising a conveying table, a side plate is fixed to the top of the conveying table near one side edge, a motor is fixed inside the side plate, a U-shaped bracket is fixed to the output end of the motor, mounting grooves are formed in the four corners of the inside of the U-shaped bracket, bending rollers are rotatably arranged in the four mounting grooves, and the bottoms of the four bending rollers correspondingly extend to the inside edge of the U-shaped bracket.
[0007] Optionally, a conveying groove is formed in the top of the conveying table, and a conveying plate is slidably arranged in the conveying groove.
[0008] Optionally, an electric sliding rail is fixed to the top of the conveying table near the other side edge, a connecting piece is fixed to the top of the conveying plate at one corner, and one end of the connecting piece is connected to the electric sliding rail.
[0009] Optionally, an arc-shaped limiting opening is formed in the top of the conveying plate, an arc-shaped supporting block is fixed to the top of the conveying plate near one end edge, and an electrically controlled magnet is arranged in the inside of the arc-shaped supporting block.
[0010] Optionally, the front end of the conveying table is fixed with a side frame, the inside of the side frame is fixed with a buffer damper, and one end of the buffer damper is fixed on the conveying plate.
[0011] Optionally, the inside bottom surface of the conveying groove is provided with a sliding groove, and the bottom of the conveying plate is fixed with a sliding block which is slidingly connected in the inside of the sliding groove.
[0012] After the above technical scheme is adopted, the present application has the following advantages compared with the prior art, of course, any product implementing the present application does not necessarily need to achieve all the advantages mentioned below:
[0013] 1. In the present application, the U-shaped frame is installed at the output end of the motor, installation grooves are provided at the four corners inside the U-shaped frame, and bending pressure rollers are arranged in the installation grooves, so that when the one end of the plate spring to be bent extends into the U-shaped frame, the bending pressure roller and the one end of the plate spring are in close contact, and the rotation of the motor drives the one end of the plate spring to bend, thereby forming a loop, and the bending pressure roller and the plate spring are in contact, so that the outer surface of the bending part can be pressed when the plate spring is bent at the edge, thereby avoiding the internal stress from spreading outward and causing the bending surface to crack.
[0014] 2. In the present application, when the plate spring is conveyed, the plate spring is first placed on the conveying plate, the arc-shaped limiting opening provided at the top of the conveying plate is used to constrain the plate spring, the arc surface of the arc-shaped supporting block is in close contact with one side of the plate spring, the arc-shaped supporting block is used to support the plate spring, then the one end of the plate spring is attracted by the electric control magnet, and the conveying plate is driven to slide by starting the electric sliding rail, and when the loop of the plate spring falls off during the process, the conveying plate will be impacted, and the buffer damper can reduce the impact at this time. BRIEF DESCRIPTION OF DRAWINGS
[0015] The following description is only some embodiments, and other drawings can be obtained from the drawings without creative labor for those skilled in the art. In the drawings:
[0016] Fig. 1 A side perspective structural schematic view of the loop device for automobile plate spring production is provided for the present application.
[0017] Fig. 2 Another side perspective structural schematic view of the loop device for automobile plate spring production is provided for the present application.
[0018] Fig. 3 A cross-sectional perspective structural schematic view of the U-shaped frame in the loop device for automobile plate spring production is provided for the present application.
[0019] The attached diagram lists the components represented by each number as follows:
[0020] 1. Conveyor table; 2. Side plate; 3. Motor; 4. Conveyor trough; 5. Conveyor plate; 6. Arc-shaped support block; 7. Connector; 8. Electric slide rail; 9. Arc-shaped limit port; 10. Side frame; 11. Buffer damper; 12. Slide groove; 13. Slider; 14. Electromagnet; 15. U-shaped frame; 16. Mounting groove; 17. Bending pressure roller.
[0021] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings.
[0023] Example 1, as Figs. 1-3 As shown, this utility model provides a technical solution for a rolling ear device for automobile leaf spring production that facilitates stress relief: it includes a conveyor table 1, a side plate 2 fixed at the top of the conveyor table 1 near one side edge, a motor 3 fixed inside the side plate 2, a U-shaped frame 15 fixed at the output end of the motor 3, and mounting grooves 16 opened at the four corners inside the U-shaped frame 15. Bending rollers 17 are rotatably arranged inside the four mounting grooves 16, and the bottoms of the four bending rollers 17 extend to the inner edge of the U-shaped frame 15.
[0024] The effect achieved by the entire embodiment 1 is that the U-shaped frame 15 is installed at the output end of the motor 3, and the mounting grooves 16 are opened at the four corners inside the U-shaped frame 15. Then, bending rollers 17 are set inside the four mounting grooves 16. When the end of the leaf spring to be bent is extended into the U-shaped frame 15, the bending rollers 17 are in contact with the end of the leaf spring. As the motor 3 rotates, it drives the end of the leaf spring to bend, thereby forming a curled ear. By contacting the leaf spring with the bending rollers 17, the outer surface of the bent part can be pressed when the leaf spring is bent at the edge, so as to avoid the internal stress from spreading outward and causing cracking on the bent surface.
[0025] Example 2, as Figs. 1-3As shown, the top of the conveying table 1 is provided with a conveying groove 4, the conveying plate 5 is slidably arranged in the conveying groove 4, the top of the conveying table 1 is fixed with an electric sliding rail 8 near the other side edge, the top of the conveying plate 5 is fixed with a connecting piece 7 at one corner, one end of the connecting piece 7 is connected to the electric sliding rail 8, the top of the conveying plate 5 is provided with an arc-shaped limiting opening 9, the top of the conveying plate 5 is fixed with an arc-shaped supporting block 6 near one end edge, the arc-shaped supporting block 6 is internally provided with an electric control magnet 14, the front end of the conveying table 1 is fixed with a side frame 10, the side frame 10 is internally fixed with a buffer damper 11, one end of the buffer damper 11 is fixed to the conveying plate 5, the bottom surface of the conveying groove 4 is provided with a sliding groove 12, and the bottom of the conveying plate 5 is fixed with a sliding block 13 which is slidably connected to the inside of the sliding groove 12.
[0026] The effect achieved by the whole embodiment 2 is that when the plate spring is conveyed, the plate spring is first placed on the conveying plate 5, the plate spring is constrained through the arc-shaped limiting opening 9 provided on the top of the conveying plate 5, at the same time, the plate spring is in close contact with the arc surface of the arc-shaped supporting block 6 on one side, and the plate spring is supported by the arc-shaped supporting block 6, then one end of the plate spring is attracted by the electric control magnet 14, and then the conveying plate 5 can be driven to slide by starting the electric sliding rail 8, when the plate spring ear is separated during the process of conveying the plate spring, the impact on the conveying plate 5 can be reduced by the buffer damper 11.
[0027] Working principle: install the U-shaped frame 15 on the output end of the motor 3, and install slots 16 at the four corners inside the U-shaped frame 15, then set the four installation grooves 16 inside the bending roller 17, so that when the end of the plate spring to be bent extends to the inside of the U-shaped frame 15, the bending roller 17 is in close contact with the end of the plate spring, and as the motor 3 rotates, the end of the plate spring is bent, thereby forming an ear, and the bending roller 17 contacts the plate spring, which can press the outer surface of the bending part when the plate spring is bent at the edge, avoiding the internal stress from spreading outward to cause the bending surface to crack, when the plate spring is conveyed, the plate spring is first placed on the conveying plate 5, the plate spring is constrained by the arc-shaped limiting opening 9 provided on the top of the conveying plate 5, at the same time, the plate spring is in close contact with the arc surface of the arc-shaped supporting block 6 on one side, and the plate spring is supported by the arc-shaped supporting block 6, then one end of the plate spring is attracted by the electric control magnet 14, and then the conveying plate 5 can be driven to slide by starting the electric sliding rail 8, when the plate spring ear is separated during the process of conveying the plate spring, the impact on the conveying plate 5 can be reduced by the buffer damper 11.
[0028] The utility model is not limited to the above-mentioned embodiment, any person should know the structure change made under the inspiration of the utility model, any technical scheme with the same or similar to the utility model falls into the protection scope of the utility model. The utility model is not described in detail the technology, shape, structure part is the known technology.
Claims
1. A loop ear device for the production of automotive leaf springs, which facilitates the elimination of stresses, comprising a conveyor table (1), characterized in that: The top of the conveying table (1) is fixed with a side plate (2) near one side edge, the inside of the side plate (2) is fixed with a motor (3), the output end of the motor (3) is fixed with a U-shaped frame (15), the inside of the four corners of the U-shaped frame (15) is provided with a mounting groove (16), the inside of the four mounting grooves (16) is rotatably provided with a bending pressure roller (17), the bottom of the four bending pressure rollers (17) is correspondingly extended to the inside edge of the U-shaped frame (15).
2. A loop end device for the production of a stress-relieved automotive leaf spring according to claim 1, characterized in that: The top of the conveying table (1) is provided with a conveying groove (4), the inside of the conveying groove (4) is slidably provided with a conveying plate (5).
3. The loop end device for the production of a stress-relieved automotive leaf spring according to claim 2, characterized in that: The top of the conveying table (1) is fixed with an electric sliding rail (8) near the other side edge, one end of the electric sliding rail (8) is connected with the conveying plate (5).
4. The eyeletting device for stress-relief of an automobile leaf spring according to claim 3, wherein: The top of the conveying plate (5) is provided with an arc-shaped limiting opening (9), the top of the conveying plate (5) is fixed with an arc-shaped supporting block (6) near one end edge, the inside of the arc-shaped supporting block (6) is provided with an electric control magnet (14).
5. The loop end device for the production of a stress-relieved automotive leaf spring according to claim 4, characterized in that: The front end of the conveying table (1) is fixed with a side frame (10), the inside of the side frame (10) is fixed with a buffer damper (11), one end of the buffer damper (11) is fixed on the conveying plate (5).
6. A loop end attachment device for stress relieving of an automobile leaf spring according to claim 5, wherein: The inside bottom surface of the conveying groove (4) is provided with a sliding groove (12), the bottom of the conveying plate (5) is fixed with a sliding block (13), the sliding block (13) is slidably connected in the inside of the sliding groove (12).