Portable steel plate chamfering machine for steel plate spring processing

The portable steel plate chamfering machine, with its handheld design, solves the problems of inconvenience and high cost in traditional steel plate spring chamfering, achieving safe and efficient chamfering.

CN224425111UActive Publication Date: 2026-06-30JINAN FANGDA REBOUND AUTOMOBILE SUSPENSION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINAN FANGDA REBOUND AUTOMOBILE SUSPENSION CO LTD
Filing Date
2025-03-31
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional leaf springs require separate equipment for chamfering after assembly, which is inconvenient and increases processing costs.

Method used

Design a portable steel plate beveling machine, including a protective handle, a beveling grinding disc and a drive motor, combined with a protective guard to achieve handheld beveling and grinding, prevent debris from flying and provide operational protection.

Benefits of technology

It simplifies the chamfering process, improves ease of operation, reduces costs, avoids injury to operators from debris, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224425111U_ABST
    Figure CN224425111U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of steel leaf spring processing technology, specifically disclosing a portable steel plate chamfering machine for processing steel leaf springs. It includes a protective handle and a chamfering assembly installed at one end of the protective handle for chamfering the edges of the steel plate. The protective handle has an internal receiving groove. The chamfering assembly includes a chamfering grinding disc rotatably connected to one end of the protective handle and a drive motor detachably installed in the receiving groove near the end of the chamfering grinding disc for rotating the grinding disc. The chamfering grinding disc is coaxially connected to the output end of the drive motor. A protective shield is installed on the periphery of the end of the protective handle near the chamfering grinding disc to block debris generated during chamfering. This solves the problem of traditional steel leaf springs requiring separate equipment for chamfering after assembly, which is inconvenient and increases processing costs.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of steel leaf spring processing technology, and specifically discloses a portable steel plate chamfering machine for processing steel leaf springs. Background Technology

[0002] The leaf spring in a car, also known as a leaf spring, is an elastic beam with approximately equal strength, composed of multiple alloy spring leaves of unequal length and curvature.

[0003] The production and processing of automotive leaf springs mainly includes processes such as blanking, drilling, earing, quenching, tempering, shot peening, assembly, pre-pressing, and painting. Due to the structural characteristics of steel plates, after the leaf springs are formed, their edges and corners need to be chamfered and ground to facilitate transport and disassembly. Existing leaf spring production uses chamfering machines; however, because leaf springs are relatively heavy after assembly, setting up a separate chamfering platform for surface treatment is not only inconvenient and increases processing costs, but also affects the overall production progress, significantly reducing production efficiency. Therefore, the inventor has provided a portable leaf spring chamfering machine to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to solve the problem that traditional steel leaf springs require separate equipment for chamfering after assembly, which is inconvenient and increases processing costs.

[0005] To achieve the above objectives, the basic solution of this utility model provides a portable steel plate chamfering machine for processing steel leaf springs, including a protective handle and a chamfering assembly installed at one end of the protective handle for chamfering the edges of the steel plate. The protective handle has a receiving groove inside. The chamfering assembly includes a chamfering grinding disc rotatably connected to one end of the protective handle and a drive motor detachably installed in the receiving groove near the end of the chamfering grinding disc for driving the chamfering grinding disc to rotate. The chamfering grinding disc is coaxially connected to the output end of the drive motor. A protective cover is installed on the periphery of the end of the protective handle near the chamfering grinding disc to block the debris generated during chamfering.

[0006] The principle and effect of this basic scheme are as follows:

[0007] 1. Compared with the prior art, this utility model facilitates the chamfering and grinding of steel plate edges by setting a chamfering grinding disc and a drive motor. The protective handle facilitates the installation and housing of the chamfering components. The protective cover installed on the side of the protective handle provides protection for the operator, preventing steel plate debris generated during the chamfering and grinding process from flying towards the operator and causing personal injury. The handheld chamfering and grinding method has a simple structure and is easy to use. It solves the problem that traditional steel plate springs require separate equipment for chamfering after assembly, which is inconvenient to operate and increases processing costs.

[0008] Furthermore, the chamfering grinding disc includes a grinding disc body for chamfering, a fixed shaft with one end located on one side of the middle portion of the grinding disc body, and a connecting seat detachably connected to the end of the protective handle via threaded fasteners. The end of the fixed shaft is rotatably connected to the connecting seat, and the end of the fixed shaft is coaxially engaged with the output shaft of the drive motor. By setting the fixed shaft and the connecting seat, it is convenient to limit and fix the axial position of the grinding disc body on the protective handle. By setting the fixed shaft and the drive motor to be coaxially engaged, it is convenient to use the drive motor to drive the fixed shaft and the grinding disc body to rotate. At the same time, it is also convenient to change the chamfering grinding disc of different specifications according to the chamfering processing requirements of the steel plate.

[0009] Furthermore, the end face of the fixed shaft is provided with a locking groove, and the output shaft of the drive motor is provided with a locking block, which is detachably locked to the locking groove. By setting the locking block and the locking groove to lock together, the purpose of the drive motor driving the grinding disc body to rotate is achieved.

[0010] Furthermore, a heat dissipation mesh is detachably installed at the end of the protective handle away from the chamfering grinding disc. The heat dissipation mesh has a wiring slot for accommodating the wiring of the drive motor. By setting up the heat dissipation mesh, a heat dissipation channel is provided for the drive motor installed inside the receiving slot, which facilitates the protection of the structure. By setting up the heat dissipation slot, normal power supply and use of the drive motor are ensured.

[0011] Furthermore, the protective handle has uniformly distributed anti-slip textures on the circumference of the protective cover on the side away from the chamfered grinding disc. By providing these anti-slip textures, the contact friction between the operator's hand and the protective handle is increased, making the operator more stable when operating the protective handle.

[0012] Furthermore, the protective cover is a transparent acrylic sheet structure. By using a transparent material for the protective cover, the operator's field of vision is prevented from obstructing the observation of the chamfering process of the steel plate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of a portable steel plate chamfering machine for processing steel plate springs according to an embodiment of this application is shown. Detailed Implementation

[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0016] The reference numerals in the accompanying drawings include: 1. Protective handle; 2. Receiving groove; 3. Chamfered grinding disc; 4. Drive motor; 5. Protective cover; 6. Grinding disc body; 7. Connecting seat; 8. Threaded fastener; 9. Snap-fit ​​groove; 10. Locking block; 11. Heat dissipation mesh; 12. Wiring through groove; 13. Anti-slip texture.

[0017] A portable steel plate chamfering machine for processing steel leaf springs, implementing, for example... Figure 1 As shown: It includes a protective handle 1 and a chamfering assembly installed at one end of the protective handle 1 for chamfering the edges of the steel plate. The protective handle 1 has a receiving groove 2 inside. The chamfering assembly includes a chamfering grinding disc 3 rotatably connected to one end of the protective handle 1 and a drive motor 4 detachably installed in the receiving groove 2 near the end of the chamfering grinding disc 3 for driving the chamfering grinding disc 3 to rotate. The chamfering grinding disc 3 is coaxially connected to the output end of the drive motor 4. A protective cover 5 is installed on the periphery of the end of the protective handle 1 near the chamfering grinding disc 3 to block the debris generated during chamfering.

[0018] The chamfering grinding disc 3 includes a grinding disc body 6 for chamfering, a fixed shaft with one end located on one side of the middle part of the grinding disc body 6, and a connecting seat 7 that is detachably connected to the end of the protective handle 1 via a threaded fastener 8. The end of the fixed shaft is rotatably connected to the connecting seat 7, and the end of the fixed shaft is coaxially engaged with the output shaft of the drive motor 4.

[0019] Among them, such as Figure 1 As shown, the end face of the fixed shaft is provided with a snap-fit ​​groove 9, and the output shaft of the drive motor 4 is provided with a snap-fit ​​block 10. The snap-fit ​​block 10 and the snap-fit ​​groove 9 are detachably snap-fitted together.

[0020] Among them, such as Figure 1As shown, a heat dissipation mesh 11 is detachably installed on the end of the protective handle 1 away from the chamfering grinding disc 3. The heat dissipation mesh 11 is provided with a wiring slot 12 that can accommodate the wiring of the drive motor 4 for power supply.

[0021] Among them, such as Figure 1 As shown, the protective handle 1 is provided with anti-slip texture 13 evenly on the periphery of the protective cover 5 on the side away from the chamfered grinding disc 3.

[0022] Among them, such as Figure 1 As shown, the protective shield 5 is a transparent acrylic sheet structure.

[0023] In the specific implementation of this utility model, the required chamfering grinding disc 3 is first selected, and the locking groove 9 of the fixed shaft is aligned with the locking block on the output shaft side of the drive motor 4. Then, the connecting seat 7 of the chamfering grinding disc 3 is fastened to the front end of the protective handle 1 using threaded fasteners 8. In use, the operator only needs to hold the end of the protective handle 1 with anti-slip texture 13, and then power on the drive motor 4 to chamfer and grind the edges of the steel plate that needs to be chamfered. On the one hand, during the chamfering process, the steel plate debris generated during processing splashes, and some of it splashes towards the side where the operator is, but it is blocked in front of the protective cover 5; on the other hand, the heat generated during the operation of the drive motor 4 is dissipated to the outside through the heat dissipation mesh 11 at the rear end of the protective handle 1.

[0024] Compared with the prior art, this utility model facilitates the chamfering and grinding of steel plate edges by setting up a chamfering grinding disc 3 and a drive motor 4. It also facilitates the installation and housing of the chamfering components by setting up a protective handle 1. The protective cover 5 installed on the side of the protective handle 1 provides protection for the operator and avoids the injury caused by steel plate debris flying towards the operator during the chamfering and grinding process. The handheld chamfering and grinding method has a simple structure and is easy to use. It solves the problem that traditional steel plate springs require separate equipment for chamfering after assembly, which is inconvenient to operate and increases processing costs.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A portable leaf chamfering machine for leaf spring machining, characterized by: The device includes a protective handle and a chamfering assembly installed at one end of the protective handle for chamfering the edges of a steel plate. The protective handle has an internal receiving groove. The chamfering assembly includes a chamfering grinding disc rotatably connected to one end of the protective handle and a drive motor detachably installed in the receiving groove near the end of the chamfering grinding disc for rotating the chamfering grinding disc. The chamfering grinding disc is coaxially connected to the output end of the drive motor. A protective shield is installed on the periphery of the end of the protective handle near the chamfering grinding disc to block the debris generated during chamfering.

2. The portable steel plate chamfering machine for processing steel leaf springs according to claim 1, characterized in that, The chamfering grinding disc includes a grinding disc body for chamfering, a fixed shaft with one end located on one side of the middle part of the grinding disc body, and a connecting seat that is detachably connected to the end of the protective handle by a threaded fastener. The end of the fixed shaft is rotatably connected to the connecting seat, and the end of the fixed shaft is coaxially engaged with the output shaft of the drive motor.

3. A portable steel plate chamfering machine for processing steel leaf springs according to claim 2, characterized in that, The end face of the fixed shaft is provided with a snap-fit ​​groove, and the output shaft of the drive motor is provided with a snap-fit ​​block. The snap-fit ​​block and the snap-fit ​​groove are detachably snap-fitted together.

4. A portable steel plate chamfering machine for processing steel leaf springs according to claim 3, characterized in that, The protective handle is detachably fitted with a heat dissipation mesh at the end away from the chamfering grinding disc. The heat dissipation mesh is provided with a wiring slot that can accommodate the wiring of the drive motor.

5. A portable steel plate chamfering machine for processing steel leaf springs according to claim 4, characterized in that, The protective handle is located on the side of the protective cover away from the chamfered grinding disc, and is uniformly provided with anti-slip texture.

6. A portable steel plate chamfering machine for processing steel leaf springs according to claim 5, characterized in that, The protective shield is a transparent acrylic sheet structure.