Spring coiling machine for one-step forming of return spring of starting shaft of sunken torsion arm
By designing a one-time forming device for the starter shaft return spring coiling machine with a sinking torsion arm, the inner hook structure of the starter shaft return spring is formed in one step using a stamping tool and a motor servo drive system. This solves the problem of multi-step production in traditional coiling machines and improves production efficiency and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN MINGAO SPRING DEV CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional spring coiling machines require multiple steps to manufacture the starter shaft return spring, especially for springs with an internal hook structure. This results in long production time, low yield, low automation, reliance on manual operation, increased costs, and reduced production efficiency.
A one-time forming device for a spring coiling machine with a sinking torsion arm starting shaft return spring was designed. By adding a stamping tool to the positioning component to match the notch opened on the circumference of the forming shaft, and combining it with a motor servo drive system, the inner hook structure of the spring can be formed in one step.
The inner hook structure of the starter shaft return spring is formed in one step, eliminating the need for manual stamping, shortening the production cycle, improving the operational flexibility and applicability of the equipment, and increasing production efficiency.
Smart Images
Figure CN224346867U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of starter shaft return spring processing technology, and in particular relates to a processing device for one-time forming of starter shaft return spring coiling machine for sinking torsion arm. Background Technology
[0002] A starter shaft return spring is a spring used to help mechanical parts return to their original position. Traditional spring coiling machines typically require multiple steps to manufacture starter shaft return springs, especially for springs with special structures (such as internal hook structures). This not only increases production time but can also lead to a decrease in yield, as each additional processing step can introduce errors. To accommodate springs of different specifications, traditional equipment often requires complex mechanical adjustments and calibrations, which not only demands a high level of skill from operators but also significantly increases preparation time and costs. Many existing spring coiling machines have low levels of automation and rely heavily on manual operation, which reduces production efficiency and limits the speed and capacity of the production line.
[0003] To address this issue, we have provided a processing device for one-time forming of the return spring coiling machine for the starting shaft of the sinking torsion arm, in order to solve the problems mentioned above. Utility Model Content
[0004] The purpose of this utility model is to provide a processing device for one-time forming of the starter shaft return spring coiling machine for the sinking torsion arm. By adding a stamping tool to the positioning component and matching it with the notch opened on the circumference of the forming shaft, the functional deficiencies of the existing coiling machine in processing the starter shaft return spring are solved.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a processing device for one-time forming of a spring coiling machine for the return shaft of a sinking torsion arm. It includes a machine plate, a forming component disposed in the middle of the machine plate, a positioning component disposed around the forming component, and a limiting plate and a punching tool adapted to the positioning component. The forming component includes a mounting plate fixed to the middle position of the lower side of the machine plate, a motor fixed to one side of the mounting plate, a drive gear connected to the output shaft of the motor, a vertical rack meshing with the drive gear, and a forming shaft fixed to the top of the vertical rack. The positioning component includes a guide rail disposed around the forming shaft, a guide block slidably mounted on the upper part of the guide rail, and a support plate fixed to the upper side of the guide block. The limiting plate and the punching tool are respectively fixed to the upper side of different support plates, and the front end of the punching tool is adapted to a notch opened on the periphery of the forming shaft.
[0007] The present invention is further configured such that a feeding assembly is provided on the upper side of the machine plate, the feeding assembly including a fixed seat fixed on the upper side of the machine plate and a limiting sleeve installed inside the fixed seat, the steel wire for processing the return spring of the start shaft is passed through the limiting sleeve, and the front end of the steel wire is bent around the forming shaft.
[0008] The present invention is further configured such that the forming shaft passes through the middle position of the machine plate, and a rod-shaped structure is fixed on the upper circumference of the forming shaft, wherein the rod-shaped structure is in contact with the bottom of the formed spring.
[0009] The present invention is further configured such that the front end of the limiting plate contacts the periphery of the formed spring, and the punching tool presses the bottom of the spring into the notch opened on the periphery of the forming shaft.
[0010] The present invention is further configured such that a second motor is fixed on the upper side of the support plate, and a second drive gear is connected to the output end of the second motor. The second drive gear is meshed with a transverse rack, and the transverse rack is fixed on the upper side of the machine plate and arranged parallel to one side of the corresponding guide rail.
[0011] The present invention is further configured such that each of the plurality of motors two and motor one is controlled by an independent motor servo drive system.
[0012] The one-time forming processing device for the starter shaft return spring coiling machine of the sinking torsion arm is applied to the processing of the inner hook structure that sinks inward after the starter shaft return spring is coiled.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model achieves one-time forming of the inward-sinking inner hook structure by setting a punching tool and cooperating with the notch opened on the circumference of the forming shaft, which not only saves the manual stamping process, but also greatly shortens the production cycle.
[0015] 2. By setting a positioning component, the guide block of this utility model slides along the guide rail, so that the limiting plate and the punching tool on the support plate can be flexibly adjusted according to actual needs, adapting to the processing requirements of springs of different specifications, and increasing the operational flexibility and applicability of the equipment.
[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 A schematic diagram of one side of the overall structure of the processing device for the one-time forming of the return spring coiling machine for the starting shaft of the sinking torsion arm.
[0019] Figure 2 A schematic diagram of the other side of the overall structure of the processing device for the one-time forming of the return spring coiling machine for the starting shaft of the sinking torsion arm.
[0020] Figure 3 A schematic diagram of the lower part of the processing device for one-time forming of the return spring coiling machine for the starting shaft of the sinking torsion arm.
[0021] Figure 4 A front view of the overall structure of the processing device for one-time forming of the return spring coiling machine for the starting shaft of the sinking torsion arm.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 100. Machine plate; 200. Feeding assembly; 201. Fixed base; 202. Limiting sleeve; 300. Forming assembly; 301. Mounting plate; 302. Drive gear one; 303. Vertical rack; 304. Forming shaft; 305. Motor one; 400. Positioning assembly; 401. Guide rail; 402. Guide block; 403. Support plate; 404. Motor two; 405. Horizontal rack; 406. Drive gear two; 500. Limiting plate; 600. Punching tool. Detailed Implementation
[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] Example
[0026] Please see Figure 1-4This utility model relates to a processing device for one-time forming of a return spring coiling machine for a sinking torsion arm starting shaft. It includes a machine plate 100, a forming component 300 disposed in the middle of the machine plate 100, a positioning component 400 surrounding the forming component 300, and a limiting plate 500 and a punching tool 600 adapted to the positioning component 400. The forming component 300 includes a mounting plate 301 fixed to the lower middle position of the machine plate 100, a motor 305 fixed to one side of the mounting plate 301, a drive gear 302 connected to the output shaft of the motor 305, a vertical rack 303 meshing with the drive gear 302, and a forming shaft 304 fixed to the top of the vertical rack 303. The positioning component 500... The component 400 includes a guide rail 401 arranged around the forming shaft 304, a guide block 402 slidably adapted to be installed on the upper part of the guide rail 401, and a support plate 403 fixed on the upper side of the guide block 402. The limiting plate 500 and the punching tool 600 are respectively fixed on the upper side of the different support plates 403, and the front end of the punching tool 600 is adapted to the notch opened on the periphery of the forming shaft 304. The forming component 300, the positioning component 400 and the limiting plate 500 form a conventional coil spring structure for the coiling forming of the starter shaft return spring. The added punching tool 600, combined with the notch opened on the forming shaft 304, cooperates to realize the one-time forming processing of the inner hook structure of the starter shaft return spring.
[0027] Specifically, the forming shaft 304 passes through the middle of the machine plate 100, and a rod-shaped structure is fixed on the upper circumference of the forming shaft 304. The rod-shaped structure contacts the bottom of the formed spring, and the rod-shaped structure provides support for the bottom of the spring and assists in the spring's upward movement during the forming process. The front end of the limiting plate 500 contacts the circumference of the formed spring. The punching tool 600 punches the bottom of the spring into the notch opened on the circumference of the forming shaft 304. The limiting plate 500 needs to be adjusted and fixed in the early stage of processing, while the punching tool 600 punches with the forming shaft 304 at the end of the processing of a single spring to complete the stamping forming of the inner hook structure.
[0028] Furthermore, a feeding assembly 200 is provided on the upper side of the machine plate 100. The feeding assembly 200 is used to guide the steel wire into the forming area. The feeding assembly 200 includes a fixed seat 201 fixed on the upper side of the machine plate 100 and a limiting sleeve 202 installed inside the fixed seat 201. The steel wire used for processing the shaft return spring is passed through the limiting sleeve 202, and the front end of the steel wire is bent and formed around the forming shaft 304.
[0029] A second motor 404 is fixed to the upper side of the support plate 403. The output end of the second motor 404 is connected to a second drive gear 406. The second drive gear 406 meshes with a transverse rack 405. The transverse rack 405 is fixed to the upper side of the machine plate 100 and is arranged parallel to one side of the corresponding guide rail 401. Due to the reaction force of the second drive gear 406 on the fixed-position transverse rack 405, the second motor 404 adjusts the position of the support plate 403 through the second drive gear 406. This is used to adjust the distance between the corresponding limit plate 500 or the punching tool 600 on the support plate 403 and the spring. The multiple second motors 404 and the first motor 305 are all controlled by an independent motor servo drive system to achieve high-precision position control of the limit plate 500 and the punching tool 600, ensuring stable spring forming while also ensuring precise spring stamping.
[0030] The operation process of this embodiment is as follows: The one-time forming processing device for the starter shaft return spring coiling machine of the sinking torsion arm is applied to the one-time forming of the inner hook structure of the starter shaft return spring after it is machine-coiled. When using the one-time forming processing device for the starter shaft return spring coiling machine of the sinking torsion arm, the steel wire used to make the starter shaft return spring is first guided into the forming area by the limiting sleeve 202 in the feeding assembly 200. As the front end of the steel wire bends and forms around the forming shaft 304, the motor 305 starts to work, and the drive gear 302 drives the vertical rack 303 to move up and down, thereby causing the forming shaft 304 to move according to the set action mode to complete the basic winding and forming of the spring. During the winding stage, the limiting plate 500 is used to limit the spring on the one hand, and to cooperate with the forming shaft 304 to form a winding channel on the other hand. After the spring is completely wound and formed, the punching tool 600, under the precise control of the motor servo drive system, punches the bottom of the spring into the notch on the periphery of the forming shaft 304, completing the one-time forming processing of the inner hook structure of the starter shaft return spring.
[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A processing device for one-time forming of a return spring coiling machine for a sinking torsion arm, comprising a machine plate (100), a forming component (300) disposed in the middle of the machine plate (100), a positioning component (400) disposed around the forming component (300), and a limiting plate (500) and a punching tool (600) adapted to the positioning component (400); characterized in that: The forming assembly (300) includes a mounting plate (301) fixed to the middle position of the lower side of the machine plate (100), a motor (305) fixed to one side of the mounting plate (301), a drive gear (302) connected to the output shaft of the motor (305), a vertical rack (303) meshing with the drive gear (302), and a forming shaft (304) fixed to the top of the vertical rack (303); the positioning assembly (400) includes a guide rail (401) arranged around the forming shaft (304), a guide block (402) slidably adapted to be installed on the upper part of the guide rail (401), and a support plate (403) fixed to the upper side of the guide block (402). The limiting plate (500) and the punching tool (600) are respectively fixed to the upper side of different support plates (403), and the front end of the punching tool (600) is adapted to the notch opened on the periphery of the forming shaft (304).
2. The processing device for one-time forming of the return spring coiling machine for the sinking torsion arm's starting shaft as described in claim 1, characterized in that, The upper side of the machine plate (100) is provided with a feeding assembly (200), which includes a fixed seat (201) fixed on the upper side of the machine plate (100) and a limiting sleeve (202) installed inside the fixed seat (201). The steel wire for processing the start shaft return spring is passed through the limiting sleeve (202), and the front end of the steel wire is bent around the forming shaft (304).
3. The processing device for one-time forming of the return spring coiling machine for the sinking torsion arm's starting shaft as described in claim 1, characterized in that, The forming shaft (304) is inserted through the middle of the machine plate (100), and a rod-shaped structure is fixed on the upper circumference of the forming shaft (304), and the rod-shaped structure is in contact with the bottom of the formed spring.
4. The processing device for one-time forming of the return spring coiling machine for the sinking torsion arm's starting shaft as described in claim 1, characterized in that, The front end of the limiting plate (500) contacts the periphery of the formed spring, and the punching tool (600) punches the bottom of the spring into the notch opened on the periphery of the forming shaft (304).
5. The processing device for one-time forming of the return spring coiling machine for the sinking torsion arm's starting shaft according to claim 1, characterized in that, A second motor (404) is fixed on the upper side of the support plate (403). The output end of the second motor (404) is connected to a second drive gear (406). The second drive gear (406) is meshed with a transverse rack (405). The transverse rack (405) is fixed on the upper side of the machine plate (100) and is arranged parallel to one side of the corresponding guide rail (401).
6. The processing device for one-time forming of the return spring coiling machine for the sinking torsion arm's starting shaft according to claim 5, characterized in that, Each of the two motors (404) and the first motor (305) is controlled by an independent motor servo drive system.