Spring cutting mechanism
By using a servo motor-driven crank system and clamping ring, the problem of unstable spring cutting was solved, achieving stable spring cutting and improving cutting efficiency and accuracy.
Patent Information
- Application Number
- CN202520601190.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Existing spring production and cutting mechanisms are prone to problems such as unstable cutting and twisting at the spring cutting point due to the inability to fix the spring in place.
A servo motor-driven crank system, combined with a clamp and a cutting blade, achieves stable cutting of the spring through the cooperation of a clamping ring and a moving rod. The combination of a guide rod and a spring maintains stability during the cutting process.
This achieves stable cutting with a spring, avoids twisting at the cutting point, and improves cutting efficiency and precision.
Smart Images

Figure CN223960475U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spring technology, and in particular to a spring cutting mechanism. Background Technology
[0002] A spring is a device that generates energy by changing its shape under the action of an external force. Generally, the change in shape is directly related to the magnitude of the applied force. However, if a large force is applied, the spring will be permanently deformed and will not return to its original shape.
[0003] The process of manufacturing helical springs involves taking spring material, shaping it into finished springs, and then sequentially processing them through various stages. Depending on the spring material, type, and processing method, the manufacturing process for helical springs varies.
[0004] When producing springs, they need to be cut. However, existing spring production cutting mechanisms are prone to problems such as the spring not being able to be fixed in place, resulting in the spring not being cut completely and the cut part of the spring being easily twisted. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides a new technical solution for a spring cutting mechanism, which solves the deficiencies in the background technology.
[0006] The objective of this utility model is achieved as follows: According to a first aspect of this utility model, a spring cutting mechanism is provided, comprising a driving assembly and a cutting assembly; the driving assembly includes a servo motor and a crank arm;
[0007] The cutting assembly includes a push rod, the front end of which is connected to a clamp and an adjusting component. A cutting blade is clamped and installed inside the clamp. Movable rods are provided on both sides of the clamp and the cutting blade, and a clamping ring is fixedly provided at the end of the movable rod.
[0008] Optionally, the output end of the servo motor is connected to a turntable, and one end of the crank is eccentrically and movably connected to the turntable.
[0009] Optionally, one end of the push rod is movably connected to one end of the crank rod via a pin, the end of the push rod is fixedly connected to the adjusting member, and one side of the adjusting member is fixedly connected to the clamp.
[0010] Optionally, the mounting plate is also included. Positioning blocks are fixedly provided at both ends of the mounting plate. A guide rod is fixedly installed between the upper and lower positioning blocks. A limiting groove is fixedly installed in the middle of one side of the mounting plate. A limiting block that slides inside the limiting groove is fixedly provided on the back of the push rod, the adjusting member, and the clamp.
[0011] Optionally, a connecting block is fixedly provided at one end of the movable rod, and an adjustment groove is provided inside the connecting block. The guide rod is movably located inside the adjustment groove, and a first spring and a second spring are respectively sleeved at both ends of the guide rod. One end of the first spring and the second spring are respectively connected to both sides of the connecting block.
[0012] Optionally, a connecting groove is provided on the outer end face of the movable rod, and a positioning ball head rod is fixedly connected to the inner side of the positioning block at one end, with the ball head at the end of the positioning ball head rod movably connected inside the connecting groove.
[0013] Optionally, the adjusting member has inclined end faces on both sides, a connecting wing is fixedly provided at the tail end of the adjusting member, the connecting wing is movably connected to the guide rod, one end of the second spring is fixedly connected to one side of the connecting wing, and one end of the connecting block is movably attached to the inclined end face.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the servo motor and turntable drive the crank to rotate, thereby enabling the crank to push and adjust the push rod, which in turn allows the push rod to move and adjust via the clamp and cutting blade, thus achieving the cutting of the spring; and in order to maintain the stability of the spring during cutting, the spring is clamped and fixed by the moving rod and clamping ring, maintaining the stability of the spring during the cutting process, thereby enabling the cutting blade to quickly and effectively cut the spring;
[0015] It is equipped with a guide rod and a first spring and a second spring. The first spring and the second spring are used to guide and push the moving rod in a secondary manner, so that after the clamping ring clamps and fixes the spring, the cutting blade can move continuously, which is convenient for cutting the spring. The setting of the adjustment component is convenient for pushing and adjusting the connecting block, so that the moving rod and the clamping ring can be adjusted at the angle under the positioning action of the positioning ball head rod, which is convenient for the clamping ring to clamp and fix the spring. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a front structural diagram of the cutting component of this utility model.
[0019] Figure 3 This is a schematic diagram of the back structure of the cutting component of this utility model.
[0020] Figure 4 This is a partial structural schematic diagram of the present invention.
[0021] The following are labeled in the diagram: 1. Servo motor; 2. Turntable; 3. Crank rod; 4. Push rod; 5. Fixture; 6. Cutting blade; 7. Moving rod; 8. Clamping ring; 9. Adjusting component; 10. Connecting wing; 11. Inclined end face; 12. Connecting block; 13. Adjusting groove; 14. Guide rod; 15. First spring; 16. Second spring; 17. Limiting block; 18. Connecting groove; 19. Positioning ball joint rod; 20. Mounting plate; 21. Positioning block; 22. Limiting groove strip; 23. Pin. Detailed Implementation
[0022] 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.
[0023] like Figure 1-4 The spring-cutting mechanism shown includes a drive assembly and a cutting assembly; the drive assembly includes a servo motor 1 and a crank 3.
[0024] The cutting assembly includes a push rod 4, with a clamp 5 and an adjusting member 9 connected to the front end of the push rod 4. A cutting blade 6 is clamped and installed inside the clamp 5. Moving rods 7 are provided on both sides of the clamp 5 and the cutting blade 6. A clamping ring 8 is fixedly provided at the end of the moving rod 7.
[0025] In this embodiment, preferably, the output end of the servo motor 1 is connected to the turntable 2, and one end of the crank 3 is eccentrically and movably connected to the turntable 2;
[0026] It should be noted that the servo motor 1 drives the turntable 2 to rotate, and the turntable 2 is adjusted by the crank rod 3 connected eccentrically to the push rod 4 to achieve distance adjustment.
[0027] In this embodiment, preferably, one end of the push rod 4 is movably connected to one end of the crank rod 3 via a pin 23, and an adjusting member 9 is fixedly connected to the end of the push rod 4, with a clamp 5 fixedly connected to one side of the adjusting member 9;
[0028] It should be noted that the setting of the pin 23 facilitates the connection between the push rod 4 and the crank rod 3, enabling the push rod 4 to move and be adjusted, and the clamp 5 is connected through the adjusting part 9, and the clamp 5 facilitates the clamping and fixing of the cutting blade 6.
[0029] In this embodiment, preferably, it also includes a mounting plate 20, with positioning blocks 21 fixedly provided at both ends of the mounting plate 20, a guide rod 14 fixedly installed between the upper and lower positioning blocks 21, a limiting groove 22 fixedly installed in the middle of one side of the mounting plate 20, and a limiting block 17 that slides inside the limiting groove 22 fixedly provided on the back of the push rod 4, the adjusting member 9 and the clamp 5.
[0030] It should be noted that the mounting plate 20 and the positioning block 21 are designed to facilitate the installation of the guide rod 14, and can limit the push rod 4, the adjusting member 9 and the clamp 5 through the limiting groove 22 and the limiting block 17 to maintain balance and stability. In addition, the mounting plate 20 facilitates the installation of the cutting assembly.
[0031] In this embodiment, preferably, a connecting block 12 is fixedly provided at one end of the moving rod 7, and an adjustment groove 13 is provided inside the connecting block 12. The guide rod 14 is movably located inside the adjustment groove 13, and a first spring 15 and a second spring 16 are respectively sleeved at both ends of the guide rod 14. One end of the first spring 15 and the second spring 16 are respectively connected to both sides of the connecting block 12.
[0032] It should be noted that the connection block 12 and the adjustment groove 13 are designed to facilitate connection with the guide rod 14, and the first spring 15 and the second spring 16 are designed to support the connection block 12 and maintain its stability.
[0033] In this embodiment, preferably, a connecting groove 18 is provided on the outer end face of the moving rod 7, and a positioning ball head rod 19 is fixedly connected to the inner side of the positioning block 21 at one end, and the ball head at the end of the positioning ball head rod 19 is movably connected to the inside of the connecting groove 18.
[0034] It should be noted that the design of the connecting groove 18 and the positioning ball joint 19 facilitates the stability of the moving rod 7, maintaining balance and allowing for rotation when adjusting the angle.
[0035] In this embodiment, preferably, the adjusting member 9 has inclined end faces 11 on both sides, the tail end of the adjusting member 9 is fixedly provided with a connecting wing 10, the connecting wing 10 is movably connected to the guide rod 14, one end of the second spring 16 is fixedly connected to one side of the connecting wing 10, and one end of the connecting block 12 is movably attached to the inclined end face 11.
[0036] It should be noted that the inclined end face 11 is designed to facilitate the pushing and adjustment of the connecting block 12, and the connecting wing 10 can be used for limiting and blocking, so that when the moving rod 7 is pushed, a two-stage pushing adjustment can be achieved.
[0037] The specific operational steps for this application are as follows:
[0038] When springs are being produced, the formed springs need to be cut to facilitate continuous spring production. During the cutting process, the turntable 2 is rotated by the servo motor 1, and then the turntable 2 moves and is adjusted by the push rod 4 via the crank 3.
[0039] When the push rod 4 moves, it can move via the adjusting member 9 and the clamp 5. The clamp 5 is equipped with a cutting blade 6 to facilitate the cutting of the produced spring. The guide rod 14 is set so that the moving rod 7 and the connecting block 12 can be pushed and adjusted by the second spring 16. When the connecting block 12 moves to the end, the first spring 15 is compressed and pushes the push rod 4, so that the connecting block 12 can move on the inclined end face 11. This allows the clamping ring 8 to clamp the produced spring and maintain its stability. Then, the continuously pushed cutting blade 6 can cut the spring.
[0040] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A spring-loaded cutting mechanism, characterized in that: It includes a drive assembly and a cut-off assembly; the drive assembly includes a servo motor (1) and a crank (3). The cutting assembly includes a push rod (4), the front end of which is connected to a clamp (5) and an adjusting member (9). A cutting blade (6) is clamped and installed inside the clamp (5). Moving rods (7) are provided on both sides of the clamp (5) and the cutting blade (6). A clamping ring (8) is fixedly provided at the end of the moving rod (7).
2. The spring cutting mechanism according to claim 1, characterized in that: The output end of the servo motor (1) is connected to a turntable (2), and one end of the crank (3) is eccentrically connected to the turntable (2).
3. The spring cutting mechanism according to claim 1, characterized in that: One end of the push rod (4) is movably connected to one end of the crank rod (3) via a pin (23). The end of the push rod (4) is fixedly connected to the adjusting member (9), and one side of the adjusting member (9) is fixedly connected to the clamp (5).
4. The spring cutting mechanism according to claim 1, characterized in that: It also includes a mounting plate (20), with positioning blocks (21) fixedly installed at both ends of the mounting plate (20), and a guide rod (14) fixedly installed between the upper and lower positioning blocks (21). A limiting groove (22) is fixedly installed in the middle of one side of the mounting plate (20), and a limiting block (17) that slides inside the limiting groove (22) is fixedly installed on the back of the push rod (4), the adjusting member (9) and the clamp (5).
5. A spring-cutting mechanism according to claim 4, characterized in that: One end of the moving rod (7) is fixedly provided with a connecting block (12), and the connecting block (12) has an adjustment groove (13) inside. The guide rod (14) is movably located inside the adjustment groove (13). The two ends of the guide rod (14) are respectively sleeved with a first spring (15) and a second spring (16). One end of the first spring (15) and the second spring (16) are respectively connected to both sides of the connecting block (12).
6. A spring-cutting mechanism according to claim 4, characterized in that: The outer end face of the moving rod (7) is provided with a connecting groove (18), and the inner side of the positioning block (21) at one end is fixedly connected with a positioning ball head rod (19), and the ball head at the end of the positioning ball head rod (19) is movably connected to the inside of the connecting groove (18).
7. A spring-cutting mechanism according to claim 5, characterized in that: The adjusting member (9) has inclined end faces (11) on both sides. The tail end of the adjusting member (9) is fixedly provided with a connecting wing (10). The connecting wing (10) is movably connected to the guide rod (14). One end of the second spring (16) is fixedly connected to one side of the connecting wing (10). One end of the connecting block (12) is movably attached to the inclined end face (11).