A reinforcing structure for a spring

By designing a movable mold core and a secondary positioning structure, the problem of inaccurate positioning of the conical spring was solved, achieving precise reinforcement processing and improving the adaptability and processing effect of the equipment.

CN224673696UActive Publication Date: 2026-08-25FUZHOU CHANGRONG SPRING
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Patent Information

Application Number
CN202522064980.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2026-08-25
Estimated Expiration
2035-09-25

AI Technical Summary

Technical Problem

Existing equipment has low positioning accuracy and poor adaptability when processing irregularly shaped springs, especially conical springs, and is prone to positioning deviations.

Method used

A reinforced structure including a movable mold core and a second mold was designed. The top of the mold core is frustum-shaped, and secondary positioning is achieved by combining the protrusion and the alignment hole. The hook rod and adjusting bolt are used to ensure the accurate position of the mold core, and the cylinder and motor are used to achieve precise pressing.

Benefits of technology

It achieves precise positioning of the conical spring, prevents top displacement, improves processing accuracy and adaptability, and avoids plastic deformation and permanent damage caused by excessive compression.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of reinforcing treatment structure for spring, including being arranged on the positioning hole of several circumferential directions in carousel, first mould is installed in each positioning hole, second mould further includes, spring to be handled is placed in first mould, second mould and first mould contact extrude spring or separate;The utility model is designed with a movable mould core according to conical spring, mould core can adjust position in the cavity of first mould, mould core one-time positioning function is mould core circular table structure, the first inclined surface of mould core top is just adapted to conical spring, realizes first positioning, determines the position of conical spring, secondary positioning is inserted using protruding portion and alignment hole, realizes the mould core of first mould and second mould cooperation and separation, protruding portion and alignment hole are all in conical spring middle, second positioning mode, determine the center of conical spring, prevent its top from deviating, when pressing, conical spring is moderately pressed.
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Description

Technical Field

[0001] This utility model relates to a reinforcement structure for springs, belonging to the field of spring manufacturing equipment. Background Technology

[0002] Spring strengthening treatment is a process that improves the mechanical properties of spring materials, such as increasing strength, toughness, and fatigue life, or optimizing the surface condition of the spring, thereby enhancing its load-bearing capacity, resistance to deformation, and service life. Among these processes, the standing treatment machine applies a certain load to the spring and holds it for a period of time to eliminate residual stress and stabilize the dimensions and performance of the spring.

[0003] However, this equipment has the following drawbacks in the vertical positioning of irregularly shaped springs: it has poor adaptability to irregularly shaped springs and is prone to positioning deviations, especially for conical springs, because the upper mold pressure head of this equipment is a fixed-size universal shape, resulting in low positioning accuracy.

[0004] Therefore, this utility model provides a reinforced structure suitable for conical springs and with accurate positioning. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a reinforced structure that is suitable for conical springs and has accurate positioning.

[0006] This utility model is implemented as follows: A reinforcement structure for springs includes a plurality of positioning holes arranged in a circumferential direction on a turntable, and a first mold is installed in each positioning hole. The present invention also includes a second mold. The spring to be processed is placed in the first mold, and the second mold contacts the first mold to compress or separate the spring. The first mold includes a first mold base installed in the positioning hole, and the internal space of the first mold base is a cavity; the first mold also includes a mold core that can move up and down in the cavity, and the top of the mold core is frustum-shaped, and an alignment hole is opened at the center of the top surface of the mold core; The second mold includes a protrusion located on one end face of the second mold and inserted into the alignment hole at the top of the first mold, so that the mold core of the first mold and the second mold are detachably and fixedly connected.

[0007] As a further improvement, an annular protrusion is provided on the inner wall of the top end of the alignment hole.

[0008] As a further improvement, the present invention also includes a hook rod used in conjunction with the mold core, one end of which is provided with a bent portion so that when the hook rod extends into the alignment hole of the mold core, it engages with the annular protrusion, thereby driving the mold core or the first mold as a whole to rise.

[0009] As a further improvement, the outer surface of the mold core is provided with several adjustment holes, which are divided into two groups and arranged symmetrically. The present invention also includes an adjustment bolt, which passes through the outside of the first mold base and is threadedly connected to the adjustment hole of the mold core.

[0010] As a further improvement, the mold core includes a first inclined surface, the angle A between the first inclined surface and the horizontal line being 90-160°.

[0011] As a further improvement, the vertical height of the first inclined surface of the mold core is greater than 0.2 cm.

[0012] As a further improvement, the present invention also includes a cylinder for controlling the operation of the grinding head, the cylinder being located directly above the first mold, and the output end of the cylinder being mechanically connected to the second mold.

[0013] As a further improvement, the present invention also includes a machine base, a rotating shaft, and a motor. The turntable is mounted on the machine base, and one end of the rotating shaft is fixed in the center of the turntable, while the other end passes through the top surface of the machine base and is fixed to the output end of the motor located inside the machine base.

[0014] The beneficial effects of this utility model are: compared with traditional molds, this utility model designs a movable mold core based on a conical spring. The position of the mold core can be adjusted in the cavity of the first mold. The distance between the bottom end of the first inclined surface of the mold core and the top surface of the first mold or the top surface of the mold core is the limit height of the conical spring in the working state.

[0015] The structural design of this utility model mold core features secondary positioning. The primary positioning is achieved by the mold core's frustum-shaped structure, with the first inclined surface at the top of the mold core perfectly matching the conical spring, thus determining the position of the conical spring. The secondary positioning utilizes the protrusion and alignment hole for insertion, enabling the mold core of the first mold to engage and disengage with the second mold. Both the protrusion and the alignment hole are located in the center of the conical spring. Compared to the traditional direct pressing method, this second positioning method determines the center of the conical spring, preventing its top from shifting. During pressing, the conical spring is subjected to moderate pressure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of a planar structure for a spring reinforcement structure provided by an embodiment of the present invention.

[0018] Figure 2 This is a side plan view of a reinforcement structure for springs provided by an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure in the separated state of the first mold and the second mold for the reinforcement treatment structure of a spring provided by this utility model embodiment.

[0020] Figure 4 This is a schematic diagram of the structure of a spring reinforcement structure provided by this utility model under the pressing state of the first mold and the second mold.

[0021] Figure 5 This is a cross-sectional structural diagram of a reinforcement structure for springs provided by an embodiment of the present invention.

[0022] Figure 6 This is a planar schematic diagram of the adjusting mold core position state of a spring reinforcement structure provided by this utility model embodiment.

[0023] Figure 7 This is a schematic diagram of a three-dimensional mold core structure for a spring reinforcement structure provided by an embodiment of the present invention.

[0024] Reference numerals: Turntable 1, First mold 2, Second mold 3, Hook rod 4, Cylinder 5, Machine base 6, Rotating shaft 7, Motor 8, First mold base 201, Cavity 202, Mold core 203, Alignment hole 204, Adjustment hole 211, Protrusion 301, Annular protrusion 241, Adjustment hole 211, Adjustment bolt 212, First inclined surface 231, Positioning hole 101. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Reference Figures 1-7 As shown, this embodiment provides a specific implementation of a reinforcement processing structure for a spring, including a plurality of positioning holes 101 arranged on a turntable 1 along the circumferential direction, each positioning hole being equipped with a first mold 2. The present invention also includes a second mold 3, the spring to be processed is placed in the first mold 2, and the second mold 3 contacts and squeezes or separates from the first mold 2. The first mold 2 includes a first mold base 201 installed in the positioning hole 101, and the internal space of the first mold base 201 is a cavity 202. The first mold 2 also includes a mold core 203 that can move up and down in the cavity 202. The top of the mold core 203 is frustum-shaped, and an alignment hole 204 is opened at the center of the top surface of the mold core 203. More specifically, the bottom end of the mold core 203 contacts the inner wall of the cavity 202 and can move up and down.

[0028] The second mold 3 includes a protrusion 301, which is disposed on one end face of the second mold 3 and is inserted into the alignment hole 204 at the top of the first mold 2, so that the mold core 203 of the first mold 2 is detachably and fixedly connected to the second mold 3.

[0029] In the above technical solution, compared with the traditional mold, the present invention designs a movable mold core 203 based on the conical spring. The mold core 203 can be adjusted in the cavity 202 of the first mold 2. The distance between the bottom end of the first inclined surface 231 of the mold core 203 and the top surface of the first mold 2 or the top surface of the mold core 203 is the limit height of the conical spring in the working state, which is also the vertical height of the conical spring after the limit compression in the working state. The present invention is designed for ordinary mechanical springs where the conical spring does not need to be fully compressed at the working limit position. The vertical height is designed to prevent excessive compression, which would lead to excessive plastic deformation, thereby reducing elastic performance or causing permanent damage.

[0030] In the above solution, the top of the mold core 203 of this application is frustum-shaped. The vertical height of the first inclined surface 231 of the mold core 203 is greater than 0.2cm. The frustum-shaped structure is perfectly matched with the conical spring to achieve the first positioning and determine the position of the conical spring. The second positioning is achieved by inserting the protrusion 301 and the alignment hole 204 to realize the cooperation and separation of the mold core 203 of the first mold 2 and the second mold 3. The protrusion 301 and the alignment hole 204 are both located in the middle of the conical spring. Compared with the traditional direct pressing method, the second positioning method determines the center of the conical spring and prevents its top from shifting. During pressing, the conical spring is subjected to moderate pressure.

[0031] As one possible implementation of the mold core 203, the mold core 203 includes a first inclined surface 231, the angle A between the first inclined surface 231 and the horizontal line is 90-160°, which can be used for conical springs with different inner diameters and has a wide range of applications.

[0032] As one possible implementation of the mold core 203, an annular protrusion 241 is provided on the inner wall of the top end of the alignment hole 204.

[0033] Furthermore, the present invention also includes a hook rod 4 used in conjunction with the mold core 203. One end of the hook rod 4 is provided with a bent portion so that when the hook rod 4 extends into the alignment hole 204 of the mold core 203, it cooperates with the annular protrusion 241 to drive the mold core 203 or the first mold 2 as a whole to rise.

[0034] In the above technical solution, compared with the traditional mold core, the mold core 203 of this utility model has an annular protrusion 241 on the inner wall of the top of the alignment hole 204. When adjusting the position of the mold core 203, the hook rod 3 cooperates with the annular protrusion 241 to drive the mold core 203 to rise. Conversely, if it is to fall, the top of the mold core 203 can be pressed to lower it. If the mold core 203 and the first mold base 201 are fixed together, they can rise or fall together with the mold core 203.

[0035] To ensure smooth movement of the mold core 203 during adjustment and its fixation after adjustment, and to prevent it from being affected by the pressure of the second mold 3, the outer surface of the mold core 203 is provided with several adjustment holes 211, which are divided into two groups and arranged symmetrically. This utility model also includes an adjustment bolt 212, which passes through the outside of the first mold base 201 and is threadedly connected to the adjustment hole 211 of the mold core 203.

[0036] The specific operation is as follows: When it is necessary to adjust the mold core 203, remove the adjusting bolt 212, adjust the position of the mold core 203 according to the above method, check the adjusting hole 211 at the position, and let the adjusting bolt 212 re-pass through from the outside of the first mold base 201 and threadedly connect to the adjusting hole 211 of the mold core 203. The threaded connection method ensures tight engagement and prevents problems such as skewing.

[0037] In this embodiment, the present invention also includes a cylinder 5 for controlling the operation of the grinding head. The cylinder 5 is located directly above the first mold 2, and the output end of the cylinder 5 is mechanically connected to the second mold 3 so that the cylinder 5 moves up and down to control the second mold to press the spring located in a part of the turntable.

[0038] A vertical processing machine, in addition to the above-mentioned enhanced processing structure, also includes a machine base 6, a rotating shaft 7, and a motor 8. The turntable 1 is mounted on the machine base 6, and one end of the rotating shaft 7 is fixed in the center of the turntable 1, while the other end passes through the top surface of the machine base 6 and is fixed to the output end of the motor 8 located inside the machine base 6, so that the motor 8 drives the turntable 1 to rotate to realize the turntable 1 to process in different areas.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A reinforcing structure for a spring, characterized in that, It includes several positioning holes (101) set on the turntable (1) along the circumferential direction, each positioning hole is equipped with a first mold (2), and also includes a second mold (3). The spring to be processed is placed in the first mold (2), and the second mold (3) contacts the first mold (2) to squeeze the spring or separate it. The first mold (2) includes a first mold base (201) installed in the positioning hole (101), and the internal space of the first mold base (201) is a cavity (202); the first mold (2) also includes a mold core (203) that can move up and down in the cavity (202), and the top of the mold core (203) is frustum-shaped, and an alignment hole (204) is opened at the center of the top surface of the mold core (203). The second mold (3) includes a protrusion (301) which is located on one end face of the second mold (3) and is inserted into the alignment hole (204) at the top of the first mold (2) so that the mold core (203) of the first mold (2) is detachably and fixedly connected to the second mold (3).

2. The reinforcement structure for a spring according to claim 1, characterized in that, The inner wall of the top end of the alignment hole (204) is provided with an annular protrusion (241).

3. The reinforcement structure for springs according to claim 2, characterized in that, It also includes a hook rod (4) used in conjunction with the mold core (203), one end of which is provided with a bent part so that when the hook rod (4) extends into the alignment hole (204) of the mold core (203), it cooperates with the annular protrusion (241) to drive the mold core (203) or the first mold (2) to rise as a whole.

4. The reinforcement structure for a spring according to claim 1, characterized in that, The outer surface of the mold core (203) is provided with several adjustment holes (211), which are divided into two groups and arranged symmetrically. It also includes an adjustment bolt (212), which passes through the outside of the first mold base (201) and is threadedly connected to the adjustment hole (211) of the mold core (203).

5. The reinforcement structure for a spring according to claim 1, characterized in that, The mold core (203) includes a first inclined surface (231), and the angle A between the first inclined surface (231) and the horizontal line is 90-160°.

6. The reinforcement structure for a spring according to claim 1, characterized in that, The vertical height of the first inclined surface (231) of the mold core (203) is greater than 0.2cm.

7. The reinforcement structure for a spring according to claim 1, characterized in that, It also includes a cylinder (5) for controlling the operation of the grinding head, the cylinder (5) being located directly above the first mold (2), and the output end of the cylinder (5) being mechanically connected to the second mold (3).

8. The reinforcement structure for a spring according to claim 7, characterized in that, It also includes a machine base (6), a rotating shaft (7) and a motor (8). The turntable (1) is mounted on the machine base (6), and one end of the rotating shaft (7) is fixed in the center of the turntable (1), while the other end passes through the top surface of the machine base (6) and is fixed to the output end of the motor (8) located inside the machine base (6).