Special spring winding tool

Abstract

The special spring winding tool comprises a winding core rod and a pressing plate body, a clamping handle, a spring steel wire mounting groove, a mounting matching hole, a pressing plate positioning groove, a limiting supporting column mounting hole and a winding working face are arranged on the winding core rod, the spring steel wire mounting groove transversely penetrates through the interior of the winding core rod, and an opening is formed outwards in the radial direction; the mounting matching hole is formed in the outer side wall of the clamping handle and communicates with a spring steel wire mounting groove in the clamping handle, the limiting supporting column mounting hole is formed in the connecting position of the clamping handle and the winding working face, the special spring body comprises a winding part located in the middle and vertical parts located at the two ends, and the winding part is arranged around the winding working face; in conclusion, the spring steel wire pressing plate has the advantages of being simple in structure, convenient to operate, low in machining cost, high in machining efficiency and suitable for application and popularization.

Description

Technical Field

[0001] The invention relates to the technical field of special spring processing, in particular to a special spring winding tool. Background Art

[0002] Special springs are common elastic elements and are widely used in various equipment in the aviation field. In some special application scenarios, in addition to requiring special spring materials, the springs are also required to have a specific shape, such as Figure 1 The special spring body shown in the figure belongs to a spring with a special shape. Generally, a general spring winding machine cannot be used to wind the spring with a special shape. Generally, special equipment is required. However, this type of equipment is expensive and not suitable for small batch production. Therefore, a special spring winding tool is urgently needed to solve the above-mentioned problems. Summary of the invention

[0003] In view of this, the present invention proposes a special spring winding tool, which is applied to the field of special spring processing technology to solve the technical problems of existing special equipment such as high cost, complex structure, inconvenient use and unsuitability for small batch production.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A special spring winding tool is used in conjunction with a special spring main body, comprising a winding mandrel and a pressure plate main body. The winding mandrel is provided with a clamping handle, a spring steel wire installation groove, an installation matching hole, a pressure plate positioning groove, a limiting pillar installation hole and a winding working surface. The spring steel wire installation groove passes horizontally through the interior of the winding mandrel, and the opening is radially arranged outward. The installation matching hole is arranged on the outer side wall of the clamping handle and is connected with the spring steel wire installation groove inside the clamping handle. The limiting pillar installation hole is arranged at the connection between the clamping handle and the winding working surface. The special spring main body comprises a winding part located in the middle and vertical parts located at both ends. The winding part is arranged around the winding working surface, and the vertical part extends into the corresponding spring steel wire installation groove. The pressure plate main body extends into the spring steel wire installation groove, thereby fixing the vertical part inside the spring steel wire installation groove. A limiting pillar main body is arranged inside the limiting pillar installation hole. The limiting pillar main body fixes the winding part to prevent the winding part from rotating, and the limiting pillar main body passes through.

[0006] Furthermore, a pressing plate protrusion is provided on the pressing plate body, a pressing plate positioning groove is provided on the outer side wall of the clamping handle, and the pressing plate protrusion penetrates into the pressing plate positioning groove, thereby ensuring that the pressing plate will not move axially.

[0007] Furthermore, the opening size of the spring wire installation groove is equal to the diameter of the special spring body.

[0008] Furthermore, there are four mounting fitting holes, each two mounting fitting holes form a group, the two groups of mounting fitting holes are symmetrically arranged about the spring wire mounting groove, and the pressure plate positioning groove is located between the corresponding mounting fitting holes and is cross-distributed with the mounting fitting holes.

[0009] Further, the diameter of the winding working surface is equal to the diameter of the special spring body minus the size of the material rebound.

[0010] Furthermore, the winding mandrel is made of a steel bar, the material grade is CrWMn, and the quenching temperature is HRC55.

[0011] Furthermore, the limiting support body is fixed inside the limiting support mounting hole by screws.

[0012] The present invention has the following beneficial effects:

[0013] The present invention mentions a special spring winding tool, which supports the special spring body through the clamping handle and the winding working surface, limits the position of the special spring body through the spring steel wire installation groove and the pressure plate body, prevents the special spring body from rotating on the winding working surface through the limiting support body, and fixes the position of the pressure plate body through the pressure plate positioning groove and the installation matching hole. The special spring processing can be completed without special equipment, the structure is simple, the operation is convenient, the processing cost is low, the processing efficiency is high, and it has good popularization. Similar special springs can use this tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of a special spring body in the background technology;

[0016] Figure 2 A structural schematic diagram of a special spring winding tool provided by the present invention;

[0017] Figure 3 It is a structural schematic diagram of a winding mandrel in a specific embodiment of the present invention;

[0018] Figure 4 It is a structural schematic diagram of a pressing plate body in a specific embodiment of the present invention;

[0019] Figure 5 It is a schematic diagram of the connection structure of the special spring body and the winding mandrel in a specific embodiment of the present invention;

[0020] Among them: 1. Clamping handle; 2. Spring wire installation groove; 3. Installation matching hole; 4. Pressure plate positioning groove; 5. Limit support installation hole; 6. Winding working surface; 7. Special spring body; 8. Pressure plate body; 9. Pressure plate protrusion. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present invention, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any of the several aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0024] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the form, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0025] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0026] Example 1

[0027] like Figures 1 to 5As shown, a special spring winding tool is used in conjunction with a special spring body 7, including a winding mandrel and a pressure plate body 8. The winding mandrel is made of a steel bar, the material grade is CrWMn, and the quenching is HRC55. The winding mandrel is provided with a clamping handle 1, a spring steel wire installation groove 2, an installation matching hole 3, a pressure plate positioning groove 4, a limit support installation hole 5 and a winding working surface 6. The diameter of the clamping handle 1 is determined by the rotating device interface provided in conjunction with it. The spring steel wire installation groove 2 passes through the interior of the winding mandrel transversely, and the opening is radially arranged outward. The opening size of the spring steel wire installation groove 2 is equal to the diameter of the special spring body 7. The installation matching hole 3 is provided on the outer side wall of the clamping handle 1, and is aligned with the spring steel wire inside the clamping handle 1. The mounting grooves 2 are connected, there are four mounting matching holes 3, every two mounting matching holes 3 form a group, and the two groups of mounting matching holes are stacked about the spring wire mounting groove 2. The pressure plate positioning groove 4 is located between the corresponding mounting matching holes 3, and is cross-distributed with the mounting matching holes 3. The limiting pillar mounting hole 5 is arranged at the connection between the clamping handle 1 and the winding working surface 6. The limiting pillar body is fixed inside the limiting pillar mounting hole 5 by screws. A pressure plate protrusion 9 is arranged on the pressure plate body 8. The pressure plate positioning groove 4 is arranged on the outer wall of the clamping handle 1. The pressure plate protrusion 9 extends into the pressure plate positioning groove 4, thereby ensuring that the pressure plate will not move axially. The diameter of the winding working surface 6 is equal to the diameter of the special spring body 7 minus the size of material rebound.

[0028] The preparation material of the special spring main body 7 is spring steel wire. The special spring main body 7 includes a winding part located in the middle and vertical parts located at both ends. The winding part and the vertical parts located at both ends are concentrically arranged with the center line of the winding core rod. The winding part is arranged around the winding working surface 6, and the vertical part penetrates into the corresponding spring steel wire installation groove 2. The pressure plate body 8 penetrates into the spring steel wire installation groove 2, thereby fixing the vertical part inside the spring steel wire installation groove 2. A limiting support body is arranged inside the limiting support mounting hole 5. The limiting support body fixes the winding part to prevent the winding part from rotating, and the limiting support body passes through.

[0029] The present invention provides that during use, a certain length of spring steel wire on the special spring main body 7 is inserted into the winding core rod installation groove, and then the pressure plate main body 8 is installed, and the corresponding positioning pin is inserted into the pressure plate installation matching hole 3, the spring steel wire is compressed by the pressure plate main body 8, and the clamping handle 1 of the winding core rod is installed into the rotating device interface, the rotating device is started, and the spring steel wire is straightened so that the spring steel wire and the winding core rod are at a certain angle, and this angle is equal to the spring rotation angle. After the required number of turns are wound, the rotating device is stopped, and the remaining spring steel wire is bent and enters the core rod installation groove. The bending angle is until the remaining spring steel wire is concentric with the winding core rod. The pressure plate main body 8 and the limiting support body are removed, and the special spring main body 7 can be pulled away from the winding core rod to complete the entire processing process. In short, the present invention has the advantages of simple structure, convenient operation, low processing cost, high processing efficiency and suitability for popularization and application.

[0030] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A special spring winding tool, used in conjunction with a special spring body (7), characterized in that: The invention comprises a winding mandrel and a pressure plate body (8), wherein the winding mandrel is provided with a clamping handle (1), a spring steel wire installation groove (2), an installation matching hole (3), a pressure plate positioning groove (4), a limiting pillar installation hole (5) and a winding working surface (6), wherein the spring steel wire installation groove (2) passes through the interior of the winding mandrel transversely and the opening is arranged radially outward, the installation matching hole (3) is arranged on the outer side wall of the clamping handle (1) and is connected to the spring steel wire installation groove (2) inside the clamping handle (1), and the limiting pillar installation hole (5) is arranged between the clamping handle (1) and the winding working surface (6). At the connection of the working surface (6), the special spring body (7) includes a winding part located in the middle and vertical parts located at both ends, the winding part is arranged around the winding working surface (6), the vertical part extends into the corresponding spring wire installation groove (2), the pressure plate body (8) extends into the spring wire installation groove (2), thereby fixing the vertical part inside the spring wire installation groove (2), and a limiting support body is arranged inside the limiting support mounting hole (5), the limiting support body fixes the winding part to prevent the winding part from rotating, and the limiting support body passes through.

2. A special spring winding tool according to claim 1, characterized in that: The pressure plate body (8) is provided with a pressure plate protrusion (9), the pressure plate positioning groove (4) is provided on the outer wall of the clamping handle (1), and the pressure plate protrusion (9) penetrates into the pressure plate positioning groove (4), thereby ensuring that the pressure plate will not move axially.

3. A special spring winding tool according to claim 2, characterized in that: The opening size of the spring steel wire installation groove (2) is equal to the diameter of the special spring body (7).

4. A special spring winding tool according to claim 3, characterized in that: There are four mounting matching holes (3), with two mounting matching holes (3) forming a group. The two groups of mounting matching holes (3) are symmetrically arranged with respect to the spring wire mounting groove (2). The pressure plate positioning groove (4) is located between the corresponding mounting matching holes (3) and is cross-distributed with the mounting matching holes (3).

5. A special spring winding tool according to claim 4, characterized in that: The diameter of the winding working surface (6) is equal to the diameter of the special spring body (7) minus the size of material rebound.

6. A special spring winding tool according to claim 5, characterized in that: The winding core rod is made of a steel rod, the material grade is CrWMn, and the quenching temperature is HRC55.

7. A special spring winding tool according to claim 6, characterized in that: The limiting support body is fixed inside the limiting support mounting hole (5) by means of screws.

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