CN112555312A

CN112555312A - Torsional spring strong-twisting device and method

Info

Publication number: CN112555312A
Application number: CN202011287326.9A
Authority: CN
Inventors: 张水仙; 任双宁; 于格; 张享倩; 赵艳华; 田伟智
Original assignee: Beijing Xinghang Electromechanical Equipment Co Ltd
Current assignee: Beijing Xinghang Electromechanical Equipment Co Ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-03-26
Anticipated expiration: 2040-11-17
Also published as: CN112555312B

Abstract

The invention relates to the field of spring manufacturing, in particular to a torsion spring strong-twisting device and method. The torsion spring is formed by coiling a torsion spring wire, wherein the first end is an inward coiling end, and the second end is an outward extending end; the rotatable disc is arranged at the other end of the mandrel and used for fixing the second end of the torsion spring, rotating to a strong torsion angle and fixing the strong torsion angle through the mandrel limiting part. The device can complete the strong torsion treatment of the torsion spring without the help of complex special equipment.

Description

Torsional spring strong-twisting device and method

Technical Field

The invention belongs to the field of spring manufacturing, and particularly relates to a torsion spring strong-twisting device.

Background

Torsion springs are an important mechanical elastic element and have a very wide range of applications. In order to reduce the plastic deformation in the working process, the torsion spring generally needs to be subjected to strong torsion treatment before use, certain torsion is applied to the torsion spring until the surface stress of the material exceeds the yield point, and the torsion spring is kept for a certain time, so that negative residual stress is generated on the surface layer and positive residual stress is generated on the core part, and the purpose of strengthening or stabilizing the size is achieved. The existing torsion spring strong-twisting device is mostly an electromechanical (hydraulic) integrated product, is complex in structure and higher in cost, is suitable for strong-twisting treatment of large-batch torsion springs, and needs a simple torsion spring strong-twisting device which is simple in structure and lower in cost due to the consideration of cost when single-piece or small-batch torsion spring production is carried out.

Disclosure of Invention

In order to solve the above problems, the present invention provides a torsion spring torsion device and method, which can complete torsion processing of a torsion spring without using complicated special equipment.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a torsion spring strong twisting device, the torsion spring being wound by a torsion spring wire, the first end being an inward winding end, the second end being an outward extending end, the torsion spring strong twisting device comprising a mandrel, a fixed disc, a rotatable disc, a mandrel limiting part,

the torsion spring is wound on the mandrel in a surrounding way,

the fixed disc is arranged at one end of the mandrel, and the position of the fixed disc is kept unchanged after the fixed disc is arranged;

the rotatable disc is mounted at the other end of the mandrel and used for fixing the second end of the torsion spring and rotating to a strong torsion angle, and then the rotatable disc is fixed at the strong torsion angle through the mandrel limiting part.

Further, the dabber is echelonment axle type part, includes:

the middle section comprises a first end and a second end, the first end of the middle section is provided with a long circular groove, and a torsion spring wire at the first end of the torsion spring is inserted into and fixed in the long circular groove;

the first end of the mandrel is formed by extending from the first end of the middle section, the fixed disc is arranged at the first end of the mandrel, the cross section of the fixed disc is in an oblong shape, and a threaded hole is formed in the end face of the fixed disc;

the second end of the mandrel is formed by extending from the second end of the middle section, the rotatable disc is installed at the second end of the mandrel, the cross section of the rotatable disc is in an oblong shape, and a threaded hole is formed in the end face of the rotatable disc.

Further, two end surfaces of the middle section and end surfaces of the first end and the second end of the mandrel are parallel to each other; the diameter of interlude is greater than the diameter of dabber first end, dabber second end, and the interlude diameter is less than the torsional spring internal diameter.

Furthermore, the fixed disk is of an outer hexagonal disk structure, a first long round hole is formed in the middle of the fixed disk, the first end of the mandrel penetrates through the long round hole, and the fixed disk is fixed at the first end of the mandrel through a check ring and a screw.

Furthermore, the rotatable disc is of an outer hexagonal disc passing structure, a central circular hole is formed in the middle of the rotatable disc, and the second end of the mandrel penetrates through the central circular hole; a torsion spring wire mounting hole is formed near the central circular hole, and a torsion spring wire at the second end of the torsion spring penetrates through and is fixed in the torsion spring wire mounting hole; and a first angle limiting hole is also formed near the central round hole.

Further, the mandrel limiting part is positioned at the second end of the mandrel and outside the rotatable disc, and comprises a mandrel limiting block and a mandrel limiting pin, and the mandrel limiting block is sleeved on the second end of the mandrel; the mandrel limiting pin penetrates through the mandrel limiting block.

Further, the mandrel limiting block is of a flat-plate-shaped structure, a second long circular hole is formed in one side of the flat-plate-shaped structure, and the second end of the mandrel penetrates through the second long circular hole; and a second angle limiting hole is formed in one side of the plane of the tabular structure, and the size of the second angle limiting hole is the same as that of the first angle limiting hole.

Furthermore, the diameter of the mandrel limiting pin is slightly smaller than the diameters of the first angle limiting hole and the second angle limiting hole, and the length of the mandrel limiting pin is larger than the sum of the thicknesses of the rotatable disc and the mandrel limiting block.

Furthermore, after the torsion spring is turned to the strong angle, the mandrel limiting pin is inserted into the first angle limiting hole and the second angle limiting hole to limit the relative rotation between the rotatable disc and the mandrel.

In order to achieve the above object, according to a second aspect of the present invention, there is provided a torsion spring strong-twisting method based on the torsion spring strong-twisting device according to any one of the preceding aspects, the torsion spring strong-twisting method comprising the steps of:

the fixed disc is detached, the torsion spring is sleeved on the mandrel, and then the fixed disc is installed in place;

fixing a first end of a torsion spring on the core shaft, and fixing a second end of the torsion spring on the rotatable disc;

fixing the fixed disc, rotating the rotatable disc, forcibly twisting the torsion spring to a strong twisting angle, and fixing the torsion spring at the strong twisting angle through the mandrel limiting part;

and after the appointed strong twisting time is reached, the device is dismantled.

The invention has the beneficial effects that:

the invention has the advantages that the torsion spring is installed on the device by disassembling and assembling the fixed disc, the fixed disc is fixed, then the rotatable disc is rotated to a specified angle, the mandrel limiting pin is inserted into the mandrel limiting block and the angle limiting hole of the rotatable disc, and the strong torsion of the torsion spring is realized. The torsion spring strong-torsion device is simple in structure, convenient to operate and low in manufacturing cost, and can complete strong-torsion treatment of the torsion spring without the help of complex special equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 shows a schematic view of a torsion spring configuration;

FIG. 2 shows a front view of the spindle of a torsion spring torquing device according to an embodiment of the present invention;

FIG. 3 is a front view of a torsion spring hard twisting device according to an embodiment of the present invention (the torsion spring is in a hard twisted state);

FIG. 4 is a top view of a torsion spring hard twisting device according to an embodiment of the present invention (the torsion spring is in a hard twisted state);

FIG. 5 is a front view of a stationary plate of a torsion spring torsion device according to an embodiment of the present invention;

FIG. 6 illustrates a front view of a rotatable plate of a torsion spring torquing arrangement in accordance with an embodiment of the present invention;

fig. 7 is a front view of a mandrel limiting block of the torsion spring torsion device according to an embodiment of the invention.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terms "first," "second," and the like in the description and in the claims of the present disclosure are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

A plurality, including two or more.

And/or, it should be understood that, for the term "and/or" as used in this disclosure, it is merely one type of association that describes an associated object, meaning that three types of relationships may exist. For example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone.

Examples

As shown in fig. 2 and 3, the torsion spring torsion device comprises a mandrel 1, a fixed disc 2, a rotatable disc 3, a mandrel limiting block 4, a mandrel limiting pin 5, a retainer ring 6, a screw 7 and the like. The torsion spring is configured as shown in fig. 1, with the first end being an inwardly coiled end and the second end being an outwardly extending end.

As shown in fig. 4, the mandrel 1 is a stepped shaft part, the diameter of the middle section is 16mm, the diameters of the left and right ends are 10mm, the inner diameter of the torsion spring is 17mm, and the left side of the middle section is provided with a long circular groove with the width of 5.2 mm; the left end and the right end of the mandrel 1 are respectively provided with a parallel plane structure close to the end faces, the distance between the two parallel planes is 9mm, and the end faces of the left end and the right end are respectively provided with an M6 threaded hole coaxial with the mandrel 1.

As shown in fig. 5, the fixed disk 2 has an outer hexagonal disk structure, and a long circular hole is formed in the middle of the fixed disk, and the width of the long circular hole is 9.1 mm.

As shown in fig. 6, the rotatable disc 3 is of an outer hexagonal disc-through structure, and has a circular hole in the middle, and the diameter of the circular hole is 10.2 mm; in addition, two round holes are arranged beside the middle round hole, one round hole is a torsion spring and torsion arm mounting hole with the diameter of 5.2mm, and the other round hole is an angle limiting hole with the diameter of 6.2 mm.

As shown in fig. 3 and 7, the mandrel limiting block 4 is of a flat-plate structure, one end of the mandrel limiting block is provided with a long round hole, and the width of the long round hole is 9.1 mm; the other end is provided with a round hole which is an angle limiting hole with the diameter of 6.2 mm.

The mandrel limiting pin 5 is used for limiting the rotatable disc 3 and the mandrel 1 to rotate relatively after the torsional spring is forcibly twisted to a certain angle, the diameter of the pin body is 6mm, and the length of the pin body is 27 mm.

Fixed disk 2 passes through retaining ring 6 and screw 7 fixes at 1 left end of dabber, and rotatable dish 3 overlaps in proper order with dabber stopper 4 at 1 right-hand member of dabber to fix through retaining ring 6 screw 7, rotatable dish 3 can smoothly rotate around dabber 1 after the installation.

The torsion spring strong-torsion device comprises the following specific use and operation steps:

(1) firstly, the fixed disk 2 is dismantled, and the fixed disk 2 is installed in place after the torsion spring is installed on the device;

(2) fixing the fixed disc 2, then rotating the rotatable disc 3, and forcibly twisting the torsion spring to a specified angle, wherein the angle limiting hole on the mandrel limiting block 4 is just aligned with the angle limiting hole on the rotatable disc 3;

(3) inserting a mandrel limiting pin 5 into the mandrel limiting block 4 and the angle limiting holes on the rotatable disc 3;

(4) and after the appointed strong twisting time is reached, the device is dismantled.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A torsion spring strong-twisting device is formed by coiling a torsion spring wire, wherein a first end is an inward coiling end, and a second end is an outward extending end, and is characterized in that the torsion spring strong-twisting device comprises a mandrel, a fixed disc, a rotatable disc and a mandrel limiting part,

the torsion spring is wound on the mandrel in a surrounding way,

2. The torsion spring torsion device according to claim 1, wherein the spindle is a stepped shaft part, comprising:

3. The torsion spring torsion device according to claim 2, wherein both end surfaces of the middle section and the end surfaces of the first end and the second end of the spindle are parallel to each other; the diameter of interlude is greater than the diameter of dabber first end, dabber second end, and the interlude diameter is less than the torsional spring internal diameter.

4. The torsion device of the torsion spring according to claim 1, wherein the fixed disk is in an outer hexagonal disk-shaped structure, a first long circular hole is formed in the middle of the fixed disk, the first end of the spindle penetrates through the first long circular hole, and the fixed disk is fixed at the first end of the spindle through a retaining ring and a screw.

5. The torsion spring torsion device according to claim 1, wherein the rotatable disc is of an outer hexagonal disc-through structure with a central circular hole in the middle through which the second end of the spindle passes; a torsion spring wire mounting hole is formed near the central circular hole, and a torsion spring wire at the second end of the torsion spring penetrates through and is fixed in the torsion spring wire mounting hole; and a first angle limiting hole is also formed near the central round hole.

6. The torsion device of the torsion spring according to claim 5, wherein the mandrel limiting part is located on the second end of the mandrel and outside the rotatable disc, and comprises a mandrel limiting block and a mandrel limiting pin, and the mandrel limiting block is sleeved on the second end of the mandrel; the mandrel limiting pin penetrates through the mandrel limiting block.

7. The torsion spring torsion device according to claim 6, wherein the mandrel limiting block is of a flat-plate structure, a second oblong hole is formed in one side of the flat-plate structure, and the second end of the mandrel penetrates through the second oblong hole; and a second angle limiting hole is formed in the other side of the plane of the tabular structure, and the size of the second angle limiting hole is the same as that of the first angle limiting hole.

8. The torsion spring torsion device according to claim 7, wherein the spindle stop pin is inserted through the first angle stop hole and the second angle stop hole to limit the relative rotation between the rotatable disc and the spindle after the torsion spring is twisted to the torsion angle.

9. The torsion device of claim 8, wherein during the limiting process, the length of the mandrel limiting pin is greater than the sum of the thicknesses of the rotatable disc and the mandrel limiting block.

10. A torsion spring hard-twisting method, characterized in that the method is based on the torsion spring hard-twisting device according to any one of claims 1 to 9, and the method comprises the following steps: