CN200974106Y - Continuous wire rolling diameter changed type spring rolling device - Google Patents

Abstract

The utility model belongs to the technical field of spring processing, in particular to a spring winding device with continuously variable wire diameter. It is composed of a mandrel, a left collar, a coiled spring plate, a rear top cone, a return spring, a right collar and a coiled spring plate spacer, etc. The mandrel is composed of a long cylindrical section, a fixed section, a short cylindrical section, a shrinking section, and an extended cylinder The segments are connected in turn to form a whole. The left collar is sleeved outside the short cylindrical section of the mandrel, and the return spring is sleeved at one end of the extended cylindrical section of the mandrel. The shape of the rear top cone is the same as the contraction section of the mandrel. Outside the lengthened cylindrical section, the right collar is placed outside the back top cone; there are two groups of spacers around the spring plate, which are evenly distributed on the contraction section of the mandrel and the back top cone at an angle of 120° to the axis of the mandrel. The spring-wound plate is connected with the corresponding tapered surfaces of the mandrel and the rear top cone through the tapered surfaces at its two ends by forming an angle of 120° with the axis of the mandrel. The utility model provides a cheap, simple, reliable, efficient and safe spring winding device, which reduces the cost and reduces the weight of the traditional spring.

Description

Become silk diameter spring coiling device continuously

Technical field

The utility model belongs to the spring processing technique field, is specifically related to a kind of continuous change silk diameter spring coiling device.

Background technology

Spring is widely used in each field, but the steel wire diameter of most of springs is invariable.Therefore can not satisfy the demand of special industry well, promptly not reach optimization.For example automobile, Aero-Space etc. may need the spring of the various special characteristics curves except that linear.Characteristic line is that non-linear helical spring has irregular pitch cylindroid helical-coil compression spring, conical spring, truncated cone scrollwork helical spring and cluster spring etc. at present.

Conventional springs is to satisfy tapered, the truncated cone scrollwork pattern of the general employing of requirement of nonlinear characteristic curve, and its main purpose is: (1) satisfies the requirement of nonlinear characteristic curve, and (2) coiling is convenient, shirks easily.But this class spring is easy to generate unstability under external force because its every circle is tapered or pagoda-shaped distributes, and has a strong impact on actual characteristic curve and the uniformity of theoretical characteristics curve and the life-span of spring of spring.

Because modern designs all adopts the method to " interior " by " outward ", promptly first deisgn product profile, and then inner each parts of coordinate design product, this just requires each component structural compactness, can not interfere mutually.Under the identical situation of other condition, the helical spring volume of variable cross-section is littler than the conical spring, so use the variable cross-section helical spring will satisfy the requirement of the miniaturization day by day of present product, lightweight and non-linearization.Because this spring configuration size is the same with common helical spring, so just can be widely used in the improvement with approved product, such as repacking old automobile hanging spring into variable cross-section helical spring etc.Though the variable cross-section spiral spring has been avoided conical spring, truncated cone scrollwork helical spring wild effect under external force, during spring Coil-up, shirk and become a difficult point.Therefore the goal in research that to study a kind of tapered spring coiling device be those skilled in the art.

Summary of the invention

The purpose of this utility model is to provide a kind of continuous change silk diameter spring coiling device simple in structure, easy to use.

The continuous change silk diameter spring coiling device of proposition of the present utility model, by axle 1, the left collar 3, form around spring plank 5, back addendum cone 6, back-moving spring 7, split pin 9, the right collar 10 with around spring plank partition 12, its structure as shown in Figure 1.Wherein, axle 1 connects to form one (as shown in Figure 2) successively by oval shell of column 15, canned paragraph 16, short cylindrical section 17, contraction section 18, lengthening cylindrical section 19, the diameter of canned paragraph 16 is respectively greater than oval shell of column 15, short cylindrical section 17, contraction section 18 is the truncated cone-shaped structure, and the diameter of lengthening cylindrical section 19 is less than the diameter of short cylindrical section 17; The left side collar 3 is placed in outside the short cylindrical section 17 of axle 1, by the canned paragraph 16 of screw 14 coupling spindles 1, and by pin 2 location; Back-moving spring 7 is placed in an end of the lengthening cylindrical section 19 of axle, back addendum cone 6 is the truncated cone-shaped structure, shape is identical with the contraction section 18 of axle, and back addendum cone 6 is placed in outside the lengthening cylindrical section 19 of axle 1, and the big end of back addendum cone 6 diameters is positioned at an end of axle lengthening cylindrical section 19; The right collar 10 is placed in outside the addendum cone 6 of back; Around spring plank partition 12 is 2 groups, and every group is 3, respectively by becoming 120 ° angle to be distributed on the contraction section 18 and back addendum cone 6 of axle 1 with the axle center of axle, and fixing by screw 13; Around spring plank 5 is 3, by become 120 ° angle to be distributed on short cylindrical section 17, contraction section 18, oval shell of column 19 and the back addendum cone 6 of axle 1 with the axle center of axle, connects with the corresponding conical surface of axle 1 and back addendum cone 6 by the conical surface around spring plank 5 two ends; One side of the right collar 10 is provided with split pin 9, and is fixing by nut 8.

In the utility model, the lengthening cylindrical section 19 of axle 1 is positioned at a section of back addendum cone 6, and its underpart has bar-shaped trough 20, is provided with spacer pin 11 in the groove 20, and it is interference fit that spacer pin 11 connects with back addendum cone 6.

The course of work of the present utility model is as follows: the oval shell of column 15 of axle 1 left end is fixed on the lathe, right-hand member is withstood by top, be fixed in the right-hand member notch of pin 2 becoming silk diameter spring steel wire left end continuously, start lathe, steel wire is along V-type groove coiling in spring plank 5, until right-hand member, spring 4 winding process finish; Unclamp locking nut 8 then, take out split pin 9, the addendum cone 6 and the right collar 10 after back-moving spring 7 outwards moves and promotes, the displacement of back addendum cone 6 is by spacer pin 11 controls, and around spring plank 5 loosening and inwardly contractions, spring 4 breaks away from around spring plank 5, takes out spring 4.Again the right collar 10 is snapped in, put into split pin 9, tighten locking nut 8, just can implement the winding process of next spring.

The utility model has designed the coiling device that a kind of plug can shrink, and can satisfactory solution becomes the taking-up problem of a diameter spring continuously.It has impelled continuous manufacturing and the use that becomes the silk diameter spring, for automotive suspension provides a kind of nonlinear characteristic curve spring, reduces vibration; Provide a kind of new way for the cartridge clip of the demanding ordnance of precision such as pistol, rifle and bump spring reduce vibration, improved fire accuracy; Change the spring that eases up for the flanging of Drawing Die provides a kind of pressure-pad-force, reduce and break and rugosity; Be the body mounting in the track traffic, a kind of spring that reduces vibration and complete vehicle weight is provided.

The characteristics of the spring that the utility model is designed are: maximum in the middle of the steel wire radius, and two ends minimum, and changing continuously, pitch also changes continuously, and the center in the arbitrary cross section of every circle is all on the face of cylinder with the spring center line parallel (as shown in Figure 3) simultaneously.

Advantage of the present utility model is: for spring manufacturing enterprise provides a kind of inexpensive, simple and easy, reliable, efficient and safe coiling device, reduce cost; Continuous change silk diameter spring with nonlinear characteristic curve is used become possibility; Can alleviate the weight of conventional springs, for lightweight implements to provide a kind of approach.This device needn't be implemented on special equipment, can realize on engine lathe, and is simple to operation, reliable.

Description of drawings

Fig. 1 is a structural diagrams of the present utility model.

Fig. 2 is the structural diagrams of the utility model axle 1.

Fig. 3 is the structural diagrams of the spring 4 of 1 coiling of embodiment.

Number in the figure: 1 is axle, and 2 is pin, and 3 is the left collar, and 4 is spring, 5 is around spring plank, and 6 is the back addendum cone, and 7 is back-moving spring, and 8 is nut, 9 are split pin, and 10 is the right collar, and 11 is spacer pin, 12 is around the spring plank partition, and 13 is screw, and 14 is screw, 15 is the oval shell of column of axle, and 16 is the canned paragraph of axle, and 17 is the short cylindrical section of axle, 18 is the contraction section of axle, and 19 is the lengthening cylindrical section of axle, and 20 is bar-shaped trough.

The specific embodiment

Further describe the utility model below by embodiment.

Embodiment 1

As shown in Figure 2, axle 1 connects to form one successively by oval shell of column 15, canned paragraph 16, short cylindrical section 17, contraction section 18, lengthening cylindrical section 19, wherein, the diameter of oval shell of column 15 is 30mm, length is 60mm, the diameter of canned paragraph 16 is 60mm, and length is 15mm, and the diameter of short cylindrical section 17 is 30mm, length is 15mm, the tapering of contraction section 18 is 30 °, and length is 40mm, and the diameter of lengthening cylindrical section 19 is 9mm, length is 70mm, one section bottom in the back addendum cone 6 has bar-shaped trough 20, and the length of bar-shaped trough 20 is 26mm, is provided with spacer pin 11 in the groove 20; The left side collar 3 is placed in outside the short cylindrical section 17 of axle 1, by the canned paragraph 16 of three M6 soket head cap screw 14 coupling spindles 1, and by means of 2 Ф, 6 pins, 2 location; Back-moving spring 7 is placed in an end of the lengthening cylindrical section 19 of axle, back addendum cone 6 is the truncated cone-shaped structure, shape is identical with the contraction section 18 of axle, and back addendum cone 6 is placed in outside the lengthening cylindrical section 19 of axle 1, and the big end of back addendum cone 6 diameters is positioned at an end of axle lengthening cylindrical section 19; The right collar 10 is placed in outside the addendum cone 6 of back; Around spring plank partition 12 is 2 groups, and every group is 3, respectively by becoming 120 ° angle to be distributed on the contraction section 18 and back addendum cone 6 of axle 1 with the axle center of axle, and fixing by the soket head cap screw 13 of M3; Around spring plank 5 is 3, by become 120 ° angle to be distributed on short cylindrical section 17, contraction section 18, oval shell of column 19 and the back addendum cone 6 of axle 1 with the axle center of axle, connects with the corresponding conical surface of axle 1 and back addendum cone 6 by the conical surface around spring plank 5 two ends; One side of the right collar 10 is provided with split pin 9, and is fixing by M10 nut 8.By being fixed on along the circumferential direction locating on axle 1 and the back addendum cone 6 around the spring plank partition, location along radial direction relies on the inner cylinder face of the left collar 3 and the right collar 10 to realize, realizes along the location dependence split pin 9 of axis direction and the locking nut 8 that is connected on the axle 1.

Said apparatus is used for the coiling spring, and axle 1 left end is fixed on the lathe, and right-hand member is withstood by top, is fixed in the right-hand member notch of pin 2 becoming silk diameter spring steel wire left end continuously, starts lathe, and steel wire is along V-type groove coiling in spring plank 5, until right-hand member finishes.Unclamp locking nut 8, take out split pin 9, back-moving spring 7 promotes the back addendum cone 6 and the right collar 10 to the right, and back addendum cone 6 displacements are become flexible and inwardly shunk around spring plank 5 by spacer pin 11 controls, and spring 4 breaks away from around spring plank 5, taking-up spring 4.Again the right collar 10 is snapped in, put into split pin 9, tighten locking nut 8, just can implement the coiling of next spring.

The center of the every circle of spring that employing the utility model device obtains all on a face of cylinder, sees that from section whole profile is a cydariform, and its structure as shown in Figure 3.The drift of spring is 159mm, and middle footpath is 83mm, and pitch is 30mm; The two ends diameter of spring steel wire is 8mm, and mid diameter is 15mm.It is 1718.5mm that whole spring launches the back steel wire length, support segment length 236mm, diameter is 8mm, variable cross-section segment length 492mm, middle transition segment length 262.5mm launches the back steel wire and is made of according to this supporting section, variable cross-section section, middle transition section, variable cross-section section and supporting section.

Claims (2)

1. A continuously variable wire diameter spring winding device, consisting of a mandrel (1), a left collar (3), a coiled spring plate (5), a rear top cone (6), a return spring (7), and a cotter pin ( 9), the right collar (10) and the spring plate spacer (12) are composed, and it is characterized in that the mandrel (1) is composed of a long cylindrical section (15), a fixed section (16), a short cylindrical section (17), a contraction Section (18), lengthened cylindrical section (19) are connected successively to form a whole, and the diameter of fixed section (16) is greater than long cylindrical section (15), short cylindrical section (17) respectively, and contraction section (18) is conical structure, lengthens The diameter of the cylindrical section (19) is smaller than the diameter of the short cylindrical section (17); the left collar (3) is placed outside the short cylindrical section (17) of the mandrel (1), and is connected to the mandrel (1) by a screw (14) The fixed section (16) of the mandrel is positioned by the pin (2); the return spring (7) is sleeved on one end of the elongated cylindrical section (19) of the mandrel, and the rear top cone (6) is a frustum-shaped structure, and its shape is the same as that of the mandrel. The contraction section (18) is the same, and the rear top cone (6) is sleeved outside the elongated cylindrical section (19) of the mandrel (1), and the end with the larger diameter of the back apical cone (6) is located at one end of the elongated cylindrical section (19) of the mandrel ; The right collar (10) is placed outside the rear top cone (6); 2 groups of spacers (12) around the spring plate, each group of 3, are evenly distributed at an angle of 120° to the axis of the mandrel On the shrinkage section (18) of the mandrel (1) and the rear top cone (6), and fixed by screws (13); there are 3 coiled spring plates (5), according to the angle of 120° with the axis of the mandrel The angles are evenly distributed on the short cylindrical section (17), the contraction section (18), the long cylindrical section (19) and the rear top cone (6) of the mandrel (1), through the conical surface at the two ends of the spring plate (5) and the The mandrel (1) is connected with the corresponding tapered surface of the rear top cone (6); one side of the right collar (10) is provided with a cotter pin (9), which is fixed by a nut (8). 2. The continuously variable wire diameter spring winding device according to claim 1, characterized in that the elongated cylindrical section (19) of the mandrel (1) is located in a section inside the rear top cone (6), and the lower part is provided with a strip-shaped Groove (20), is provided with limit pin (11) in the groove (20), and limit pin (11) is connected as interference fit with rear top cone (6).

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