CN101422804B

CN101422804B - Torsion machine

Info

Publication number: CN101422804B
Application number: CN2008102389288A
Authority: CN
Inventors: 李振瑜; 刘皓磊; 张鸿涛
Original assignee: Tsinghua University
Current assignee: Tsinghua University
Priority date: 2008-12-05
Filing date: 2008-12-05
Publication date: 2011-03-30
Anticipated expiration: 2028-12-05
Also published as: CN101422804A

Abstract

The invention discloses a torsion machine, and more particularly relates to a device that processes metal wire into metal spring. The torsion machine mainly comprises an outer drum, an inner core, a wire feeding pipe, an outer drum resilience buffering part, a rotating disc, a chucking part, wire feeding rollers, a bracket, a torsion driving motor, a transmission shaft, a spring coiling driving motor and a spring coiling shaft. The torsion machine overcomes the disadvantages of the conventional cored torsion machines and non-cored torsion machines, and can draw back the core automatically, and the non-cored spring can be coiled continuously, with simple and compact structure.

Description

A kind of torsion machine

Technical field

The present invention relates to a kind of wire process equipment, particularly a kind of is the equipment of wire spring with wire machine-shaping.

Background technology

The basic technology that wire (simple metal or alloy) is processed into a spring be divided into have core around spring and centreless around spring.

It is wire one end to be fixed on bar-shaped on core around the basic principle of spring that core is arranged, and bar-shapedly around core and wire relative rotation takes place and makes wire be wrapped in a bar-shaped spring that forms on core by making.In patent CN2894890Y and CN200939493Y, wire one end is fixed on bar-shaped on core, rotates around core, wire is twined form a spring it on by motor-driven, by motor-driven wire upwards is being moved around mandrel simultaneously, to control different silk spring pitch; Patent JP2004096360A is wrapped in one section wire on core in advance, outside core, installing a sleeve additional again, be cut with on this sleeve an edge around mandrel to groove, wire is stuck in the groove, turnbarrel then can continue the silk spring to twine on core.

Owing to need to rely on around core, there is core can't produce continual silk spring continuously, and after one section silk spring forms, needs and will withdraw from around core around spring, caused the complexity of spring winding process.

Centreless is to send mechanical parts such as installing forming-tool on the route additional at wire around spring, forces wire to be bent to form a spring by force by stopping.Send at wire to install 3 forming-tools on the route additional as patent CN2081768U and US20060283226, the wire that uses the forming-tool compressing to send to makes its brake forming, thus relative position and cutter head by regulating cutter head and make time of contact wiry wire be bent to form the wire spring of different size.

Centreless has overcome around spring the shortcoming of core around spring, can twine the continuous fibers spring, but torsion machine cooperatively interacts around the multiple parts of spring process need, drive unit and transmission device complexity, thus cause the integrally-built complexity of torsion machine.

The invention discloses a kind of torsion machine.This machine construction is simply compact, twine wire in rotation on core and form the wire spring, and have and move back the core function automatically, can be continuous metal silk spring with wire machine-shaping, having overcome has shortcoming and the baroque shortcoming of centreless torsion machine that the core torsion machine can't be continuously shaped.

Summary of the invention

The objective of the invention is provides a kind of torsion machine at there being the core torsion machine can't be continuously shaped and the baroque shortcoming of centreless torsion machine, makes it simple and compact for structure, and has and move back the core function automatically, can be continuous metal silk spring with wire machine-shaping.

Technical scheme of the present invention is as follows:

A kind of torsion machine is characterized in that: described torsion machine comprises support 8, is fixed on the inner core 2 on the support, is axle and the urceolus 1 that rotate around inner core with the inner core, and wire-feeding pipe 3 is used to drive that urceolus rotates around spring drive unit and nest spring device 5; Described urceolus 1 front end cuts out an inclined-plane, and described wire-feeding pipe 3 is fixed on the described inclined-plane; Described around the spring drive unit by forming around spring drive motors 9, power transmission shaft 10, the rotating disk 5 that links to each other with power transmission shaft and the clamping unit 6 that is fixed on this rotating disk, described urceolus is connected with rotating disk by clamping body; On described rotating disk, also be provided with and be used to twine wire feed roller bearing 7 wiry; Described inner core 2 stretches out 0.5～1.5 millimeter of outer cylinder front end.

Technical characterictic of the present invention also is: be provided with urceolus elastic force buffer unit 4 between support and urceolus, described elastic force buffer unit adopts spring or spring shim, and described spring or spring shim are enclosed within on the inner core 2.

Another technical characterictic of the present invention is: the inclined-plane that described outer cylinder front end cuts out and the central axis of urceolus be at 45～and 60 ° of angles.

The present invention has the following advantages and the high-lighting effect: the present invention has effectively overcome has the core torsion machine can't be continuously shaped and the baroque shortcoming of centreless torsion machine, have characteristics simple and compact for structure, and have and move back the core function automatically, can with wire machine-shaping continuous metal silk spring.

Description of drawings

Fig. 1 is the structural representation of torsion machine provided by the invention.

Fig. 2 is processed into wire spring process schematic diagram for torsion machine with wire.

Fig. 3 is urceolus and wire-feeding pipe structural representation.

Fig. 4 is rotating disk, wire feed roller bearing and gripping mechanism structural representation.

Fig. 5 is support, inner core, elastic force buffer unit, around spring drive motors and power transmission shaft syndeton schematic diagram.

Among the figure: 1-urceolus; 2-inner core; 3-wire-feeding pipe; 4-urceolus elastic force delays parts; 5-rotating disk; 6-clamping unit; 7-wire feed roller bearing; 8-support; 9-around the spring drive motors; 10-power transmission shaft; 11-wind spring drive motors; The rotating shaft of 12-wind spring; 13-wire; 14-silk spring.

The specific embodiment

Below in conjunction with accompanying drawing operation principle of the present invention, structure and the course of work are described in further detail.

Fig. 1, Fig. 2 are the structural representation of torsion machine provided by the invention.This torsion machine comprises urceolus 1, inner core 2, and wire-feeding pipe 3, urceolus elastic force buffer unit 4, rotating disk 5, clamping unit 6, wire feed roller bearing 7, support 8, around spring drive motors 9, power transmission shaft 10, wind spring drive motors 11 and wind spring rotating shaft 12.Described urceolus 1 matches with inner core 2, and described wire-feeding pipe 3 is fixed on the described inclined-plane, crosses the cylinder center of circle and cuts out an inclined-plane.The inclined-plane can produce thrust to the silk spring that is wrapped on the inner core 2 when urceolus 1 rotation, silk spring 14 is constantly released forward.Described urceolus is connected with rotating disk by clamping body; Wire feed roller bearing 7 is installed on the described rotating disk; Described inner core 2 stretches out 0.5～1.5 millimeter of outer cylinder front end.Urceolus 1 is enclosed within on the inner core 2, serves as axle slip rotation with inner core 2, and inner core 2 is fixed on the support 8.Irritating in the wire-feeding pipe 3 has lubricating oil, is fixed on the urceolus 1, together rotates with urceolus 1.In order to prevent urceolus that silk spring card is disconnected, between support 8 and urceolus 1, be provided with urceolus elastic force buffer unit 4, described urceolus elastic force buffer unit adopts spring or spring shim, and described spring or spring shim are enclosed within on the inner core 2.Rotating disk 5 is nested on the support 8 and is coaxial with inner core 2, and rotating disk 5 is provided with clamping unit 6, it can be rotated synchronously urceolus 1 chucking with rotating disk 5.Wire feed roller bearing 7 is fixed on the rotating disk 5, above wire 13 is wrapped in advance as raw material.Be connected with rotating disk 5 by power transmission shaft 10 around spring drive motors 9, be used to drive rotating disk 5 rotations, its rotating speed is adjustable, and the angular velocity of rotation of control rotating disk 5 is 300～400r/min.All be with gear on rotating disk 5 and the power transmission shaft 10, the two is by gear drive.Wind spring drive motors 11 is connected with wind spring rotating shaft 12, is used to drive wind spring rotating shaft 12 rotations, and its rotating speed is adjustable, and the rotational line velocity interval of control wind spring rotating shaft 12 is 60～120mm/min.Wind spring rotating shaft 12 places inner core 2 before tangent with the axis of inner core 2, rotates under the driving of wind spring drive motors 11, is used for rolling silk spring 14.

As shown in Figure 3, the central module of torsion machine is the nested unit of urceolus 1 and inner core 2, wherein inner core 2 is fixed on the support 8, urceolus 1 serves as the axle rotation with it, form a silk spring 14 on the inner core 2 along with the rotating metallic silk 13 of urceolus 1 is wrapped in, cut an inclined-plane on the urceolus 1, the angle of inclined-plane and urceolus center line is 45 °～60 °, the inclined-plane of this angle can be pushed ahead silk spring 14 when rotated and can silk spring card is not disconnected, thereby makes silk spring 14 constantly be wound out.Wire-feeding pipe 3 is installed on the urceolus 1, wire 13 is played guide effect, irritating in the wire-feeding pipe 3 has lubricating oil, when wire 13 has been coated with one deck lubricating oil in its surface during by wire-feeding pipe 3.

As shown in Figure 4, clamping unit 6 is housed on the rotating disk 5, can it is rotated synchronously urceolus 1 chucking with rotating disk 5, wire feed roller bearing 7 also is housed on the rotating disk 5, the wire 13 as raw material can be twined on it in advance.

As shown in Figure 5, the whirligig of driving urceolus 1 rotation comprises that rotating disk 5, power transmission shaft 10 reach around spring drive motors 9, all are fixed on the support 8.Urceolus 1 is equipped with elastic force buffer unit 4 with support 8 supports.Rotating disk 5 by bearing holder (housing, cover) on support 8 and coaxial with inner core 2.

In the spring process, at first raw material metal silk 13 is wrapped in to prepare against on the wire feed roller bearing 7 and uses, manually pull out wire 13, be connected in the wind spring rotating shaft 12 after it is pulled through wire-feeding pipe 3, open wind spring drive motors 11, drive wind spring rotating shaft 12 rotations, then wire 13 constantly can be pulled out.Irritating in the wire-feeding pipe 3 has lubricating oil, and one deck lubricating oil is smeared on wire 13 surfaces.

Manually wire 13 is pressed on the inner core 2, and open around spring drive motors 9, by power transmission shaft 10 transmissions rotating disk 5 rotations and drive wire feed roller bearing 7 and urceolus 1 are together rotated, then wire 13 can be wrapped in and form a circle spiral on the inner core 2, along with the wire 13 that constantly then constantly has that rotates is wrapped in formation multiturn silk spring spiral on the inner core 2, need not to fix this moment, and the silk spring also can stably be wrapped on the inner core 2.

Because torsion machine urceolus 1 has an inclined-plane, then urceolus 1 constantly rotation wire 13 also can be utilized in to inner core 2 this inclined-plane will be spiral on the inner core 2 constantly push ahead, thereby constantly produce wire spring 14.

The wire spring 14 that twines out is in wind spring rotating shaft 12.The wind spring speed of wind spring rotating shaft 12 is coordinated mutually with the rotary speed of urceolus 1, can stablize and pull out the wire spring, and the rotary speed that the two is different is complementary, and can produce the silk spring of different pitch.

Tell about an example of making below:

Make a certain specification torsion machine, its inner core diameter 0.8mm, long 0.9mm, urceolus diameter 2.0mm.The feed metal silk is the stainless steel steel wire, 304# stainless steel, diameter 0.18mm.Regulate the wind spring speed of urceolus, can produce three kinds of silk springs of following specification around spring rotating speed and wind spring equipment:

	Spring diameter (mm)	Pitch (mm)	Around spring urceolus rotating speed (r/min)	Wind spring speed (mm/min)
					Specification 1	0.98	0.18	330	0
Specification 2	0.98	0.77	330	70
					Specification 3	0.98	1.25	330	110

Claims

1. torsion machine, it is characterized in that: described torsion machine comprises support (8), is fixed on the inner core (2) on the support, is axle and the urceolus (1) that rotates around inner core with the inner core, wire-feeding pipe (3), be used to drive the urceolus rotation around spring drive unit and nest spring device; Described urceolus (1) front end cuts out an inclined-plane, and described wire-feeding pipe (3) is fixed on the described inclined-plane; Described around the spring drive unit by forming around spring drive motors (9), power transmission shaft (10), the rotating disk (5) that links to each other with this power transmission shaft and the clamping unit (6) that is fixed on this rotating disk, described urceolus (1) is connected with rotating disk by clamping unit (6); On described rotating disk, also be provided with and be used to twine wire feed roller bearing wiry (7); Described inner core (2) stretches out 0.5～1.5 millimeter of outer cylinder front end.

2. according to the described torsion machine of claim 1, it is characterized in that: be provided with urceolus elastic force buffer unit (4) between support and urceolus, described urceolus elastic force buffer unit adopts spring or spring shim, and described spring or spring shim are enclosed within on the inner core (2).

3. according to the described torsion machine of claim 1, it is characterized in that: the inclined-plane that described outer cylinder front end cuts out and the central axis of urceolus be at 45～60 ° of angles.