SU692179A1 - Machine for hot winding of springs - Google Patents

Abstract

A MACHINE FOR HOT SPRING OF THE SPRINGS, containing a spindle, a winding mandrel and a step-forming mechanism, which is distinguished by the fact that, in order to increase productivity and expand technological capabilities, it is equipped with sliders mounted on the spindle and evenly spaced around the circumference, contacting with using rollers fixed on them with an internal profile surface of the program drum, and located. on the sliders with the possibility of axial and radial movements relative to the frame with spring-loaded points Using the two-arm levers hinged on the sliders, they interact with the outer surface of the software drum. • .JOjf 8 4 12 74 9 • ^ '^^^ "' (La > & Co to • ^ with \\\\\ \ V ^ NNN > & X \ 4 \

Description

The invention relates to equipment for winding springs, in particular, equipment for winding springs on a spiraled mandrel made of ripytKOB in a hot condition. A device is known for a hot shkirushn irg bar, which contains parallel-arranged frames and a copier with a helical groove. At the same time, the mandrel is inserted with one end into the spindle cartridge, and the other end of the mandrel is supported by the stop 1. All the mechanisms of the smbm tyr1evana device on the frame. The spring pitch is formed by the screw groove of the copier, and for nojpKaTHft of the reference gauge, a segment insert is fixed on the track track of the groove. However, this design does not provide high productivity, so the springs are made by pulling the mandrel and the coiled spring. Spywheel with a screw groove only for the manufacture of a spring of 1 × 5THriopas Meipa yakrio dyštru / and in length, which reduces the technological capabilities of the device. 7 7 invents - rt and e vody on the sliders with the possibility of axial and radial movements of the 3rd section of the frame are spring-loaded yy springs, which through the double gang razhgi, hinged on the sliders, interact with the outer surface of the Aban bar graph. Fig. 1 shows the kinematic diagram of the proposed machine; the installation and operation diagram of the tools 1 | th; 1 | viv il ,, 7. The machine contains, at a speed of 2 speeds, the spindle 3 C evenly spaced by sliders 4 with the possibility of axial displacement from the internal profile of the 5th fipbram of the drum through the 7H7Gtolkatёлl roller B. On 1 each floor: zune 4 U the clamp 9 is installed with the possibility of radial movement from the external profile 10 of the program drum b through the rshjk 11, rjag TY th sy 13. Spring 13 With | be: bakes to press b Bout no billet blanks, a; spring 14 - constant pressing of roller 11 to drum profile 10 b. On the 3 spins, the console is fixed to 2E.11 TS, and the 9p p | 1p: ka 16 press in the frmsht & a: viU ftIlж 7 and sepxHotiCb 66692179 according to the outer diameter of the spring 17 and the workpiece diameter 18. The pitch forming mechanism is made in the form of an oscillating axle 19 of the hilt 20 driven by a ram 21. The lever movement is limited by rigid adjustable stops 22 and 23. Inside the lever there is a paw leg 24, which has at one end a pribi lined bevel 25 for the bend of the spring 26 part of the spring . On 1p & of the workpiece 18, when coiled, the spring is carried out by a guide stop 27, which is mounted in the lever .28 similarly to the step foot 24, the lever 28 is clamped by the stops stationary. To collect the finished springs 17 5, the receiving device 29 is used. The sensor 30 is used for counting the number / wound turns. The program drum b is designed so that during rotation of tandel 3 each bar 16 performs the following movements: at station I-II performs a pressing approach to the workpiece and pressing it to the mandrel / at site 1I-III, tracking the pressed workpiece, at site lll-lV Freedom; | 117р% с5вкй from the clamp to the v mandrel; on the section 1U-1 - the axial movement of the slats 16 in order to bypass the step foot 24 and the straight section of the workpiece 18 .. The machine works as follows. The blank 18 is fed to the mandrel 15 under the guide abutment 27 and one of the bars 16, which is in an upright position. Then, from drive 1 through kopo6Ky of speeds 2, rotation is transmitted to spindle 3, and with it the mandrel 15 and the bars 16, making movements along the indicated cycle: l in section I-II is carried out. pod 16 of the strap 16 to the workpiece 18, pressing the end of the billet to the mandrel 15 and accompanying it to position III, in the IlI-lV section, a part of the spring is wound free from pressing to the mandrel and. falls on the bevel of the walking foot; , on the section 1U-1, the strap, having made the movement, goes under the walking foot 24 and the workpiece 18, returning to its original position, Step foot 24 is fixed with the help of Pore 23 so that the spring is wound with a step equal to the step of the reference turn. After. A sensor 0.75 turns of the mandrel sends a signal from the sensor 30 to the power cylinder 21, which moves the lever 20 to the second stop 22, making the step to the desired one. After rt "counting the required number of turns of the coiled spring, sensor 30 sends a signal to the stitching cylinder 21, which returns the walking foot to the original

position, thus forming the reference turn. Ready springs L7 comes off the mandrel 15 and gets the receiving device 29.

The successive movement of all the strips 16 with a constant rotation of the mandrel allows the spring and spring process to be continuously operated, and the step-wise mechanism allows one to obtain the necessary step with simultaneous

Removal from mandrel. The length of the spring is not limited,

To change the direction of the helix of the spring of the same diameter, step foot 24 and directions of the stop 27 should be swapped and the spindle rotated to another CTOjiOHy. The loading 18 in this case is fed under the mandrel and rests on the guide rest.

15

FIG. 2

Claims (1)

A MACHINE FOR HOT SPRING OF SPRINGS, containing a spindle, a winding mandrel and a step-forming mechanism, characterized in that, in order to increase productivity and expand technological capabilities, it is equipped with spindles mounted on the spindle and evenly spaced around the circumference, in contact with the rollers fixed to them with internal profile surface of the software drum, and located on the sliders with the possibility of axial and radial movements relative to the mandrel spring-loaded clamp mi, which through two shoulders levers pivotally mounted on sliders interact with the outer surface of the program drum. • -SU ™ 692179> FIG. 1 1 692179