US2084411A

US2084411A - Assembly machine and method

Info

Publication number: US2084411A
Application number: US82431A
Authority: US
Inventors: George F Robarge
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-05-29
Filing date: 1936-05-29
Publication date: 1937-06-22
Anticipated expiration: 1954-06-22

Description

June 22, 1937.

e. F. ROBARGE 2,084,411

ASSEMBLY MACHINE AND METHOD v Filed May 29, 1956 s Sheets-Sheet 1 INVEfNTOR. Gear 3 F. zoba June 22, 1937;. c;. F. ROBARGE 2,084,411

ASSEMBLY MACHINE AND METHOD ,Filed May 29, 1936 3 Sheets-Sheet 2 INVENTOR. G e 2c bar 6 ATTORNEY.

llunezz, 1937.

s. F. RoBARE ASSEMBLY MACHINE AND METHOD *Filed May 29, 19-36 3 Sheets-Sheet 3 INVENTOR.

Geo/7 's 1: Jaw/J Patented June 22, 1937 UNITED STATES PATENT OFFIQE 3 Claims.

This application relates to assembly machines and methods.

The machine herein disclosed operates to form a coil spring from a spool of wire and insert the Same into a cup, thus forming the assembly of a cup containing a coiled spring.

For an understanding of the machine herein disclosed reference should be had to the accompanying drawings. In these drawings,

1 Fig. 1 is a front View of the machine as if in the direction of the arrow I of Fig. 2;

Fig. 2 is a left side view of the same as if in the direction of the arrow 2 of Fig. 1;

Figs. 3 and 4 are elevation and section views of the assembly of a cup and spring;

Figs. 5, 6 and 7 show different steps in the forming of the coil spring;

Figs. 8, 9 and 10 show different steps in the assembling of the coil spring in the cup;

Fig. 11 is a View as if in the direction of arrow H of Fig. 10.

The machine disclosed comprises a rotating spindle l0 telescoped within a stationary collar ll having diametrically opposed slots l2 adapted to register, when the spindle is at rest, with diametrically opposed slots Above the spindle and collar is a stationary head l5 having radially disposed blades l6 and H operatively associated with means for causing. the

blades to move radially towards and away from the axis ofthe spindle. Adjacent to the spindle is a pedestal upon which is supported a feed guide 18, and also adjacent to the spindle is pivotally mounted on a pedestal IS a flap 20, upon which are adapted to be disposed successively, cups 2| into which are to be inserted coil springs. Also adjacent to the spindle is a coil holder 22 pivotally mounted to move towards and away from the spindle.

40 The operation of the machine is as follows:

Wire 23 is fed in the direction indicated on Fig. 1 from a spool through the feed guide 18 until the leading end of the same registers with a slot [4 in the spindle. Thereupon the operating 5 mechanism causes the blade Hi to advance to wards the spindle so that it will bend the leading end of the wire into the slot l4 and interlock it to the spindle in the manner shown. The spindle is then caused to rotate several turns so 50 that it will coil the wire into a coil around the spindle as a mandrel, after which the operating means of the machine will cause the blade IT to advance and cut off the coil from the remainder of the wire being fed into the machine, and the 55 blade I! is so formed that in cutting off the coil M of the spindle.

it will also bend the trailing end of Qhe coil into the other one of the two slots I4 of the spindle so that when the coil is completely formed on the spindle it will have both of its ends tucked into the slots M of the spindle and the coil will 5 thus be interlocked into the spindle. At this time the coil holder 22 will be moved towards the spindle, so as to engage the coil and prevent it from expanding when the coil is pushed off the spindle axially by means about to be described. 10

With the coil so held the flap 2B is rotated to the spindle so that its cup 2| will telescope over or be disposed in registry with the end of the spindle, in position to receive the coil; thereupon blades 24 disposed in the slots 92 of the 15 collar, which are then registered with the slots M of the spindle, are advanced towards the coil and operate to push the coil off the spindle and into the cup, whereupon the coil will expand and frictionally hold itself in the cup. Thereafter, the flap 20 is rotated back to its original position, so that the cup 2| containing the coil may be moved therefrom and replaced by another cup, empty for receiving a coil.

I claim:

1. A machine for forming a coil from a supply of stock sufficient to provide many coils and inserting it into a cup which comprises a spindle having a free end, means for feeding stock tangentially across the spindle, means for secur- 3 ing the leading end of stock fed across the spindie to the spindle, means for rotating the spin- 1 dle to coil the leading end of the stock, means for severing the stock after the spindle has come to rest with the coil formed thereon and for securing the trailing end of thecoil to the spindle, and for securing the leading end of the stock to the spindle for the next coil winding, means for disposing a cup in registry with the end of the spindle in position to receive the coil, and means 40 for pushing the coil off the spindle and into the cup, and means for removing the assembled cup .and coil from, in registry with the free end of the spindle, and means for causing the coil pushing means to operate only after the coil is completely wound and cut off the stock and after the leading end of the stock for the next coil to be wound is secured to the spindle.

2. A machine for forming a coil from a supply of stock sufi'icient to provide many coils and inserting it into a cup which comprises a spindle having a free end, means for feeding stock tangentially across the spindle, means for securing the leading end of stock fed across the spindle to the spindle, means for rotating the spindle to ering the stock after the spindle has come to rest with the coil formed thereon and for securing the trailing end of the coil to the spindle, and for' securing the leading end of the stock to the spindie for the next coil winding, means for dispos ing a cup in registry with the end of the spindle in'position to receive the coil, and means for causing relative axial movement between the spindle and the coil so that the coil will leave the spindle and dispose itself freely within the cupiand means for removing the assembled cup and coil from in registry with the free end of the spindle, and means for causing the relative axial movement causing means aforesaid to operate only after the coil is completely woundand cut forming a coil on the spindle, cutting the coil off the stock and again securing the leading end of the stock to the spindle, disposing a cup in registry with the spindle, and thereafter'causing relative axial movement of the completedcoil and spindle to cause thecompleted coil to leave the spindle and dispose itself in the cup free of the spindle.

GEORGE F. ROBARGE. 15