GB1238409A - - Google Patents
Info
- Publication number
- GB1238409A GB1238409A GB1238409DA GB1238409A GB 1238409 A GB1238409 A GB 1238409A GB 1238409D A GB1238409D A GB 1238409DA GB 1238409 A GB1238409 A GB 1238409A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mandrel
- guide
- lead screw
- spring
- counter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F3/00—Coiling wire into particular forms
- B21F3/02—Coiling wire into particular forms helically
- B21F3/04—Coiling wire into particular forms helically externally on a mandrel or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
1,238,409. Making springs; coiling helices. MOOG INDUSTRIES Inc. 10 July, 1969, No. 34816/69. Headings B3A and B3E. [Also in Division G3] A machine for forming a coil spring comprises a cylindrical mandrel 11 means for rotating the mandrel, a guide 22 for directing the rod stock to the mandrel, means for moving the guide along the mandrel and means for changing the rate of travel of the guide at preselected points in its path along the mandrel. The spring winding machine comprises a bed 1 supporting an overhead member 4 mounted on brackets 5 and 6. A tail-stock carrying the mandrel 11 is slidable along the member 4 by means of a fluid pressure motor and the inner end of the tailstock is supported in a chuck 12 rotatable by a gear train within a gear-box 14 driven by a motor 15. Between parallel guide rods mounted in plates 16 and 17 is a lead screw 20 carrying the bar guide 22 having a pair of parallel guide fingers through which the bar stock is fed on to the mandrel. The speed of rotation of the lead screw is controlled by a servo amplifier 34 which actuates a servomotor 30. The mandrel is connected to a sensing transducer or photoelectric encoder 40 which emits electric pulses responsive to the angular displacement of the mandrel for reception by an electronic pulse counter 36 in a console assembly C (Fig. 2). The command voltage circuit 37 which is preadjust. able is connected to the counter 36 and incorporates a number of adjustable voltages obtained by potentiometers which are preset to provide an output which is fed to the servo amplifier 34. The counter is synchronized with the drive system for the mandrel to start the formation of a spring, release the finished spring and reset for the next cycle. The mandrel rotates at a constant speed while the lead screw rotates at a selected rate thus varying the linear velocity of the bar guide which controls the number of coils formed and consequently the pitch. Thus variable pitch coil springs may be produced.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3481669 | 1969-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1238409A true GB1238409A (en) | 1971-07-07 |
Family
ID=10370263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1238409D Expired GB1238409A (en) | 1969-07-10 | 1969-07-10 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1238409A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0252211A2 (en) * | 1986-07-09 | 1988-01-13 | Thema-Federn GmbH & Co. KG | Machine for winding springs |
-
1969
- 1969-07-10 GB GB1238409D patent/GB1238409A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0252211A2 (en) * | 1986-07-09 | 1988-01-13 | Thema-Federn GmbH & Co. KG | Machine for winding springs |
EP0252211A3 (en) * | 1986-07-09 | 1988-03-30 | Thema Federn Gmbh & Co Kg | Machine for winding springs |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |