GB840431A - Stop devices for facilitating automatic feeding of bar stock in automatic lathes and like machine tools - Google Patents
Stop devices for facilitating automatic feeding of bar stock in automatic lathes and like machine toolsInfo
- Publication number
- GB840431A GB840431A GB1541357A GB1541357A GB840431A GB 840431 A GB840431 A GB 840431A GB 1541357 A GB1541357 A GB 1541357A GB 1541357 A GB1541357 A GB 1541357A GB 840431 A GB840431 A GB 840431A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stop
- stock
- bar
- auxiliary
- carrier
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B13/00—Arrangements for automatically conveying or chucking or guiding stock
- B23B13/12—Accessories, e.g. stops, grippers
- B23B13/121—Stops
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding Of Workpieces (AREA)
Abstract
840,431. Automatic-lathe details. RATBY ENGINEERING CO. Ltd. May 8, 1958 [May 15, 1957], No. 15413/57. Class 83 (3). An automatic-lathe or like machine-tool for working upon bar-stock fed through a collet, is equipped with a normal stop-device for determining the length of stock required for a workpiece and has an auxiliary stop device for determining the waste length-of-stock to be cut from a new stock-bar for trimming. The auxiliary stop blade 2a, Figs. 5 and 6, may be mounted through a carrier 3 clamped to the usual stock-stop-pivot 7, the latter stop 1 extending in a position beyond the auxiliary stop. This stop is pivoted at 10 on the carrier, and the end opposite the stop-face is located in a pocket formed in a block 16, Fig. 6, secured to the carrier. The stop-end is biased towards the lathe &c., collet C by a spring 11 at the pivot, and a torsion spring 14a tends to turn the auxiliary stop towards the work-axis. Operation.-When the remnant of stock-bar which is too short for a workpiece and, therefore, does not reach the normal stop, is pushed out of the collet by a new stock-bar, the auxiliary stop 2a, which at this time is pressed towards the collet-axis by torsion spring 14a, is released to take up a position in front of the new stock-bar. The latter is pushed against the auxiliary stop and compresses bias-spring 11 until this stop bears against its abutment surface formed by the flat side of carrier 3 adjacent the collet. The stock-bar is now in a position to have a short end cut-off by the normal parting-tool, to thus trim the end of the new bar ready for a new set of workpieces to be produced. The auxiliary stop is moved away prior to this by the normal movement of the main stock-stop 1 and support-rod 7. Modifications.-In an arrangement where the usual radially-moved stock-stop is replaced by, say, a turret-stop 26, Fig. 9, the auxiliary stop 18 is supported in a carrier 19 secured to the machine headstock. Springs 24, 21, effect the transverse and axial-bias, respectively, of the stop, and face 19a of the carrier is used as the abutment surface. The stop is moved against the workpiece B at each cycle of linkage 22, 23, operated from the machine camshaft. Other variations in the fixing of the auxiliary stop are described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1541357A GB840431A (en) | 1957-05-15 | 1957-05-15 | Stop devices for facilitating automatic feeding of bar stock in automatic lathes and like machine tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1541357A GB840431A (en) | 1957-05-15 | 1957-05-15 | Stop devices for facilitating automatic feeding of bar stock in automatic lathes and like machine tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB840431A true GB840431A (en) | 1960-07-06 |
Family
ID=10058709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1541357A Expired GB840431A (en) | 1957-05-15 | 1957-05-15 | Stop devices for facilitating automatic feeding of bar stock in automatic lathes and like machine tools |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB840431A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1294784B (en) * | 1961-10-03 | 1969-05-08 | Textron Inc | Device for ejecting unusable end sections of material bars for a bar shearing device which z. B. a screw or bolt press is arranged upstream |
| DE1301690B (en) * | 1963-12-07 | 1969-08-21 | Hatebur Ag F B | Method and device for automatically controlling the elimination of a predeterminable number of beginning and end pieces that arise when dividing material bars into a plurality of end pieces of the same length |
| US3762248A (en) * | 1971-10-07 | 1973-10-02 | American Standard Inc | Powered stop for bar cutting machines |
| CN112453577A (en) * | 2020-11-12 | 2021-03-09 | 中国石油大学(华东) | Slotting and blanking integrated radial breaking-off low-stress blanking machine |
-
1957
- 1957-05-15 GB GB1541357A patent/GB840431A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1294784B (en) * | 1961-10-03 | 1969-05-08 | Textron Inc | Device for ejecting unusable end sections of material bars for a bar shearing device which z. B. a screw or bolt press is arranged upstream |
| DE1301690B (en) * | 1963-12-07 | 1969-08-21 | Hatebur Ag F B | Method and device for automatically controlling the elimination of a predeterminable number of beginning and end pieces that arise when dividing material bars into a plurality of end pieces of the same length |
| US3762248A (en) * | 1971-10-07 | 1973-10-02 | American Standard Inc | Powered stop for bar cutting machines |
| CN112453577A (en) * | 2020-11-12 | 2021-03-09 | 中国石油大学(华东) | Slotting and blanking integrated radial breaking-off low-stress blanking machine |
| CN112453577B (en) * | 2020-11-12 | 2023-08-29 | 中国石油大学(华东) | Slotting and blanking integrated radial breaking low-stress blanking machine |
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