US1320468A - Puanoqraph co - Google Patents
Puanoqraph co Download PDFInfo
- Publication number
- US1320468A US1320468A US1320468DA US1320468A US 1320468 A US1320468 A US 1320468A US 1320468D A US1320468D A US 1320468DA US 1320468 A US1320468 A US 1320468A
- Authority
- US
- United States
- Prior art keywords
- saddle
- shaft
- lathe
- movement
- cam
- 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 - Lifetime
Links
- 230000036461 convulsion Effects 0.000 description 2
- 230000003111 delayed Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/13—Pattern section
- Y10T82/135—Cam-controlled cutter
Definitions
- the present invention relates to backing offl lathes and is an improvement on existing lathes of a similar type.
- the drive of various members is obtained by means of a main driving shaft carrying three toothed pinions which each drive a group of different members.
- This method of grouping effects an easier and quieter operation of the lathe.
- the controlling shaft of all the members rotates the quickest and all the drives are effected through speed reducing gearing so that there is thus obtained' in the present lathe, movements which permit of the execution of precision work Without jerks or shocks.
- the distribution of the driving force is directed from the main controlling shaft to the three essential members of the machine.
- the first pinion on the general controlling shaft drives through a gearing which transmits the desired reduction in speed lto the spindle of the fixed headstock.
- the second pinion on the main controlling shaft drives the lead screw for the longitudinal movement of the saddle through a reversing arrangement and gearing.
- the third pinion on the main controlling shaft drives thev cani for the movement of the saddle through differential gear, helicoidal gearing, a worm and gearing.
- the differential gear serves to give to the backing off saddle a movement in advance or a delayed movement so as to follow the helix of the cutters with the lead screw.
- the general controlling shaft carries a l
- the exterior of the saddle carries a scale which indicates the depth to which the cutting is adjusted.
- Figure 1 of the accompanying drawing is a longitudinal vertical section of the machine.
- F ig. 2 is a vertical section on the line JL-'6.
- FIG. 3 is a'horizontal section on the line Fig. 4 drawn to an enlarged scale is a cross section of the saddle on the line c-/.
- Fig. 5 is an end View of the saddle drawn to the same scale as that of Fig. 4.
- the frame A of the lathe Figs. 1, 2, 3, 4, 5 is fitted as a single piece with the body of the fixed head-stock as in an ordinary lathe.
- the spindle B, Fig. 1 of the fixed headstock is constructed as in a lathe.
- the spindle B Fig. 1 carries a large toothed driving wheel D, Figs. 1 and 2, which receives its movement from a pinion E, Fig. 2.
- the pinion E is secured to its shaft which carries at its end a removable toothed wheel F. j
- the wheel F receives its movement from a pinion C, Figs. 1, 2, through the toothed wheels H and I integral with or secured to each other.
- the wheels H and I are arranged on a radial or change gear plate .I fixed to the back of the lathe A.
- the wheels F, H and I can be replaced by other wheels having a greater or less number of teeth so that the speed of rotation of the spindle B can be varied relatively to the main driving shaft K, Figs. l, 2 and 3. According to the' number of teeth of the cutter that it is desired to back off the relation above indicated is varied as desired.
- the main driving shaft K carries a stepped pulley L Figs. 1 and 3 which is rotated in any suitable manner.
- On the main driving shaft K are fixed two other pinions M, N, Fig. 3 one of which M controls the lead screw V through the reversing gear O, Fig. 1, its shaft P, Fig. l, gear Q, and the gearR, Figs. 2 and 3, and the other pinion N drives the cam S of the reproducing carriage through the wheel T, Figs. 1 and 2 the bevel wheel U integral therewith planetary pinions W of the difrferential gear and the shaft Y.
- the wheel T rigid with the bevel wheel IU andthe worm wheel l" turns on the shaft Z which is supported in the frame A of the lathe.
- the worm wheel I" communicates its movement to the helicoidal pinion R with which it gears.
- the pinion R is Ykeyed on the shaft Q which communicates its rotational movement to the shaft O Fig. 1 through the gear P Figs. l and 3.
- shaft O is provided with a worm'V which drives the wheel N rigid with the bevel pinion U which communicates this move- -ment to the bevel planetary pinions IV of the differential.
- the bevel pinion U receives a Vmovement in proportion to that of the bevel pinion U.
- the proportion of the teeth'on 4the gear P is calculated according to the pitch of the helix of the cutter to be formed.
- the cam S of the reproducing saddle is arranged on the feathered shaft Y on which it can slide in accordance with the longitudinal movement of the saddle.
- the cam S actuates the lever A Fig. 4 through a tappet B.
- the lever A is articulated on the base C of the reproducing saddle D.
- rIhe base C of the saddle can turn about the aXis g/-y inV order to give various inclinations in a horizontal plane to the saddle D and the base C.
- the slide block F By means of the screw u which is heldin the direction of its length by the cover piece p, the slide block F can be adjusted in the support E along the face of the lever A.
- the slide blockF When the slide blockF is lowered it approaches the point of contact with the lever atrthe center and consequently diminishes .the stroke of the saddle D andv inversely when the slide block is raised. rlhe slideblock F support N and the saddle D Yare returned into contact with the lever A by thespring G.
- the backing off saddle D Fig.. 5 and its basef C carrydivisions which rindicate the The.
- the saddle is arranged to receive a double tool carrying rest or any other arrangement of rotatable saddle or reproducer.
- a spindle a main driving shaft, variable speed gears connecting said spindle and shaft; a lead screw, gears, including ay differential, connecting the lead screw and said main driving shaft; a cam shaft, gears including a differential connecting tlie'cam shaft with the main driving shaft, a cam mounted for turning movement with and for longitudinal movement on the cam shaft; a base mounted for longitudinal movement and having a nut arranged on the lead screw, a reproducing saddle on the base, and a lever and tappet to ⁇ cause said saddle to be operated by the cam.
- a spindle a main driving shaft, variable speed gears connecting said spindley and shaft; a lead screw, gears, including a differential, connecting the lead screw and said shaft; a cam shaft gears including a differential connecting the camshaft with "the main driving shaft,ra cam mounted-for turning movement with and for longitudinal movement on the cam shaft; a base movable -by the lead screw, a lever articulated on the base, a reproducing saddle on the base, a support on the saddle, a guide block mounted on said support' for sliding movement on the saddle, means to adjust the guide block along the face of the lever to predetermine the stroke ⁇ of the saddle, a tappet to cause the cam to operateJ the lever, andaspring acting'on the saddle to impart Vreturn movement thereto.
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Description
H. HAMPE.
BACKING-OFF LATHE.
APPLICATION FILED JUNE 5.1918.
l ,320,468. Patented Nov. 4, 1919.
'we COLUMBIA PLANouwAr'N co., WASHINGTON, D. c.
H. HAMPE.
BACKING-OFF LATHE.
APPLICATIQN FILED JUNE 5.1918.
yEatented Nov. 4,1919- 3 SHEETS-SHEET 2.
H. HAMFE.
BACKING- oFF LATHE` APPLICATIONILED JUNE 5. 1918.
LSZGSS@ Patented Nov. 4, 1919.
3 SHEETS-SHEET 3.
fig.
TATS
BACKINGr-OFF LATHE.
Speccaton of Letters Patent.
Patented Nov. 4, 1919.
Application led .Tune 5, 1918. Serial No. 238,338.
To all whom it may concern:
Be it known that I, HoNoR HAMPE, a citi- Zen of the Republic of France, residing at 6 Rue de lUrbaine, Neuilly-sur-Seine, France, have invented certain new and useful Improvements in Backing-Off Lathes, of which the following is a specification.
The present invention relates to backing offl lathes and is an improvement on existing lathes of a similar type.
The drive of various members is obtained by means of a main driving shaft carrying three toothed pinions which each drive a group of different members. This method of grouping effects an easier and quieter operation of the lathe. The controlling shaft of all the members rotates the quickest and all the drives are effected through speed reducing gearing so that there is thus obtained' in the present lathe, movements which permit of the execution of precision work Without jerks or shocks.
The distribution of the driving force is directed from the main controlling shaft to the three essential members of the machine.
The first pinion on the general controlling shaft drives through a gearing which transmits the desired reduction in speed lto the spindle of the fixed headstock.
The second pinion on the main controlling shaft drives the lead screw for the longitudinal movement of the saddle through a reversing arrangement and gearing.
The third pinion on the main controlling shaft drives thev cani for the movement of the saddle through differential gear, helicoidal gearing, a worm and gearing.
The differential gear serves to give to the backing off saddle a movement in advance or a delayed movement so as to follow the helix of the cutters with the lead screw.
The arrangement of this member between the main driving shaft of the machine and the backing off cam characterizes the pres-- ent invention.
The general controlling shaft carries a l The exterior of the saddle carries a scale which indicates the depth to which the cutting is adjusted.
Figure 1 of the accompanying drawing is a longitudinal vertical section of the machine.
F ig. 2 is a vertical section on the line JL-'6.
3 is a'horizontal section on the line Fig. 4 drawn to an enlarged scale is a cross section of the saddle on the line c-/.
Fig. 5 is an end View of the saddle drawn to the same scale as that of Fig. 4.
The frame A of the lathe Figs. 1, 2, 3, 4, 5 is fitted as a single piece with the body of the fixed head-stock as in an ordinary lathe.
The spindle B, Fig. 1 of the fixed headstock is constructed as in a lathe.
The same applies to the tail-stock C, Fig. 1.
The spindle B Fig. 1 carries a large toothed driving wheel D, Figs. 1 and 2, which receives its movement from a pinion E, Fig. 2.
The pinion E is secured to its shaft which carries at its end a removable toothed wheel F. j
The wheel F receives its movement from a pinion C, Figs. 1, 2, through the toothed wheels H and I integral with or secured to each other. The wheels H and I are arranged on a radial or change gear plate .I fixed to the back of the lathe A. The wheels F, H and I can be replaced by other wheels having a greater or less number of teeth so that the speed of rotation of the spindle B can be varied relatively to the main driving shaft K, Figs. l, 2 and 3. According to the' number of teeth of the cutter that it is desired to back off the relation above indicated is varied as desired.
The main driving shaft K carries a stepped pulley L Figs. 1 and 3 which is rotated in any suitable manner. On the main driving shaft K are fixed two other pinions M, N, Fig. 3 one of which M controls the lead screw V through the reversing gear O, Fig. 1, its shaft P, Fig. l, gear Q, and the gearR, Figs. 2 and 3, and the other pinion N drives the cam S of the reproducing carriage through the wheel T, Figs. 1 and 2 the bevel wheel U integral therewith planetary pinions W of the difrferential gear and the shaft Y.
The wheel T rigid with the bevel wheel IU andthe worm wheel l" turns on the shaft Z which is supported in the frame A of the lathe. The worm wheel I" communicates its movement to the helicoidal pinion R with which it gears. The pinion R is Ykeyed on the shaft Q which communicates its rotational movement to the shaft O Fig. 1 through the gear P Figs. l and 3. shaft O is provided with a worm'V which drives the wheel N rigid with the bevel pinion U which communicates this move- -ment to the bevel planetary pinions IV of the differential. According to the nature of the gear P, the bevel pinion U receives a Vmovement in proportion to that of the bevel pinion U. The proportion of the teeth'on 4the gear P is calculated according to the pitch of the helix of the cutter to be formed.
For backing off straight cutters the movement of the bevel pinion V is blocked and the gear P is disengaged from its wheels. The lshaft Q and the helicoidal wheel R turn freely during this operation.
The cam S of the reproducing saddle is arranged on the feathered shaft Y on which it can slide in accordance with the longitudinal movement of the saddle.
The cam S actuates the lever A Fig. 4 through a tappet B.
The lever A is articulated on the base C of the reproducing saddle D. rIhe base C of the saddle can turn about the aXis g/-y inV order to give various inclinations in a horizontal plane to the saddle D and the base C. v
On the reproducing saddle VD Fig 4 is fixed a grooved support E in which there slides a guide block F.
By means of the screw u which is heldin the direction of its length by the cover piece p, the slide block F can be adjusted in the support E along the face of the lever A. When the slide blockF is lowered it approaches the point of contact with the lever atrthe center and consequently diminishes .the stroke of the saddle D andv inversely when the slide block is raised. rlhe slideblock F support N and the saddle D Yare returned into contact with the lever A by thespring G.
The backing off saddle D Fig.. 5 and its basef C carrydivisions which rindicate the The.
stroke and which is made by the backing off saddle D according to the position of the slide'block F. In order to account for the stroke of the saddle D, it is pushed from the dead point position to the right in Fig. 5. The saddle is arranged to receive a double tool carrying rest or any other arrangement of rotatable saddle or reproducer.
What I claim is l. In a lathe of the `class described, a spindle, a main driving shaft, variable speed gears connecting said spindle and shaft; a lead screw, gears, including ay differential, connecting the lead screw and said main driving shaft; a cam shaft, gears including a differential connecting tlie'cam shaft with the main driving shaft, a cam mounted for turning movement with and for longitudinal movement on the cam shaft; a base mounted for longitudinal movement and having a nut arranged on the lead screw, a reproducing saddle on the base, and a lever and tappet to` cause said saddle to be operated by the cam. Y f
2. In a lathe of the class described, a spindle, a main driving shaft, variable speed gears connecting said spindley and shaft; a lead screw, gears, including a differential, connecting the lead screw and said shaft; a cam shaft gears including a differential connecting the camshaft with "the main driving shaft,ra cam mounted-for turning movement with and for longitudinal movement on the cam shaft; a base movable -by the lead screw, a lever articulated on the base, a reproducing saddle on the base, a support on the saddle, a guide block mounted on said support' for sliding movement on the saddle, means to adjust the guide block along the face of the lever to predetermine the stroke `of the saddle, a tappet to cause the cam to operateJ the lever, andaspring acting'on the saddle to impart Vreturn movement thereto.
Y In testimonywhereof I have hereunto set my hand, in presence of two subscribing witnesses.Y Y
Y HONORE HAMPE.
`Witnesses:
PIERRE LEJARD, CHAs. P PRnssLY.
Copies of this patent may be obtained for-five cents each, by addressing the Commissioner of at'ent's,
f Y Washington, D. C. l
Publications (1)
Publication Number | Publication Date |
---|---|
US1320468A true US1320468A (en) | 1919-11-04 |
Family
ID=3387937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US1320468D Expired - Lifetime US1320468A (en) | Puanoqraph co |
Country Status (1)
Country | Link |
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US (1) | US1320468A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2426458A (en) * | 1944-08-30 | 1947-08-26 | Samuel M Renfrew | Back-off machine |
-
0
- US US1320468D patent/US1320468A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2426458A (en) * | 1944-08-30 | 1947-08-26 | Samuel M Renfrew | Back-off machine |
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