Machine for forming holes in angle rings or the like

Claim 2

A machine for forming holes in a generally circular workpiece, comprising an indexing head disposed in a generally vertical plane, means supporting said indexing head for rotation about a generally horizontal axis, clamping means on said head for securing the workpiece thereto in a generally vertical plane, power indexing drive means for turning said indexing head to a series of predetermined positions, a hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said indexing head to bring said hole-forming device into operative relation to said workpiece, and power feeding means for operating said carriage means in opposite directions, said clamping means including a plurality of angularly spaced jaws, guide means on said indexing head and supporting said jaws for generally radial inward and outward movement, and an operating mechanism for simultaneously moving said jaws along said guide means, said operating mechanism comprising a plurality of feed screws rotatably mounted on said indexing head for simultaneously moving said respective jaws, and clamp drive means for simultaneously rotating said feed screws.

Claim 3

A machine according to claim 1, in which said clamp drive means comprises a rotatable shaft coaxial with said indexing head, and gear means forming connections between said rotatable shaft and said feed screws.

Claim 4

A machine according to claim 2, in which said gear means includes driven bevel gears on said feed screws, and a driving bevel gear on said shaft and meshing with said driven bevel gears.

Claim 5

A machine according to claim 2, including clamp power actuating means connected to said rotatable shaft.

Claim 6

A machine for forming holes in a generally circular workpiece, comprising an indexing head disposed in a generally vertical plane, means supporting said indexing head for rotation about a generally horizontal axis, clamping means on said head for securing the workpiece thereto in a generally vertical plane, power indexing drive means for turning said indexing head to a series of predetermined positions, a hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said indexing head to bring said hole-forming device into operative relation to said workpiece, and power feeding means for operating said carriage means in opposite directions, said carriage means including a cross carriage for supporting said hole-forming device, and means supporting said cross carriage for floating movement in a direction transverse to the plane of the workpiece.

Claim 7

A machine for forming holes in a generally circular workpiece, comprising an indexing head disposed in a generally vertical plane, means supporting said indexing head for rotation about a generally horizontal axis, clamping means on said head for securing the workpiece thereto in a generally vertical plane, power indexing drive means for turning said indexing head to a series of predetermined positions, a hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said indexing head to bring said hole-forming device into operative relation to said workpiece, and power feeding means for operating said carriage means in opposite directions, said carriage means including a cross carriage for supporting said hole-forming device, and means supporting said cross carriage for floating movement in a direction transverse to the plane of the workpiece.

Claim 8

A machine according to claim 5, including biasing means for restraining the free-floating movement of said cross carriage.

Claim 9

A machine according to claim 5, including resilient means for restraining the free-floating movement of said cross carriage.

Claim 10

A machine for forming holes in a generally circular workpiece, comprising an indexing head disposed in a generally vertical plane, means supporting said indexing head for rotation about a generally horizontal axis, clamping means on said head for securing the workpiece thereto in a generally vertical plane, power indexing drive means for turning said indexing a hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said indexing head to bring said hole-forming device into operative relation to said workpiece, and power feeding means for operating said carriage means in opposite directions, said carriage means including a reciprocable carriage for supporting said hole-forming device, means supporting said reciprocable carriage for floating movement in a generally radial direction relative to the axis of said indexing head, and follower means connected to said reciprocable carriage for causing said carriage to follow the periphery of the workpiece.

Claim 11

A machine for forming holes in a generally circular workpiece, comprising an indexing head disposed in a generally vertical plane, means supporting said indexing head for rotation about a generally horizontal axis, clamping means on said head for securing the workpiece thereto in a generally vertical plane, power indexing drive means for turning said indexing a hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said indexing head to bring said hole-forming device into operative relation to said workpiece, and power feeding means for operating said carriage means in opposite directions, said carriage means including a reciprocable carriage for supporting said hole-forming device, means supporting said reciprocable carriage for floating movement in a generally radial direction relative to the axis of said indexing head, and follower means connected to said reciprocable carriage for causing said carriage to follow the periphery of the workpiece.

Claim 12

A machine according to claim 8, in which said follower means includes a roller for engaging and following the periphery fo the workpiece.

Claim 13

A machine for forming holes in a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, clamping means on said head for securing the workpiece thereto, power indexing drive means for turning said indexing head to a series of positions, hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said workpiece, and power feeding means for operating said carriage means in opposite directions, said carriage means including a cross carriage for supporting said hole-forming device, and means supporting said cross carriage for flOating movement in a direction transverse to the plane of the workpiece.

Claim 14

A machine for forming holes in a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, clamping means on said head for securing the workpiece thereto, power indexing drive means for turning said indexing head to a series of positions, hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said workpiece, and power feeding means for operating said carriage means in opposite directions, said carriage means including a cross carriage for supporting said hole-forming device, and means supporting said cross carriage for flOating movement in a direction transverse to the plane of the workpiece.

Claim 15

A machine according to claim 10, including biasing means for restraining the floating movement of said cross carriage.

Claim 16

A machine according to claim 10, including resilient means for restraining the floating movement of said cross carriage.

Claim 17

A machine for forming holes in a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, clamping means on said head for securing the workpiece thereto, power indexing drive means for turning said indexing head to a series of positions, a hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said workpiece, and power feeding means for operating said carriage means in opposite directions, said carriage means including a reciprocable carriage for supporting said hole-forming device, means supporting said reciprocable carriage for floating movement in a generally radial direction relative to the axis of said indexing head, and follower means connected to said reciprocable carriage for causing said carriage to follow the periphery of the workpiece.

Claim 18

A machine for forming holes in a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, clamping means on said head for securing the workpiece thereto, power indexing drive means for turning said indexing head to a series of positions, a hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said workpiece, and power feeding means for operating said carriage means in opposite directions, said carriage means including a reciprocable carriage for supporting said hole-forming device, means supporting said reciprocable carriage for floating movement in a generally radial direction relative to the axis of said indexing head, and follower means connected to said reciprocable carriage for causing said carriage to follow the periphery of the workpiece.

Claim 19

A machine according to claim 13, in which said follower means includes a roller for engaging and following the periphery of the workpiece.

Claim 20

A machine for forming holes in a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, 9 clamping means on said head for securing the workpiece thereto, power indexing drive means for turning said indexing head to a series of positions, a hole-forming device disposed adjacent said indexing head, carriage means for supporting said hole-forming device, means supporting said carriage means for floating movement in a generally radial direction relative to the axis of said indexing head, and follower means connected to said carriage means for causing said carriage means to follow the periphery of the workpiece.

Claim 21

A machine for forming holes in a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, 9 clamping means on said head for securing the workpiece thereto, power indexing drive means for turning said indexing head to a series of positions, a hole-forming device disposed adjacent said indexing head, carriage means for supporting said hole-forming device, means supporting said carriage means for floating movement in a generally radial direction relative to the axis of said indexing head, and follower means connected to said carriage means for causing said carriage means to follow the periphery of the workpiece.

Claim 22

A machine according to claim 15, in which said follower means includes a roller for engaging and following the periphery of the workpiece.

Claim 23

A machine according to claim 15, in which said carriage means includes a cross carriage for supporting said hole-forming device, and means supporting said cross carriage for floating movement in a direction transverse to the plane of the workpiece.

Claim 24

A machine according to claim 17, including biasing means for restraining the floating movement of said cross carriage.

Claim 25

A machine according to claim 17, including resilient means for restraining the floating movement of said cross carriage.

Claim 26

A machine for forming holes in a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, clamping means on sid head for securing the workpiece thereto, power indexing drive means for turning said indexing head to a series of positions, a hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said workpiece, and power feeding means for operating said carriage means in opposite directions, said clamping means including a plurality of angularly spaced jaws, guide means on said indexing head and supporting said jaws for generally radial inward and outward movement, and an operating mechanism for simultaneously moving said jaws along said guide means, said operating mechanism comprising a plurality of feed screws rotatably mounted on said indexing head for simultaneously moving said respective jaws, and clamp drive means for simultaneously rotatinG said feed screws.

Claim 27

A machine for forming holes in a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, clamping means on sid head for securing the workpiece thereto, power indexing drive means for turning said indexing head to a series of positions, a hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said workpiece, and power feeding means for operating said carriage means in opposite directions, said clamping means including a plurality of angularly spaced jaws, guide means on said indexing head and supporting said jaws for generally radial inward and outward movement, and an operating mechanism for simultaneously moving said jaws along said guide means, said operating mechanism comprising a plurality of feed screws rotatably mounted on said indexing head for simultaneously moving said respective jaws, and clamp drive means for simultaneously rotatinG said feed screws.

Claim 28

A machine according to claim 20, in which said clamp drive means comprises a rotatable shaft coaxial with said indexing head, and gear means forming connections between said rotatable shaft and said feed screws.

Claim 29

A machine according to claim 21, in which said gear means includes driven bevel gears on said feed screws, and a driving bevel gear on said shaft and meshing with said driven bevel gears.

Claim 30

A machine according to claim 22, including clamp power actuating means connected to said rotatable shaft.

Claim 31

A machine for performing operations on a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, clamping means on said head for securing the workpiece thereto, indexing drive means for turning said indexing head to a series of positions, and a device disposed adjacent said indexing head for performing operations on said workpiece, said clamping means including a plurality of angularly spaced jaws, guide means on said indexing head and supporting said jaws for generally radial inward and outward movement, and an operating mechanism for simultaneously moving said jaws along said guide means, said operating mechanism comprising a plurality of feed screws rotatably mounted on said indexing head for simultaneously moving said respective jaws, and clamp drive means for simultaneously rotating said feed screws.

Claim 32

A machine for performing operations on a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, clamping means on said head for securing the workpiece thereto, indexing drive means for turning said indexing head to a series of positions, and a device disposed adjacent said indexing head for performing operations on said workpiece, said clamping means including a plurality of angularly spaced jaws, guide means on said indexing head and supporting said jaws for generally radial inward and outward movement, and an operating mechanism for simultaneously moving said jaws along said guide means, said operating mechanism comprising a plurality of feed screws rotatably mounted on said indexing head for simultaneously moving said respective jaws, and clamp drive means for simultaneously rotating said feed screws.

Claim 33

A machine according to claim 24, in which said clamp drive means comprises a rotatable shaft coaxial with said indexing head, and gear means forming connections between said rotatable shaft and said feed screws.

Claim 34

A machine according to claim 25, in which said gear means includes driven bevel gears on said feed screws, and a driving bevel gear on said shaft and meshing with said driven bevel gears.

Claim 35

A machine according to claim 26, including clamp power actuating means connected to said rotatable shaft.

Claim 36

A machine for forming holes in a generally circular workpiece, comprising an indexing head disposed in a generally vertical plane, means supporting said indexing head for rotation about a generally horizontal axis, clamping means on said head for securing the workpiece thereto in a generally vertical plane, power indexing drive means for turning said indexing head to a series of predetermined positions, a hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said indexing head to bring said hole-forming device into operative relation to said workpiece, and power feeding means for operating said carriage means in opposite directions, said clamping means including a plurality of angularly spaced jaws, guide means on said indexing head and supporting said jaws for generally radial inward and outward movement, and an operating mechanism for simultaneously moving said jaws along said guide means, said operating mechanism comprising a plurality of positive drive trains mounted on said indexing head for simultaneously moving said respective jaws, and clamp drive means for simultaneously operating said drive trains.

Claim 37

A machine for forming holes in a generally circular workpiece, comprising an indexing head disposed in a generally vertical plane, means supporting said indexing head for rotation about a generally horizontal axis, clamping means on said head for securing the workpiece thereto in a generally vertical plane, power indexing drive means for turning said indexing head to a series of predetermined positions, a hole-forming device disposed adjacent said indexing head, carriage means supporting said hole-forming device for movement in a generally radial direction relative to said indexing head to bring said hole-forming device into operative relation to said workpiece, and power feeding means for operating said carriage means in opposite directions, said clamping means including a plurality of angularly spaced jaws, guide means on said indexing head and supporting said jaws for generally radial inward and outward movement, and an operating mechanism for simultaneously moving said jaws along said guide means, said operating mechanism comprising a plurality of positive drive trains mounted on said indexing head for simultaneously moving said respective jaws, and clamp drive means for simultaneously operating said drive trains.

Claim 38

A machine for forming holes in a generally circular workpiece, comprising an indexing head disposed in a generally vertical plane, means supporting said indexing head for rotation about a generally horizontal axis, clamping means on said head for securing the workpiece thereto in a generally vertical plane, power indexing drive means for turning said indexing head to a series of predetermined positions, and a hole-forming device disposed adjacent said indexing head for forming holes in said workpiece, said clamping means including a plurality of angularly spaced jaws, guide means on said indexing head and suppOrting said jaws for generally radial inward and outward movement, and an operating mechanism for simultaneously moving said jaws along said guide means, said operating mechanism comprising a plurality of positive drive trains mounted on said indexing head for simultaneously moving said respective jaws, and clamp drive means for simultaneously operating said drive trains.

Claim 39

A machine for forming holes in a generally circular workpiece, comprising an indexing head disposed in a generally vertical plane, means supporting said indexing head for rotation about a generally horizontal axis, clamping means on said head for securing the workpiece thereto in a generally vertical plane, power indexing drive means for turning said indexing head to a series of predetermined positions, and a hole-forming device disposed adjacent said indexing head for forming holes in said workpiece, said clamping means including a plurality of angularly spaced jaws, guide means on said indexing head and suppOrting said jaws for generally radial inward and outward movement, and an operating mechanism for simultaneously moving said jaws along said guide means, said operating mechanism comprising a plurality of positive drive trains mounted on said indexing head for simultaneously moving said respective jaws, and clamp drive means for simultaneously operating said drive trains.

Claim 40

A machine for performing operations on a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, clamping means on said head for securing the workpiece thereto, indexing drive means for turning said indexing head to a series of positions, and a device disposed adjacent said indexing head for performing operations on said workpiece, said clamping means including a plurality of angularly spaced jaws, guide means on said indexing head and supporting said jaws for generally radial inward and outward movement, and an operating mechanism for simultaneously moving said jaws along said guide means, said operating mechanism comprising a plurality of positive drive trains mounted on said indexing head for simultaneously moving said respective jaws, and clamp drive means for simultaneously operating said drive trains.

Claim 41

A machine for performing operations on a generally circular workpiece, comprising an indexing head, means supporting said indexing head for rotation about a predetermined axis, clamping means on said head for securing the workpiece thereto, indexing drive means for turning said indexing head to a series of positions, and a device disposed adjacent said indexing head for performing operations on said workpiece, said clamping means including a plurality of angularly spaced jaws, guide means on said indexing head and supporting said jaws for generally radial inward and outward movement, and an operating mechanism for simultaneously moving said jaws along said guide means, said operating mechanism comprising a plurality of positive drive trains mounted on said indexing head for simultaneously moving said respective jaws, and clamp drive means for simultaneously operating said drive trains.