Tool for making locknut assemblies

Claim 2

A tool for tightening a nut onto a bolt and locking the nut on the bolt to form a locknut assembly, comprising a housing member, a member rotatably mounted in said housing member and adapted to be drivingly connected to the drive shaft of a power tool or the like, said member including a socket at is outer end adapted to be fitted over a nut threaded onto a bolt for tightening the nut onto the bolt upon operation of the drive shaft, crimping means associated with said socket member and engageable with the sides of a nut positioned in said socket, and movable means engageable with said crimping means and operable during movement thereof to cause said crimping means to deform the sides of the nut inwardly to cause substantial engagement of the threads of the nut and bolt to lock the nut on the bolt.

Claim 3

A tool according to claim 1 wherein said crimping means comprises a plurality of punches movably mounted on said socket member, a sleeve slidably mounted on said socket member and engageable with said punches upon sliding movement thereof to effect the crimping of the nut, and a piston associated with said housiNg member for moving said sleeve into engagement with said punches.

Claim 4

A tool according to clam 2 wherein said piston is slidably mounted on said housing member and cooperates therewith to define a cylinder therebetween, and passage means for supplying fluid under pressure to said cylinder to actuate said piston.

Claim 5

A tool according to clam 2 wherein said piston is slidably mounted on said housing member and cooperates therewith to define a cylinder therebetween, and passage means for supplying fluid under pressure to said cylinder to actuate said piston.

Claim 6

A tool according to claim 2 including spring means urging said punches to a retracted position out of engagement with the nut.

Claim 7

A tool according to claim 1 wherein said socket member comprises a split collet having said socket therein, said crimping means comprising projections on the walls of said socket engageable with the sides of the nut, and a sleeve slidable on said housing and engageable with said collet to force said projections into the sides of the nut.

Claim 8

A tool for tightening a nut onto a bolt and locking nut on the bolt to form a locknut assembly, comprising a housing, a coupling member rotatably mounted in said housing and having coupling means at one end thereof adapted to be drivingly connected to the drive shaft of a power tool or the like, a socket member rotatable with said coupling member and having a socket at its outer end adapted to be fitted over a nut threaded onto a bolt for tightening the nut onto the bolt upon operation of the drive shaft, a sleeve slidably mounted on said socket member, a plurality of punches mounted on the outer end of said socket member and having portions thereof movable through openings in the walls of said socket into engagement with the sides of a nut positioned therein, said punches being engaged by said sleeve and moved inwardly through said openings upon movement of said sleeve toward the outer end of said socket member, spring means urging said sleeve to a retracted position on said socket member, a piston member slidably mounted on said housing and engageable with said sleeve, said housing and said piston cooperating to define a cylinder therebetween, and passage means in said housing for supplying fluid under pressure to said cylinder for sliding said sleeve along said socket member into engagement with said punches to cause the latter to deform the sides of the nut to effect close engagement of the threads of the nut and bolt to lock the nut on the bolt

Claim 9

A tool for tightening a nut onto a bolt and locking nut on the bolt to form a locknut assembly, comprising a housing, a coupling member rotatably mounted in said housing and having coupling means at one end thereof adapted to be drivingly connected to the drive shaft of a power tool or the like, a socket member rotatable with said coupling member and having a socket at its outer end adapted to be fitted over a nut threaded onto a bolt for tightening the nut onto the bolt upon operation of the drive shaft, a sleeve slidably mounted on said socket member, a plurality of punches mounted on the outer end of said socket member and having portions thereof movable through openings in the walls of said socket into engagement with the sides of a nut positioned therein, said punches being engaged by said sleeve and moved inwardly through said openings upon movement of said sleeve toward the outer end of said socket member, spring means urging said sleeve to a retracted position on said socket member, a piston member slidably mounted on said housing and engageable with said sleeve, said housing and said piston cooperating to define a cylinder therebetween, and passage means in said housing for supplying fluid under pressure to said cylinder for sliding said sleeve along said socket member into engagement with said punches to cause the latter to deform the sides of the nut to effect close engagement of the threads of the nut and bolt to lock the nut on the bolt

Claim 10

A tool according to claim 6 including spring means urging said punches out of engagement with the sides of the nut.

Claim 11

A tool according to claim 1 wherein said crimping means comprises a plurality of punches movably mounted on said socket member, said movable means being engageable with said punches upon movement thereof to effect the crimping of the nut.

Claim 12

A tool for tightening a nut onto a bolt and locking the nut on the bolt to form a locknut assembly, comprising a housing member, a member rotatably mounted in said housing member and adapted to be drivingly connected to the drive shaft of a power tool or the like, said member including a socket at its outer end adapted to be fitted over a nut threaded onto a bolt for tightening the nut onto the bolt upon operation of the drive shaft, crimping means associated with said socket member and engageable with the sides of a nut positioned in said socket, and actuating means operable upon movement thereof in one direction to engage said crimping means to cause radially inward movement of the latter into the sides of the nut to deform the same to cause substantial engagement of the threads of the nut and bolt to lock the nut on the bolt.

Claim 13

A tool for tightening a nut onto a bolt and locking the nut on the bolt to form a locknut assembly, comprising a housing member, a member rotatably mounted in said housing member and adapted to be drivingly connected to the drive shaft of a power tool or the like, said member including a socket at its outer end adapted to be fitted over a nut threaded onto a bolt for tightening the nut onto the bolt upon operation of the drive shaft, crimping means associated with said socket member and engageable with the sides of a nut positioned in said socket, and actuating means operable upon movement thereof in one direction to engage said crimping means to cause radially inward movement of the latter into the sides of the nut to deform the same to cause substantial engagement of the threads of the nut and bolt to lock the nut on the bolt.

Claim 14

A tool according to claim 9 including power-operated means for effecting said movement of said actuating means in said one direction.

Claim 15

A tool according to claim 9 wherein said actuating means is movable relative to said socket member in an axial direction.