Thread rolling assembly
AssigneeVey Manufacturing Technologies LLC
InventorKenneth Roger LEVEY
Life of this patent
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Abstract
Cold-forming equipment configured as a high precision thread rolling assembly utilizing racks, guide rails, a bearing assembly including rolling element linear motion bearings and a gear reduction assembly.
Claims20
A high precision thread rolling assembly, wherein a mounting flange is secured to a work platform, the assembly comprising:
- a first rack and a first guide rail each fixed to the mounting flange;
- a moving die block including a second rack and a second guide rail each connected thereto,
- wherein the first and second racks each include a series of rack teeth;
- a bearing assembly comprising:
- a first linear motion bearing movably coupled to the first guide rail;
- and
- a second linear motion bearing movably coupled to the second guide rail;
- and
- a gear reduction assembly comprising:
- a plate connected to each of the first and second bearings;
- and
- a pinion gear including a plurality of gear teeth, wherein the pinion gear is rotatably connected to the plate so that the gear teeth are disposed in meshing engagement with the first and second rack teeth.
A high precision thread rolling assembly having a stationary die block and a mounting flange both secured to a work platform, the stationary die block includes a stationary die pocket having stationary die disposed therein, the assembly comprising:
- a bearing assembly slidably connected between the mounting flange and a moving die block, the moving die block including a moving die;
- a blank disposed between the stationary and moving die blocks;
- wherein a center line of rolling pressure is defined along a transverse axis of the bearing assembly and wherein the centerline of rolling pressure is aligned in registration with a center of the blank when the blank is moved from a leading edge of each of the opposed moving and stationary dies to a trailing edge of each of the opposed moving and stationary dies.
A method of converting a conventional thread rolling machine including a pitman arm connected to a flywheel on a work platform, an oil film way connected to a mounting flange on the work platform, a moving carrier die block connected to the pitman arm and the oil film way, and a stationary die block, to a high precision thread rolling assembly, the method comprising:
- uninstalling the moving carrier die block from the oil film way and the pitman arm;
- uninstalling the oil film way from the mounting flange;
- connecting a first rack and a first guide rail to the mounting flange;
- and
- connecting a moving die block to the pitman arm and a bearing assembly including a first linear motion bearing movably couple to the first guide rail;
- a second linear motion bearing movably couple to a second guide rail connected to the moving die block;
- and a gear reduction assembly including a plate connected to each of the first and second bearings, and a pinion gear engaging the first rack and a second rack connected to the moving die block.
A kit of parts for a high precision thread rolling assembly comprising:
- a bearing assembly including a first linear motion bearing, a second linear motion bearing, and a gear reduction assembly.
Dependencies are inferred from the claim text.