Patent GB-1203584-A (GB)
Title: Improvements in or relating to grinding and like machines
Inventor: DAVIS COLIN GEORGE
IPC: B24B5/14
Filed: 1966-12-02
Abstract: 1,203,584. Grinding. CINCINNATI MILLING MACHINES Ltd. 30 Nov., 1967 [2 Dec., 1966], No. 54167/66. Heading B3D. A grinding machine comprises a machine bed 12, a wheel carrier 28 carried upon an infeed slide 45 to pivot relative to the slide about a first vertical axis 46, an intermediate member 38 on which the infeed slide is mounted for translational sliding movement and which is capable of pivoting relative to the machine bed about a second vertical axis 41, and a support member 33 enabling the wheel carrier to pivot relative to the machine bed about a third vertical axis 35, the intermediate member 38 being mounted on the support member 33 to rotate about the second axis 41, the support member being mounted on the bed 12 to rotate about the third axis 35 and being clampable to the bed and/or the intermediate member in any angular position relative thereto. The machine has a front base 11 formed with slideways 14 for a table 15 carrying a swivel table 17 which is adjustable to about 10 degrees either side of a central position about a vertical axis, the table carrying a head stock 18 and tailstock 19 for a workpiece 26. The bed 12 is at the rear of the base 11 and has a recess 32 for receiving a rim 34 of the support member 33 for adjustment about the axis 35. An aperture in member 33 receives the rim 39 of the intermediate member 38 for adjustment about the axis 41. The intermediate member has guideways 43, 44 for the infeed slide 45 which carries the wheelhead 28 for adjustment about the axis 46. The wheelhead can be clamped to the slide 45, bolts 72 clamp the intermediate member 38 to the support member, and the latter is clamped to the bed by bolts 74. A hand wheel 47 is connected by a shaft 48 to a gear 49 which meshes through an idler with a gear 64 on a shaft 65 which is mounted in the intermediate member 38 and has a pinion 69 engaging a rack 71 on the infeed slide. Gear 49 also meshes with a gear 61 which is rotatable on a stud 59 on the support member and is integral with a gear 62 meshing with a gear 52 which can be held against rotation in the bed by a clamp 56. With the bolts 72, 74 clamping the intermediate member and support member, rotation of the gear-wheel 49 by handle 47 rotates pinion 69 to move the infeed slide and wheelhand along the guideways 43, 44. The angular rotation of the infeed slide can be adjusted by clamping the support member by the bolts 74 and clamping the infeed slide to the intermediate member 38. Rotation of gear 49 thus causes rotation of the intermediate member about axis 41 on the support member. With the infeed slide clamped to the intermediate member 38, the gear 52 held by the clamp 56, and the bolts 72, 74 released, rotation of gear 49 causes rotation of the support member 33 and rotation of the intermediate member 38 on member 33 at the same speed but in the opposite direction so that the angular rotation of the infeed slide 45 relative to the workpiece remains unchanged. The machine may be set up for plunge grinding, free grinding or taper grinding.