Wlodek
Aluminum
- Joined
- Nov 15, 2018
I am used to run a Jones & Shipman 540X hydraulic surface grinder and when recently getting a used manual Ingar 618 I found it rather tedious to run the two drives manually - especially the longitudinal one. Since I was going to rebuilt the machine anyway, I've decided on adding a simple power drive and I just have happened to have the right type of Bodine DC gear-motor to do it. The motor is coupled to the drive via a timing belt, and the timing belt pulley connects to the motor shaft by a toothed clutch to disengage it when working manually. The motor speed is adjustable as are the timings of the reverse cycles (0-1 second). This allows for a comfortable manual advance of the Y slide at the end of each transverse.
Other work on the grinder included adding a DRO (with the scales mounted inside the castings), replacing the lead-screws rubber boots and spindle and motor bearings, making new splash guards and the coolant circulation setup.
Ingar is a Spanish machine and when dismantling it I was surprised by how much its design is similar the Boyar-Schultz, including even the use of inch fasteners that are not common in Spanish products. The major difference is a multi-V belt drive for the longitudinal drive - the Boyar-Schultz grinders I have seen are using rack and pinion. The belt drive is surprisingly smooth and light to operate.
I realize that a project like this is not exactly an economical proposition. But at this, my semi-retired stage, it is not only a "fun" project that did altogether cost me very little, but one that allows me to do small grinding jobs while the Jones & Shipman is busy or set up for other work.
I've made a short video showing the conversion and the operation:
YouTube
Other work on the grinder included adding a DRO (with the scales mounted inside the castings), replacing the lead-screws rubber boots and spindle and motor bearings, making new splash guards and the coolant circulation setup.
Ingar is a Spanish machine and when dismantling it I was surprised by how much its design is similar the Boyar-Schultz, including even the use of inch fasteners that are not common in Spanish products. The major difference is a multi-V belt drive for the longitudinal drive - the Boyar-Schultz grinders I have seen are using rack and pinion. The belt drive is surprisingly smooth and light to operate.
I realize that a project like this is not exactly an economical proposition. But at this, my semi-retired stage, it is not only a "fun" project that did altogether cost me very little, but one that allows me to do small grinding jobs while the Jones & Shipman is busy or set up for other work.
I've made a short video showing the conversion and the operation:
YouTube