Horizontal CNC Form Gear Grinding Machine 1.4 Peripherals 1.4.1 Hydraulics/Lubrication Complete hydraulic system for lubrication, clamping, and tailstock stroke. S-axis with oil mist lubrication. Z, X-axes with grease lubrication. C, A-axes with oil lubrication. 1.4.2 Coolant Filtration System The coolant filtration system cleans used coolant using paper filtration media and includes the following: Temperature controlled for grinding fluid utilizing a chillertype oil cooler. Filter capacity=120L/min. Multiple circuit coolant chilling equipment: With automatic temperature regulation for cooling oil. Oil mist recovery and electrostatic air filter. 1.5 Standard Machine Accessories The Model #YK7340A CNC Profile (Form) Wheel Gear Grinding Machine is used for grinding precise, special cylindrical gears with an outside diameter of less than 400mm (15.75). These types of gears are more commonly used in the automotive, rail transport, aviation and machine tool industries. This machine is especially suitable for grinding high-speed gears and clusters with requirements for profile and lead modification, as well as special fillet requirements for tip and root. These machines can also be used for grinding components without involute forms as well, such as cycloid gears, precision splines and worm workpieces. Indeed, the YK7340 was specially developed to encompass these special workpieces. The working principle of this machine is form grinding. The profile of the grinding wheel is modified via onan on-board wheel dressing system utilizing a diamond dressing wheel to facilitate grinding of the orkpiece tooth forms precisely. Themovements and operations of the machine are relatively simple and straightforward (especially whencompared to generational-type grinding); but can be characterized by tremely high machining accuracy and efficiency. The model #YK7340 orients the workpiece horizontally between centers for maximum workpiece design flexibility. This design philosophy more easily allows for spline and worm gear forms. The Model #YK73xx Series form grinding machine designs from QC American are known for their remarkable reliability, thermal stability and they are adaptable to automation. Featuring a full CNC-based control, these machines are capable of performing well in a variety of gear finishing applications, as well as being quite flexible where modifications are concerned. The #YK73xx Series feature high power grinding spindles, standard precision components utilized from around the globe and closed loop feedback systems for high geometrical and positioning accuracy. Main Characteristics Compact machine design featuring a ribbed, one-piece cast iron bed. Ergonomic design with complete machine access from the ground floor and through a well designed and completely lit enclosure. The on-board automatic dressing cycle of the grinding wheel improves the uptime and efficiency of this machine tool. Siemens 840D CNC Controls and Drives controlling six (6) axes. The special Human Machine Interface (HMI) was developed by QC according to the working characteristics of North American gear processing. Based on a conversational programming protocol, programming is simplified by entering workpiece parameters and relevant technical parameters as called out by the operator. Technical Data Grinding Wheel Machine with Auxiliary Units #YK7340 Machine Layout is Identical to Model #YK7332-A Base Machine 1.1 Assembly Groups Machine Base of ribbed design, made of cast iron. Installation on leveling/vibration isolation pads. Column made of cast iron with slide guideway. Wheel Stock made of cast iron. Wheel stock radial in feed utilizes precision ball screw, powered directly by an AC servo motor. CNC Dressing Device Automatic dressing by an on-board diamond dresser.The dressing paths are generated by the horizontal and the tangential grinding slide movement. Enclosure (Full) Multiple access points through enclosure to key areas of machine facilitates easy dresser, grinding wheel and workpiece changeovers. 1.2 Electrical Equipment 1.2.1 Power Supply Operating voltage is 460/480 Volt/3Phase/60Hz. 1.2.2 SIEMENS 840D CNC Control Operator Features Operator station with 12 TFT color flat screen and control panel in front of the control cabinet. Integrated keyboard with a team of horizontal and vertical soft keys. Hand-held operating panel for more convenient set-up of the machine. The machining program uses standard CNC conversational programming language fully developed by QC, and the interface program uses NUM standard MMI TOOL software. 340 Machine Layout is Identical to Model #YK7332-A German-Owned Siemens service is out of New York, USA. QC American provides front-line service regardless. Control Interface Features Windows 2000 Operating System. 586MB Pentium processor. 30GB hard drive. 128M RAM. 56K modem. Two USB Ports for archiving user and machine data or running peripherals. 3.5 floppy drive. Parallel interface for connecting a printer. Serial interface for common use. Ethernet interface. Service Functions Integrated modem for remote diagnostics connection between QC computers. Graphical display of processing data. 1.3 Software for Siemens 840D Control This QC Developed software package enables the user to generate, edit and optimize grinding programs and analyze processing data on the control of the machine or a remote PC. The software interface is identical with the machine control menu and may even be used for rudimentary training purposes. Gear parameters calculation module Input and storage of workpiece data. This module consists of a conversational interface for geometrical parameter data entry, technical parameters and measuring parameters to facilitate computing of standard gears, gears with addendum modification, modified spur (helical) cylindrical gears. Basic work piece data is recorded into a database for later editing or processing. modification. This module serves to gather data in order to generate the correct wheel profile through an editable series of dressing cycles using the on-board dressing wheel system. Based on data entered about the workpiece and special requirements on gears to be machined; including profile, lead modification and fillet curve parameters, the profile of the grinding wheel can be automatically computed to meet the task at hand. Conversational Control Design. The G code will be automatically created based on the gear processing and grinding parameters entered by the user. In addition, the customers can even directly use and upload straight G code if desired. Customer can add specific modifications to suit their applications. 1.3.1 Functions for Grinding of Worm and Spline Forms. On-board software supports these two forms, along with wheel stock and grinding wheel hangeovers. Please see section 1.3. . 1.3.2 Axis Information Six (6) CNC Axes X-Axis. Radial movement of main wheelhead column relative to workpiece, 300,0mm total travel, with Linear guide way. Powered directly by an AC servo motor and driven by ball screw. Linear scale Type: LS486 Heidenhain; Resolution: .0001mm. Z-Axis. Axial movement of worktable in workpiece direction in length. 650,0mm with Linear guide way. Powered directly by an AC servo motor and driven by ball screw. Linear scale Type: LS486 Heidenhain; Resolution: .0001mm. A-Axis. Rotary movement of the grinding wheel headstock, Type and resolution of rotary axis by Heidenhain RON785 @ .0001mm. C-Axis. Rotary movement of workpiece headstock. Type and resolution of rotary axis by Heidenhain, RON785 @ .0001mm. S1-Axis. Rotation of grinding wheel. S2-Axis. Rotation of diamond dressing wheel. 3. Machine Warranty A warranty period of 12 months on entire machine and accessories from time of final acceptance or 5,000 hours of use whichever occurs first. An extended warranty is available per further negotiation(s). 4.Spare Parts Warranty Spare Parts availability is guaranteed for 10 years from the date of machine commissioning with deliveries under current market conditions.
Nobutoshi Nomoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).