Abstract:
Device for reducing the roughness of plane or cylindrical surfaces of a body (12) machined on machine tool, provided with grinding wheel (6) having suitable granulometry on saddle (5) fastened to the fixed part (8) of said machine in a translatable way in respect of said body and with means (1, 2, 3, 4) suited to push the wheel-carrying saddle (5) constantly during the operations of polishing so that the grinding wheel (6) adheres on the surface to be polished uniformly on all its parts, thus following the technical surface and not the ideal one of the body.
Abstract:
An apparatus, system, and method using an elastic biasing element in combination with an encoder arrangement for precise control of force or torque applied to a moving object, is applied for controlling a feed force applied to an abrasive element of a bore finishing tool, to respond to changes in the feed force such as can arise from contact with a workpiece bore surface and variations therein, such as tapers, hourglass shapes, barrel shapes, and the like. The elastic biasing element can include a single or multiple springs in one or more sets, and the feed force can be selected to have a constant value or vary as a function of time, position, or other variables or conditions.
Abstract:
A method of forming a hydrostatic nut (36) that cooperates with a lead screw (38) for translating a cam grinder wheel head (26). An externally threaded lead screw master (66) is inserted into an internally threaded cylindrical mold (50). Beads of wax or tape (76, 78) are adhered to the external threads on the standard (66) while the rest of the standard (66) is treated with a release coating to define a continuous cavity (86, 88) between the internal threads of the nut (36) and the external threads on the standard (66). An epoxy resin is introduced into the cavity. The standard (66) is then removed and the wax or tape (76, 78) is removed to leave oppositely directed helical channels (86, 88) in the polymer. The helical channels are pressurized with a thin fluid film that prevents metal to metal contact.
Abstract:
본 발명은 적층시트 연마방법 및 장치에 관한 것으로서, 보다 상세하게는 연마대상시트를 적층하여 연마하는 연마방법 및 장치에 관한 것이다. 본 발명은 미리 설정된 제2공급위치(S2)에 위치된 연마대상블록(40)을 고정하여 가공위치로 이동되는 지그부(240)와; 상기 지그부(240)에 의하여 고정된 연마대상블록(200)에 포함된 복수의 연마대상시트(30)들의 측면을 상대회전에 의하여 가공하는 측면가공부(250)을 포함하는 것을 특징으로 하는 적층시트 연마장치를 개시한다.
Abstract:
Machine for polishing/ flattening slabs of natural stone or marble or granite or the like, provided with a mechanism for controlling the position of the spindle, such a machine comprising a base on which the slabs are positioned, a bridge, movable with respect to the base and to the slabs, on which a series of spindles (1) are fixed that, through suitable operating heads (2) kept in contact with the surface of the slabs by pneumatic cylinders that carry out the vertical movement of the spindles in the direction of the underlying slabs, provide for the polishing of the slabs themselves.
Abstract:
The feed system (30) for a honing machine (10) provides a capability to dynamically correct in real time errors in bore size inferred arising from variations in feed force, and a method of operation of the same. The system (10) allows a user to select between rate and force controlled honing modes, which provides one or more of the advantages of both modes. The system provides capabilities for automatic rapid automatic bore wall detection, compensation for elasticity of elements of the feed system (30) and honing tool (14), and automatic tool protection. The system is automatically operable using feed force, feed rate and positional information for honing a work piece (20) to one or more target parameters, such as one or more in-process sizes and a final size.
Abstract:
An electrical discharge machine uses a graphite electrode (12) to machine a workpiece at a high metal removal rate. When the graphite electrode (12) becomes worn index table (1), which supports the workpiece, uses slide mechanism (4) to slide index table (1) after shot pins (6) are retracted from female shot pin holes (7). A redressing table (2) which is attached to the slide mechanism (4) opposes the graphite electrode (12) after index table (1) is slid out of position. Redressing table (2) holds an abrasive master for redressing the graphite electrode (12) in conjunction with a flow of abrasive slurry and ultrasonic transducer (19). After electrode (12) is redressed index table (1) is slid back into position for more machining of the workpiece to maximize productivity by not dismounting the graphite electrode (12) between machining and redressing procedures.