摘要:
A numerical control system having an automatic programming unit for executing automatic programming, and a numerical control unit for executing numerical control. A single operator's panel having selection keys is provided and shared by both the automatic programming unit and numerical control unit. The system includes a control unit which, based on selection information entered from the operator's panel by manipution of the selection keys, devotes the operator's panel exclusively to the automatic programming unit or numerical control unit. The automatic programming unit and numerical control unit share a single display device and a single data input/output unit, in addition to the operator's panel.
摘要:
A method of automatically creating numerical control data comprises providing a number of parameters used for specifying a machining pattern and a number of function codes designated by the parameters for creating numerical control data. Storing in a memory the correspondence between each of the function codes and a numerical control data output format; storing in a memory the correspondence between each parameter and one or more function codes designated by said parameter. The method also includes applying parameters sequentially from a machining pattern information output unit to a processor in accordance with NC machining, and creating numerical control data by using function codes designated by the parameters.
摘要:
A numerical control machining method and apparatus wherein a workpiece (101) is machined on the basis of curved surface data defining a curved surface. In the numerical control machining method and apparatus, a first boundary surface (103) serving as an upper limit and a second boundary surface (104) serving as a lower limit are respectively entered as inputs. A determination is made whether a tool lies in an upper part with respect to the first boundary surface (103), between the first and second boundary surfaces, or in a lower part with respect to the second boundary surface (104), and only the curved surface (CA.sub.1) enclosed by the first boundary surface (103) and the second boundary surface (104) is machined on the basis of the curved surface data. Then first and second boundary surfaces (103, 104) are moved downwards by predetermined values and the tool is moved by rapid traverse to a position (P.sub.12) corresponding to the first boundary surface (103'). After the completion of the machining of the curved surface (CA.sub.1) enclosed by the first and second boundary surfaces the next cutting operation is started from the position (P.sub.12).
摘要:
A numerical control method for controlling a numerical control device and prereading the numerical control data in a succeeding block during the execution of numerical control in accordance with the current block. A plurality of line segments, each specified by a block of numerical control data, approximate a curve. When the length of a line segment is less than a prescribed length (defined by required machining precision), control of movement of a member such as a tool based on the data specifying said line segment is skipped. This eliminates intermittent tool movement, improves machining precision, and prevents damage to the machine tool.
摘要:
The present invention relates to a mounting apparatus for leadless electronic parts wherein leadless electronic parts 3 supplied through a cylindrical chute 5 are dropped one by one into a part holding hole 7 of a part feeding pusher 6, with the part holding hole having a cutout, the part feeding pusher 6 transports the leadless electronic part 3 between chucks 10 and 11, and then a main block 8 including the chucks 10 and 11 is pivoted such that the leadless electronic parts 3 are taken out and mounted on a mounting portion of a printed circuit board 1 rapidly and reliably.
摘要:
A component mounting apparatus includes one head unit which has a component holding member capable of holding a component and which is selected from among a plurality of types of head units according to a type of the fed component, a head moving unit which has a head fitting portion onto which the selected one head unit is removably loaded and which moves the head unit loaded on the head fitting portion in a direction extending generally along a surface of the board, and a head control unit which is provided for each of the head units and which performs control for component mounting operation by a head unit corresponding to the loaded head unit.
摘要:
A component mounting apparatus includes one head unit which has a component holding member capable of holding a component and which is selected from among a plurality of types of head units according to a type of the fed component, a head moving unit which has a head fitting portion onto which the selected one head unit is removably loaded and which moves the head unit loaded on the head fitting portion in a direction extending generally along a surface of the board, and a head control unit which is provided for each of the head units and which performs control for component mounting operation by a head unit corresponding to the loaded head unit.
摘要:
A process for producing sodium salts, which comprises adding solid sodium carbonate to a first aqueous solution containing sodium carbonate and sodium hydrogencarbonate, to prepare a second aqueous solution, precipitating, separating and recovering from the second aqueous solution sodium sesquicarbonate crystals containing at least 50 mol % of the sodium hydrogencarbonate component contained in the second aqueous solution, and further recovering sodium carbonate from a mother liquor remaining after separating the sodium sesquicarbonate crystals from the second aqueous solution.
摘要:
An opening end of a concave portion of a bearing holder is crimped to prevent an outer race of a ball bearing from sliding rearwardly, so that a bearing stop cover in the prior art is not needed to stop the slide-out of the outer race. Thus, the number of parts and assembling procedures for an intake air controller are reduced, thereby reducing the manufacturing const thereof. Further, since the bearing stop cover is not needed, the axial length of the bearing holder of a throttle body is shortened, thereby axially compacting the throttle body.
摘要:
The present invention relates to an electronic parts mounting device designed to mount chip type electronic parts on a printed board. It is an object of the invention to provide a compact and high-speed electronic parts mounting device. To achieve this object, the present invention provides first and second drive systems (12) and (13) for driving first and second supplying portions (2) and (3) arranged on both sides of a table portion (6) and has arrangement pitches of suction nozzles (18) of each supplying portion, each of the drive systems (12) and (13), and each cassette (4) of the supplying portions identical with each other. This structure provides the compact and high-speed electronic parts mounting device.