Machine with hydraulic connection for milling grooves drills
(57) Abstract:The invention relates to the field of machine tools and can be used in machine tools for milling grooves drills. The chain longitudinal feed spindle headstock of the machine consists of site preparation, link configuration, node tool. As part of setting the generator is a hydraulic pulses, connected to the hydraulic stepper motor system of pipelines and pump installation. When this generator is connected with the rotation drive of the product, and a stepper motor with a node of the longitudinal feed spindle workhead. This construction reduces the intensity of the machine and increases the accuracy of the chain longitudinal feed. 1 Il. The invention relates to the field of machine tools and can be used in the chain longitudinal feed spindle workhead for milling grooves drills.A known machine for milling grooves drills (Kudryashov A. A. "Machine tool production". M : mechanical engineering, 1968 - S. 62-70), kinematic chain longitudinal feed spindle workhead which consists of site preparation, site tools, link settings made in the form of guitar replaceable serrated CI of the shafts, gears, helical gears. This complicates the design of the machine, increases its intensity at considerable length mechanical kinematic chain.Known resipiratory machine with hydraulic chain longitudinal feed (Fedotenko A. A. "Kinematic structure of machine tools". M: Mechanical Engineering, 1970 - C. 148-149).This chain consists of site preparation, site tools, link settings made in the form of a cylinder with a rotating lineup.The technical challenge is to simplify the design of the kinematic chain of the longitudinal feed spindle workhead.The specified technical task is achieved by the fact that the hydraulic circuit of line feed, comprising a hydraulic cylinder which is connected by piping system with nodes of feed of the workpiece and the tool further comprises a hydraulic stepping actuator, consisting of interconnected pipeline system generator hydraulic pulses connected through a drive gear driven rotation of the product and hydraulic stepper motor engaged by the lead screw longitudinal movement of spindle head Stalinka for milling grooves drills.The circuit includes a tool 1, the workpiece 2, the spindle of which is fixed a gear wheel 3, which receives the rotation of the spool sleeve hydraulic generator pulses 4, connected to a piping system with a hydraulic stepper motor 5, kinematically associated with the lead screw 6 and carrying out a longitudinal movement of spindle head 7 product, and the working fluid to the hydraulic generator pulse is supplied by the pipe 8 from the pump unit 9.The machine operation is carried out as follows. The tool receives the rotation from the electric motor 1 through the link settings ivthe workpiece is rotated by the motor 2 through the link settings is.The workpiece spindle is fixed a gear wheel 3, which is driven into rotation of the spool sleeve with an estimated number of work slots generator hydraulic pulses 4, connected to a piping system with a hydraulic stepper motor 5, kinematically associated with the lead screw 6 longitudinal feed of spindle head 7 products. Machine with hydraulic connection for milling grooves drills, characterized in that it contains side hydraulic the horseflies cylinder, generator hydraulic pulses associated with the rotation drive products, and hydraulic stepper motor associated with the node of the longitudinal feed spindle workhead.
FIELD: machine engineering, manufacture of working screws of screw compressors and pumps.
SUBSTANCE: method comprises steps of making tool with shaping cutting edges; checking them; mounting tool by inclination angle relative to blank and spaced from blank while providing desired kinematics links with tool and(or) with blank for cutting process. In order to enlarge using range of cutting tool, it is provided with set of templates for shaping edges of tool designed for several mounting parameters. Cutting edge shape is controlled according to gap values between template and cutting edges. Change of cutting edge shape as tool wears is evaluated and then tool mounting is changed or cutting edges are subjected to preliminary correction according to selected mounting parameters. Then cutting process is realized with new parameters of tool mounting.
EFFECT: enlarged using range of tool for making screws.
FIELD: the invention refers to processing, milling of screw-type oil screw pumps.
SUBSTANCE: the mode is that rotation movement is given to a processing blank and rotation movement and movement of longitudinal feeding are given to a fashioned milling cutter having required fashioned profile in the shape of a turning curve to totality of edges of simple forms of its separate cutting elements. For expanding technological possibilities before operation after grinding and following regrinding the sectional milling cutter is putted together from the packet of disc groove cutters installed and fixed with the aid of a nut on the common slit chuck. At that the number of the disc cutters is chosen even and they have slit openings along the profile reciprocal to the slit profile of the chuck and direct cutting teethes which are received and regrinded in the collection in the packet where the front surfaces of the cutting teethes are located relatively to each other in a circumference direction on the value of one step of the slit joint of disc cutters and the chuck are located in one longitudinal plane. The installation of the disc cutters is adjusted by way of turning relatively to each other on the value of one step of the slit joint of disc cutters and the chuck. AT that the correlation between the quantity of slits of slit joint, the quantity of teethes of the cutter and the even number of disc cutters is defined according to the given formula.
EFFECT: expands technological possibilities.
1 ex, 8 dwg
FIELD: technological processes, tool.
SUBSTANCE: cutting head for processing of multithread grooves in billet hole contains casing, in radial openings of which cutting elements are installed in the form of end form-milling cutters. Cavity is provided in casing, in which driving gear shaft is installed with tailpiece for transfer of rotation motion, and driven gear shafts are installed in radial openings of the casing, on which end form-milling cutters are fixed. Casing is made with the possibility of rotation together with end cutters around driving gear shaft, tailpiece of which is intended for connection to machine spindle.
EFFECT: expansion of technological resources.
FIELD: process engineering.
SUBSTANCE: end milling cutter is arranged perpendicular to generating line of the screw peripheral surface and receives independent rotation about central axis, while screw workpiece receives rotary motion matching the mill cutter longitudinal feed and cutting feed per each longitudinal pass. Note here that end cutting mill with tapered shank is used with its end face radial slots housing cutters with mating shape. The said cutters have cutting blades made in hard alloy to interact with damping element. The latter represents ring-like corrugated spring. The number of ledges of the latter equals that of the milling cutter tools. Note also that cutting tools are fixed in the milling cutter body by the plate and damping element.
EFFECT: expanded performances.
8 dwg, 1 ex
FIELD: engines and pumps.
SUBSTANCE: invention relates to compressors or engines. Double-auger unit of movable working chambers of mechanical compression or using pressure of liquid and/or gaseous working body comprises one auger integrating one lengthwise end face of helical wall with bottom, and another auger integrating opposite end face of the like helical wall with bottom. Movable augers are driven by clamping device and/or converting drive. Augers feature spherical or flat shape. Helical walls together with bottoms of both augers are displaced through half the pitch of generating spiral minus sum of thickness of both helical walls. Space between bottoms of both augers is separated by helical walls into tight chambers arranged on both sides of either helical wall. Helical wall of one auger can roll in whatever direction and slide along two helical surfaces of helical wall of the other auger to vary volume of chambers formed and disappeared in space between bottoms of augers.
EFFECT: reduced friction of working surfaces.
24 cl, 34 dwg
FIELD: machine building.
SUBSTANCE: table with blank is turned at angle of screw groove ascent. The blank is imparted with uniform progressive motion along its axis together with the machine table and with rotating motion corresponding to progressive transfer of the table. Complex rotating motion of the blank is obtained by summing uniform and alternate motions by specified law of rotation. Also, angle of table turn corresponds to the biggest twist of a screw groove, while gradually increasing radius of profile of the screw groove is produced by progressive transfer of a conic cutter along its axis.
EFFECT: expanded process functionality.
3 cl, 2 dwg
FIELD: process engineering.
SUBSTANCE: proposed method is used to machine end mill grooves and comprises positioning of cutting tool relative to billet and forming shaped helical groove in one-pass milling. To decrease the range of tools, end plain milling cutter is used. Note here that milling cutter positioning is performed in arranging it perpendicular to billet so that working face and lengthwise axis are located at preset A and B from billet lengthwise and crosswise axes and turned through process angles α and β to said axes. Note here that distances A and B may make (0.5-1)R and (0.75-1.5)R respectively, while angle α and β do not exceed 20°, where R is billet radius.
EFFECT: higher efficiency of cutting.
2 cl, 2 dwg
FIELD: machine building.
SUBSTANCE: tool in form of the body of rotation with toroidal generating flat is imposed simultaneously with three agreed movements in same plane of profiling. One of them is reciprocal-wobbling in the plane of profiling, and two others - progressive. The reciprocal-wobbling movement is performed around the centre of profile cross-section of the part, and is reversed in extreme points of the profile at end of each pass. To determine angle of wobbling movement, and to agree individual movements of the tool the definite mathematical relations are used.
EFFECT: method ensures uniform loading of the tool cutting edges with increasing of its strength.
FIELD: drilling soil or rock.
SUBSTANCE: group of inventions relates to drill bits and methods of their production. Drill bit comprises mounting section, spiral, adjacent to mounting area, and head, adjacent to spiral. Spiral has configuration of, at least, double spiral and correspondingly has, at least, two essentially helical discharge grooves, for which by two essentially helical ribbons are correspondingly defined forming groove side walls. First discharge groove, including its side walls, has constant spiral pitch along bit longitudinal axis. At least, one of two spiral tapes, related to first discharge groove, has or have along bit longitudinal axis, at least, at sections, alternatively changing width.
EFFECT: technical result consists in drilled out material transportation optimization and natural oscillations effective suppression.
15 cl, 3 dwg
FIELD: machine engineering.
SUBSTANCE: using the disk mill having a profile of a screw groove. The workpiece is placed in a dividing head mounted on a turntable, the workpiece is oriented relative to the mill to a predetermined angle of elevation of the screw groove and the depth of the screw groove is adjusted. Provide the position of the cutter parallel to the angle of the helix lifting by controlling the angle of rotation of the turntable about the vertical axis z, which is driven by the stepping motor with control of the machine coordinate through an additional divider. With uniform rotation of the workpiece around the vertical axis, the workpiece is coordinately moved by rotating the turntable and moving it along the X and coordinates.
EFFECT: possibility of processing screw grooves with the prescribed law of changing the pitch, increasing the processing capacity.
FIELD: process engineering.
SUBSTANCE: proposed device comprises dynamometer, computer and fuzzy controller. To up precision, said device comprises phasing unit, out-phasing unit, membership function generation unit and cutting speed transducer, to allow computing total perturbation actions. Note here that fuzzy controller is complemented with units for hardware integration connected in series. Dynamometer output is connected to first input of phasing unit. Speed transducer is connected to phasing unit second input. Phasing unit third input is connected to computer. Computer first and second inputs are connected to outputs of dynamometer and speed transducer while phasing unit fourth input is connected to membership function generation unit output. Phasing unit output is connected to input of hardware integration unit with its output connected to composition unit input. Output of the latter is connected to accumulation unit input with its output connected to out-phasing unit input. Note here that fuzzy controller output signal represents out-phasing unit output signal connected to input of actuators.
EFFECT: higher precision.
FIELD: different materials cutting off processes and equipment.
SUBSTANCE: each cavity of double-way feed drive hydraulic cylinder is connected with pressure controller. Rod-free cavity of said hydraulic cylinder is connected with throttle having regulator.
EFFECT: simplified design of machine tool.