62results about How to "Avoid low machining accuracy" patented technology

There is provided a precision roll turning lathe which can not only machine with high precision circumferential transverse grooves in the peripheral surface of a roll but can also machine with high precision longitudinal grooves in the peripheral surface. The precision roll turning lathe includes: a bed 10; a headstock 12, mounted on the bed 10, for rotating a roll-shaped workpiece while holding one end of the workpiece by means of a chuck, said headstock having an indexing axis (C axis) for performing circumferential indexing of the workpiece; a tail stock 14, mounted on the bed 10 and disposed opposite the headstock 12, for rotatably supporting the other end of the workpiece; a carriage 16 including a saddle 26 mounted on the bed 10 movably in the longitudinal direction (Z-axis direction) of the workpiece, and a table 28 mounted on the saddle 26 movably in a direction (X-axis direction) perpendicular to the longitudinal direction of the workpiece; a tool swivel 30 mounted on the table 28 and having an indexing axis (B axis); a tool post 33 mounted on the tool swivel 30 and having a plurality of cutting tools 36 attached thereto; and a fly cutter spindle device 34 mounted to the tool post 34 and having a cutter spindle for rotating a fly cutter 39.

The invention discloses special equipment for laser mirco-cladding. The equipment comprises a workbench, a laser processing system and a control system, and is characterized by also comprising a charge coupled device (CCD) monitoring and positioning system and a direct writing system, wherein the CCD monitoring and positioning system comprises a coaxial CCD sensor, a paraxial CCD sensor, a zoom lens, an imaging eye lens, a zoom optical system, a paraxial imaging object lens and an external monitor; the direct writing system comprises a micro-pen direct writing device and a micro-jet direct writing device; the micro-pen direct writing device comprises a support, a guide rail, a cylinder, a slider, a piston rod, a dial gauge, a micro adjustment nut and a micropen; and the micro-jet direct writing device comprises a water bath kettle, a gas-guide tube, a micro-pressure gauge and a micro-jet tool. In respect of the equipment, a laser optical path and the installation stations and working modes of the micro-jet direct writing device and the micropen are reasonably designed, and laser processing, the micropen and the micro-jet direct writing system are integrated on the same working platform, thereby realizing advantage complementation of various processing methods.

The present invention relates to a clamping device of a rotation indexing device used by a machine tool. The invention provides a clamping mechanism which can endure high-load procession and generates enough clamping force in the clamping device of a rotation indexing device used by a machine tool. The clamping device (2) is provided with a clamping mechanism which is set with a mode of extending along a radius direction of rotation axis (5) and is composed of more than three lever components (11) between a clamping disc (8) and a piston component (6). The pulling force of the piston component (6) is increased through a lever principle and is acted on the clamping disc (8).

The invention aims to provide a battery case laser welding clamp. A centering gap adjusting mechanism can guarantee a stable structure, and the consistency of the center of a fixed battery and the center of an indexer disk is good when the type of the battery is replaced, so the product quality is improved. In order to achieve the effect, the battery case laser welding clamp comprises a pedestal and the centering gap adjusting mechanism which is arranged on the pedestal, wherein the centering gap adjusting mechanism comprises a back plate which is arranged on the pedestal; an indexer is arranged between the pedestal and the back plate; an adjusting screw is arranged on the horizontal middle axis of the back plate and penetrates through the nut to be connected with left and right battery clamping plates. Since the technical scheme is adopted, when the type of the battery of the battery case laser welding clamp is replaced, only a spinner is required to be rotated to drive the adjusting screw; the left battery clamping plate and the right battery clamping plate move symmetrically along the longitudinal middle axis of the back plate to guarantee that the consistency of the center of the battery between the left battery clamping plate and the right battery clamping plate and the center of the indexing disk and avoid reduction in machining precision due to replacement of the battery.

To provide a work transfer apparatus which can transfer works at high speed with controlling respectively the posture of the right and left of works. The work transfer apparatus includes an arm moving back and forth between machines in order to transfer work(s), a crossbar coupled to the arm, and a pair of right and left work holding devices provided at the left and right sides of the crossbar and tilt drive devices being provided on the arm, respectively controlling the work holding devices to rotate around an axis of a longitudinal direction of the crossbar.

The invention relates to a multi-dimensional ultrasonic tool system with a tool head action space being a quadric surface and a method of the multi-dimensional ultrasonic tool system, and belongs to the field of machine manufacturing. An X-direction movement device is transversely and fixedly arranged on two bosses at the rear of a base; a motor of the X-direction movement device is located on theleft side of an X-direction movement device main body; a Y-direction movement device is longitudinally and fixedly arranged on the base; a motor of the Y-direction movement device is located in a gapbetween the two bosses below the X-direction movement device; a fixture is fixedly arranged on a slide carriage of the Y-direction movement device; a Z-direction movement device is vertically and fixedly arranged on a slide carriage of the X-direction movement device; and an ultrasonic tool head is fixedly arranged on a slide carriage of the Z-direction movement device and is located above the fixture. The multi-dimensional ultrasonic tool system and the method have the advantages that various movement tracks are output by the tool head under the action of an ultrasonic vibrator, so that themachining precision and the machining efficiency are improved, the service life of a cutter is prolonged, and more complex curved surfaces which can not be machined by a traditional machine tool can be machined.

A wire material having a copper-zinc alloy layer, which is formed by action of thermal diffusion, and a zinc layer on its circumference surface is subjected to processes, including from a step of drawing the wire material to a step of reducing the diameter of the product, to reliably crash the copper-zinc alloy layer into particles. The particles are embedded in the circumference surface of a core to integrate the diffusion alloy layer and zinc layer with the core and prevent the diffusion alloy layer and zinc layer from falling off from the core. In addition, in order to cover cracks formed in the copper-zinc alloy layer during wire drawing with a zinc thin film, wire drawing is performed at temperatures appropriate for maintaining good malleability and ductility of zinc.

The invention relates to the technical field of valve machining, in particular to valve body sunperfinish machining equipment. The valve body sunperfinish machining equipment comprises a clamping tooling for clamping and installing a valve body, a machining platform arranged to be adjacent to the clamping tooling, a hole drilling mechanism slidably installed on the machining platform and an enclasping mechanism installed on the machining platform and located between the clamping tooling and the hole drilling mechanism. According to the valve body sunperfinish machining equipment, by means of the manner that sliding of the hole drilling mechanism is utilized to drive the enclasping mechanism to enclasp connection mouth ends to be subjected to hole drilling machining, the pressure from holedrilling on the connection mouth ends by the hole drilling mechanism is counteracted, the valve body integrally will not generate a tendency of rotating in the hole drilling process due to the pressure of the hole drilling mechanism, and the technical problem that the machining precision is reduced due to the valve body is subjected to uneven force in hole drilling is solved.

The invention provides a machining method for numerical control turning of a circular arc chamfer on a shaft excircle surface. The machining method comprises the following steps of: A. carrying out numerical control programming on a machining process in advance according to design requirements, and determining a circular arc chamfer R of a shaft needing to be turned and the shaft excircle surface Xb as a combination curve Xa when a numerical control turning curve graph is determined; B. setting machining parameters of a turning machine as the rotating speed S being 2500r/min and the feeding speed F being 70mm/min; and C. machining the Xa at one time to cause the shaft excircle surface and the circular arc chamfer to be in smooth connection. The machining method has the beneficial effects that the smooth connection of the circular arc chamfer and the shaft excircle surface is ensured; a machining procedure can also be reduced; the operating cost is reduced; the machining accuracy and efficiency are improved; and the machining method has very wide application prospect.

The invention discloses a method for machining a bottle-shaped shaft of a large pumped storage generator motor, and belongs to the technical field of motor shaft machining. The method is characterizedby comprising the following steps of a, boring a matching hole of the center of a large end and a transition connecting plate; b, turning an outer circle and a welding groove of the transition connecting plate, and assembling and welding the transition connecting plate into a shaft center hole in the large end of the bottle-shaped shaft; c, mounting a process dummy shaft at the large end of the bottle-shaped shaft; d, turning the process dummy shaft; e, on a working platform of a numerical control boring machine, erecting and installing the process dummy shaft to be parallel to the numericalcontrol boring machine by using angle iron, pressing a workpiece, checking by using a height gauge according to a line, pressing a gauge on the lower side surface of the machined groove by using a dial gauge, moving the machine tool away along an X axis, checking by using the height gauge according to the line, and machining a magnet yoke key groove to obtain a bottle-shaped shaft finished product. The chuck precision of a horizontal lathe does not affect the rotation center of the bottle-shaped shaft, the machining difficulty is reduced, the machining stability is guaranteed, the machining precision is improved, and machining operation is more convenient.

The invention discloses a shaft part machining clamp, and relates to the technical field of shaft clamps. The shaft part machining clamp comprises a mounting base, screw rods and polished rods are arranged at the two ends of the inner side of the mounting base, and the mounting base is in threaded connection with a first mounting frame and a second mounting frame through two sets of screw rods respectively. When the shaft part machining clamp is used, two sets of rotary supporting wheels are used for pre-supporting a part, then the supporting wheels are pushed till the supporting wheels make contact with a shaft part, and the supporting wheels are combined with the other two sets of rotary supporting wheels to form a triangular stable structure, so that the shaft part is firmly clamped, when a clamped part needs to be machined, only two sets of mutually matched electric rollers need to be pushed at the same time, the part is supported from the position under the part till the part is completely separated from the two sets of rotary supporting wheels, then the electric rollers are started, the part is driven to move horizontally, and the part is clamped after an original clamping section is exposed, so that time waste caused by re-clamping is avoided.

The invention relates to the technical field of numerical control machining equipment, in particular to a numerical control machining center capable of achieving multi-face machining through one-time clamping. The numerical control machining center comprises a lathe bed, a multi-station clamp mechanism and a machining mechanism. The multi-station clamp mechanism comprises a B-axis rotary table, a rotary table stand column, a C-axis rotary table and a first clamp fixing base, the B-axis rotary table is installed on the lathe bed, the rotary table stand column is rotatably installed on the B-axis rotary table, the C-axis rotary table is installed on the rotary table stand column, and the first clamp fixing base is rotatably installed on the C-axis rotary table; a rotating shaft of the first clamp fixing base is perpendicular to a rotating shaft of the rotary table stand column; and the machining mechanism is installed on the lathe bed, the machining mechanism comprises a machine tool spindle, and the machine tool spindle corresponds to a clamp installed on the first clamp fixing base. Through rotation of the rotary table stand column and the first clamp fixing base, five faces of a workpiece can be machined by the machine tool spindle under the condition of one-time clamping, and therefore the machining production efficiency is greatly improved, and meanwhile the situation that the machining precision is lower due to multiple times of clamping is avoided.

The invention relates to a rubber cutting machine capable of carrying out precise machining. The rubber cutting machine comprises a rubber guide base used for containing rubber, a rack is arranged in the rubber guide base, the end face, opposite to the rubber guide base, of the rack is provided with a rubber cutter, and the rubber cutter is controlled by a hydraulic cylinder which is arranged on the upper end face of the rack. According to the rubber cutting machine capable of carrying out precise machining, a baffle is arranged between the tail end of the rubber guide base and a vertical plane where the rubber cutter is located, a slide rail is arranged at the joint of the upper end face of the rubber guide base and the side end face of the rubber guide base, and the baffle extends into the sliding rail. By means of the technical scheme, rubber can be fixed to the position where the rubber is machined through the baffle which can carry out precise positioning, and therefore machining precision reducing caused by deviation generated when a worker adjusts the rubber machining position can be avoided; meanwhile, due to elasticity of the baffle, the baffle can prevent the rubber cutter from cutting the rubber obliquely when the rubber makes contact with the rubber cutter.