12results about How to "Achieve high precision machining" patented technology

The invention discloses a drilling method for a right-angle square groove, and relates to the field of printed circuit board processing, and the drilling method comprises the following steps: 1, determining the selection of a minimum drill bit according to the thickness of a processed board body and the number of laminated boards, determining the size of the drill bit supported by the thickness and the number of laminated boards, enabling the drill bit with a smaller diameter to generate a smaller R angle, and enabling the drill bit with a smaller diameter to generate a smaller R angle; the drilled right-angle square groove looks closer to an ideal right-angle shape; secondly, the drill bit determined in the first step serves as the minimum drill bit size, namely the first drill bit, the four corners of the groove body are determined through the drill bit, the R angle is reduced to the maximum extent, and the first drill bit serves as the first tool for machining, so that the outline of the right-angle square groove is closer to the perfect right-angle shape. According to the drilling method for the right-angle square groove, by optimizing drill bit selection, the machining sequence and technological parameters, the machined R angle is effectively reduced, the precision and consistency of the right-angle groove are improved, and the requirement of the industry for the high-precision right-angle groove is met.

This application discloses a machine tool structure with a combined machining head. The application includes: a first base and a second base, the first base having a working area for placing the workpiece to be processed; a column, on which a first X-axis linear module is mounted; a first group of electrical discharge machining (EDM) heads, comprising at least four heads mounted on the first base and respectively connected to the first X-axis linear module, each of the four heads having an independent Y-axis linear module and a Z-axis linear module; and a second group of EDM heads, comprising at least one head mounted on the first base, the second base having a second X-axis linear module, the at least one head connected to the second X-axis linear module, the at least one head having an independent Y-axis linear module and a Z-axis linear module, and all four heads connected to an EDM power supply.

The invention provides a machining tool and method for a butt joint shaft of a ceramic matrix composite airfoil product component. The machining tool and method are used for solving the technical problem that the precision of the butt joint shaft of an existing airfoil product component cannot meet the design requirement. The machining tool comprises a base, a supporting unit and a tensioning assembly. The base is of a rectangular plate-shaped structure, the supporting unit comprises two supporting assemblies which are symmetrically arranged in the length direction of the base, and a gap exists between the two supporting assemblies; each supporting assembly comprises a plurality of supporting seats, each supporting seat is vertically installed on the base, and the upper end faces of all the supporting seats jointly form a curved surface which is the same as the upper end face of a to-be-machined airfoil product component skeleton structure; the tensioning assembly comprises a plurality of braces; the two ends of each brace are connected with the tops of the two corresponding supporting bases in the two supporting assemblies correspondingly and used for fixing the two corresponding supporting bases correspondingly. The airfoil product component obtained based on the machining tool is high in butt joint shaft precision.

The application relates to the technical field of insulator manufacturing, and discloses a roughing device for an electric porcelain insulator blank, which comprises a rack, a mold is rotationally connected to the upper surface of the rack, and a lifting frame is slidably connected to the outer surface of the rack; an adjusting shaft is rotationally connected to the outer surface of the lifting frame, a first roughing cutter and a second roughing cutter are fixedly connected to one end of the adjusting shaft, and a first adjusting assembly is arranged at the other end of the adjusting shaft and used for controlling the rotating angle of the adjusting shaft. The roughing device for the electric porcelain insulator blank can effectively solve the problem that, when the cutting amount of the blank is large, the cutting resistance of the roughing cutter is large, the roughing cutter vibrates, scratches, unevenness, burrs and other defects appear on the surface of the blank, the surface flatness is reduced, the size precision of the electric insulator blank is reduced, and the electrical performance and appearance of the insulator are affected.

The adjustable clamp for high-precision plane part machining of the single-shaft polishing machine comprises a rotating disc, a sliding groove disc, an extension rod and a fixing block, and the rotating disc and the sliding groove disc are coaxially arranged and can rotate relative to each other; a screw hole for mounting a set screw is formed in the turntable; the sliding groove disc is provided with sliding grooves in the radial direction, correspondingly, the rotary disc is provided with arc grooves, the arc grooves and the sliding grooves are arranged in pairs to form composite track grooves, and the composite track grooves are arranged in groups in the circumferential direction. The extension rod is arranged in the sliding groove, a fixing block is arranged at the outer end of the extension rod, and the fixing block is rotationally connected with the extension rod. Cylindrical rods are arranged at the inner ends of the extension rods and matched with the arc grooves. The clamp can meet the machining requirements of workpieces of different sizes and different shapes, and operation is easy. In the machining process, the non-pressure polishing effect can be achieved, meanwhile, the movement track of a workpiece on the grinding disc can be controlled, and the machining technology can be adjusted easily.

A kind of plate laser cutting equipment and control method, including processing table, portal frame, transverse drive component, longitudinal drive component, image acquisition component and laser cutting component;Portal frame is slidably fitted on processing table, transverse drive component is arranged in the lower end of portal frame, and transverse drive component is used to drive portal frame to slide along the length direction of processing table;Slip seat is slidably fitted on the top of portal frame, longitudinal drive component is arranged in the bottom of slip seat, and longitudinal drive component is used to drive slip seat to slide along the width direction of processing table;Image acquisition component and laser cutting component are oppositely arranged on the two sides of slip seat, so as to realize image acquisition and laser cutting in turn.The overall structure is simple, image acquisition component and laser cutting component are arranged, image acquisition component is set to be able to move along the length and width direction of processing table with drive component, so as to complete overall scanning to entire plate.

The invention discloses an automobile steering wheel ringing mechanism stamping die convenient to discharge, and belongs to the technical field of stamping dies, the automobile steering wheel ringing mechanism stamping die convenient to discharge comprises a die holder, a die frame is connected to the die holder, a female die is connected to the die frame, a plurality of implanting holes are formed in the outer wall of the female die, and nozzles with capillary micropores formed in the ends are inserted into the implanting holes; a pressure-relieving demolding assembly used for discharging is arranged between the inner side of the mold frame and the female mold, the pressure-relieving demolding assembly comprises a pressure-relieving cylinder which corresponds to the inner side of the mold frame and is connected to the mold base, and the one-way valve A is opened, air is sucked into the space, corresponding to the upper portion of a pressure-relieving plate, in the pressure-relieving cylinder through an air suction pipe, and the air inflow of the air suction pipe in unit time is small; therefore, the space, corresponding to the upper portion of the pressure buffering plate, in the pressure buffering cylinder is in a low-pressure environment, the pressure buffering cylinder is matched with the pressure buffering spring A and the pressure buffering spring B, the good buffering effect on the male die can be achieved, and meanwhile the load strength of the pressure buffering spring A and the pressure buffering spring B can be reduced.

The invention relates to the technical field of semiconductor manufacturing, in particular to a semiconductor chip scribing process, which comprises the following steps of: bonding and curing a silicon wafer and a ceramic wafer, and forming a bonding layer between the silicon wafer and the ceramic wafer; cutting the surface of the silicon wafer by using a scribing knife, and forming a wiring channel and a scribing channel on the surface of the silicon wafer; cutting the two sides of the scribing channel by adopting a scribing knife, and forming a stress release groove penetrating through the silicon wafer and the bonding layer in the thickness direction of the silicon wafer; cutting off the silicon wafer and the bonding layer at the scribing channel by using a first cutting knife; and cutting off the ceramic wafer at the scribing channel by using a second cutting knife to form a plurality of chip units. According to the invention, the interference of the colloid and the deviation caused by the flowing and volume change of the colloid when the distance between the chips is low are avoided, the high-precision processing is realized, and the production benefit is improved.

This invention provides a method, device, and medium for compensating for mold grinding errors based on grinding wheel wear, applicable to the field of machining. The method includes: acquiring a wear image of the grinding wheel to be processed; obtaining the edge contour information of the grinding wheel; determining the vertical wear height H and wear volume V of the grinding wheel; if V > V0, determining the abscissa set U of the mold point cloud; and determining the compensation correction parameter F of the i-th surface point cloud of the optical surface mold to be processed. i According to F i U i The base circle radius R of the optical surface mold to be processed base The compensation correction value Z for the i-th surface point cloud is obtained. i The invention controls a mold correction machine to correct the optical surface mold to be processed. This invention incorporates the wear factor of the grinding wheel into the error compensation process for the optical surface mold, enriching the traditional compensation evaluation indicators for optical surface molds, improving compensation accuracy, and facilitating high-precision machining of optical surface molds.

The utility model relates to laser cutting technical field especially relates to a five -axis laser cutting machine, including frame, and the frame installs support platform, three -axis movement module, installs on the support platform, is used for the position of laser cutting head X -axis, Y -axis and Z -axis adjustment, laser cutting head, installs on three -axis movement module, is used for to workpiece laser cutting, single -arm cradle, install on the support platform, are used for workpiece around Y -axis or Z -axis rotation, upper frame, install on the frame, are used for to laser cutting head, single -arm cradle and three -axis movement module support and protection, the utility model provides a five -axis laser cutting machine through five -axis linkage of laser cutting machine, can cut the cutting of different angle and position to part, realizes the high accuracy processing of complex shape part, and can accurately coordinate five axle's movement, ensures the stability and accuracy of cutting process.

This utility model discloses a multi-head cutting tool, relating to the field of cutting tool technology. It includes a tool body and multiple cutting heads. The tool body includes a docking portion and a main body portion. The docking portion is used to connect with a processing machine. The orthographic projection area of ​​the docking portion relative to the main body portion is smaller than the orthographic projection area of ​​the main body portion relative to the docking portion, forming a boss portion between the docking portion and the main body portion. The multiple cutting heads are spaced apart along the length of the main body portion, with the same spacing between adjacent cutting heads. By using the multi-head cutting tool disclosed in this application, multiple grooves with the same spacing and internal dimensions (including groove depth and groove width) can be machined from a single raw material, thus solving the problem of low efficiency in the prior art. Furthermore, due to the arrangement of multiple cutting heads, multiple qualified grooves can be machined without adjusting the position of the multi-head cutting tool, achieving high-precision machining.

The invention relates to the technical field of optical part machining, and provides a large-size high-precision optical part machining method which comprises the steps that a first side face, a second side face, a third side face and a fourth side face are machined to a first surface shape parameter; the disc is placed on the platform, the microcrystalline block is arranged between the platform and the disc in a cushion mode, the second end face of the optical part is downwards placed into the avoiding hole, then the positioning plate is installed on the disc, and the positioning plate abuts against the first side face, the second side face, the third side face and the fourth side face; grinding and polishing the first end surface to a first surface shape parameter, and ensuring that the first end surface is perpendicular to the four side surfaces and the angle error is not greater than a first angle threshold value; and according to the method for machining the first end face, the second end face is frosted and polished to the first surface shape parameter. According to the machining method, through the reasonable technological process and the design of the special end face machining tool, a traditional optical cold machining method can be used for machining large-size and high-precision optical parts.