79 results about "Micro drilling" patented technology

The invention relates to a full-automatic quality detection device of a micro drill point for drilling a PCB in the technical field of tool detection, which comprises a feeding mechanism, a rotary worktable, a micro drill rotary mechanism, a height adjusting mechanism, a vision detection device and a discharging mechanism, wherein the feeding mechanism, the rotary worktable and the discharging mechanism are respectively and correspondingly arranged at a feeding station, a rotary station and a discharging station of a working platform, the micro drill rotary mechanism and the height adjusting mechanism are sequentially arranged at the side face of the rotary table, the vision detection device is arranged at a vision detection station of the working platform, the feeding station and the rotary station are arranged at the same side, the discharging station and the feeding station are positioned at two ends of the working platform, and the vision detection station and the discharging station are positioned at the same side. The micro drill rotary mechanism and the height adjusting mechanism can enable a micro drill to simultaneously realize the circumferential rotation and the axial real-time precise adjustment, can fine adjust the axial positioning height of the micro drill in real time, and ensure the imaging quality of a blade surface and the measurement precision of geometric parameters.

A miniature machine tool for micro-machining is capable of performing on a workpiece at least one conventional mechanical machining operation and another micro-machining operation such as electrochemical machining (ECM), electro deposit machining (EDM), micro-milling or micro-turning or micro-drilling. The machine tool includes a holder in which the workpiece is clamped during all successive machining operations so that the machining operations may be performed in succession without intervening reclamping of the workpiece. This increases dimensional accuracy when micro-machining high-precision components.

The invention discloses a superhard multi-layer composite diamond-like coating. The coating is sequentially composed of a micro drilling base body, a bottom bonding layer, a middle transition layer and a surface layer. The bottom bonding layer is a metallic titanium or metallic chromium layer, the middle transition layer is a low-hardness diamond-like film, and the surface layer is a composite diamond coating. The composite diamond coating is a titanium or titanium doped diamond-like coating. According to a preparation method of the superhard multi-layer composite diamond-like coating, the cathode filter electric arc technology, the ion beam technology and the vacuum sputtering technology are combined, and super-thick diamond-like composite coating deposition is achieved on a sample base. The obtained superhard diamond-like coating has the beneficial effects of being high in film base combination strength, low in internal stress, low in friction coefficient and long in service life.

The invention relates to a multi-functional test and experiment platform for indoor research of jet drilling, which includes a power module, an experimental working condition control module, a test and detection module, a fluid circulation module and a jet drilling assembly. The power module includes a micro-drilling experimental device and a mud pump; the experimental working condition control module includes a central control unit and a confining pressure control unit; the test and detection module includes a sensor detection unit, a data acquisition unit, a data processing unit, and a display storage unit; fluid circulation The module includes faucets, water tanks, sedimentation filter tanks, sewage pumps and a simulated wellbore with an open upper end and a closed lower end. The multifunctional test and experiment platform of the present invention can simulate the actual jet drilling process in the laboratory, creating necessary conditions for the indoor experimental research of jet drilling, and can realize automatic control during the experiment process, and can make the jet drilling underground and invisible Visualization of jet drilling process, thus turning semi-empirical research into scientific and quantitative research.

The invention relates to a right film of micro drilling head used to drill the soft board of printed circuit board. It is characterized in the improvement of micro drilling special rigid film. Wherein, said film should have better abrasion and high-temperature resistant properties, to improve the quality and service life of drilling hole, and improve the processing efficiency of printed circuit board and reduce the producing cost. The preparation comprises: its base material is the general drilling head, whose surface has at least three films as transition layer that contains chrome, nitride transition layer that contains chrome and nitride chrome, nitride rigid abrasion resistant layer that contains nitride chrome, from inner to outer. Said transition layer, nitride transition layer and nitride rigid abrasion resistant layer can be added with titanium and aluminum, while the nitride transition layer comprises the inner mixed layer and the outer mixed layer.

The invention relates to a micro-drilling method for a flexible circuit board, and the method comprises the steps: taking out the flexible circuit board, and dividing the surface of the flexible circuit board into a processing region and a test region; setting the processing parameters of a to-be-drilled hole in the test region, wherein the processing parameters comprise the number of drill holesand the diameters of the drill holes; selecting miniature drill bits with different diameters according to the diameters of the drill holes in the processing parameters, carrying out the processing ofthe drill holes in the test region, enabling the number of actual drill holes to be matched with the number of the drill holes in the processing parameter, and enabling the diameters of the actual drill holes to be matched with the diameters of the drill holes in the processing parameter; detecting the deviation between the actual parameters of the processed drill holes and the processing parameters after the drill holes are cooled to room temperature; carrying out the adjustment of the actual parameters according to the detected deviation, and then setting the final actual parameters for theprocessing of the drill holes in the processing regions; carrying out the drill hole processing in the processing region according to the final actual parameters, and completing the drilling technology.

The invention discloses a ceramic-based vertical micro-thin probe-card connecting opening MVW structure. The ceramic-based vertical micro-thin probe-card connecting opening MVW structure comprises a reinforcement plate, a PCB mainboard, a grounding plate, a ceramic substrate, a power board, a micro drilling hole, a micro-thin metal wire, epoxy resin, PPS1 power contacts, PPS2 power contacts, grounding contacts, signal contacts, a contact plating, a copper plating, a nickel plating, a gold plating, a vertical probe card head, a probe and the like; the ceramic-based vertical micro-thin probe-card connecting opening MVW structure is characterized in that the vertical probe-card connecting system MVW structure is small in whole connecting base size, short in making period and low in cost; thelarge-current high-frequency test requirement can be met, and the reliability is improved. The vertical probe card head is in direct mechanical connection with the PCB mainboard, the circuit distanceis short, the transmission speed is high, the frequency is high, simple assembling is achieved, the structure can be reused, and can also be repaired after abrasion, contact portions are polished andsubjected to gold plating anew, and repairing is convenient and fast and easy and convenient; the defects of the prior art are overcome.

The invention discloses a high-precision resin diamond micro-drilling excircle grinding wheel and an application. By means of the grinding wheel and the application, the problem that product machining efficiency is low, rejection rate is high, a cutting edge is not sharp and the like due to the fact that a printed circuit board (PCB) drill material is high in hardness, abrasion resistance and brittleness and small in drill edge diameter (0.10-6.50mm) and the like is solved. The grinding wheel is composed of a base body and a work grinding material layer. The work grinding material layer comprises, by weight, 50-70% of resin binder, 10-20% of white corundum, 1-5% of nanoscale MgO, 5-15% of copper powder, 1-10% of nanoscale TiO2, 10-20% of diamond and 5-10% of CBN. The grinding wheel has the advantages of being high in grinding efficiency; being good in grinding wheel shape retention and high in abrasion resistance; being low in grinding temperature and good in heat conduction; being high in ground workpiece precision and sharp in cutting edge; greatly reducing rejection rate caused by needle breaking.

A diamond micro-drilling grinding tool comprises a base body and a grinding layer. The grinding layer is a diamond particle layer and is arranged on the surface of the base body in an electroplated mode, and the thickness of the grinding layer ranges from 0.04 mm-0.08 mm. The top end of the base body is arranged to be a grinding head, the top end face of the grinding head is a plane and is provided with a cross-shaped semicircular groove, and a center hole used for eliminating a low-speed grinding area is formed in the axial center of the grinding head. A step-shaped base is arranged between the grinding head and the base body and comprises a primary chambering step on the grinding side and a secondary chambering step on the base body side. The diamond micro-drilling grinding tool is mainly used for drilling and grinding micro holes of crisp and hard materials, a vertical tool feeding mode can be achieved and makes tool setting and machining program compiling easier compared with a traditional spiral tool feeding mode, and the machining period is effectively shortened. The phenomena that a micro grinding head is blocked and a grinding layer is abraded are effectively improved, the quality and size uniformity of the micro holes is improved, and the service life of the grinding tool is prolonged.

The invention discloses a steerable micro drilling and milling device used for workpiece inner and outer cavity processing. The steerable micro drilling and milling device comprises a connecting frame, a gearbox, a transmission mechanism and a detachable tool structure, wherein the connecting frame comprises an upper double-layer ring body connected with a vertical type milling machine main shafthousing and a lower cylinder; the transmission mechanism is arranged in the gearbox; the transmission mechanism comprises a transmission shaft, an output shaft, a drive bevel gear and a driven bevel gear; a tapered shaft section of the transmission shaft extends out of the cylinder and is mounted on the main shaft of the vertical type milling machine; the drive bevel gear is in transmission connection on the transmission shaft through a key; a tool mounting section of the output shaft leftwards extends out of an output shaft mounting barrel; the detachable tool structure is mounted on the toolmounting section of the output shaft; and the driven bevel gear is in transmission connection on the output shaft through a key. The steerable micro drilling and milling device can be assembled ontothe vertical type milling machine to complete processing processes of drilling holes, milling small steps, milling inner molded surfaces and the like for workpiece inner and outer cavities, is compactin structure, is convenient to dismount, expands the processing range of the vertical type milling machine, and improves processing efficiency and processing precision.

The invention relates to a rotary drilling large-scale experimental bench with adjustable well deviation and vertical-depth ratio which is used to conduct simulation drilling on highly-deviated wells, directional wells and horizontal wells. The experimental bench includes a power end system, a wellbore system, a well bottom micro drilling system, and a data acquisition system. A hydraulic lifting device, a telescopic slide rail frame and a detachable mobile slide rail frame constitute a base of the whole experimental bench. The power end system is composed of a hydraulic servo mechanism, an adjustable-speed motor, a fluid inlet cavity, and a quick adapter. The wellbore system is composed of a PVC pipe, a glass pipe, and a steel wire hose. The well bottom micro drilling system is composed of a micro drill, a rock box, a rock mounting guide rail, and a rock box guide rail. Experimental study of the drilling kinetic parameters, friction torque and whirling and buckling behavior of a rotary drill string can be conducted under various fluid circulation mediums, various drilling conditions and various wellbore structures. The experimental bench is simple to operate, and has complete functions.

The invention relates to the technical field of processing equipment, in particular to an automatic micro-drill processing center. The automatic micro-drill processing center comprises a working platform, wherein the working platform is circular; a feed mechanism, a clamping mechanism, a grooving mechanism, a point grinding mechanism and a back-off mechanism are mounted on the working platform; and the feed mechanism, the grooving mechanism, the point grinding mechanism and the back-off mechanism surround the clamping mechanism. With the adoption of the feed mechanism, the clamping mechanism, the grooving mechanism, the point grinding mechanism and the back-off mechanism, procedures such as grooving, point grinding and back-off on a micro-drill can be sequentially realized simply after an operator puts a material box, where a micro-drill to be processed is contained, onto a designated position of the feed mechanism and starts the automatic micro-drill processing center. Compared with the traditional processing equipment, the automatic micro-drill processing center is high in automation degree and efficiency.

The invention provides a novel micro-drill automatic welding device and a welding method. The welding device comprises a base. The upper end of the base is provided with a telescopic workbench. The left side and the right side of the upper end of the telescopic workbench are oppositely provided with a drillstock feeding mechanism for automatic and sequential feeding, and a drill bit feeding mechanism for automatic and sequential feeding. Electrodes for welding are arranged above the discharging end of the drillstock feeding mechanism and the discharging end of the drill bit feeding mechanism correspondingly. The electrodes are connected with a pressing mechanism. A drill bit conveying mechanism is arranged above the drill bit feeding mechanism. The drill bit conveying mechanism is connected with the drill bit feeding mechanism through a conveying assembly. The device is compact in structure and small in occupied area, fast water flow operation of micro-drill automatic welding is achieved, and micro-drilling welding efficiency and quality are improved.

The invention discloses a diamond micro drilling tool and a machining method thereof. A grinding layer is plated on the surface of the micro drilling tool, and comprises a fixed grain composite plating layer and micron diamonds; and the fixed grain composite plating layer comprises nanometer diamonds and nanometer polytetrafluoroethylene. Meanwhile, the invention further discloses the machining method of the diamond micro drilling tool. A chemical composite plating method is adopted to prepare a micro drill containing diamonds; and the micro drill is prepared by using a chemical plating method, and has the characteristics of simple process, low cost and good wear resistance. The fixed grain composite plating layer in the grinding layer comprises the nanometer diamonds and a polytetrafluoroethylene composite plating layer; the nanometer diamonds are added to achieve higher hardness of the composite plating layer and better wear resistance; the wear resistance of the plating layer and the holding force of a fixed grain layer to diamond abrasive grains are improved; and nanometer polytetrafluoroethylene particles can reduce friction between the plating layer and a hole wall, reduce the wear of the fixed grain layer, and prolong the service life of the micro drill.

The invention belongs to the technical field of micro-drilling visual quality detection, and discloses a micro-drilling visual detection method based on inner-cone mirror surface scanning panoramic imaging. The method simultaneously adopts a device with an inner cone mirror surface annular local imaging device, an image acquisition and processing unit and a digital motion unit; firstly, an image with a clear end edge is shot and obtained, and if the end edge is judged to be qualified, continuous shooting is performed to obtain a plurality of side edge images, the side edge images are unfoldedto extract image clear bands, and then a final clear and complete side edge image is obtained through splicing. The invention further provides a micro-drilling visual detection system using the method. According to the invention, in a one-time motion process, the clear, complete and all-around side edge images can be obtained without converting a shooting view angle of a camera, so that the problems that the current micro-drilling detection technology is high in cost, has the detection dead angle, is unstable in detection quality and the like are overcome, the detection efficiency and precision of the micro-drill are greatly improved, and the requirements of batch production and detection are met.