13results about How to "Improve drilling effect" patented technology

The utility model relates to the technical field of medical instruments, and discloses a root canal linear passage bur, which comprises a drill bit, a bur body and a connecting part, the drill bit comprises a drill body and a drill tip, the drill body is detachably connected with the bur body, emery is sprayed on the outer wall of the drill body by adopting a sand blasting process, a first external thread is arranged on the outer wall of the drill tip, and the length of the drill tip is 2-3mm; the first external threads are arranged on the outer wall of the drill tip, and the corundum is sprayed on the drill body by adopting a sand blasting process, so that the drill tip can move more stably when being drilled into teeth due to the arrangement of the first external threads, the sprayed corundum can enhance the overall strength of the drill body, and meanwhile, the drill tip is prevented from being damaged. The drill bits and the needle body are detachably connected, so that a doctor only needs to prepare a plurality of drill bits of different models before an operation and replace the drill bits according to actual requirements in the operation process, and compared with the prior art, the drill has the advantages that the drilling capacity is good, the occupied area of an instrument tray is reduced, and the operation of the doctor is facilitated.

The invention discloses a phenolic aldehyde board for biomass circuit board drilling and a preparation method and application thereof.The preparation method of the phenolic aldehyde board for biomass circuit board drilling comprises the steps that cashew nut shell oil, phenol and an acid catalyst are mixed, then sodium hydroxide, paraformaldehyde and formaldehyde are added for a reaction, and a cashew nut shell oil modified phenolic aldehyde solution is prepared; diluting and impregnating wood pulp paper to prepare a pre-cured sheet; and finally, carrying out hot pressing to form the phenolic aldehyde plate. According to the biomass phenolic resin, the preparation cost of the phenolic resin can be remarkably reduced, environmental protection benefits are achieved, and the comprehensive performance of the biomass phenolic resin can be kept equivalent to that of pure phenolic resin while the permeability of a glue solution to wood pulp paper and the gluing uniformity are guaranteed.

This application discloses a thermoplastic drill bit, relating to the field of drill bit technology, comprising: a shank, a guide extrusion section, and a drill tip extrusion section; one end of the guide extrusion section is connected to the shank, and the diameter of the guide extrusion section is D; the drill tip extrusion section is conical, including a first working section and a second working section, the first working section being connected to the small end of the second working section, and the large end of the second working section being connected to the other end of the guide extrusion section; the first working section is hemispherical, and the surface of the second working section includes spaced-apart first arc-shaped extrusion sections and planar clearance sections; the cross-sectional profile of the second working section is formed by spaced-apart arc-shaped segments formed by the first arc-shaped extrusion sections and straight segments formed by the planar clearance sections, and a first height difference exists between the first arc-shaped segments and the straight segments. This application can improve the machining performance of the drill bit and enhance the surface finish of the machined hole wall.

The utility model discloses a directional positioning device for building ground drilling and walking, including the connecting plate, both ends of connecting plate all are provided with the support column, the inside of connecting plate is provided with electric slide rail, the inside of electric slide rail is provided with the moving plate, the inside of moving plate is provided with the recess, the inside of recess is provided with the adjusting plate, the outer surface of adjusting plate both sides evenly is provided with the insertion hole, one side of moving plate is provided with the recess, the inside of adjusting plate is provided with the connecting groove, the inside of connecting groove is provided with the screw rod, the outside of screw rod is provided with the moving block, one side of moving block is provided with the reinforcing rod, one end of reinforcing rod is provided with the drilling machine, the below of drilling machine is provided with the drill bit, the upper end of adjusting plate is provided with the transmission plate, the inside of transmission plate is provided with the driving wheel. The utility model discloses convenient staff adjustment has improved the drilling effect of device.

The utility model discloses a telescopic guiding drilling device, including the drilling rod mobile subassembly of installing on the work table, first support subassembly, second support subassembly and drilling mechanism are installed in turn on the drilling rod mobile subassembly, the guiding mechanism is installed on the work table one end, the drilling rod is rotatably installed in the guiding mechanism, first support subassembly and second support subassembly in proper order, drilling rod mobile subassembly is driven to be connected with drilling mechanism, the guiding mechanism is located first support subassembly one side of facing away from second support subassembly, and one end of drilling rod is connected with drilling mechanism and installs, and drilling rod mobile subassembly drives the drilling rod transverse displacement through drilling mechanism, and drilling mechanism drives the drilling rod rotation and carries out drilling. The utility model discloses through guiding mechanism realizes can accurate alignment workpiece need drilling's position, and when the whole structural design of the utility model carries out drilling deep hole, realizes drilling precision, drilling effect is good and drilling efficiency is high, avoids the quality problem such as axis deviation, hole diameter expansion or hole shape is not round and so on that drilling appears.

This invention discloses a method and apparatus for predicting the results of a thermo-pressure coupled impact rock breaking test. The prediction method includes: parameter selection; establishing a rock damage morphology test dataset using impact tests; selecting key factors that cause differences in rock damage state as parameters to be changed and used as input parameters for a neural network; these parameters include: impact velocity, drill bit shape, drill bit spacing, drill bit diameter, temperature, and confining pressure; saving the rock damage test results and corresponding input parameters as a sample data set based on the thermo-pressure coupled impact rock breaking test apparatus; changing the parameters to conduct the next set of tests until all experiments under different parameters are completed; and establishing a dataset for neural network training; etc. This application can predict the rock breaking effect under different confining pressures, temperatures, cutting teeth, and tooth spacings under rotating impact loads, thereby analyzing the influence of the above factors on the rock breaking effect under rotating impact loads.

The utility model relates to the field of geological survey, concretely relates to a kind of geotechnical layer drilling equipment for geological survey, including bearing seat, fixed support leg is symmetrically installed below the bearing seat, drill bit is provided below the bearing seat, hydraulic rod is symmetrically installed above the bearing seat, each group hydraulic rod output end is equipped with downholder.The utility model can make output shaft drive drill bit reciprocate in the process of rotary drilling, also can drive each group conveying ring reciprocate in each group conveying cylinder simultaneously, by this structure, drill bit can reciprocate slightly in the process of drilling, to improve drill bit drilling effect and efficiency, also can make gravel be conveyed to ground in turn effectively in conveying cylinder, avoid the friction of drill bit and gravel, reduce its service life, also facilitate gravel sample sampling when drilling, to greatly improve the practicability of equipment.

The utility model belongs to marble processing field, specifically speaking is a kind of marble drilling processing device, including work bench, the top both sides of work bench are slidably connected with clamping plate, the inside of two clamping plates is slidably connected with press plate, and the top of work bench and located the outside of two clamping plates are equipped with moving frame by self-locking slide rail;The cooperation between two clamping plates and two press plates can provide the force of pressing from top to bottom while clamping marble plate, effectively improve the stability in subsequent drilling process, avoid the problem that marble plate is offset due to vibration in drilling process and then lead to drilling failure, improve drilling accuracy and drilling effect, and in the drilling process, dust generated in drilling place can be absorbed by air suction fan and corrugated pipe, avoid dust flying everywhere to cause air pollution or even be inhaled by staff to cause threat to health, effectively improve the dustproof effect of the device.

This invention relates to the field of CNC machine tool technology and discloses a precision CNC machine tool for multi-hole hardware parts. The precision CNC machine tool for multi-hole hardware parts includes a machine body, on which a moving mechanism for driving a drill bit to move in multiple axes to drill holes in the hardware parts is provided. A lubrication mechanism for outputting cutting fluid is provided outside the drill bit. A cleaning assembly is provided on the machine body, and the cleaning assembly includes a connecting rod. A conical cover is fixedly installed at one end of the connecting rod. This precision CNC machine tool for multi-hole hardware parts, by setting up the cleaning assembly and using the connecting rod to fix the conical cover, avoids the splashing of cutting fluid and debris. Combined with the bent pipe on the side rod, opening the first solenoid valve on the main pipe allows the cutting fluid to be drawn out through the cylinder during drilling. The cutting fluid sprayed obliquely downwards towards the drill bit is partially drawn upwards by the cylinder, thus fully wetting the outside of the drill bit, resulting in better drilling performance.

A grouting anchor rod capable of draining water comprises a hollow anchor rod body, a drainage assembly, a grouting pipe and a side face reinforcing assembly, the side face of the hollow anchor rod body is sleeved with the drainage assembly, the drainage assembly is movably sleeved with the grouting pipe, and the side face reinforcing assembly is arranged at the conical end of the hollow anchor rod body. Wherein the side face reinforcing assembly comprises movable rods, pushing sleeves, connecting rod assemblies, non-return assemblies and rotating drill bit assemblies, the movable rods are movably installed in installation grooves in the side face of the hollow anchor rod in a circumferential array mode, the hollow anchor rod is movably sleeved with the pushing sleeves, the pushing sleeves are located at the end of the grouting pipe, and the connecting rod assemblies are hinged to the movable rods; the other end of the connecting rod assembly is hinged to a pushing sleeve, a non-return assembly is arranged on the pushing sleeve, and a rotating drill bit assembly is arranged at the end of the movable rod. And by arranging a connecting rod and a torsional spring, even if one rotating drill bit assembly cannot move, movement of the rotating drill bit assemblies in other directions cannot be affected, and then the reinforcing capacity is improved.

The invention relates to the technical field of centerless grinding machine machining, in particular to a punching device for an angle tooth matching face of a centerless grinding machine. The punching device comprises a base, a portal frame is installed on the base, a drilling machine is installed on the portal frame, a stabilizing mechanism used for stabilizing a drill bit of the drilling machine is arranged on the drilling machine, and a circular ring is arranged above the base; a moving mechanism used for moving the circular ring is arranged on the base, a mounting seat is rotationally mounted at the upper end of the circular ring, a rotating motor is mounted at the lower end of the circular ring, a driving shaft of the rotating motor rotationally penetrates through the circular ring and is coaxially provided with a rotating gear, and an annular tooth groove meshed with the rotating gear is formed in the outer wall of the mounting seat; and a fixing mechanism for fixing angle teeth of the centerless grinding machine is arranged on the mounting seat. Compared with the prior art, the angle tooth drilling device has the advantages that angle teeth can be fixed more stably, the fixing effect is better, and the angle tooth drilling effect is better.

This utility model discloses a hollow rotary cutting laser processing system, which includes: a dual-reflector assembly for receiving and controlling the propagation of light, the dual-reflector assembly including a first mirror and a second mirror; a rotating assembly for receiving the light emitted from the dual-reflector assembly and rotating the light at double speed; and a focusing assembly for receiving the light emitted from the rotating assembly and focusing the light onto a preset working surface. This utility model, through the first and second mirrors in the dual-reflector assembly, can achieve effects such as vertical translation, tilting, or translation plus tilting of the light, thus meeting the needs of collaborative processing. It allows the light trajectory to change during processing, thereby optimizing the drilling effect, reducing dependence on the laser, and improving the overall laser processing effect of the hollow rotary cutting laser processing system.