43results about How to "Improve surface machining accuracy" patented technology

The invention discloses acceleration and deceleration controlling means used in numerical control machine, the concept of 'add-acceleration' is introduced against the dynamic property of the controlled member, the add-acceleration is constant in stage of acceleration and deceleration, the two physical quantities of acceleration and add-acceleration are setting; the segmented handling method of add-accelerating sections, uniform accelerating sections, decelerated accelerating sections, uniform speed sections, add-decelerating sections, uniformly-retarded sections and decelerated deceleration sections is adopted, after the interval discrimination, the real-time interpolating calculation in every interval is exceeded based on the integral relation between the add-acceleration, acceleration, speed and displacement, the S type velocity curve is formed to realize the flexible acceleration and deceleration control; the destination discrimination process is proceeded before the interpolating calculation can increase the machining precision of the acceleration and deceleration control. The method is simple, the impact is small, the speed is smooth, the machining precision is high and the flexible control can be realized.

The invention discloses an electrochemical additive manufacturing method and an implementation device, namely, an electromechanical three-dimensional printing method and device. An electrochemical deposition mode is used for generating a component with the needed appearance size and a needed component. In the technology process, low-conductivity actuating media are adopted, and jet flow is adopted, or a tool electrode with an insulation shielding layer on the outer layer is adopted so as to improve the machining size precision.

The invention relates to a multi-cutter combined whirlwind milling method and a dedicated cutting device thereof. The multi-cutter combined whirlwind milling method is adopted for processing shaft-type products. The dedicated cutting device is characterized in that the shaft of the cutter body is supported on a revolving body through a bearing; at least a cutter body is distributed and connected on the concentric circumference of the revolving body; each cutter body is connected with a transmission mechanism for enabling the cutter body to rotate; the revolving body is connected with a fixed sleeve support through a bearing and driven by a motor and a transmission mechanism. The method has the advantages that a plurality of cutter bodies revolving along the revolving body as well as rotating automatically are fixed on the concentric circumference of the revolving body, and each cutter performs high-speed cutting on different processing diameters, thus improving the cutting resistance. By the method, the purpose of saving energy, improving effect and surface machining precision can be fulfilled. The production efficiency of the cutting device is improved a plurality of times compared to an ordinary whirlwind milling machine, and dozens of times compared to turning efficiency. Under the same cutting condition, the power output is greatly reduced.

The invention discloses a laser direct writing pre-forming photocatalysis plating preparing method for a material surface metal pattern, and belongs to the technical field of material surface treatment. The laser direct writing technology and the photocatalysis plating technology are combined, and on the basis of a laser direct writing etched pre-formed high-precision nano semiconductor film pattern, photocatalysis plating is conducted for preparing the high-quality metal pattern. The laser direct writing pre-forming photocatalysis plating preparing method for the material surface metal pattern is environment-friendly, short in process, capable of saving metal, efficient and low in cost and has universality and high stability; and the prepared metal pattern is high in size precision, goodin clad layer surface quality and excellent in performance, and the bonding strength between the prepared metal pattern and a base body is high.

The invention discloses a Ti (C, N)-based metal ceramic with a positive gradient ring core phase and a preparation method thereof. The outer ring phase of a metal ceramic ring core structure is rich in W/Mo and poor in N compared with the inner ring phase, a solid solution metal element W/Mo in a ring core phase is distributed in a positive gradient mode from the core part to the outer ring, and the metal ceramic ring core structure is of a positive gradient structure opposite to a conventional ring core phase in composition. Compared with a conventional ring core phase Ti (C, N)-based metal ceramic, a positive gradient ring core phase structure can improve the interface wetting and bonding strength of a ceramic phase and a binding phase, reduce the lattice mismatch degree of the interface in a ring core, and effectively improve the strength and thermal shock resistance of the Ti (C, N)-based metal ceramic. On the basis of keeping good obdurability, the metal ceramic has higher obdurability and thermal shock resistance compared with conventional metal ceramic, can improve the surface machining precision of a tool and prolong the service life of the tool, and is widely applied to the fields of bearing materials, cutting tools, mold materials and the like.

The invention discloses a roll workpiece surface grinding and polishing all-in-one machine which comprises a roll grinder, a polishing device, an axial driving device and a radial driving device. The polishing device is mounted on one side of the roll grinder; the axial driving device can drive the polishing device to move in the axial direction of a roll; the radial driving device can drive the polishing device to be fed in the radial direction of the roll; at least one polishing head is arranged on the polishing device; the polishing head can make contact with the surface of the roll on the roll grinder. According to the roll workpiece surface grinding and polishing all-in-one machine, the roll is ground and polished through the roll grinder, the roll can be lifted and polished at a time, and disassembling, secondary lifting and secondary positioning of the roll are avoided; positioning errors are lowered, the surface machining precision is improved, the machining efficiency is improved, and the labor intensity of workers is lowered. Compared with original polishing equipment, the polishing device is simple in structure, equipment cost is greatly lowered, equipment energy consumption is lowered, the space occupied by the equipment is reduced, and the roll machining cost is lowered.

The invention discloses an environment-friendly waterborne cutting fluid. The cutting fluid is prepared from, by mass, 5-15 parts of sodium dodecyl sulfate, 11-20 parts of barium petroleum sulfonate, 17-23 parts of anti-wear reagent at extreme pressure, 6-9 parts of tween, 6-10 parts of triethanolamine, 3-5 parts of fungicide, 30-45 parts of water, 9-12 parts of sodium molybdate, 0.3-1 part of coconut oil, 0.5-0.8 part of organic boron, 1-3 parts of sodium cumenesulfonate, 0.2-0.6 part of mercaptopropyl trimethoxy silane and 0.5-1.5 parts of laurylene succinic acid diethanolamide. The invention further discloses a preparation method of the environment-friendly waterborne cutting fluid. The cutting fluid has the cooling property, lubricating property and anti-rusting property and is capable of preventing corrosion and easy to dilute, the problems that a traditional soap-based emulsifying liquid is prone to smelliness in summer, difficult to dilute in winter and poor in anti-rusting effect are avoided, and the cutting fluid has no bad influence on lathe paint and is suitable for cutting and grinding machining of ferrous metal.

The invention provides a dressing control system and a dressing control method for a grinding wheel. The system comprises a wafer bearing platform mechanism, a main shaft grinding mechanism, an oilstone dressing mechanism, a main shaft rotating driving mechanism, a main shaft feeding driving mechanism, a wafer bearing platform rotating driving mechanism, an oilstone rotating driving mechanism, an oilstone feeding driving mechanism and a control module; the control module is connected with each of the oilstone rotating driving mechanism, the oilstone feeding driving mechanism, the main shaft rotating driving mechanism, the main shaft feeding driving mechanism and the wafer bearing platform rotating driving mechanism, wherein when the main shaft grinding mechanism moves to a first preset position relative to the wafer bearing platform mechanism, and the oilstone dressing mechanism moves to a second preset position relative to the main shaft grinding mechanism, the surface of a main shaft grinding is in contact with each of the surface of oilstone and the surface of the wafer bearing platform. According to the dressing control system and the dressing control method for the grinding wheel, the purposes of grinding a substrate material and dressing the sand wheel simultaneously can be achieved; the removal amount of the substrate material is increased; the machining efficiency and the surface machining precision of the substrate material are improved; meanwhile, the grinding capacity of the sand wheel is ensured.

The invention discloses a polyaniline cutting fluid. The polyaniline cutting fluid is prepared from, by mass, 12-30 parts of water soluble polyaniline, 22-42 parts of polyacrylamide, 5-9 parts of polyether polyol, 18-33 parts of triethanolamine, 11-18 parts of di-n-butyl phosphite, 5-13 parts of sodium molybdate, 17-24 parts of petroleum barium sulfonate, 7-16 parts of boracic acid, 10-25 parts of emulsified silicone oil and 33-48 parts of water. The invention further discloses a preparation method of the polyaniline cutting fluid. The product not only has good anti-corrosion and mildew-preventing properties, also has good lubricity and extreme pressure resistance and meanwhile is safe, environmentally friendly and free of environmental pollution.

The invention discloses a punch forming connecting part capable of achieving biaxial connection. The connecting part comprises a bottom plate, first shaft frames, second shaft frames and groove openings. The bottom plate is rectangular metal thin wall plate, the multiple first shaft frames are punched on one side of the bottom plate upwards, the second shaft frames are punched on the other side ofthe bottom plate upwards, groove openings are punched between two adjacent first shaft frames and second shaft frames, each first shaft frame is composed of a first straight line segment and a secondbending segment, the first straight line segments are in straight line shapes, the first straight line segments and the bottom plate are located on the same plane, the first bending segments are arc,the first bending segments are bent towards the bottom plate, the second shaft frames and the first shaft frames are the same in structure, each second shaft frame is composed of a second straight line segment and a second bending segment, the second bending segments and the first bending segments are opposite in bending direction, multiple rows of grooves are punched in the top face of the bottom plate, two adjacent rows of grooves are staggered, and the distances between two adjacent grooves in the same row are same. Production efficiency can be improved, raw materials are saved, and the strength and surface machining precision can be improved.

The invention discloses a semi-solid machining process for an automobile hub. The semi-solid machining process is characterized by comprising the following steps: selecting an aluminum alloy as a raw material for the automobile hub; adopting semi-solid forging preparation, that is, mainly conducting compressive deformation on a blank to be heated into a semi-solid state in a forging die, so as to obtain a product with a required shape and required properties. A novel automobile hub prepared according to the semi-solid machining process is high in specific strength. The semi-solid machining process has the characteristics that the aluminum alloy is high in corrosion resistance and malleability, and the novel automobile hub can be made of the aluminum alloy with high specific strength; compared with a casting, the aluminum alloy automobile hub manufactured by utilizing a semi-solid machining technology is low in porosity degree, fine in structure, higher in strength, accuracy of part sizes, and surface machining precision, and lower in cost.

The invention relates to the technical field of numerical control machine tools, in particular to a machining electric spindle and a numerical control machine tool. The machining electric spindle comprises a main shaft, a stator and rotor excitation winding, a fixing support, an induction coil and a controller, and the main shaft is of a hollow structure; the stator and rotor excitation winding is arranged outside the main shaft in a surrounding manner and is used for driving the main shaft to rotate around the axis of the main shaft; the first end of the fixing support is connected with the inner wall of the main shaft, and the second end of the fixing support is suspended in the main shaft; the induction coil is arranged at the second end of the fixed bracket; and the controller is in communication connection with the induction coil and the stator and rotor excitation winding, and can control the stator and rotor excitation winding to adjust the rotating speed when the current generated in the induction coil is greater than a preset value. The induction coil is arranged in the main shaft, is not influenced by the external environment, is high in precision and long in service life, and the controller directly controls the stator and rotor excitation winding to finely adjust the rotating speed of the main shaft when generating current in the induction coil, so that the efficiency is greatly improved, and complicated wiring is not needed.

The invention discloses a combined pneumatic machining fixture suitable for various shaft sleeves. The shaft sleeves are double-hole shaft sleeves of a gear oil pump. The combined pneumatic machiningfixture comprises a top panel, expanding sleeves arranged on the top panel, a pull rod which is arranged internally, a tensioning cylinder arranged at the lower end of the top panel, a guide plate which is positioned between the tensioning cylinder and the top panel and is connected with the cylinder rod and the pull rod of the tensioning cylinder, and a guide column which passes through a cylindrical through hole in the guide plate and is connected with the top panel, wherein the cylinder body of the tensioning cylinder is connected with the top panel, the expanding sleeves with various sizesare installed on the top panel for clamping various types of shaft sleeves. According to the fixture, expanding sleeves with different sizes are installed on the top panel to be suitable for combinedmachining of various shaft sleeves; and through a pressing plate, the shaft sleeves can undergo positioned adjustment before clamping is completed, so that the appearance and surface machining precision of the shaft sleeves is high.

The invention discloses multi-axis linkage type water pressure intelligent adjusting type deburring equipment which comprises a supporting device, a power device, a circulating device, an adjusting device, a grinding device and an industrial camera, the supporting device is connected with the power device, the power device is in transmission connection with the circulating device, the circulating device is connected with the supporting device, and the adjusting device is in transmission connection with the grinding device. The adjusting device is communicated with the circulating device through a pipeline, the grinding device is in transmission connection with the power device, the industrial camera is fixedly connected with the supporting device, the supporting device comprises a supporting plate, a vertical plate, a first cross arm and a second cross arm, an objective table is arranged on the supporting plate, the industrial camera faces the objective table, and the lower end of the vertical plate is fixedly connected with the supporting plate. The first cross arm is slidably connected with the vertical plate, the second cross arm is movably connected with the first cross arm, the first cross arm, the second cross arm and the vertical plate are vertically arranged, when a large workpiece is polished, step-by-step polishing is carried out, cooling water is circulated through the circulating device, and waste of water resources is reduced.

The invention relates to a quenching device. The quenching device comprises a first guide rail part, a second guide rail part, a control box, a quenching die and a product table, wherein the second guide rail part is arranged on the first guide rail part, the control box is arranged on the second guide rail part, the first guide rail part is arranged so that the second guide rail part and the control box move along an extension direction of the first guide rail part, and the second guide rail part is arranged so that the control box moves along an extension direction of the second guide rail part; one end of the control box extends to a space above the product table, and is connected with the quenching die; and the quenching die quenches a workpiece arranged on the product table. The quenching device provided by the invention is capable of improving machining accuracy and increasing working efficiency.