238 results about "Diamond knife" patented technology

The invention belongs to ultra precise machining, complex parts fabrication technique field, relates to a ultra precise turning process with diamond knife tool anterior angle compensating for three axis diamond ultra precise machine tool. The method adapts above tool orthogonal rake compensating to search lathe coordinate of knife for many coordinate on the mould, and generates machining paths according to certain paths to realize the machining for surface model tool orthogonal rake compensating. In the paths generation method, the knife with anterior angle is compensated on the anterior angle to realize tool bit accurate control in case of machining brittleness material and ultra precise turning with high shape accuracy.

The invention belongs to the technical field relevant to ultra-precision machining, and discloses multi-field-assisted diamond cutting equipment. The diamond cutting equipment comprises a laser auxiliary device, an ultrasonic vibration auxiliary device, a magnetic field auxiliary device and a machining auxiliary device, and the magnetic field auxiliary device and the ultrasonic vibration auxiliarydevice are arranged on the machining auxiliary device and oppositely arranged; the laser auxiliary device and the ultrasonic vibration auxiliary device are oppositely arranged; the machining auxiliary device is further used for bearing workpieces; in the machining process, the magnetic field auxiliary device generates a magnetic field, and the workpieces are located in the magnetic field; and thelaser auxiliary device emits a laser beam so as to conduct preheating softening or degrading on the workpieces, the ultrasonic vibration auxiliary device generates two-dimensional elliptic vibrationat a tool nose of a diamond cutting tool, and meanwhile the laser beam is focused on the tool nose of the diamond cutting tool. The machining efficiency and quality are improved, the life of the cutting tool is prolonged, and flexibility is good.

The invention provides a diamond tool bit edge and corner grinding device, belongs to the technical field of machinery and solves the problem of low production efficiency due to the fact that presently, diamond tool bit edges and corners are grinded through the general-purpose machine tool. The diamond tool bit edge and corner grinding device comprises a machine frame and a clamp used for clamping a diamond tool bit and provided with an outward outer side surface. A grinding mechanism provided with a flat grinding wheel is arranged on the machine frame. A feeding mechanism capable of driving the clamp to move and leading the outer side surface of the diamond tool bit and the grinding surface of the flat grinding wheel to be tangent is further arranged on the machine frame, and the tangency point of the outer side surface of the diamond tool bit and the grinding surface of the flat grinding wheel is located on an edge and corner line. The diamond tool bit edge and corner grinding device has the advantages of being compact in arrangement, reasonable in design and simple in structure, being capable of grinding the edges and corners of the diamond tool bit flat and smoothly, having a high qualified rate, being capable of feeding and conveying materials automatically and accordingly being high in production efficiency.

The invention discloses a diamond tool bit, a preparation method of the diamond tool bit, a cold pressing mold for a diamond tool bit, and a diamond saw blade. The diamond tool bit comprises a transition layer which does not contain diamonds and a working layer containing diamonds. A concave-convex structure is arranged at the joint of the transition layer and the working layer. According to the diamond tool bit, the transition layer which does not contain diamonds and the working layer containing diamonds are engaged mutually through the concave-convex structure, the bonding area of the transition layer and the working layer is increased, and the bonding strength between the transition layer and the working layer is high; and meanwhile, according to the diamond tool bit of the structure, the transition layer or the working layer can be independently formed at first during cold press molding, the situation that the transition layer and a substrate welding face include diamonds due to the fact that transition layer powder and working layer powder are simultaneously put into a mold cavity is avoided, and the effect that the transition layer does not contain diamonds is ensured, so that guarantees are provided for subsequent welding quality on the basis that the bonding strength of the transition layer and the working layer is also considered.

The invention relates to a micro-vibration auxiliary cutting device and a method for a brittle material. The method partially comprises the following steps: 1, a preparation step; 2, an initial cutting step; 3, a slot-following vibration step; and 4, a completion step. Therefore, an initial kurf with a first depth on a workpiece on a workpiece fixing part is obtained through the cutting of an initial cutting part; and a vibration contact part moves along the initial kurf and simultaneously produces a slight amount of vibration which is perpendicular to the initial kurf and has a preset frequency, so that the first depth of the initial kurf is deepened to a second depth and the workpiece is further ruptured. Therefore, the cutting device simultaneously has the advantages of being applicable to harder and thicker workpieces to be cut, adopting a minor tungsten carbide or diamond knife flywheel, having a simple structure and low cost, and the like.

The invention discloses a diamond cutting circular saw blade. The diamond cutting circular saw blade comprises a base body, a diamond knife head and a central hole, wherein saw teeth which are uniformly distributed along the external circumference of the base body are fixed on the base body, the diamond knife head is welded on the saw teeth, the thickness of the diamond knife head is greater than that of the base body, a chip groove is formed in the bottom of a gap between every two saw teeth on the base body, and at least one debris baffle is fixed on each of lateral surfaces of two sides of the base body; abrasive layers are fixed on both the lateral surfaces of the two sides of the base body. The diamond cutting circular saw blade has the advantages that a cutting section is finely ground by the abrasive layers when the diamond knife head of the saw blade cuts materials to facilitate higher flatness of the cutting section while ensuring the cutting speed, thereby reducing production procedures and lowering the cost; the debris baffles crush residual materials generated while cutting again, and the crushed residual materials are discharged from the chip grooves to enhance the crushing and discharging efficiency of the residual materials to prevent the residual materials from being collided or wound on a transmission shaft of cutting equipment, so that the cutting equipment is easy to clean and is ensured to be normally operated.

The invention relates to a preparation method of a complex CVD (chemical vapor deposition) diamond cutter. The preparation method is characterized by comprising seven steps, namely (1) preparation of a base material; (2) mold processing; (3) pretreatment of a mold cavity; (4) deposition; (5) mold stripping; (6) destressing; and (7) welding. According to the preparation method disclosed by the invention, a material which is easy to process is taken as a mold, and a CVD diamond thick film blade in a complex shape is deposited in the mold cavity, so that forming, grinding and polishing processing of a complex geometric surface of a cutting part of the diamond cutter can be avoided. According to the preparation method disclosed by the invention, the forming of the CVD diamond thick film blade with high precision and complex shape can be realized, and the complex CVD diamond cutter can be obtained by vacuum brazing. The method has the advantages of simplicity, easiness in realization and capability of greatly reducing the manufacturing cost of the complex diamond thick film cutter.

The invention discloses a dry-grinding diamond grinding wheel and belongs to the technical field of grinding tools for building materials. The dry-grinding diamond grinding wheel comprises a grinding wheel base body and multiple diamond tool bits arranged on the grinding wheel base body; the grinding wheel base body is disk-shaped; the outer edge of the grinding wheel base body is an annular plane; the multiple diamond tool bits are uniformly distributed on the annular plane of the grinding wheel base body; each diamond tool bit adopts a round cake-shaped structure with a square through hole in the middle; annular heat dissipation holes are formed in the annular plane of the grinding wheel base body and correspond to the square through holes in the diamond tool bits in position. According to the invention, through special design of the cutter bits and the base body, the grinding wheel can remove scraps and dissipate heat more effectively, the problem of continuous working in the environment without cooling water is solved and work troubles of constructors under the environmental conditions of strict cooling conditions are eliminated.

The invention relates to a frequency converter based on a ridge-type lithium niobate monocrystal thin-film waveguide integrated periodic domain reversal structure, and preparation thereof. The preparation comprises the following steps: preparing a periodic structure with domain reversal region duty ratio as 0.5 on a lithium niobate monocrystal thin-film surface by using the same laser processing parameter; and then preparing ridge-type waveguide on the lithium niobate monocrystal thin-film by applying femtosecond laser direct writing or precise diamond knife-cutting technology, and integratingon a pre-processed periodic structure; and then performing polishing treatment on two X end surfaces of the LNOI, cleaning and obtaining polished surfaces; and then integrating a semiconductor laserand an optical fiber coupling system, the lithium niobate monocrystal thin-film waveguide with the periodic domain reversal structure and an optical filter, thereby realizing the frequency conversionfunction of the laser with specific wavelength. The frequency converter disclosed by the invention has the features of being high in conversion efficiency, good in beam quality and long in life; and the product is mainly applied to the optical fiber communication, the electronics device preparation, the information storage, the infrared detection and like fields.

The invention provides a diamond circular saw blade. The diamond circular saw blade is characterized in that the diamond circular saw blade comprises, by weight, 40-45% of metallic bonding agents, 30-32% of FC30 alloyed powder, 20-25% of copper and 6-8% of tin. A machining method for the diamond circular saw blade comprises the following steps of (1) working layer burdening, (2) pelleting, (3) cold pressing, (4) hot pressed sintering, (5) exposedness of a cutting edge, (6) paint spraying, and (7) detection and storage in a warehouse. According to the machining method for the diamond circular saw blade, a diamond bit tool and a steel base body are integrally formed through cold pressing, and welding is not required. Bonding force between part of the tool bit and the base body is strong, the phenomenon of tooth falling is not prone to occurring, a saw blade base body is assembled into a cold pressing forming steel mould, and forming is achieved through two-time feeding and one-time integral cold pressing. The phenomenon of piece burning is avoided, so that the saw blade cutting efficiency is stably and lastingly kept.

The invention relates to a superhard material cutting tool and a preparation method thereof, which belongs to the technical field of superhard material. The superhard material cutting tool comprises a steel matrix and a cutting tool bit. The cutting tool bit consists of a polycrystalline diamond compact (1) and a diamond tool bit (2); 1 to 12 inclined cylindrical tanks used for welding the diamond compact are distributed on the outer circle surface of the steel matrix, and the center line of the inclined cylindrical tank forms a cutting angle with the cutting face; the diamond tool bit is welded on the surface of the steel matrix. The polycrystalline diamond compact is combined by PCD and cemented carbide matrix and is sintered from the mixture of diamond and the metal powder after being compacted; the structure thereof is in the shape of cylinder, ladder or squareness; the fringe area of the clad compact is the cutting blade. The superhard material cutting tool solves the materials hard to be processed in the cutting field, and ensures the surface of the machined part free of burr, nick, spray and chatter mark; the cutting and grinding combination not only improves the cutting speed, but also ensures the cutting quality.

The invention provides a diamond tool bit positioning seat and a welding machine for a diamond cutting tool and belongs to the technical field of operation. By the adoption of the diamond tool bit positioning seat and the welding machine for the diamond cutting tool, the problem that an existing tool bit positioning seat is poor in universality is solved. The diamond tool bit positioning seat comprises a base, a synchronous pneumatic clamp and a strip-shaped tool bit supporting plate. The synchronous pneumatic clamp is located under the tool bit supporting plate. The tool bit supporting plate is fixedly connected with the base. The synchronous pneumatic clamp is provided with a cylinder body and two sliding heads. The cylinder body is fixedly connected with the base. A chuck is fixedly connected to each sliding head. The tool bit supporting plate is located between the two chucks. Tool bit clamping lips located above the tool bit supporting plate are arranged on the opposite sides of the two chucks correspondingly. A tool bit end face abutting device is further arranged on the tool bit supporting plate. The positions of central planes of diamond tool bits clamped by the diamond tool bit positioning base are the same, namely after the diamond tool bits with different thicknesses are positioned through the diamond tool bit positioning base, and the positions, relative to the tool bit supporting plate, of the central planes of the diamond tool bits are the same.

The invention relates to a diamond saw blade and belongs to the technical field of diamond tools. The diamond saw blade comprises a round metal matrix and a plurality of diamond tool bits arranged onthe outer end surface of the round metal matrix, wherein chip spaces are formed between adjacent diamond tool bits; an annular protecting coating is formed on the surface, close to the diamond tool bits, of the round metal matrix; the annular protecting coating is composed of a metal intermediate layer in contact with the round metal matrix and a hard alloy layer arranged on the metal intermediatelayer. The annular metal matrix of the diamond saw blade is provided with the annular wear-resistant protecting coating, so that erosion of cutting chip to the metal matrix is prevented effectively,and the heat dissipating property of the metal matrix is improved and vibration between the metal matrix and the diamond tool bits is reduced, and therefore, the service life of the diamond saw bladeis prolonged and the cutting stability of the diamond saw blade is improved favorably.

The invention relates to processing equipment for glass curtain walls, especially to an apparatus for circle cutting of a glass curtain wall. The apparatus for circle cutting of the glass curtain wallin the invention realizes mechanical driving of a diamond knife for rotary cutting, so a perfect circle shape is cut and people are protected from hand injury since holding of the diamond knife withthe hand for cutting is not needed. The apparatus for circle cutting comprises a base plate, a first supporting rod, a first guide sleeve, an installation plate, a first screw, a motor, a first gear,a bearing pedestal, a second gear, a rotating shaft, a connecting rod, etc. The first supporting rod is connected with the right part of the upper side of the base plate. The apparatus allows the diamond knife to cut a perfect circle shape by mechanically driving the diamond knife to carry out rotary cutting and frees people from hand-holding of the diamond knife so as to protect people from handinjury during cutting with the diamond knife; and the motor drives diamond to carry out rotary cutting so as to cut a perfect circle.

The invention discloses a high-speed friction testing method of a diamond knife pre-maintenance nonferrous metal friction pair and belongs to the field of tribological testing and precise and ultra-precise machining. The high-speed friction testing method includes: fixing a nonferrous metal friction disc on an electric spindle, and performing online dynamic balancing on the friction disc; adopting a diamond knife to maintain the friction disc to reach requirements needed for testing end face jumping and coarseness; clamping a pair friction tool on a clamp connected with a force feedback device, conducting friction testing like ball-disc testing and pin-disc testing, enabling the friction disc to rotate at a specified rotating speed, enabling the pair friction tool to contact with the friction disc, maintaining pressure between the pair friction tool and the friction disc at a testing set value for testing until setting time is up, and collecting physical parameters like friction force and sound emitting signal in the process by a measuring system. By using the high-speed friction testing method, high-speed friction testing can be realized.

The invention aims to provide a method for designing a diamond tool which is applied to diamond ultra-precision turning Fresnel lenses. When the diamond tool is designed, main parameter needing to be designed are a deflection angle theta, a tool nose angle phi, a tool nose arc radius Rl and a tool nose transition radius Rm. The principle of designing the deflection angle theta is to mainly ensure that interference can not occur when a step surface of an outermost zone is machined. The principle of designing the tool nose angle phi is to ensure that interference can not occur when a joint of a ball of the outermost zone and the step surface on the one hand, and to ensure the strength of a tool nose on the other hand. When the tool nose arc radius Rl and the tool nose transition radius Rm are designed, a main considered factor is that the tool nose arc radius can affect the diffraction efficiency of the Fresnel lenses. The designed diamond tool can realize the machining of the high-precision Fresnel lenses, eliminate principle errors in conventional machining and reduce the light energy loss of a Fresnel lens structure caused by the arc radius.

The sloping-type double-strip diamond saw machine is aslope arranged on a column by a large frame with enough intensity. Two pairs of light flywheels with the diameter of 1600mm-1610mm are arranged on the large frame, and two driving flywheels are connected together at the lower end of the large frame and rotate under the driving of the driving motor. Two driven flywheels at the upper end of the large frame are respectively and correspondingly arranged on the slideways with different tensioners. The thickness of boards is made by anti-slip circles with different thickness. Two welding edge of the diamond knife head is strip steel in form of wave with the width of 200mm and the thickness of 1.4mm, the strip steel is welted into a circle and arranged on the two flywheels. The knife head is welted on the wave-shaped chimb by laser. When the host machine rotates, the knife head and the saw blades do high-speed rotation movement from top to down in the eight roller-type controllers. The cooling water pipe is located at the two sides of the top end of the saw blade and sprinkles water over the incision line of the saw blade. Under the driving of the frequency conversion motor, the flat vehicle filled with crude materials facilitates the crude materials to pass through the edge of the crude materials at different speeds and the demanded thickness under the control of the numerical control stowing tool. The working form that the saw blade B is at the front and the saw blade C is at the rear is formed gradually, and the two boards after being cut fall on the transportation bracket wheel which is horizontal to the bottom of the crude materials. When the flat vehicle returns to the stop point, the two boards on the bracket wheel are rotated by a plurality of bracket wheels simultaneously in the guard to the storage point, and the numerical control stowing tool carries out a second circulation to the thickness designed by pulsion of the crude materials.

The invention discloses a diamond coring bit and a laser welding preparation process thereof, and belongs to the technical field of diamond coring bits. The diamond coring bit is formed by connectinga metal base body and diamond tool bits, and the tool bits are evenly distributed on the end face of the metal base body. A transition layer is arranged between the metal base body and the diamond tool bit, a plurality of strip-shaped grooves are evenly formed in the side surface of the diamond tool bit, and the side surface of the wavy tooth structure is formed. And the metal base body and the tool bit are connected into a whole through a laser welding process. Through the special design of the shape of the tool bit, the high-speed coring drill bit can play a very good water cooling role during large-depth drilling, and meanwhile, the continuous wave tooth structure on the inner wall of the tool bit is more beneficial to timely discharging of smashed silt, so that very good cutting performance is kept. By optimizing the components of the tool bits and the transition layer and optimizing technological parameters such as laser power and welding speed, a welding seam with excellent performance is obtained.

The invention discloses a method for preparing a concave mirror on an optical waveguide. The method includes following steps: step 1, cutting the optical waveguide to form a v-shaped groove by employing a v-shaped diamond knife, wherein one plane of the v-shaped groove is a 45-degree inclined plane, and the other plane is a vertical plane; step 2, etching a cube groove by employing one vertical plane, close to the v-shaped groove, of an excimer laser as one side, wherein the width of the cube groove is 2/3 or once of the depth of the v-shaped groove, and the depth of the cube groove and the depth of the v-shaped groove are the same; step 3, placing a plate in an inclined manner to enable the inclined plane of the v-shaped groove to be horizontal, and performing hot working on the inclinedplane of the v-shaped groove by employing a carbon dioxide laser to enable the inclined plane to be ablated to form a recessed surface; and step 4, plating a high-reflection film on the recessed surface to form the concave mirror. According to the method, based on the fact that the diamond knife fabricates the 45-degree inclined plane, hot working is further performed by the inclined plane by employing the carbon dioxide laser, a processing process has a thermal annealing effect due to the mechanism of hot working, and the reflective concave mirror with low roughness can be obtained.

The invention discloses a finish-milling tool and method used for hub surface machining. The finish-milling tool comprises a finish-milling tool body provided with a cutter body (1) and a diamond edge body, wherein the diamond edge body is arranged on a cutting end face part of the cutter body (1) and provided with a chip discharging channel. Extrusion machining is conducted on the hub surface through the diamond edge body, and a bright surface is formed on the hub surface; through the heat dissipation effect of the chip discharging channel of the diamond edge body, the situation that cutting chips adhere to the diamond edge body due to high temperature is prevented, and no cutting liquid is needed, so that the machining cost is reduced, and the safety performance is improved.

The invention provides a metal mirror processing device and process. The metal mirror processing device comprises a machine tool body and a processing room arranged inside the machine tool body, and a metal mirror processing mechanism is arranged in the processing room. The metal mirror processing mechanism particularly comprises a vacuum fixture, a cutting device and a cutting fluid spraying device, wherein the vacuum fixture is used for fixing a metal workpiece; the cutting device is used for conducting mirror processing on the metal workpiece, arranged over the vacuum fixture, and connected with a main shaft of a machine tool; and the cutting fluid spraying device is used for cooling and lubricating the surface of the metal workpiece in the cutting process. According to the metal mirror processing device and the process, diamond knife grains arranged on a blade of the cutting device can be used for grinding the surface of the metal workpiece; through cooperation of stable adsorption of the vacuum fixture and the cooling and lubrication of the cutting fluid spraying device, a mirror effect of the metal workpiece can be achieved in one step through cutting processing, mirror processing procedures of the surface of the mental workpiece can be simplified, and the production efficiency can be improved.

The invention discloses an automatic die dismantling and mounting method suitable for a diamond knife head die and relates to the field of mechanical automation. A production line mainly comprises anintermittent rotary table device, a die dismantling device, a screening device, a press cake sorting device, a die main body transferring device and a die main body changing device. According to the automatic die dismantling and mounting method, the intermittent rotary table device, the die dismantling device and the screening device are adopted to automatically dismantle a die frame, a die body,a pressing head and a cold green compact; and the die main body transferring device and/or the die main body changing device is utilized to re-mount the die body or the other die body into the die frame. The automatic die dismantling and mounting method can automatically dismantle the die, separate the cold green compact, and mount the die body to the die frame. The production line has the advantages of being compact in structure, continuous in action, and high in degree of automation.

The invention discloses a method and device for preparing a multi-scale functional microstructure on a high-hardness surface. It is very necessary to develop an efficient and convenient multi-scale functional microstructure preparation method and device. The method comprises the steps that a single-point diamond cutter and a multi-edge diamond cutter are manufactured; then, a central inverted circular truncated cone pit microstructure array or a V-shaped groove microstructure array is imprinted on the to-be-machined surface of the to-be-machined workpiece; and finally, preparing a micron or submicron functional microstructure on the central inverted circular truncated cone pit microstructure array or the V-shaped groove microstructure array. The device comprises a four-degree-of-freedom positioning mechanism, a clamp, a vibration exciter, a single-point diamond cutter and a multi-edge diamond cutter. The multi-scale functional microstructure is machined on the high-hardness surface, the hardness, strength, abrasion resistance and precision of the high-hardness surface can be improved, and the method has very important significance in development of the high-hardness machining industry.

The invention provides a silencing diamond saw blade which comprises a main base body, a diamond tool head and a sub base body. The diamond tool head is fixed on the outer edge of the main base body which is of an annular structure, the sub base body is detachably fixed in a hole of the main base body, and a shaft hole is formed in the middle of the sub base body. The silencing diamond saw blade is characterized in that a silencing line is arranged on the sub base body. The silencing diamond saw blade can avoid waste, and is low in noise, high in cutting precision, simple in structure and convenient to operate.