122 results about "Diamond knife" patented technology

The invention discloses a manufacturing method of a grinding wheel for a high-uniformity and easy-to-sharpen grinding single crystal diamond cutter, and belongs to the field of superhard materials and products in machining, the manufacturing method mainly comprises the steps of wet mixing, tape casting, laser cutting, lamination, matrix surface treatment, integrated sintering, size processing, sharpening and the like, and finally the grinding wheel with the total thickness of an abrasive layer being 7-15 mm is formed. The grinding wheel layer is formed by intersecting and laminating a piece a and a piece b, the height of diamonds at the junction of the piece a and the piece b tends to be consistent, the diamond exposure height and smoothness are better compared with direct feeding sintering, meanwhile, the piece a can be designed to be of a porous structure through proper binder selection, and therefore the dressing efficiency is further improved, and the dressing effect is better. And higher processing quality and efficiency of the diamond cutter are indirectly improved.

The present invention proposes a diamond tool for dressing an internal meshing honing wheel, the diamond tool comprising an annular tool base and a diamond layer disposed on the front side of the tool base; the diamond layer is coaxially fixed to the tool base; and a trimming bevel tooth is provided on the outer periphery of the diamond layer so that the end face tooth edges of the trimming bevel tooth are used to dress the honing wheel. The diamond tool of the present invention is an external tooth helical gear structure. When meshing and dressing the honing wheel, material is removed from the honing wheel only by relying on the end face tooth edges of the trimming bevel tooth on the diamond layer. The trimming bevel tooth has a trimming tooth profile, which can achieve tooth profile modification of the honing wheel. At the same time, the movement of the honing machine tool drives the diamond tool to achieve tooth direction modification of the honing wheel tooth surface. Since the tooth surface of the trimming bevel tooth does not contact the tooth surface of the honing wheel, it is suitable for dressing honing wheels with different tooth direction modification requirements.

The utility model discloses a welding device for diamond blade production, which comprises a case, a first sliding seat connected to the case, a second sliding seat connected to the first sliding seat, a base plate fixed on the second sliding seat, a first positioning column connected to the center of the base plate, and an external spline arranged on the periphery of the first positioning column. A plurality of positioning mechanisms which are circumferentially distributed are arranged on the periphery of the chassis; a machine frame is connected to the machine box, a box body is connected to the machine frame through a lifting mechanism, a rotating column is rotationally connected to the bottom face of the box body, a driving mechanism for driving the rotating column to rotate is arranged in the box body, a U-shaped base is connected to the lower end of the rotating column, a second positioning column is connected to the bottom face of one end of the U-shaped base, and the circle center of the second positioning column is aligned with the circle center of the rotating column. A mounting frame is connected to the U-shaped base through a second left-right displacement mechanism, and a welding gun is mounted on the mounting frame. The rotating column is driven to rotate to drive the U-shaped base to rotate, so that the welding gun rotates with the second positioning column as the circle center, diamond cutter teeth are welded to a blade one by one, and the welding efficiency is greatly improved.

The application discloses a preparation method of a diamond tool bit, and the hot-pressing die of the diamond tool bit is aimed at a drill cutting tool bit and a sharp corner tool bit, the upper pressing head and the lower pressing head are respectively divided into two parts, so that the structure of the die pressing head group is simpler, and the manufacturing cost is lower; and the hot-pressing pressure can be provided according to the shrinkage ratio during hot-pressing sintering, and the use is more flexible; the top of the drilling end surface of the prepared diamond tool bit is formed into a triangular sharp top cutting edge, excellent self-sharpening and sharpness of the tool bit are maintained, wear resistance is high, and the service life is long; the size and shape error of the formed diamond tool bit are small, the precision is high, and the quality is good; the diamond drill bit can quickly cut into the drilled material, the drilling speed of the tool bit is improved, the drilling sharpness is improved, and the cutting stability and safety are ensured.

The invention discloses a large-size hole forming cutter based on a CVD diamond compact and a manufacturing method of the large-size hole forming cutter, and belongs to the field of diamond cutters. The large-size hole forming cutter based on the CVD diamond compact comprises a cutter body, and a first CVD diamond is arranged at the top end of the cutter body; a plurality of sets of second CVD diamonds and third CVD diamonds which are located on the two sides of the cutter body in pairs are arranged below the first CVD diamonds, the first CVD diamonds, the second CVD diamonds and the third CVD diamonds are all welded to the cutter body through hard alloy transition layers, and the cutter body is provided with an anti-chip groove. According to the large-size drilling tool based on the CVD diamond and the manufacturing method of the large-size drilling tool, the problems that an existing tool provided in the background technology is insufficient in abrasion resistance and low in interface bonding strength, and a large-size cutting edge is prone to layering are solved.

The invention discloses a laser in-situ ultrasonic vibration multi-tool auxiliary internal thread machining device and method, and belongs to the technical field of precise non-traditional machining. Laser emitted by a laser generator is emitted through a laser output head, is collimated by a collimating lens, then passes through a central through hole of an ultrasonic transducer and then is emitted into a first blind hole in the center of a tool holder; the collimated laser is divided into a plurality of light beams through a beam splitting lens and a reflecting lens in a first blind hole in the center of a tool handle, and the light beams are emitted into second blind holes in a plurality of threading tools through a laser emitting opening, are focused through a focusing lens arranged in the internal threading tool and are emitted out through a diamond tool nose of the internal threading tool; one-time machining forming is achieved, the machining time is shortened, the machining efficiency is greatly improved, the quality of the machined surface is improved, the machining precision is guaranteed, the laser pointing precision and stability are guaranteed, and tool abrasion is reduced.

The invention discloses a cutting force measuring method for atomic precision machining, which belongs to the field of atomic precision machining and comprises the following steps of: 1, determining the elastic rigidity of an atomic force microscope probe; step 2, preprocessing an atomic force microscope probe; step 3, preparing a cut sample; fourthly, the atomic-scale sharp diamond cutter is prepared; step 5, installing the sheet sample on an X-Nano multi-degree-of-freedom in-situ transmission electron microscope sample rod; 6, measuring the cutting force by using an X-Nano multi-degree-of-freedom nano control technology; and 7, calculating the displacement of the diamond cutter and the sheet sample in the x direction under different frames, and drawing a relation curve of the cutting stroke and the cutting force. According to the invention, the cutting force measurement of atomic precision processing is realized under the TEM based on the AFM probe, the cutting force measurement range can be flexibly adjusted according to the amplification factor of the TEM and the elastic rigidity of the AFM probe, and the method is suitable for the cutting force measurement of various materials.

The utility model provides a surface quality detection device applied to diamond cutter alloy matrix, which comprises a workbench, a support rod and a track plate, the left side of the top of the workbench is fixedly provided with the support rod, the top of the support rod is fixedly connected with the track plate, the track plate is internally provided with a fixing assembly, and the fixing assembly is fixedly connected with the support rod. The top of the workbench is provided with a detection mechanism, and the right side of the workbench is provided with a rotating mechanism. The gear ring can be driven to rotate at the top of the workbench through the self-locking motor and the gear, the gear ring can drive the fixed ring at the top of the gear ring to rotate while rotating, and the detection ring is fixed at the top of the fixed ring and used for driving the detection ring to rotate at the top of the workbench. Therefore, the cutting edge of the diamond cutter and the detection ring are automatically and repeatedly rubbed in a short time, then the loss degree of the cutting edge is observed, the detection time is shortened, and the detection efficiency of the diamond cutter is improved.

The application discloses a kind of diamond tool bit die-casting mould, belong to diamond blade class manufacturing equipment technical field, this kind of diamond tool bit die-casting mould, including outer mould, first inner mould is slidably connected between the two short ends of the inner side of outer mould, the third inner mould is slidably connected with two long ends of the inner side of outer mould respectively, the second inner mould is engagedly connected between two third inner mould and first inner mould, auxiliary clamping assembly is respectively installed in the middle part of four sides of the outer mould outside.The application is modularized splicing inner mould by adopting the overall structure, so that each part of the inner mould can be flexibly and quickly combined, which facilitates the maintenance and replacement of the mold, reduces the production cost, improves the production efficiency, and the modularized splicing inner mould can provide uniform and stable extrusion force during die casting process, ensuring that the diamond particles and metal powder mixture are fully filled and tightly combined, so as to obtain a diamond tool bit with high performance.

This invention relates to the field of gear machining technology, specifically to a design method for a cylindrical diamond dressing tool for dressing internal meshing honing wheels. The method includes: determining the design parameters of the cylindrical diamond dressing tool; determining the working clearance angle; calculating the installation parameters; obtaining the cutting edge on the tool end face from the calculated offset conjugate surface; and using 3D software to axially helically stretch the cutting edge on the end face to obtain a 3D solid model of the tool. This design method can produce a cylindrical diamond dressing tool with a structural clearance angle, which not only simplifies the tool manufacturing and inspection process but also improves the strength and durability of the diamond cutting edge.

The utility model relates to the technical field of glass tube processing, and provides a cutting device for glass tube processing, which comprises a table body, a rectangular through groove is formed in the center of the table body, an annular plate is fixedly embedded in the rectangular through groove, an annular T-shaped groove is formed in the inner side of the annular plate, a gear ring is movably embedded in the annular T-shaped groove, and the annular T-shaped groove is fixedly embedded in the table body. The T-shaped ring plate is fixedly mounted in the gear ring; firstly, an electric telescopic rod is started to drive a diamond blade of a U-shaped plate to be adjusted, so that the diamond blade is attached to the outer surface of a glass tube, a driving motor is started to drive a gear to rotate through a connecting shaft, the gear drives a meshed gear ring to rotate in an annular T-shaped groove, and the gear ring drives a T-shaped ring plate to rotate; the electric telescopic rod is mounted on the inner side of the T-shaped annular plate through the mounting plate, so that the electric telescopic rod drives the diamond blade to rotate to annularly cut the glass tube, the cutting efficiency is improved, and chippings can be reduced by adopting the diamond blade for cutting.

A diamond tool bit includes a steel weld pad configured to be coupled with a drive link of a cutting chain. The diamond tool bit further comprises a diamond layer combined with the steel welding pad, wherein the diamond layer extends at the edge part of the steel welding pad along the height of the steel welding pad. Other embodiments are also disclosed and claimed.

1. Name of the designed product: cutter head (ancient coin shape). 2. Use of the designed product: diamond cutter head for punch drill. 3. Design points of the designed product: the shape of the product as a whole. 4. Picture or photo best indicating the design points: perspective view.

According to the stable diamond tool bit saw blade provided by the embodiment of the invention, the fastening bolt sequentially penetrates through the cover plate and the diamond blade, and the end part of the fastening bolt is screwed into the base body, so that the diamond blade can be fixed in the insertion hole of the base body through the cover plate. Meanwhile, the arc-shaped connectors with the connecting rods are inserted into the fastening bolts in the radial direction of the base body, and the driving shaft of the driving device is inserted into the shaft holes of the base body, so that the driving shaft can abut against the arc-shaped connectors in the shaft holes. By the adoption of the structural design, the arc-shaped connector can be fixed into the shaft hole through the driving shaft so as to ensure that the connecting rod fixedly connected with the arc-shaped connector can be inserted into the fastening bolt, and therefore the problem that the fastening bolt loosens due to vibration in the long-term cutting process, and then a diamond blade falls off can be effectively solved.

The present application relates to a kind of preparation methods of cutting tool, specifically to a kind of polycrystalline diamond-hard alloy integral spiral cutting tool additive manufacturing process.The present application is shaped by additive manufacturing respectively with grooved hard alloy substrate green body, matching groove type diamond PCD blade green body, after hard alloy substrate green body is debound presintering, with the debound diamond blade blank is combined after using interference fit way, high temperature and high pressure treatment is carried out, and spiral structure PCD cutting tool bit is obtained;The pressure of high temperature and high pressure treatment is 5~10GPa, and the temperature is 1400~1700 ℃.The present application not only avoids a series of problems such as thermal damage caused by bit welding, poor heat resistance, etc., but also obtains hard alloy-polycrystalline diamond composite with high interface bonding strength.The present application process is simple and controllable, and the performance of the obtained product is excellent, and it is easy to industrialize application.

The invention relates to the field of mechanical engineering, and discloses a processing design method based on a diamond cutter for optical fiber cutting. The method comprises the following steps: acquiring three-dimensional shapes and optical performance indexes of optical fiber end surfaces cut by a diamond cutter with different cutting edge parameters; microcosmic geometrical characteristics such as cutting edge curvature gradient, crystal orientation, collapse density and surface power spectrum density are extracted; constructing a physical interpretable neural network model embedded with fracture mechanics and optical waveguide constraint; reversely solving a cutting edge parameter set meeting the target optical performance; and an ultra-precision machining path is generated, and the single-point diamond lathe is controlled to machine the diamond cutter in a customized mode. Through closed-loop optimization and online fine tuning, the end face reflectivity stability and mode field consistency are improved, the return loss standard deviation is reduced, and the high-speed optical communication requirement is met.

The present application relates to a kind of plate type ballastless track bed expansion joint cutting and cleaning integrated system, including main frame structure;Cutting component;Walking component;Adjustable spring limiting component and dust removal component.The present application is by being set along the main frame crossbeam of bed width direction arrangement, and setting movable slide on the main frame crossbeam, and setting movable seat on the front end surface of slide, and setting cutting assembly on the front end surface of movable seat, the rotation of diamond cutter head can realize the cutting of bed expansion joint, improve the flatness of diamond cutter head to bed expansion joint cutting, by controlling diamond cutter head longitudinal stroke and the lateral stroke of slide guarantee the width and depth of grooving, and dust removal component is synchronous with cutting work, realize the cleaning work of dust at expansion joint, without subsequent separate cleaning, improve construction efficiency.

The present application relates to a kind of complex optical curved surface quick tool and in situ laser synchronous servo cutting device, belong to the technical field of ultra-precision cutting of difficult-to-cut materials and its complex optical curved surface. Including installation support and height adjustment module, quick tool servo cutting and laser installation module, synchronous laser servo irradiation module and optical path adjustment and control module. Advantage is according to complex curved surface geometry characteristics and cutting speed, depth respectively through quick tool servo flexible mechanism and in situ laser synchronous servo flexible mechanism to realize diamond tool movement path and pulse laser strengthening parameter independent adjustment and accurate control, solve the problem of uneven machining quality induced by the mismatch of cutting process parameters and laser strengthening parameters, in situ laser-assisted cutting by laser beam through single crystal diamond tool and directly acting on material cutting deformation area, to eliminate the significant time, space lag between laser enhancement and material cutting deformation.

The application discloses a high-temperature-resistant and wear-resistant diamond saw blade and a preparation process thereof, and relates to the technical field of diamond saw blades. The saw blade is composed of a diamond cutter head and a steel base body, the diamond cutter head is made of an iron-based alloy matrix and diamond particles through hot-pressing sintering, and the iron-based alloy matrix is composed of the following components in a mass ratio: Fe 45-65 parts, Cu 10-20 parts, Ni 5-10 parts, Co 3-8 parts, Sn 2-6 parts, Cr 2-8 parts, Mn 1-5 parts, WC 5-12 parts, rare earth elements 0.1-0.5 parts and high-temperature solid lubricant 0.5-2 parts. Through the addition of the high-temperature solid lubricant, a self-lubricating film can be formed on the surface during the cutting of the saw blade, the friction coefficient is greatly reduced, the generation of cutting heat is effectively reduced, the high temperature generated during the cutting of the cutter head can be quickly conducted to the steel base body and dissipated, and the local overhigh temperature of the cutter head is prevented from causing the carbonization failure of the diamond.

A clamping device for diamond cutter grinding comprises a base, a supporting plate is fixedly connected to the upper side wall of the base, a rotating shaft is rotationally inserted into the supporting plate, a U-shaped plate is fixedly connected to the front end of the rotating shaft, a rotating seat is fixedly connected to the rear end of the rotating shaft, a jacking mechanism is arranged on the upper side wall of the U-shaped plate, and a side clamping mechanism is arranged on the inner wall of the lower side of the U-shaped plate. Compared with the prior art, the device has the advantages that the top pressing mechanism and the side clamping mechanism are arranged, so that the diamond cutter can be subjected to top pressing and side clamping dual fixation during machining, the cutter can be effectively prevented from moving slightly in the grinding process, and the stability of the grinding process is remarkably improved; according to the double-sided grinding tool, the rotating shaft, the rotating seat, the sliding plate, the switching block, the rotating disc, the limiting rod and the inserting groove are matched, so that the tool can be turned over under the condition that the limiting of the tool is not relieved, double-sided grinding is carried out, the operation process is greatly simplified, the production efficiency is improved, and meanwhile, the precision loss caused by repeatedly assembling and disassembling the tool is also reduced.

The invention discloses a shoe tree cutting tool and a preparation method thereof, the shoe tree cutting tool comprises a stainless steel bowl-shaped tool apron and a diamond annular blade, a positioning step is annularly arranged on the outer edge of the top surface of the tool apron, and the blade and an opening of the tool apron are welded into a whole after being aligned; the cutter has the size range matched with a tool, a specific-angle cutting edge is ground on the outer edge of the blade, and an inner side inclined face is arranged on the top face. The preparation method comprises the following steps: preparing the stainless steel tool apron and the diamond blade, performing alignment welding in a vacuum environment, performing grinding and edging in a laser or electric spark outer net, additionally arranging sand blasting and electroplating for cutting edge wax sealing protection according to requirements, marking a 90-degree circumferential using surface of the tool apron and the like. The tool is high in hardness, excellent in cutting precision, good in chip removal effect, capable of being reused in multiple faces, standard and stable in preparation process, capable of meeting the requirements for batch production and operation of shoe tree cutting and remarkable in industrial practicability.

The utility model relates to the technical field of machining, in particular to a diamond adjustable rose reamer which comprises a mounting base, an adjusting rod, a reamer head, a fixing screw, a diamond blade and a reamer handle, a groove is formed in the lower end of the mounting base, the adjusting rod is installed in the groove, the reamer head is installed at the lower end of the adjusting rod, and the diamond blade is installed on the reamer handle. A diamond blade is fixedly mounted on the tool bit through a fixing screw; during use, the fixing nut in screwed connection with the threaded column is unscrewed until the sliding column can slide in the arc-shaped groove, so that rotation of the rod body with the pin shaft as the center point is achieved, rotation adjustment of the angle of the tool bit is achieved, and meanwhile the cutting angle of the diamond blade can be finely adjusted by unscrewing the fixing screw. The purpose that one cutter can machine various hole chamfers is achieved, the number of needed chamfering cutters is reduced, the material cost, the labor cost and the like are reduced, in addition, adjustment is convenient and rapid, and the manufacturing cost is low.

The utility model discloses a double -end multipurpose cutter bar for the edge cutting of the edge trimming of the pot, install on the lathe of the edge trimming of the edge trimming of the pot, including cutter bar body, the first support arm is formed to the first support arm of cutter bar body lower part and extends outward, first mounting seat is equipped with to the first support arm, first diamond cutter particle is detachably installed to the first mounting seat, the cutter bar body below the first support arm forms the second support arm, second mounting seat is equipped with to the second support arm, second diamond cutter particle is detachably installed to the second mounting seat. The equipment is cooperated with lathe, can simultaneously turn the edge, turn the bottom, turn the pot body integration realization, only needs a car edge machine to realize, has saved the energy consumption and manpower resources of equipment, the bottom and the pot body are completed in the same lathe synchronously, can be good to eliminate the joint of the bottom and the pot body junction, has saved the surface treatment cost, reduces product stacking landing, perfects the assembly line operation, improves production efficiency.

The utility model discloses a diamond cutter assembling device which comprises a cutter body, a limiting and fixing mechanism and an auxiliary clamping mechanism. A groove is formed in the top end of the cutter main body, and a pair of corner grooves is formed in the side wall of the groove; the limiting and fixing mechanism comprises a fixing strip column, a pair of outer fixing guide rails is fixed to the fixing strip column, sliding supporting blocks are slidably connected to the outer fixing guide rails, a plurality of supporting column legs are fixed to the lower portions of the sliding supporting blocks, and the other ends of the supporting column legs are fixedly connected with limiting insertion blocks. The auxiliary clamping mechanism comprises a contraction frame, a plurality of supporting frame rods are inserted into the contraction frame, and the other ends of the supporting frame rods are fixedly connected with clamping patches. Through the arrangement of corresponding mechanisms, a user can conveniently replace and assemble the diamond cutter, meanwhile, the diamond cutter is not prone to being unstable and loosened in the using process, the safety of workers is guaranteed, and the probability of product damage is reduced.

A diamond cutting tool for forming concave spherical microstructures relates to the field of machining micro-concave spherical surfaces in ultra-precision milling. This application aims to solve the difficulties encountered in milling processes, such as the difficulty in machining small-sized spherical structures, the difficulty in ensuring machining quality, the difficulty in controlling the dimensions of spherical curved surfaces, and the difficulty in ensuring the surface contour quality of curved surfaces. Key technical points: This application strictly controls the shape of the diamond cutting tool during manufacturing to obtain a tool that meets the usage requirements. A laser cutting machine is used for preliminary machining of the tool contour. Laser cutting can achieve high-precision cutting of small sizes, with high cutting efficiency and good contour forming quality. Diamond polishing fluid is used to polish the cutting surface to reduce surface roughness. The diamond back angle is finely ground to prevent interference during tool use. The cutting edge machining process is divided into rough grinding and fine grinding. Rough grinding quickly forms the edge, leaving sufficient allowance for fine grinding, which results in extremely high contour accuracy and edge morphology quality. After the diamond tool tip is initially machined, it is brazed to the carbide tool holder in a vacuum welding machine. Then the cutting edge is machined to ensure that the rotation center of the cutting edge is coaxial with the axis of the tool holder.

This utility model discloses a PCD diamond forming tool with a double-stepped blade, comprising: a cylindrical metal shank; a helical blade mounting portion on one side of the cylindrical metal shank; a first diamond blade on the first circumference of the helical blade mounting portion; and a second diamond blade on the second circumference of the helical blade mounting portion. The first diamond blade has a first stepped blade at its axial outer end; the second diamond blade has a second stepped blade at its axial outer end; the first oblique edge of the first diamond blade has a first axial tilt angle; the second oblique edge of the second diamond blade has a second axial tilt angle; the first oblique edge of the first diamond blade has a first radial tilt angle; and the second oblique edge of the second diamond blade has a second radial tilt angle. This utility model employs a double-stepped blade design, allowing for one-time forming of the outer contour, resulting in high efficiency.

The application discloses a heat preservation treatment method for diamond blades after high-temperature sintering, which comprises the following steps: placing the sintered diamond blades into a heat preservation cavity and supporting the blades in the heat preservation cavity in a rotatable manner around the axis of the blades; introducing inert protective gas into the heat preservation cavity and driving the blades to rotate slowly around the axis of the blades by the gas flow; and adjusting the flow rate of the inert protective gas according to the temperature change in the heat preservation cavity to realize dynamic heat preservation treatment. The application drives the rotation of the blades by the gas flow, and does not need mechanical transmission mechanism, thereby improving the reliability of the equipment under high-temperature working conditions. Meanwhile, the cooling intensity is adaptively adjusted in sections according to the material characteristics of the blades in different temperature intervals, so that the cooling rate is controlled within a reasonable range, the generation of thermal stress and phase change stress is effectively inhibited, and the yield and use performance of the diamond blades are significantly improved.

The invention belongs to the field of polycrystalline diamond compacts, and particularly relates to a diamond blade capable of machining a high-quality cutting edge. The preparation method of the diamond blade comprises the following steps: (1) uniformly mixing diamond micro-powder with the particle size of not more than 2 microns and vanadium carbide to obtain mixed powder; and (2) the mixed powder and a hard alloy substrate are assembled and then subjected to high-temperature and high-pressure sintering, gathering of diamond particles is hindered through vanadium carbide, the distribution uniformity of the diamond particles and adhesives among the diamond particles is improved, and the diamond blade capable of machining a high-quality cutting edge is obtained. According to the method, the small-particle-size diamond micro powder and the vanadium carbide are selected for mixing, the particle size of diamond particles is reduced, the distribution uniformity of an adhesive is improved, and therefore the number and the size of notches are reduced, and the size of the notches can reach 0.01 mm or below.

The utility model relates to the field of bus connection, in particular to an automatic feeding mechanism for diamond blades, which adopts the technical scheme that the automatic feeding mechanism for the diamond blades comprises a discharging base, an air cylinder seat, a buffer seat, a bearing base, an air cylinder main body, a buffer, a storage rack and a balancing weight, according to the diamond piece feeding device, diamond pieces are pressed down to the discharging plate through the balancing weight, the discharging plate is pushed by the air cylinder body to move in a reciprocating mode, and therefore the diamond pieces in the storage frame are brought into the storage plate to be efficiently fed; and a buffer guide rail is matched with a buffer, so that the discharging plate can be reset and buffered after the discharging plate is reset, the situation that the discharging plate is excessively displaced, and consequently, the storage plate cannot take out the diamond pieces in the storage frame is avoided, and the problems that an existing automatic feeding mechanism for the diamond blades is poor in feeding efficiency and effect; and the problem that the diamond blade is easy to displace in the discharging process is solved.

The utility model discloses an anti-drop diamond saw blade tool bit, which relates to the technical field of diamond saw blades and comprises a saw blade body and a screw, the diamond tool bit is welded and mounted at the top of the saw blade body, a top cover is mounted at the top of the saw blade body in a threaded manner, and a mounting disc is arranged at the center of the saw blade body. A tenon tail is fixedly arranged on one side of the diamond tool bit, the tenon tail is in a dovetail shape, and the top cover and the diamond tool bit are both matched with the tenon tail. Compared with the prior art, the diamond tool bit has the advantages that a mortise and tenon structure is formed by the second dovetail groove, the first dovetail groove and the tenon tail, grooving on the main body of the diamond tool bit is not needed, damage to the overall strength of the diamond tool bit is avoided, and the risk of breakage of the tool bit is reduced; and through cooperation of the outer heat dissipation structure and the inner heat dissipation structure, heat dissipation of the diamond tool bit can be greatly improved, and the heat dissipation capacity of the diamond tool bit is improved.