15results about "Metal sawing tool making" patented technology

This invention relates to a wear-resistant and high-temperature resistant composite coated band saw blade, its preparation method and application. Through the synergistic optimization of the three-layer coating structure and composite deposition process, it fundamentally breaks through the bottleneck of the existing technology and has the following advantages: (1) Gradient transition layer: Through the composition gradient design of TiN / AlTiN / HfN, the difference in thermal expansion coefficient between the matrix and the core layer is matched, significantly improving the interfacial bonding force and effectively alleviating the thermal stress concentration during high-temperature sawing; (2) Superhard core layer: PcBN is used as the wear-resistant skeleton, HfC is used as the toughening phase, graphene is used as the interfacial reinforcement phase, and Ti-Cr-Ni alloy is used as the bonding phase to achieve the multi-effect synergy of "superhard + toughening + high-temperature oxidation resistance"; (3) Self-lubricating surface layer: The composite coating is used as a friction reduction barrier to reduce the friction coefficient to below 0.12, while isolating oxygen penetration and further improving the high-temperature oxidation resistance of the coating.

A saw blade (2) for cutting a pipe (7) containing a conduit (8) is described, wherein a depth stop element (1) is attached to one side of the saw blade (2). Furthermore, a method for cutting a pipe (7) containing a conduit (8) is described. The method comprises mounting a saw blade (2) on a multitool, setting the saw blade (2) into an oscillating motion by the multitool, and cutting the pipe (7) with the saw blade (2), wherein the depth stop element (1) rests against the outer surface of the pipe (7) during cutting.

The application relates to the technical field of mechanical processing control, and discloses an alloy saw blade production and processing automatic control method and system.The method comprises the following steps: determining abnormal frequency distribution by acquiring an original vibration signal and converting the original vibration signal into a frequency domain spectrum; extracting a feature vector and determining an abnormal separation vector when an energy proportion exceeds a limit; calculating the deviation of the feature vector from a normal mode by using a support vector machine, combining a fault mechanism topology graph to determine a coupling influence index; adjusting the rotating speed and the feed amount according to a leading abnormal source and a machine tool stiffness characteristic to determine an adjustment scheme and update equipment control instructions; and adopting wavelet transform to analyze signal multi-scale components, and realizing minimum coupling influence control of the whole intermittent cutting process through an iterative optimization cycle condition. The method can solve the problem of low early abnormal identification precision in the prior art.

This invention discloses a welding process for assembling ultra-large saw blade substrates, applicable to the manufacture of diamond circular saw blade substrates with an outer diameter greater than 5000mm. The process sequentially includes the following core steps: segmented substrate preparation and pretreatment, adaptive anti-deformation unconstrained positioning, pre-welding dehumidification pretreatment, double-sided alternating segmented back-welding, dynamic stress compensation hot-pressing slow cooling, and multi-stage finishing. It preferably utilizes high-strength weldable structural steel that requires no preheating, combined with closed-loop heat input control and gradient wear-resistant coating optimization. This invention solves the technical problems of large post-weld thermal deformation, high residual stress, and substandard precision in ultra-large saw blades. The welded substrate exhibits high precision and stable performance, suitable for industrial mass production.

A cutting member for a saw chain and a method for the production thereof, the cutting member comprising a support part made of a steel alloy and a cutting part welded to the support part along a welding connection made of a high speed steel. The steel alloy of the support part is a tool steel that has the following composition (specifications in % by weight):Carbon (C)0.4 to 1.0Silicon (Si)up to 1.8Manganese (Mn)up to 0.6Chromium (Cr)4.5 to 12Molybdenum (Mo)up to 3Vanadium (V)up to 2Iron (Fe) and accompany elements caused by melting and impurities as the remainder. The steel alloy of the support part in a quenched and tempered state has a hardness of more than 600 HV and a tensile strength of more than 2000 MPa as a result of curing at a suitable temperature above the austenitizing temperature of the high speed steel.

A device and method for grinding and / or milling teeth of saw bands where a feed device for the clocked feeding of a temporary workpiece is formed from a plurality of mutually parallel saw bands includes a clamping unit into which the temporary workpiece is clamped, and a machining unit with at least one machining tool for simultaneous machining of a plurality of teeth of the temporary workpiece is individually modifiable and with which these types of teeth of saw bands can be efficiently and economically manufactured. The clamping unit is displaceable together with the feed device along a feed direction.

The invention relates to a saw blade (2) for cutting a pipe (7), in which a line (8) runs, wherein a depth stop element (1) is attached to one side of the saw blade (2). The invention also relates to a method for cutting a pipe (7), in which a line (8) runs. The method comprises mounting a saw blade (2) on a multitool, setting the saw blade (2), by means of the multitool, in an oscillating movement, and cutting the pipe (7) with the saw blade (2), wherein the depth stop element (1) bears against the outer surface of the pipe (7) during the cutting.

This invention discloses a split-type saw blade end mill, belonging to the field of metal cutting tool technology. It includes: a cutter body with multiple mounting slots distributed circumferentially; and multiple cutter blades, each detachably mounted in a corresponding mounting slot, each blade having a cutting edge for forming saw teeth. The cutter blades are configured such that after the cutting edges wear, they can be removed from the cutter body and replaced individually, while the cutter body remains usable, thus avoiding overall scrapping due to localized wear. This application overcomes the shortcomings of existing integral form end mills, such as difficult manufacturing, high cost, and overall scrapping after wear.

The application provides a full-automatic grinding production line for large saw blades, and belongs to the technical field of saw blade production equipment. It comprises a six-axis manipulator, two trolley feeding and discharging devices for placing blanks and finished saw blades respectively, two polishing devices and a blade turning and cleaning device provided with a waste blade mounting station and a detection station, and arranged in the circumferential direction of the six-axis manipulator. The two trolley feeding and discharging devices for placing blanks and finished saw blades respectively, the two polishing devices and the blade turning and cleaning device provided with a waste blade mounting station and a detection station are placed in cooperation with the six-axis manipulator, so that the two polishing devices can share a set of supporting equipment for saw blade grinding, the two polishing devices can alternately polish to realize continuous operation, compared with a production line adopting a single polishing device, the polishing device can reduce the downtime during feeding and discharging, and compared with two production lines adopting a single polishing device, the cost of a set of supporting equipment is reduced.

The application discloses a secondary feeding device and a saw blade grinding machine equipment, wherein the secondary feeding device comprises a primary discharging platform for receiving saw blades discharged by a corresponding first grinding machine; a surface turning mechanism located on one side of the primary discharging platform, directly or through a given auxiliary picking tool, picking the saw blades and turning the surface of the saw blades; a secondary feeding platform for receiving the saw blades turned by the surface turning mechanism; and a secondary feeding mechanism for feeding the saw blades on the secondary feeding platform to a corresponding second grinding machine. The secondary feeding device according to the application is suitable for double-sided grinding through secondary feeding under the condition that the axis of the saw blade to be ground is perpendicular to the axis of the grinding wheel of the grinding machine.

The application discloses a sawtooth optimization method based on t-distribution cumulative distribution and a disc saw preparation method. The disc saw preparation method is innovative in constructing a sawtooth profile by using a Student-T distribution CDF curve in view of the problems of stress concentration, loud noise and short service life of a traditional sawtooth, and controls tooth profile curvature through a degree of freedom v parameter to realize continuous and smooth transition from a tooth root to a tooth top. The method comprises the following steps: design parameter input, single-tooth reference profile generation, single-tooth profile discretization and coordinate conversion, tooth back and chip space construction, circular array replication, three-dimensional model generation and verification and manufacturing data output, and a tooth profile suitable for different requirements is obtained by adjusting the v value, and an optimal profile disc saw is output, so that the cutting noise of the disc saw is reduced, the tool life is prolonged, and the machining quality and efficiency are significantly improved.

The application discloses a laser welding process of saw blade heads and belongs to the technical field of laser welding. The process mainly comprises the following steps: first head welding; second head welding; adjusting the deflection angle of a laser beam by a galvanometer so that the laser beam irradiates the weld and the heat affected zone of the previous head which has been welded and is in a natural cooling state, and then performing tempering scanning with low energy density so that the tempering treatment is completed; at the same time, the head which has been welded is naturally cooled; the operation is circular until the last head is welded; and the last head is tempered. In the laser welding process, the tempering scanning task of the previous head is alternately performed by the galvanometer deflection while the current head is being welded and is being cooled ， Thus, the hardened structure of the weld is eliminated, the toughness and fatigue strength of the weld of the head are improved, the welding time is saved, and the overall machining efficiency is improved. The application is mainly used for the laser welding of saw blade heads.

The application discloses a bimetal saw blade and a preparation method thereof, and belongs to the technical field of special steel production. The preparation method comprises the following steps: smelting, rolling, cold rolling and saw blade manufacturing of the raw materials in a designed proportion. In the process, by controlling the composition of the raw materials, controlling rolling and cooling in the hot rolling process, preparing the structure in the cold rolling process and the heat treatment process in the saw blade manufacturing process, the bimetal saw blade can be obtained under the condition of using only 50-60% of the alloy cost, and the service life of the bimetal saw blade can reach more than 80% of the service life of the X32 high alloy steel. For specific use environment, the performance requirements can be met by using the product, and performance excess can be effectively avoided. In addition, by optimizing the composition, controlling the hot rolling process, the cold rolling process and the heat treatment process, the purpose of achieving a relatively high service life under the condition of low alloy cost is realized without additional processes and equipment, and the raw material cost and the manufacturing cost are effectively reduced.

The application discloses a saw blade loading device and a saw blade grinding machine equipment, wherein the saw blade loading device comprises a lifting table with a table top for holding a saw blade stack, a lifting mechanism for driving the lifting table to lift, a position monitoring device for monitoring whether the uppermost saw blade of the saw blade stack is in position, a pushing device, the lower edge of the actuating head of the pushing device being lower than the upper surface of the uppermost saw blade and higher than the lower surface of the saw blade, a supporting table located at one side of the saw blade stack, the side being the side impacted by the pushing direction of the pushing device, for supporting the saw blade pushed by the pushing device, and a picking-up mechanical arm for picking up the saw blade on the supporting table and loading. According to the saw blade loading device, the saw blade loading reliability is relatively good.

The application relates to the technical field of sawtooth welding devices, in particular to a sawtooth welding device for band saw blades, which comprises a welding table, a cylinder arranged on the welding table, a welding gun clamping frame connected with the cylinder, a welding gun installed on the welding gun clamping frame, a clamping assembly for clamping the band saw blade, two groups of clamping plates included in the clamping assembly, a moving assembly for moving the clamping assembly relative to the welding gun, a fixing frame installed on the welding table included in the moving assembly, and a cleaning assembly arranged at the connection between the clamping assembly and the moving assembly. The band saw blade is clamped by the clamping plates, and the welding gun is convenient for welding. In the welding process, the first transmission shaft and the second guide block are matched to move the band saw blade, meanwhile, the cleaning ring on the cleaning sleeve moves along the first guide groove, and the bristles on the cleaning ring clean the surface of the first guide groove.