73results about How to "Easy to sharpen" patented technology

The invention relates to a tool arc girnIt mainly comprises the body, the grinding head assembly, cross sledge, oblique angle, return working platform. It features in the grinding head and cross sledge connected to or installed on the body, oblique angle installed between the cross sledge and the return working platform which installs the sub crossing sledge with cutter carrier on it. The axial core of the oblique structure ranges within the 10 mm of the extended radius of the return shaft core and one half of the outer radius of the end surface of the sand wheel. It has strong rigidity, fine grinding quality, convenient adjustment, applicable for fine grinding.

The invention relates to a hand-cranking type pencil sharpener. The hand-cranking type pencil sharpener comprises a pencil fixing module for fixing a pencil to the preset position, a pencil sharpening module for sharpening the pencil, a power module for providing power for the hand-cranking type pencil sharpener and a shell for supporting the hand-cranking type pencil sharpener; the pencil fixing module and the power module are oppositely arranged on the two sides of the shell, and the pencil sharpening module is located inside the shell; and one end of the pencil sharpening module is connected with the pencil fixing module, and the other end of the pencil sharpening module is connected with the power module. The hand-cranking type pencil sharpener is energy-saving, environment-friendly and convenient to carry; and compared with a traditional hand-cranking type pencil sharpener, the hand-cranking type pencil sharpener has the beneficial effects that the service life is long, a core is not prone to being broken, and more labor is saved.

The invention discloses a finger-like milling cutter type machining device of spiral bevel gear comprising a machine body (5). The two sides of the body (5) are respectively provided with a space-adjustable workpiece box component and a cutting tool box component. The workpiece box component comprises a workpiece box (2), a workpiece spindle (14) and a driving mechanism for the workpiece spindle. The cutting tool box component comprises a spindle of cutting tool for driving the finger-like milling cutter to rotate and a driving mechanism of the spindle of cutting tool. The workpiece box (2) rotates around the vertical axis Y and is positioned on the machine body (5). The workpiece box (2) is provided with a positioning device for fixing and positioning the machine body (5). The cutting tool box also comprises a cutting tool base (16) which is positioned on the machine body (5), and a cutting tool feeding skid (19) which is movably positioned a X-directional straight guide rail (6) on the cutting tool base (6). The cutting tool spindle is positioned on the cutting tool feeding skid (19) which connects the feed driving mechanism. The finger-like milling cutter type machining device of spiral bevel gear has the advantages of short transmission chain, not requiring the mechanical transmission, high accuracy and good flexibility of program control.

The invention provides a device for spirally grinding a back knife face of a spiral drill based on electrospark wire cutting, which comprises a spiral drill, a rotary shaft, a ball screw nut pair, a rolling guide pair and a rack; the spiral drill is mounted at one end of the rotary shaft by a spanner three-jaw drill chuck; the other end of the rotary shaft is connected with a first step motor through a shaft coupler; the rotary shaft is mounted in a bearing seat by a bearing; a connecting plate is fixed to the bottom of the bearing seat; the ball screw nut pair is composed of a screw rod and a nut sleeved to the screw rod; the screw rod is connected to a second step motor; the nut is fixedly connected with the connecting plate; the rolling guide pair is composed of a groove arranged on a rolling guide block and a guide embedded in the groove; the rolling guide block is fixed to the bottom of the connecting plate; and the guide is fixed to the rack. The device provided by the invention has the advantages that: the device may not cause grinding burn injury of the back knife face for no grinding force, is not influenced by knife materials and knife sizes and can grind spiral drills of various conductive knife materials and sizes.

A double handle knife is described with the secondary handle rotatable upon a pivot post. In further embodiments: the secondary handle is mounted to the top of the blade at a fixed angle of 45 degrees (+ or −25) degrees between the long axis of the secondary handle and the long axis of the knife blade; and attachments are described to convert single handle knifes into double handle knives functioning identical to those described above.

A methods is described utilizing the double handle knife invention in any of its embodiments being gripped by the dominant hand on the primary handle, four fingers of the non-dominant hand being placed evenly upon the secondary handle with long axis thereof positioned at an angle of 45 degrees (+ or −25) degrees to the long axis of the knife blade, the palm/or thumb of the same hand positioning the food item, both hands applying downward pressure and the food item being easily and accurately cut.

The invention discloses a machining method for a protection cover part. The protection cover part is punched and formed through a J23-16T punching machine, and an elliptical or rhombus sheet is used for a protection cover part punching blank; the punching process is divided into cover forming, shaping and punching and edge cutting; the cover is formed through punching through a flange-free cylindrical tension die, and the cover is punched into a cylinder large in the outer diameter and low in height; a flange-free cylindrical tension die of different size is changed to be punched continuously to reduce the cover diameter and increase the cover height till the cover diameter and height approach the design sizes gradually to complete the cover forming stage; changing the shaping die, punching the diameter and the height of the cover into the final design size through a flange cylindrical tension die, punching flanges, and performing punching and edge cutting through a punching and edge cutting composite die. According to the machining method, the shaping quality is good, lubrication is performed without lubricants during tensioning, and annealing treatment is not needed during tensioning; processes can be shortened, dies are reduced, and the product efficiency is improved.

The invention discloses a twist drill. The twist drill is characterized in that main blades of the twist drill are bent blades, in other words, a plurality of spiral grooves are formed in spiral surfaces of front tool faces of the main blades, projection of each spiral groove on an end plane of the twist drill is a curve or a fold line which is used as a generating line, and the spiral grooves spirally move around a drill spindle from the generating lines. The invention further discloses application of the twist drill to drilling machining. The twist drill and the application have the advantages that the twist drill is excellent in comprehensive drilling performance, holes can be drilled and machined within a short time, the twist drill is low in drilling power consumption and high in tool durability, and a tool sharpening method is simple and convenient and is easy to implement.

The invention provides a shared knife sharpener and a shared knife sharpening system with the same. The shared knife sharpener comprises a box body, a knife sharpener body, a controller, a coin collector, a third party payment module, a heater, a radiator, a storage battery and a power module, wherein the knife sharpener body, the controller, the coin collector, the third party payment module, theheater, the radiator, the storage battery and the power module are arranged inside the box body. Photovoltaic power generation equipment is further arranged outside the box body. The third party payment module is connected with the input end of the controller. The coin collector is connected with the input end of the controller, and the output end of the controller is connected with the knife sharpener body. The shared knife sharpening system comprises the shared knife sharpener, a server and a mobile phone of a user. One or more shared knife sharpeners are installed in different areas, and each shared knife sharpener is connected with the server. The server is in wireless connection with the mobile phone of the user. According to the shared knife sharpener and the shared knife sharpeningsystem with the same, the photovoltaic power generation equipment and the storage battery are adopted so that electric energy can be saved, operating cost is reduced, the shared knife sharpener can further be installed at regions without power connection conditions, the usage rate of the knife sharpener is increased and wasting of resources is reduced.

The invention discloses a hard tooth surface gear finish turning process. The process comprises the steps that 1, a gear workpiece is roughly machined, a tooth turning process is adopted, machining allowance is reserved on the tooth surface of the workpiece, the tooth root of the workpiece is dug, and after rough machining is finished, heat treatment is carried out; 2, finish turning is carried out on the gear workpiece subjected to rough machining, a tooth turning process is adopted, the machining allowance of the tooth surface of the workpiece is cut off by the side edge of the cutter tooth,and the tooth root of the workpiece keeps the surface layer of heat treatment. A design method of a tooth turning tool of a hard tooth surface gear comprises the following steps of 1) the rake angleof the tooth turning tool is designed to be a negative angle, and the rake surface is designed to be a conical surface or a curved surface easy to grind; and 2) according to the flexible adjusting method of the working angle of the cylindrical tooth turning tool, the working angle of the tooth turning tool is made to fall within a preset range which is most suitable for finish machining of hard tooth surface gear workpiece with one certain hardness, and a gear cutting edge curve is calculated. Hard tooth surface gear machining efficiency is high, the using cost is low, gear transmission and noise reduction are facilitated, and the tool service life is long.

A sphere cutter blade grinding device comprises a center and a clamp body, wherein two center holes are formed in the left end and the right end of the clamp body respectively, a sphere cutter installation groove and a cutter fixing mechanism are arranged at the upper end of the clamp, and a movable cushion block is installed at the bottom of the sphere cutter installation groove. The novel sphere cutter blade grinding device can grind various sphere cutter blade arcs conveniently, rapidly and accurately, reduce equipment investment, and meet the production requirement.

The invention relates to a drilling reamer comprising a tool holder and a tool bit, wherein the tool bit is arranged on one end of the tool holder, and the horizontal center line of the tool bit is overlapped with that of the tool holder. The drilling reamer is characterized in that the tool bit is provided with a threaded hole along the horizontal center line, and the threaded hole is led to the inside of the tool holder. The drilling reamer is wide in application range and convenient to sharpen, and a drill bit is replaceable.

The invention provides a full-automatic slicer. The full-automatic slicer comprises a base, wherein a slicer body is bolted to the top of the base; an operation panel is bolted to the left side of thefront surface of the base; a manual regulator is rotationally connected to the right side of the front surface of the base; material baffles are bolted to the periphery of the slicer body; a cutter protection ring is annularly bolted to the top of the right side of the slicer body; handrails are bolted to the periphery of the top of the right side of the slicer body; and a locking handle is bolted to one side, away from the cutter protection ring, of each handrail. Through the cooperation of a nail plate sliding shaft, the material baffles, a material pressing nail plate, a nail plate heavy block, the locking handles and the handrails, boneless meat, ham products, bread, melons and fruits and other food can be quickly sliced, manual meat slicing work of a user is replaced, the food slicing efficiency is improved, the time and energy of the user are saved, meanwhile, the labor intensity of the user is reduced, and a hand of the user is prevented from being cut accidentally.

The invention discloses a method for machining a side punch through hole of a mold punching device, which comprises the following steps: 1, when sheets are not fed, adhering the lower bottom surface of a punching device to the upper surface of a lower mold, and determining a through hole positioning circle for the idle motion of a side punch through hole on the side wall of the punching device according to a side punch hole corresponding to the lower mold; 2, when the sheets are fed, determining a through hole positioning circle for the punching motion of the side punch through hole on the side wall of the punching device according to the side punch hole corresponding to the lower mold; 3, drawing an enveloping circle enveloping the through hole positioning circle for the idle motion and the through hole positioning circle for the punching motion on the side wall of the punching device; and 4, drilling the side punch through hole along the enveloping circle, wherein the diameter of the side punch through hole is greater than that of the enveloping circle. In the method, on the premise of ensuring the punching function of the mold, a milling process method which must be used originally is changed into a drilling method, and the advantages such as multiple sizes of drill bits, high cutting efficiency and convenient sharpening process are fully taken, thereby achieving the purpose of enhancing the machining efficiency and reducing the cost.

The invention discloses a cutter sharpening rack. The cutter sharpening rack comprises a bottom plate, a sliding plate which is detachably connected onto the bottom plate and a cutter sharpening block which is fixedly connected onto the sliding plate; multiple cutter sharpening grooves are formed in the cutter sharpening block; the cutter sharpening grooves are separately divided into first section grooves and second section grooves from the outer part to the inner part along the cutter sharpening block; and the groove opening widths of the first section grooves are larger than the groove opening widths of the second section grooves. According to the cutter sharpening rack, the hand of an operator cannot be scratched during a cutter sharpening process; and the operator can sharpen a cutter conveniently.

The invention relates to the field of blade machining, and particularly discloses a machining process for a high-speed steel surface-replaceable blade. The machining process comprises a high-speed steel plate raw material preparing step; a cold rolling treatment step; a punching blank making step; a vacuum quenching and tempering treatment step; and an edge grinding machining step, and thus the blade finished product is formed. According to the technical scheme, after the quenching treatment and tempering treatment in the step 4 are carried out, the hardness of the refined blade made of high-speed steel is 63-70 HRC and is smaller than that of a blade made of a conventional hard alloy material, then edging of the refined blade is easier and more convenient during edge grinding machining, thus the edging strength of the refined blade can be effectively reduced, and the machining cost is reduced.

The invention discloses a production process of a high-toughness ceramic cutter. By adding nano silicon carbide, nano titanium nitride, modified sepiolite powder, zirconium oxide whiskers and aluminum hydroxide coated calcium fluoride, the toughness, thermal shock resistance and bending strength of the produced ceramic cutting tool are effectively improved. According to GB/T4741-1999 measurement, the bending strength of the high-toughness ceramic cutting tool is 1000 to 1500 MPa. Meanwhile, the invention discloses machining equipment, and the machining equipment can polish one face of the ceramic cutter and clean the other face of the ceramic cutter at the same time. Water is sprayed on the surface of the abrasive belt while the grinding surface is ground, so that chippings can be prevented from splashing while overheating during grinding is prevented; whereas the cleaning of the other side is that sewage generated in the polishing process is recycled and sprayed on the surface of the ceramic cutting tool through filtration and atomization.