30results about How to "Reduce the frequency of tool changes" patented technology

The invention discloses a preparation method of a diamond composite coating of a micro milling cutter, and relates to the micro milling cutter. The preparation method comprises the following steps of: placing a PCB (Printed Circuit Board) micro milling cutter into a tool and then placing into a deposition reaction chamber; evacuating the deposition reaction chamber, and introducing methane (CH4), hydrogen gas and oxygen gas into the deposition reaction chamber; applying direct-current electric arc to a heating wire which is installed in the deposition reaction chamber, wherein a deposition process in the deposition reaction chamber is divided into five stages including a heating stage, a nucleation stage, a submicrocrystal growth stage, a superfine nanocrystalline growth stage and a final growth stage, different gas-phase deposition conditions are adopted in the five stages, the submicrocrystal growth stage and the superfine nanocrystalline growth stage can be generated in a circulating manner to form a diamond submicrocrystal and superfine nanocrystalline composite coating, and the circulating generation number is N (N is not less than 1). The prepared diamond composite coating of the micro milling cutter can be used for keeping the cutting edge to be sharp for a longer time, obviously improving the machining effect, prolonging the service life of the cutter, reducing the cutter changing frequency, improving the machining efficiency and lowering the machining cost.

The invention discloses a rotary cutting tool with a double-layered cutting edge. The rotary cutting tool comprises a tool body, the tool body is provided with at least one set of tool grooves, a cutting tip set consisting of a first cutting tip and a second cutting tip is fixed on each tool groove by a fastener, the first cutting tip is pressed on the second cutting tip, the second cutting tip is pressed on the tool groove, and in the process of cutting processing, the cutting feed of the second cutting tip is larger than or equal to that of the first cutting tip. The rotary cutting tool with a double-layered cutting edge disclosed by the invention has the advantages of high cutting efficiency, easy manufacturing, cost reduction and smooth chip removal.

The invention discloses method for finish machining of tooth profile of a large-modulus hard-tooth-face rack. The method is high in production efficiency and suitable for batch part production. The method comprises the steps of installing the rack subjected to surface hardening on a working table of a machine tool; firstly using face milling cutter to perform milling to a left tooth oblique plane and a right tooth oblique plane by means of a track method; using a ball end mill to perform milling to the left tooth bottom circular-arc surface and the right tooth bottom circular-arc surface by means of a forming method; using the ball end mill to perform milling to the tooth bottom face by means of the track method. In addition, cutter structures, cutter and machine tool selection, cutter using modes and cutter installing modes are further optimized. Compared with the prior art, the machining efficiency is remarkably improved, and the tooth face roughness meets the requirement.

A tunnel boring machine cutter head suitable for complex hard rock geology, including manholes, gauge cutters, side cutters, scrapers, shovel blades, positive hob, center hob and water spray nozzles, and an array is arranged in the center of the cutter head The center hob is provided with an array of positive hob on the periphery of the center hob, and an array of gauge knives, edge knives, scrapers and shovels uniformly distributed along the outer periphery of the cutter head on the periphery of the positive hob; There are also manholes on the periphery, and several water nozzles are arranged around the cutter head. The center hob adopts a small-spacing cutter; the diameter-keeping cutter adopts a cutter box structure in which large and small knives are interchanged; and the side cutter raises its cutter shaft when excavating. The advantages of the invention are that the center cutter of the cutter head can realize the spacing between small cutters, improve the rock breaking efficiency of the center cutter, reduce the labor intensity of construction personnel, speed up the construction progress and save the construction cost.

The invention relates to the field of numerical control machining, in particular to a positioning tool change type numerical control tool holder based on reliability comprehensive design, which includes horizontally arranged support and guide columns, fixed mounting frames are symmetrically arranged at both ends of the support and guide columns, and the fixed mounting frame The upper ends are provided with fixed installation holes, and a sliding installation cylinder is arranged horizontally in conjunction with the supporting guide column, and a lifting installation plate is horizontally arranged directly below the sliding installation cylinder, and the lifting installation plate and the sliding installation cylinder are connected by an electronically controlled lifting column. The middle position of the lifting installation plate is vertically equipped with a limited rotation sleeve, through horizontal guide displacement adjustment, lifting height adjustment, and rotation displacement adjustment, the working range of the device is significantly improved, and the helical gear coarse adjustment and gear fine adjustment are used to realize positioning. Tool change operation, and the device can preset multiple sets of tools at the same time, the tool change process is continuous and stable, so that the device can greatly improve the efficiency of CNC operations, reduce the frequency of tool change, and at the same time have high tool change accuracy.

The invention discloses a cutting cutter of which a single cutter groove provided with two cutting blades. The cutting cutter comprises a cutter body which is provided with at least one cutter groove group. A cutting blade group composed of the first cutting blade and the second cutting blade is fixed in the cutter groove through fasteners. The first cutting blade is pressed on the second cutting blade and the second cutting blade is pressed on the cutter groove. In the time of cutting, the first cutting blade and the second cutting blade perform cutting independently in sequence. The cutting cutter of which the single cutter groove provided with the two cutting blades has the advantages of being simple in structure, convenient to manufacture, smooth in chip discharging, high in cutting efficiency and capable of saving cost.

The invention relates to a multi-tool-position conversion device and a multi-cutter hand-hold electric carving machine applying same; a plurality of axial holes are arranged around the center of a rotating platform of the conversion device, and the rotating platform is provided with a locating mechanism. The electric carving machine comprises a motor and a driving wheel, the rotating platform is connected on a bracket, driven wheels are correspondingly arranged inside the axial holes and correspond to a flexible shaft, a handle and a carver, and any or two adjacent driven wheels can be switched and located, so as to be contacted and matched with a belt in a transmission way. The multi-tool-position conversion device has reasonable and simple structure, and can be matched with the existingcarver for use. The electric carving machine is provided with a plurality of different carvers which are debugged, so as to realize carver replacement without stopping the machine, thus reducing the frequency of carver replacement and the equipment loss, being rapid and convenient in operation, and greatly improving the working efficiency of carving work; in addition, one carving machine can be used for operating a plurality of carvers, so that the cost is reduced, the occupying space is small, the operation station is proper, and the work quality can be improved.

A robot-based automatic loading system for cigarette packaging square accessories is characterized by comprising a bulk accessory conveyor system arranged on a gantry-type main support, a robot fixture close to the right side of the gantry-type main support, a bulk accessory wrapper recycling device fixed at the front end of the right side of the gantry-type main support, an automatic bulk accessory waste recycling device fixed at the rear end of the right side of the gantry-type main support, a bulk accessory wrapper withdrawal assisting mechanism arranged on a bulk accessory conveying rack, a synchronous belt conveyor connected to the left side of the gantry-type main support, and a joint robot arranged on the robot fixture, as well as a pneumatic system for providing power for a material transporting system, a material conveying system and a tool cutting system. The robot-based automatic loading system has the following beneficial effects: the production cost is effectively lowered, and the production efficiency is greatly improved; and the robot-based automatic loading system is simple in structure, good in strength and rigidity and stable and reliable in operation, and is efficient and energy-saving.

The invention provides a ring cutting tool. The ring cutting tool comprises a base body and a rotary installation portion rotationally arranged on the base body. A through containing cavity is formed in the middle of the rotary installation portion. A blade group is contained in the containing cavity and composed of multiple blades provided with cutting edge portions. All the blades are distributed in the circumferential direction of the containing cavity, and the blades are connected with the base body and can pivot relative to the base body. Each blade is hinged to the rotary installation portion through a connecting portion. The area of a ring cutting space which is defined by the cutting edge portions of all the blades in the middle of the containing cavity is driven to change dynamically because of rotation, relative to the base body, of the rotary installation portion. According to the ring cutting tool, the multiple blades are driven through rotation of the rotary installation portion to penetrate into a surface layer of a cable or pipe, the blades can easily enter the surface layer for cutting, and the cutting and stripping operation can be conducted on the surface layers, of different hardness degrees, of cables and pipes; and besides, the ring cutting space can change dynamically, so that the ring cutting tool is suitable for removing the surface layers of the cables or pipes of different diameters, the frequency of changing tools can be lowered during layer stripping, and the production efficiency is improved.

The invention discloses a drilling tool. The drilling tool comprises a tool body; the tool body comprises a handle part, a cutting end part and a peripheral surface located between the handle part and the cutting end part; the handle part and the peripheral surface are symmetric about a rotation central axis of the tool body; a central groove and a circumferential groove which both communicate with a spiral groove in the circumferential surface are formed in the cutting end part, wherein the center groove is arranged adjacent to the rotation central axis, and the circumferential groove is arranged adjacent to the peripheral surface; cutting blades are arranged in the central groove and the circumferential groove, wherein the cutting blade arranged in the central groove is an inner blade, the cutting blade arranged in the circumferential grooves is an outer blade, and the inner blade and the outer blade are the same cutting blades; each cutting blade comprises a short cutting edge and a long cutting edge which are adjacent; the edge shape of each short cutting edge is different from the edge shape of the corresponding long cutting edge; the long cutting edge of the inner blade and the short cutting edge of the outer blade are combined to form a complete main cutting edge used for drilling a hole, the inner blade completes machining of a center area of the hole, and the outer blade completes machining of an outer ring area of the hole. The drilling tool has the advantages of being small in cutting vibration, high in machining precision, stable, reliable and the like.

The invention discloses a workpiece clamp for a numerical control machine tool, which relates to the technical field of numerical control machine tools and aims at solving the technical problem of improving the batch processing efficiency. The clamp comprises two transfer plates, a bridge plate, a plurality of side screw bolts, a plurality of side pressing plates, a plurality of positioning screw rods, a plurality of positioning pressing plates and four ball lock shafts, wherein the two transfer plates are respectively arranged on two motive power heads of the numerical control machine tool, the upper part of each transfer plate is respectively bent in the direction towards the other transfer plate and is respectively provided with an initial positioning pin, the front part and the back part of each transfer plate are respectively provided with a transfer hole, a ball lock is arranged in each transfer hole, the bridge plate is a rectangular flat plate, screw hole arrays are arranged on the plate surface of the bridge plate, an initial positioning hole is respectively arranged at the left edge and the right edge of the plate surface of the bridge plate, four bridging holes are arranged at four corners of the plate surface of the bridge plate, a plurality of side screw holes are respectively arranged at the peripheral surface of each long edge of the bridge plate, the plate surface of each side pressing plate is provided with a plurality of side pressing holes, and positioning holes for the positioning screw rods to pass through are respectively arranged on each positioning pressing plate. The clamp provided by the invention can be used for mounting and clamping a plurality of workpieces in one step.