154 results about "End milling" patented technology

The invention provides a design method for balancing cutting force between cutting edges of a symmetrical gradually-changing end mill, and relates to the technical field of shape characteristics of milling cutters, through the design of the gradually-changing cutting edges, a truncated edge is evolved into a sharp shape, and multifunctionality from rough machining to finish machining is achieved; the gradual change characteristic remarkably improves the chip breaking effect in the cutting process, tool adhesion is effectively prevented, meanwhile, cutting chip breaking is promoted by thinning cutting chips and reducing the bending rigidity of the cutting chips, in addition, due to the symmetrical design of the odd number of cutting edges and the even number of cutting edges, cutting force is balanced, cutting loads are reduced, abrasion is reduced, and the service life of the tool is prolonged. Further, the machining stability is enhanced, and high-quality surface quality and machining precision are ensured; through deep analysis of cutting force and distribution thereof, vibration is effectively reduced through the design, the stability of the cutter is further improved, the service life of the cutter is further prolonged, meanwhile, the fracture state of cuttings is optimized, and the machining efficiency is improved.

By analyzing the micro-texture of the machined surface, inverse estimation of tool mounting eccentricity is realized on the machine tool. [Solution] Under predetermined workpiece parameters, simulation machining is performed based on multiple parameter sets obtained based on different tool parameters, tool attitude parameter settings, and cutting parameters, and the surface shape after machining for each parameter set is obtained. An optimization variable set is constructed based on each parameter set, and the optimization variable set when waviness is most sensitive to changes in tool mounting eccentricity is determined. The tool mounting eccentricity during machining of the workpiece sample is calculated using the constructed relationship between the tool mounting error and the peak-to-peak value of waviness. If the tool mounting eccentricity exceeds the predetermined value, the bull nose end mill is reattached and the workpiece sample is replaced so that the workpiece can be actually machined, and this calculation of tool mounting eccentricity is repeated until the tool mounting eccentricity becomes smaller than the predetermined value.

The utility model relates to synchronous cross operation control over transverse station connection, rail piece flash processing and heel end rail bottom milling of special-shaped steel rails, in particular to a multi-station rail piece connection system for flash processing after forging of steel rails, which can be used for intelligent manufacturing of turnouts. The whole transverse station mainly comprises a feeding and storing area, a feeding and overturning area, a waiting area, a machining area, an inspection area, a discharging and overturning area and a discharging and collecting and storing area. The material waiting area has the double functions of material taking, material placing and material waiting for heel end milling rail pieces and material waiting for flash machining at the same time, so that rail piece feeding connection of rail bottom milling and transition section flash machining is achieved. The connecting vehicle body can move in the transverse area of the whole flash machining production line in a through mode and can transversely penetrate through seven transverse station areas. The connecting system is mainly composed of a ground rail unit, an advancing power set, a vehicle body frame, a rail piece inverted supporting body and a height oil cylinder set.

The invention relates to the technical field of numerical control machining, and discloses an end mill tool bit parameter optimization method which comprises the following steps: step 1, collecting cutting force data, cutting temperature data and machining vibration data in a machining process in real time through a sensor group integrated on an end mill tool bit; the sensor group comprises a strain sensor, a temperature sensor and a vibration sensor; 2, the collected cutting force data, cutting temperature data and machining vibration data are subjected to wireless processing; according to the technical scheme, a closed-loop control system is constructed, the feeding speed, the cutting angle and the cutting depth are automatically adjusted according to dynamically-changed cutting force and vibration data, it is ensured that the machining process is always kept within a stable interval, the machining precision and the surface quality of a workpiece are effectively improved, and the machining efficiency is improved. Compared with the technical scheme that fixed preset parameters are adopted for machining in the prior art, the defect that the precision and quality of the workpiece are finally damaged due to process instability caused by the fact that adaptive adjustment cannot be achieved is overcome.

The application discloses a kind of head crescent boss processing methods of pin shaft structure bite cutting forceps, comprising the following steps: (1) the head of bite cutting bite cutting forceps is aged hardening;(2) the lower forceps tube of bite cutting forceps is clamped on five-axis engraving machine;(3) whether workpiece clamping on tool is in place is detected;(4) detection end mill, run program, carry out roughing to blank;(5) detection T-shaped milling cutter I, the wear condition of tool is detected in machine using tool detector, whether tool wear exceeds limit value is judged, if exceeding tool wear, machine tool automatically alarms, prompts operator to replace tool;(6) run program, outer circular surface is processed using T-shaped milling cutter I, (7) tool is replaced for T-shaped milling cutter II, T-shaped milling cutter II is detected again, and detection steps are as in step (5);(8) run program, inner circular surface is processed using T-shaped milling cutter II.The method can be processed crescent structure at a time, guarantee processing efficiency, precision and stability.

A multi-sensor integrated intelligent tool holder real-time monitoring and anti-collision system, comprising: an intelligent tool holder device, an external PLC controller, a built-in relay, a numerical control machine tool and a PC signal processing and display module; the intelligent tool holder device comprises: a handle cone structure, a force sensor structure, a resistance strain gauge group, a protective shell, a plurality of supporting copper columns, a first hardware circuit board, a second hardware circuit board, a vibration sensor, a lithium battery, a fixed upper shell, a fixed bottom shell, a draw stud, a clasp spring, a compression cap and an end mill. The application is based on the collected cutting signals for real-time analysis and rapid judgment and response, is not affected by the machining environment and the shape and size of the workpiece, is accurate in measurement, greatly reduces the influence of the external sensor arrangement distance on the cutting data accuracy, and is suitable for the monitoring of cutting force and vibration and the anti-collision monitoring link in the part machining process, and improves the cutting automation, intelligence and safety level.

The utility model belongs to the technical field of cutters, and discloses an end mill, which is characterized in that bottom blades are distributed on a revolution surface formed by rotation of a 1 / 4 ellipse around a central axis of a cutting part, so that a tool cutting edge angle is gradually and slowly increased in the direction from the center of the end mill to the periphery of the end mill, and one end, connected with a circumferential blade, of each bottom blade can also be used for cutting. And under the same cutting depth, cuttings become thinner and longer, and the thinning cutting effect is better during fast feeding, so that the machining efficiency of difficult-to-machine materials such as titanium alloy and high-temperature alloy is improved. The end, connected with the circumferential edge, of the bottom edge is used for increasing the maximum cutting depth after cutting, and the front angle corresponding to the bottom edge is gradually increased in the radial direction, away from the central axis of the cutting part, of the cutting part, so that the end, close to the circumferential edge, of the bottom edge is sharper, cutting resistance is reduced, cutting force and cutting heat are reduced, and the wear resistance of the cutter is improved; and the service life of the cutter is prolonged.

The utility model relates to the technical field of aluminum alloy door and window machining, in particular to a numerical control end face milling machine for aluminum alloy door and window machining, which comprises a base, a worktable mounted at the top of the base, and a to-be-machined object body placed at the top of the worktable. A positioning plate used for positioning an object body is installed on one side of the workbench, an L-shaped rod used for pushing the object body is installed on the side, away from the positioning plate, of the workbench, first driving assemblies used for driving the workbench to move are installed in the base and the workbench correspondingly, and a clamping assembly used for clamping the object body is installed in the workbench. The numerical control end face milling machine for aluminum alloy door and window machining has the advantages that automatic accurate positioning and efficient clamping are achieved, the cutting work space is optimized, and linkage driving is achieved to reduce energy consumption and cost.

This invention provides a method and system for planning the attitude of a ball-end milling cutter in a five-DOF hybrid robot, comprising: Step S1: acquiring tool information and surface information of the machining component on the ball-end milling cutter, and establishing a local coordinate system for each tool contact point; Step S2: establishing a global path smoothness performance index and an effective tool diameter performance index for the hybrid robot tool; Step S3: based on the tool information, establishing a constrained optimization model with the weighted sum of the global path smoothness performance index and the effective tool diameter performance index as the optimization objective; generating and simplifying the feasible region of the tool axis direction for each tool contact point according to the constraint conditions; Step S4: optimizing the tool axis direction path according to the constraint model and the feasible region of the tool axis direction for each tool contact point, and outputting the machining path of the five-DOF hybrid robot tool. The method and system provided by this invention can maintain a large effective tool diameter and make the effective tool diameter change smoothly, thereby improving machining efficiency.

The invention relates to the technical field of numerical control machining error compensation, and discloses a ball-end milling cutter contour error compensation method and device, a medium and equipment, and the method comprises the steps: obtaining contour error values between actual cutter contours and theoretical cutter contours of a ball-end milling cutter in a plurality of spatial orientations; an original cutter location file generated based on the theoretical cutter contour is obtained, and the original cutter location file comprises cutter location points and cutting contact points; based on the contour error value, a tool contour error compensation model with the normal direction of the cutting contact point as the compensation direction is established; and correcting the cutter location point coordinates of the cutter location points by using the cutter contour error compensation model to generate a compensated cutter location data file. According to the method, point-by-point compensation is carried out in the normal direction of the cutting contact point based on the multi-azimuth actual measurement contour error, and high-precision and space self-adaptive 3D cutter radius compensation is achieved.

This application provides a dynamic tool setting device and method for diamond micro-end milling cutters, relating to the field of precision and ultra-precision machining technology. The method includes the following steps: acquiring a time-series pulse sequence of time-division multiplexing images; and performing tool setting detection on the diamond micro-end milling cutter based on the time-series pulses. This application utilizes the diffraction interference imaging principle of diamond micro-end milling cutters under coaxial laser illumination, employing object-side telecentric vision imaging to ensure a fixed holographic image magnification and microscopic imaging accuracy. By setting the camera trigger acquisition pulse through an external trigger controller via a host computer, the rotating image of the diamond micro-end milling cutter is sampled in a time-division multiplexing manner, achieving full-contour holographic imaging of the diamond micro-end milling cutter under rotating conditions. Simultaneously, by designing a downsampling holographic autofocus algorithm in holographic image processing, the computational load for image holographic reconstruction is reduced, accelerating the tool setting calculation efficiency and providing high-precision tool setting technology support for ultra-precision micro-milling.

The utility model belongs to aluminium -plastic door and window production and processing equipment field relates to a kind of sawing device of improving aluminium -plastic door and window section bar cutting efficiency, including base, upper portal frame ram swing angle cutting device, lower portal frame ram swing angle cutting device, opposed four main shaft end milling device, the upper portal frame ram swing angle cutting device includes upper vertical saw blade, the lower portal frame ram swing angle cutting device includes lower vertical saw blade, and the opposed four main shaft end milling device includes horizontal saw blade. The utility model is provided with the upper vertical saw blade and lower vertical saw blade of independent movement, cooperate with four horizontal saw blade, can be cut off in the mode of completion tenon mouth, so the utility model cutting frequency is less, compared to multiple milling to mill tenon mouth, the working mode efficiency of the utility model is higher.

The present invention relates to a left-hand rotating end mill (1) with a shank (10) and a cutting head (20) having a number of left-hand spiral cutting edges (50) spaced apart from one another by flutes (30), wherein the cutting edges (50) are divided into cutting edge segments (60) at least over a portion of their length by a number of right-hand spiral dividing grooves (40). The cutting head (20) is divided into a shank-side cutting step (22) and an end-side cutting step (24) adjoining the shank-side cutting step (22) via a transition section (23), the end-side cutting step having a smaller cutting diameter than the shank-side cutting step (22).

This invention discloses a method for solving the grinding trajectory of helical grooves in a conical end mill. Specifically, the method involves: first, defining the process characteristics of the helical groove, including modeling the tool's helical cutting edge, defining tool parameters, and modeling the grinding wheel's grinding motion; second, establishing the solution equation for the grinding wheel's pose based on the tool parameters; and finally, using a particle swarm optimization algorithm to solve for the grinding wheel's pose. This invention can be effectively used for machining helical grooves, simultaneously meeting the machining accuracy requirements of the rake angle and core diameter, and providing a theoretical reference for the actual production and machining of cutting tools.

The invention belongs to the field of end mill preparation, and particularly relates to a preparation method of a beta-Si3N4 oriented and orderly-arranged silicon nitride ceramic integral end mill. A horizontal sintering mold is filled with the silicon nitride-based mixed powder, the filled powder is in a long-axis shape in the sintering mold, SPS sintering is carried out, the sintering pressure acts on the long-axis direction of the powder during sintering, beta-Si3N4 crystal grains are directionally arranged in the long-axis direction in the sintering process, and a ceramic matrix with an ordered microstructure is formed; and the ceramic substrate is prepared into a vertical milling cutter, and the high-wear-resistance prismatic surface of the crystal grains is parallel to the main cutting force direction in the cutting process. The method successfully breaks through the size limitation of the integral end mill prepared by traditional SPS, and remarkably improves the tipping resistance and the service life of the silicon nitride ceramic cutter.

The application discloses a kind of flat bottom end face milling cutter tool shaft vector optimization method, tool shaft vector optimization is considered from processing interference, cutting force, rotation axis angular displacement and angular velocity etc. Multiple factors comprehensively. First, the improved space partition tool shaft vector global interference detection method based on surface principle is proposed, whether the interference detection algorithm is used to judge tool to occur processing interference and carry out interference-free tool shaft vector space calculation;Second, the relationship model of end milling cutter tool shaft vector and cutting force change is established, and the tool shaft vector optimization is carried out with the tool cutting force optimization as the target;Third, using Dijkstra algorithm, an optimal path algorithm-based machine tool rotation axis angular displacement and angular velocity optimization model is proposed;Using the optimization algorithm for complex surface machining, the machining quality of the surface workpiece after tool shaft vector optimization is obviously improved compared with that before tool shaft vector optimization.

The invention provides a cross-working-condition online monitoring method for the wear state of an end mill, and the method comprises the steps: excavating the information related to the wear state of a cutter in a periodic life data monitoring signal of the cutting cutter by using the learning time sequence characteristic analysis capability based on a Transform encoder; cooperative training of feature alignment and wear state prediction is realized by using an adversarial migration network (ATN) and a maximum mean difference method (MMD); after training is completed, cutting monitoring signals under different working conditions serve as a target domain input model to conduct end mill abrasion monitoring; according to the invention, end mill wear monitoring can be carried out, and accuracy and real-time performance of end mill wear state prediction can be ensured.

The invention relates to the technical field of grain processing automation equipment, and discloses a device and method for automatic cutting and end face flattening of tubular explosive, the device comprises a rack, a feeding mechanism, a pushing mechanism, a cutting mechanism, a transplanting mechanism and a double-end milling end face mechanism, the rack is arranged on the ground and is used for placing other mechanisms; according to the grain feeding device, the situation that grains are out of order is avoided in the mode that the grains are manually and sequentially discharged to the stock bin and discharged one by one, the grains are limited through the V-shaped groove tool to prevent the grains from falling off, the pushing block is controlled to push materials in the mode of mechanical hard limiting and photoelectric sensor detection, the phenomenon that feeding is not in place is avoided, the stock bin is designed to be of an adjustable structure, and the working efficiency is improved. And meanwhile, an adjustable limiting block is designed on the cutting-off station, the positions of the grains of different types can be adjusted, and the multi-type grain cutting-off device can be suitable for the grains of multiple types through fixation. The cutting saw blade and the milling cutter can be replaced according to grains of different types, and technological parameters can be set to achieve flexibility.

The invention discloses an unequal-plate-thickness dissimilar material equal-strength connecting method which comprises the steps that an integrated step reinforcing lining is machined at the end of a thick plate through mechanical end milling, and the thickness of the lining on the lower portion of a step is larger than or equal to 8 mm; cutting a 35-degree single V-shaped groove at the end part of the thin plate; the thin plate and the thick plate are assembled, and the welding seam gap and the lap joint size are both 1 / 2 of the thickness of the thick plate; and finally, full penetration butt welding seams are welded, and it is ensured that the welding seam strength is not lower than that of high-strength base metal. Through the design of the step reinforcing lining, a traditional transition section is omitted, construction is simplified, meanwhile, gentle transition of the section is achieved through the formed conical welding seam, equal-strength bearing of the welding seam is guaranteed, stress concentration is effectively reduced, and the method is particularly suitable for large complex steel structure joints.

The article to which this design relates is the body of an indexable end mill, a cutting tool. As shown in the reference diagram showing the state of use, the article to which this design relates rotates while the cutting insert is fixed by a fixing member such as a screw, causing the cutting insert to cut the workpiece. The article to which this design relates has a pocket portion that discharges chips during cutting and a seat portion where the cutting insert is installed.

The invention relates to the technical field of milling cutters, and discloses a modular end milling cutter capable of quickly replacing a cutter bit, which comprises a cutter handle, a threaded hole is formed in the bottom of the cutter handle, a threaded butt joint is in threaded connection in the threaded hole, an outer milling cutter is fixedly connected to the bottom of the threaded butt joint, and an air inlet channel is formed in the top of the cutter handle. A threaded channel is formed in the bottom of the outer milling cutter, an air cavity communicating with the threaded channel is formed in the threaded butt joint, a mounting rod is slidably connected into the air cavity, an inner milling cutter is fixedly connected to the bottom of the mounting rod, a sealing box is fixedly connected to the top of the mounting rod, a sealing plate is fixedly connected to the top of the sealing box, and a fixing ring is fixedly connected into the threaded channel. According to the modularized end milling cutter with the cutter head capable of being rapidly replaced, the problem that due to the fact that the cutter head of a traditional milling cutter is of an integral structure, after a groove is milled, a drill bit needs to be replaced, and then punching work can be conducted can be solved.

This invention discloses an adaptive adjustment method for the grinding trajectory of the flank face of an integral arc-head end mill. Specifically, the method involves: First, constructing the cutting edge equations of the peripheral and end edges of the arc-head end mill based on structural feature decomposition, and establishing a parameterized model of the second flank face through uniform offset densification of the cutting edges. Then, based on the established grinding wheel posture model, determining the grinding interference by calculating the grinding contact area between the grinding wheel and the first flank face of the end mill. Finally, an adaptive adjustment algorithm for the grinding wheel grinding trajectory is used to iteratively correct the grinding wheel lift angle and swing angle, avoiding abrupt changes in grinding posture and grinding interference, thus achieving precise grinding of the flank face. This invention effectively avoids abrupt changes in grinding posture and grinding interference, resulting in a smooth and continuous flank face surface with good quality, achieving precise grinding of the flank face.

According to the ball-end milling cutter, in the direction of a preset axis far away from a head part, an end blade comprises a first cutting section, a second cutting section and a third cutting section which are sequentially connected, and when the ball-end milling cutter works, the first cutting section, the second cutting section and the third cutting section are sequentially connected; the linear speed of the first cutting section, the linear speed of the second cutting section and the linear speed of the third cutting section are gradually increased, and the numerical values of the first cutting front angle of the first cutting section, the second cutting front angle of the second cutting section and the third cutting front angle of the third cutting section are gradually increased. Therefore, the strength of the first cutting section, the strength of the second cutting section and the strength of the third cutting section are gradually increased, and on the premise that the third cutting section has higher linear speed relative to the first cutting section and the second cutting section, the third cutting section can also have higher strength relative to the first cutting section and the second cutting section. And therefore, the tipping difficulty of the third cutting section is reduced, the strength of the end edge is improved, and the service life of the ball-end milling cutter is prolonged.

The invention relates to a device and a method for processing a flow channel in a liquid cooling plate, and belongs to the technical field of water cooling plates. The upper portion of a functional portion is in bolt connection with a mandrel, an annular groove is formed in the middle of the functional portion, and a longitudinal welding portion is formed at the bottom of the annular groove; an upper shaft shoulder and a lower shaft shoulder are correspondingly arranged on the upper part and the lower part of the welding part respectively; and an end milling part is arranged at the lower part of the lower shaft shoulder. The runner is excellent in quality, and through the synergistic effect of vertical tooth cutting and spiral pushing, the inner wall of the runner is smooth, the cover face is compact, and welding defects such as air holes and cracks do not exist; and meanwhile, the continuous flushing of the cooling liquid avoids chip residues, the surface roughness of the flow channel is low, and the heat dissipation performance of the liquid cooling plate is remarkably improved.

The invention belongs to the technical field of double-head milling machines, and particularly relates to a self-adaptive double-head milling machine which comprises milling machine equipment, an adapter is mounted in the milling machine equipment, a front-back adaptive mechanism is mounted in the adapter and matched with a workpiece in length, a left-right adaptive mechanism is mounted at the top of the front-back adaptive mechanism, and a left-right adaptive mechanism is mounted at the bottom of the left-right adaptive mechanism. And the left-right adaptive mechanism is adaptive to the width of the workpiece. The distance between the bearing columns in the front-back direction can be adjusted through the front-back adaptation mechanism, the double-head milling machine can adapt to the length of a workpiece, the applicability of equipment is improved, the distance between the bearing columns in the left-right direction can be adjusted through the left-right adaptation mechanism, the double-head milling machine can adapt to the width of the workpiece, and the machining efficiency is improved. And by means of the synergistic effect of the front-back adaptation mechanism and the left-right adaptation mechanism, stable clamping of workpieces with different lengths and widths can be achieved, the clamping assembly does not need to be replaced, the machining range of the equipment is effectively expanded, the operation complexity is reduced, and the applicability is better.

The utility model is suitable for blade edge processing technical field provides a straight handle vertical milling cutter blade edge processing device, including removal and loading component, the removal and loading component's upper portion is provided with processing component, the processing component's upper portion is provided with the milling cutter that waits for processing, removal and loading component includes work bench, the top of work bench is provided with first electric slide rail, first electric slide rail's upper portion is provided with second electric slide rail, second electric slide rail and work bench between pass through support and connect, one side of second electric slide rail is provided with third electric slide rail, through setting rotary table mechanism, first processing mechanism, second processing mechanism, third processing mechanism and first electric slide rail, second electric slide rail, third electric slide rail cooperation, can realize the intelligent processing to the milling cutter electric chuck that clamps in the milling cutter of waiting for processing, has solved the problem that manual operation, hand shaking brings to processing, has improved processing efficiency and processing accuracy.

The utility model relates to the technical field of micro numerical control machining, and discloses a micro numerical control hydraulic drive double-end milling cutter clamping cutter handle which comprises a double-end cutter handle, a drive impeller, a rod milling cutter and a thread milling cutter. The precision error and time consumption caused by secondary clamping and alignment among different devices are avoided, the technological process is reduced, and therefore the machining efficiency is remarkably improved. Meanwhile, due to the fact that the problem of electrode loss in the electric spark machining process is avoided, the machining stability is remarkably improved.

The present application relates to a kind of safety devices for preventing the free falling of steel pipe end milling machine milling clamping body, the device is newly provided with anti-falling mechanism on steel pipe end milling machine, the mechanism is composed of piston type air cylinder β, push-pull plate, connecting seat and support bar and other components, three-way two-position direct-acting electromagnetic valve is used to adjust high-pressure air to control the extension and retraction of piston rod β, piston rod β drives two support bars to slide in guide bushing by connecting seat and push-pull plate, after the completion of steel pipe end face milling operation, drive support bar to extend outward into the inner circle of upper semicircle clamping body, stably hold upper semicircle clamping body to prevent it from falling, safe and reliable;Thus effectively avoid the phenomenon of upper semicircle clamping body falling due to accidental failure or personnel misoperation, ensure the safety of worker maintenance operation.

This application relates to a double-head milling machine for preventing metal shavings accumulation, belonging to the field of metal processing technology. The double-head milling machine includes a machine body, on which a fixture table and two milling mechanisms are mounted. Each milling mechanism is used to mill workpieces on the fixture table. The machine body is characterized by a collection box with an open top at the bottom. Each milling mechanism has a cleaning mechanism on one side, and each cleaning mechanism includes a pouring box, a spiral cleaning frame, and a rotating component. Each pouring box has an open top and one end extends directly above the collection box. Each spiral cleaning frame is rotatably connected to the pouring box, and each rotating component drives the corresponding spiral cleaning frame to rotate, thereby causing the spiral cleaning frame to carry the shavings from the corresponding pouring box into the collection box. This application provides convenient cleaning of metal shavings.