113 results about "Straight segment" patented technology

The invention discloses a super-large broken line glass curtain wall installation method which comprises the following steps: based on curtain wall design parameters, obtaining deformation trends of a curtain wall in different installation stages, and based on the deformation trends, respectively determining deformation control thresholds of a straight line section component and a broken line node component of the curtain wall; adjustable hydraulic supporting tools are arranged in the installation area of the linear segment component and the installation area of the broken line node component respectively, and the adjustable hydraulic supporting tools are used for supporting glass plates of the linear segment component and the broken line node component; and staged installation is carried out according to the time sequence that the linear segment components are installed firstly and then the broken line node components are installed. Deformation trends of different installation stages are obtained in advance based on curtain wall design parameters, differentiated deformation control threshold values are set for the straight line section component and the broken line node component, and refined control over the rigidity sudden change area at the broken line node is achieved; the adjustable hydraulic supporting tool is arranged, and the supporting force is dynamically adjusted through the hydraulic rod.

The utility model discloses a tunnel combined type lining grating steel frame structure which comprises a plurality of first sections and two second sections, the arc-shaped first sections are sequentially connected end to end through first connectors to form an arch structure, and the two second sections are symmetrically arranged. The upper ends of the second sections are connected with the two ends of the arch structure through first connectors, and the lower ends of the two second sections are connected with second connectors. Wherein the central angle opposite to the first section is 30 degrees; the second section is composed of an arc-shaped section and a linear section, the upper end of the arc-shaped section is connected with the first connector, and the lower end of the arc-shaped section is connected with the second connector through the linear section. The construction mode that field assembly is carried out after prefabrication is adopted, the field construction difficulty is effectively reduced, and the construction efficiency is improved.

The utility model provides a sliding block component of a buffering sliding door and a buffering device, and is applied to the technical field of buffering sliding doors, the sliding block component is arranged in a sliding groove of a buffering frame in a sliding mode and connected with a buffering component, the sliding groove comprises a linear section and an arc section, and the sliding block component slides and rotates in the linear section and the arc section; and a connecting part is arranged at the rotating center, rotating in the arc section, of the sliding block part and used for being hinged to the buffering part, so that the buffering sliding door has the beneficial effects of being stable in structure and not prone to deformation.

1. The name of the design product: the side surface of a uniaxial robot. 2. The use of the design product: the uniaxial robot is used for automation equipment, and the side surface of the uniaxial robot serves as one side of the uniaxial robot. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view. 5. Other circumstances that need to be explained: the main protection of the design product is the partial design of the uniaxial robot. The gray part is the part claimed by the partial design, and the claimed design does not include the gray color, but includes the straight line segment green color arranged on the gray part. The blue part is the part not claimed by the partial design.

The application relates to the technical field of motion planning, and discloses a corner fairing method of an asymmetric Airthoid-arc, which comprises the following steps: constructing a tool path fairing curve which is sequentially connected by a first Airthoid curve, an arc and a second Airthoid curve, and is used for fairing a corner formed by adjacent straight line segments; preliminarily setting a first transition length and a second transition length according to the lengths of the line segments on the two sides of the corner; solving the first and second tangent angles according to geometric constraints, tangential continuity, curvature continuity constraints and position continuity constraints; if there is a solution, analytically calculating a current approximate error; and finally analytically calculating the curvature extreme value and the arc length of the fairing curve. The asymmetric curve structure is adopted, the corner space is fully excavated, the curvature extreme value is small, the arc length can be analytically expressed, and the profile error is controllable, so that the numerical control machining efficiency is improved.

The utility model relates to the technical field of chip production, and aims to solve the technical problem that the service life is shortened. In order to solve the technical problem, the utility model provides the diaphragm cylinder with the positioning function. A lower cover is provided with a groove body and a vent hole from top to bottom, and the groove body is communicated with the vent hole; the upper cover is connected to the top of the lower cover, a mounting groove and a sliding groove are formed in the bottom of the upper cover from bottom to top, and the mounting groove communicates with the sliding groove; the top wall of the mounting groove is sunken upwards to form a first groove hole, and a positioning pin is mounted in the first groove hole; the positioning pin is provided with a lower half part extending into the mounting groove, and the lower half part comprises a linear section and a conical section from top to bottom; a piston body of the piston is matched with the mounting groove; the guide part is matched with the sliding groove; a positioning pin hole is formed in the top of the piston body, the lower half part is located in the positioning pin hole, and the linear section is matched with the positioning pin hole and used for achieving positioning. And the diaphragm is hermetically connected between the lower cover and the upper cover. According to the utility model, the service life is prolonged.

An inner curve type PPU robot is characterized by: further comprising a support block, the support block being disposed inside three support bearings, and an oscillating contour surface being formed on the outer side of the support block, the oscillating contour surface comprising two symmetrically arranged C-shaped contour surfaces, the C-shaped contour surface comprising an arc segment and straight segments at both ends of the arc segment, and the distance of the arc segment from the rotation center of the main shaft being greater than the distance of the straight segments from the rotation center of the main shaft; when the oscillating wheel moves, the three support bearings and the oscillating contour surface are always in contact to form a rolling fit, and the oscillating wheel drives the linkage shaft to move along the C-shaped trajectory. Its advantages are: 1. The support block is set inside the three support bearings. Compared with the cycloidal frame in the prior art, the outer curved surface is changed to the inner curved surface, making the structure more compact and reasonable, and greatly reducing the volume; 2. The C-shaped contour surface includes an arc segment and two straight segments. Compared with the rounded square trajectory in the prior art, the movement of the swing wheel will be more continuous; 3. The support bearing has a higher speed and greater torque when passing through the straight segment, which reduces the influence of gravity and makes the movement more stable. The support bearing has a lower speed and faster speed when passing through the arc segment, which increases the running speed and makes the movement more rapid.

The present application relates to the technical field of numerical control machining.A three-axis linkage operation method capable of self-adapting to realize arbitrary orientation movement includes the following steps: the whole process is virtually three straight line movements: ABE, EF and FCD, and the velocities, accelerations and the like of each endpoint A, E, F and D are all 0, the BE segment is pure deceleration movement, FC is pure acceleration movement, and they perform superimposed movement with EF in different time periods, so that the intermediate "frogs' leap" curve is obtained AB +t EF +t CD . Wherein A, B, C and D are four fixed points initially set according to machining requirements, A and D are respectively start and end points, AB and CD are respectively linear segments with limited trajectories, and E and F are respectively points on the extension lines of the linear segments AB and DC. The technical scheme of the present application realizes the shortest whole process movement time of the movement target, has no large corner in the movement process, has no frequent deceleration processing, and has short operation time.

The application relates to the technical field of cutting tools, in particular to a cutting blade and a cutting tool. The cutting blade comprises a central shank and a cutting head; the cutting head comprises a rake face, a relief face, a bottom face and a chip breaking structure located on the rake face; a cutting edge formed by the rake face and the relief face comprises two edge straight line segments formed by a first rake face and the relief face, two first edge circular arc segments formed by a first circular arc transition face and the relief face and a second edge circular arc segment formed by a second rake face and the relief face; when viewed along the length direction of the central shank towards the relief face, the middle part of the second edge circular arc segment is concave downwards, and the two sides are connected to the edge straight line segments upwards through the first edge circular arc segments. The cutting edge of the application is concave in the overall shape, effectively reduces the cutting resistance during cutting processing, thereby inhibiting the vibration between the cutting edge and the workpiece and improving the machining precision. The cutting blade has certain edge strength while ensuring the sharpness of the edge.

A staple includes a crown section including a first curve, a second curve, a third curve, a first straight segment extending between the first curve and the second curve, and a second straight segment extending between the first curve and the third curve. The second curve and the third curve define, respectively, opposite ends of the crown section. The staple includes a pair of leg sections extending from the opposite ends of the crown section.

The invention discloses an overturning tool assembly and method for ultra-large disc parts. The turnover tool assembly comprises a turnover transfer tool, a transfer hook and a temporary storage part; the turnover transfer tool comprises a bottom plate, the bottom plate is provided with a fixing assembly used for fixing parts from the middle and / or the edge, the periphery of the bottom plate is provided with a plurality of supporting legs, the supporting legs are located on the hoisting side and the turnover side respectively, the supporting legs on the hoisting side are provided with hanging rings, the supporting legs on the turnover side are provided with arc-shaped edges facing the turnover side, and the arc-shaped edges face the periphery of the bottom plate. And a linear section is arranged in the middle of the arc-shaped edge and is perpendicular to the bottom plate. The problems that parts are difficult to fix and blades are prone to deformation are solved, and damage to the blades by external force is avoided through accurate positioning and stable clamping; the overturning resistance is reduced through the overturning side arc-shaped supporting legs, the gravity center in the overturning process is effectively balanced in cooperation with the reasonable position design of the hoisting side lifting ring, and the potential safety hazard that inertia instant overturning or manual intervention is needed due to gravity center shifting is avoided.

The utility model discloses a space avoidance hinge in the hardware technical field, including door frame, door board and hinge module, the door board is assembled in the door frame inside through the hinge module with axial connection mode, the hinge module contains mirror image symmetry's upper hinge group, lower hinge group, in the upper hinge group, the integrative first upper hinge processes the inside, outside limit guide rail that is parallel to each other, and two movable bearings of second upper hinge installation are accurate adaptation with it, and the bottom of door frame is equipped with the adaptation sink groove, and forms double positioning with the outside limit guide rail, through such structural design, can firm connection door board and door frame and accurate guidance door board movement, when door board opening, first along the guide rail straight line section smooth translation, and then along the arc segment smooth rotation to 90 degrees, make door board thickness completely hide, this design not only has promoted the space utilization, also satisfies the strict requirement of high sealing place, has improved the defect of traditional hinge in space utilization and sealing performance greatly.

The present application relates to the technical field of sealing strip rubber sleeve conveying, and discloses a sealing strip rubber sleeve conveying device and a conveying method, the conveying device comprising: a rubber sleeve conveying belt, the rubber sleeve conveying belt comprising: a plurality of straight line segments, in polygonal distribution. The present application places a plurality of rubber sleeves on the first straight line segment in sequence, so that the plurality of rubber sleeves are conveyed along the plurality of straight line segments and the plurality of arc-shaped segments, and finally the plurality of rubber sleeves are arranged on the plurality of straight line segments respectively; since the plurality of straight line segments and the plurality of arc-shaped segments form a rotary structure, the corners of the plurality of rubber sleeves can be all directed towards the center of the rotary structure. The rotary structure can change the direction of the corners of the rubber sleeves, and no additional reversing line body is needed; the conveying device is highly integrated, occupies a small area, and greatly reduces the investment cost required by the device.

The invention relates to the technical field of metal processing and mechanical manufacturing, and discloses a pipe cutting device for frame production, which comprises a table top, a support rod I, a support rod II, a cutting knife, a reciprocating transportation mechanism and a rotary cutting mechanism, and is characterized in that the reciprocating transportation mechanism is arranged to synthesize composite motion with a specific time sequence, so that the cutting efficiency is improved; horizontal feeding and vertical jacking and falling actions are fused in a compact cycle; when the small gear rolls along the straight line section of the circular gear column, accurate horizontal pushing of the pipe material is achieved, and the accuracy of fixed-length feeding is ensured; when moving to the arc-shaped sections at the two ends of the special-shaped sliding groove, the combined gear mechanism triggers the vertical displacement of the whole combined gear mechanism, the upper supporting plate is jacked up or put down through the long rod, grabbing and releasing of pipes are completed, an independent lifting driving element can be omitted, and more importantly, strict synchronism and high repeated positioning accuracy of the feeding process and the cutting action are guaranteed; and the cutting length error and the equipment clamping stagnation risk caused by unstable feeding are fundamentally overcome.

The application relates to a high-continuity appearance surface processing technology and device, and belongs to the technical field of surface processing, and comprises the following contents: S1: curvature distribution data of a charging port cover edge is acquired in real time through three-dimensional laser scanning, and a partition geometry model containing a straight line segment, a small fillet segment and a large fillet segment is established; S2: based on the curvature distribution data, polishing assembly is adjusted to adaptively adjust polishing areas of the straight line segment, the small fillet segment and the large fillet; S3: based on the partition geometry model, the polishing assembly is adjusted to polish the straight line segment, the small fillet segment and the large fillet segment in sequence, through a curvature-adaptive dynamic processing system, a technical bottleneck of traditional fixed-parameter polishing is broken, high precision of a complex curvature surface is realized, and the high-continuity appearance surface requirement of the charging port cover can be guaranteed.

According to the long-term storage transverse folding and unfolding rudder sheet mechanism and the unfolding method, the design of the transverse folding and unfolding rudder sheet mechanism is provided, transverse initial stable locking of a rudder sheet is achieved through a front linear section of a cam, unfolding of the rudder sheet is achieved through an actuator cylinder, a push rod, a cam curve and the rudder sheet, and locking of the tail position of the rudder sheet is achieved through a rear linear section of the cam after the rudder sheet is in place; the long-term storage reliability is guaranteed by taking gunpowder as driving energy, and the flight process is stable and reliable by the mechanism. The structure is simple and reliable, and implementation is convenient.

The present invention relates to a tibial liner. The tibial liner includes a medial articular surface and a lateral articular surface. The cross-sectional line formed by the intersection of the medial articular surface and a first sagittal plane includes a first arc, a first straight line segment, and a second arc connected in sequence. The radius of curvature of the first arc is greater than or equal to the radius of curvature of the second arc. The cross-sectional line formed by the intersection of the lateral articular surface and the second sagittal plane includes a fourth arc, a second straight line segment, and a fifth arc connected in sequence. The radius of curvature of the fourth arc is greater than or equal to the radius of curvature of the fifth arc. The tibial liner has good stability.

The present invention relates to a method for detecting the height and width of a circumferential weld of a straight segment of a pipeline, comprising the following steps: obtaining point clouds of the pipeline weld and the straight segments before and after the weld; fitting small cylinders segment by segment with the weld design width as a step size; iteratively fusing adjacent cylindrical segments with similar radii to separate the straight segment and the weld rough positioning segment; calculating the distance from the weld rough positioning segment point cloud to the straight segment cylinder axis to obtain the precise positioning of the weld; calculating the difference between the maximum distance from the weld point cloud to the pipeline axis and the pipeline radius to obtain the weld height; projecting the weld point cloud onto the pipeline axis to obtain a new projected point cloud, calculating the maximum distance between the points in the projected point cloud to obtain the weld width. The present invention can detect the height and width of the circumferential weld of a straight segment pipeline weld, providing a new method for automated detection of the height and width of the circumferential weld of a straight segment pipeline.

The invention relates to a retaining device (201) comprising a base (202) having at least one retaining pattern (M) comprising at least two retaining zones (207, 207a, 207b, 207c, 207d, 207e, 207f), each provided with retaining elements (205), the retaining pattern being delimited by two opposite longitudinal edges (212a, 212b), the two retaining zones being arranged in such a way that any straight segment (L) extending in a second direction (Y) from a first longitudinal end edge (209a) to a second longitudinal end edge (209b) crosses at least one of the two retaining zones, the base comprising at least one zone without retaining elements (208, 213a, 213b) and having at least one transverse portion (208) extending continuously on the first face (203) of the base (202) from a first longitudinal edge (212a) to a second longitudinal edge (212b) of the retaining pattern.

The cutting tool includes a substrate and a coating disposed on the substrate, the coating including a first layer, the first layer being made of α-Al2O3, and having a thickness of 2 μm or more and 15 μm or less, and in a cross section taken along a normal to an interface between the substrate and the coating, the first layer includes a plurality of grain boundaries connecting an interface of the first layer close to the substrate and an interface of the first layer close to a surface of the first layer or a surface of the coating, and at least one of the grain boundaries, the first grain boundary, has a plurality of straight line segments and three or more bending points connecting two adjacent straight line segments, and in the first grain boundary, a front edge of the first layer close to the substrate is bent. a crossing angle A1 at the bend point closest to the interface and a crossing angle A2 next closest to the bend point are each 120° or more and less than 180°; at the first grain boundary, a crossing angle A4 at the bend point closest to the interface close to the surface of the first layer or the surface of the coating of the first layer and a crossing angle A3 next closest to the bend point are each 90° or more and 150° or less; at the first grain boundary, an average X1 of the crossing angles A1 and A2 and an average X2 of the crossing angles A3 and A4 satisfy the relationship of Formula 1; and a ratio N2 / N1 of the number N2 of the first grain boundaries to the number N1 of the grain boundaries is 0.2 or more.

The utility model relates to a system for preventing deviation of strip steel, which comprises spindle rollers which are arranged at wrap angle positions of a unit and the strip steel and used for deviation correction of the strip steel of the unit. The middle of the spindle roller adopts a flat roller body, the two sides of the spindle roller symmetrically adopt roller shapes composed of linear sections, and one ends of the linear sections are connected with the middle flat roller body. The device has the advantages that the spindle rollers can be arranged on all the rollers which can form a certain wrap angle with the strip steel in the unit, the strip steel can be automatically rectified by utilizing the wrap angle and the tensioning force of the strip steel and the rollers, a photoelectric detection and hydraulic rectifying system is not needed, the production and operation cost is saved, and the equipment maintenance amount is reduced; the spindle-shaped roller adopts a structure that a middle flat roller body is combined with a linear section, so that the phenomenon that the middle of the strip steel is stretched out of other parts in the width direction due to the action of unit tension in the running process of the strip steel because the convexity of the middle part of the roller is concentrated at one point is avoided.

A variable diameter reaming drill device includes a drill bit body, toothed arms, and a connecting rod. The drill bit body has multiple radially arranged mounting holes at hinge positions corresponding to each toothed arm. The upper end of each toothed arm is detachably mounted to the drill bit body via a pin inserted into one of the mounting holes, and the lower end is supported on the drill bit body via the connecting rod. Both ends of the connecting rod are detachably mounted to both the toothed arms and the drill bit body. The connecting rod has multiple different lengths depending on the radial position of the mounting holes. When adjusting the reaming diameter, the length of the connecting rod and the position of the corresponding mounting holes are changed simultaneously, ensuring that the straight segment of the toothed arm maintains its initial angle with the inner wall of the borehole after the diameter adjustment. Using this device, variable diameter reaming can be achieved without changing the toothed arms, simply by adjusting the position of the toothed arms and the length of the connecting rod, while ensuring that the straight segment of the toothed arm maintains its initial angle with the inner wall of the borehole after the diameter adjustment, thereby reducing the overall construction cost.

This invention discloses a flexible shell deformable skin for folding wings, relating to the field of flexible structure design for variator aircraft. The invention involves cutting an airfoil profile into a thin, elastic plate, hollowing out the middle section, and leaving an annular structure with equal upper and lower edges. This annular structure includes a leading edge, trailing edge, upper edge, and lower edge of the airfoil; the upper and lower edges are strip-shaped structures; the upper and lower edges are wavy in the direction perpendicular to the plate surface, forming a wave pattern along the length consisting of several straight segments – crests – straight segments – troughs – straight segments. This flexible shell deformable skin can be used for folding wings, replacing the skin structure near the folding axis. It solves the problem of continuous and smooth surface deformation under large wing skin deformation, possesses load-bearing capacity, strong design flexibility, and is easy to manufacture.

The utility model discloses a V-shaped ring mould which comprises an upper mould, an upper mould core and a lower mould, the parting positions of the upper mould and the lower mould are on an inclined plane, the parting positions of the upper mould and the lower mould are respectively provided with a straight line section, the straight line section of the upper mould is a transverse line, and the straight line section of the lower mould is a vertical line. And the rubber can be prevented from being damaged and scratched due to excessive extrusion in the mold opening process of the sealing ring.

The invention discloses a combined coil framework with a circular arc and straight line section, and belongs to the technical field of electromagnetic coil manufacturing. The framework is suitable for all structures with the sections combined by arc sections and straight line sections, and the improved scheme that an original straight line section is replaced by a large arc structure is adopted for solving the problems that when a traditional framework is wound, the straight line sections lose support, and the curvature of a transition area changes suddenly, and consequently a winding material is loose and hollow is adopted; the framework still keeps the original approximate form, and through continuous supporting of the arc end-large arc connecting structure, it is guaranteed that winding materials (superconducting tapes, copper wires and the like) are tightly attached in the whole process, and the problems of looseness and cavities are thoroughly solved. According to the design, the electromagnetic performance, the mechanical stability and the heat dissipation effect of the coil can be improved, existing winding equipment and technology do not need to be changed, various framework types and winding materials are adapted, practicability is high, and popularization is convenient.

This invention discloses a current transformer that can be replaced while energized, relating to the field of current transformer technology. It includes two arc-shaped mating units, which are slidably engaged along a preset path via a sliding structure. The preset path includes a connected arc-shaped segment along the circumference of the housing and a straight segment along the axial direction of the housing. During the sliding process between the two mating units, they sequentially exhibit: a fully overlapping state with axial height difference, a misaligned state with axial height difference and complete separation, and a mating state where they are connected to form a circular structure. A locking element is used to lock the two mating units in the overlapping state. A trigger element, when pressed by the conductor under test, triggers the locking element to unlock. The release of elastic force by the elastic component drives the two mating units to switch from the overlapping state to the misaligned state and then to the mating state. This invention can automatically be fitted onto the conductor under test simply by touching it, making operation very convenient and with a high safety factor.

The utility model discloses a screw taking-out device, which belongs to the technical field of aeronautical manufacturing and maintenance and comprises a sleeve, a locking ring, a cylindrical rolling shaft and the like, the cross section of an inner hole of the sleeve is a triangle-like shape formed by connecting three linear sections and three arc sections at intervals, the locking ring is provided with three strip-shaped cylindrical rolling grooves, and the cylindrical rolling shaft is arranged in the cylindrical rolling grooves. And the two are combined and then placed and limited in the inner hole of the sleeve. During use, the screw rod is inserted among the three cylindrical rolling shafts in the locking ring, the outer sides of the cylindrical rolling shafts are adjacent to the arc section of the inner hole in a non-extrusion state, the sleeve is rotated, the cylindrical rolling shafts slide to the linear section of the inner hole under the friction force action of threads of the screw rod, the screw rod is clamped by the cylindrical rolling shafts, and the sleeve is continuously rotated to screw out the screw rod. When the screw rod is disassembled, torque applied to the screw rod acts on the axis of the screw rod, the screw rod is prevented from being broken in the rotating and taking-out process, the quality of a product fastened by a bolt is guaranteed, and meanwhile the disassembling work efficiency is not affected.

This invention relates to an indirect measurement method for the internal fit dimensions of a positively overlapping slide valve. The method includes the following steps: S1, conducting an experiment using a testing bench to obtain the static pressure characteristic curve of the slide valve; S2, obtaining the four axial positive overlap amounts of the slide valve based on the values ​​of four points on the straight segment of the static pressure characteristic curve; S3, obtaining the resulting radial clearance amount of the slide valve through an iterative method based on the value of one point on the non-straight segment of the static pressure characteristic curve, and obtaining the internal fit dimensions of the slide valve based on the radial clearance amount and the axial positive overlap amount. Compared with the prior art, this invention can predict and control the internal fit dimension chain of a positively overlapping slide valve based on the performance of the slide valve, improving the measurement efficiency in the slide valve manufacturing process.

The invention discloses an extensible constellation construction method and system and a signal transmission method, and belongs to the technical field of communication. The extensible constellation construction method comprises the following steps: taking two parallel straight line segments in a three-dimensional space as geometric basic units; rotating one straight line segment in the geometric basic unit to be perpendicular to the other straight line segment in the horizontal plane, and compressing the distance between the two straight line segments in the geometric basic unit in the vertical plane to obtain a parallel cross geometric structure; generating a candidate constellation point set on a constellation basic skeleton by taking the parallel cross geometric structure as the constellation basic skeleton; screening the candidate constellation point set according to a preset minimum Euclidean distance to obtain a constellation point set; and generating an extensible constellation diagram according to the constellation point set. According to the method, on the premise of strictly guaranteeing the minimum distance, unified construction of multi-order constellations under the same process is achieved, the symbol energy utilization rate and CFM are remarkably improved, and meanwhile design efficiency and result reproducibility are considered.

The invention discloses a tool cutting edge angle planning method for a five-axis machine tool, which belongs to the technical field of numerical control machine tools and comprises the following steps: S1, setting a machining coordinate system, and designing a tool path of a profile curve of a part; s2, starting from the position of the trigger instruction for calculating the angle planning of the cutting edge of the cutter, segmenting the curve point into N straight line segments according to the curve point; s3, setting a tool setting direction; s4, calculating the cutting edge angle of the cutter; s5, determining an actual cutter cutting edge angle, and completing cutter cutting edge angle adjustment through a main shaft positioning instruction of the machine tool; s6, at the position of the trigger instruction for finishing calculation of the cutting edge angle planning of the cutter, finishing angle planning, and moving according to a five-axis linkage mode; and S7, the steps from S1 to S6 are repeated, and machining of all contours of the whole part is completed. When the five-axis machine tool is used for machining a complex curve contour, the cutting edge of the cutter always faces the advancing direction of the cutter, and the contour machining quality of parts is improved.