40 results about "Cutting cycle" patented technology

The invention discloses a milling stability domain prediction method under multi-modal coupling to solve a technical problem that the efficiency of an existing milling stability domain prediction method is low. The technical scheme is that firstly the transmission function of a process system is determined through a modal test experiment, then modal parameters are extracted from the transmission function and two orthogonal direction modal parameters are paired and combined, a milling test is carried out to calibrate a milling force coefficient, based on the milling force coefficient and each scale of modal parameters, an improved semi discrete method is employed to obtain a stability lobe diagram under each scale of modals, and finally lobe diagrams under obtained from each scale of modals are drawn in a same coordinate system to obtain a stable domain under multi modal coupling. Through a test, when a cutting cycle is divided into 40 sections, 80 sections and 120 sections, compared with a background technology method, the method can save time for 4949.6 seconds, 74200.4 seconds and 344699.5 seconds, and the efficiency is increased by 85.9%, 92% and 88.5%.

An improved method of operating a vitrectomy probe is disclosed in which the amount of time that the probe port is open during each cut cycle of the probe is fixed and minimized over all cut rates of the probe.

The invention relates to the technical field of afforestation, in particular to a stump reserving bud afforestation method for cutting a poplar industry raw material forest. The stump reserving bud afforestation method comprises a first step of cutting poplars in the poplar industry raw material forest before sap flows in spring, reserving stumps, and enabling the tops of the stumps to be higher than the ground; a second step of enabling the soil to be covered on the stumps, and enabling the thickness of the covering soil to be higher than the tops of the stumps; a third step of instantly irrigating the poplar industry raw material forest where the soil is covered; a fourth step of performing intertillage on the poplar industry raw material forest undergoing natural reforestation; and a fifth step of enabling the growth height of buds of the stumps to be 8cm to 10cm. According to the stump reserving bud afforestation method, the complex afforestation process of digging original stumps, flattening land, digging planting holes, purchasing seedlings and planting is not required, the afforestation cost is reduced, the tree nutrition absorption area is large by reserving huge root systems of the original trees, growth of the trees is accelerated after the renewed trees grow normally, the cutting cycle is shortened simultaneously, and production benefit is greatly improved.

The present invention provides an online aluminum wheel burr removing machine which includes a roller bed device (1), a positioning and rotating device (2) and a knife box device (3). A wheel (4) is conveyed to a specified position by the roller bed device (1), the positioning and rotating mechanism (2) clamps and rotates the wheel (4), the knife box device (3) horizontally feeds to cut burrs of the wheel (4), the roller bed device (1) conveys the wheel to next station, meanwhile, next wheel enters the roller bed device (1), and next cutting cycle is carried out. The machining time of the present invention is 25-30 seconds, so that the manpower cost is reduced, the machining efficiency is improved, and positive effects are achieved in hub burr removal.

A numerical controller controlling a machine tool calculates a number of incisions to a thread on the basis of an incision start position in a feed axis direction and an incision start position in a direction of an incision axis of a thread which are measured in a state in which a workpiece (a thread in the process of machining) is attached to a chuck of the machine tool, calculates an amount of phase deviation of a screw thread caused by reattachment of the workpiece on the basis of the calculated number of incisions, and re-machines the thread by positioning the workpiece and the tool while taking into consideration of the amount of phase deviation.

The invention discloses a coal cutting method with multiple demonstration knifes, which comprises: the step (1): a coal cutter carries out coal cutting for the coal mining working face with the first i demonstration knife, wherein, i=1, 2,...m, and the coal cutter adjusts the cutting position and cutting direction according to the top and the bottom of the coal mining working surface; step (2): if the coal cutting locus of the coal cutter does not contact the top or bottom of the coal mining working surface, the coal cutting track of the ith demonstration knife is obtained, and if the coal cutting track of the coal cutter contacts the top or bottom of the coal mining working surface, the step (1) is repeated; the step (3): the step (1) and the step (2) are repeated, and the coal cutting tracks of the i+1-n demonstration knife of the coal cutter are obtained, wherein the n>m; the step (4): the coal cutter uses the coal cutting tracks of the i-n demonstration knifes as a memory coal cutting cycle, and carries automatically circulated coal cutting on the coal mining working face. The method provided by the invention carries out memory coal cutting by multiple demonstration knifes, thereby effectively reducing the influence on memory coal cutting caused by single demonstration knife, and minimizing cutting of rocks at the coal mining working face bottom, improving the coal cutting effect, and improving the coal cutting stability.

The invention discloses a coalcutter coal rock distribution recognition device and method adopting terahertz imaging technology. The device comprises a terahertz imaging coal rock recognition sensor, a processor, a heightening oil cylinder, a heightening roller and an alarm device; set cutting state parameters of the roller at each cutting position are stored in the processor; the terahertz imaging coal rock recognition sensor recognizes the coal rock distribution condition of a coalcutter at each cutting position in the next cutting cycle and outputs a recognition result to the processor; the processor processes and stores the recognition result according to a coal rock distribution recognition method, and a storage result serves as a basis at the processor outputs a signal to the heightening oil cylinder, the heightening roller or the alarm device at the corresponding position in the next cutting cycle. The coal rock distribution condition in the next cutting cycle is recognized in advance, a roller height is determined in advance and cutting into rock is avoided. A defect that only after roller cutting teeth cut into the rock, the rock cutting can be recognized under a memory coal rock cutting interface recognition technology is overcome.

The present invention relates to a rapid propagation method of poplar with red leaves in the coastal area. The method comprises nursery selection, nursery arrangement, cutting cutting production, cutting, and post-planting management; the cutting cutting production includes the following steps: in February to March, Choose hard branches with a diameter of 1-2cm, soak the branches in clean water for 3 days before cutting, change the water once a day, after soaking, cut into cuttings with a length of 10-15cm each, with 3-4 buds per section , the upper incision is 1-1.5cm away from the top bud, and the lower incision is 0.5-1cm away from the bottom bud, all of which are cut flat with sharp scissors without leaving any splitting wounds; the prepared cuttings are used with a concentration of 100-200mg/g Soak in naphthalene acetic acid solution for 12-24 hours. According to the method of the present invention to propagate the red leaf poplar, on the one hand, the emergence rate of the cuttings can be guaranteed, and the emergence rate can reach more than 90%;

The invention discloses a method for machining soft aluminum part threads through turning. The method comprises the following steps that a cooling liquid with relatively strong viscosity is selected;a thread blade with the thread pitch larger by 1 grade is selected to replace a thread blade with the thread pitch required by normal machining; a lateral cutter feeding mode is adopted, and the tooth-shaped angle, which is smaller than a rear angle, of the blade is fed for machining; the cutting parameters comprise the following parameters of the thread single-cycle back cutting depth ap being 0.05mm-0.07mm and the linear speed Vc being 55-60rpm; a G76 multi-thread cutting cycle instruction is adopted for thread machining; and the size of the top diameter polish rod of the soft aluminum partthreads is machined in place during thread machining, and the allowance is not reserved. According to the method, the cooling liquid, the blade, the programming mode and the cutting parameters are reasonably selected, so that the whole machining process system for machining the soft aluminum part threads through turning is optimized, the problem of thread rotting of the machined threads of a softaluminum part is effectively solved, and the product quality is guaranteed.

The invention discloses a semi-automatic foreign matter removing method of a laser foreign matter removing device. The method includes that a visual sensor collects and a displayer displays current image information; a control system performs image recognition to acquire foreign matter point winding information, resolves the same, converts the information into angular coordinates and sends an instruction to a turntable to enable to same to rotate to track a foreign matter winding point; according to information input into the device, entering of a cutting mode is realized; the control system calculates out a corresponding turntable instruction according to a cutting cycle index and cutting speed instruction which are received and clicks a starting point and an end point of a cutting path,and the control system calculates to acquire angle information according to pixel information of the starting point and the end point and calculates out a turntable instruction corresponding to each time moment; a laser part emits laser, and the control system sends corresponding angle instructions to the turntable and controls the turntable to drive the laser part to rotate to complete cutting task. The position of the target is displayed through the visual sensor, and the laser foreign matter removing device is controlled through a user end on the basis of automatic tracking, so that adaptability of the device to complex foreign matters is improved, and cutting efficiency is improved.

The invention relates to the big data field and discloses a modeling method for rapidly generating a flight load analysis model. The method includes the following steps of 1 arranging cutting surfacesin two directions of each component by taking each component of an aircraft as a unit, and forming a discrete small curved surface after the cutting cycle operation; 2 performing the same operation on each discrete small surface by using the MATLAB program: obtaining the normals of the discrete small surfaces, and obtaining the geometrical and physical attributes of the discrete small surfaces ofthe face center, the normal vector and the small block area according to the normals; 3, taking all that components of the aircraft as units, discretely cutting all the components of the aircraft, obtaining the face center, the normal vector and the small block area attributes of all the components, and reasonably ordering and establishing a flight load analysis model. The technical proposal of the invention establishes the discrete model with reasonable and moderate mesh quantity, remarkably improves the modeling speed of the flight load analysis model through the cycle of the program, and lays a good foundation for the subsequent flight load analysis and design work.

A method of operating a side trim or slitting shear to shear a full length of a material (10) to be sheared is described. The full length comprises a plurality of cutting lengths and the shear comprises a first blade (6) and a second blade (7). The methodcomprises determining parameters of a material to be sheared and storing the determined parameters. In one cutting cycle, the method comprises cutting a single cutting length (14) of the material; carrying out a series of cutting cycles to cut the full length of the material; and in a control system at least once in the series of cutting cycles using the determined parameters to control adjustment of the gap (H) between the first and second blades in a cutting phase in a cutting cycle. The angle between the blades may also be adjusted 

The invention discloses a cutting seedling method of osmanthus fragrans. The method comprises operation steps as follows: (1) an excellent plant which grows vigorously and is not damaged by diseases or insects is taken as a mother tree for cutting, and one-year-old half-lignified twigs at the upper part of the periphery of a tree crown of the excellent plant are sheared to serve as cuttings; (2) the base parts of the cuttings are cut into planes and uniformly coated with a yellow gelatin nutritional solution; (3) the cuttings coated with the yellow gelatin nutritional solution are put in a greenhouse at the temperature of 23-27 DEG C and irritated by purple light, and the cuttings are taken out after 4-5 days; (4) the nutritional solution at the base parts of the cuttings are washed clean and a rooting liquid is uniformly sprayed to the base parts of the cuttings; (5) the cuttings with the rooting liquid sprayed are perpendicularly inserted into a seedling bed and watered thoroughly, and other seedling bed management work is done. By means of the cutting seedling method of osmanthus fragrans, the rooting rate of the cuttings of the osmanthus fragrans and the survival rate of seedlings can be effectively increased, the rooting speed of the cuttings is increased, the cutting cycle is shortened, damage of diseases and insects to the cuttings can be reduced, and the quality of the seedlings of the osmanthus fragrans is improved.

The invention provides a method for automatically adjusting the cutter angle of a transverse cutting machine and the transverse cutting machine. The method for automatically adjusting the cutter angleof the transverse cutting machine comprises the steps that when that the transverse cutting machine works normally by sensing color codes is determined, the cutter angle is adjusted, and normal cutting is achieved; when two adjacent color codes are sensed, a first angle Deg1 and a second angle Deg2 which are stored are not within the range of [ D - mu, D + mu ], and if the absolute value of Deg2-Deg1 is smaller than or equal to mu, the maximum angle adjustment amount which can be conducted by a cutter within a cutting period on the basis of position synchronization is adjusted according to the maximum rotating speed and the maximum torque of a motor; and if the absolute value of Deg2-Deg1 is smaller than mu, the value of Deg1 is modified, Deg1= Deg2, subsequent color codes continue to besensed, and the operation is repeated. According to the method for automatically adjusting the cutter angle of the transverse cutting machine and the transverse cutting machine, the cutter angle of the transverse cutting machine can be automatically adjusted according to the maximum adjustment capacity of the motor, the production speed does not need to be decreased, the production efficiency canbe improved, and meanwhile the workload of operators is relieved.

The invention relates to the technical field of industrial equipment and discloses LED light bar aluminum substrate splitting equipment. The equipment comprises a box and an air pump, a fixed platformis fixedly installed at the top of an inner cavity of the box, a right conveying device is movably installed on the right side of the fixed platform, a left conveying device is movably installed on the left side of the fixed platform, the right conveying device is movably connected with the inner wall of the box, and the left conveying device is movably connected with the inner wall of the box. The right conveying device, the left conveying device and a cutting device are arranged; therefore, a cutting cycle of LED light bar aluminum substrates is formed; automatic cutting is achieved, manualintervention is reduced, manual use is reduced, the labor cost is reduced, the idling time of a front cutting knife wheel is shortened when the LED light bar aluminum substrates are returned manually, energy waste is reduced, the cutting cost is reduced, meanwhile, two aluminum substrates are cut at the same time, and the cutting efficiency of LED light bars is improved.