989results about How to "Expand the scope of processing" patented technology

The invention relates to a method for adopting an industrial robot to carry out the ordinary sand mold milling processing, which pertains to the filed of the cross technology of casting, numeric control processing and the industrial robot. The steps of the method of the invention are that: a tool and a planned milling path are selected according to the shape of a sand mold to be processed, the generated NC code is translated into a control code of the robot according to a motion model of the industrial robot, thus realizing the gesture control of the robot during the processing process, carrying out the milling of a sand lump and finally carrying out the post-processing of the sand lump after the processing. Compared with the existing traditional casting mold processing method, the processing method of the invention can save the manufacturing link of the mold, reduce the processing procedure, shorten the production period and reduce the production cost; compared with the machine tool-based sand mold milling processing method, the processing method of the invention has larger processing range and higher processing flexibility, in particular to a motion guide track without the need of carrying out the strict sand control protection. The method of the invention is especially applicable to the single and small-batch processing and manufacturing of the large-scale sand mold.

The invention discloses a design and manufacturing method of a porous grid structure material and aims to solve the problems of blindness and uncertainty in traditional manufacturing of a porous material and apply an effective design concept for the porous material to practical manufacturing. The design and manufacturing method comprises the following steps: obtaining a data image based on topological optimization simulation; performing three-dimensional rebuilding on the data image on Solid Works; importing to magics software as a unit grid structure; filling into various three-dimensional models of specific parts which need to adopt the grid structure at any size ratio; afterwards manufacturing the parts. According to the design and manufacturing method, firstly, the three-dimensional model of each part is imported to a computer on a worktable; the printing angle and the printing position are set according to the three-dimensional graph structure; a powder layer is sintered into a corresponding two-dimensional shape on the layer; powder with the same thickness is repeatedly laid on the worktable on which one layer of graph is sintered; laser scanning is still performed according to the scanning route of the layer until the overall three-dimensional graph is completed. The design and manufacturing method disclosed by the invention has the advantages of reducing the elasticity modulus of the part and realizing good mechanical properties.

The invention discloses a liquid nitrogen inner spraying type numerical control drilling and milling machine main shaft device, belongs to the field of numerical control machine tool main shaft design and relates to a numerical control drilling and milling machine main shaft device. According to the numerical control drilling and milling machine main shaft device, liquid nitrogen flows in an inner cavity of a main shaft to positions near a hollow cutter cutting edge and is sprayed out through thin holes, and therefore copious cooling and low temperature cutting are achieved. The liquid nitrogen inner spraying type main shaft device is composed of a main shaft assembly, a liquid nitrogen heat insulation pipe assembly and a rivet assembly. A main shaft in the main shaft assembly is in a hollow shape, two bearings in the liquid nitrogen heat insulating pipe are arranged on two bearing adapter sleeves respectively in a sleeved mode, and two clamp nuts are screwed to conical face external threads of the two bearing adapter sleeves respectively. Two bevel gears in the rivet assembly are symmetrically installed in two outer round holes of a cutter connection frame, and rotation and limiting of axial moving are achieved through inner groove balls. A vacuum heat insulating hard pipe is composed of an inner steel pipe set and an outer steel pipe set. According to the liquid nitrogen inner spraying type numerical control drilling and milling machine main shaft device, the machining precision and the cutter durability of materials which are difficult to cut are reduced, liquid nitrogen losses are reduced, the machining range of a complicated structural workpiece is expanded, and the liquid nitrogen inner spraying type numerical control drilling and milling machine main shaft device can be used for machining in different working conditions and high in practicability.

The invention discloses numerical control vibration deep-hole drilling and boring machining equipment, which is characterized by comprising a workpiece arranged on a machine tool body, a drill bit and a drill stem, wherein the workpiece is driven by a main motor to rotate; and the drill bit is driven by the motor to rotate along with the drill stem and is simultaneously driven by a servo reducing motor and a vibration motor to make numerical control feed movement and axial reciprocating vibration. By the deep-hole drilling and boring equipment, the functions of rotating the workpiece and the drill bit in a bidirectional mode and axial vibration drilling can be realized, the severe working conditions and the lubricating effect of a cutting area of the drill bit are improved, the cuttings are automatically controlled, the process range of the equipment is greatly widened, the machining precision indexes of the holes such as roundness and straightness are improved, and the hole machining quality and efficiency are improved further; and moreover, the problem of chip breakage and removal in the prior art is solved, the cuttings can be automatically separated, collected and conveyed, automation of the drilling process is realized, and the equipment can be widely applied to the field of machining of rotary deep-hole parts.

The invention relates to a five-axis controlled motion control mechanism of a water cutting head with the functions of rotation and swing, which comprises a connecting flange (1) and a connecting frame (2) of a rotating shaft. The mechanism is characterized in that a rotating motor support (11) is mounted on the connecting frame (2) of the rotating shaft, a small synchronizing wheel (13) is mounted on an output shaft of a rotating motor (47), the small synchronizing wheel (13) is connected with a big synchronizing wheel (8), the big synchronizing wheel (8) is mounted at the upper end of a hollow main shaft (6), and the lower end of the hollow main shaft (6) is connected with a swing connecting frame (17); and a swing motor (48) is mounted on the swing connecting frame (17), the swing motor(48) is connected with the small synchronizing wheel (19), the small synchronizing wheel (19) is connected with the big synchronizing wheel (20) through a synchronizing belt, the big synchronizing wheel (20) is mounted on a swing shaft (21), and the water cutting head (49) is mounted on the swing shaft (21). As the mechanism increases the control with two degrees of freedom of rotation and swing,the mechanism is conductive to improving the precision and the efficiency of processing of water cutting, simultaneously expands the application range of the water cutting and realizes the five-axiscontrol in the true sense.

The invention provides a method for optimizing laminated structure printed board expanding and shrinking matching and a laminated structure printed board. The method comprises the following steps of material cutting: at least two core boards are provided; acid etching: a core board auxiliary surface is manufactured by using a chemical etching method; hole drilling: riveting holes are drilled at the side of the board; internal optical imaging: internal and external layer core board graphic pre-compensation values are given according to the graphic film pre-compensation requirements; laminating and riveting: riveting is performed with the riveting holes of each layer after stacking of the internal and external layer core boards acting as basic points, and pre-arrangement of the internal and external layer core boards is performed; and laminating and pressing: the pre-arranged internal and external layer core boards are pressed. The core board graphic pre-compensation values are optimized based on statistical analysis of a large volume of expanding and shrinking data, and the expanding and shrinking difference generated in pressing of the internal and external layer core boards is controlled so that the alignment of the pressing layers of the laminated structure core board can be effectively enhanced, the quality of the printed board can be ensured, and the processing technical capacity of the printed board can be enhanced and the processing range can be expanded.

A turret body is provided with a tool spindle for detachably attaching a complex tool so as to be freely rotated with an axial center as its center. The turret body is provided with indexing means for indexing the tool spindle, and clamping means for clamping the tool spindle at an indexed position indexed by the indexing means. The turret body has a function for indexing the tool spindle for attaching the complex tool thereto and a function for clamping, thereby using the complex tool in a turret lathe.